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Overview
Comment:Bring up-to-date with latest features/fixes from trunk.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | http-auth
Files: files | file ages | folders
SHA1:d6259b7582d57f4e5d68feb06282b1605f2ce02e
User & Date: andybradford 2014-03-06 14:54:37
Context
2014-03-11
05:05
Merge in latest load average enhancement (very nice), and other cleanup. Closed-Leaf check-in: 75406df2 user: andybradford tags: http-auth
2014-03-06
14:54
Bring up-to-date with latest features/fixes from trunk. check-in: d6259b75 user: andybradford tags: http-auth
09:42
Cherrypick 170e058520: Better support for MinGW 4.x. Together with minor fossil build adaptations such that a MinGW 4.x build reports the right mingw version. Remark: Building fossil with MinGW 4.x still doesn't produce a working fossil.exe, unless you patch MinGW's <dirent.h> slightly. See: [18cff45a4e] and https://sourceforge.net/p/mingw/bugs/2106/. This MinGW 4.x bug is already open for almost 5 months now. check-in: e68f528b user: jan.nijtmans tags: trunk
2014-02-27
15:40
Merge in latest fixes/development from trunk. check-in: 1fb468ed user: andybradford tags: http-auth
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/blob.c.

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#if defined(_WIN32)
    if( fossil_utf8_to_console(blob_buffer(pBlob), nWrote, 0) >= 0 ){
      return nWrote;
    }
#endif
    fwrite(blob_buffer(pBlob), 1, nWrote, stdout);
  }else{
    int i, nName;
    char *zName, zBuf[1000];

    nName = strlen(zFilename);
    if( nName>=sizeof(zBuf) ){
      zName = mprintf("%s", zFilename);
    }else{
      zName = zBuf;
      memcpy(zName, zFilename, nName+1);
    }
    nName = file_simplify_name(zName, nName, 0);
    for(i=1; i<nName; i++){
      if( zName[i]=='/' ){
        zName[i] = 0;
#if defined(_WIN32) || defined(__CYGWIN__)
        /*
        ** On Windows, local path looks like: C:/develop/project/file.txt
        ** The if stops us from trying to create a directory of a drive letter
        ** C: in this example.
        */
        if( !(i==2 && zName[1]==':') ){
#endif
          if( file_mkdir(zName, 1) && file_isdir(zName)!=1 ){
            fossil_fatal_recursive("unable to create directory %s", zName);
            return 0;
          }
#if defined(_WIN32) || defined(__CYGWIN__)
        }
#endif
        zName[i] = '/';
      }
    }
    out = fossil_fopen(zName, "wb");
    if( out==0 ){
      fossil_fatal_recursive("unable to open file \"%s\" for writing", zName);

      return 0;
    }
    if( zName!=zBuf ) free(zName);
    blob_is_init(pBlob);
    nWrote = fwrite(blob_buffer(pBlob), 1, blob_size(pBlob), out);
    fclose(out);
    if( nWrote!=blob_size(pBlob) ){
      fossil_fatal_recursive("short write: %d of %d bytes to %s", nWrote,
         blob_size(pBlob), zFilename);
    }







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#if defined(_WIN32)
    if( fossil_utf8_to_console(blob_buffer(pBlob), nWrote, 0) >= 0 ){
      return nWrote;
    }
#endif
    fwrite(blob_buffer(pBlob), 1, nWrote, stdout);
  }else{



    file_mkfolder(zFilename, 1);




























    out = fossil_fopen(zFilename, "wb");
    if( out==0 ){
      fossil_fatal_recursive("unable to open file \"%s\" for writing",
                             zFilename);
      return 0;
    }

    blob_is_init(pBlob);
    nWrote = fwrite(blob_buffer(pBlob), 1, blob_size(pBlob), out);
    fclose(out);
    if( nWrote!=blob_size(pBlob) ){
      fossil_fatal_recursive("short write: %d of %d bytes to %s", nWrote,
         blob_size(pBlob), zFilename);
    }

Changes to src/browse.c.

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  return zClass;
}

/*
** Look at all file containing in the version "vid".  Construct a
** temporary table named "fileage" that contains the file-id for each
** files, the pathname, the check-in where the file was added, and the
** mtime on that checkin.

*/
int compute_fileage(int vid){
  Manifest *pManifest;
  ManifestFile *pFile;
  int nFile = 0;
  double vmtime;
  Stmt ins;
  Stmt q1, q2, q3;
  Stmt upd;

  db_multi_exec(
    /*"DROP TABLE IF EXISTS temp.fileage;"*/
    "CREATE TEMP TABLE fileage("
    "  fid INTEGER,"
    "  mid INTEGER,"
    "  mtime DATETIME,"
    "  pathname TEXT"
................................................................................
  if( pManifest==0 ) return 1;
  manifest_file_rewind(pManifest);
  db_prepare(&ins,
     "INSERT INTO temp.fileage(fid, pathname)"
     "  SELECT rid, :path FROM blob WHERE uuid=:uuid"
  );
  while( (pFile = manifest_file_next(pManifest, 0))!=0 ){

    db_bind_text(&ins, ":uuid", pFile->zUuid);
    db_bind_text(&ins, ":path", pFile->zName);
    db_step(&ins);
    db_reset(&ins);
    nFile++;
  }
  db_finalize(&ins);
................................................................................
  return 0;
}

/*
** WEBPAGE:  fileage
**
** Parameters:
**   name=VERSION


*/
void fileage_page(void){
  int rid;
  const char *zName;
  char *zBaseTime;

  Stmt q;
  double baseTime;
  int lastMid = -1;

  login_check_credentials();
  if( !g.perm.Read ){ login_needed(); return; }
  zName = P("name");
  if( zName==0 ) zName = "tip";
  rid = symbolic_name_to_rid(zName, "ci");
  if( rid==0 ){
    fossil_fatal("not a valid check-in: %s", zName);
  }
  style_submenu_element("Tree-View", "Tree-View", "%R/tree?ci=%T", zName);
  style_header("File Ages", zName);

  compute_fileage(rid);
  baseTime = db_double(0.0, "SELECT mtime FROM event WHERE objid=%d", rid);
  zBaseTime = db_text("","SELECT datetime(%.20g%s)", baseTime, timeline_utc());
  @ <h2>File Ages For Check-in
  @ %z(href("%R/info?name=%T",zName))%h(zName)</a></h2>
  @
  @ <p>The times given are relative to
  @ %z(href("%R/timeline?c=%T",zBaseTime))%s(zBaseTime)</a>, which is the







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  return zClass;
}

/*
** Look at all file containing in the version "vid".  Construct a
** temporary table named "fileage" that contains the file-id for each
** files, the pathname, the check-in where the file was added, and the
** mtime on that checkin. If zGlob and *zGlob then only files matching
** the given glob are computed.
*/
int compute_fileage(int vid, char const * zGlob){
  Manifest *pManifest;
  ManifestFile *pFile;
  int nFile = 0;
  double vmtime;
  Stmt ins;
  Stmt q1, q2, q3;
  Stmt upd;
  if(zGlob && !*zGlob) zGlob = NULL;
  db_multi_exec(
    /*"DROP TABLE IF EXISTS temp.fileage;"*/
    "CREATE TEMP TABLE fileage("
    "  fid INTEGER,"
    "  mid INTEGER,"
    "  mtime DATETIME,"
    "  pathname TEXT"
................................................................................
  if( pManifest==0 ) return 1;
  manifest_file_rewind(pManifest);
  db_prepare(&ins,
     "INSERT INTO temp.fileage(fid, pathname)"
     "  SELECT rid, :path FROM blob WHERE uuid=:uuid"
  );
  while( (pFile = manifest_file_next(pManifest, 0))!=0 ){
    if(zGlob && !strglob(zGlob, pFile->zName)) continue;
    db_bind_text(&ins, ":uuid", pFile->zUuid);
    db_bind_text(&ins, ":path", pFile->zName);
    db_step(&ins);
    db_reset(&ins);
    nFile++;
  }
  db_finalize(&ins);
................................................................................
  return 0;
}

/*
** WEBPAGE:  fileage
**
** Parameters:
**   name=VERSION   Selects the checkin version (default=tip).
**   glob=STRING    Only shows files matching this glob pattern
**                  (e.g. *.c or *.txt).
*/
void fileage_page(void){
  int rid;
  const char *zName;
  char *zBaseTime;
  char const * zGlob;
  Stmt q;
  double baseTime;
  int lastMid = -1;

  login_check_credentials();
  if( !g.perm.Read ){ login_needed(); return; }
  zName = P("name");
  if( zName==0 ) zName = "tip";
  rid = symbolic_name_to_rid(zName, "ci");
  if( rid==0 ){
    fossil_fatal("not a valid check-in: %s", zName);
  }
  style_submenu_element("Tree-View", "Tree-View", "%R/tree?ci=%T", zName);
  style_header("File Ages", zName);
  zGlob = P("glob");
  compute_fileage(rid,zGlob);
  baseTime = db_double(0.0, "SELECT mtime FROM event WHERE objid=%d", rid);
  zBaseTime = db_text("","SELECT datetime(%.20g%s)", baseTime, timeline_utc());
  @ <h2>File Ages For Check-in
  @ %z(href("%R/info?name=%T",zName))%h(zName)</a></h2>
  @
  @ <p>The times given are relative to
  @ %z(href("%R/timeline?c=%T",zBaseTime))%s(zBaseTime)</a>, which is the

Changes to src/checkin.c.

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  ** array is allocated to contain the "id" field from the vfile table
  ** for each file to be committed. Or, if aCommitFile is NULL, all files
  ** should be committed.
  */
  if( select_commit_files() ){
    prompt_user("continue (y/N)? ", &ans);
    cReply = blob_str(&ans)[0];
    if( cReply!='y' && cReply!='Y' ) fossil_exit(1);;
  }
  isAMerge = db_exists("SELECT 1 FROM vmerge WHERE id=0 OR id<-2");
  if( g.aCommitFile && isAMerge ){
    fossil_fatal("cannot do a partial commit of a merge");
  }

  /* Doing "fossil mv fileA fileB; fossil add fileA; fossil commit fileA"
................................................................................
    blob_zero(&comment);
  }else{
    char *zInit = db_text(0, "SELECT value FROM vvar WHERE name='ci-comment'");
    prepare_commit_comment(&comment, zInit, &sCiInfo, vid);
    if( zInit && zInit[0] && fossil_strcmp(zInit, blob_str(&comment))==0 ){
      prompt_user("unchanged check-in comment.  continue (y/N)? ", &ans);
      cReply = blob_str(&ans)[0];
      if( cReply!='y' && cReply!='Y' ) fossil_exit(1);;
    }
    free(zInit);
  }
  if( blob_size(&comment)==0 ){
    if( !dryRunFlag ){
      prompt_user("empty check-in comment.  continue (y/N)? ", &ans);
      cReply = blob_str(&ans)[0];







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  ** array is allocated to contain the "id" field from the vfile table
  ** for each file to be committed. Or, if aCommitFile is NULL, all files
  ** should be committed.
  */
  if( select_commit_files() ){
    prompt_user("continue (y/N)? ", &ans);
    cReply = blob_str(&ans)[0];
    if( cReply!='y' && cReply!='Y' ) fossil_exit(1);
  }
  isAMerge = db_exists("SELECT 1 FROM vmerge WHERE id=0 OR id<-2");
  if( g.aCommitFile && isAMerge ){
    fossil_fatal("cannot do a partial commit of a merge");
  }

  /* Doing "fossil mv fileA fileB; fossil add fileA; fossil commit fileA"
................................................................................
    blob_zero(&comment);
  }else{
    char *zInit = db_text(0, "SELECT value FROM vvar WHERE name='ci-comment'");
    prepare_commit_comment(&comment, zInit, &sCiInfo, vid);
    if( zInit && zInit[0] && fossil_strcmp(zInit, blob_str(&comment))==0 ){
      prompt_user("unchanged check-in comment.  continue (y/N)? ", &ans);
      cReply = blob_str(&ans)[0];
      if( cReply!='y' && cReply!='Y' ) fossil_exit(1);
    }
    free(zInit);
  }
  if( blob_size(&comment)==0 ){
    if( !dryRunFlag ){
      prompt_user("empty check-in comment.  continue (y/N)? ", &ans);
      cReply = blob_str(&ans)[0];

Changes to src/checkout.c.

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    }
    if( !db_exists("SELECT 1 FROM vfile WHERE pathname='manifest.uuid'") ){
      zManFile = mprintf("%smanifest.uuid", g.zLocalRoot);
      file_delete(zManFile);
      free(zManFile);
    }
  }
    
}

/*
** COMMAND: checkout*
** COMMAND: co*
**
** Usage: %fossil checkout ?VERSION | --latest? ?OPTIONS?
................................................................................
** will abort if there are edited files in the current checkout unless
** the --force option appears on the command-line.  The --keep option
** leaves files on disk unchanged, except the manifest and manifest.uuid
** files.
**
** The --latest flag can be used in place of VERSION to checkout the
** latest version in the repository.
** 
** Options:
**    --force   Ignore edited files in the current checkout
**    --keep    Only update the manifest and manifest.uuid files
**
** See also: update
*/
void checkout_cmd(void){
................................................................................
  int forceFlag;                 /* Force checkout even if edits exist */
  int keepFlag;                  /* Do not change any files on disk */
  int latestFlag;                /* Checkout the latest version */
  char *zVers;                   /* Version to checkout */
  int promptFlag;                /* True to prompt before overwriting */
  int vid, prior;
  Blob cksum1, cksum1b, cksum2;
  
  db_must_be_within_tree();
  db_begin_transaction();
  forceFlag = find_option("force","f",0)!=0;
  keepFlag = find_option("keep",0,0)!=0;
  latestFlag = find_option("latest",0,0)!=0;
  promptFlag = find_option("prompt",0,0)!=0 || forceFlag==0;
  if( (latestFlag!=0 && g.argc!=2) || (latestFlag==0 && g.argc!=3) ){







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    }
    if( !db_exists("SELECT 1 FROM vfile WHERE pathname='manifest.uuid'") ){
      zManFile = mprintf("%smanifest.uuid", g.zLocalRoot);
      file_delete(zManFile);
      free(zManFile);
    }
  }

}

/*
** COMMAND: checkout*
** COMMAND: co*
**
** Usage: %fossil checkout ?VERSION | --latest? ?OPTIONS?
................................................................................
** will abort if there are edited files in the current checkout unless
** the --force option appears on the command-line.  The --keep option
** leaves files on disk unchanged, except the manifest and manifest.uuid
** files.
**
** The --latest flag can be used in place of VERSION to checkout the
** latest version in the repository.
**
** Options:
**    --force   Ignore edited files in the current checkout
**    --keep    Only update the manifest and manifest.uuid files
**
** See also: update
*/
void checkout_cmd(void){
................................................................................
  int forceFlag;                 /* Force checkout even if edits exist */
  int keepFlag;                  /* Do not change any files on disk */
  int latestFlag;                /* Checkout the latest version */
  char *zVers;                   /* Version to checkout */
  int promptFlag;                /* True to prompt before overwriting */
  int vid, prior;
  Blob cksum1, cksum1b, cksum2;

  db_must_be_within_tree();
  db_begin_transaction();
  forceFlag = find_option("force","f",0)!=0;
  keepFlag = find_option("keep",0,0)!=0;
  latestFlag = find_option("latest",0,0)!=0;
  promptFlag = find_option("prompt",0,0)!=0 || forceFlag==0;
  if( (latestFlag!=0 && g.argc!=2) || (latestFlag==0 && g.argc!=3) ){

Changes to src/config.h.

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#    if defined(COMPILER_VERSION) && !defined(NO_COMPILER_VERSION)
#      define COMPILER_NAME "msc-" COMPILER_VERSION
#    else
#      define COMPILER_NAME "msc"
#    endif
#  elif defined(__MINGW32__)
#    if !defined(COMPILER_VERSION)










#      if defined(__MINGW32_VERSION)
#        if defined(__GNUC__)
#          if defined(__VERSION__)
#            define COMPILER_VERSION COMPILER_STRINGIFY(__MINGW32_VERSION) "-gcc-" __VERSION__
#          else
#            define COMPILER_VERSION COMPILER_STRINGIFY(__MINGW32_VERSION) "-gcc"
#          endif
#        else







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#    if defined(COMPILER_VERSION) && !defined(NO_COMPILER_VERSION)
#      define COMPILER_NAME "msc-" COMPILER_VERSION
#    else
#      define COMPILER_NAME "msc"
#    endif
#  elif defined(__MINGW32__)
#    if !defined(COMPILER_VERSION)
#      if defined(__MINGW_VERSION)
#        if defined(__GNUC__)
#          if defined(__VERSION__)
#            define COMPILER_VERSION COMPILER_STRINGIFY(__MINGW_VERSION) "-gcc-" __VERSION__
#          else
#            define COMPILER_VERSION COMPILER_STRINGIFY(__MINGW_VERSION) "-gcc"
#          endif
#        else
#          define COMPILER_VERSION COMPILER_STRINGIFY(__MINGW_VERSION)
#        endif
#      elif defined(__MINGW32_VERSION)
#        if defined(__GNUC__)
#          if defined(__VERSION__)
#            define COMPILER_VERSION COMPILER_STRINGIFY(__MINGW32_VERSION) "-gcc-" __VERSION__
#          else
#            define COMPILER_VERSION COMPILER_STRINGIFY(__MINGW32_VERSION) "-gcc"
#          endif
#        else

Changes to src/diff.c.

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1851
1852
1853
1854



1855
1856
1857
1858
1859
1860
1861
....
1928
1929
1930
1931
1932
1933
1934
1935



1936
1937
1938
1939
1940
1941
1942
....
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961

1962
1963
1964
1965
1966
1967
1968

1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
....
2032
2033
2034
2035
2036
2037
2038
2039

2040
2041
2042
2043
2044
2045
2046
....
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
....
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
....
2124
2125
2126
2127
2128
2129
2130

2131
2132
2133
2134
2135
2136
2137
....
2138
2139
2140
2141
2142
2143
2144
2145
2146


2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165


2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176



2177

2178
2179
2180
2181
2182
2183








2184
2185
2186
2187
2188
2189
2190
....
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
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2220
....
2236
2237
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2240
2241
2242
2243
2244
2245
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2249
2250
2251
2252
2253
2254
2255
2256

2257
2258
2259
2260
2261
2262
2263
....
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
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2280
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2292
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2295

2296
2297
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2300
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2302
2303
2304
2305
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2308
2309
2310
2311
2312
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....
2316
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2318
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2321
2322

2323
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2325
2326
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2328
2329
2330
2331



2332
2333
2334
2335
2336
2337
2338
....
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
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2366
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2368
2369
2370
2371
2372

2373
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2394
#if INTERFACE
/*
** Flag parameters to the text_diff() routine used to control the formatting
** of the diff output.
*/
#define DIFF_CONTEXT_MASK ((u64)0x0000ffff) /* Lines of context. Default if 0 */
#define DIFF_WIDTH_MASK   ((u64)0x00ff0000) /* side-by-side column width */

#define DIFF_IGNORE_EOLWS ((u64)0x01000000) /* Ignore end-of-line whitespace */
#define DIFF_SIDEBYSIDE   ((u64)0x02000000) /* Generate a side-by-side diff */
#define DIFF_VERBOSE      ((u64)0x04000000) /* Missing shown as empty files */
#define DIFF_BRIEF        ((u64)0x08000000) /* Show filenames only */
#define DIFF_INLINE       ((u64)0x00000000) /* Inline (not side-by-side) diff */

#define DIFF_HTML         ((u64)0x10000000) /* Render for HTML */
#define DIFF_LINENO       ((u64)0x20000000) /* Show line numbers */
#define DIFF_WS_WARNING   ((u64)0x40000000) /* Warn about whitespace */
#define DIFF_NOOPT        (((u64)0x01)<<32) /* Suppress optimizations (debug) */
#define DIFF_INVERT       (((u64)0x02)<<32) /* Invert the diff (debug) */
#define DIFF_CONTEXT_EX   (((u64)0x04)<<32) /* Use context even if zero */
#define DIFF_NOTTOOBIG    (((u64)0x08)<<32) /* Only display if not too big */

/*
** These error messages are shared in multiple locations.  They are defined
................................................................................

#define DIFF_CANNOT_COMPUTE_SYMLINK \
    "cannot compute difference between symlink and regular file\n"

#define DIFF_TOO_MANY_CHANGES \
    "more than 10,000 changes\n"




/*
** Maximum length of a line in a text file, in bytes.  (2**13 = 8192 bytes)
*/
#define LENGTH_MASK_SZ  13
#define LENGTH_MASK     ((1<<LENGTH_MASK_SZ)-1)

#endif /* INTERFACE */
................................................................................
** of the line.  If any line is longer than LENGTH_MASK characters,
** the file is considered binary.
*/
typedef struct DLine DLine;
struct DLine {
  const char *z;        /* The text of the line */
  unsigned int h;       /* Hash of the line */

  unsigned int iNext;   /* 1+(Index of next line with same the same hash) */

  /* an array of DLine elements serves two purposes.  The fields
  ** above are one per line of input text.  But each entry is also
  ** a bucket in a hash table, as follows: */
  unsigned int iHash;   /* 1+(first entry in the hash chain) */
};
................................................................................
**
** Return 0 if the file is binary or contains a line that is
** too long.
**
** Profiling show that in most cases this routine consumes the bulk of
** the CPU time on a diff.
*/
static DLine *break_into_lines(const char *z, int n, int *pnLine, int ignoreWS){
  int nLine, i, j, k, x;
  unsigned int h, h2;
  DLine *a;

  /* Count the number of lines.  Allocate space to hold
  ** the returned array.
  */
  for(i=j=0, nLine=1; i<n; i++, j++){
................................................................................
  if( n==0 ){
    *pnLine = 0;
    return a;
  }

  /* Fill in the array */
  for(i=0; i<nLine; i++){
    a[i].z = z;
    for(j=0; z[j] && z[j]!='\n'; j++){}
    k = j;



    while( ignoreWS && k>0 && fossil_isspace(z[k-1]) ){ k--; }













    for(h=0, x=0; x<=k; x++){
      h = h ^ (h<<2) ^ z[x];
    }
    a[i].h = h = (h<<LENGTH_MASK_SZ) | k;;
    h2 = h % nLine;
    a[i].iNext = a[h2].iHash;
    a[h2].iHash = i+1;
    z += j+1;
  }

  /* Return results */
................................................................................
    if( pRe && re_dline_match(pRe, pLine, 1)==0 ){
      cPrefix = ' ';
    }else if( cPrefix=='+' ){
      blob_append(pOut, "<span class=\"diffadd\">", -1);
    }else if( cPrefix=='-' ){
      blob_append(pOut, "<span class=\"diffrm\">", -1);
    }



    htmlize_to_blob(pOut, pLine->z, (pLine->h & LENGTH_MASK));
    if( cPrefix!=' ' ){
      blob_append(pOut, "</span>", -1);
    }
  }else{



    blob_append(pOut, pLine->z, pLine->h & LENGTH_MASK);
  }
  blob_append(pOut, "\n", 1);
}

/*
** Add two line numbers to the beginning of an output line for a context
................................................................................
        needEndSpan = 0;
        if( p->iEnd2 ){
          p->iEnd = p->iEnd2;
          p->iEnd2 = 0;
        }
      }
    }



    if( c=='\t' && !p->escHtml ){
      blob_append(pCol, " ", 1);
      while( (k&7)!=7 && (p->escHtml || k<w) ){
        blob_append(pCol, " ", 1);
        k++;
      }
    }else if( c=='\r' || c=='\f' ){
................................................................................
  }
  if( needEndSpan ){
    blob_append(pCol, "</span>", 7);
  }
  if( col==SBS_TXTB ){
    sbsWriteNewlines(p);
  }else if( !p->escHtml ){
    sbsWriteSpace(p, w-k, SBS_TXTA);
  }
}

/*
** Append a column to the final output blob.
*/
static void sbsWriteColumn(Blob *pOut, Blob *pCol, int col){
................................................................................
      s.iStart = s.iEnd = -1;
      sbsWriteText(&s, &A[a+j], SBS_TXTA);
      sbsWriteMarker(&s, "   ", "");
      sbsWriteLineno(&s, b+j, SBS_LNB);
      sbsWriteText(&s, &B[b+j], SBS_TXTB);
    }
  }
  
  if( s.escHtml && blob_size(s.apCols[SBS_LNA])>0 ){
    blob_append(pOut, "<table class=\"sbsdiffcols\"><tr>\n", -1);
    for(i=SBS_LNA; i<=SBS_TXTB; i++){
      sbsWriteColumn(pOut, s.apCols[i], i);
      blob_reset(s.apCols[i]);
    }
    blob_append(pOut, "</tr></table>\n", -1);
................................................................................
int *text_diff(
  Blob *pA_Blob,   /* FROM file */
  Blob *pB_Blob,   /* TO file */
  Blob *pOut,      /* Write diff here if not NULL */
  ReCompiled *pRe, /* Only output changes where this Regexp matches */
  u64 diffFlags    /* DIFF_* flags defined above */
){
  int ignoreEolWs; /* Ignore whitespace at the end of lines */
  DContext c;

  if( diffFlags & DIFF_INVERT ){
    Blob *pTemp = pA_Blob;
    pA_Blob = pB_Blob;
    pB_Blob = pTemp;
  }
  ignoreEolWs = (diffFlags & DIFF_IGNORE_EOLWS)!=0;
  blob_to_utf8_no_bom(pA_Blob, 0);
  blob_to_utf8_no_bom(pB_Blob, 0);

  /* Prepare the input files */
  memset(&c, 0, sizeof(c));
  c.aFrom = break_into_lines(blob_str(pA_Blob), blob_size(pA_Blob),
                             &c.nFrom, ignoreEolWs);
  c.aTo = break_into_lines(blob_str(pB_Blob), blob_size(pB_Blob),
                           &c.nTo, ignoreEolWs);
  if( c.aFrom==0 || c.aTo==0 ){
    fossil_free(c.aFrom);
    fossil_free(c.aTo);
    if( pOut ){
      diff_errmsg(pOut, DIFF_CANNOT_COMPUTE_BINARY, diffFlags);
    }
    return 0;
  }

  /* Compute the difference */
  diff_all(&c);







  if( (diffFlags & DIFF_NOTTOOBIG)!=0 ){
    int i, m, n;
    int *a = c.aEdit;
    int mx = c.nEdit;
    for(i=m=n=0; i<mx; i+=3){ m += a[i]; n += a[i+1]+a[i+2]; }
    if( n>10000 ){
      fossil_free(c.aFrom);
      fossil_free(c.aTo);
      fossil_free(c.aEdit);
      diff_errmsg(pOut, DIFF_TOO_MANY_CHANGES, diffFlags);
      return 0;
    }
  }
  if( (diffFlags & DIFF_NOOPT)==0 ){
    diff_optimize(&c);
  }

................................................................................
** Process diff-related command-line options and return an appropriate
** "diffFlags" integer.
**
**   --brief                Show filenames only    DIFF_BRIEF
**   --context|-c N         N lines of context.    DIFF_CONTEXT_MASK
**   --html                 Format for HTML        DIFF_HTML
**   --invert               Invert the diff        DIFF_INVERT


**   --linenum|-n           Show line numbers      DIFF_LINENO
**   --noopt                Disable optimization   DIFF_NOOPT
**   --side-by-side|-y      Side-by-side diff.     DIFF_SIDEBYSIDE
**   --unified              Unified diff.          ~DIFF_SIDEBYSIDE

**   --width|-W N           N character lines.     DIFF_WIDTH_MASK
*/
u64 diff_options(void){
  u64 diffFlags = 0;
  const char *z;
  int f;
  if( find_option("side-by-side","y",0)!=0 ) diffFlags |= DIFF_SIDEBYSIDE;
................................................................................
  }
  if( (z = find_option("width","W",1))!=0 && (f = atoi(z))>0 ){
    f *= DIFF_CONTEXT_MASK+1;
    if( f > DIFF_WIDTH_MASK ) f = DIFF_CONTEXT_MASK;
    diffFlags |= f;
  }
  if( find_option("html",0,0)!=0 ) diffFlags |= DIFF_HTML;



  if( find_option("linenum","n",0)!=0 ) diffFlags |= DIFF_LINENO;
  if( find_option("noopt",0,0)!=0 ) diffFlags |= DIFF_NOOPT;
  if( find_option("invert",0,0)!=0 ) diffFlags |= DIFF_INVERT;
  if( find_option("brief",0,0)!=0 ) diffFlags |= DIFF_BRIEF;
  return diffFlags;
}

................................................................................
** of the following structure.
*/
typedef struct Annotator Annotator;
struct Annotator {
  DContext c;       /* The diff-engine context */
  struct AnnLine {  /* Lines of the original files... */
    const char *z;       /* The text of the line */
    short int n;         /* Number of bytes (omitting trailing space and \n) */



    short int iVers;     /* Level at which tag was set */
  } *aOrig;
  int nOrig;        /* Number of elements in aOrig[] */
  int nVers;        /* Number of versions analyzed */
  int bLimit;       /* True if the iLimit was reached */
  struct AnnVers {
    const char *zFUuid;   /* File being analyzed */
................................................................................
};

/*
** Initialize the annotation process by specifying the file that is
** to be annotated.  The annotator takes control of the input Blob and
** will release it when it is finished with it.
*/
static int annotation_start(Annotator *p, Blob *pInput){
  int i;

  memset(p, 0, sizeof(*p));
  p->c.aTo = break_into_lines(blob_str(pInput), blob_size(pInput),&p->c.nTo,1);

  if( p->c.aTo==0 ){
    return 1;
  }
  p->aOrig = fossil_malloc( sizeof(p->aOrig[0])*p->c.nTo );
  for(i=0; i<p->c.nTo; i++){
    p->aOrig[i].z = p->c.aTo[i].z;
    p->aOrig[i].n = p->c.aTo[i].h & LENGTH_MASK;

    p->aOrig[i].iVers = -1;
  }
  p->nOrig = p->c.nTo;
  return 0;
}

/*
** The input pParent is the next most recent ancestor of the file
** being annotated.  Do another step of the annotation.  Return true
** if additional annotation is required.  zPName is the tag to insert
** on each line of the file being annotated that was contributed by
** pParent.  Memory to hold zPName is leaked.
*/
static int annotation_step(Annotator *p, Blob *pParent, int iVers){
  int i, j;
  int lnTo;

  /* Prepare the parent file to be diffed */
  p->c.aFrom = break_into_lines(blob_str(pParent), blob_size(pParent),
                                &p->c.nFrom, 1);
  if( p->c.aFrom==0 ){
    return 1;
  }

  /* Compute the differences going from pParent to the file being
  ** annotated. */
  diff_all(&p->c);
................................................................................
** it was checked in (mlink.mid).
*/
static void annotate_file(
  Annotator *p,        /* The annotator */
  int fnid,            /* The name of the file to be annotated */
  int mid,             /* Use the version of the file in this check-in */
  int iLimit,          /* Limit the number of levels if greater than zero */
  int annFlags         /* Flags to alter the annotation */

){
  Blob toAnnotate;     /* Text of the final (mid) version of the file */
  Blob step;           /* Text of previous revision */
  int rid;             /* Artifact ID of the file being annotated */
  Stmt q;              /* Query returning all ancestor versions */
  Stmt ins;            /* Inserts into the temporary VSEEN table */
  int cnt = 0;         /* Number of versions examined */
................................................................................
  if( rid==0 ){
    fossil_fatal("file #%d is unchanged in manifest #%d", fnid, mid);
  }
  if( !content_get(rid, &toAnnotate) ){
    fossil_fatal("unable to retrieve content of artifact #%d", rid);
  }
  if( iLimit<=0 ) iLimit = 1000000000;
  annotation_start(p, &toAnnotate);
  db_begin_transaction();
  db_multi_exec(
     "CREATE TEMP TABLE IF NOT EXISTS vseen(rid INTEGER PRIMARY KEY);"
     "DELETE FROM vseen;"
  );

  db_prepare(&ins, "INSERT OR IGNORE INTO vseen(rid) VALUES(:rid)");
................................................................................
    p->aVers = fossil_realloc(p->aVers, (p->nVers+1)*sizeof(p->aVers[0]));
    p->aVers[p->nVers].zFUuid = fossil_strdup(db_column_text(&q, 0));
    p->aVers[p->nVers].zMUuid = fossil_strdup(db_column_text(&q, 1));
    p->aVers[p->nVers].zDate = fossil_strdup(db_column_text(&q, 2));
    p->aVers[p->nVers].zUser = fossil_strdup(db_column_text(&q, 3));
    if( p->nVers ){
      content_get(rid, &step);
      annotation_step(p, &step, p->nVers-1);
      blob_reset(&step);
    }
    p->nVers++;
    db_bind_int(&ins, ":rid", rid);
    db_step(&ins);
    db_reset(&ins);
    db_reset(&q);
................................................................................
  c |= (x1*(n-i) + x2*i)/n & 0xff;
  return c;
}

/*
** WEBPAGE: annotate
** WEBPAGE: blame

**
** Query parameters:
**
**    checkin=ID          The manifest ID at which to start the annotation
**    filename=FILENAME   The filename.
**    filevers            Show file versions rather than check-in versions
**    log=BOOLEAN         Show a log of versions analyzed
................................................................................
**    limit=N             Limit the search depth to N ancestors
*/
void annotation_page(void){
  int mid;
  int fnid;
  int i;
  int iLimit;            /* Depth limit */
  int annFlags = ANN_FILE_ANCEST;  
  int showLog = 0;       /* True to display the log */


  const char *zFilename; /* Name of file to annotate */
  const char *zCI;       /* The check-in containing zFilename */
  Annotator ann;
  HQuery url;
  struct AnnVers *p;
  unsigned clr1, clr2, clr;
  int bBlame = g.zPath[0]=='b';/* True for BLAME output.  False for ANNOTATE. */

  /* Gather query parameters */
  showLog = atoi(PD("log","1"));
  login_check_credentials();
  if( !g.perm.Read ){ login_needed(); return; }
  if( exclude_spiders("annotate") ) return;
  mid = name_to_typed_rid(PD("checkin","0"),"ci");
  zFilename = P("filename");
  fnid = db_int(0, "SELECT fnid FROM filename WHERE name=%Q", zFilename);
  if( mid==0 || fnid==0 ){ fossil_redirect_home(); }
  iLimit = atoi(PD("limit","20"));
  if( P("filevers") ) annFlags |= ANN_FILE_VERS;


  if( !db_exists("SELECT 1 FROM mlink WHERE mid=%d AND fnid=%d",mid,fnid) ){
    fossil_redirect_home();
  }

  /* compute the annotation */
  compute_direct_ancestors(mid, 10000000);
  annotate_file(&ann, fnid, mid, iLimit, annFlags);
  zCI = ann.aVers[0].zMUuid;

  /* generate the web page */
  style_header("Annotation For %h", zFilename);



  url_initialize(&url, "annotate");

  url_add_parameter(&url, "checkin", P("checkin"));
  url_add_parameter(&url, "filename", zFilename);
  if( iLimit!=20 ){
    url_add_parameter(&url, "limit", sqlite3_mprintf("%d", iLimit));
  }
  url_add_parameter(&url, "log", showLog ? "1" : "0");








  if( showLog ){
    style_submenu_element("Hide Log", "Hide Log",
       "%s", url_render(&url, "log", "0", 0, 0));
  }else{
    style_submenu_element("Show Log", "Show Log",
       "%s", url_render(&url, "log", "1", 0, 0));
  }
................................................................................
  }else{
    clr1 = 0xffb5b5;  /* Recent changes: red (hot) */
    clr2 = 0xb5e0ff;  /* Older changes: blue (cold) */
  }
  for(p=ann.aVers, i=0; i<ann.nVers; i++, p++){
    clr = gradient_color(clr1, clr2, ann.nVers-1, i);
    ann.aVers[i].zBgColor = mprintf("#%06x", clr);
  }  

  if( showLog ){
    char *zLink = href("%R/finfo?name=%t&ci=%S",zFilename,zCI);
    @ <h2>Ancestors of %z(zLink)%h(zFilename)</a> analyzed:</h2>
    @ <ol>
    for(p=ann.aVers, i=0; i<ann.nVers; i++, p++){
      @ <li><span style='background-color:%s(p->zBgColor);'>%s(p->zDate)
................................................................................
      }
#endif
    }
    @ </ol>
    @ <hr>
  }
  if( !ann.bLimit ){
    @ <h2>Origin for each line in 
    @ %z(href("%R/finfo?name=%h&ci=%S", zFilename, zCI))%h(zFilename)</a>
    @ from check-in %z(href("%R/info/%S",zCI))%S(zCI)</a>:</h2>
    iLimit = ann.nVers+10;
  }else{
    @ <h2>Lines added by the %d(iLimit) most recent ancestors of
    @ %z(href("%R/finfo?name=%h&ci=%S", zFilename, zCI))%h(zFilename)</a>
    @ from check-in %z(href("%R/info/%S",zCI))%S(zCI)</a>:</h2>
  }
  @ <pre>
  for(i=0; i<ann.nOrig; i++){
    int iVers = ann.aOrig[i].iVers;
    char *z = (char*)ann.aOrig[i].z;
    int n = ann.aOrig[i].n;

    char zPrefix[300];
    z[n] = 0;
    if( iLimit>ann.nVers && iVers<0 ) iVers = ann.nVers-1;

    if( bBlame ){
      if( iVers>=0 ){
        struct AnnVers *p = ann.aVers+iVers;
................................................................................
        char *zLink = xhref("target='infowindow'", "%R/info/%S", p->zMUuid);
        sqlite3_snprintf(sizeof(zPrefix), zPrefix,
             "<span style='background-color:%s'>"
             "%s%.10s</a> %s</span> %13.13s:",
             p->zBgColor, zLink, p->zMUuid, p->zDate, p->zUser);
        fossil_free(zLink);
      }else{
        sqlite3_snprintf(sizeof(zPrefix), zPrefix, "%36s", "");
      }
    }else{
      if( iVers>=0 ){
        struct AnnVers *p = ann.aVers+iVers;
        char *zLink = xhref("target='infowindow'", "%R/info/%S", p->zMUuid);
        sqlite3_snprintf(sizeof(zPrefix), zPrefix,
             "<span style='background-color:%s'>"
             "%s%.10s</a> %s</span> %4d:",
             p->zBgColor, zLink, p->zMUuid, p->zDate, i+1);
        fossil_free(zLink);
      }else{
        sqlite3_snprintf(sizeof(zPrefix), zPrefix, "%22s%4d:", "", i+1);
      }
    }
    @ %s(zPrefix) %h(z)

  }
  @ </pre>
  style_footer();
}

/*
** COMMAND: annotate
** COMMAND: blame

**
** %fossil (annotate|blame) ?OPTIONS? FILENAME
**
** Output the text of a file with markings to show when each line of
** the file was last modified.  The "annotate" command shows line numbers
** and omits the username.  The "blame" command shows the user who made each
** checkin and omits the line number.
**
** Options:
**   --filevers      Show file version numbers rather than check-in versions
**   -l|--log        List all versions analyzed
**   -n|--limit N    Only look backwards in time by N versions



**
** See also: info, finfo, timeline
*/
void annotate_cmd(void){
  int fnid;         /* Filename ID */
  int fid;          /* File instance ID */
  int mid;          /* Manifest where file was checked in */
................................................................................
  Blob treename;    /* FILENAME translated to canonical form */
  char *zFilename;  /* Canonical filename */
  Annotator ann;    /* The annotation of the file */
  int i;            /* Loop counter */
  const char *zLimit; /* The value to the -n|--limit option */
  int iLimit;       /* How far back in time to look */
  int showLog;      /* True to show the log */

  int fileVers;     /* Show file version instead of check-in versions */
  int annFlags = 0; /* Flags to control annotation properties */
  int bBlame = 0;   /* True for BLAME output.  False for ANNOTATE. */

  bBlame = g.argv[1][0]=='b';
  zLimit = find_option("limit","n",1);
  if( zLimit==0 || zLimit[0]==0 ) zLimit = "-1";
  iLimit = atoi(zLimit);
  showLog = find_option("log","l",0)!=0;



  fileVers = find_option("filevers",0,0)!=0;
  db_must_be_within_tree();
  if( g.argc<3 ) {
    usage("FILENAME");
  }
  file_tree_name(g.argv[2], &treename, 1);
  zFilename = blob_str(&treename);
................................................................................
          " WHERE mlink.fid=%d AND mlink.fnid=%d AND mlink.mid=ancestor.rid"
          " ORDER BY ancestor.generation ASC LIMIT 1",
          fid, fnid);
  if( mid==0 ){
    fossil_fatal("unable to find manifest");
  }
  annFlags |= ANN_FILE_ANCEST;
  annotate_file(&ann, fnid, mid, iLimit, annFlags);
  if( showLog ){
    struct AnnVers *p;
    for(p=ann.aVers, i=0; i<ann.nVers; i++, p++){
      fossil_print("version %3d: %s %.10s file %.10s\n",
                   i+1, p->zDate, p->zMUuid, p->zFUuid);
    }
    fossil_print("---------------------------------------------------\n");
  }
  for(i=0; i<ann.nOrig; i++){
    int iVers = ann.aOrig[i].iVers;
    char *z = (char*)ann.aOrig[i].z;

    int n = ann.aOrig[i].n;
    struct AnnVers *p;
    if( iLimit>ann.nVers && iVers<0 ) iVers = ann.nVers-1;
    p = ann.aVers + iVers;
    if( bBlame ){
      if( iVers>=0 ){
        fossil_print("%.10s %s %13.13s: %.*s\n",
             fileVers ? p->zFUuid : p->zMUuid, p->zDate, p->zUser, n, z);
      }else{
        fossil_print("%35s  %.*s\n", "", n, z);
      }
    }else{
      if( iVers>=0 ){
        fossil_print("%.10s %s %5d: %.*s\n",
             fileVers ? p->zFUuid : p->zMUuid, p->zDate, i+1, n, z);
      }else{
        fossil_print("%21s %5d: %.*s\n",
             "", i+1, n, z);
      }
    }
  }
}







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#if INTERFACE
/*
** Flag parameters to the text_diff() routine used to control the formatting
** of the diff output.
*/
#define DIFF_CONTEXT_MASK ((u64)0x0000ffff) /* Lines of context. Default if 0 */
#define DIFF_WIDTH_MASK   ((u64)0x00ff0000) /* side-by-side column width */
#define DIFF_IGNORE_SOLWS ((u64)0x01000000) /* Ignore start-of-line whitespace */
#define DIFF_IGNORE_EOLWS ((u64)0x02000000) /* Ignore end-of-line whitespace */
#define DIFF_SIDEBYSIDE   ((u64)0x04000000) /* Generate a side-by-side diff */
#define DIFF_VERBOSE      ((u64)0x08000000) /* Missing shown as empty files */

#define DIFF_INLINE       ((u64)0x00000000) /* Inline (not side-by-side) diff */
#define DIFF_BRIEF        ((u64)0x10000000) /* Show filenames only */
#define DIFF_HTML         ((u64)0x20000000) /* Render for HTML */
#define DIFF_LINENO       ((u64)0x40000000) /* Show line numbers */

#define DIFF_NOOPT        (((u64)0x01)<<32) /* Suppress optimizations (debug) */
#define DIFF_INVERT       (((u64)0x02)<<32) /* Invert the diff (debug) */
#define DIFF_CONTEXT_EX   (((u64)0x04)<<32) /* Use context even if zero */
#define DIFF_NOTTOOBIG    (((u64)0x08)<<32) /* Only display if not too big */

/*
** These error messages are shared in multiple locations.  They are defined
................................................................................

#define DIFF_CANNOT_COMPUTE_SYMLINK \
    "cannot compute difference between symlink and regular file\n"

#define DIFF_TOO_MANY_CHANGES \
    "more than 10,000 changes\n"

#define DIFF_WHITESPACE_ONLY \
    "whitespace changes only\n"

/*
** Maximum length of a line in a text file, in bytes.  (2**13 = 8192 bytes)
*/
#define LENGTH_MASK_SZ  13
#define LENGTH_MASK     ((1<<LENGTH_MASK_SZ)-1)

#endif /* INTERFACE */
................................................................................
** of the line.  If any line is longer than LENGTH_MASK characters,
** the file is considered binary.
*/
typedef struct DLine DLine;
struct DLine {
  const char *z;        /* The text of the line */
  unsigned int h;       /* Hash of the line */
  unsigned short indent;  /* Indent of the line. Only !=0 with --ignore-space-at sol option */
  unsigned int iNext;   /* 1+(Index of next line with same the same hash) */

  /* an array of DLine elements serves two purposes.  The fields
  ** above are one per line of input text.  But each entry is also
  ** a bucket in a hash table, as follows: */
  unsigned int iHash;   /* 1+(first entry in the hash chain) */
};
................................................................................
**
** Return 0 if the file is binary or contains a line that is
** too long.
**
** Profiling show that in most cases this routine consumes the bulk of
** the CPU time on a diff.
*/
static DLine *break_into_lines(const char *z, int n, int *pnLine, u64 diffFlags){
  int nLine, i, j, k, s, indent, x;
  unsigned int h, h2;
  DLine *a;

  /* Count the number of lines.  Allocate space to hold
  ** the returned array.
  */
  for(i=j=0, nLine=1; i<n; i++, j++){
................................................................................
  if( n==0 ){
    *pnLine = 0;
    return a;
  }

  /* Fill in the array */
  for(i=0; i<nLine; i++){

    for(j=0; z[j] && z[j]!='\n'; j++){}
    k = j;
    s = 0;
    indent = 0;
    if( diffFlags & DIFF_IGNORE_EOLWS ){
      while( k>0 && fossil_isspace(z[k-1]) ){ k--; }
    }
    if( diffFlags & DIFF_IGNORE_SOLWS ){
      while( s<k && fossil_isspace(z[s]) ){
        if( z[s]=='\t' ){
          indent = ((indent+9)/8)*8;
        }else if( z[s]==' ' ){
          indent++;
        }
        s++;
      }
    }
    a[i].z = z+s;
    a[i].indent = s;
    for(h=0, x=s; x<k; x++){
      h = h ^ (h<<2) ^ z[x];
    }
    a[i].h = h = (h<<LENGTH_MASK_SZ) | (k-s);
    h2 = h % nLine;
    a[i].iNext = a[h2].iHash;
    a[h2].iHash = i+1;
    z += j+1;
  }

  /* Return results */
................................................................................
    if( pRe && re_dline_match(pRe, pLine, 1)==0 ){
      cPrefix = ' ';
    }else if( cPrefix=='+' ){
      blob_append(pOut, "<span class=\"diffadd\">", -1);
    }else if( cPrefix=='-' ){
      blob_append(pOut, "<span class=\"diffrm\">", -1);
    }
    if( pLine->indent ){
      blob_appendf(pOut, "%*s", pLine->indent, " ");
    }
    htmlize_to_blob(pOut, pLine->z, (pLine->h & LENGTH_MASK));
    if( cPrefix!=' ' ){
      blob_append(pOut, "</span>", -1);
    }
  }else{
    if( pLine->indent ){
      blob_appendf(pOut, "%*s", pLine->indent, " ");
    }
    blob_append(pOut, pLine->z, pLine->h & LENGTH_MASK);
  }
  blob_append(pOut, "\n", 1);
}

/*
** Add two line numbers to the beginning of an output line for a context
................................................................................
        needEndSpan = 0;
        if( p->iEnd2 ){
          p->iEnd = p->iEnd2;
          p->iEnd2 = 0;
        }
      }
    }
    if( pLine->indent && i==0 ){
      blob_appendf(pCol, "%*s", pLine->indent, " ");
    }
    if( c=='\t' && !p->escHtml ){
      blob_append(pCol, " ", 1);
      while( (k&7)!=7 && (p->escHtml || k<w) ){
        blob_append(pCol, " ", 1);
        k++;
      }
    }else if( c=='\r' || c=='\f' ){
................................................................................
  }
  if( needEndSpan ){
    blob_append(pCol, "</span>", 7);
  }
  if( col==SBS_TXTB ){
    sbsWriteNewlines(p);
  }else if( !p->escHtml ){
    sbsWriteSpace(p, w-k-pLine->indent, SBS_TXTA);
  }
}

/*
** Append a column to the final output blob.
*/
static void sbsWriteColumn(Blob *pOut, Blob *pCol, int col){
................................................................................
      s.iStart = s.iEnd = -1;
      sbsWriteText(&s, &A[a+j], SBS_TXTA);
      sbsWriteMarker(&s, "   ", "");
      sbsWriteLineno(&s, b+j, SBS_LNB);
      sbsWriteText(&s, &B[b+j], SBS_TXTB);
    }
  }

  if( s.escHtml && blob_size(s.apCols[SBS_LNA])>0 ){
    blob_append(pOut, "<table class=\"sbsdiffcols\"><tr>\n", -1);
    for(i=SBS_LNA; i<=SBS_TXTB; i++){
      sbsWriteColumn(pOut, s.apCols[i], i);
      blob_reset(s.apCols[i]);
    }
    blob_append(pOut, "</tr></table>\n", -1);
................................................................................
int *text_diff(
  Blob *pA_Blob,   /* FROM file */
  Blob *pB_Blob,   /* TO file */
  Blob *pOut,      /* Write diff here if not NULL */
  ReCompiled *pRe, /* Only output changes where this Regexp matches */
  u64 diffFlags    /* DIFF_* flags defined above */
){
  int ignoreWs; /* Ignore whitespace */
  DContext c;

  if( diffFlags & DIFF_INVERT ){
    Blob *pTemp = pA_Blob;
    pA_Blob = pB_Blob;
    pB_Blob = pTemp;
  }
  ignoreWs = (diffFlags & (DIFF_IGNORE_SOLWS|DIFF_IGNORE_EOLWS))!=0;
  blob_to_utf8_no_bom(pA_Blob, 0);
  blob_to_utf8_no_bom(pB_Blob, 0);

  /* Prepare the input files */
  memset(&c, 0, sizeof(c));
  c.aFrom = break_into_lines(blob_str(pA_Blob), blob_size(pA_Blob),
                             &c.nFrom, diffFlags);
  c.aTo = break_into_lines(blob_str(pB_Blob), blob_size(pB_Blob),
                           &c.nTo, diffFlags);
  if( c.aFrom==0 || c.aTo==0 ){
    fossil_free(c.aFrom);
    fossil_free(c.aTo);
    if( pOut ){
      diff_errmsg(pOut, DIFF_CANNOT_COMPUTE_BINARY, diffFlags);
    }
    return 0;
  }

  /* Compute the difference */
  diff_all(&c);
  if( ignoreWs && c.nEdit==6 && c.aEdit[1]==0 && c.aEdit[2]==0 ){
    fossil_free(c.aFrom);
    fossil_free(c.aTo);
    fossil_free(c.aEdit);
    if( pOut ) diff_errmsg(pOut, DIFF_WHITESPACE_ONLY, diffFlags);
    return 0;
  }
  if( (diffFlags & DIFF_NOTTOOBIG)!=0 ){
    int i, m, n;
    int *a = c.aEdit;
    int mx = c.nEdit;
    for(i=m=n=0; i<mx; i+=3){ m += a[i]; n += a[i+1]+a[i+2]; }
    if( n>10000 ){
      fossil_free(c.aFrom);
      fossil_free(c.aTo);
      fossil_free(c.aEdit);
      if( pOut ) diff_errmsg(pOut, DIFF_TOO_MANY_CHANGES, diffFlags);
      return 0;
    }
  }
  if( (diffFlags & DIFF_NOOPT)==0 ){
    diff_optimize(&c);
  }

................................................................................
** Process diff-related command-line options and return an appropriate
** "diffFlags" integer.
**
**   --brief                Show filenames only    DIFF_BRIEF
**   --context|-c N         N lines of context.    DIFF_CONTEXT_MASK
**   --html                 Format for HTML        DIFF_HTML
**   --invert               Invert the diff        DIFF_INVERT
**   --ignore-space-at-eol  Ignore eol-whitespaces DIFF_IGNORE_EOLWS
**   --ignore-space-at-sol  Ignore sol-whitespaces DIFF_IGNORE_SOLWS
**   --linenum|-n           Show line numbers      DIFF_LINENO
**   --noopt                Disable optimization   DIFF_NOOPT
**   --side-by-side|-y      Side-by-side diff.     DIFF_SIDEBYSIDE
**   --unified              Unified diff.          ~DIFF_SIDEBYSIDE
**   -w                     Ignore all whitespaces DIFF_IGNORE_EOLWS|DIFF_IGNORE_SOLWS
**   --width|-W N           N character lines.     DIFF_WIDTH_MASK
*/
u64 diff_options(void){
  u64 diffFlags = 0;
  const char *z;
  int f;
  if( find_option("side-by-side","y",0)!=0 ) diffFlags |= DIFF_SIDEBYSIDE;
................................................................................
  }
  if( (z = find_option("width","W",1))!=0 && (f = atoi(z))>0 ){
    f *= DIFF_CONTEXT_MASK+1;
    if( f > DIFF_WIDTH_MASK ) f = DIFF_CONTEXT_MASK;
    diffFlags |= f;
  }
  if( find_option("html",0,0)!=0 ) diffFlags |= DIFF_HTML;
  if( find_option("ignore-space-at-sol",0,0)!=0 ) diffFlags |= DIFF_IGNORE_SOLWS;
  if( find_option("ignore-space-at-eol",0,0)!=0 ) diffFlags |= DIFF_IGNORE_EOLWS;
  if( find_option("w",0,0)!=0 ) diffFlags |= (DIFF_IGNORE_EOLWS|DIFF_IGNORE_SOLWS);
  if( find_option("linenum","n",0)!=0 ) diffFlags |= DIFF_LINENO;
  if( find_option("noopt",0,0)!=0 ) diffFlags |= DIFF_NOOPT;
  if( find_option("invert",0,0)!=0 ) diffFlags |= DIFF_INVERT;
  if( find_option("brief",0,0)!=0 ) diffFlags |= DIFF_BRIEF;
  return diffFlags;
}

................................................................................
** of the following structure.
*/
typedef struct Annotator Annotator;
struct Annotator {
  DContext c;       /* The diff-engine context */
  struct AnnLine {  /* Lines of the original files... */
    const char *z;       /* The text of the line */
    short int n;         /* Number of bytes. Whether this omits sol/eol spacing
                            depends on the diffFlags) */
    unsigned short indent; /* Indenting (number of initial spaces, only used
                              if sol-spacing is ignored in the diffFlags) */
    short int iVers;     /* Level at which tag was set */
  } *aOrig;
  int nOrig;        /* Number of elements in aOrig[] */
  int nVers;        /* Number of versions analyzed */
  int bLimit;       /* True if the iLimit was reached */
  struct AnnVers {
    const char *zFUuid;   /* File being analyzed */
................................................................................
};

/*
** Initialize the annotation process by specifying the file that is
** to be annotated.  The annotator takes control of the input Blob and
** will release it when it is finished with it.
*/
static int annotation_start(Annotator *p, Blob *pInput, u64 diffFlags){
  int i;

  memset(p, 0, sizeof(*p));
  p->c.aTo = break_into_lines(blob_str(pInput), blob_size(pInput),&p->c.nTo,
                              diffFlags);
  if( p->c.aTo==0 ){
    return 1;
  }
  p->aOrig = fossil_malloc( sizeof(p->aOrig[0])*p->c.nTo );
  for(i=0; i<p->c.nTo; i++){
    p->aOrig[i].z = p->c.aTo[i].z;
    p->aOrig[i].n = p->c.aTo[i].h & LENGTH_MASK;
    p->aOrig[i].indent = p->c.aTo[i].indent;
    p->aOrig[i].iVers = -1;
  }
  p->nOrig = p->c.nTo;
  return 0;
}

/*
** The input pParent is the next most recent ancestor of the file
** being annotated.  Do another step of the annotation.  Return true
** if additional annotation is required.  zPName is the tag to insert
** on each line of the file being annotated that was contributed by
** pParent.  Memory to hold zPName is leaked.
*/
static int annotation_step(Annotator *p, Blob *pParent, int iVers, u64 diffFlags){
  int i, j;
  int lnTo;

  /* Prepare the parent file to be diffed */
  p->c.aFrom = break_into_lines(blob_str(pParent), blob_size(pParent),
                                &p->c.nFrom, diffFlags);
  if( p->c.aFrom==0 ){
    return 1;
  }

  /* Compute the differences going from pParent to the file being
  ** annotated. */
  diff_all(&p->c);
................................................................................
** it was checked in (mlink.mid).
*/
static void annotate_file(
  Annotator *p,        /* The annotator */
  int fnid,            /* The name of the file to be annotated */
  int mid,             /* Use the version of the file in this check-in */
  int iLimit,          /* Limit the number of levels if greater than zero */
  int annFlags,        /* Flags to alter the annotation */
  u64 diffFlags        /* Flags to alter the whitespace handling */
){
  Blob toAnnotate;     /* Text of the final (mid) version of the file */
  Blob step;           /* Text of previous revision */
  int rid;             /* Artifact ID of the file being annotated */
  Stmt q;              /* Query returning all ancestor versions */
  Stmt ins;            /* Inserts into the temporary VSEEN table */
  int cnt = 0;         /* Number of versions examined */
................................................................................
  if( rid==0 ){
    fossil_fatal("file #%d is unchanged in manifest #%d", fnid, mid);
  }
  if( !content_get(rid, &toAnnotate) ){
    fossil_fatal("unable to retrieve content of artifact #%d", rid);
  }
  if( iLimit<=0 ) iLimit = 1000000000;
  annotation_start(p, &toAnnotate, diffFlags);
  db_begin_transaction();
  db_multi_exec(
     "CREATE TEMP TABLE IF NOT EXISTS vseen(rid INTEGER PRIMARY KEY);"
     "DELETE FROM vseen;"
  );

  db_prepare(&ins, "INSERT OR IGNORE INTO vseen(rid) VALUES(:rid)");
................................................................................
    p->aVers = fossil_realloc(p->aVers, (p->nVers+1)*sizeof(p->aVers[0]));
    p->aVers[p->nVers].zFUuid = fossil_strdup(db_column_text(&q, 0));
    p->aVers[p->nVers].zMUuid = fossil_strdup(db_column_text(&q, 1));
    p->aVers[p->nVers].zDate = fossil_strdup(db_column_text(&q, 2));
    p->aVers[p->nVers].zUser = fossil_strdup(db_column_text(&q, 3));
    if( p->nVers ){
      content_get(rid, &step);
      annotation_step(p, &step, p->nVers-1, diffFlags);
      blob_reset(&step);
    }
    p->nVers++;
    db_bind_int(&ins, ":rid", rid);
    db_step(&ins);
    db_reset(&ins);
    db_reset(&q);
................................................................................
  c |= (x1*(n-i) + x2*i)/n & 0xff;
  return c;
}

/*
** WEBPAGE: annotate
** WEBPAGE: blame
** WEBPAGE: praise
**
** Query parameters:
**
**    checkin=ID          The manifest ID at which to start the annotation
**    filename=FILENAME   The filename.
**    filevers            Show file versions rather than check-in versions
**    log=BOOLEAN         Show a log of versions analyzed
................................................................................
**    limit=N             Limit the search depth to N ancestors
*/
void annotation_page(void){
  int mid;
  int fnid;
  int i;
  int iLimit;            /* Depth limit */
  int annFlags = ANN_FILE_ANCEST;
  int showLog = 0;       /* True to display the log */
  int ignoreWs = 0;      /* Ignore whitespace */
  u64 diffFlags = 0;     /* diff flags for ignore whitespace */
  const char *zFilename; /* Name of file to annotate */
  const char *zCI;       /* The check-in containing zFilename */
  Annotator ann;
  HQuery url;
  struct AnnVers *p;
  unsigned clr1, clr2, clr;
  int bBlame = g.zPath[0]!='a';/* True for BLAME output.  False for ANNOTATE. */

  /* Gather query parameters */
  showLog = atoi(PD("log","1"));
  login_check_credentials();
  if( !g.perm.Read ){ login_needed(); return; }
  if( exclude_spiders("annotate") ) return;
  mid = name_to_typed_rid(PD("checkin","0"),"ci");
  zFilename = P("filename");
  fnid = db_int(0, "SELECT fnid FROM filename WHERE name=%Q", zFilename);
  if( mid==0 || fnid==0 ){ fossil_redirect_home(); }
  iLimit = atoi(PD("limit","20"));
  if( P("filevers") ) annFlags |= ANN_FILE_VERS;
  ignoreWs = P("w")!=0;
  if( ignoreWs ) diffFlags |= (DIFF_IGNORE_EOLWS|DIFF_IGNORE_SOLWS);
  if( !db_exists("SELECT 1 FROM mlink WHERE mid=%d AND fnid=%d",mid,fnid) ){
    fossil_redirect_home();
  }

  /* compute the annotation */
  compute_direct_ancestors(mid, 10000000);
  annotate_file(&ann, fnid, mid, iLimit, annFlags, diffFlags);
  zCI = ann.aVers[0].zMUuid;

  /* generate the web page */
  style_header("Annotation For %h", zFilename);
  if( bBlame ){
    url_initialize(&url, "blame");
  }else{
    url_initialize(&url, "annotate");
  }
  url_add_parameter(&url, "checkin", P("checkin"));
  url_add_parameter(&url, "filename", zFilename);
  if( iLimit!=20 ){
    url_add_parameter(&url, "limit", sqlite3_mprintf("%d", iLimit));
  }
  url_add_parameter(&url, "log", showLog ? "1" : "0");
  if( ignoreWs ){
    url_add_parameter(&url, "w", "");
    style_submenu_element("Show Whitespace Changes", "Show Whitespace Changes",
        "%s", url_render(&url, "w", 0, 0, 0));
  }else{
    style_submenu_element("Ignore Whitespace", "Ignore Whitespace",
        "%s", url_render(&url, "w", "", 0, 0));
  }
  if( showLog ){
    style_submenu_element("Hide Log", "Hide Log",
       "%s", url_render(&url, "log", "0", 0, 0));
  }else{
    style_submenu_element("Show Log", "Show Log",
       "%s", url_render(&url, "log", "1", 0, 0));
  }
................................................................................
  }else{
    clr1 = 0xffb5b5;  /* Recent changes: red (hot) */
    clr2 = 0xb5e0ff;  /* Older changes: blue (cold) */
  }
  for(p=ann.aVers, i=0; i<ann.nVers; i++, p++){
    clr = gradient_color(clr1, clr2, ann.nVers-1, i);
    ann.aVers[i].zBgColor = mprintf("#%06x", clr);
  }

  if( showLog ){
    char *zLink = href("%R/finfo?name=%t&ci=%S",zFilename,zCI);
    @ <h2>Ancestors of %z(zLink)%h(zFilename)</a> analyzed:</h2>
    @ <ol>
    for(p=ann.aVers, i=0; i<ann.nVers; i++, p++){
      @ <li><span style='background-color:%s(p->zBgColor);'>%s(p->zDate)
................................................................................
      }
#endif
    }
    @ </ol>
    @ <hr>
  }
  if( !ann.bLimit ){
    @ <h2>Origin for each line in
    @ %z(href("%R/finfo?name=%h&ci=%S", zFilename, zCI))%h(zFilename)</a>
    @ from check-in %z(href("%R/info/%S",zCI))%S(zCI)</a>:</h2>
    iLimit = ann.nVers+10;
  }else{
    @ <h2>Lines added by the %d(iLimit) most recent ancestors of
    @ %z(href("%R/finfo?name=%h&ci=%S", zFilename, zCI))%h(zFilename)</a>
    @ from check-in %z(href("%R/info/%S",zCI))%S(zCI)</a>:</h2>
  }
  @ <pre>
  for(i=0; i<ann.nOrig; i++){
    int iVers = ann.aOrig[i].iVers;
    char *z = (char*)ann.aOrig[i].z;
    int n = ann.aOrig[i].n;
    int indent = ann.aOrig[i].indent+1;
    char zPrefix[300];
    z[n] = 0;
    if( iLimit>ann.nVers && iVers<0 ) iVers = ann.nVers-1;

    if( bBlame ){
      if( iVers>=0 ){
        struct AnnVers *p = ann.aVers+iVers;
................................................................................
        char *zLink = xhref("target='infowindow'", "%R/info/%S", p->zMUuid);
        sqlite3_snprintf(sizeof(zPrefix), zPrefix,
             "<span style='background-color:%s'>"
             "%s%.10s</a> %s</span> %13.13s:",
             p->zBgColor, zLink, p->zMUuid, p->zDate, p->zUser);
        fossil_free(zLink);
      }else{
        sqlite3_snprintf(sizeof(zPrefix), zPrefix, "%36s%*s", indent, " ");
      }
    }else{
      if( iVers>=0 ){
        struct AnnVers *p = ann.aVers+iVers;
        char *zLink = xhref("target='infowindow'", "%R/info/%S", p->zMUuid);
        sqlite3_snprintf(sizeof(zPrefix), zPrefix,
             "<span style='background-color:%s'>"
             "%s%.10s</a> %s</span> %4d:%*s",
             p->zBgColor, zLink, p->zMUuid, p->zDate, i+1, indent, " ");
        fossil_free(zLink);
      }else{
        sqlite3_snprintf(sizeof(zPrefix), zPrefix, "%22s%4d:%*s", "", i+1, indent, " ");
      }
    }
    @ %s(zPrefix)%h(z)

  }
  @ </pre>
  style_footer();
}

/*
** COMMAND: annotate
** COMMAND: blame
** COMMAND: praise
**
** %fossil (annotate|blame|praise) ?OPTIONS? FILENAME
**
** Output the text of a file with markings to show when each line of
** the file was last modified.  The "annotate" command shows line numbers
** and omits the username.  The "blame" and "praise" commands show the user
** who made each checkin and omits the line number.
**
** Options:
**   --filevers             Show file version numbers rather than check-in versions
**   -l|--log               List all versions analyzed
**   -n|--limit N           Only look backwards in time by N versions
**   --ignore-space-at-eol  Ignore eol-whitespaces
**   --ignore-space-at-sol  Ignore sol-whitespaces
**   -w                     Ignore all whitespaces
**
** See also: info, finfo, timeline
*/
void annotate_cmd(void){
  int fnid;         /* Filename ID */
  int fid;          /* File instance ID */
  int mid;          /* Manifest where file was checked in */
................................................................................
  Blob treename;    /* FILENAME translated to canonical form */
  char *zFilename;  /* Canonical filename */
  Annotator ann;    /* The annotation of the file */
  int i;            /* Loop counter */
  const char *zLimit; /* The value to the -n|--limit option */
  int iLimit;       /* How far back in time to look */
  int showLog;      /* True to show the log */
  u64 diffFlags = 0;/* Flags to control whitespace handling */
  int fileVers;     /* Show file version instead of check-in versions */
  int annFlags = 0; /* Flags to control annotation properties */
  int bBlame = 0;   /* True for BLAME output.  False for ANNOTATE. */

  bBlame = g.argv[1][0]!='a';
  zLimit = find_option("limit","n",1);
  if( zLimit==0 || zLimit[0]==0 ) zLimit = "-1";
  iLimit = atoi(zLimit);
  showLog = find_option("log","l",0)!=0;
  if( find_option("ignore-space-at-sol",0,0)!=0 ) diffFlags |= DIFF_IGNORE_SOLWS;
  if( find_option("ignore-space-at-eol",0,0)!=0 ) diffFlags |= DIFF_IGNORE_EOLWS;
  if( find_option("w",0,0)!=0 ) diffFlags |= (DIFF_IGNORE_EOLWS|DIFF_IGNORE_SOLWS);
  fileVers = find_option("filevers",0,0)!=0;
  db_must_be_within_tree();
  if( g.argc<3 ) {
    usage("FILENAME");
  }
  file_tree_name(g.argv[2], &treename, 1);
  zFilename = blob_str(&treename);
................................................................................
          " WHERE mlink.fid=%d AND mlink.fnid=%d AND mlink.mid=ancestor.rid"
          " ORDER BY ancestor.generation ASC LIMIT 1",
          fid, fnid);
  if( mid==0 ){
    fossil_fatal("unable to find manifest");
  }
  annFlags |= ANN_FILE_ANCEST;
  annotate_file(&ann, fnid, mid, iLimit, annFlags, diffFlags);
  if( showLog ){
    struct AnnVers *p;
    for(p=ann.aVers, i=0; i<ann.nVers; i++, p++){
      fossil_print("version %3d: %s %.10s file %.10s\n",
                   i+1, p->zDate, p->zMUuid, p->zFUuid);
    }
    fossil_print("---------------------------------------------------\n");
  }
  for(i=0; i<ann.nOrig; i++){
    int iVers = ann.aOrig[i].iVers;
    char *z = (char*)ann.aOrig[i].z;
    int indent = ann.aOrig[i].indent + 1;
    int n = ann.aOrig[i].n;
    struct AnnVers *p;
    if( iLimit>ann.nVers && iVers<0 ) iVers = ann.nVers-1;
    p = ann.aVers + iVers;
    if( bBlame ){
      if( iVers>=0 ){
        fossil_print("%.10s %s %13.13s:%*s%.*s\n",
             fileVers ? p->zFUuid : p->zMUuid, p->zDate, p->zUser, indent, " ", n, z);
      }else{
        fossil_print("%35s %*s%.*s\n", "", indent, " ", n, z);
      }
    }else{
      if( iVers>=0 ){
        fossil_print("%.10s %s %5d:%*s%.*s\n",
             fileVers ? p->zFUuid : p->zMUuid, p->zDate, i+1, indent, " ", n, z);
      }else{
        fossil_print("%21s %5d:%*s%.*s\n",
             "", i+1, indent, " ", n, z);
      }
    }
  }
}

Changes to src/diffcmd.c.

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void diff_print_filenames(const char *zLeft, const char *zRight, u64 diffFlags){
  char *z = 0;
  if( diffFlags & DIFF_BRIEF ){
    /* no-op */
  }else if( diffFlags & DIFF_SIDEBYSIDE ){
    int w = diff_width(diffFlags);
    int n1 = strlen(zLeft);

    int x;

    if( n1>w*2 ) n1 = w*2;
    x = w*2+17 - (n1+2);
    z = mprintf("%.*c %.*s %.*c\n",
                x/2, '=', n1, zLeft, (x+1)/2, '=');








  }else{
    z = mprintf("--- %s\n+++ %s\n", zLeft, zRight);
  }
  fossil_print("%s", z);
  fossil_free(z);
}

................................................................................
  }
  return db_get(zName, zDefault);
}

/* A Tcl/Tk script used to render diff output.
*/
static const char zDiffScript[] =

@ package require Tk
@
@ array set CFG {
@   TITLE      {Fossil Diff}
@   LN_COL_BG  #dddddd
@   LN_COL_FG  #444444
@   TXT_COL_BG #ffffff
................................................................................
@   RM_BG      #ffc0c0
@   HR_FG      #888888
@   HR_PAD_TOP 4
@   HR_PAD_BTM 8
@   FN_BG      #444444
@   FN_FG      #ffffff
@   FN_PAD     5

@   PADX       5
@   WIDTH      80
@   HEIGHT     45
@   LB_HEIGHT  25
@ }
@
@ if {![namespace exists ttk]} {
................................................................................
@   return [list .lnA .txtA .mkr .lnB .txtB]
@ }
@
@ proc colType {c} {
@   regexp {[a-z]+} $c type
@   return $type
@ }
@








@ proc readDiffs {fossilcmd} {


@   set in [open $fossilcmd r]
@   fconfigure $in -encoding utf-8





@   set nDiffs 0
@   array set widths {txt 0 ln 0 mkr 0}
@   while {[gets $in line] != -1} {


@     if {![regexp {^=+\s+(.*?)\s+=+$} $line all fn]} {


@       continue
@     }


@     if {[string compare -length 6 [gets $in] "<table"]} {

@       continue
@     }
@     incr nDiffs
@     set idx [expr {$nDiffs > 1 ? [.txtA index end] : "1.0"}]
@     .wfiles.lb insert end $fn
@
@     foreach c [cols] {
@       while {[gets $in] ne "<pre>"} continue
@
@       if {$nDiffs > 1} {
@         $c insert end \n -
@       }
@       if {[colType $c] eq "txt"} {
@         $c insert end $fn\n fn

@       } else {
@         $c insert end \n fn
@       }
@       $c insert end \n -
@


@       set type [colType $c]
@       set str {}
@       while {[set line [gets $in]] ne "</pre>"} {
@         set len [string length [dehtml $line]]
@         if {$len > $widths($type)} {
@           set widths($type) $len
@         }
@         append str $line\n
@       }
@
................................................................................
@         if {$class ne ""} {
@           $c insert end [dehtml $pre] - [dehtml $mid] [list $class -]
@         } else {
@           $c insert end [dehtml $pre] -
@         }
@       }
@     }




@   }
@   close $in
@
@   foreach c [cols] {
@     set type [colType $c]
@     if {$type ne "txt"} {
@       $c config -width $widths($type)
@     }
@     $c config -state disabled
................................................................................
@ wm title . $CFG(TITLE)
@ wm iconname . $CFG(TITLE)
@ bind . <q> exit
@ bind . <Destroy> {after 0 exit}
@ bind . <Tab> {cycleDiffs; break}
@ bind . <<PrevWindow>> {cycleDiffs 1; break}
@ bind . <Return> {
@   event generate .files <1>
@   event generate .files <ButtonRelease-1>
@   break
@ }
@ foreach {key axis args} {
@   Up    y {scroll -5 units}
@   Down  y {scroll 5 units}
@   Left  x {scroll -5 units}
@   Right x {scroll 5 units}
................................................................................
@   Home  y {moveto 0}
@   End   y {moveto 1}
@ } {
@   bind . <$key> "scroll-$axis $args; break"
@   bind . <Shift-$key> continue
@ }
@

@ ::ttk::menubutton .files -text "Files"
@ toplevel .wfiles
@ wm withdraw .wfiles
@ update idletasks
@ wm transient .wfiles .
@ wm overrideredirect .wfiles 1
@ listbox .wfiles.lb -width 0 -height $CFG(LB_HEIGHT) -activestyle none \
@   -yscroll {.wfiles.sb set}
@ ::ttk::scrollbar .wfiles.sb -command {.wfiles.lb yview}
@ grid .wfiles.lb .wfiles.sb -sticky ns
@ bind .files <1> {
@   set x [winfo rootx %W]
@   set y [expr {[winfo rooty %W]+[winfo height %W]}]
@   wm geometry .wfiles +$x+$y
@   wm deiconify .wfiles
@   focus .wfiles.lb
@ }
@ bind .wfiles <FocusOut> {wm withdraw .wfiles}
................................................................................
@   catch {$txt config -tabstyle wordprocessor} ;# Required for Tk>=8.5
@   foreach tag {add rm chng} {
@     $txt tag config $tag -background $CFG([string toupper $tag]_BG)
@     $txt tag lower $tag
@   }
@   $txt tag config fn -background $CFG(FN_BG) -foreground $CFG(FN_FG) \
@     -justify center

@ }
@ text .mkr
@
@ foreach c [cols] {
@   set keyPrefix [string toupper [colType $c]]_COL_
@   if {[tk windowingsystem] eq "win32"} {$c config -font {courier 9}}
@   $c config -bg $CFG(${keyPrefix}BG) -fg $CFG(${keyPrefix}FG) -borderwidth 0 \
................................................................................
@
@ if {[readDiffs $fossilcmd] == 0} {
@   tk_messageBox -type ok -title $CFG(TITLE) -message "No changes"
@   exit
@ }
@ update idletasks
@


















@ grid rowconfigure . 1 -weight 1
@ grid columnconfigure . 1 -weight 1
@ grid columnconfigure . 4 -weight 1
@ grid .files -row 0 -columnspan 6
@ eval grid [cols] -row 1 -sticky nsew
@ grid .sby -row 1 -column 5 -sticky ns
@ grid .sbxA -row 2 -columnspan 2 -sticky ew
@ grid .spacer -row 2 -column 2
@ grid .sbxB -row 2 -column 3 -columnspan 2 -sticky ew
@
@ .spacer config -height [winfo height .sbxA]
@ wm deiconify .


;

/*
** Show diff output in a Tcl/Tk window, in response to the --tk option
** to the diff command.
**
** If fossil has direct access to a Tcl interpreter (either loaded
................................................................................
** when using an external diff program.
**
** The "--binary" option causes files matching the glob PATTERN to be treated
** as binary when considering if they should be used with external diff program.
** This option overrides the "binary-glob" setting.
**
** Options:
**   --binary PATTERN    Treat files that match the glob PATTERN as binary
**   --branch BRANCH     Show diff of all changes on BRANCH
**   --brief             Show filenames only
**   --context|-c N      Use N lines of context
**   --diff-binary BOOL  Include binary files when using external commands
**   --from|-r VERSION   select VERSION as source for the diff


**   --internal|-i       use internal diff logic
**   --side-by-side|-y   side-by-side diff
**   --tk                Launch a Tcl/Tk GUI for display
**   --to VERSION        select VERSION as target for the diff
**   --unified           unified diff
**   -v|--verbose        output complete text of added or deleted files


**   -W|--width          Width of lines in side-by-side diff
*/
void diff_cmd(void){
  int isGDiff;               /* True for gdiff.  False for normal diff */
  int isInternDiff;          /* True for internal diff */
  int verboseFlag;           /* True if -v or --verbose flag is used */
  const char *zFrom;         /* Source version number */
  const char *zTo;           /* Target version number */
................................................................................
  zBranch = find_option("branch", 0, 1);
  diffFlags = diff_options();
  verboseFlag = find_option("verbose","v",0)!=0;
  if( !verboseFlag ){
    verboseFlag = find_option("new-file","N",0)!=0; /* deprecated */
  }
  if( verboseFlag ) diffFlags |= DIFF_VERBOSE;

  if( zBranch ){
    if( zTo || zFrom ){
      fossil_fatal("cannot use --from or --to with --branch");
    }
    zTo = zBranch;
    zFrom = mprintf("root:%s", zBranch);
  }







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void diff_print_filenames(const char *zLeft, const char *zRight, u64 diffFlags){
  char *z = 0;
  if( diffFlags & DIFF_BRIEF ){
    /* no-op */
  }else if( diffFlags & DIFF_SIDEBYSIDE ){
    int w = diff_width(diffFlags);
    int n1 = strlen(zLeft);
    int n2 = strlen(zRight);
    int x;
    if( n1==n2 && fossil_strcmp(zLeft,zRight)==0 ){
      if( n1>w*2 ) n1 = w*2;
      x = w*2+17 - (n1+2);
      z = mprintf("%.*c %.*s %.*c\n",
                 x/2, '=', n1, zLeft, (x+1)/2, '=');
    }else{
      if( w<20 ) w = 20;
      if( n1>w-10 ) n1 = w - 10;
      if( n2>w-10 ) n2 = w - 10;
      z = mprintf("%.*c %.*s %.*c versus %.*c %.*s %.*c\n",
                  (w-n1+10)/2, '=', n1, zLeft, (w-n1+1)/2, '=',
                  (w-n2)/2, '=', n2, zRight, (w-n2+1)/2, '=');
    }
  }else{
    z = mprintf("--- %s\n+++ %s\n", zLeft, zRight);
  }
  fossil_print("%s", z);
  fossil_free(z);
}

................................................................................
  }
  return db_get(zName, zDefault);
}

/* A Tcl/Tk script used to render diff output.
*/
static const char zDiffScript[] =
@ set prog {
@ package require Tk
@
@ array set CFG {
@   TITLE      {Fossil Diff}
@   LN_COL_BG  #dddddd
@   LN_COL_FG  #444444
@   TXT_COL_BG #ffffff
................................................................................
@   RM_BG      #ffc0c0
@   HR_FG      #888888
@   HR_PAD_TOP 4
@   HR_PAD_BTM 8
@   FN_BG      #444444
@   FN_FG      #ffffff
@   FN_PAD     5
@   ERR_FG     #ee0000
@   PADX       5
@   WIDTH      80
@   HEIGHT     45
@   LB_HEIGHT  25
@ }
@
@ if {![namespace exists ttk]} {
................................................................................
@   return [list .lnA .txtA .mkr .lnB .txtB]
@ }
@
@ proc colType {c} {
@   regexp {[a-z]+} $c type
@   return $type
@ }
@
@ proc getLine {difftxt N iivar} {
@   upvar $iivar ii
@   if {$ii>=$N} {return -1}
@   set x [lindex $difftxt $ii]
@   incr ii
@   return $x
@ }
@
@ proc readDiffs {fossilcmd} {
@   global difftxt
@   if {![info exists difftxt]} {
@     set in [open $fossilcmd r]
@     fconfigure $in -encoding utf-8
@     set difftxt [split [read $in] \n]
@     close $in
@   }
@   set N [llength $difftxt]
@   set ii 0
@   set nDiffs 0
@   array set widths {txt 0 ln 0 mkr 0}

@   while {[set line [getLine $difftxt $N ii]] != -1} {
@     set fn2 {}
@     if {![regexp {^=+ (.*?) =+ versus =+ (.*?) =+$} $line all fn fn2]
@      && ![regexp {^=+ (.*?) =+$} $line all fn]
@     } {
@       continue
@     }
@     set errMsg ""
@     set line [getLine $difftxt $N ii]
@     if {[string compare -length 6 $line "<table"]
@      && ![regexp {<p[^>]*>(.+)} $line - errMsg]} {
@       continue
@     }
@     incr nDiffs
@     set idx [expr {$nDiffs > 1 ? [.txtA index end] : "1.0"}]
@     .wfiles.lb insert end $fn
@
@     foreach c [cols] {


@       if {$nDiffs > 1} {
@         $c insert end \n -
@       }
@       if {[colType $c] eq "txt"} {
@         $c insert end $fn\n fn
@         if {$fn2!=""} {set fn $fn2}
@       } else {
@         $c insert end \n fn
@       }
@       $c insert end \n -
@
@       if {$errMsg ne ""} continue
@       while {[getLine $difftxt $N ii] ne "<pre>"} continue
@       set type [colType $c]
@       set str {}
@       while {[set line [getLine $difftxt $N ii]] ne "</pre>"} {
@         set len [string length [dehtml $line]]
@         if {$len > $widths($type)} {
@           set widths($type) $len
@         }
@         append str $line\n
@       }
@
................................................................................
@         if {$class ne ""} {
@           $c insert end [dehtml $pre] - [dehtml $mid] [list $class -]
@         } else {
@           $c insert end [dehtml $pre] -
@         }
@       }
@     }
@
@     if {$errMsg ne ""} {
@       foreach c {.txtA .txtB} {$c insert end [string trim $errMsg] err}
@       foreach c [cols] {$c insert end \n -}
@     }
@   }
@
@   foreach c [cols] {
@     set type [colType $c]
@     if {$type ne "txt"} {
@       $c config -width $widths($type)
@     }
@     $c config -state disabled
................................................................................
@ wm title . $CFG(TITLE)
@ wm iconname . $CFG(TITLE)
@ bind . <q> exit
@ bind . <Destroy> {after 0 exit}
@ bind . <Tab> {cycleDiffs; break}
@ bind . <<PrevWindow>> {cycleDiffs 1; break}
@ bind . <Return> {
@   event generate .bb.files <1>
@   event generate .bb.files <ButtonRelease-1>
@   break
@ }
@ foreach {key axis args} {
@   Up    y {scroll -5 units}
@   Down  y {scroll 5 units}
@   Left  x {scroll -5 units}
@   Right x {scroll 5 units}
................................................................................
@   Home  y {moveto 0}
@   End   y {moveto 1}
@ } {
@   bind . <$key> "scroll-$axis $args; break"
@   bind . <Shift-$key> continue
@ }
@
@ frame .bb
@ ::ttk::menubutton .bb.files -text "Files"
@ toplevel .wfiles
@ wm withdraw .wfiles
@ update idletasks
@ wm transient .wfiles .
@ wm overrideredirect .wfiles 1
@ listbox .wfiles.lb -width 0 -height $CFG(LB_HEIGHT) -activestyle none \
@   -yscroll {.wfiles.sb set}
@ ::ttk::scrollbar .wfiles.sb -command {.wfiles.lb yview}
@ grid .wfiles.lb .wfiles.sb -sticky ns
@ bind .bb.files <1> {
@   set x [winfo rootx %W]
@   set y [expr {[winfo rooty %W]+[winfo height %W]}]
@   wm geometry .wfiles +$x+$y
@   wm deiconify .wfiles
@   focus .wfiles.lb
@ }
@ bind .wfiles <FocusOut> {wm withdraw .wfiles}
................................................................................
@   catch {$txt config -tabstyle wordprocessor} ;# Required for Tk>=8.5
@   foreach tag {add rm chng} {
@     $txt tag config $tag -background $CFG([string toupper $tag]_BG)
@     $txt tag lower $tag
@   }
@   $txt tag config fn -background $CFG(FN_BG) -foreground $CFG(FN_FG) \
@     -justify center
@   $txt tag config err -foreground $CFG(ERR_FG)
@ }
@ text .mkr
@
@ foreach c [cols] {
@   set keyPrefix [string toupper [colType $c]]_COL_
@   if {[tk windowingsystem] eq "win32"} {$c config -font {courier 9}}
@   $c config -bg $CFG(${keyPrefix}BG) -fg $CFG(${keyPrefix}FG) -borderwidth 0 \
................................................................................
@
@ if {[readDiffs $fossilcmd] == 0} {
@   tk_messageBox -type ok -title $CFG(TITLE) -message "No changes"
@   exit
@ }
@ update idletasks
@
@ proc saveDiff {} {
@   set fn [tk_getSaveFile]
@   set out [open $fn wb]
@   puts $out "#!/usr/bin/tclsh\n#\n# Run this script using 'tclsh' or 'wish'"
@   puts $out "# to see the graphical diff.\n#"
@   puts $out "set fossilcmd {}"
@   puts $out "set prog [list $::prog]"
@   puts $out "set difftxt \173"
@   foreach e $::difftxt {puts $out [list $e]}
@   puts $out "\175"
@   puts $out "eval \$prog"
@   close $out
@ }
@ ::ttk::button .bb.quit -text {Quit} -command exit
@ ::ttk::button .bb.save -text {Save As...} -command saveDiff
@ pack .bb.quit -side left
@ if {$fossilcmd!=""} {pack .bb.save -side left}
@ pack .bb.files -side left
@ grid rowconfigure . 1 -weight 1
@ grid columnconfigure . 1 -weight 1
@ grid columnconfigure . 4 -weight 1
@ grid .bb -row 0 -columnspan 6
@ eval grid [cols] -row 1 -sticky nsew
@ grid .sby -row 1 -column 5 -sticky ns
@ grid .sbxA -row 2 -columnspan 2 -sticky ew
@ grid .spacer -row 2 -column 2
@ grid .sbxB -row 2 -column 3 -columnspan 2 -sticky ew
@
@ .spacer config -height [winfo height .sbxA]
@ wm deiconify .
@ }
@ eval $prog
;

/*
** Show diff output in a Tcl/Tk window, in response to the --tk option
** to the diff command.
**
** If fossil has direct access to a Tcl interpreter (either loaded
................................................................................
** when using an external diff program.
**
** The "--binary" option causes files matching the glob PATTERN to be treated
** as binary when considering if they should be used with external diff program.
** This option overrides the "binary-glob" setting.
**
** Options:
**   --binary PATTERN       Treat files that match the glob PATTERN as binary
**   --branch BRANCH        Show diff of all changes on BRANCH
**   --brief                Show filenames only
**   --context|-c N         Use N lines of context
**   --diff-binary BOOL     Include binary files when using external commands
**   --from|-r VERSION      select VERSION as source for the diff
**   --ignore-space-at-eol  Ignore changes to end-of-line whitespace
**   --ignore-space-at-sol  Ignore changes to start-of-line whitespace
**   --internal|-i          use internal diff logic
**   --side-by-side|-y      side-by-side diff
**   --tk                   Launch a Tcl/Tk GUI for display
**   --to VERSION           select VERSION as target for the diff
**   --unified              unified diff
**   -v|--verbose           output complete text of added or deleted files
**   -w                     Ignore changes to start-of-line and end-of-line
**                          whitespace
**   -W|--width             Width of lines in side-by-side diff
*/
void diff_cmd(void){
  int isGDiff;               /* True for gdiff.  False for normal diff */
  int isInternDiff;          /* True for internal diff */
  int verboseFlag;           /* True if -v or --verbose flag is used */
  const char *zFrom;         /* Source version number */
  const char *zTo;           /* Target version number */
................................................................................
  zBranch = find_option("branch", 0, 1);
  diffFlags = diff_options();
  verboseFlag = find_option("verbose","v",0)!=0;
  if( !verboseFlag ){
    verboseFlag = find_option("new-file","N",0)!=0; /* deprecated */
  }
  if( verboseFlag ) diffFlags |= DIFF_VERBOSE;

  if( zBranch ){
    if( zTo || zFrom ){
      fossil_fatal("cannot use --from or --to with --branch");
    }
    zTo = zBranch;
    zFrom = mprintf("root:%s", zBranch);
  }

Changes to src/event.c.

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      @ <div>
    }
    blob_init(&comment, pEvent->zComment, -1);
    wiki_convert(&comment, 0, WIKI_INLINE);
    blob_reset(&comment);
    @ </div>
    @ </blockquote><hr />
  }  

  wiki_convert(&tail, 0, 0);
  style_footer();
  manifest_destroy(pEvent);
}

/*
................................................................................
    int nEventId = strlen(zEventId);
    if( nEventId!=40 || !validate16(zEventId, 40) ){
      fossil_redirect_home();
      return;
    }
  }
  zTag = mprintf("event-%s", zEventId);
  rid = db_int(0, 
    "SELECT rid FROM tagxref"
    " WHERE tagid=(SELECT tagid FROM tag WHERE tagname=%Q)"
    " ORDER BY mtime DESC", zTag
  );
  free(zTag);

  /* Need both check-in and wiki-write or wiki-create privileges in order
................................................................................
      Blob tags, one;
      int i, j;
      Stmt q;
      char *zBlob;

      /* Load the tags string into a blob */
      blob_zero(&tags);
      blob_append(&tags, zTags, -1); 

      /* Collapse all sequences of whitespace and "," characters into
      ** a single space character */
      zBlob = blob_str(&tags);
      for(i=j=0; zBlob[i]; i++, j++){
        if( fossil_isspace(zBlob[i]) || zBlob[i]==',' ){
          while( fossil_isspace(zBlob[i+1]) ){ i++; }
................................................................................
      /* Extract the tags in sorted order and make an entry in the
      ** artifact for each. */
      db_prepare(&q, "SELECT x FROM newtags ORDER BY x");
      while( db_step(&q)==SQLITE_ROW ){
        blob_appendf(&event, "T +sym-%F *\n", db_column_text(&q, 0));
      }
      db_finalize(&q);
    }        
    if( g.zLogin ){
      blob_appendf(&event, "U %F\n", g.zLogin);
    }
    blob_appendf(&event, "W %d\n%s\n", strlen(zBody), zBody);
    md5sum_blob(&event, &cksum);
    blob_appendf(&event, "Z %b\n", &cksum);
    blob_reset(&cksum);
................................................................................
  @ <tr><th align="right" valign="top">Event&nbsp;Time (UTC):</th>
  @ <td valign="top">
  @   <input type="text" name="t" size="25" value="%h(zETime)" />
  @ </td></tr>

  @ <tr><th align="right" valign="top">Timeline&nbsp;Comment:</th>
  @ <td valign="top">
  @ <textarea name="c" class="eventedit" cols="80" 
  @  rows="3" wrap="virtual">%h(zComment)</textarea>
  @ </td></tr>

  @ <tr><th align="right" valign="top">Background&nbsp;Color:</th>
  @ <td valign="top">
  render_color_chooser(0, zClr, 0, "clr", "cclr");
  @ </td></tr>
  
  @ <tr><th align="right" valign="top">Tags:</th>
  @ <td valign="top">
  @   <input type="text" name="g" size="40" value="%h(zTags)" />
  @ </td></tr>
  
  @ <tr><th align="right" valign="top">Page&nbsp;Content:</th>
  @ <td valign="top">
  @ <textarea name="w" class="eventedit" cols="80" 
  @  rows="%d(n)" wrap="virtual">%h(zBody)</textarea>
  @ </td></tr>

  @ <tr><td colspan="2">
  @ <input type="submit" name="preview" value="Preview Your Changes" />
  @ <input type="submit" name="submit" value="Apply These Changes" />
  @ <input type="submit" name="cancel" value="Cancel" />
  @ </td></tr></table>
  @ </div></form>
  style_footer();
}







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      @ <div>
    }
    blob_init(&comment, pEvent->zComment, -1);
    wiki_convert(&comment, 0, WIKI_INLINE);
    blob_reset(&comment);
    @ </div>
    @ </blockquote><hr />
  }

  wiki_convert(&tail, 0, 0);
  style_footer();
  manifest_destroy(pEvent);
}

/*
................................................................................
    int nEventId = strlen(zEventId);
    if( nEventId!=40 || !validate16(zEventId, 40) ){
      fossil_redirect_home();
      return;
    }
  }
  zTag = mprintf("event-%s", zEventId);
  rid = db_int(0,
    "SELECT rid FROM tagxref"
    " WHERE tagid=(SELECT tagid FROM tag WHERE tagname=%Q)"
    " ORDER BY mtime DESC", zTag
  );
  free(zTag);

  /* Need both check-in and wiki-write or wiki-create privileges in order
................................................................................
      Blob tags, one;
      int i, j;
      Stmt q;
      char *zBlob;

      /* Load the tags string into a blob */
      blob_zero(&tags);
      blob_append(&tags, zTags, -1);

      /* Collapse all sequences of whitespace and "," characters into
      ** a single space character */
      zBlob = blob_str(&tags);
      for(i=j=0; zBlob[i]; i++, j++){
        if( fossil_isspace(zBlob[i]) || zBlob[i]==',' ){
          while( fossil_isspace(zBlob[i+1]) ){ i++; }
................................................................................
      /* Extract the tags in sorted order and make an entry in the
      ** artifact for each. */
      db_prepare(&q, "SELECT x FROM newtags ORDER BY x");
      while( db_step(&q)==SQLITE_ROW ){
        blob_appendf(&event, "T +sym-%F *\n", db_column_text(&q, 0));
      }
      db_finalize(&q);
    }
    if( g.zLogin ){
      blob_appendf(&event, "U %F\n", g.zLogin);
    }
    blob_appendf(&event, "W %d\n%s\n", strlen(zBody), zBody);
    md5sum_blob(&event, &cksum);
    blob_appendf(&event, "Z %b\n", &cksum);
    blob_reset(&cksum);
................................................................................
  @ <tr><th align="right" valign="top">Event&nbsp;Time (UTC):</th>
  @ <td valign="top">
  @   <input type="text" name="t" size="25" value="%h(zETime)" />
  @ </td></tr>

  @ <tr><th align="right" valign="top">Timeline&nbsp;Comment:</th>
  @ <td valign="top">
  @ <textarea name="c" class="eventedit" cols="80"
  @  rows="3" wrap="virtual">%h(zComment)</textarea>
  @ </td></tr>

  @ <tr><th align="right" valign="top">Background&nbsp;Color:</th>
  @ <td valign="top">
  render_color_chooser(0, zClr, 0, "clr", "cclr");
  @ </td></tr>

  @ <tr><th align="right" valign="top">Tags:</th>
  @ <td valign="top">
  @   <input type="text" name="g" size="40" value="%h(zTags)" />
  @ </td></tr>

  @ <tr><th align="right" valign="top">Page&nbsp;Content:</th>
  @ <td valign="top">
  @ <textarea name="w" class="eventedit" cols="80"
  @  rows="%d(n)" wrap="virtual">%h(zBody)</textarea>
  @ </td></tr>

  @ <tr><td colspan="2">
  @ <input type="submit" name="preview" value="Preview Your Changes" />
  @ <input type="submit" name="submit" value="Apply These Changes" />
  @ <input type="submit" name="cancel" value="Cancel" />
  @ </td></tr></table>
  @ </div></form>
  style_footer();
}

Changes to src/file.c.

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*/
void file_copy(const char *zFrom, const char *zTo){
  FILE *in, *out;
  int got;
  char zBuf[8192];
  in = fossil_fopen(zFrom, "rb");
  if( in==0 ) fossil_fatal("cannot open \"%s\" for reading", zFrom);

  out = fossil_fopen(zTo, "wb");
  if( out==0 ) fossil_fatal("cannot open \"%s\" for writing", zTo);
  while( (got=fread(zBuf, 1, sizeof(zBuf), in))>0 ){
    fwrite(zBuf, 1, got, out);
  }
  fclose(in);
  fclose(out);
}

















/*
** Set or clear the execute bit on a file.  Return true if a change
** occurred and false if this routine is a no-op.
*/
int file_wd_setexe(const char *zFilename, int onoff){
  int rc = 0;
................................................................................
    rc = mkdir(zName, 0755);
#endif
    fossil_filename_free(zMbcs);
    return rc;
  }
  return 0;
}




































/*
** Removes the directory named in the argument, if it exists.  The directory
** must be empty and cannot be the current directory or the root directory.
**
** Returns zero upon success.
*/
................................................................................
  *pJ = i-1;
  return 1;
}

/*
** Simplify a filename by
**

**  * Convert all \ into / on windows and cygwin
**  * removing any trailing and duplicate /
**  * removing /./
**  * removing /A/../
**
** Changes are made in-place.  Return the new name length.
** If the slash parameter is non-zero, the trailing slash, if any,
** is retained.
*/
int file_simplify_name(char *z, int n, int slash){
  int i, j;
  if( n<0 ) n = strlen(z);

  /* On windows and cygwin convert all \ characters to / */

#if defined(_WIN32) || defined(__CYGWIN__)
  for(i=0; i<n; i++){

    if( z[i]=='\\' ) z[i] = '/';









  }
#endif

  /* Removing trailing "/" characters */
  if( !slash ){
    while( n>1 && z[n-1]=='/' ){ n--; }
  }

  /* Remove duplicate '/' characters.  Except, two // at the beginning
  ** of a pathname is allowed since this is important on windows. */
  for(i=j=1; i<n; i++){
    z[j++] = z[i];
    while( z[i]=='/' && i<n-1 && z[i+1]=='/' ) i++;
  }
  n = j;

  /* Skip over zero or more initial "./" sequences */
  for(i=0; i<n-1 && z[i]=='.' && z[i+1]=='/'; i+=2){}







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*/
void file_copy(const char *zFrom, const char *zTo){
  FILE *in, *out;
  int got;
  char zBuf[8192];
  in = fossil_fopen(zFrom, "rb");
  if( in==0 ) fossil_fatal("cannot open \"%s\" for reading", zFrom);
  file_mkfolder(zTo, 0);
  out = fossil_fopen(zTo, "wb");
  if( out==0 ) fossil_fatal("cannot open \"%s\" for writing", zTo);
  while( (got=fread(zBuf, 1, sizeof(zBuf), in))>0 ){
    fwrite(zBuf, 1, got, out);
  }
  fclose(in);
  fclose(out);
}

/*
** COMMAND: test-file-copy
**
** Usage: %fossil test-file-copy SOURCE DESTINATION
**
** Make a copy of the file at SOURCE into a new name DESTINATION.  Any
** directories in the path leading up to DESTINATION that do not already
** exist are created automatically.
*/
void test_file_copy(void){
  if( g.argc!=4 ){
    fossil_fatal("Usage: %s test-file-copy SOURCE DESTINATION", g.argv[0]);
  }
  file_copy(g.argv[2], g.argv[3]);
}

/*
** Set or clear the execute bit on a file.  Return true if a change
** occurred and false if this routine is a no-op.
*/
int file_wd_setexe(const char *zFilename, int onoff){
  int rc = 0;
................................................................................
    rc = mkdir(zName, 0755);
#endif
    fossil_filename_free(zMbcs);
    return rc;
  }
  return 0;
}

/*
** Create the tree of directories in which zFilename belongs, if that sequence
** of directories does not already exist.
*/
void file_mkfolder(const char *zFilename, int forceFlag){
  int i, nName;
  char *zName;

  nName = strlen(zFilename);
  zName = mprintf("%s", zFilename);
  nName = file_simplify_name(zName, nName, 0);
  for(i=1; i<nName; i++){
    if( zName[i]=='/' ){
      zName[i] = 0;
#if defined(_WIN32) || defined(__CYGWIN__)
      /*
      ** On Windows, local path looks like: C:/develop/project/file.txt
      ** The if stops us from trying to create a directory of a drive letter
      ** C: in this example.
      */
      if( !(i==2 && zName[1]==':') ){
#endif
        if( file_mkdir(zName, forceFlag) && file_isdir(zName)!=1 ){
          fossil_fatal_recursive("unable to create directory %s", zName);
          return;
        }
#if defined(_WIN32) || defined(__CYGWIN__)
      }
#endif
      zName[i] = '/';
    }
  }
  free(zName);
}

/*
** Removes the directory named in the argument, if it exists.  The directory
** must be empty and cannot be the current directory or the root directory.
**
** Returns zero upon success.
*/
................................................................................
  *pJ = i-1;
  return 1;
}

/*
** Simplify a filename by
**
**  * Remove extended path prefix on windows and cygwin
**  * Convert all \ into / on windows and cygwin
**  * removing any trailing and duplicate /
**  * removing /./
**  * removing /A/../
**
** Changes are made in-place.  Return the new name length.
** If the slash parameter is non-zero, the trailing slash, if any,
** is retained.
*/
int file_simplify_name(char *z, int n, int slash){
  int i = 1, j;
  if( n<0 ) n = strlen(z);

  /* On windows and cygwin convert all \ characters to /
   * and remove extended path prefix if present */
#if defined(_WIN32) || defined(__CYGWIN__)

  for(j=0; j<n; j++){
    if( z[j]=='\\' ) z[j] = '/';
  }
  if( n>3 && !memcmp(z, "//?/", 4) ){
    if( fossil_strnicmp(z+4,"UNC", 3) ){
      i += 4;
      z[0] = z[4];
    }else{
      i += 6;
      z[0] = '/';
    }
  }
#endif

  /* Removing trailing "/" characters */
  if( !slash ){
    while( n>1 && z[n-1]=='/' ){ n--; }
  }

  /* Remove duplicate '/' characters.  Except, two // at the beginning
  ** of a pathname is allowed since this is important on windows. */
  for(j=1; i<n; i++){
    z[j++] = z[i];
    while( z[i]=='/' && i<n-1 && z[i+1]=='/' ) i++;
  }
  n = j;

  /* Skip over zero or more initial "./" sequences */
  for(i=0; i<n-1 && z[i]=='.' && z[i+1]=='/'; i+=2){}

Changes to src/info.c.

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u64 construct_diff_flags(int verboseFlag, int sideBySide){
  u64 diffFlags;
  if( verboseFlag==0 ){
    diffFlags = 0;  /* Zero means do not show any diff */
  }else{
    int x;
    if( sideBySide ){
      diffFlags = DIFF_SIDEBYSIDE | DIFF_IGNORE_EOLWS;

      /* "dw" query parameter determines width of each column */
      x = atoi(PD("dw","80"))*(DIFF_CONTEXT_MASK+1);
      if( x<0 || x>DIFF_WIDTH_MASK ) x = DIFF_WIDTH_MASK;
      diffFlags += x;
    }else{
      diffFlags = DIFF_INLINE | DIFF_IGNORE_EOLWS;
    }




    /* "dc" query parameter determines lines of context */
    x = atoi(PD("dc","7"));
    if( x<0 || x>DIFF_CONTEXT_MASK ) x = DIFF_CONTEXT_MASK;
    diffFlags += x;

    /* The "noopt" parameter disables diff optimization */
    if( PD("noopt",0)!=0 ) diffFlags |= DIFF_NOOPT;
  }
  return diffFlags;
}


/*
** WEBPAGE: vinfo
** WEBPAGE: ci
** URL:  /ci?name=RID|ARTIFACTID
**
** Display information about a particular check-in.
................................................................................
  }else{
    style_header("Check-in Information");
    login_anonymous_available();
  }
  db_finalize(&q1);
  showTags(rid, "");
  if( zParent ){



    @ <div class="section">Changes</div>
    @ <div class="sectionmenu">
    verboseFlag = g.zPath[0]!='c';
    if( db_get_boolean("show-version-diffs", 0)==0 ){
      verboseFlag = !verboseFlag;
      if( verboseFlag ){
        @ %z(xhref("class='button'","%R/vinfo/%T",zName))
        @ hide&nbsp;diffs</a>
        if( sideBySide ){
          @ %z(xhref("class='button'","%R/ci/%T?sbs=0",zName))
          @ unified&nbsp;diffs</a>
        }else{
          @ %z(xhref("class='button'","%R/ci/%T?sbs=1",zName))
          @ side-by-side&nbsp;diffs</a>
        }
      }else{
        @ %z(xhref("class='button'","%R/ci/%T?sbs=0",zName))
        @ show&nbsp;unified&nbsp;diffs</a>
        @ %z(xhref("class='button'","%R/ci/%T?sbs=1",zName))
        @ show&nbsp;side-by-side&nbsp;diffs</a>
      }
    }else{
      if( verboseFlag ){
        @ %z(xhref("class='button'","%R/ci/%T",zName))hide&nbsp;diffs</a>
        if( sideBySide ){
          @ %z(xhref("class='button'","%R/info/%T?sbs=0",zName))
          @ unified&nbsp;diffs</a>
        }else{
          @ %z(xhref("class='button'","%R/info/%T?sbs=1",zName))
          @ side-by-side&nbsp;diffs</a>
        }
      }else{
        @ %z(xhref("class='button'","%R/vinfo/%T?sbs=0",zName))
        @ show&nbsp;unified&nbsp;diffs</a>
        @ %z(xhref("class='button'","%R/vinfo/%T?sbs=1",zName))
        @ show&nbsp;side-by-side&nbsp;diffs</a>
      }
    }
    @ %z(xhref("class='button'","%R/vpatch?from=%S&to=%S",zParent,zUuid))
    @ patch</a></div>
    if( pRe ){
      @ <p><b>Only differences that match regular expression "%h(zRe)"
      @ are shown.</b></p>
    }
    db_prepare(&q3,
       "SELECT name,"
       "       mperm,"
................................................................................
       "  FROM mlink JOIN filename ON filename.fnid=mlink.fnid"
       " WHERE mlink.mid=%d"
       "   AND (mlink.fid>0"
              " OR mlink.fnid NOT IN (SELECT pfnid FROM mlink WHERE mid=%d))"
       " ORDER BY name /*sort*/",
       rid, rid
    );
    diffFlags = construct_diff_flags(verboseFlag, sideBySide);
    while( db_step(&q3)==SQLITE_ROW ){
      const char *zName = db_column_text(&q3,0);
      int mperm = db_column_int(&q3, 1);
      const char *zOld = db_column_text(&q3,2);
      const char *zNew = db_column_text(&q3,3);
      const char *zOldName = db_column_text(&q3, 4);
      append_file_change_line(zName, zOld, zNew, zOldName, diffFlags,pRe,mperm);
................................................................................
  u64 diffFlags = 0;
  Manifest *pFrom, *pTo;
  ManifestFile *pFileFrom, *pFileTo;
  const char *zBranch;
  const char *zFrom;
  const char *zTo;
  const char *zRe;

  const char *zVerbose;
  const char *zGlob;
  ReCompiled *pRe = 0;
  login_check_credentials();
  if( !g.perm.Read ){ login_needed(); return; }
  login_anonymous_available();
  zRe = P("regex");
................................................................................
  if( !verboseFlag && sideBySide ) verboseFlag = 1;
  zGlob = P("glob");
  zFrom = P("from");
  zTo = P("to");
  if(zGlob && !*zGlob){
    zGlob = NULL;
  }


  if( sideBySide || verboseFlag ){
    style_submenu_element("Hide Diff", "hidediff",
                          "%R/vdiff?from=%T&to=%T&sbs=0%s%T",
                          zFrom, zTo,
                          zGlob ? "&glob=" : "", zGlob ? zGlob : "");
  }
  if( !sideBySide ){
    style_submenu_element("Side-by-side Diff", "sbsdiff",
                          "%R/vdiff?from=%T&to=%T&sbs=1%s%T",
                          zFrom, zTo,
                          zGlob ? "&glob=" : "", zGlob ? zGlob : "");
  }
  if( sideBySide || !verboseFlag ) {
    style_submenu_element("Unified Diff", "udiff",
                          "%R/vdiff?from=%T&to=%T&sbs=0&v%s%T",
                          zFrom, zTo,
                          zGlob ? "&glob=" : "", zGlob ? zGlob : "");
  }
  style_submenu_element("Invert", "invert",
                        "%R/vdiff?from=%T&to=%T&sbs=%d%s%s%T", zTo, zFrom,
                        sideBySide, (verboseFlag && !sideBySide)?"&v":"",
                        zGlob ? "&glob=" : "", zGlob ? zGlob : "");
  if( zGlob ){
    style_submenu_element("Clear glob", "clearglob",
                          "%R/vdiff?from=%T&to=%T&sbs=%d%s", zFrom, zTo,
                          sideBySide, (verboseFlag && !sideBySide)?"&v":"");
  }else{
    style_submenu_element("Patch", "patch",
                          "%R/vpatch?from=%T&to=%T", zFrom, zTo);













  }
  style_header("Check-in Differences");
  @ <h2>Difference From:</h2><blockquote>
  checkin_description(ridFrom);
  @ </blockquote><h2>To:</h2><blockquote>
  checkin_description(ridTo);
  @ </blockquote>
................................................................................
  }
  @<hr /><p>

  manifest_file_rewind(pFrom);
  pFileFrom = manifest_file_next(pFrom, 0);
  manifest_file_rewind(pTo);
  pFileTo = manifest_file_next(pTo, 0);
  diffFlags = construct_diff_flags(verboseFlag, sideBySide);
  while( pFileFrom || pFileTo ){
    int cmp;
    if( pFileFrom==0 ){
      cmp = +1;
    }else if( pFileTo==0 ){
      cmp = -1;
    }else{
................................................................................
void diff_page(void){
  int v1, v2;
  int isPatch;
  int sideBySide;
  char *zV1;
  char *zV2;
  const char *zRe;

  ReCompiled *pRe = 0;
  u64 diffFlags;

  login_check_credentials();
  if( !g.perm.Read ){ login_needed(); return; }
  v1 = name_to_rid_www("v1");
  v2 = name_to_rid_www("v2");
................................................................................

  sideBySide = !is_false(PD("sbs","1"));
  zV1 = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", v1);
  zV2 = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", v2);
  diffFlags = construct_diff_flags(1, sideBySide) | DIFF_HTML;

  style_header("Diff");











  style_submenu_element("Patch", "Patch", "%s/fdiff?v1=%T&v2=%T&patch",
                        g.zTop, P("v1"), P("v2"));
  if( !sideBySide ){
    style_submenu_element("Side-by-side Diff", "sbsdiff",
                          "%s/fdiff?v1=%T&v2=%T&sbs=1",
                          g.zTop, P("v1"), P("v2"));
  }else{
    style_submenu_element("Unified Diff", "udiff",
                          "%s/fdiff?v1=%T&v2=%T&sbs=0",
                          g.zTop, P("v1"), P("v2"));
  }

  if( P("smhdr")!=0 ){
    @ <h2>Differences From Artifact
    @ %z(href("%R/artifact/%S",zV1))[%S(zV1)]</a> To
    @ %z(href("%R/artifact/%S",zV2))[%S(zV2)]</a>.</h2>
  }else{







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u64 construct_diff_flags(int verboseFlag, int sideBySide){
  u64 diffFlags;
  if( verboseFlag==0 ){
    diffFlags = 0;  /* Zero means do not show any diff */
  }else{
    int x;
    if( sideBySide ){
      diffFlags = DIFF_SIDEBYSIDE;

      /* "dw" query parameter determines width of each column */
      x = atoi(PD("dw","80"))*(DIFF_CONTEXT_MASK+1);
      if( x<0 || x>DIFF_WIDTH_MASK ) x = DIFF_WIDTH_MASK;
      diffFlags += x;
    }else{
      diffFlags = DIFF_INLINE;
    }

    if( P("w") ){
      diffFlags |= (DIFF_IGNORE_SOLWS|DIFF_IGNORE_EOLWS);
    }
    /* "dc" query parameter determines lines of context */
    x = atoi(PD("dc","7"));
    if( x<0 || x>DIFF_CONTEXT_MASK ) x = DIFF_CONTEXT_MASK;
    diffFlags += x;

    /* The "noopt" parameter disables diff optimization */
    if( PD("noopt",0)!=0 ) diffFlags |= DIFF_NOOPT;
  }
  return diffFlags;
}


/*
** WEBPAGE: vinfo
** WEBPAGE: ci
** URL:  /ci?name=RID|ARTIFACTID
**
** Display information about a particular check-in.
................................................................................
  }else{
    style_header("Check-in Information");
    login_anonymous_available();
  }
  db_finalize(&q1);
  showTags(rid, "");
  if( zParent ){
    const char *zW;               /* URL param for ignoring whitespace */
    const char *zPage = "vinfo";  /* Page that shows diffs */
    const char *zPageHide = "ci"; /* Page that hides diffs */
    @ <div class="section">Changes</div>
    @ <div class="sectionmenu">
    verboseFlag = g.zPath[0]!='c';
    if( db_get_boolean("show-version-diffs", 0)==0 ){
      verboseFlag = !verboseFlag;
      zPage = "ci";
      zPageHide = "vinfo";
    }
    diffFlags = construct_diff_flags(verboseFlag, sideBySide);
    zW = (diffFlags&(DIFF_IGNORE_SOLWS|DIFF_IGNORE_EOLWS))?"&w":"";
    if( verboseFlag ){
      @ %z(xhref("class='button'","%R/%s/%T",zPageHide,zName))
      @ Hide&nbsp;Diffs</a>
      if( sideBySide ){
        @ %z(xhref("class='button'","%R/%s/%T?sbs=0%s",zPage,zName,zW))
        @ Unified&nbsp;Diffs</a>
      }else{
        @ %z(xhref("class='button'","%R/%s/%T?sbs=1%s",zPage,zName,zW))
        @ Side-by-Side&nbsp;Diffs</a>
      }
      if( *zW ){
        @ %z(xhref("class='button'","%R/%s/%T?sbs=%d",zPage,zName,sideBySide))
        @ Show&nbsp;Whitespace&nbsp;Changes</a>
      }else{
        @ %z(xhref("class='button'","%R/%s/%T?sbs=%d&w",zPage,zName,sideBySide))
        @ Ignore&nbsp;Whitespace</a>
      }
    }else{
      @ %z(xhref("class='button'","%R/%s/%T?sbs=0",zPage,zName))
      @ Show&nbsp;Unified&nbsp;Diffs</a>
      @ %z(xhref("class='button'","%R/%s/%T?sbs=1",zPage,zName))
      @ Show&nbsp;Side-by-Side&nbsp;Diffs</a>
    }
    @ %z(xhref("class='button'","%R/vpatch?from=%S&to=%S",zParent,zUuid))
    @ Patch</a></div>





    if( pRe ){
      @ <p><b>Only differences that match regular expression "%h(zRe)"
      @ are shown.</b></p>
    }
    db_prepare(&q3,
       "SELECT name,"
       "       mperm,"
................................................................................
       "  FROM mlink JOIN filename ON filename.fnid=mlink.fnid"
       " WHERE mlink.mid=%d"
       "   AND (mlink.fid>0"
              " OR mlink.fnid NOT IN (SELECT pfnid FROM mlink WHERE mid=%d))"
       " ORDER BY name /*sort*/",
       rid, rid
    );

    while( db_step(&q3)==SQLITE_ROW ){
      const char *zName = db_column_text(&q3,0);
      int mperm = db_column_int(&q3, 1);
      const char *zOld = db_column_text(&q3,2);
      const char *zNew = db_column_text(&q3,3);
      const char *zOldName = db_column_text(&q3, 4);
      append_file_change_line(zName, zOld, zNew, zOldName, diffFlags,pRe,mperm);
................................................................................
  u64 diffFlags = 0;
  Manifest *pFrom, *pTo;
  ManifestFile *pFileFrom, *pFileTo;
  const char *zBranch;
  const char *zFrom;
  const char *zTo;
  const char *zRe;
  const char *zW;
  const char *zVerbose;
  const char *zGlob;
  ReCompiled *pRe = 0;
  login_check_credentials();
  if( !g.perm.Read ){ login_needed(); return; }
  login_anonymous_available();
  zRe = P("regex");
................................................................................
  if( !verboseFlag && sideBySide ) verboseFlag = 1;
  zGlob = P("glob");
  zFrom = P("from");
  zTo = P("to");
  if(zGlob && !*zGlob){
    zGlob = NULL;
  }
  diffFlags = construct_diff_flags(verboseFlag, sideBySide);
  zW = (diffFlags&(DIFF_IGNORE_SOLWS|DIFF_IGNORE_EOLWS))?"&w":"";
  if( sideBySide || verboseFlag ){
    style_submenu_element("Hide Diff", "hidediff",
                          "%R/vdiff?from=%T&to=%T&sbs=0%s%T%s",
                          zFrom, zTo,
                          zGlob ? "&glob=" : "", zGlob ? zGlob : "", zW);
  }
  if( !sideBySide ){
    style_submenu_element("Side-by-Side Diff", "sbsdiff",
                          "%R/vdiff?from=%T&to=%T&sbs=1%s%T%s",
                          zFrom, zTo,
                          zGlob ? "&glob=" : "", zGlob ? zGlob : "", zW);
  }
  if( sideBySide || !verboseFlag ) {
    style_submenu_element("Unified Diff", "udiff",
                          "%R/vdiff?from=%T&to=%T&sbs=0&v%s%T%s",
                          zFrom, zTo,
                          zGlob ? "&glob=" : "", zGlob ? zGlob : "", zW);
  }
  style_submenu_element("Invert", "invert",
                        "%R/vdiff?from=%T&to=%T&sbs=%d%s%s%T%s", zTo, zFrom,
                        sideBySide, (verboseFlag && !sideBySide)?"&v":"",
                        zGlob ? "&glob=" : "", zGlob ? zGlob : "", zW);
  if( zGlob ){
    style_submenu_element("Clear glob", "clearglob",
                          "%R/vdiff?from=%T&to=%T&sbs=%d%s%s", zFrom, zTo,
                          sideBySide, (verboseFlag && !sideBySide)?"&v":"", zW);
  }else{
    style_submenu_element("Patch", "patch",
                          "%R/vpatch?from=%T&to=%T%s", zFrom, zTo, zW);
  }
  if( sideBySide || verboseFlag ){
    if( *zW ){
      style_submenu_element("Show Whitespace Differences", "whitespace",
                            "%R/vdiff?from=%T&to=%T&sbs=%d%s%s%T", zFrom, zTo,
                            sideBySide, (verboseFlag && !sideBySide)?"&v":"",
                            zGlob ? "&glob=" : "", zGlob ? zGlob : "");
    }else{
      style_submenu_element("Ignore Whitespace", "ignorews",
                            "%R/vdiff?from=%T&to=%T&sbs=%d%s%s%T&w", zFrom, zTo,
                            sideBySide, (verboseFlag && !sideBySide)?"&v":"",
                            zGlob ? "&glob=" : "", zGlob ? zGlob : "");
    }
  }
  style_header("Check-in Differences");
  @ <h2>Difference From:</h2><blockquote>
  checkin_description(ridFrom);
  @ </blockquote><h2>To:</h2><blockquote>
  checkin_description(ridTo);
  @ </blockquote>
................................................................................
  }
  @<hr /><p>

  manifest_file_rewind(pFrom);
  pFileFrom = manifest_file_next(pFrom, 0);
  manifest_file_rewind(pTo);
  pFileTo = manifest_file_next(pTo, 0);

  while( pFileFrom || pFileTo ){
    int cmp;
    if( pFileFrom==0 ){
      cmp = +1;
    }else if( pFileTo==0 ){
      cmp = -1;
    }else{
................................................................................
void diff_page(void){
  int v1, v2;
  int isPatch;
  int sideBySide;
  char *zV1;
  char *zV2;
  const char *zRe;
  const char *zW;      /* URL param for ignoring whitespace */
  ReCompiled *pRe = 0;
  u64 diffFlags;

  login_check_credentials();
  if( !g.perm.Read ){ login_needed(); return; }
  v1 = name_to_rid_www("v1");
  v2 = name_to_rid_www("v2");
................................................................................

  sideBySide = !is_false(PD("sbs","1"));
  zV1 = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", v1);
  zV2 = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", v2);
  diffFlags = construct_diff_flags(1, sideBySide) | DIFF_HTML;

  style_header("Diff");
  zW = (diffFlags&(DIFF_IGNORE_SOLWS|DIFF_IGNORE_EOLWS))?"&w":"";
  if( *zW ){
    diffFlags |= (DIFF_IGNORE_SOLWS|DIFF_IGNORE_EOLWS);
    style_submenu_element("Show Whitespace Changes", "Show Whitespace Changes",
                          "%s/fdiff?v1=%T&v2=%T&sbs=%d",
                          g.zTop, P("v1"), P("v2"), sideBySide);
  }else{
    style_submenu_element("Ignore Whitespace", "Ignore Whitespace",
                          "%s/fdiff?v1=%T&v2=%T&sbs=%d&w",
                          g.zTop, P("v1"), P("v2"), sideBySide);
  }
  style_submenu_element("Patch", "Patch", "%s/fdiff?v1=%T&v2=%T&patch",
                        g.zTop, P("v1"), P("v2"));
  if( !sideBySide ){
    style_submenu_element("Side-by-Side Diff", "sbsdiff",
                          "%s/fdiff?v1=%T&v2=%T&sbs=1%s",
                          g.zTop, P("v1"), P("v2"), zW);
  }else{
    style_submenu_element("Unified Diff", "udiff",
                          "%s/fdiff?v1=%T&v2=%T&sbs=0%s",
                          g.zTop, P("v1"), P("v2"), zW);
  }

  if( P("smhdr")!=0 ){
    @ <h2>Differences From Artifact
    @ %z(href("%R/artifact/%S",zV1))[%S(zV1)]</a> To
    @ %z(href("%R/artifact/%S",zV2))[%S(zV2)]</a>.</h2>
  }else{

Changes to src/json_timeline.c.

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}

/*
** Create a temporary table suitable for storing timeline data.
*/
static void json_timeline_temp_table(void){
  /* Field order MUST match that from json_timeline_query()!!! */
  static const char zSql[] = 
    @ CREATE TEMP TABLE IF NOT EXISTS json_timeline(
    @   sortId INTEGER PRIMARY KEY,
    @   rid INTEGER,
    @   uuid TEXT,
    @   mtime INTEGER,
    @   timestampString TEXT,
    @   comment TEXT,
................................................................................
    @   bgcolor,
    @   event.type,
    @   (SELECT group_concat(substr(tagname,5), ',') FROM tag, tagxref
    @     WHERE tagname GLOB 'sym-*' AND tag.tagid=tagxref.tagid
    @       AND tagxref.rid=blob.rid AND tagxref.tagtype>0) as tags,
    @   tagid as tagId,
    @   brief as brief
    @  FROM event JOIN blob 
    @ WHERE blob.rid=event.objid
  ;
  return zBaseSql;
}

/*
** Internal helper to append query information if the
................................................................................
** flags may optionally be a bitmask of json_get_changed_files flags,
** or 0 for defaults.
*/
cson_value * json_get_changed_files(int rid, int flags){
  cson_value * rowsV = NULL;
  cson_array * rows = NULL;
  Stmt q = empty_Stmt;
  db_prepare(&q, 
           "SELECT (pid==0) AS isnew,"
           "       (fid==0) AS isdel,"
           "       (SELECT name FROM filename WHERE fnid=mlink.fnid) AS name,"
           "       blob.uuid as uuid,"
           "       (SELECT uuid FROM blob WHERE rid=pid) as parent,"
           "       blob.size as size"
           "  FROM mlink, blob"







|







 







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}

/*
** Create a temporary table suitable for storing timeline data.
*/
static void json_timeline_temp_table(void){
  /* Field order MUST match that from json_timeline_query()!!! */
  static const char zSql[] =
    @ CREATE TEMP TABLE IF NOT EXISTS json_timeline(
    @   sortId INTEGER PRIMARY KEY,
    @   rid INTEGER,
    @   uuid TEXT,
    @   mtime INTEGER,
    @   timestampString TEXT,
    @   comment TEXT,
................................................................................
    @   bgcolor,
    @   event.type,
    @   (SELECT group_concat(substr(tagname,5), ',') FROM tag, tagxref
    @     WHERE tagname GLOB 'sym-*' AND tag.tagid=tagxref.tagid
    @       AND tagxref.rid=blob.rid AND tagxref.tagtype>0) as tags,
    @   tagid as tagId,
    @   brief as brief
    @  FROM event JOIN blob
    @ WHERE blob.rid=event.objid
  ;
  return zBaseSql;
}

/*
** Internal helper to append query information if the
................................................................................
** flags may optionally be a bitmask of json_get_changed_files flags,
** or 0 for defaults.
*/
cson_value * json_get_changed_files(int rid, int flags){
  cson_value * rowsV = NULL;
  cson_array * rows = NULL;
  Stmt q = empty_Stmt;
  db_prepare(&q,
           "SELECT (pid==0) AS isnew,"
           "       (fid==0) AS isdel,"
           "       (SELECT name FROM filename WHERE fnid=mlink.fnid) AS name,"
           "       blob.uuid as uuid,"
           "       (SELECT uuid FROM blob WHERE rid=pid) as parent,"
           "       blob.size as size"
           "  FROM mlink, blob"

Changes to src/makemake.tcl.

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  -DUSE_SYSTEM_SQLITE=$(USE_SYSTEM_SQLITE)
  -DSQLITE_SHELL_DBNAME_PROC=fossil_open
}

# Options used to compile the included SQLite shell on Windows.
#
set SHELL_WIN32_OPTIONS $SHELL_OPTIONS

lappend SHELL_WIN32_OPTIONS -Dgetenv=fossil_getenv
lappend SHELL_WIN32_OPTIONS -Dfopen=fossil_fopen

# Name of the final application
#
set name fossil

................................................................................
  writeln "\t\$(TRANSLATE) \$(SRCDIR)/$s.c >\$(OBJDIR)/${s}_.c\n"
  writeln "\$(OBJDIR)/$s.o:\t\$(OBJDIR)/${s}_.c \$(OBJDIR)/$s.h $extra_h($s) \$(SRCDIR)/config.h"
  writeln "\t\$(XTCC) -o \$(OBJDIR)/$s.o -c \$(OBJDIR)/${s}_.c\n"
  writeln "\$(OBJDIR)/${s}.h:\t\$(OBJDIR)/headers\n"
}

set MINGW_SQLITE_OPTIONS $SQLITE_OPTIONS
lappend MINGW_SQLITE_OPTIONS -D_HAVE_SQLITE_CONFIG_H
lappend MINGW_SQLITE_OPTIONS -DSQLITE_USE_MALLOC_H
lappend MINGW_SQLITE_OPTIONS -DSQLITE_USE_MSIZE

set j " \\\n                 "
writeln "SQLITE_OPTIONS = [join $MINGW_SQLITE_OPTIONS $j]\n"
set j " \\\n                "
writeln "SHELL_OPTIONS = [join $SHELL_WIN32_OPTIONS $j]\n"







>







 







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  -DUSE_SYSTEM_SQLITE=$(USE_SYSTEM_SQLITE)
  -DSQLITE_SHELL_DBNAME_PROC=fossil_open
}

# Options used to compile the included SQLite shell on Windows.
#
set SHELL_WIN32_OPTIONS $SHELL_OPTIONS
lappend SHELL_WIN32_OPTIONS -Daccess=win32_access
lappend SHELL_WIN32_OPTIONS -Dgetenv=fossil_getenv
lappend SHELL_WIN32_OPTIONS -Dfopen=fossil_fopen

# Name of the final application
#
set name fossil

................................................................................
  writeln "\t\$(TRANSLATE) \$(SRCDIR)/$s.c >\$(OBJDIR)/${s}_.c\n"
  writeln "\$(OBJDIR)/$s.o:\t\$(OBJDIR)/${s}_.c \$(OBJDIR)/$s.h $extra_h($s) \$(SRCDIR)/config.h"
  writeln "\t\$(XTCC) -o \$(OBJDIR)/$s.o -c \$(OBJDIR)/${s}_.c\n"
  writeln "\$(OBJDIR)/${s}.h:\t\$(OBJDIR)/headers\n"
}

set MINGW_SQLITE_OPTIONS $SQLITE_OPTIONS
lappend MINGW_SQLITE_OPTIONS -D_HAVE__MINGW_H
lappend MINGW_SQLITE_OPTIONS -DSQLITE_USE_MALLOC_H
lappend MINGW_SQLITE_OPTIONS -DSQLITE_USE_MSIZE

set j " \\\n                 "
writeln "SQLITE_OPTIONS = [join $MINGW_SQLITE_OPTIONS $j]\n"
set j " \\\n                "
writeln "SHELL_OPTIONS = [join $SHELL_WIN32_OPTIONS $j]\n"

Changes to src/schema.c.

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*/
#include "config.h"
#include "schema.h"

/*
** The database schema for the ~/.fossil configuration database.
*/
const char zConfigSchema[] = 
@ -- This file contains the schema for the database that is kept in the
@ -- ~/.fossil file and that stores information about the users setup.
@ --
@ CREATE TABLE global_config(
@   name TEXT PRIMARY KEY,
@   value TEXT
@ );
................................................................................
#define CONTENT_SCHEMA  "2"
#define AUX_SCHEMA      "2011-04-25 19:50"

#endif /* INTERFACE */


/*
** The schema for a repository database.  
**
** Schema1[] contains parts of the schema that are fixed and unchanging
** across versions.  Schema2[] contains parts of the schema that can
** change from one version to the next.  The information in Schema2[]
** is reconstructed from the information in Schema1[] by the "rebuild"
** operation.
*/
const char zRepositorySchema1[] = 
@ -- The BLOB and DELTA tables contain all records held in the repository.
@ --
@ -- The BLOB.CONTENT column is always compressed using zlib.  This
@ -- column might hold the full text of the record or it might hold
@ -- a delta that is able to reconstruct the record from some other
@ -- record.  If BLOB.CONTENT holds a delta, then a DELTA table entry
@ -- will exist for the record and that entry will point to another
@ -- entry that holds the source of the delta.  Deltas can be chained.
@ --
@ -- The blob and delta tables collectively hold the "global state" of
@ -- a Fossil repository.  
@ --
@ CREATE TABLE blob(
@   rid INTEGER PRIMARY KEY,        -- Record ID
@   rcvid INTEGER,                  -- Origin of this record
@   size INTEGER,                   -- Size of content. -1 for a phantom.
@   uuid TEXT UNIQUE NOT NULL,      -- SHA1 hash of the content
@   content BLOB,                   -- Compressed content of this record
................................................................................
@ );
@ CREATE INDEX delta_i1 ON delta(srcid);
@
@ -------------------------------------------------------------------------
@ -- The BLOB and DELTA tables above hold the "global state" of a Fossil
@ -- project; the stuff that is normally exchanged during "sync".  The
@ -- "local state" of a repository is contained in the remaining tables of
@ -- the zRepositorySchema1 string.  
@ -------------------------------------------------------------------------
@
@ -- Whenever new blobs are received into the repository, an entry
@ -- in this table records the source of the blob.
@ --
@ CREATE TABLE rcvfrom(
@   rcvid INTEGER PRIMARY KEY,      -- Received-From ID
................................................................................
@    cols TEXT,               -- A color-key specification
@    sqlcode TEXT             -- An SQL SELECT statement for this report
@ );
@
@ -- Some ticket content (such as the originators email address or contact
@ -- information) needs to be obscured to protect privacy.  This is achieved
@ -- by storing an SHA1 hash of the content.  For display, the hash is
@ -- mapped back into the original text using this table.  
@ --
@ -- This table contains sensitive information and should not be shared
@ -- with unauthorized users.
@ --
@ CREATE TABLE concealed(
@   hash TEXT PRIMARY KEY,    -- The SHA1 hash of content
@   mtime DATE,               -- Time created.  Seconds since 1970
................................................................................
;

/*
** The default reportfmt entry for the schema. This is in an extra
** script so that (configure reset) can install the default report.
*/
const char zRepositorySchemaDefaultReports[] =
@ INSERT INTO reportfmt(title,mtime,cols,sqlcode) 
@ VALUES('All Tickets',julianday('1970-01-01'),'#ffffff Key:
@ #f2dcdc Active
@ #e8e8e8 Review
@ #cfe8bd Fixed
@ #bde5d6 Tested
@ #cacae5 Deferred
@ #c8c8c8 Closed','SELECT
................................................................................
@ --
@ CREATE TABLE unsent(
@   rid INTEGER PRIMARY KEY         -- Record ID of the phantom
@ );
@
@ -- Each baseline or manifest can have one or more tags.  A tag
@ -- is defined by a row in the next table.
@ -- 
@ -- Wiki pages are tagged with "wiki-NAME" where NAME is the name of
@ -- the wiki page.  Tickets changes are tagged with "ticket-UUID" where 
@ -- UUID is the indentifier of the ticket.  Tags used to assign symbolic
@ -- names to baselines are branches are of the form "sym-NAME" where
@ -- NAME is the symbolic name.
@ --
@ CREATE TABLE tag(
@   tagid INTEGER PRIMARY KEY,       -- Numeric tag ID
@   tagname TEXT UNIQUE              -- Tag name.







|







 







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*/
#include "config.h"
#include "schema.h"

/*
** The database schema for the ~/.fossil configuration database.
*/
const char zConfigSchema[] =
@ -- This file contains the schema for the database that is kept in the
@ -- ~/.fossil file and that stores information about the users setup.
@ --
@ CREATE TABLE global_config(
@   name TEXT PRIMARY KEY,
@   value TEXT
@ );
................................................................................
#define CONTENT_SCHEMA  "2"
#define AUX_SCHEMA      "2011-04-25 19:50"

#endif /* INTERFACE */


/*
** The schema for a repository database.
**
** Schema1[] contains parts of the schema that are fixed and unchanging
** across versions.  Schema2[] contains parts of the schema that can
** change from one version to the next.  The information in Schema2[]
** is reconstructed from the information in Schema1[] by the "rebuild"
** operation.
*/
const char zRepositorySchema1[] =
@ -- The BLOB and DELTA tables contain all records held in the repository.
@ --
@ -- The BLOB.CONTENT column is always compressed using zlib.  This
@ -- column might hold the full text of the record or it might hold
@ -- a delta that is able to reconstruct the record from some other
@ -- record.  If BLOB.CONTENT holds a delta, then a DELTA table entry
@ -- will exist for the record and that entry will point to another
@ -- entry that holds the source of the delta.  Deltas can be chained.
@ --
@ -- The blob and delta tables collectively hold the "global state" of
@ -- a Fossil repository.
@ --
@ CREATE TABLE blob(
@   rid INTEGER PRIMARY KEY,        -- Record ID
@   rcvid INTEGER,                  -- Origin of this record
@   size INTEGER,                   -- Size of content. -1 for a phantom.
@   uuid TEXT UNIQUE NOT NULL,      -- SHA1 hash of the content
@   content BLOB,                   -- Compressed content of this record
................................................................................
@ );
@ CREATE INDEX delta_i1 ON delta(srcid);
@
@ -------------------------------------------------------------------------
@ -- The BLOB and DELTA tables above hold the "global state" of a Fossil
@ -- project; the stuff that is normally exchanged during "sync".  The
@ -- "local state" of a repository is contained in the remaining tables of
@ -- the zRepositorySchema1 string.
@ -------------------------------------------------------------------------
@
@ -- Whenever new blobs are received into the repository, an entry
@ -- in this table records the source of the blob.
@ --
@ CREATE TABLE rcvfrom(
@   rcvid INTEGER PRIMARY KEY,      -- Received-From ID
................................................................................
@    cols TEXT,               -- A color-key specification
@    sqlcode TEXT             -- An SQL SELECT statement for this report
@ );
@
@ -- Some ticket content (such as the originators email address or contact
@ -- information) needs to be obscured to protect privacy.  This is achieved
@ -- by storing an SHA1 hash of the content.  For display, the hash is
@ -- mapped back into the original text using this table.
@ --
@ -- This table contains sensitive information and should not be shared
@ -- with unauthorized users.
@ --
@ CREATE TABLE concealed(
@   hash TEXT PRIMARY KEY,    -- The SHA1 hash of content
@   mtime DATE,               -- Time created.  Seconds since 1970
................................................................................
;

/*
** The default reportfmt entry for the schema. This is in an extra
** script so that (configure reset) can install the default report.
*/
const char zRepositorySchemaDefaultReports[] =
@ INSERT INTO reportfmt(title,mtime,cols,sqlcode)
@ VALUES('All Tickets',julianday('1970-01-01'),'#ffffff Key:
@ #f2dcdc Active
@ #e8e8e8 Review
@ #cfe8bd Fixed
@ #bde5d6 Tested
@ #cacae5 Deferred
@ #c8c8c8 Closed','SELECT
................................................................................
@ --
@ CREATE TABLE unsent(
@   rid INTEGER PRIMARY KEY         -- Record ID of the phantom
@ );
@
@ -- Each baseline or manifest can have one or more tags.  A tag
@ -- is defined by a row in the next table.
@ --
@ -- Wiki pages are tagged with "wiki-NAME" where NAME is the name of
@ -- the wiki page.  Tickets changes are tagged with "ticket-UUID" where
@ -- UUID is the indentifier of the ticket.  Tags used to assign symbolic
@ -- names to baselines are branches are of the form "sym-NAME" where
@ -- NAME is the symbolic name.
@ --
@ CREATE TABLE tag(
@   tagid INTEGER PRIMARY KEY,       -- Numeric tag ID
@   tagname TEXT UNIQUE              -- Tag name.

Changes to src/shell.c.

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# define write_history(X)
# define stifle_history(X)
#endif

#if defined(_WIN32) || defined(WIN32)
# include <io.h>
#define isatty(h) _isatty(h)

#define access(f,m) _access((f),(m))

#undef popen
#define popen _popen
#undef pclose
#define pclose _pclose
#else
/* Make sure isatty() has a prototype.
*/
................................................................................
** An pointer to an instance of this structure is passed from
** the main program to the callback.  This is used to communicate
** state and mode information.
*/
struct callback_data {
  sqlite3 *db;           /* The database */
  int echoOn;            /* True to echo input commands */

  int statsOn;           /* True to display memory stats before each finalize */
  int cnt;               /* Number of records displayed so far */
  FILE *out;             /* Write results here */
  FILE *traceOut;        /* Output for sqlite3_trace() */
  int nErr;              /* Number of errors seen */
  int mode;              /* An output mode setting */
  int writableSchema;    /* True if PRAGMA writable_schema=ON */
................................................................................
      }

      /* echo the sql statement if echo on */
      if( pArg && pArg->echoOn ){
        const char *zStmtSql = sqlite3_sql(pStmt);
        fprintf(pArg->out, "%s\n", zStmtSql ? zStmtSql : zSql);
      }


















      /* Output TESTCTRL_EXPLAIN text of requested */
      if( pArg && pArg->mode==MODE_Explain ){
        const char *zExplain = 0;
        sqlite3_test_control(SQLITE_TESTCTRL_EXPLAIN_STMT, pStmt, &zExplain);
        if( zExplain && zExplain[0] ){
          fprintf(pArg->out, "%s", zExplain);
................................................................................
    sqlite3_exec(p->db, "RELEASE dump;", 0, 0, 0);
    fprintf(p->out, p->nErr ? "ROLLBACK; -- due to errors\n" : "COMMIT;\n");
  }else

  if( c=='e' && strncmp(azArg[0], "echo", n)==0 && nArg>1 && nArg<3 ){
    p->echoOn = booleanValue(azArg[1]);
  }else





  if( c=='e' && strncmp(azArg[0], "exit", n)==0 ){
    if( nArg>1 && (rc = (int)integerValue(azArg[1]))!=0 ) exit(rc);
    rc = 2;
  }else

  if( c=='e' && strncmp(azArg[0], "explain", n)==0 && nArg<3 ){
................................................................................
    sqlite3_snprintf(sizeof(p->separator), p->separator,
                     "%.*s", (int)sizeof(p->separator)-1, azArg[1]);
  }else

  if( c=='s' && strncmp(azArg[0], "show", n)==0 && nArg==1 ){
    int i;
    fprintf(p->out,"%9.9s: %s\n","echo", p->echoOn ? "on" : "off");

    fprintf(p->out,"%9.9s: %s\n","explain", p->explainPrev.valid ? "on" :"off");
    fprintf(p->out,"%9.9s: %s\n","headers", p->showHeader ? "on" : "off");
    fprintf(p->out,"%9.9s: %s\n","mode", modeDescr[p->mode]);
    fprintf(p->out,"%9.9s: ", "nullvalue");
      output_c_string(p->out, p->nullvalue);
      fprintf(p->out, "\n");
    fprintf(p->out,"%9.9s: %s\n","output",
................................................................................
                       "%s",cmdline_option_value(argc,argv,++i));
    }else if( strcmp(z,"-header")==0 ){
      data.showHeader = 1;
    }else if( strcmp(z,"-noheader")==0 ){
      data.showHeader = 0;
    }else if( strcmp(z,"-echo")==0 ){
      data.echoOn = 1;


    }else if( strcmp(z,"-stats")==0 ){
      data.statsOn = 1;
    }else if( strcmp(z,"-bail")==0 ){
      bail_on_error = 1;
    }else if( strcmp(z,"-version")==0 ){
      printf("%s %s\n", sqlite3_libversion(), sqlite3_sourceid());
      return 0;







>
|
>







 







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# define write_history(X)
# define stifle_history(X)
#endif

#if defined(_WIN32) || defined(WIN32)
# include <io.h>
#define isatty(h) _isatty(h)
#ifndef access
# define access(f,m) _access((f),(m))
#endif
#undef popen
#define popen _popen
#undef pclose
#define pclose _pclose
#else
/* Make sure isatty() has a prototype.
*/
................................................................................
** An pointer to an instance of this structure is passed from
** the main program to the callback.  This is used to communicate
** state and mode information.
*/
struct callback_data {
  sqlite3 *db;           /* The database */
  int echoOn;            /* True to echo input commands */
  int autoEQP;           /* Run EXPLAIN QUERY PLAN prior to seach SQL statement */
  int statsOn;           /* True to display memory stats before each finalize */
  int cnt;               /* Number of records displayed so far */
  FILE *out;             /* Write results here */
  FILE *traceOut;        /* Output for sqlite3_trace() */
  int nErr;              /* Number of errors seen */
  int mode;              /* An output mode setting */
  int writableSchema;    /* True if PRAGMA writable_schema=ON */
................................................................................
      }

      /* echo the sql statement if echo on */
      if( pArg && pArg->echoOn ){
        const char *zStmtSql = sqlite3_sql(pStmt);
        fprintf(pArg->out, "%s\n", zStmtSql ? zStmtSql : zSql);
      }

      /* Show the EXPLAIN QUERY PLAN if .eqp is on */
      if( pArg && pArg->autoEQP ){
        sqlite3_stmt *pExplain;
        char *zEQP = sqlite3_mprintf("EXPLAIN QUERY PLAN %s", sqlite3_sql(pStmt));
        rc = sqlite3_prepare_v2(db, zEQP, -1, &pExplain, 0);
        if( rc==SQLITE_OK ){
          while( sqlite3_step(pExplain)==SQLITE_ROW ){
            fprintf(pArg->out,"--EQP-- %d,", sqlite3_column_int(pExplain, 0));
            fprintf(pArg->out,"%d,", sqlite3_column_int(pExplain, 1));
            fprintf(pArg->out,"%d,", sqlite3_column_int(pExplain, 2));
            fprintf(pArg->out,"%s\n", sqlite3_column_text(pExplain, 3));
          }
        }
        sqlite3_finalize(pExplain);
        sqlite3_free(zEQP);
      }

      /* Output TESTCTRL_EXPLAIN text of requested */
      if( pArg && pArg->mode==MODE_Explain ){
        const char *zExplain = 0;
        sqlite3_test_control(SQLITE_TESTCTRL_EXPLAIN_STMT, pStmt, &zExplain);
        if( zExplain && zExplain[0] ){
          fprintf(pArg->out, "%s", zExplain);
................................................................................
    sqlite3_exec(p->db, "RELEASE dump;", 0, 0, 0);
    fprintf(p->out, p->nErr ? "ROLLBACK; -- due to errors\n" : "COMMIT;\n");
  }else

  if( c=='e' && strncmp(azArg[0], "echo", n)==0 && nArg>1 && nArg<3 ){
    p->echoOn = booleanValue(azArg[1]);
  }else

  if( c=='e' && strncmp(azArg[0], "eqp", n)==0 && nArg>1 && nArg<3 ){
    p->autoEQP = booleanValue(azArg[1]);
  }else

  if( c=='e' && strncmp(azArg[0], "exit", n)==0 ){
    if( nArg>1 && (rc = (int)integerValue(azArg[1]))!=0 ) exit(rc);
    rc = 2;
  }else

  if( c=='e' && strncmp(azArg[0], "explain", n)==0 && nArg<3 ){
................................................................................
    sqlite3_snprintf(sizeof(p->separator), p->separator,
                     "%.*s", (int)sizeof(p->separator)-1, azArg[1]);
  }else

  if( c=='s' && strncmp(azArg[0], "show", n)==0 && nArg==1 ){
    int i;
    fprintf(p->out,"%9.9s: %s\n","echo", p->echoOn ? "on" : "off");
    fprintf(p->out,"%9.9s: %s\n","eqp", p->autoEQP ? "on" : "off");
    fprintf(p->out,"%9.9s: %s\n","explain", p->explainPrev.valid ? "on" :"off");
    fprintf(p->out,"%9.9s: %s\n","headers", p->showHeader ? "on" : "off");
    fprintf(p->out,"%9.9s: %s\n","mode", modeDescr[p->mode]);
    fprintf(p->out,"%9.9s: ", "nullvalue");
      output_c_string(p->out, p->nullvalue);
      fprintf(p->out, "\n");
    fprintf(p->out,"%9.9s: %s\n","output",
................................................................................
                       "%s",cmdline_option_value(argc,argv,++i));
    }else if( strcmp(z,"-header")==0 ){
      data.showHeader = 1;
    }else if( strcmp(z,"-noheader")==0 ){
      data.showHeader = 0;
    }else if( strcmp(z,"-echo")==0 ){
      data.echoOn = 1;
    }else if( strcmp(z,"-eqp")==0 ){
      data.autoEQP = 1;
    }else if( strcmp(z,"-stats")==0 ){
      data.statsOn = 1;
    }else if( strcmp(z,"-bail")==0 ){
      bail_on_error = 1;
    }else if( strcmp(z,"-version")==0 ){
      printf("%s %s\n", sqlite3_libversion(), sqlite3_sourceid());
      return 0;

Changes to src/shun.c.

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    }
  }
  style_header("Shunned Artifacts");
  if( zUuid && P("sub") ){
    login_verify_csrf_secret();
    db_multi_exec("DELETE FROM shun WHERE uuid='%s'", zUuid);
    if( db_exists("SELECT 1 FROM blob WHERE uuid='%s'", zUuid) ){
      @ <p class="noMoreShun">Artifact 
      @ <a href="%s(g.zTop)/artifact/%s(zUuid)">%s(zUuid)</a> is no
      @ longer being shunned.</p>
    }else{
      @ <p class="noMoreShun">Artifact %s(zUuid) will no longer
      @ be shunned.  But it does not exist in the repository.  It
      @ may be necessary to rebuild the repository using the
      @ <b>fossil rebuild</b> command-line before the artifact content
................................................................................
      db_multi_exec("DELETE FROM tagxref WHERE tagid=%d", tagid);
    }
  }
  @ <p>A shunned artifact will not be pushed nor accepted in a pull and the
  @ artifact content will be purged from the repository the next time the
  @ repository is rebuilt.  A list of shunned artifacts can be seen at the
  @ bottom of this page.</p>
  @ 
  @ <a name="addshun"></a>
  @ <p>To shun an artifact, enter its artifact ID (the 40-character SHA1
  @ hash of the artifact) in the
  @ following box and press the "Shun" button.  This will cause the artifact
  @ to be removed from the repository and will prevent the artifact from being
  @ readded to the repository by subsequent sync operation.</p>
  @
................................................................................
  @
  @ <p>Warning:  Shunning should only be used to remove inappropriate content
  @ from the repository.  Inappropriate content includes such things as
  @ spam added to Wiki, files that violate copyright or patent agreements,
  @ or artifacts that by design or accident interfere with the processing
  @ of the repository.  Do not shun artifacts merely to remove them from
  @ sight - set the "hidden" tag on such artifacts instead.</p>
  @ 
  @ <blockquote>
  @ <form method="post" action="%s(g.zTop)/%s(g.zPath)"><div>
  login_insert_csrf_secret();
  @ <input type="text" name="uuid" value="%h(PD("shun",""))" size="50" />
  @ <input type="submit" name="add" value="Shun" />
  @ </div></form>
  @ </blockquote>
................................................................................
  @
  @ <blockquote>
  @ <form method="post" action="%s(g.zTop)/%s(g.zPath)"><div>
  login_insert_csrf_secret();
  @ <input type="submit" name="rebuild" value="Rebuild" />
  @ </div></form>
  @ </blockquote>
  @ 
  @ <hr /><p>Shunned Artifacts:</p>
  @ <blockquote><p>
  db_prepare(&q, 
     "SELECT uuid, EXISTS(SELECT 1 FROM blob WHERE blob.uuid=shun.uuid)"
     "  FROM shun ORDER BY uuid");
  while( db_step(&q)==SQLITE_ROW ){
    const char *zUuid = db_column_text(&q, 0);
    int stillExists = db_column_int(&q, 1);
    cnt++;
    if( stillExists ){
................................................................................
    login_needed();
  }
  style_header("Content Sources");
  if( ofst>0 ){
    style_submenu_element("Newer", "Newer", "rcvfromlist?ofst=%d",
                           ofst>30 ? ofst-30 : 0);
  }
  db_prepare(&q, 
    "SELECT rcvid, login, datetime(rcvfrom.mtime), rcvfrom.ipaddr"
    "  FROM rcvfrom LEFT JOIN user USING(uid)"
    " ORDER BY rcvid DESC LIMIT 31 OFFSET %d",
    ofst
  );
  @ <p>Whenever new artifacts are added to the repository, either by
  @ push or using the web interface, an entry is made in the RCVFROM table
................................................................................
  Stmt q;

  login_check_credentials();
  if( !g.perm.Admin ){
    login_needed();
  }
  style_header("Content Source %d", rcvid);
  db_prepare(&q, 
    "SELECT login, datetime(rcvfrom.mtime), rcvfrom.ipaddr"
    "  FROM rcvfrom LEFT JOIN user USING(uid)"
    " WHERE rcvid=%d",
    rcvid
  );
  @ <table cellspacing="15" cellpadding="0" border="0">
  @ <tr><th valign="top" align="right">rcvid:</th>







|







 







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    }
  }
  style_header("Shunned Artifacts");
  if( zUuid && P("sub") ){
    login_verify_csrf_secret();
    db_multi_exec("DELETE FROM shun WHERE uuid='%s'", zUuid);
    if( db_exists("SELECT 1 FROM blob WHERE uuid='%s'", zUuid) ){
      @ <p class="noMoreShun">Artifact
      @ <a href="%s(g.zTop)/artifact/%s(zUuid)">%s(zUuid)</a> is no
      @ longer being shunned.</p>
    }else{
      @ <p class="noMoreShun">Artifact %s(zUuid) will no longer
      @ be shunned.  But it does not exist in the repository.  It
      @ may be necessary to rebuild the repository using the
      @ <b>fossil rebuild</b> command-line before the artifact content
................................................................................
      db_multi_exec("DELETE FROM tagxref WHERE tagid=%d", tagid);
    }
  }
  @ <p>A shunned artifact will not be pushed nor accepted in a pull and the
  @ artifact content will be purged from the repository the next time the
  @ repository is rebuilt.  A list of shunned artifacts can be seen at the
  @ bottom of this page.</p>
  @
  @ <a name="addshun"></a>
  @ <p>To shun an artifact, enter its artifact ID (the 40-character SHA1
  @ hash of the artifact) in the
  @ following box and press the "Shun" button.  This will cause the artifact
  @ to be removed from the repository and will prevent the artifact from being
  @ readded to the repository by subsequent sync operation.</p>
  @
................................................................................
  @
  @ <p>Warning:  Shunning should only be used to remove inappropriate content
  @ from the repository.  Inappropriate content includes such things as
  @ spam added to Wiki, files that violate copyright or patent agreements,
  @ or artifacts that by design or accident interfere with the processing
  @ of the repository.  Do not shun artifacts merely to remove them from
  @ sight - set the "hidden" tag on such artifacts instead.</p>
  @
  @ <blockquote>
  @ <form method="post" action="%s(g.zTop)/%s(g.zPath)"><div>
  login_insert_csrf_secret();
  @ <input type="text" name="uuid" value="%h(PD("shun",""))" size="50" />
  @ <input type="submit" name="add" value="Shun" />
  @ </div></form>
  @ </blockquote>
................................................................................
  @
  @ <blockquote>
  @ <form method="post" action="%s(g.zTop)/%s(g.zPath)"><div>
  login_insert_csrf_secret();
  @ <input type="submit" name="rebuild" value="Rebuild" />
  @ </div></form>
  @ </blockquote>
  @
  @ <hr /><p>Shunned Artifacts:</p>
  @ <blockquote><p>
  db_prepare(&q,
     "SELECT uuid, EXISTS(SELECT 1 FROM blob WHERE blob.uuid=shun.uuid)"
     "  FROM shun ORDER BY uuid");
  while( db_step(&q)==SQLITE_ROW ){
    const char *zUuid = db_column_text(&q, 0);
    int stillExists = db_column_int(&q, 1);
    cnt++;
    if( stillExists ){
................................................................................
    login_needed();
  }
  style_header("Content Sources");
  if( ofst>0 ){
    style_submenu_element("Newer", "Newer", "rcvfromlist?ofst=%d",
                           ofst>30 ? ofst-30 : 0);
  }
  db_prepare(&q,
    "SELECT rcvid, login, datetime(rcvfrom.mtime), rcvfrom.ipaddr"
    "  FROM rcvfrom LEFT JOIN user USING(uid)"
    " ORDER BY rcvid DESC LIMIT 31 OFFSET %d",
    ofst
  );
  @ <p>Whenever new artifacts are added to the repository, either by
  @ push or using the web interface, an entry is made in the RCVFROM table
................................................................................
  Stmt q;

  login_check_credentials();
  if( !g.perm.Admin ){
    login_needed();
  }
  style_header("Content Source %d", rcvid);
  db_prepare(&q,
    "SELECT login, datetime(rcvfrom.mtime), rcvfrom.ipaddr"
    "  FROM rcvfrom LEFT JOIN user USING(uid)"
    " WHERE rcvid=%d",
    rcvid
  );
  @ <table cellspacing="15" cellpadding="0" border="0">
  @ <tr><th valign="top" align="right">rcvid:</th>

Changes to src/sqlite3.c.

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# define _LARGE_FILE       1
# ifndef _FILE_OFFSET_BITS
#   define _FILE_OFFSET_BITS 64
# endif
# define _LARGEFILE_SOURCE 1
#endif

































/* The public SQLite interface.  The _FILE_OFFSET_BITS macro must appear
** first in QNX.

*/
/************** Include sqlite3.h in the middle of sqliteInt.h ***************/
/************** Begin file sqlite3.h *****************************************/
/*
** 2001 September 15
**
** The author disclaims copyright to this source code.  In place of
................................................................................
**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.8.4"
#define SQLITE_VERSION_NUMBER 3008004
#define SQLITE_SOURCE_ID      "2014-02-27 15:04:13 a6690400235705ecc0d1a60dacff6ad5fb1f944a"

/*
** CAPI3REF: Run-Time Library Version Numbers
** KEYWORDS: sqlite3_version, sqlite3_sourceid
**
** These interfaces provide the same information as the [SQLITE_VERSION],
** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros
................................................................................
SQLITE_PRIVATE sqlite3_value *sqlite3VdbeGetBoundValue(Vdbe*, int, u8);
SQLITE_PRIVATE void sqlite3VdbeSetVarmask(Vdbe*, int);
#ifndef SQLITE_OMIT_TRACE
SQLITE_PRIVATE   char *sqlite3VdbeExpandSql(Vdbe*, const char*);
#endif

SQLITE_PRIVATE void sqlite3VdbeRecordUnpack(KeyInfo*,int,const void*,UnpackedRecord*);
SQLITE_PRIVATE int sqlite3VdbeRecordCompare(int,const void*,UnpackedRecord*);
SQLITE_PRIVATE UnpackedRecord *sqlite3VdbeAllocUnpackedRecord(KeyInfo *, char *, int, char **);




#ifndef SQLITE_OMIT_TRIGGER
SQLITE_PRIVATE void sqlite3VdbeLinkSubProgram(Vdbe *, SubProgram *);
#endif

/* Use SQLITE_ENABLE_COMMENTS to enable generation of extra comments on
** each VDBE opcode.
................................................................................
** Records are used to store the content of a table row and to store
** the key of an index.  A blob encoding of a record is created by
** the OP_MakeRecord opcode of the VDBE and is disassembled by the
** OP_Column opcode.
**
** This structure holds a record that has already been disassembled
** into its constituent fields.



*/
struct UnpackedRecord {
  KeyInfo *pKeyInfo;  /* Collation and sort-order information */
  u16 nField;         /* Number of entries in apMem[] */
  u8 flags;           /* Boolean settings.  UNPACKED_... below */
  Mem *aMem;          /* Values */


};

/*
** Allowed values of UnpackedRecord.flags
*/
#define UNPACKED_INCRKEY       0x01  /* Make this key an epsilon larger */
#define UNPACKED_PREFIX_MATCH  0x02  /* A prefix match is considered OK */

/*
** Each SQL index is represented in memory by an
** instance of the following structure.
**
** The columns of the table that are to be indexed are described
** by the aiColumn[] field of this structure.  For example, suppose
................................................................................
** But sqlite3SrcListShiftJoinType() later shifts the jointypes so that each
** jointype expresses the join between the table and the previous table.
**
** In the colUsed field, the high-order bit (bit 63) is set if the table
** contains more than 63 columns and the 64-th or later column is used.
*/
struct SrcList {
  u8 nSrc;        /* Number of tables or subqueries in the FROM clause */
  u8 nAlloc;      /* Number of entries allocated in a[] below */
  struct SrcList_item {
    Schema *pSchema;  /* Schema to which this item is fixed */
    char *zDatabase;  /* Name of database holding this table */
    char *zName;      /* Name of the table */
    char *zAlias;     /* The "B" part of a "A AS B" phrase.  zName is the "A" */
    Table *pTab;      /* An SQL table corresponding to zName */
    Select *pSelect;  /* A SELECT statement used in place of a table name */
................................................................................
  "OMIT_CHECK",
#endif
#ifdef SQLITE_OMIT_COMPLETE
  "OMIT_COMPLETE",
#endif
#ifdef SQLITE_OMIT_COMPOUND_SELECT
  "OMIT_COMPOUND_SELECT",



#endif
#ifdef SQLITE_OMIT_DATETIME_FUNCS
  "OMIT_DATETIME_FUNCS",
#endif
#ifdef SQLITE_OMIT_DECLTYPE
  "OMIT_DECLTYPE",
#endif
................................................................................
    int nZero;          /* Used when bit MEM_Zero is set in flags */
    FuncDef *pDef;      /* Used only when flags==MEM_Agg */
    RowSet *pRowSet;    /* Used only when flags==MEM_RowSet */
    VdbeFrame *pFrame;  /* Used when flags==MEM_Frame */
  } u;
  int n;              /* Number of characters in string value, excluding '\0' */
  u16 flags;          /* Some combination of MEM_Null, MEM_Str, MEM_Dyn, etc. */
  u8  memType;        /* Lower 5 bits of flags */
  u8  enc;            /* SQLITE_UTF8, SQLITE_UTF16BE, SQLITE_UTF16LE */
#ifdef SQLITE_DEBUG
  Mem *pScopyFrom;    /* This Mem is a shallow copy of pScopyFrom */
  void *pFiller;      /* So that sizeof(Mem) is a multiple of 8 */
#endif
  void (*xDel)(void *);  /* If not null, call this function to delete Mem.z */
  char *zMalloc;      /* Dynamic buffer allocated by sqlite3_malloc() */
................................................................................
** flags may coexist with the MEM_Str flag.
*/
#define MEM_Null      0x0001   /* Value is NULL */
#define MEM_Str       0x0002   /* Value is a string */
#define MEM_Int       0x0004   /* Value is an integer */
#define MEM_Real      0x0008   /* Value is a real number */
#define MEM_Blob      0x0010   /* Value is a BLOB */

#define MEM_RowSet    0x0020   /* Value is a RowSet object */
#define MEM_Frame     0x0040   /* Value is a VdbeFrame object */
#define MEM_Undefined 0x0080   /* Value is undefined */
#define MEM_Cleared   0x0100   /* NULL set by OP_Null, not from data */
#define MEM_TypeMask  0x01ff   /* Mask of type bits */


/* Whenever Mem contains a valid string or blob representation, one of
** the following flags must be set to determine the memory management
** policy for Mem.z.  The MEM_Term flag tells us whether or not the
** string is \000 or \u0000 terminated
*/
#define MEM_Term      0x0200   /* String rep is nul terminated */
#define MEM_Dyn       0x0400   /* Need to call sqliteFree() on Mem.z */
#define MEM_Static    0x0800   /* Mem.z points to a static string */
#define MEM_Ephem     0x1000   /* Mem.z points to an ephemeral string */
#define MEM_Agg       0x2000   /* Mem.z points to an agg function context */
#define MEM_Zero      0x4000   /* Mem.i contains count of 0s appended to blob */
#ifdef SQLITE_OMIT_INCRBLOB
  #undef MEM_Zero
  #define MEM_Zero 0x0000
................................................................................
SQLITE_PRIVATE u32 sqlite3VdbeSerialTypeLen(u32);
SQLITE_PRIVATE u32 sqlite3VdbeSerialType(Mem*, int);
SQLITE_PRIVATE u32 sqlite3VdbeSerialPut(unsigned char*, Mem*, u32);
SQLITE_PRIVATE u32 sqlite3VdbeSerialGet(const unsigned char*, u32, Mem*);
SQLITE_PRIVATE void sqlite3VdbeDeleteAuxData(Vdbe*, int, int);

int sqlite2BtreeKeyCompare(BtCursor *, const void *, int, int, int *);
SQLITE_PRIVATE int sqlite3VdbeIdxKeyCompare(VdbeCursor*,UnpackedRecord*,int*);
SQLITE_PRIVATE int sqlite3VdbeIdxRowid(sqlite3*, BtCursor *, i64 *);
SQLITE_PRIVATE int sqlite3MemCompare(const Mem*, const Mem*, const CollSeq*);
SQLITE_PRIVATE int sqlite3VdbeExec(Vdbe*);
SQLITE_PRIVATE int sqlite3VdbeList(Vdbe*);
SQLITE_PRIVATE int sqlite3VdbeHalt(Vdbe*);
SQLITE_PRIVATE int sqlite3VdbeChangeEncoding(Mem *, int);
SQLITE_PRIVATE int sqlite3VdbeMemTooBig(Mem*);
................................................................................
  if( VdbeMemDynamic(X) ) sqlite3VdbeMemReleaseExternal(X);
SQLITE_PRIVATE int sqlite3VdbeMemFinalize(Mem*, FuncDef*);
SQLITE_PRIVATE const char *sqlite3OpcodeName(int);
SQLITE_PRIVATE int sqlite3VdbeMemGrow(Mem *pMem, int n, int preserve);
SQLITE_PRIVATE int sqlite3VdbeCloseStatement(Vdbe *, int);
SQLITE_PRIVATE void sqlite3VdbeFrameDelete(VdbeFrame*);
SQLITE_PRIVATE int sqlite3VdbeFrameRestore(VdbeFrame *);
#define sqlite3VdbeMemStoreType(X)  (X)->memType = (u8)((X)->flags&0x1f)
/* void sqlite3VdbeMemStoreType(Mem *pMem); */
SQLITE_PRIVATE int sqlite3VdbeTransferError(Vdbe *p);

SQLITE_PRIVATE int sqlite3VdbeSorterInit(sqlite3 *, VdbeCursor *);
SQLITE_PRIVATE void sqlite3VdbeSorterClose(sqlite3 *, VdbeCursor *);
SQLITE_PRIVATE int sqlite3VdbeSorterRowkey(const VdbeCursor *, Mem *);
SQLITE_PRIVATE int sqlite3VdbeSorterNext(sqlite3 *, const VdbeCursor *, int *);
SQLITE_PRIVATE int sqlite3VdbeSorterRewind(sqlite3 *, const VdbeCursor *, int *);
................................................................................
#else
# define sqlite3VdbeEnter(X)
# define sqlite3VdbeLeave(X)
#endif

#ifdef SQLITE_DEBUG
SQLITE_PRIVATE void sqlite3VdbeMemAboutToChange(Vdbe*,Mem*);

#endif

#ifndef SQLITE_OMIT_FOREIGN_KEY
SQLITE_PRIVATE int sqlite3VdbeCheckFk(Vdbe *, int);
#else
# define sqlite3VdbeCheckFk(p,i) 0
#endif
................................................................................
  }
  *z = 0;
  assert( (pMem->n+(desiredEnc==SQLITE_UTF8?1:2))<=len );

  sqlite3VdbeMemRelease(pMem);
  pMem->flags &= ~(MEM_Static|MEM_Dyn|MEM_Ephem);
  pMem->enc = desiredEnc;
  pMem->flags |= (MEM_Term|MEM_Dyn);
  pMem->z = (char*)zOut;
  pMem->zMalloc = pMem->z;

translate_out:
#if defined(TRANSLATE_TRACE) && defined(SQLITE_DEBUG)
  {
    char zBuf[100];
................................................................................
  sqlite3VdbeChangeEncoding(&m, SQLITE_UTF8);
  if( db->mallocFailed ){
    sqlite3VdbeMemRelease(&m);
    m.z = 0;
  }
  assert( (m.flags & MEM_Term)!=0 || db->mallocFailed );
  assert( (m.flags & MEM_Str)!=0 || db->mallocFailed );
  assert( (m.flags & MEM_Dyn)!=0 || db->mallocFailed );
  assert( m.z || db->mallocFailed );
  return m.z;
}

/*
** zIn is a UTF-16 encoded unicode string at least nChar characters long.
** Return the number of bytes in the first nChar unicode characters
................................................................................
  BtCursor *pCur,          /* The cursor to be moved */
  UnpackedRecord *pIdxKey, /* Unpacked index key */
  i64 intKey,              /* The table key */
  int biasRight,           /* If true, bias the search to the high end */
  int *pRes                /* Write search results here */
){
  int rc;


  assert( cursorHoldsMutex(pCur) );
  assert( sqlite3_mutex_held(pCur->pBtree->db->mutex) );
  assert( pRes );
  assert( (pIdxKey==0)==(pCur->pKeyInfo==0) );

  /* If the cursor is already positioned at the point we are trying
................................................................................
      return SQLITE_OK;
    }
    if( pCur->atLast && pCur->info.nKey<intKey ){
      *pRes = -1;
      return SQLITE_OK;
    }
  }











  rc = moveToRoot(pCur);
  if( rc ){
    return rc;
  }
  assert( pCur->pgnoRoot==0 || pCur->apPage[pCur->iPage] );
  assert( pCur->pgnoRoot==0 || pCur->apPage[pCur->iPage]->isInit );
................................................................................
    assert( pPage->nCell>0 );
    assert( pPage->intKey==(pIdxKey==0) );
    lwr = 0;
    upr = pPage->nCell-1;
    assert( biasRight==0 || biasRight==1 );
    idx = upr>>(1-biasRight); /* idx = biasRight ? upr : (lwr+upr)/2; */
    pCur->aiIdx[pCur->iPage] = (u16)idx;
    if( pPage->intKey ){
      for(;;){
        i64 nCellKey;
        pCell = findCell(pPage, idx) + pPage->childPtrSize;
        if( pPage->hasData ){
          while( 0x80 <= *(pCell++) ){
            if( pCell>=pPage->aDataEnd ) return SQLITE_CORRUPT_BKPT;
          }
................................................................................
        */
        nCell = pCell[0];
        if( nCell<=pPage->max1bytePayload ){
          /* This branch runs if the record-size field of the cell is a
          ** single byte varint and the record fits entirely on the main
          ** b-tree page.  */
          testcase( pCell+nCell+1==pPage->aDataEnd );
          c = sqlite3VdbeRecordCompare(nCell, (void*)&pCell[1], pIdxKey);
        }else if( !(pCell[1] & 0x80) 
          && (nCell = ((nCell&0x7f)<<7) + pCell[1])<=pPage->maxLocal
        ){
          /* The record-size field is a 2 byte varint and the record 
          ** fits entirely on the main b-tree page.  */
          testcase( pCell+nCell+2==pPage->aDataEnd );
          c = sqlite3VdbeRecordCompare(nCell, (void*)&pCell[2], pIdxKey);
        }else{
          /* The record flows over onto one or more overflow pages. In
          ** this case the whole cell needs to be parsed, a buffer allocated
          ** and accessPayload() used to retrieve the record into the
          ** buffer before VdbeRecordCompare() can be called. */
          void *pCellKey;
          u8 * const pCellBody = pCell - pPage->childPtrSize;
................................................................................
          }
          pCur->aiIdx[pCur->iPage] = (u16)idx;
          rc = accessPayload(pCur, 0, nCell, (unsigned char*)pCellKey, 0);
          if( rc ){
            sqlite3_free(pCellKey);
            goto moveto_finish;
          }
          c = sqlite3VdbeRecordCompare(nCell, pCellKey, pIdxKey);
          sqlite3_free(pCellKey);
        }
        if( c<0 ){
          lwr = idx+1;
        }else if( c>0 ){
          upr = idx-1;
        }else{
................................................................................
*************************************************************************
**
** This file contains code use to manipulate "Mem" structure.  A "Mem"
** stores a single value in the VDBE.  Mem is an opaque structure visible
** only within the VDBE.  Interface routines refer to a Mem using the
** name sqlite_value
*/





































/*
** If pMem is an object with a valid string representation, this routine
** ensures the internal encoding for the string representation is
** 'desiredEnc', one of SQLITE_UTF8, SQLITE_UTF16LE or SQLITE_UTF16BE.
**
** If pMem is not a string object, or the encoding of the string
................................................................................
**
** If the bPreserve argument is true, then copy of the content of
** pMem->z into the new allocation.  pMem must be either a string or
** blob if bPreserve is true.  If bPreserve is false, any prior content
** in pMem->z is discarded.
*/
SQLITE_PRIVATE int sqlite3VdbeMemGrow(Mem *pMem, int n, int bPreserve){
  assert( 1 >=
    ((pMem->zMalloc && pMem->zMalloc==pMem->z) ? 1 : 0) +
    (((pMem->flags&MEM_Dyn)&&pMem->xDel) ? 1 : 0) + 
    ((pMem->flags&MEM_Ephem) ? 1 : 0) + 
    ((pMem->flags&MEM_Static) ? 1 : 0)
  );
  assert( (pMem->flags&MEM_RowSet)==0 );

  /* If the bPreserve flag is set to true, then the memory cell must already
  ** contain a valid string or blob value.  */
  assert( bPreserve==0 || pMem->flags&(MEM_Blob|MEM_Str) );
  testcase( bPreserve && pMem->z==0 );

................................................................................
      pMem->z = pMem->zMalloc = sqlite3DbReallocOrFree(pMem->db, pMem->z, n);
      bPreserve = 0;
    }else{
      sqlite3DbFree(pMem->db, pMem->zMalloc);
      pMem->zMalloc = sqlite3DbMallocRaw(pMem->db, n);
    }
    if( pMem->zMalloc==0 ){
      sqlite3VdbeMemRelease(pMem);

      pMem->flags = MEM_Null;  
      return SQLITE_NOMEM;
    }
  }

  if( pMem->z && bPreserve && pMem->z!=pMem->zMalloc ){
    memcpy(pMem->zMalloc, pMem->z, pMem->n);
  }
  if( (pMem->flags&MEM_Dyn)!=0 && pMem->xDel ){
    assert( pMem->xDel!=SQLITE_DYNAMIC );
    pMem->xDel((void *)(pMem->z));
  }

  pMem->z = pMem->zMalloc;
  pMem->flags &= ~(MEM_Ephem|MEM_Static);
  pMem->xDel = 0;
  return SQLITE_OK;
}

/*
** Make the given Mem object MEM_Dyn.  In other words, make it so
** that any TEXT or BLOB content is stored in memory obtained from
................................................................................
*/
SQLITE_PRIVATE void sqlite3VdbeMemReleaseExternal(Mem *p){
  assert( p->db==0 || sqlite3_mutex_held(p->db->mutex) );
  if( p->flags&MEM_Agg ){
    sqlite3VdbeMemFinalize(p, p->u.pDef);
    assert( (p->flags & MEM_Agg)==0 );
    sqlite3VdbeMemRelease(p);
  }else if( p->flags&MEM_Dyn && p->xDel ){
    assert( (p->flags&MEM_RowSet)==0 );
    assert( p->xDel!=SQLITE_DYNAMIC );
    p->xDel((void *)p->z);
    p->xDel = 0;
  }else if( p->flags&MEM_RowSet ){
    sqlite3RowSetClear(p->u.pRowSet);
  }else if( p->flags&MEM_Frame ){
    sqlite3VdbeMemSetNull(p);
  }
}

/*
** Release any memory held by the Mem. This may leave the Mem in an
** inconsistent state, for example with (Mem.z==0) and
** (Mem.memType==MEM_Str).
*/
SQLITE_PRIVATE void sqlite3VdbeMemRelease(Mem *p){

  VdbeMemRelease(p);
  if( p->zMalloc ){
    sqlite3DbFree(p->db, p->zMalloc);
    p->zMalloc = 0;
  }
  p->z = 0;
  assert( p->xDel==0 );  /* Zeroed by VdbeMemRelease() above */
................................................................................
    pFrame->pParent = pFrame->v->pDelFrame;
    pFrame->v->pDelFrame = pFrame;
  }
  if( pMem->flags & MEM_RowSet ){
    sqlite3RowSetClear(pMem->u.pRowSet);
  }
  MemSetTypeFlag(pMem, MEM_Null);
  pMem->memType = MEM_Null;
}
SQLITE_PRIVATE void sqlite3ValueSetNull(sqlite3_value *p){
  sqlite3VdbeMemSetNull((Mem*)p); 
}

/*
** Delete any previous value and set the value to be a BLOB of length
** n containing all zeros.
*/
SQLITE_PRIVATE void sqlite3VdbeMemSetZeroBlob(Mem *pMem, int n){
  sqlite3VdbeMemRelease(pMem);
  pMem->flags = MEM_Blob|MEM_Zero;
  pMem->memType = MEM_Blob;
  pMem->n = 0;
  if( n<0 ) n = 0;
  pMem->u.nZero = n;
  pMem->enc = SQLITE_UTF8;

#ifdef SQLITE_OMIT_INCRBLOB
  sqlite3VdbeMemGrow(pMem, n, 0);
................................................................................
** Delete any previous value and set the value stored in *pMem to val,
** manifest type INTEGER.
*/
SQLITE_PRIVATE void sqlite3VdbeMemSetInt64(Mem *pMem, i64 val){
  sqlite3VdbeMemRelease(pMem);
  pMem->u.i = val;
  pMem->flags = MEM_Int;
  pMem->memType = MEM_Int;
}

#ifndef SQLITE_OMIT_FLOATING_POINT
/*
** Delete any previous value and set the value stored in *pMem to val,
** manifest type REAL.
*/
................................................................................
SQLITE_PRIVATE void sqlite3VdbeMemSetDouble(Mem *pMem, double val){
  if( sqlite3IsNaN(val) ){
    sqlite3VdbeMemSetNull(pMem);
  }else{
    sqlite3VdbeMemRelease(pMem);
    pMem->r = val;
    pMem->flags = MEM_Real;
    pMem->memType = MEM_Real;
  }
}
#endif

/*
** Delete any previous value and set the value of pMem to be an
** empty boolean index.
................................................................................
SQLITE_PRIVATE int sqlite3VdbeMemCopy(Mem *pTo, const Mem *pFrom){
  int rc = SQLITE_OK;

  assert( (pFrom->flags & MEM_RowSet)==0 );
  VdbeMemRelease(pTo);
  memcpy(pTo, pFrom, MEMCELLSIZE);
  pTo->flags &= ~MEM_Dyn;


  if( pTo->flags&(MEM_Str|MEM_Blob) ){
    if( 0==(pFrom->flags&MEM_Static) ){
      pTo->flags |= MEM_Ephem;
      rc = sqlite3VdbeMemMakeWriteable(pTo);
    }
  }
................................................................................
    pMem->xDel = xDel;
    flags |= ((xDel==SQLITE_STATIC)?MEM_Static:MEM_Dyn);
  }

  pMem->n = nByte;
  pMem->flags = flags;
  pMem->enc = (enc==0 ? SQLITE_UTF8 : enc);
  pMem->memType = flags&0x1f;

#ifndef SQLITE_OMIT_UTF16
  if( pMem->enc!=SQLITE_UTF8 && sqlite3VdbeMemHandleBom(pMem) ){
    return SQLITE_NOMEM;
  }
#endif

................................................................................
  if( nByte>iLimit ){
    return SQLITE_TOOBIG;
  }

  return SQLITE_OK;
}

/*
** Compare the values contained by the two memory cells, returning
** negative, zero or positive if pMem1 is less than, equal to, or greater
** than pMem2. Sorting order is NULL's first, followed by numbers (integers
** and reals) sorted numerically, followed by text ordered by the collating
** sequence pColl and finally blob's ordered by memcmp().
**
** Two NULL values are considered equal by this function.
*/
SQLITE_PRIVATE int sqlite3MemCompare(const Mem *pMem1, const Mem *pMem2, const CollSeq *pColl){
  int rc;
  int f1, f2;
  int combined_flags;

  f1 = pMem1->flags;
  f2 = pMem2->flags;
  combined_flags = f1|f2;
  assert( (combined_flags & MEM_RowSet)==0 );
 
  /* If one value is NULL, it is less than the other. If both values
  ** are NULL, return 0.
  */
  if( combined_flags&MEM_Null ){
    return (f2&MEM_Null) - (f1&MEM_Null);
  }

  /* If one value is a number and the other is not, the number is less.
  ** If both are numbers, compare as reals if one is a real, or as integers
  ** if both values are integers.
  */
  if( combined_flags&(MEM_Int|MEM_Real) ){
    double r1, r2;
    if( (f1 & f2 & MEM_Int)!=0 ){
      if( pMem1->u.i < pMem2->u.i ) return -1;
      if( pMem1->u.i > pMem2->u.i ) return 1;
      return 0;
    }
    if( (f1&MEM_Real)!=0 ){
      r1 = pMem1->r;
    }else if( (f1&MEM_Int)!=0 ){
      r1 = (double)pMem1->u.i;
    }else{
      return 1;
    }
    if( (f2&MEM_Real)!=0 ){
      r2 = pMem2->r;
    }else if( (f2&MEM_Int)!=0 ){
      r2 = (double)pMem2->u.i;
    }else{
      return -1;
    }
    if( r1<r2 ) return -1;
    if( r1>r2 ) return 1;
    return 0;
  }

  /* If one value is a string and the other is a blob, the string is less.
  ** If both are strings, compare using the collating functions.
  */
  if( combined_flags&MEM_Str ){
    if( (f1 & MEM_Str)==0 ){
      return 1;
    }
    if( (f2 & MEM_Str)==0 ){
      return -1;
    }

    assert( pMem1->enc==pMem2->enc );
    assert( pMem1->enc==SQLITE_UTF8 || 
            pMem1->enc==SQLITE_UTF16LE || pMem1->enc==SQLITE_UTF16BE );

    /* The collation sequence must be defined at this point, even if
    ** the user deletes the collation sequence after the vdbe program is
    ** compiled (this was not always the case).
    */
    assert( !pColl || pColl->xCmp );

    if( pColl ){
      if( pMem1->enc==pColl->enc ){
        /* The strings are already in the correct encoding.  Call the
        ** comparison function directly */
        return pColl->xCmp(pColl->pUser,pMem1->n,pMem1->z,pMem2->n,pMem2->z);
      }else{
        const void *v1, *v2;
        int n1, n2;
        Mem c1;
        Mem c2;
        memset(&c1, 0, sizeof(c1));
        memset(&c2, 0, sizeof(c2));
        sqlite3VdbeMemShallowCopy(&c1, pMem1, MEM_Ephem);
        sqlite3VdbeMemShallowCopy(&c2, pMem2, MEM_Ephem);
        v1 = sqlite3ValueText((sqlite3_value*)&c1, pColl->enc);
        n1 = v1==0 ? 0 : c1.n;
        v2 = sqlite3ValueText((sqlite3_value*)&c2, pColl->enc);
        n2 = v2==0 ? 0 : c2.n;
        rc = pColl->xCmp(pColl->pUser, n1, v1, n2, v2);
        sqlite3VdbeMemRelease(&c1);
        sqlite3VdbeMemRelease(&c2);
        return rc;
      }
    }
    /* If a NULL pointer was passed as the collate function, fall through
    ** to the blob case and use memcmp().  */
  }
 
  /* Both values must be blobs.  Compare using memcmp().  */
  rc = memcmp(pMem1->z, pMem2->z, (pMem1->n>pMem2->n)?pMem2->n:pMem1->n);
  if( rc==0 ){
    rc = pMem1->n - pMem2->n;
  }
  return rc;
}

/*
** Move data out of a btree key or data field and into a Mem structure.
** The data or key is taken from the entry that pCur is currently pointing
** to.  offset and amt determine what portion of the data or key to retrieve.
** key is true to get the key or false to get data.  The result is written
** into the pMem element.
**
................................................................................
  }
  assert( zData!=0 );

  if( offset+amt<=available ){
    sqlite3VdbeMemRelease(pMem);
    pMem->z = &zData[offset];
    pMem->flags = MEM_Blob|MEM_Ephem;

  }else if( SQLITE_OK==(rc = sqlite3VdbeMemGrow(pMem, amt+2, 0)) ){
    pMem->flags = MEM_Blob|MEM_Dyn|MEM_Term;
    pMem->enc = 0;
    pMem->memType = MEM_Blob;
    if( key ){
      rc = sqlite3BtreeKey(pCur, offset, amt, pMem->z);
    }else{
      rc = sqlite3BtreeData(pCur, offset, amt, pMem->z);
    }

    pMem->z[amt] = 0;
    pMem->z[amt+1] = 0;
    if( rc!=SQLITE_OK ){



      sqlite3VdbeMemRelease(pMem);
    }
  }
  pMem->n = (int)amt;

  return rc;
}

/* This function is only available internally, it is not part of the
** external API. It works in a similar way to sqlite3_value_text(),
** except the data returned is in the encoding specified by the second
................................................................................
/*
** Create a new sqlite3_value object.
*/
SQLITE_PRIVATE sqlite3_value *sqlite3ValueNew(sqlite3 *db){
  Mem *p = sqlite3DbMallocZero(db, sizeof(*p));
  if( p ){
    p->flags = MEM_Null;
    p->memType = MEM_Null;
    p->db = db;
  }
  return p;
}

/*
** Context object passed by sqlite3Stat4ProbeSetValue() through to 
................................................................................
      nByte = sizeof(Mem) * nCol + ROUND8(sizeof(UnpackedRecord));
      pRec = (UnpackedRecord*)sqlite3DbMallocZero(db, nByte);
      if( pRec ){
        pRec->pKeyInfo = sqlite3KeyInfoOfIndex(p->pParse, pIdx);
        if( pRec->pKeyInfo ){
          assert( pRec->pKeyInfo->nField+pRec->pKeyInfo->nXField==nCol );
          assert( pRec->pKeyInfo->enc==ENC(db) );
          pRec->flags = UNPACKED_PREFIX_MATCH;
          pRec->aMem = (Mem *)((u8*)pRec + ROUND8(sizeof(UnpackedRecord)));
          for(i=0; i<nCol; i++){
            pRec->aMem[i].flags = MEM_Null;
            pRec->aMem[i].memType = MEM_Null;
            pRec->aMem[i].db = db;
          }
        }else{
          sqlite3DbFree(db, pRec);
          pRec = 0;
        }
      }
................................................................................
    if( pVal==0 ) goto no_mem;
    if( ExprHasProperty(pExpr, EP_IntValue) ){
      sqlite3VdbeMemSetInt64(pVal, (i64)pExpr->u.iValue*negInt);
    }else{
      zVal = sqlite3MPrintf(db, "%s%s", zNeg, pExpr->u.zToken);
      if( zVal==0 ) goto no_mem;
      sqlite3ValueSetStr(pVal, -1, zVal, SQLITE_UTF8, SQLITE_DYNAMIC);
      if( op==TK_FLOAT ) pVal->memType = MEM_Real;
    }
    if( (op==TK_INTEGER || op==TK_FLOAT ) && affinity==SQLITE_AFF_NONE ){
      sqlite3ValueApplyAffinity(pVal, SQLITE_AFF_NUMERIC, SQLITE_UTF8);
    }else{
      sqlite3ValueApplyAffinity(pVal, affinity, SQLITE_UTF8);
    }
    if( pVal->flags & (MEM_Int|MEM_Real) ) pVal->flags &= ~MEM_Str;
................................................................................
  }else if( op==TK_UMINUS ) {
    /* This branch happens for multiple negative signs.  Ex: -(-5) */
    if( SQLITE_OK==sqlite3ValueFromExpr(db,pExpr->pLeft,enc,affinity,&pVal) 
     && pVal!=0
    ){
      sqlite3VdbeMemNumerify(pVal);
      if( pVal->u.i==SMALLEST_INT64 ){
        pVal->flags &= MEM_Int;
        pVal->flags |= MEM_Real;
        pVal->r = (double)LARGEST_INT64;
      }else{
        pVal->u.i = -pVal->u.i;
      }
      pVal->r = -pVal->r;
      sqlite3ValueApplyAffinity(pVal, affinity, enc);
    }
  }else if( op==TK_NULL ){
................................................................................
    nVal = sqlite3Strlen30(zVal)-1;
    assert( zVal[nVal]=='\'' );
    sqlite3VdbeMemSetStr(pVal, sqlite3HexToBlob(db, zVal, nVal), nVal/2,
                         0, SQLITE_DYNAMIC);
  }
#endif

  if( pVal ){
    sqlite3VdbeMemStoreType(pVal);
  }
  *ppVal = pVal;
  return rc;

no_mem:
  db->mallocFailed = 1;
  sqlite3DbFree(db, zVal);
  assert( *ppVal==0 );
................................................................................
      pVal = valueNew(db, &alloc);
      if( pVal ){
        rc = sqlite3VdbeMemCopy((Mem*)pVal, &v->aVar[iBindVar-1]);
        if( rc==SQLITE_OK ){
          sqlite3ValueApplyAffinity(pVal, affinity, ENC(db));
        }
        pVal->db = pParse->db;
        sqlite3VdbeMemStoreType((Mem*)pVal);
      }
    }
  }else{
    rc = valueFromExpr(db, pExpr, ENC(db), affinity, &pVal, &alloc);
  }
  *pbOk = (pVal!=0);

................................................................................
      for(pEnd=&p[N]; p<pEnd; p++){
        sqlite3DbFree(db, p->zMalloc);
      }
      return;
    }
    for(pEnd=&p[N]; p<pEnd; p++){
      assert( (&p[1])==pEnd || p[0].db==p[1].db );


      /* This block is really an inlined version of sqlite3VdbeMemRelease()
      ** that takes advantage of the fact that the memory cell value is 
      ** being set to NULL after releasing any dynamic resources.
      **
      ** The justification for duplicating code is that according to 
      ** callgrind, this causes a certain test case to hit the CPU 4.7 
................................................................................
      for(j=0; i>=apSub[j]->nOp; j++){
        i -= apSub[j]->nOp;
      }
      pOp = &apSub[j]->aOp[i];
    }
    if( p->explain==1 ){
      pMem->flags = MEM_Int;
      pMem->memType = MEM_Int;
      pMem->u.i = i;                                /* Program counter */
      pMem++;
  
      pMem->flags = MEM_Static|MEM_Str|MEM_Term;
      pMem->z = (char*)sqlite3OpcodeName(pOp->opcode); /* Opcode */
      assert( pMem->z!=0 );
      pMem->n = sqlite3Strlen30(pMem->z);
      pMem->memType = MEM_Str;
      pMem->enc = SQLITE_UTF8;
      pMem++;

      /* When an OP_Program opcode is encounter (the only opcode that has
      ** a P4_SUBPROGRAM argument), expand the size of the array of subprograms
      ** kept in p->aMem[9].z to hold the new program - assuming this subprogram
      ** has not already been seen.
................................................................................
          pSub->n = nSub*sizeof(SubProgram*);
        }
      }
    }

    pMem->flags = MEM_Int;
    pMem->u.i = pOp->p1;                          /* P1 */
    pMem->memType = MEM_Int;
    pMem++;

    pMem->flags = MEM_Int;
    pMem->u.i = pOp->p2;                          /* P2 */
    pMem->memType = MEM_Int;
    pMem++;

    pMem->flags = MEM_Int;
    pMem->u.i = pOp->p3;                          /* P3 */
    pMem->memType = MEM_Int;
    pMem++;

    if( sqlite3VdbeMemGrow(pMem, 32, 0) ){            /* P4 */
      assert( p->db->mallocFailed );
      return SQLITE_ERROR;
    }
    pMem->flags = MEM_Dyn|MEM_Str|MEM_Term;
    zP4 = displayP4(pOp, pMem->z, 32);
    if( zP4!=pMem->z ){
      sqlite3VdbeMemSetStr(pMem, zP4, -1, SQLITE_UTF8, 0);
    }else{
      assert( pMem->z!=0 );
      pMem->n = sqlite3Strlen30(pMem->z);
      pMem->enc = SQLITE_UTF8;
    }
    pMem->memType = MEM_Str;
    pMem++;

    if( p->explain==1 ){
      if( sqlite3VdbeMemGrow(pMem, 4, 0) ){
        assert( p->db->mallocFailed );
        return SQLITE_ERROR;
      }
      pMem->flags = MEM_Dyn|MEM_Str|MEM_Term;
      pMem->n = 2;
      sqlite3_snprintf(3, pMem->z, "%.2x", pOp->p5);   /* P5 */
      pMem->memType = MEM_Str;
      pMem->enc = SQLITE_UTF8;
      pMem++;
  
#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
      if( sqlite3VdbeMemGrow(pMem, 500, 0) ){
        assert( p->db->mallocFailed );
        return SQLITE_ERROR;
      }
      pMem->flags = MEM_Dyn|MEM_Str|MEM_Term;
      pMem->n = displayComment(pOp, zP4, pMem->z, 500);
      pMem->memType = MEM_Str;
      pMem->enc = SQLITE_UTF8;
#else
      pMem->flags = MEM_Null;                       /* Comment */
      pMem->memType = MEM_Null;
#endif
    }

    p->nResColumn = 8 - 4*(p->explain-1);
    p->pResultSet = &p->aMem[1];
    p->rc = SQLITE_OK;
    rc = SQLITE_ROW;
................................................................................
    return len;
  }

  /* NULL or constants 0 or 1 */
  return 0;
}









/*
** Deserialize the data blob pointed to by buf as serial type serial_type
** and store the result in pMem.  Return the number of bytes read.
*/ 
SQLITE_PRIVATE u32 sqlite3VdbeSerialGet(
  const unsigned char *buf,     /* Buffer to deserialize from */
  u32 serial_type,              /* Serial type to deserialize */
  Mem *pMem                     /* Memory cell to write value into */
){
  u64 x;
  u32 y;
  int i;
  switch( serial_type ){
    case 10:   /* Reserved for future use */
    case 11:   /* Reserved for future use */
    case 0: {  /* NULL */
      pMem->flags = MEM_Null;
      break;
    }
    case 1: { /* 1-byte signed integer */
      pMem->u.i = (signed char)buf[0];
      pMem->flags = MEM_Int;
      return 1;
    }
    case 2: { /* 2-byte signed integer */
      i = 256*(signed char)buf[0] | buf[1];
      pMem->u.i = (i64)i;
      pMem->flags = MEM_Int;
      return 2;
    }
    case 3: { /* 3-byte signed integer */
      i = 65536*(signed char)buf[0] | (buf[1]<<8) | buf[2];
      pMem->u.i = (i64)i;
      pMem->flags = MEM_Int;
      return 3;
    }
    case 4: { /* 4-byte signed integer */
      y = ((unsigned)buf[0]<<24) | (buf[1]<<16) | (buf[2]<<8) | buf[3];
      pMem->u.i = (i64)*(int*)&y;
      pMem->flags = MEM_Int;
      return 4;
    }
    case 5: { /* 6-byte signed integer */
      x = 256*(signed char)buf[0] + buf[1];
      y = ((unsigned)buf[2]<<24) | (buf[3]<<16) | (buf[4]<<8) | buf[5];
      x = (x<<32) | y;
      pMem->u.i = *(i64*)&x;
      pMem->flags = MEM_Int;
      return 6;
    }
    case 6:   /* 8-byte signed integer */
    case 7: { /* IEEE floating point */
#if !defined(NDEBUG) && !defined(SQLITE_OMIT_FLOATING_POINT)
      /* Verify that integers and floating point values use the same
................................................................................
      */
      static const u64 t1 = ((u64)0x3ff00000)<<32;
      static const double r1 = 1.0;
      u64 t2 = t1;
      swapMixedEndianFloat(t2);
      assert( sizeof(r1)==sizeof(t2) && memcmp(&r1, &t2, sizeof(r1))==0 );
#endif
      x = ((unsigned)buf[0]<<24) | (buf[1]<<16) | (buf[2]<<8) | buf[3];
      y = ((unsigned)buf[4]<<24) | (buf[5]<<16) | (buf[6]<<8) | buf[7];
      x = (x<<32) | y;
      if( serial_type==6 ){
        pMem->u.i = *(i64*)&x;
        pMem->flags = MEM_Int;
      }else{
        assert( sizeof(x)==8 && sizeof(pMem->r)==8 );
        swapMixedEndianFloat(x);
................................................................................
  const unsigned char *aKey = (const unsigned char *)pKey;
  int d; 
  u32 idx;                        /* Offset in aKey[] to read from */
  u16 u;                          /* Unsigned loop counter */
  u32 szHdr;
  Mem *pMem = p->aMem;

  p->flags = 0;
  assert( EIGHT_BYTE_ALIGNMENT(pMem) );
  idx = getVarint32(aKey, szHdr);
  d = szHdr;
  u = 0;
  while( idx<szHdr && u<p->nField && d<=nKey ){
    u32 serial_type;

................................................................................
    pMem++;
    u++;
  }
  assert( u<=pKeyInfo->nField + 1 );
  p->nField = u;
}


/*
** This function compares the two table rows or index records
** specified by {nKey1, pKey1} and pPKey2.  It returns a negative, zero
** or positive integer if key1 is less than, equal to or 
** greater than key2.  The {nKey1, pKey1} key must be a blob
** created by th OP_MakeRecord opcode of the VDBE.  The pPKey2
** key must be a parsed key such as obtained from
** sqlite3VdbeParseRecord.
**
** Key1 and Key2 do not have to contain the same number of fields.
** The key with fewer fields is usually compares less than the 
** longer key.  However if the UNPACKED_INCRKEY flags in pPKey2 is set
** and the common prefixes are equal, then key1 is less than key2.
** Or if the UNPACKED_MATCH_PREFIX flag is set and the prefixes are
** equal, then the keys are considered to be equal and
** the parts beyond the common prefix are ignored.
*/
SQLITE_PRIVATE int sqlite3VdbeRecordCompare(
  int nKey1, const void *pKey1, /* Left key */
  UnpackedRecord *pPKey2        /* Right key */
){
  u32 d1;            /* Offset into aKey[] of next data element */
  u32 idx1;          /* Offset into aKey[] of next header element */
  u32 szHdr1;        /* Number of bytes in header */
  int i = 0;
  int rc = 0;
  const unsigned char *aKey1 = (const unsigned char *)pKey1;
................................................................................
  /* No memory allocation is ever used on mem1.  Prove this using
  ** the following assert().  If the assert() fails, it indicates a
  ** memory leak and a need to call sqlite3VdbeMemRelease(&mem1).
  */
  assert( mem1.zMalloc==0 );

  /* rc==0 here means that one of the keys ran out of fields and
  ** all the fields up to that point were equal. If the UNPACKED_INCRKEY
  ** flag is set, then break the tie by treating key2 as larger.
  ** If the UPACKED_PREFIX_MATCH flag is set, then keys with common prefixes
  ** are considered to be equal.  Otherwise, the longer key is the 

  ** larger.  As it happens, the pPKey2 will always be the longer
  ** if there is a difference.






  */




















































































































  assert( rc==0 );
  if( pPKey2->flags & UNPACKED_INCRKEY ){







































































































    rc = -1;
  }else if( pPKey2->flags & UNPACKED_PREFIX_MATCH ){
    /* Leave rc==0 */













  }else if( idx1<szHdr1 ){
    rc = 1;
  }





















































































  return rc;
}
 





















































































































































































































/*
** pCur points at an index entry created using the OP_MakeRecord opcode.
** Read the rowid (the last field in the record) and store it in *rowid.
** Return SQLITE_OK if everything works, or an error code otherwise.
**
** pCur might be pointing to text obtained from a corrupt database file.
................................................................................
**
** pUnpacked is either created without a rowid or is truncated so that it
** omits the rowid at the end.  The rowid at the end of the index entry
** is ignored as well.  Hence, this routine only compares the prefixes 
** of the keys prior to the final rowid, not the entire key.
*/
SQLITE_PRIVATE int sqlite3VdbeIdxKeyCompare(
  VdbeCursor *pC,             /* The cursor to compare against */
  UnpackedRecord *pUnpacked,  /* Unpacked version of key to compare against */
  int *res                    /* Write the comparison result here */
){
  i64 nCellKey = 0;
  int rc;
  BtCursor *pCur = pC->pCursor;
  Mem m;

  assert( sqlite3BtreeCursorIsValid(pCur) );
  VVA_ONLY(rc =) sqlite3BtreeKeySize(pCur, &nCellKey);
  assert( rc==SQLITE_OK );    /* pCur is always valid so KeySize cannot fail */
  /* nCellKey will always be between 0 and 0xffffffff because of the say
  ** that btreeParseCellPtr() and sqlite3GetVarint32() are implemented */
  if( nCellKey<=0 || nCellKey>0x7fffffff ){
    *res = 0;
    return SQLITE_CORRUPT_BKPT;
  }
  memset(&m, 0, sizeof(m));
  rc = sqlite3VdbeMemFromBtree(pC->pCursor, 0, (u32)nCellKey, 1, &m);
  if( rc ){
    return rc;
  }
  assert( pUnpacked->flags & UNPACKED_PREFIX_MATCH );
  *res = sqlite3VdbeRecordCompare(m.n, m.z, pUnpacked);
  sqlite3VdbeMemRelease(&m);
  return SQLITE_OK;
}

/*
** This routine sets the value to be returned by subsequent calls to
** sqlite3_changes() on the database handle 'db'. 
................................................................................
  if( v ){
    Mem *pMem = &v->aVar[iVar-1];
    if( 0==(pMem->flags & MEM_Null) ){
      sqlite3_value *pRet = sqlite3ValueNew(v->db);
      if( pRet ){
        sqlite3VdbeMemCopy((Mem *)pRet, pMem);
        sqlite3ValueApplyAffinity(pRet, aff, SQLITE_UTF8);
        sqlite3VdbeMemStoreType((Mem *)pRet);
      }
      return pRet;
    }
  }
  return 0;
}

................................................................................
** The following routines extract information from a Mem or sqlite3_value
** structure.
*/
SQLITE_API const void *sqlite3_value_blob(sqlite3_value *pVal){
  Mem *p = (Mem*)pVal;
  if( p->flags & (MEM_Blob|MEM_Str) ){
    sqlite3VdbeMemExpandBlob(p);
    p->flags &= ~MEM_Str;
    p->flags |= MEM_Blob;
    return p->n ? p->z : 0;
  }else{
    return sqlite3_value_text(pVal);
  }
}
SQLITE_API int sqlite3_value_bytes(sqlite3_value *pVal){
................................................................................
     SQLITE_FLOAT,    /* 0x1a */
     SQLITE_NULL,     /* 0x1b */
     SQLITE_INTEGER,  /* 0x1c */
     SQLITE_NULL,     /* 0x1d */
     SQLITE_INTEGER,  /* 0x1e */
     SQLITE_NULL,     /* 0x1f */
  };
  return aType[pVal->memType&0x1f];
}

/**************************** sqlite3_result_  *******************************
** The following routines are used by user-defined functions to specify
** the function result.
**
** The setStrOrError() funtion calls sqlite3VdbeMemSetStr() to store the
................................................................................
*/
SQLITE_API int sqlite3_data_count(sqlite3_stmt *pStmt){
  Vdbe *pVm = (Vdbe *)pStmt;
  if( pVm==0 || pVm->pResultSet==0 ) return 0;
  return pVm->nResColumn;
}


























/*
** Check to see if column iCol of the given statement is valid.  If
** it is, return a pointer to the Mem for the value of that column.
** If iCol is not valid, return a pointer to a Mem which has a value
** of NULL.
*/
................................................................................
  Mem *pOut;

  pVm = (Vdbe *)pStmt;
  if( pVm && pVm->pResultSet!=0 && i<pVm->nResColumn && i>=0 ){
    sqlite3_mutex_enter(pVm->db->mutex);
    pOut = &pVm->pResultSet[i];
  }else{
    /* If the value passed as the second argument is out of range, return
    ** a pointer to the following static Mem object which contains the
    ** value SQL NULL. Even though the Mem structure contains an element
    ** of type i64, on certain architectures (x86) with certain compiler
    ** switches (-Os), gcc may align this Mem object on a 4-byte boundary
    ** instead of an 8-byte one. This all works fine, except that when
    ** running with SQLITE_DEBUG defined the SQLite code sometimes assert()s
    ** that a Mem structure is located on an 8-byte boundary. To prevent
    ** these assert()s from failing, when building with SQLITE_DEBUG defined
    ** using gcc, we force nullMem to be 8-byte aligned using the magical
    ** __attribute__((aligned(8))) macro.  */
    static const Mem nullMem 
#if defined(SQLITE_DEBUG) && defined(__GNUC__)
      __attribute__((aligned(8))) 
#endif
      = {0, "", (double)0, {0}, 0, MEM_Null, SQLITE_NULL, 0,
#ifdef SQLITE_DEBUG
         0, 0,  /* pScopyFrom, pFiller */
#endif
         0, 0 };

    if( pVm && ALWAYS(pVm->db) ){
      sqlite3_mutex_enter(pVm->db->mutex);
      sqlite3Error(pVm->db, SQLITE_RANGE, 0);
    }
    pOut = (Mem*)&nullMem;
  }
  return pOut;
}

/*
** This function is called after invoking an sqlite3_value_XXX function on a 
** column value (i.e. a value returned by evaluating an SQL expression in the
................................................................................
** a pointer to a dynamically allocated string where some other entity
** is responsible for deallocating that string.  Because the register
** does not control the string, it might be deleted without the register
** knowing it.
**
** This routine converts an ephemeral string into a dynamically allocated
** string that the register itself controls.  In other words, it
** converts an MEM_Ephem string into an MEM_Dyn string.
*/
#define Deephemeralize(P) \
   if( ((P)->flags&MEM_Ephem)!=0 \
       && sqlite3VdbeMemMakeWriteable(P) ){ goto no_mem;}

/* Return true if the cursor was opened using the OP_OpenSorter opcode. */
#define isSorter(x) ((x)->pSorter!=0)
................................................................................
** loss of information and return the revised type of the argument.
*/
SQLITE_API int sqlite3_value_numeric_type(sqlite3_value *pVal){
  int eType = sqlite3_value_type(pVal);
  if( eType==SQLITE_TEXT ){
    Mem *pMem = (Mem*)pVal;
    applyNumericAffinity(pMem);
    sqlite3VdbeMemStoreType(pMem);
    eType = sqlite3_value_type(pVal);
  }
  return eType;
}

/*
** Exported version of applyAffinity(). This one works on sqlite3_value*, 
................................................................................

    /* Sanity checking on other operands */
#ifdef SQLITE_DEBUG
    if( (pOp->opflags & OPFLG_IN1)!=0 ){
      assert( pOp->p1>0 );
      assert( pOp->p1<=(p->nMem-p->nCursor) );
      assert( memIsValid(&aMem[pOp->p1]) );

      REGISTER_TRACE(pOp->p1, &aMem[pOp->p1]);
    }
    if( (pOp->opflags & OPFLG_IN2)!=0 ){
      assert( pOp->p2>0 );
      assert( pOp->p2<=(p->nMem-p->nCursor) );
      assert( memIsValid(&aMem[pOp->p2]) );

      REGISTER_TRACE(pOp->p2, &aMem[pOp->p2]);
    }
    if( (pOp->opflags & OPFLG_IN3)!=0 ){
      assert( pOp->p3>0 );
      assert( pOp->p3<=(p->nMem-p->nCursor) );
      assert( memIsValid(&aMem[pOp->p3]) );

      REGISTER_TRACE(pOp->p3, &aMem[pOp->p3]);
    }
    if( (pOp->opflags & OPFLG_OUT2)!=0 ){
      assert( pOp->p2>0 );
      assert( pOp->p2<=(p->nMem-p->nCursor) );
      memAboutToChange(p, &aMem[pOp->p2]);
    }
................................................................................
**
** Write the current address onto register P1
** and then jump to address P2.
*/
case OP_Gosub: {            /* jump */
  assert( pOp->p1>0 && pOp->p1<=(p->nMem-p->nCursor) );
  pIn1 = &aMem[pOp->p1];
  assert( (pIn1->flags & MEM_Dyn)==0 );
  memAboutToChange(p, pIn1);
  pIn1->flags = MEM_Int;
  pIn1->u.i = pc;
  REGISTER_TRACE(pOp->p1, pIn1);
  pc = pOp->p2 - 1;
  break;
}
................................................................................
** If the co-routine ends with OP_Yield or OP_Return then continue
** to the next instruction.  But if the co-routine ends with
** OP_EndCoroutine, jump immediately to P2.
*/
case OP_Yield: {            /* in1, jump */
  int pcDest;
  pIn1 = &aMem[pOp->p1];
  assert( (pIn1->flags & MEM_Dyn)==0 );
  pIn1->flags = MEM_Int;
  pcDest = (int)pIn1->u.i;
  pIn1->u.i = pc;
  REGISTER_TRACE(pOp->p1, pIn1);
  pc = pcDest;
  break;
}
................................................................................

#ifndef SQLITE_OMIT_UTF16
  if( encoding!=SQLITE_UTF8 ){
    rc = sqlite3VdbeMemSetStr(pOut, pOp->p4.z, -1, SQLITE_UTF8, SQLITE_STATIC);
    if( rc==SQLITE_TOOBIG ) goto too_big;
    if( SQLITE_OK!=sqlite3VdbeChangeEncoding(pOut, encoding) ) goto no_mem;
    assert( pOut->zMalloc==pOut->z );
    assert( pOut->flags & MEM_Dyn );
    pOut->zMalloc = 0;
    pOut->flags |= MEM_Static;
    pOut->flags &= ~MEM_Dyn;
    if( pOp->p4type==P4_DYNAMIC ){
      sqlite3DbFree(db, pOp->p4.z);
    }
    pOp->p4type = P4_DYNAMIC;
    pOp->p4.z = pOut->z;
    pOp->p1 = pOut->n;
  }
................................................................................
  pIn1 = &aMem[p1];
  pOut = &aMem[p2];
  do{
    assert( pOut<=&aMem[(p->nMem-p->nCursor)] );
    assert( pIn1<=&aMem[(p->nMem-p->nCursor)] );
    assert( memIsValid(pIn1) );
    memAboutToChange(p, pOut);

    zMalloc = pOut->zMalloc;
    pOut->zMalloc = 0;
    sqlite3VdbeMemMove(pOut, pIn1);
#ifdef SQLITE_DEBUG
    if( pOut->pScopyFrom>=&aMem[p1] && pOut->pScopyFrom<&aMem[p1+pOp->p3] ){
      pOut->pScopyFrom += p1 - pOp->p2;
    }
#endif


    pIn1->zMalloc = zMalloc;
    REGISTER_TRACE(p2++, pOut);
    pIn1++;
    pOut++;
  }while( n-- );
  break;
}
................................................................................
  pMem = p->pResultSet = &aMem[pOp->p1];
  for(i=0; i<pOp->p2; i++){
    assert( memIsValid(&pMem[i]) );
    Deephemeralize(&pMem[i]);
    assert( (pMem[i].flags & MEM_Ephem)==0
            || (pMem[i].flags & (MEM_Str|MEM_Blob))==0 );
    sqlite3VdbeMemNulTerminate(&pMem[i]);
    sqlite3VdbeMemStoreType(&pMem[i]);
    REGISTER_TRACE(pOp->p1+i, &pMem[i]);
  }
  if( db->mallocFailed ) goto no_mem;

  /* Return SQLITE_ROW
  */
  p->pc = pc + 1;
................................................................................
  if( ExpandBlob(pIn1) || ExpandBlob(pIn2) ) goto no_mem;
  Stringify(pIn1, encoding);
  Stringify(pIn2, encoding);
  nByte = pIn1->n + pIn2->n;
  if( nByte>db->aLimit[SQLITE_LIMIT_LENGTH] ){
    goto too_big;
  }
  MemSetTypeFlag(pOut, MEM_Str);
  if( sqlite3VdbeMemGrow(pOut, (int)nByte+2, pOut==pIn2) ){
    goto no_mem;
  }

  if( pOut!=pIn2 ){
    memcpy(pOut->z, pIn2->z, pIn2->n);
  }
  memcpy(&pOut->z[pIn2->n], pIn1->z, pIn1->n);
  pOut->z[nByte]=0;
  pOut->z[nByte+1] = 0;
  pOut->flags |= MEM_Term;
................................................................................
  assert( n==0 || (pOp->p2>0 && pOp->p2+n<=(p->nMem-p->nCursor)+1) );
  assert( pOp->p3<pOp->p2 || pOp->p3>=pOp->p2+n );
  pArg = &aMem[pOp->p2];
  for(i=0; i<n; i++, pArg++){
    assert( memIsValid(pArg) );
    apVal[i] = pArg;
    Deephemeralize(pArg);
    sqlite3VdbeMemStoreType(pArg);
    REGISTER_TRACE(pOp->p2+i, pArg);
  }

  assert( pOp->p4type==P4_FUNCDEF );
  ctx.pFunc = pOp->p4.pFunc;
  ctx.iOp = pc;
  ctx.pVdbe = p;
................................................................................

  /* Extract the content for the p2+1-th column.  Control can only
  ** reach this point if aOffset[p2], aOffset[p2+1], and aType[p2] are
  ** all valid.
  */
  assert( p2<pC->nHdrParsed );
  assert( rc==SQLITE_OK );

  if( pC->szRow>=aOffset[p2+1] ){
    /* This is the common case where the desired content fits on the original
    ** page - where the content is not on an overflow page */
    VdbeMemRelease(pDest);
    sqlite3VdbeSerialGet(pC->aRow+aOffset[p2], aType[p2], pDest);
  }else{
    /* This branch happens only when content is on overflow pages */
................................................................................
    sqlite3VdbeSerialGet(zData, t, pDest);
    /* If we dynamically allocated space to hold the data (in the
    ** sqlite3VdbeMemFromBtree() call above) then transfer control of that
    ** dynamically allocated space over to the pDest structure.
    ** This prevents a memory copy. */
    if( sMem.zMalloc ){
      assert( sMem.z==sMem.zMalloc );
      assert( !(pDest->flags & MEM_Dyn) );
      assert( !(pDest->flags & (MEM_Blob|MEM_Str)) || pDest->z==sMem.z );
      pDest->flags &= ~(MEM_Ephem|MEM_Static);
      pDest->flags |= MEM_Term;
      pDest->z = sMem.z;
      pDest->zMalloc = sMem.zMalloc;
    }
  }
  pDest->enc = encoding;
................................................................................
    j += sqlite3VdbeSerialPut(&zNewRecord[j], pRec, serial_type); /* content */
  }while( (++pRec)<=pLast );
  assert( i==nHdr );
  assert( j==nByte );

  assert( pOp->p3>0 && pOp->p3<=(p->nMem-p->nCursor) );
  pOut->n = (int)nByte;
  pOut->flags = MEM_Blob | MEM_Dyn;
  pOut->xDel = 0;
  if( nZero ){
    pOut->u.nZero = nZero;
    pOut->flags |= MEM_Zero;
  }
  pOut->enc = SQLITE_UTF8;  /* In case the blob is ever converted to text */
  REGISTER_TRACE(pOp->p3, pOut);
................................................................................
    assert( pOp->p4type==P4_INT32 );
    assert( nField>0 );
    r.pKeyInfo = pC->pKeyInfo;
    r.nField = (u16)nField;

    /* The next line of code computes as follows, only faster:
    **   if( oc==OP_SeekGT || oc==OP_SeekLE ){
    **     r.flags = UNPACKED_INCRKEY;
    **   }else{
    **     r.flags = 0;
    **   }
    */
    r.flags = (u8)(UNPACKED_INCRKEY * (1 & (oc - OP_SeekLT)));
    assert( oc!=OP_SeekGT || r.flags==UNPACKED_INCRKEY );
    assert( oc!=OP_SeekLE || r.flags==UNPACKED_INCRKEY );
    assert( oc!=OP_SeekGE || r.flags==0 );
    assert( oc!=OP_SeekLT || r.flags==0 );

    r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
    ExpandBlob(r.aMem);
    rc = sqlite3BtreeMovetoUnpacked(pC->pCursor, &r, 0, 0, &res);
................................................................................
    for(ii=0; ii<r.nField; ii++){
      assert( memIsValid(&r.aMem[ii]) );
      ExpandBlob(&r.aMem[ii]);
#ifdef SQLITE_DEBUG
      if( ii ) REGISTER_TRACE(pOp->p3+ii, &r.aMem[ii]);
#endif
    }
    r.flags = UNPACKED_PREFIX_MATCH;
    pIdxKey = &r;
  }else{
    pIdxKey = sqlite3VdbeAllocUnpackedRecord(
        pC->pKeyInfo, aTempRec, sizeof(aTempRec), &pFree
    ); 
    if( pIdxKey==0 ) goto no_mem;
    assert( pIn3->flags & MEM_Blob );
    assert( (pIn3->flags & MEM_Zero)==0 );  /* zeroblobs already expanded */
    sqlite3VdbeRecordUnpack(pC->pKeyInfo, pIn3->n, pIn3->z, pIdxKey);
    pIdxKey->flags |= UNPACKED_PREFIX_MATCH;
  }

  if( pOp->opcode==OP_NoConflict ){
    /* For the OP_NoConflict opcode, take the jump if any of the
    ** input fields are NULL, since any key with a NULL will not
    ** conflict */
    for(ii=0; ii<r.nField; ii++){
      if( r.aMem[ii].flags & MEM_Null ){
        pc = pOp->p2 - 1; VdbeBranchTaken(1,2);
................................................................................
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  pCrsr = pC->pCursor;
  assert( pCrsr!=0 );
  assert( pOp->p5==0 );
  r.pKeyInfo = pC->pKeyInfo;
  r.nField = (u16)pOp->p3;
  r.flags = UNPACKED_PREFIX_MATCH;
  r.aMem = &aMem[pOp->p2];
#ifdef SQLITE_DEBUG
  { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
  rc = sqlite3BtreeMovetoUnpacked(pCrsr, &r, 0, 0, &res);
  if( rc==SQLITE_OK && res==0 ){
    rc = sqlite3BtreeDelete(pCrsr);
................................................................................
  assert( pC->deferredMoveto==0 );
  assert( pOp->p5==0 || pOp->p5==1 );
  assert( pOp->p4type==P4_INT32 );
  r.pKeyInfo = pC->pKeyInfo;
  r.nField = (u16)pOp->p4.i;
  if( pOp->opcode<OP_IdxLT ){
    assert( pOp->opcode==OP_IdxLE || pOp->opcode==OP_IdxGT );
    r.flags = UNPACKED_INCRKEY | UNPACKED_PREFIX_MATCH;
  }else{
    assert( pOp->opcode==OP_IdxGE || pOp->opcode==OP_IdxLT );
    r.flags = UNPACKED_PREFIX_MATCH;
  }
  r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
  { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
  res = 0;  /* Not needed.  Only used to silence a warning. */
  rc = sqlite3VdbeIdxKeyCompare(pC, &r, &res);
................................................................................
  pRec = &aMem[pOp->p2];
  apVal = p->apArg;
  assert( apVal || n==0 );
  for(i=0; i<n; i++, pRec++){
    assert( memIsValid(pRec) );
    apVal[i] = pRec;
    memAboutToChange(p, pRec);
    sqlite3VdbeMemStoreType(pRec);
  }
  ctx.pFunc = pOp->p4.pFunc;
  assert( pOp->p3>0 && pOp->p3<=(p->nMem-p->nCursor) );
  ctx.pMem = pMem = &aMem[pOp->p3];
  pMem->n++;
  ctx.s.flags = MEM_Null;
  ctx.s.z = 0;
................................................................................

  /* Invoke the xFilter method */
  {
    res = 0;
    apArg = p->apArg;
    for(i = 0; i<nArg; i++){
      apArg[i] = &pArgc[i+1];
      sqlite3VdbeMemStoreType(apArg[i]);
    }

    p->inVtabMethod = 1;
    rc = pModule->xFilter(pVtabCursor, iQuery, pOp->p4.z, nArg, apArg);
    p->inVtabMethod = 0;
    sqlite3VtabImportErrmsg(p, pVtab);
    if( rc==SQLITE_OK ){
................................................................................
  if( ALWAYS(pModule->xUpdate) ){
    u8 vtabOnConflict = db->vtabOnConflict;
    apArg = p->apArg;
    pX = &aMem[pOp->p3];
    for(i=0; i<nArg; i++){
      assert( memIsValid(pX) );
      memAboutToChange(p, pX);
      sqlite3VdbeMemStoreType(pX);
      apArg[i] = pX;
      pX++;
    }
    db->vtabOnConflict = pOp->p5;
    rc = pModule->xUpdate(pVtab, nArg, apArg, &rowid);
    db->vtabOnConflict = vtabOnConflict;
    sqlite3VtabImportErrmsg(p, pVtab);
................................................................................
    assert( r2->nField>0 );
    for(i=0; i<r2->nField; i++){
      if( r2->aMem[i].flags & MEM_Null ){
        *pRes = -1;
        return;
      }
    }
    r2->flags |= UNPACKED_PREFIX_MATCH;
  }

  *pRes = sqlite3VdbeRecordCompare(nKey1, pKey1, r2);
}

/*
** This function is called to compare two iterator keys when merging 
** multiple b-tree segments. Parameter iOut is the index of the aTree[] 
** value to recalculate.
*/
................................................................................
      assert( op==TK_DELETE || op==TK_UPDATE || op==TK_INSERT );
      if( op!=TK_DELETE && sqlite3StrICmp("new",zTab) == 0 ){
        pExpr->iTable = 1;
        pTab = pParse->pTriggerTab;
      }else if( op!=TK_INSERT && sqlite3StrICmp("old",zTab)==0 ){
        pExpr->iTable = 0;
        pTab = pParse->pTriggerTab;


      }

      if( pTab ){ 
        int iCol;
        pSchema = pTab->pSchema;
        cntTab++;
        for(iCol=0, pCol=pTab->aCol; iCol<pTab->nCol; iCol++, pCol++){
................................................................................
  /* Sanity checking on calling parameters */
  assert( iStart>=0 );
  assert( nExtra>=1 );
  assert( pSrc!=0 );
  assert( iStart<=pSrc->nSrc );

  /* Allocate additional space if needed */
  if( pSrc->nSrc+nExtra>pSrc->nAlloc ){
    SrcList *pNew;
    int nAlloc = pSrc->nSrc+nExtra;
    int nGot;
    pNew = sqlite3DbRealloc(db, pSrc,
               sizeof(*pSrc) + (nAlloc-1)*sizeof(pSrc->a[0]) );
    if( pNew==0 ){
      assert( db->mallocFailed );
      return pSrc;
    }
    pSrc = pNew;
    nGot = (sqlite3DbMallocSize(db, pNew) - sizeof(*pSrc))/sizeof(pSrc->a[0])+1;
    pSrc->nAlloc = (u8)nGot;
  }

  /* Move existing slots that come after the newly inserted slots
  ** out of the way */
  for(i=pSrc->nSrc-1; i>=iStart; i--){
    pSrc->a[i+nExtra] = pSrc->a[i];
  }
  pSrc->nSrc += (i8)nExtra;

  /* Zero the newly allocated slots */
  memset(&pSrc->a[iStart], 0, sizeof(pSrc->a[0])*nExtra);
  for(i=iStart; i<iStart+nExtra; i++){
    pSrc->a[i].iCursor = -1;
  }

................................................................................
      VdbeComment((v, "%s", pEList->a[i].zName));
    }
  }else if( eDest!=SRT_Exists ){
    /* If the destination is an EXISTS(...) expression, the actual
    ** values returned by the SELECT are not required.
    */
    sqlite3ExprCodeExprList(pParse, pEList, regResult,
                            (eDest==SRT_Output)?SQLITE_ECEL_DUP:0);
  }

  /* If the DISTINCT keyword was present on the SELECT statement
  ** and this row has been seen before, then do not make this row
  ** part of the result.
  */
  if( hasDistinct ){
................................................................................
    */
    nName = sqlite3Strlen30(zName);
    for(j=cnt=0; j<i; j++){
      if( sqlite3StrICmp(aCol[j].zName, zName)==0 ){
        char *zNewName;
        int k;
        for(k=nName-1; k>1 && sqlite3Isdigit(zName[k]); k--){}
        if( zName[k]==':' ) nName = k;
        zName[nName] = 0;
        zNewName = sqlite3MPrintf(db, "%s:%d", zName, ++cnt);
        sqlite3DbFree(db, zName);
        zName = zNewName;
        j = -1;
        if( zName==0 ) break;
      }
................................................................................
#endif
  assert( pRec!=0 );
  iCol = pRec->nField - 1;
  assert( pIdx->nSample>0 );
  assert( pRec->nField>0 && iCol<pIdx->nSampleCol );
  do{
    iTest = (iMin+i)/2;
    res = sqlite3VdbeRecordCompare(aSample[iTest].n, aSample[iTest].p, pRec);
    if( res<0 ){
      iMin = iTest+1;
    }else{
      i = iTest;
    }
  }while( res && iMin<i );

................................................................................
#ifdef SQLITE_DEBUG
  /* The following assert statements check that the binary search code
  ** above found the right answer. This block serves no purpose other
  ** than to invoke the asserts.  */
  if( res==0 ){
    /* If (res==0) is true, then sample $i must be equal to pRec */
    assert( i<pIdx->nSample );
    assert( 0==sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec)
         || pParse->db->mallocFailed );
  }else{
    /* Otherwise, pRec must be smaller than sample $i and larger than
    ** sample ($i-1).  */
    assert( i==pIdx->nSample 
         || sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec)>0
         || pParse->db->mallocFailed );
    assert( i==0
         || sqlite3VdbeRecordCompare(aSample[i-1].n, aSample[i-1].p, pRec)<0
         || pParse->db->mallocFailed );
  }
#endif /* ifdef SQLITE_DEBUG */

  /* At this point, aSample[i] is the first sample that is greater than
  ** or equal to pVal.  Or if i==pIdx->nSample, then all samples are less
  ** than pVal.  If aSample[i]==pVal, then res==0.
................................................................................
    assert( pTab!=0 );
    pLoop = pLevel->pWLoop;

    /* For a co-routine, change all OP_Column references to the table of
    ** the co-routine into OP_SCopy of result contained in a register.
    ** OP_Rowid becomes OP_Null.
    */
    if( pTabItem->viaCoroutine ){
      last = sqlite3VdbeCurrentAddr(v);
      k = pLevel->addrBody;
      pOp = sqlite3VdbeGetOp(v, k);
      for(; k<last; k++, pOp++){
        if( pOp->p1!=pLevel->iTabCur ) continue;
        if( pOp->opcode==OP_Column ){
          pOp->opcode = OP_SCopy;







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71
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100
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102
103
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107
108
109
110
111
112
113
114
115
116
117
118
119
...
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
....
9365
9366
9367
9368
9369
9370
9371
9372
9373
9374
9375
9376
9377
9378
9379
9380
9381
9382
9383
.....
10984
10985
10986
10987
10988
10989
10990
10991
10992
10993
10994
10995
10996
10997
10998
10999
11000
11001
11002
11003





11004
11005
11006
11007
11008
11009
11010
.....
11416
11417
11418
11419
11420
11421
11422
11423
11424
11425
11426
11427
11428
11429
11430
11431
.....
13449
13450
13451
13452
13453
13454
13455
13456
13457
13458
13459
13460
13461
13462
13463
13464
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.....
13837
13838
13839
13840
13841
13842
13843

13844
13845
13846
13847
13848
13849
13850
.....
13863
13864
13865
13866
13867
13868
13869
13870
13871
13872
13873
13874
13875
13876
13877
13878
13879
13880
13881
13882
13883
13884
13885
13886
13887
13888
13889
13890
13891
.....
14060
14061
14062
14063
14064
14065
14066
14067
14068
14069
14070
14071
14072
14073
14074
.....
14103
14104
14105
14106
14107
14108
14109


14110
14111
14112
14113
14114
14115
14116
.....
14123
14124
14125
14126
14127
14128
14129
14130
14131
14132
14133
14134
14135
14136
14137
.....
21507
21508
21509
21510
21511
21512
21513
21514
21515
21516
21517
21518
21519
21520
21521
.....
21635
21636
21637
21638
21639
21640
21641

21642
21643
21644
21645
21646
21647
21648
.....
55340
55341
55342
55343
55344
55345
55346
55347
55348
55349
55350
55351
55352
55353
55354
.....
55361
55362
55363
55364
55365
55366
55367
55368
55369
55370
55371
55372
55373
55374
55375
55376
55377
55378
55379
55380
55381
55382
55383
55384
.....
55404
55405
55406
55407
55408
55409
55410
55411
55412
55413
55414
55415
55416
55417
55418
.....
55456
55457
55458
55459
55460
55461
55462
55463
55464
55465
55466
55467
55468
55469
55470
55471
55472
55473
55474
55475
55476
55477
.....
55484
55485
55486
55487
55488
55489
55490
55491
55492
55493
55494
55495
55496
55497
55498
.....
60047
60048
60049
60050
60051
60052
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60054
60055
60056
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60059
60060
60061
60062
60063
60064
60065
60066
60067
60068
60069
60070
60071
60072
60073
60074
60075
60076
60077
60078
60079
60080
60081
60082
60083
60084
60085
60086
60087
60088
60089
60090
60091
60092
60093
60094
60095
60096
.....
60133
60134
60135
60136
60137
60138
60139
60140





60141
60142
60143
60144
60145
60146
60147
.....
60151
60152
60153
60154
60155
60156
60157
60158
60159
60160
60161
60162
60163
60164
60165
60166
60167
60168
60169
60170
60171
60172
60173
60174
60175
60176
60177
60178
60179
60180
60181
.....
60336
60337
60338
60339
60340
60341
60342
60343
60344
60345
60346
60347
60348
60349
60350
60351
60352
60353
60354
60355
60356
60357
60358
60359
60360
60361
60362
60363
60364
60365
60366
60367
60368
.....
60543
60544
60545
60546
60547
60548
60549

60550
60551
60552
60553
60554
60555
60556
60557
60558
60559
60560
60561

60562
60563
60564
60565
60566
60567
60568
.....
60577
60578
60579
60580
60581
60582
60583

60584
60585
60586
60587
60588
60589
60590
.....
60591
60592
60593
60594
60595
60596
60597

60598
60599
60600
60601
60602
60603
60604
.....
60688
60689
60690
60691
60692
60693
60694
60695
60696
60697
60698
60699
60700
60701
60702
.....
60799
60800
60801
60802
60803
60804
60805

60806
60807
60808
60809
60810
60811
60812
.....
60813
60814
60815
60816
60817
60818
60819

















































































































60820
60821
60822
60823
60824
60825
60826
.....
60853
60854
60855
60856
60857
60858
60859
60860
60861



60862
60863
60864
60865
60866
60867
60868
60869

60870
60871
60872
60873
60874
60875

60876
60877
60878
60879
60880
60881
60882
.....
60926
60927
60928
60929
60930
60931
60932

60933
60934
60935
60936
60937
60938
60939
.....
60971
60972
60973
60974
60975
60976
60977

60978
60979
60980

60981
60982
60983
60984
60985
60986
60987
.....
61046
61047
61048
61049
61050
61051
61052

61053
61054
61055
61056
61057
61058
61059
.....
61063
61064
61065
61066
61067
61068
61069
61070
61071
61072
61073
61074
61075
61076
61077
61078
61079
.....
61091
61092
61093
61094
61095
61096
61097



61098
61099
61100
61101
61102
61103
61104
.....
61254
61255
61256
61257
61258
61259
61260

61261
61262
61263
61264
61265
61266
61267
.....
62545
62546
62547
62548
62549
62550
62551
62552
62553
62554
62555
62556
62557
62558
62559
.....
62688
62689
62690
62691
62692
62693
62694

62695
62696
62697
62698
62699
62700
62701

62702
62703
62704
62705
62706
62707
62708
.....
62720
62721
62722
62723
62724
62725
62726

62727
62728
62729
62730

62731
62732
62733
62734

62735
62736
62737
62738
62739
62740
62741
62742
62743
62744
62745
62746
62747
62748
62749

62750
62751
62752
62753
62754
62755
62756
62757
62758
62759

62760
62761
62762
62763
62764
62765
62766
62767
62768
62769

62770
62771
62772

62773
62774
62775
62776
62777
62778
62779
.....
64258
64259
64260
64261
64262
64263
64264
64265
64266
64267
64268
64269
64270
64271
64272
64273
64274
64275
64276
64277
64278
64279
64280
64281
64282
64283

64284
64285
64286
64287
64288
64289
64290
64291
64292
64293
64294
64295
64296

64297
64298
64299
64300
64301

64302
64303
64304
64305
64306
64307
64308
64309
64310
64311
64312
64313



64314
64315
64316
64317
64318
64319
64320
.....
64324
64325
64326
64327
64328
64329
64330
64331
64332
64333
64334
64335
64336
64337
64338
64339
.....
64421
64422
64423
64424
64425
64426
64427
64428
64429
64430
64431
64432
64433
64434
64435
.....
64442
64443
64444
64445
64446
64447
64448
64449
64450
64451

64452
64453
64454
64455
64456








64457
64458
64459
64460
64461
64462
64463
64464
64465
64466
64467
.....
64527
64528
64529
64530
64531
64532
64533
64534
64535
64536

64537
64538

64539
64540
64541
64542
64543
64544
64545
64546
64547
64548
64549
64550
64551
64552
64553
64554
64555
64556
64557
64558
64559
64560
64561
64562
64563
64564
64565
64566
64567
64568
64569
64570
64571
64572
64573
64574
64575
64576
64577
64578
64579
64580
64581
64582
64583
64584
64585
64586
64587
64588
64589
64590
64591
64592
64593
64594
64595
64596
64597
64598
64599
64600
64601
64602
64603
64604
64605
64606
64607
64608
64609
64610
64611
64612
64613
64614
64615
64616
64617
64618
64619
64620
64621
64622
64623
64624
64625
64626
64627
64628
64629
64630
64631
64632
64633
64634
64635
64636
64637
64638
64639
64640
64641
64642
64643
64644
64645
64646
64647
64648
64649
64650
64651
64652
64653
64654
64655
64656
64657
64658
64659
64660
64661
64662

64663
64664
64665
64666
64667
64668
64669
64670
64671
64672
64673
64674
64675
64676
64677
64678
64679
64680
64681
64682
64683
64684
64685
64686
64687
64688
64689
64690
64691
64692
64693
64694
64695
64696
64697
64698
64699
64700
64701
64702
64703
64704
64705
64706
64707
64708
64709
64710
64711
64712
64713
64714
64715
64716
64717
64718
64719
64720
64721
64722
64723
64724
64725
64726
64727
64728
64729
64730
64731
64732
64733
64734
64735
64736
64737
64738
64739
64740
64741
64742
64743
64744
64745
64746
64747
64748
64749
64750
64751
64752
64753
64754
64755
64756
64757
64758
64759
64760
64761
64762
64763
64764
64765
64766


64767
64768
64769
64770
64771
64772
64773
64774
64775
64776
64777
64778
64779
64780
64781
64782
64783
64784
64785
64786
64787
64788
64789
64790
64791
64792
64793
64794
64795
64796
64797
64798
64799
64800
64801
64802
64803
64804
64805
64806
64807
64808
64809
64810
64811
64812
64813
64814
64815
64816
64817
64818
64819
64820
64821
64822
64823
64824
64825
64826
64827
64828
64829
64830
64831
64832
64833
64834
64835
64836
64837
64838
64839
64840
64841
64842
64843
64844
64845
64846
64847
64848
64849
64850
64851
64852
64853
64854
64855
64856
64857
64858
64859
64860
64861
64862
64863
64864
64865
64866
64867
64868
64869
64870
64871
64872
64873
64874
64875
64876
64877
64878
64879
64880
64881
64882
64883
64884
64885
64886
64887
64888
64889
64890
64891
64892
64893
64894
64895
64896
64897
64898
64899
64900
64901
64902
64903
64904
64905
64906
64907
64908
64909
64910
64911
64912
64913
64914
64915
64916
64917
64918
64919
64920
64921
64922
64923
64924
64925
64926
64927
64928
64929
64930
64931
64932
64933
64934
64935
64936
64937
64938
64939
64940
64941
64942
64943
64944
64945
64946
64947
64948
64949
64950
64951
64952
64953
64954
64955
64956
64957
64958
64959
64960
64961
64962
64963
64964
64965
64966
64967
64968
64969
64970
64971
64972
64973
64974
64975
64976
64977
64978
64979
64980
64981
64982
64983
64984
64985
64986
64987
64988
64989
64990
64991
64992
64993
64994
64995
64996
64997
64998
64999
65000
65001
65002
65003
65004
65005
65006
65007
65008
65009
65010
65011
65012
65013
65014
65015
65016
65017
65018
65019
65020
65021
65022
65023
65024
65025
65026
65027
65028
65029
65030
65031
65032
65033
65034
65035
65036
65037
65038
65039
65040
65041
65042
65043
65044
65045
65046
65047
65048
65049
65050
65051
65052
65053
65054
65055
65056
65057
65058
65059
65060
65061
65062
65063
65064
65065
65066
65067
65068
65069
65070
65071
65072
65073
65074
65075
65076
65077
65078
65079
65080
65081
65082
65083
65084
65085
65086
65087
65088
65089
.....
65166
65167
65168
65169
65170
65171
65172
65173
65174
65175
65176
65177
65178
65179
65180
65181
65182
65183
65184
65185
65186
65187
65188
65189
65190
65191
65192
65193
65194
65195

65196
65197
65198
65199
65200
65201
65202
65203
.....
65253
65254
65255
65256
65257
65258
65259

65260
65261
65262
65263
65264
65265
65266
.....
65426
65427
65428
65429
65430
65431
65432

65433
65434
65435
65436
65437
65438
65439
.....
65496
65497
65498
65499
65500
65501
65502
65503
65504
65505
65506
65507
65508
65509
65510
.....
66017
66018
66019
66020
66021
66022
66023
66024
66025
66026
66027
66028
66029
66030
66031
66032
66033
66034
66035
66036
66037
66038
66039
66040
66041
66042
66043
66044
66045
66046
66047
66048
66049
66050
66051
66052
66053
66054
.....
66057
66058
66059
66060
66061
66062
66063





















66064
66065
66066
66067
66068
66069
66070
66071
66072
66073
66074
66075
.....
67100
67101
67102
67103
67104
67105
67106
67107
67108
67109
67110
67111
67112
67113
67114
.....
67241
67242
67243
67244
67245
67246
67247

67248
67249
67250
67251
67252
67253
67254
.....
67636
67637
67638
67639
67640
67641
67642
67643
67644
67645
67646
67647
67648
67649
67650
67651
67652
67653
67654
67655
67656
67657
67658
67659
67660
67661
67662
67663
67664
.....
67752
67753
67754
67755
67756
67757
67758
67759
67760
67761
67762
67763
67764
67765
67766
.....
67825
67826
67827
67828
67829
67830
67831
67832
67833
67834
67835
67836
67837
67838
67839
.....
67998
67999
68000
68001
68002
68003
68004
68005
68006
68007

68008
68009
68010
68011
68012
68013
68014
.....
68136
68137
68138
68139
68140
68141
68142
68143
68144

68145
68146
68147
68148
68149
68150
68151
68152
68153
68154
68155
68156
68157
68158
68159
.....
68279
68280
68281
68282
68283
68284
68285

68286
68287
68288
68289
68290
68291
68292
.....
68321
68322
68323
68324
68325
68326
68327

68328
68329
68330
68331
68332
68333
68334
68335
68336
68337
68338
.....
68524
68525
68526
68527
68528
68529
68530

68531
68532
68533
68534
68535
68536
68537
.....
69498
69499
69500
69501
69502
69503
69504
69505
69506
69507
69508
69509
69510
69511
69512
.....
69536
69537
69538
69539
69540
69541
69542
69543
69544
69545
69546
69547
69548
69549
69550
69551
.....
69720
69721
69722
69723
69724
69725
69726
69727
69728
69729
69730
69731
69732
69733
69734
.....
70594
70595
70596
70597
70598
70599
70600
70601
70602
70603
70604
70605
70606
70607
70608
70609
70610
70611
70612
70613
70614
70615
70616
70617
.....
70761
70762
70763
70764
70765
70766
70767

70768
70769
70770
70771
70772
70773
70774
70775
70776

70777
70778
70779
70780
70781
70782
70783
70784
70785
.....
71660
71661
71662
71663
71664
71665
71666
71667
71668
71669
71670
71671
71672
71673
71674
.....
71774
71775
71776
71777
71778
71779
71780
71781
71782
71783
71784
71785
71786
71787
71788
71789
71790
71791
.....
72528
72529
72530
72531
72532
72533
72534

72535
72536
72537
72538
72539
72540
72541
.....
72961
72962
72963
72964
72965
72966
72967

72968
72969
72970
72971
72972
72973
72974
.....
73167
73168
73169
73170
73171
73172
73173

73174
73175
73176
73177
73178
73179
73180
.....
74278
74279
74280
74281
74282
74283
74284
74285
74286
74287
74288
74289
74290
74291
74292
74293
74294
74295
.....
75918
75919
75920
75921
75922
75923
75924
75925
75926
75927
75928
75929
75930
75931
75932
75933
.....
88190
88191
88192
88193
88194
88195
88196
88197
88198
88199
88200
88201
88202
88203
88204
88205
88206
88207
88208
88209
88210
88211
88212
88213
88214
88215
88216
88217
88218
88219
88220
88221
88222
88223
88224
......
100588
100589
100590
100591
100592
100593
100594
100595
100596
100597
100598
100599
100600
100601
100602
......
101501
101502
101503
101504
101505
101506
101507
101508
101509
101510
101511
101512
101513
101514
101515
......
111238
111239
111240
111241
111242
111243
111244
111245
111246
111247
111248
111249
111250
111251
111252
......
111253
111254
111255
111256
111257
111258
111259
111260
111261
111262
111263
111264
111265
111266
111267
111268
111269
111270
111271
111272
111273
111274
111275
111276
......
115195
115196
115197
115198
115199
115200
115201
115202
115203
115204
115205
115206
115207
115208
115209
# define _LARGE_FILE       1
# ifndef _FILE_OFFSET_BITS
#   define _FILE_OFFSET_BITS 64
# endif
# define _LARGEFILE_SOURCE 1
#endif

/*
** For MinGW, check to see if we can include the header file containing its
** version information, among other things.  Normally, this internal MinGW
** header file would [only] be included automatically by other MinGW header
** files; however, the contained version information is now required by this
** header file to work around binary compatibility issues (see below) and
** this is the only known way to reliably obtain it.  This entire #if block
** would be completely unnecessary if there was any other way of detecting
** MinGW via their preprocessor (e.g. if they customized their GCC to define
** some MinGW-specific macros).  When compiling for MinGW, either the
** _HAVE_MINGW_H or _HAVE__MINGW_H (note the extra underscore) macro must be
** defined; otherwise, detection of conditions specific to MinGW will be
** disabled.
*/
#if defined(_HAVE_MINGW_H)
# include "mingw.h"
#elif defined(_HAVE__MINGW_H)
# include "_mingw.h"
#endif

/*
** For MinGW version 4.x (and higher), check to see if the _USE_32BIT_TIME_T
** define is required to maintain binary compatibility with the MSVC runtime
** library in use (e.g. for Windows XP).
*/
#if !defined(_USE_32BIT_TIME_T) && !defined(_USE_64BIT_TIME_T) && \
    defined(_WIN32) && !defined(_WIN64) && \
    defined(__MINGW_MAJOR_VERSION) && __MINGW_MAJOR_VERSION >= 4 && \
    defined(__MSVCRT__)
# define _USE_32BIT_TIME_T
#endif

/* The public SQLite interface.  The _FILE_OFFSET_BITS macro must appear
** first in QNX.  Also, the _USE_32BIT_TIME_T macro must appear first for
** MinGW.
*/
/************** Include sqlite3.h in the middle of sqliteInt.h ***************/
/************** Begin file sqlite3.h *****************************************/
/*
** 2001 September 15
**
** The author disclaims copyright to this source code.  In place of
................................................................................
**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.8.4"
#define SQLITE_VERSION_NUMBER 3008004
#define SQLITE_SOURCE_ID      "2014-03-05 19:04:46 0723effc9ccae7c660fb847b36ce9324e0cb5042"

/*
** CAPI3REF: Run-Time Library Version Numbers
** KEYWORDS: sqlite3_version, sqlite3_sourceid
**
** These interfaces provide the same information as the [SQLITE_VERSION],
** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros
................................................................................
SQLITE_PRIVATE sqlite3_value *sqlite3VdbeGetBoundValue(Vdbe*, int, u8);
SQLITE_PRIVATE void sqlite3VdbeSetVarmask(Vdbe*, int);
#ifndef SQLITE_OMIT_TRACE
SQLITE_PRIVATE   char *sqlite3VdbeExpandSql(Vdbe*, const char*);
#endif

SQLITE_PRIVATE void sqlite3VdbeRecordUnpack(KeyInfo*,int,const void*,UnpackedRecord*);
SQLITE_PRIVATE int sqlite3VdbeRecordCompare(int,const void*,const UnpackedRecord*,int);
SQLITE_PRIVATE UnpackedRecord *sqlite3VdbeAllocUnpackedRecord(KeyInfo *, char *, int, char **);

typedef int (*RecordCompare)(int,const void*,const UnpackedRecord*,int);
SQLITE_PRIVATE RecordCompare sqlite3VdbeFindCompare(UnpackedRecord*);

#ifndef SQLITE_OMIT_TRIGGER
SQLITE_PRIVATE void sqlite3VdbeLinkSubProgram(Vdbe *, SubProgram *);
#endif

/* Use SQLITE_ENABLE_COMMENTS to enable generation of extra comments on
** each VDBE opcode.
................................................................................
** Records are used to store the content of a table row and to store
** the key of an index.  A blob encoding of a record is created by
** the OP_MakeRecord opcode of the VDBE and is disassembled by the
** OP_Column opcode.
**
** This structure holds a record that has already been disassembled
** into its constituent fields.
**
** The r1 and r2 member variables are only used by the optimized comparison
** functions vdbeRecordCompareInt() and vdbeRecordCompareString().
*/
struct UnpackedRecord {
  KeyInfo *pKeyInfo;  /* Collation and sort-order information */
  u16 nField;         /* Number of entries in apMem[] */
  i8 default_rc;      /* Comparison result if keys are equal */
  Mem *aMem;          /* Values */
  int r1;             /* Value to return if (lhs > rhs) */
  int r2;             /* Value to return if (rhs < lhs) */
};







/*
** Each SQL index is represented in memory by an
** instance of the following structure.
**
** The columns of the table that are to be indexed are described
** by the aiColumn[] field of this structure.  For example, suppose
................................................................................
** But sqlite3SrcListShiftJoinType() later shifts the jointypes so that each
** jointype expresses the join between the table and the previous table.
**
** In the colUsed field, the high-order bit (bit 63) is set if the table
** contains more than 63 columns and the 64-th or later column is used.
*/
struct SrcList {
  int nSrc;        /* Number of tables or subqueries in the FROM clause */
  u32 nAlloc;      /* Number of entries allocated in a[] below */
  struct SrcList_item {
    Schema *pSchema;  /* Schema to which this item is fixed */
    char *zDatabase;  /* Name of database holding this table */
    char *zName;      /* Name of the table */
    char *zAlias;     /* The "B" part of a "A AS B" phrase.  zName is the "A" */
    Table *pTab;      /* An SQL table corresponding to zName */
    Select *pSelect;  /* A SELECT statement used in place of a table name */
................................................................................
  "OMIT_CHECK",
#endif
#ifdef SQLITE_OMIT_COMPLETE
  "OMIT_COMPLETE",
#endif
#ifdef SQLITE_OMIT_COMPOUND_SELECT
  "OMIT_COMPOUND_SELECT",
#endif
#ifdef SQLITE_OMIT_CTE
  "OMIT_CTE",
#endif
#ifdef SQLITE_OMIT_DATETIME_FUNCS
  "OMIT_DATETIME_FUNCS",
#endif
#ifdef SQLITE_OMIT_DECLTYPE
  "OMIT_DECLTYPE",
#endif
................................................................................
    int nZero;          /* Used when bit MEM_Zero is set in flags */
    FuncDef *pDef;      /* Used only when flags==MEM_Agg */
    RowSet *pRowSet;    /* Used only when flags==MEM_RowSet */
    VdbeFrame *pFrame;  /* Used when flags==MEM_Frame */
  } u;
  int n;              /* Number of characters in string value, excluding '\0' */
  u16 flags;          /* Some combination of MEM_Null, MEM_Str, MEM_Dyn, etc. */

  u8  enc;            /* SQLITE_UTF8, SQLITE_UTF16BE, SQLITE_UTF16LE */
#ifdef SQLITE_DEBUG
  Mem *pScopyFrom;    /* This Mem is a shallow copy of pScopyFrom */
  void *pFiller;      /* So that sizeof(Mem) is a multiple of 8 */
#endif
  void (*xDel)(void *);  /* If not null, call this function to delete Mem.z */
  char *zMalloc;      /* Dynamic buffer allocated by sqlite3_malloc() */
................................................................................
** flags may coexist with the MEM_Str flag.
*/
#define MEM_Null      0x0001   /* Value is NULL */
#define MEM_Str       0x0002   /* Value is a string */
#define MEM_Int       0x0004   /* Value is an integer */
#define MEM_Real      0x0008   /* Value is a real number */
#define MEM_Blob      0x0010   /* Value is a BLOB */
#define MEM_AffMask   0x001f   /* Mask of affinity bits */
#define MEM_RowSet    0x0020   /* Value is a RowSet object */
#define MEM_Frame     0x0040   /* Value is a VdbeFrame object */
#define MEM_Undefined 0x0080   /* Value is undefined */
#define MEM_Cleared   0x0100   /* NULL set by OP_Null, not from data */
#define MEM_TypeMask  0x01ff   /* Mask of type bits */


/* Whenever Mem contains a valid string or blob representation, one of
** the following flags must be set to determine the memory management
** policy for Mem.z.  The MEM_Term flag tells us whether or not the
** string is \000 or \u0000 terminated
*/
#define MEM_Term      0x0200   /* String rep is nul terminated */
#define MEM_Dyn       0x0400   /* Need to call Mem.xDel() on Mem.z */
#define MEM_Static    0x0800   /* Mem.z points to a static string */
#define MEM_Ephem     0x1000   /* Mem.z points to an ephemeral string */
#define MEM_Agg       0x2000   /* Mem.z points to an agg function context */
#define MEM_Zero      0x4000   /* Mem.i contains count of 0s appended to blob */
#ifdef SQLITE_OMIT_INCRBLOB
  #undef MEM_Zero
  #define MEM_Zero 0x0000
................................................................................
SQLITE_PRIVATE u32 sqlite3VdbeSerialTypeLen(u32);
SQLITE_PRIVATE u32 sqlite3VdbeSerialType(Mem*, int);
SQLITE_PRIVATE u32 sqlite3VdbeSerialPut(unsigned char*, Mem*, u32);
SQLITE_PRIVATE u32 sqlite3VdbeSerialGet(const unsigned char*, u32, Mem*);
SQLITE_PRIVATE void sqlite3VdbeDeleteAuxData(Vdbe*, int, int);

int sqlite2BtreeKeyCompare(BtCursor *, const void *, int, int, int *);
SQLITE_PRIVATE int sqlite3VdbeIdxKeyCompare(VdbeCursor*,const UnpackedRecord*,int*);
SQLITE_PRIVATE int sqlite3VdbeIdxRowid(sqlite3*, BtCursor *, i64 *);
SQLITE_PRIVATE int sqlite3MemCompare(const Mem*, const Mem*, const CollSeq*);
SQLITE_PRIVATE int sqlite3VdbeExec(Vdbe*);
SQLITE_PRIVATE int sqlite3VdbeList(Vdbe*);
SQLITE_PRIVATE int sqlite3VdbeHalt(Vdbe*);
SQLITE_PRIVATE int sqlite3VdbeChangeEncoding(Mem *, int);
SQLITE_PRIVATE int sqlite3VdbeMemTooBig(Mem*);
................................................................................
  if( VdbeMemDynamic(X) ) sqlite3VdbeMemReleaseExternal(X);
SQLITE_PRIVATE int sqlite3VdbeMemFinalize(Mem*, FuncDef*);
SQLITE_PRIVATE const char *sqlite3OpcodeName(int);
SQLITE_PRIVATE int sqlite3VdbeMemGrow(Mem *pMem, int n, int preserve);
SQLITE_PRIVATE int sqlite3VdbeCloseStatement(Vdbe *, int);
SQLITE_PRIVATE void sqlite3VdbeFrameDelete(VdbeFrame*);
SQLITE_PRIVATE int sqlite3VdbeFrameRestore(VdbeFrame *);


SQLITE_PRIVATE int sqlite3VdbeTransferError(Vdbe *p);

SQLITE_PRIVATE int sqlite3VdbeSorterInit(sqlite3 *, VdbeCursor *);
SQLITE_PRIVATE void sqlite3VdbeSorterClose(sqlite3 *, VdbeCursor *);
SQLITE_PRIVATE int sqlite3VdbeSorterRowkey(const VdbeCursor *, Mem *);
SQLITE_PRIVATE int sqlite3VdbeSorterNext(sqlite3 *, const VdbeCursor *, int *);
SQLITE_PRIVATE int sqlite3VdbeSorterRewind(sqlite3 *, const VdbeCursor *, int *);
................................................................................
#else
# define sqlite3VdbeEnter(X)
# define sqlite3VdbeLeave(X)
#endif

#ifdef SQLITE_DEBUG
SQLITE_PRIVATE void sqlite3VdbeMemAboutToChange(Vdbe*,Mem*);
SQLITE_PRIVATE int sqlite3VdbeCheckMemInvariants(Mem*);
#endif

#ifndef SQLITE_OMIT_FOREIGN_KEY
SQLITE_PRIVATE int sqlite3VdbeCheckFk(Vdbe *, int);
#else
# define sqlite3VdbeCheckFk(p,i) 0
#endif
................................................................................
  }
  *z = 0;
  assert( (pMem->n+(desiredEnc==SQLITE_UTF8?1:2))<=len );

  sqlite3VdbeMemRelease(pMem);
  pMem->flags &= ~(MEM_Static|MEM_Dyn|MEM_Ephem);
  pMem->enc = desiredEnc;
  pMem->flags |= (MEM_Term);
  pMem->z = (char*)zOut;
  pMem->zMalloc = pMem->z;

translate_out:
#if defined(TRANSLATE_TRACE) && defined(SQLITE_DEBUG)
  {
    char zBuf[100];
................................................................................
  sqlite3VdbeChangeEncoding(&m, SQLITE_UTF8);
  if( db->mallocFailed ){
    sqlite3VdbeMemRelease(&m);
    m.z = 0;
  }
  assert( (m.flags & MEM_Term)!=0 || db->mallocFailed );
  assert( (m.flags & MEM_Str)!=0 || db->mallocFailed );

  assert( m.z || db->mallocFailed );
  return m.z;
}

/*
** zIn is a UTF-16 encoded unicode string at least nChar characters long.
** Return the number of bytes in the first nChar unicode characters
................................................................................
  BtCursor *pCur,          /* The cursor to be moved */
  UnpackedRecord *pIdxKey, /* Unpacked index key */
  i64 intKey,              /* The table key */
  int biasRight,           /* If true, bias the search to the high end */
  int *pRes                /* Write search results here */
){
  int rc;
  RecordCompare xRecordCompare;

  assert( cursorHoldsMutex(pCur) );
  assert( sqlite3_mutex_held(pCur->pBtree->db->mutex) );
  assert( pRes );
  assert( (pIdxKey==0)==(pCur->pKeyInfo==0) );

  /* If the cursor is already positioned at the point we are trying
................................................................................
      return SQLITE_OK;
    }
    if( pCur->atLast && pCur->info.nKey<intKey ){
      *pRes = -1;
      return SQLITE_OK;
    }
  }

  if( pIdxKey ){
    xRecordCompare = sqlite3VdbeFindCompare(pIdxKey);
    assert( pIdxKey->default_rc==1 
         || pIdxKey->default_rc==0 
         || pIdxKey->default_rc==-1
    );
  }else{
    xRecordCompare = 0; /* Not actually used.  Avoids a compiler warning. */
  }

  rc = moveToRoot(pCur);
  if( rc ){
    return rc;
  }
  assert( pCur->pgnoRoot==0 || pCur->apPage[pCur->iPage] );
  assert( pCur->pgnoRoot==0 || pCur->apPage[pCur->iPage]->isInit );
................................................................................
    assert( pPage->nCell>0 );
    assert( pPage->intKey==(pIdxKey==0) );
    lwr = 0;
    upr = pPage->nCell-1;
    assert( biasRight==0 || biasRight==1 );
    idx = upr>>(1-biasRight); /* idx = biasRight ? upr : (lwr+upr)/2; */
    pCur->aiIdx[pCur->iPage] = (u16)idx;
    if( xRecordCompare==0 ){
      for(;;){
        i64 nCellKey;
        pCell = findCell(pPage, idx) + pPage->childPtrSize;
        if( pPage->hasData ){
          while( 0x80 <= *(pCell++) ){
            if( pCell>=pPage->aDataEnd ) return SQLITE_CORRUPT_BKPT;
          }
................................................................................
        */
        nCell = pCell[0];
        if( nCell<=pPage->max1bytePayload ){
          /* This branch runs if the record-size field of the cell is a
          ** single byte varint and the record fits entirely on the main
          ** b-tree page.  */
          testcase( pCell+nCell+1==pPage->aDataEnd );
          c = xRecordCompare(nCell, (void*)&pCell[1], pIdxKey, 0);
        }else if( !(pCell[1] & 0x80) 
          && (nCell = ((nCell&0x7f)<<7) + pCell[1])<=pPage->maxLocal
        ){
          /* The record-size field is a 2 byte varint and the record 
          ** fits entirely on the main b-tree page.  */
          testcase( pCell+nCell+2==pPage->aDataEnd );
          c = xRecordCompare(nCell, (void*)&pCell[2], pIdxKey, 0);
        }else{
          /* The record flows over onto one or more overflow pages. In
          ** this case the whole cell needs to be parsed, a buffer allocated
          ** and accessPayload() used to retrieve the record into the
          ** buffer before VdbeRecordCompare() can be called. */
          void *pCellKey;
          u8 * const pCellBody = pCell - pPage->childPtrSize;
................................................................................
          }
          pCur->aiIdx[pCur->iPage] = (u16)idx;
          rc = accessPayload(pCur, 0, nCell, (unsigned char*)pCellKey, 0);
          if( rc ){
            sqlite3_free(pCellKey);
            goto moveto_finish;
          }
          c = xRecordCompare(nCell, pCellKey, pIdxKey, 0);
          sqlite3_free(pCellKey);
        }
        if( c<0 ){
          lwr = idx+1;
        }else if( c>0 ){
          upr = idx-1;
        }else{
................................................................................
*************************************************************************
**
** This file contains code use to manipulate "Mem" structure.  A "Mem"
** stores a single value in the VDBE.  Mem is an opaque structure visible
** only within the VDBE.  Interface routines refer to a Mem using the
** name sqlite_value
*/

#ifdef SQLITE_DEBUG
/*
** Check invariants on a Mem object.
**
** This routine is intended for use inside of assert() statements, like
** this:    assert( sqlite3VdbeCheckMemInvariants(pMem) );
*/
SQLITE_PRIVATE int sqlite3VdbeCheckMemInvariants(Mem *p){
  /* The MEM_Dyn bit is set if and only if Mem.xDel is a non-NULL destructor
  ** function for Mem.z 
  */
  assert( (p->flags & MEM_Dyn)==0 || p->xDel!=0 );
  assert( (p->flags & MEM_Dyn)!=0 || p->xDel==0 );

  /* If p holds a string or blob, the Mem.z must point to exactly
  ** one of the following:
  **
  **   (1) Memory in Mem.zMalloc and managed by the Mem object
  **   (2) Memory to be freed using Mem.xDel
  **   (3) An ephermal string or blob
  **   (4) A static string or blob
  */
  if( (p->flags & (MEM_Str|MEM_Blob)) && p->z!=0 ){
    assert( 
      ((p->z==p->zMalloc)? 1 : 0) +
      ((p->flags&MEM_Dyn)!=0 ? 1 : 0) +
      ((p->flags&MEM_Ephem)!=0 ? 1 : 0) +
      ((p->flags&MEM_Static)!=0 ? 1 : 0) == 1
    );
  }

  return 1;
}
#endif


/*
** If pMem is an object with a valid string representation, this routine
** ensures the internal encoding for the string representation is
** 'desiredEnc', one of SQLITE_UTF8, SQLITE_UTF16LE or SQLITE_UTF16BE.
**
** If pMem is not a string object, or the encoding of the string
................................................................................
**
** If the bPreserve argument is true, then copy of the content of
** pMem->z into the new allocation.  pMem must be either a string or
** blob if bPreserve is true.  If bPreserve is false, any prior content
** in pMem->z is discarded.
*/
SQLITE_PRIVATE int sqlite3VdbeMemGrow(Mem *pMem, int n, int bPreserve){
  assert( sqlite3VdbeCheckMemInvariants(pMem) );





  assert( (pMem->flags&MEM_RowSet)==0 );

  /* If the bPreserve flag is set to true, then the memory cell must already
  ** contain a valid string or blob value.  */
  assert( bPreserve==0 || pMem->flags&(MEM_Blob|MEM_Str) );
  testcase( bPreserve && pMem->z==0 );

................................................................................
      pMem->z = pMem->zMalloc = sqlite3DbReallocOrFree(pMem->db, pMem->z, n);
      bPreserve = 0;
    }else{
      sqlite3DbFree(pMem->db, pMem->zMalloc);
      pMem->zMalloc = sqlite3DbMallocRaw(pMem->db, n);
    }
    if( pMem->zMalloc==0 ){
      VdbeMemRelease(pMem);
      pMem->z = 0;
      pMem->flags = MEM_Null;  
      return SQLITE_NOMEM;
    }
  }

  if( pMem->z && bPreserve && pMem->z!=pMem->zMalloc ){
    memcpy(pMem->zMalloc, pMem->z, pMem->n);
  }
  if( (pMem->flags&MEM_Dyn)!=0 ){
    assert( pMem->xDel!=0 && pMem->xDel!=SQLITE_DYNAMIC );
    pMem->xDel((void *)(pMem->z));
  }

  pMem->z = pMem->zMalloc;
  pMem->flags &= ~(MEM_Dyn|MEM_Ephem|MEM_Static);
  pMem->xDel = 0;
  return SQLITE_OK;
}

/*
** Make the given Mem object MEM_Dyn.  In other words, make it so
** that any TEXT or BLOB content is stored in memory obtained from
................................................................................
*/
SQLITE_PRIVATE void sqlite3VdbeMemReleaseExternal(Mem *p){
  assert( p->db==0 || sqlite3_mutex_held(p->db->mutex) );
  if( p->flags&MEM_Agg ){
    sqlite3VdbeMemFinalize(p, p->u.pDef);
    assert( (p->flags & MEM_Agg)==0 );
    sqlite3VdbeMemRelease(p);
  }else if( p->flags&MEM_Dyn ){
    assert( (p->flags&MEM_RowSet)==0 );
    assert( p->xDel!=SQLITE_DYNAMIC && p->xDel!=0 );
    p->xDel((void *)p->z);
    p->xDel = 0;
  }else if( p->flags&MEM_RowSet ){
    sqlite3RowSetClear(p->u.pRowSet);
  }else if( p->flags&MEM_Frame ){
    sqlite3VdbeMemSetNull(p);
  }
}

/*
** Release any memory held by the Mem. This may leave the Mem in an
** inconsistent state, for example with (Mem.z==0) and
** (Mem.flags==MEM_Str).
*/
SQLITE_PRIVATE void sqlite3VdbeMemRelease(Mem *p){
  assert( sqlite3VdbeCheckMemInvariants(p) );
  VdbeMemRelease(p);
  if( p->zMalloc ){
    sqlite3DbFree(p->db, p->zMalloc);
    p->zMalloc = 0;
  }
  p->z = 0;
  assert( p->xDel==0 );  /* Zeroed by VdbeMemRelease() above */
................................................................................
    pFrame->pParent = pFrame->v->pDelFrame;
    pFrame->v->pDelFrame = pFrame;
  }
  if( pMem->flags & MEM_RowSet ){
    sqlite3RowSetClear(pMem->u.pRowSet);
  }
  MemSetTypeFlag(pMem, MEM_Null);

}
SQLITE_PRIVATE void sqlite3ValueSetNull(sqlite3_value *p){
  sqlite3VdbeMemSetNull((Mem*)p); 
}

/*
** Delete any previous value and set the value to be a BLOB of length
** n containing all zeros.
*/
SQLITE_PRIVATE void sqlite3VdbeMemSetZeroBlob(Mem *pMem, int n){
  sqlite3VdbeMemRelease(pMem);
  pMem->flags = MEM_Blob|MEM_Zero;

  pMem->n = 0;
  if( n<0 ) n = 0;
  pMem->u.nZero = n;
  pMem->enc = SQLITE_UTF8;

#ifdef SQLITE_OMIT_INCRBLOB
  sqlite3VdbeMemGrow(pMem, n, 0);
................................................................................
** Delete any previous value and set the value stored in *pMem to val,
** manifest type INTEGER.
*/
SQLITE_PRIVATE void sqlite3VdbeMemSetInt64(Mem *pMem, i64 val){
  sqlite3VdbeMemRelease(pMem);
  pMem->u.i = val;
  pMem->flags = MEM_Int;

}

#ifndef SQLITE_OMIT_FLOATING_POINT
/*
** Delete any previous value and set the value stored in *pMem to val,
** manifest type REAL.
*/
................................................................................
SQLITE_PRIVATE void sqlite3VdbeMemSetDouble(Mem *pMem, double val){
  if( sqlite3IsNaN(val) ){
    sqlite3VdbeMemSetNull(pMem);
  }else{
    sqlite3VdbeMemRelease(pMem);
    pMem->r = val;
    pMem->flags = MEM_Real;

  }
}
#endif

/*
** Delete any previous value and set the value of pMem to be an
** empty boolean index.
................................................................................
SQLITE_PRIVATE int sqlite3VdbeMemCopy(Mem *pTo, const Mem *pFrom){
  int rc = SQLITE_OK;

  assert( (pFrom->flags & MEM_RowSet)==0 );
  VdbeMemRelease(pTo);
  memcpy(pTo, pFrom, MEMCELLSIZE);
  pTo->flags &= ~MEM_Dyn;
  pTo->xDel = 0;

  if( pTo->flags&(MEM_Str|MEM_Blob) ){
    if( 0==(pFrom->flags&MEM_Static) ){
      pTo->flags |= MEM_Ephem;
      rc = sqlite3VdbeMemMakeWriteable(pTo);
    }
  }
................................................................................
    pMem->xDel = xDel;
    flags |= ((xDel==SQLITE_STATIC)?MEM_Static:MEM_Dyn);
  }

  pMem->n = nByte;
  pMem->flags = flags;
  pMem->enc = (enc==0 ? SQLITE_UTF8 : enc);


#ifndef SQLITE_OMIT_UTF16
  if( pMem->enc!=SQLITE_UTF8 && sqlite3VdbeMemHandleBom(pMem) ){
    return SQLITE_NOMEM;
  }
#endif

................................................................................
  if( nByte>iLimit ){
    return SQLITE_TOOBIG;
  }

  return SQLITE_OK;
}


















































































































/*
** Move data out of a btree key or data field and into a Mem structure.
** The data or key is taken from the entry that pCur is currently pointing
** to.  offset and amt determine what portion of the data or key to retrieve.
** key is true to get the key or false to get data.  The result is written
** into the pMem element.
**
................................................................................
  }
  assert( zData!=0 );

  if( offset+amt<=available ){
    sqlite3VdbeMemRelease(pMem);
    pMem->z = &zData[offset];
    pMem->flags = MEM_Blob|MEM_Ephem;
    pMem->n = (int)amt;
  }else if( SQLITE_OK==(rc = sqlite3VdbeMemGrow(pMem, amt+2, 0)) ){



    if( key ){
      rc = sqlite3BtreeKey(pCur, offset, amt, pMem->z);
    }else{
      rc = sqlite3BtreeData(pCur, offset, amt, pMem->z);
    }
    if( rc==SQLITE_OK ){
      pMem->z[amt] = 0;
      pMem->z[amt+1] = 0;

      pMem->flags = MEM_Blob|MEM_Term;
      pMem->n = (int)amt;
    }else{
      sqlite3VdbeMemRelease(pMem);
    }
  }


  return rc;
}

/* This function is only available internally, it is not part of the
** external API. It works in a similar way to sqlite3_value_text(),
** except the data returned is in the encoding specified by the second
................................................................................
/*
** Create a new sqlite3_value object.
*/
SQLITE_PRIVATE sqlite3_value *sqlite3ValueNew(sqlite3 *db){
  Mem *p = sqlite3DbMallocZero(db, sizeof(*p));
  if( p ){
    p->flags = MEM_Null;

    p->db = db;
  }
  return p;
}

/*
** Context object passed by sqlite3Stat4ProbeSetValue() through to 
................................................................................
      nByte = sizeof(Mem) * nCol + ROUND8(sizeof(UnpackedRecord));
      pRec = (UnpackedRecord*)sqlite3DbMallocZero(db, nByte);
      if( pRec ){
        pRec->pKeyInfo = sqlite3KeyInfoOfIndex(p->pParse, pIdx);
        if( pRec->pKeyInfo ){
          assert( pRec->pKeyInfo->nField+pRec->pKeyInfo->nXField==nCol );
          assert( pRec->pKeyInfo->enc==ENC(db) );

          pRec->aMem = (Mem *)((u8*)pRec + ROUND8(sizeof(UnpackedRecord)));
          for(i=0; i<nCol; i++){
            pRec->aMem[i].flags = MEM_Null;

            pRec->aMem[i].db = db;
          }
        }else{
          sqlite3DbFree(db, pRec);
          pRec = 0;
        }
      }
................................................................................
    if( pVal==0 ) goto no_mem;
    if( ExprHasProperty(pExpr, EP_IntValue) ){
      sqlite3VdbeMemSetInt64(pVal, (i64)pExpr->u.iValue*negInt);
    }else{
      zVal = sqlite3MPrintf(db, "%s%s", zNeg, pExpr->u.zToken);
      if( zVal==0 ) goto no_mem;
      sqlite3ValueSetStr(pVal, -1, zVal, SQLITE_UTF8, SQLITE_DYNAMIC);

    }
    if( (op==TK_INTEGER || op==TK_FLOAT ) && affinity==SQLITE_AFF_NONE ){
      sqlite3ValueApplyAffinity(pVal, SQLITE_AFF_NUMERIC, SQLITE_UTF8);
    }else{
      sqlite3ValueApplyAffinity(pVal, affinity, SQLITE_UTF8);
    }
    if( pVal->flags & (MEM_Int|MEM_Real) ) pVal->flags &= ~MEM_Str;
................................................................................
  }else if( op==TK_UMINUS ) {
    /* This branch happens for multiple negative signs.  Ex: -(-5) */
    if( SQLITE_OK==sqlite3ValueFromExpr(db,pExpr->pLeft,enc,affinity,&pVal) 
     && pVal!=0
    ){
      sqlite3VdbeMemNumerify(pVal);
      if( pVal->u.i==SMALLEST_INT64 ){
        pVal->flags &= ~MEM_Int;
        pVal->flags |= MEM_Real;
        pVal->r = (double)SMALLEST_INT64;
      }else{
        pVal->u.i = -pVal->u.i;
      }
      pVal->r = -pVal->r;
      sqlite3ValueApplyAffinity(pVal, affinity, enc);
    }
  }else if( op==TK_NULL ){
................................................................................
    nVal = sqlite3Strlen30(zVal)-1;
    assert( zVal[nVal]=='\'' );
    sqlite3VdbeMemSetStr(pVal, sqlite3HexToBlob(db, zVal, nVal), nVal/2,
                         0, SQLITE_DYNAMIC);
  }
#endif




  *ppVal = pVal;
  return rc;

no_mem:
  db->mallocFailed = 1;
  sqlite3DbFree(db, zVal);
  assert( *ppVal==0 );
................................................................................
      pVal = valueNew(db, &alloc);
      if( pVal ){
        rc = sqlite3VdbeMemCopy((Mem*)pVal, &v->aVar[iBindVar-1]);
        if( rc==SQLITE_OK ){
          sqlite3ValueApplyAffinity(pVal, affinity, ENC(db));
        }
        pVal->db = pParse->db;

      }
    }
  }else{
    rc = valueFromExpr(db, pExpr, ENC(db), affinity, &pVal, &alloc);
  }
  *pbOk = (pVal!=0);

................................................................................
      for(pEnd=&p[N]; p<pEnd; p++){
        sqlite3DbFree(db, p->zMalloc);
      }
      return;
    }
    for(pEnd=&p[N]; p<pEnd; p++){
      assert( (&p[1])==pEnd || p[0].db==p[1].db );
      assert( sqlite3VdbeCheckMemInvariants(p) );

      /* This block is really an inlined version of sqlite3VdbeMemRelease()
      ** that takes advantage of the fact that the memory cell value is 
      ** being set to NULL after releasing any dynamic resources.
      **
      ** The justification for duplicating code is that according to 
      ** callgrind, this causes a certain test case to hit the CPU 4.7 
................................................................................
      for(j=0; i>=apSub[j]->nOp; j++){
        i -= apSub[j]->nOp;
      }
      pOp = &apSub[j]->aOp[i];
    }
    if( p->explain==1 ){
      pMem->flags = MEM_Int;

      pMem->u.i = i;                                /* Program counter */
      pMem++;
  
      pMem->flags = MEM_Static|MEM_Str|MEM_Term;
      pMem->z = (char*)sqlite3OpcodeName(pOp->opcode); /* Opcode */
      assert( pMem->z!=0 );
      pMem->n = sqlite3Strlen30(pMem->z);

      pMem->enc = SQLITE_UTF8;
      pMem++;

      /* When an OP_Program opcode is encounter (the only opcode that has
      ** a P4_SUBPROGRAM argument), expand the size of the array of subprograms
      ** kept in p->aMem[9].z to hold the new program - assuming this subprogram
      ** has not already been seen.
................................................................................
          pSub->n = nSub*sizeof(SubProgram*);
        }
      }
    }

    pMem->flags = MEM_Int;
    pMem->u.i = pOp->p1;                          /* P1 */

    pMem++;

    pMem->flags = MEM_Int;
    pMem->u.i = pOp->p2;                          /* P2 */

    pMem++;

    pMem->flags = MEM_Int;
    pMem->u.i = pOp->p3;                          /* P3 */

    pMem++;

    if( sqlite3VdbeMemGrow(pMem, 32, 0) ){            /* P4 */
      assert( p->db->mallocFailed );
      return SQLITE_ERROR;
    }
    pMem->flags = MEM_Str|MEM_Term;
    zP4 = displayP4(pOp, pMem->z, 32);
    if( zP4!=pMem->z ){
      sqlite3VdbeMemSetStr(pMem, zP4, -1, SQLITE_UTF8, 0);
    }else{
      assert( pMem->z!=0 );
      pMem->n = sqlite3Strlen30(pMem->z);
      pMem->enc = SQLITE_UTF8;
    }

    pMem++;

    if( p->explain==1 ){
      if( sqlite3VdbeMemGrow(pMem, 4, 0) ){
        assert( p->db->mallocFailed );
        return SQLITE_ERROR;
      }
      pMem->flags = MEM_Str|MEM_Term;
      pMem->n = 2;
      sqlite3_snprintf(3, pMem->z, "%.2x", pOp->p5);   /* P5 */

      pMem->enc = SQLITE_UTF8;
      pMem++;
  
#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
      if( sqlite3VdbeMemGrow(pMem, 500, 0) ){
        assert( p->db->mallocFailed );
        return SQLITE_ERROR;
      }
      pMem->flags = MEM_Str|MEM_Term;
      pMem->n = displayComment(pOp, zP4, pMem->z, 500);

      pMem->enc = SQLITE_UTF8;
#else
      pMem->flags = MEM_Null;                       /* Comment */

#endif
    }

    p->nResColumn = 8 - 4*(p->explain-1);
    p->pResultSet = &p->aMem[1];
    p->rc = SQLITE_OK;
    rc = SQLITE_ROW;
................................................................................
    return len;
  }

  /* NULL or constants 0 or 1 */
  return 0;
}

/* Input "x" is a sequence of unsigned characters that represent a
** big-endian integer.  Return the equivalent native integer
*/
#define ONE_BYTE_INT(x)    ((i8)(x)[0])
#define TWO_BYTE_INT(x)    (256*(i8)((x)[0])|(x)[1])
#define THREE_BYTE_INT(x)  (65536*(i8)((x)[0])|((x)[1]<<8)|(x)[2])
#define FOUR_BYTE_UINT(x)  (((u32)(x)[0]<<24)|((x)[1]<<16)|((x)[2]<<8)|(x)[3])

/*
** Deserialize the data blob pointed to by buf as serial type serial_type
** and store the result in pMem.  Return the number of bytes read.
*/ 
SQLITE_PRIVATE u32 sqlite3VdbeSerialGet(
  const unsigned char *buf,     /* Buffer to deserialize from */
  u32 serial_type,              /* Serial type to deserialize */
  Mem *pMem                     /* Memory cell to write value into */
){
  u64 x;
  u32 y;

  switch( serial_type ){
    case 10:   /* Reserved for future use */
    case 11:   /* Reserved for future use */
    case 0: {  /* NULL */
      pMem->flags = MEM_Null;
      break;
    }
    case 1: { /* 1-byte signed integer */
      pMem->u.i = ONE_BYTE_INT(buf);
      pMem->flags = MEM_Int;
      return 1;
    }
    case 2: { /* 2-byte signed integer */

      pMem->u.i = TWO_BYTE_INT(buf);
      pMem->flags = MEM_Int;
      return 2;
    }
    case 3: { /* 3-byte signed integer */

      pMem->u.i = THREE_BYTE_INT(buf);
      pMem->flags = MEM_Int;
      return 3;
    }
    case 4: { /* 4-byte signed integer */
      y = FOUR_BYTE_UINT(buf);
      pMem->u.i = (i64)*(int*)&y;
      pMem->flags = MEM_Int;
      return 4;
    }
    case 5: { /* 6-byte signed integer */
      pMem->u.i = FOUR_BYTE_UINT(buf+2) + (((i64)1)<<32)*TWO_BYTE_INT(buf);



      pMem->flags = MEM_Int;
      return 6;
    }
    case 6:   /* 8-byte signed integer */
    case 7: { /* IEEE floating point */
#if !defined(NDEBUG) && !defined(SQLITE_OMIT_FLOATING_POINT)
      /* Verify that integers and floating point values use the same
................................................................................
      */
      static const u64 t1 = ((u64)0x3ff00000)<<32;
      static const double r1 = 1.0;
      u64 t2 = t1;
      swapMixedEndianFloat(t2);
      assert( sizeof(r1)==sizeof(t2) && memcmp(&r1, &t2, sizeof(r1))==0 );
#endif
      x = FOUR_BYTE_UINT(buf);
      y = FOUR_BYTE_UINT(buf+4);
      x = (x<<32) | y;
      if( serial_type==6 ){
        pMem->u.i = *(i64*)&x;
        pMem->flags = MEM_Int;
      }else{
        assert( sizeof(x)==8 && sizeof(pMem->r)==8 );
        swapMixedEndianFloat(x);
................................................................................
  const unsigned char *aKey = (const unsigned char *)pKey;
  int d; 
  u32 idx;                        /* Offset in aKey[] to read from */
  u16 u;                          /* Unsigned loop counter */
  u32 szHdr;
  Mem *pMem = p->aMem;

  p->default_rc = 0;
  assert( EIGHT_BYTE_ALIGNMENT(pMem) );
  idx = getVarint32(aKey, szHdr);
  d = szHdr;
  u = 0;
  while( idx<szHdr && u<p->nField && d<=nKey ){
    u32 serial_type;

................................................................................
    pMem++;
    u++;
  }
  assert( u<=pKeyInfo->nField + 1 );
  p->nField = u;
}

#if SQLITE_DEBUG
/*
** This function compares two index or table record keys in the same way

** as the sqlite3VdbeRecordCompare() routine. Unlike VdbeRecordCompare(),
** this function deserializes and compares values using the
** sqlite3VdbeSerialGet() and sqlite3MemCompare() functions. It is used
** in assert() statements to ensure that the optimized code in
** sqlite3VdbeRecordCompare() returns results with these two primitives.








*/
static int vdbeRecordCompareDebug(
  int nKey1, const void *pKey1, /* Left key */
  const UnpackedRecord *pPKey2  /* Right key */
){
  u32 d1;            /* Offset into aKey[] of next data element */
  u32 idx1;          /* Offset into aKey[] of next header element */
  u32 szHdr1;        /* Number of bytes in header */
  int i = 0;
  int rc = 0;
  const unsigned char *aKey1 = (const unsigned char *)pKey1;
................................................................................
  /* No memory allocation is ever used on mem1.  Prove this using
  ** the following assert().  If the assert() fails, it indicates a
  ** memory leak and a need to call sqlite3VdbeMemRelease(&mem1).
  */
  assert( mem1.zMalloc==0 );

  /* rc==0 here means that one of the keys ran out of fields and
  ** all the fields up to that point were equal. Return the the default_rc
  ** value.  */
  return pPKey2->default_rc;

}
#endif


/*
** Both *pMem1 and *pMem2 contain string values. Compare the two values
** using the collation sequence pColl. As usual, return a negative , zero
** or positive value if *pMem1 is less than, equal to or greater than 
** *pMem2, respectively. Similar in spirit to "rc = (*pMem1) - (*pMem2);".
*/
static int vdbeCompareMemString(
  const Mem *pMem1,
  const Mem *pMem2,
  const CollSeq *pColl
){
  if( pMem1->enc==pColl->enc ){
    /* The strings are already in the correct encoding.  Call the
     ** comparison function directly */
    return pColl->xCmp(pColl->pUser,pMem1->n,pMem1->z,pMem2->n,pMem2->z);
  }else{
    int rc;
    const void *v1, *v2;
    int n1, n2;
    Mem c1;
    Mem c2;
    memset(&c1, 0, sizeof(c1));
    memset(&c2, 0, sizeof(c2));
    sqlite3VdbeMemShallowCopy(&c1, pMem1, MEM_Ephem);
    sqlite3VdbeMemShallowCopy(&c2, pMem2, MEM_Ephem);
    v1 = sqlite3ValueText((sqlite3_value*)&c1, pColl->enc);
    n1 = v1==0 ? 0 : c1.n;
    v2 = sqlite3ValueText((sqlite3_value*)&c2, pColl->enc);
    n2 = v2==0 ? 0 : c2.n;
    rc = pColl->xCmp(pColl->pUser, n1, v1, n2, v2);
    sqlite3VdbeMemRelease(&c1);
    sqlite3VdbeMemRelease(&c2);
    return rc;
  }
}

/*
** Compare the values contained by the two memory cells, returning
** negative, zero or positive if pMem1 is less than, equal to, or greater
** than pMem2. Sorting order is NULL's first, followed by numbers (integers
** and reals) sorted numerically, followed by text ordered by the collating
** sequence pColl and finally blob's ordered by memcmp().
**
** Two NULL values are considered equal by this function.
*/
SQLITE_PRIVATE int sqlite3MemCompare(const Mem *pMem1, const Mem *pMem2, const CollSeq *pColl){
  int rc;
  int f1, f2;
  int combined_flags;

  f1 = pMem1->flags;
  f2 = pMem2->flags;
  combined_flags = f1|f2;
  assert( (combined_flags & MEM_RowSet)==0 );
 
  /* If one value is NULL, it is less than the other. If both values
  ** are NULL, return 0.
  */
  if( combined_flags&MEM_Null ){
    return (f2&MEM_Null) - (f1&MEM_Null);
  }

  /* If one value is a number and the other is not, the number is less.
  ** If both are numbers, compare as reals if one is a real, or as integers
  ** if both values are integers.
  */
  if( combined_flags&(MEM_Int|MEM_Real) ){
    double r1, r2;
    if( (f1 & f2 & MEM_Int)!=0 ){
      if( pMem1->u.i < pMem2->u.i ) return -1;
      if( pMem1->u.i > pMem2->u.i ) return 1;
      return 0;
    }
    if( (f1&MEM_Real)!=0 ){
      r1 = pMem1->r;
    }else if( (f1&MEM_Int)!=0 ){
      r1 = (double)pMem1->u.i;
    }else{
      return 1;
    }
    if( (f2&MEM_Real)!=0 ){
      r2 = pMem2->r;
    }else if( (f2&MEM_Int)!=0 ){
      r2 = (double)pMem2->u.i;
    }else{
      return -1;
    }
    if( r1<r2 ) return -1;
    if( r1>r2 ) return 1;
    return 0;
  }

  /* If one value is a string and the other is a blob, the string is less.
  ** If both are strings, compare using the collating functions.
  */
  if( combined_flags&MEM_Str ){
    if( (f1 & MEM_Str)==0 ){
      return 1;
    }
    if( (f2 & MEM_Str)==0 ){
      return -1;
    }

    assert( pMem1->enc==pMem2->enc );
    assert( pMem1->enc==SQLITE_UTF8 || 
            pMem1->enc==SQLITE_UTF16LE || pMem1->enc==SQLITE_UTF16BE );

    /* The collation sequence must be defined at this point, even if
    ** the user deletes the collation sequence after the vdbe program is
    ** compiled (this was not always the case).
    */
    assert( !pColl || pColl->xCmp );

    if( pColl ){
      return vdbeCompareMemString(pMem1, pMem2, pColl);
    }
    /* If a NULL pointer was passed as the collate function, fall through
    ** to the blob case and use memcmp().  */
  }
 
  /* Both values must be blobs.  Compare using memcmp().  */
  rc = memcmp(pMem1->z, pMem2->z, (pMem1->n>pMem2->n)?pMem2->n:pMem1->n);
  if( rc==0 ){

    rc = pMem1->n - pMem2->n;
  }
  return rc;
}


/*
** The first argument passed to this function is a serial-type that
** corresponds to an integer - all values between 1 and 9 inclusive 
** except 7. The second points to a buffer containing an integer value
** serialized according to serial_type. This function deserializes
** and returns the value.
*/
static i64 vdbeRecordDecodeInt(u32 serial_type, const u8 *aKey){
  u32 y;
  assert( CORRUPT_DB || (serial_type>=1 && serial_type<=9 && serial_type!=7) );
  switch( serial_type ){
    case 0:
    case 1:
      return ONE_BYTE_INT(aKey);
    case 2:
      return TWO_BYTE_INT(aKey);
    case 3:
      return THREE_BYTE_INT(aKey);
    case 4: {
      y = FOUR_BYTE_UINT(aKey);
      return (i64)*(int*)&y;
    }
    case 5: {
      return FOUR_BYTE_UINT(aKey+2) + (((i64)1)<<32)*TWO_BYTE_INT(aKey);
    }
    case 6: {
      u64 x = FOUR_BYTE_UINT(aKey);
      x = (x<<32) | FOUR_BYTE_UINT(aKey+4);
      return (i64)*(i64*)&x;
    }
  }

  return (serial_type - 8);
}

/*
** This function compares the two table rows or index records
** specified by {nKey1, pKey1} and pPKey2.  It returns a negative, zero
** or positive integer if key1 is less than, equal to or 
** greater than key2.  The {nKey1, pKey1} key must be a blob
** created by th OP_MakeRecord opcode of the VDBE.  The pPKey2
** key must be a parsed key such as obtained from
** sqlite3VdbeParseRecord.
**
** If argument bSkip is non-zero, it is assumed that the caller has already
** determined that the first fields of the keys are equal.
**
** Key1 and Key2 do not have to contain the same number of fields. If all 
** fields that appear in both keys are equal, then pPKey2->default_rc is 
** returned.
*/
SQLITE_PRIVATE int sqlite3VdbeRecordCompare(
  int nKey1, const void *pKey1,   /* Left key */
  const UnpackedRecord *pPKey2,   /* Right key */
  int bSkip                       /* If true, skip the first field */
){
  u32 d1;                         /* Offset into aKey[] of next data element */
  int i;                          /* Index of next field to compare */
  u32 szHdr1;                     /* Size of record header in bytes */
  u32 idx1;                       /* Offset of first type in header */
  int rc = 0;                     /* Return value */
  Mem *pRhs = pPKey2->aMem;       /* Next field of pPKey2 to compare */
  KeyInfo *pKeyInfo = pPKey2->pKeyInfo;
  const unsigned char *aKey1 = (const unsigned char *)pKey1;
  Mem mem1;

  /* If bSkip is true, then the caller has already determined that the first
  ** two elements in the keys are equal. Fix the various stack variables so
  ** that this routine begins comparing at the second field. */
  if( bSkip ){
    u32 s1;
    idx1 = 1 + getVarint32(&aKey1[1], s1);
    szHdr1 = aKey1[0];
    d1 = szHdr1 + sqlite3VdbeSerialTypeLen(s1);
    i = 1;
    pRhs++;
  }else{
    idx1 = getVarint32(aKey1, szHdr1);
    d1 = szHdr1;
    i = 0;
  }

  VVA_ONLY( mem1.zMalloc = 0; ) /* Only needed by assert() statements */
  assert( pPKey2->pKeyInfo->nField+pPKey2->pKeyInfo->nXField>=pPKey2->nField 
       || CORRUPT_DB );
  assert( pPKey2->pKeyInfo->aSortOrder!=0 );
  assert( pPKey2->pKeyInfo->nField>0 );
  assert( idx1<=szHdr1 || CORRUPT_DB );
  do{
    u32 serial_type;

    /* RHS is an integer */
    if( pRhs->flags & MEM_Int ){
      serial_type = aKey1[idx1];
      if( serial_type>=12 ){
        rc = +1;
      }else if( serial_type==0 ){
        rc = -1;


      }else if( serial_type==7 ){
        double rhs = (double)pRhs->u.i;
        sqlite3VdbeSerialGet(&aKey1[d1], serial_type, &mem1);
        if( mem1.r<rhs ){
          rc = -1;
        }else if( mem1.r>rhs ){
          rc = +1;
        }
      }else{
        i64 lhs = vdbeRecordDecodeInt(serial_type, &aKey1[d1]);
        i64 rhs = pRhs->u.i;
        if( lhs<rhs ){
          rc = -1;
        }else if( lhs>rhs ){
          rc = +1;
        }
      }
    }

    /* RHS is real */
    else if( pRhs->flags & MEM_Real ){
      serial_type = aKey1[idx1];
      if( serial_type>=12 ){
        rc = +1;
      }else if( serial_type==0 ){
        rc = -1;
      }else{
        double rhs = pRhs->r;
        double lhs;
        sqlite3VdbeSerialGet(&aKey1[d1], serial_type, &mem1);
        if( serial_type==7 ){
          lhs = mem1.r;
        }else{
          lhs = (double)mem1.u.i;
        }
        if( lhs<rhs ){
          rc = -1;
        }else if( lhs>rhs ){
          rc = +1;
        }
      }
    }

    /* RHS is a string */
    else if( pRhs->flags & MEM_Str ){
      getVarint32(&aKey1[idx1], serial_type);
      if( serial_type<12 ){
        rc = -1;
      }else if( !(serial_type & 0x01) ){
        rc = +1;
      }else{
        mem1.n = (serial_type - 12) / 2;
        if( (d1+mem1.n) > (unsigned)nKey1 ){
          rc = 1;                /* Corruption */
        }else if( pKeyInfo->aColl[i] ){
          mem1.enc = pKeyInfo->enc;
          mem1.db = pKeyInfo->db;
          mem1.flags = MEM_Str;
          mem1.z = (char*)&aKey1[d1];
          rc = vdbeCompareMemString(&mem1, pRhs, pKeyInfo->aColl[i]);
        }else{
          int nCmp = MIN(mem1.n, pRhs->n);
          rc = memcmp(&aKey1[d1], pRhs->z, nCmp);
          if( rc==0 ) rc = mem1.n - pRhs->n; 
        }
      }
    }

    /* RHS is a blob */
    else if( pRhs->flags & MEM_Blob ){
      getVarint32(&aKey1[idx1], serial_type);
      if( serial_type<12 || (serial_type & 0x01) ){
        rc = -1;
      }else{
        int nStr = (serial_type - 12) / 2;
        if( (d1+nStr) > (unsigned)nKey1 ){
          rc = 1;                /* Corruption */
        }else{
          int nCmp = MIN(nStr, pRhs->n);
          rc = memcmp(&aKey1[d1], pRhs->z, nCmp);
          if( rc==0 ) rc = nStr - pRhs->n;
        }
      }
    }

    /* RHS is null */
    else{
      serial_type = aKey1[idx1];
      rc = (serial_type!=0);
    }

    if( rc!=0 ){
      if( pKeyInfo->aSortOrder[i] ){
        rc = -rc;
      }
      assert( CORRUPT_DB
          || (rc<0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)<0)
          || (rc>0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)>0)
          || pKeyInfo->db->mallocFailed
      );
      assert( mem1.zMalloc==0 );  /* See comment below */
      return rc;
    }

    i++;
    pRhs++;
    d1 += sqlite3VdbeSerialTypeLen(serial_type);
    idx1 += sqlite3VarintLen(serial_type);
  }while( idx1<(unsigned)szHdr1 && i<pPKey2->nField && d1<=(unsigned)nKey1 );

  /* No memory allocation is ever used on mem1.  Prove this using
  ** the following assert().  If the assert() fails, it indicates a
  ** memory leak and a need to call sqlite3VdbeMemRelease(&mem1).  */
  assert( mem1.zMalloc==0 );

  /* rc==0 here means that one or both of the keys ran out of fields and
  ** all the fields up to that point were equal. Return the the default_rc
  ** value.  */
  assert( CORRUPT_DB 
       || pPKey2->default_rc==vdbeRecordCompareDebug(nKey1, pKey1, pPKey2) 
  );
  return pPKey2->default_rc;
}

/*
** This function is an optimized version of sqlite3VdbeRecordCompare() 
** that (a) the first field of pPKey2 is an integer, and (b) the 
** size-of-header varint at the start of (pKey1/nKey1) fits in a single
** byte (i.e. is less than 128).
*/
static int vdbeRecordCompareInt(
  int nKey1, const void *pKey1, /* Left key */
  const UnpackedRecord *pPKey2, /* Right key */
  int bSkip                     /* Ignored */
){
  const u8 *aKey = &((const u8*)pKey1)[*(const u8*)pKey1 & 0x3F];
  int serial_type = ((const u8*)pKey1)[1];
  int res;
  u32 y;
  u64 x;
  i64 v = pPKey2->aMem[0].u.i;
  i64 lhs;
  UNUSED_PARAMETER(bSkip);

  assert( bSkip==0 );
  switch( serial_type ){
    case 1: { /* 1-byte signed integer */
      lhs = ONE_BYTE_INT(aKey);
      break;
    }
    case 2: { /* 2-byte signed integer */
      lhs = TWO_BYTE_INT(aKey);
      break;
    }
    case 3: { /* 3-byte signed integer */
      lhs = THREE_BYTE_INT(aKey);
      break;
    }
    case 4: { /* 4-byte signed integer */
      y = FOUR_BYTE_UINT(aKey);
      lhs = (i64)*(int*)&y;
      break;
    }
    case 5: { /* 6-byte signed integer */
      lhs = FOUR_BYTE_UINT(aKey+2) + (((i64)1)<<32)*TWO_BYTE_INT(aKey);
      break;
    }
    case 6: { /* 8-byte signed integer */
      x = FOUR_BYTE_UINT(aKey);
      x = (x<<32) | FOUR_BYTE_UINT(aKey+4);
      lhs = *(i64*)&x;
      break;
    }
    case 8: 
      lhs = 0;
      break;
    case 9:
      lhs = 1;
      break;

    /* This case could be removed without changing the results of running
    ** this code. Including it causes gcc to generate a faster switch 
    ** statement (since the range of switch targets now starts at zero and
    ** is contiguous) but does not cause any duplicate code to be generated
    ** (as gcc is clever enough to combine the two like cases). Other 
    ** compilers might be similar.  */ 
    case 0: case 7:
      return sqlite3VdbeRecordCompare(nKey1, pKey1, pPKey2, 0);

    default:
      return sqlite3VdbeRecordCompare(nKey1, pKey1, pPKey2, 0);
  }

  if( v>lhs ){
    res = pPKey2->r1;
  }else if( v<lhs ){
    res = pPKey2->r2;
  }else if( pPKey2->nField>1 ){
    /* The first fields of the two keys are equal. Compare the trailing 
    ** fields.  */
    res = sqlite3VdbeRecordCompare(nKey1, pKey1, pPKey2, 1);
  }else{
    /* The first fields of the two keys are equal and there are no trailing
    ** fields. Return pPKey2->default_rc in this case. */
    res = pPKey2->default_rc;
  }

  assert( (res==0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)==0)
       || (res<0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)<0)
       || (res>0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)>0)
       || CORRUPT_DB
  );
  return res;
}

/*
** This function is an optimized version of sqlite3VdbeRecordCompare() 
** that (a) the first field of pPKey2 is a string, that (b) the first field
** uses the collation sequence BINARY and (c) that the size-of-header varint 
** at the start of (pKey1/nKey1) fits in a single byte.
*/
static int vdbeRecordCompareString(
  int nKey1, const void *pKey1, /* Left key */
  const UnpackedRecord *pPKey2, /* Right key */
  int bSkip
){
  const u8 *aKey1 = (const u8*)pKey1;
  int serial_type;
  int res;
  UNUSED_PARAMETER(bSkip);

  assert( bSkip==0 );
  getVarint32(&aKey1[1], serial_type);

  if( serial_type<12 ){
    res = pPKey2->r1;      /* (pKey1/nKey1) is a number or a null */
  }else if( !(serial_type & 0x01) ){ 
    res = pPKey2->r2;      /* (pKey1/nKey1) is a blob */
  }else{
    int nCmp;
    int nStr;
    int szHdr = aKey1[0];

    nStr = (serial_type-12) / 2;
    if( (szHdr + nStr) > nKey1 ) return 0;    /* Corruption */
    nCmp = MIN( pPKey2->aMem[0].n, nStr );
    res = memcmp(&aKey1[szHdr], pPKey2->aMem[0].z, nCmp);

    if( res==0 ){
      res = nStr - pPKey2->aMem[0].n;
      if( res==0 ){
        if( pPKey2->nField>1 ){
          res = sqlite3VdbeRecordCompare(nKey1, pKey1, pPKey2, 1);
        }else{
          res = pPKey2->default_rc;
        }
      }else if( res>0 ){
        res = pPKey2->r2;
      }else{
        res = pPKey2->r1;
      }
    }else if( res>0 ){
      res = pPKey2->r2;
    }else{
      res = pPKey2->r1;
    }
  }

  assert( (res==0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)==0)
       || (res<0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)<0)
       || (res>0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)>0)
       || CORRUPT_DB
  );
  return res;
}

/*
** Return a pointer to an sqlite3VdbeRecordCompare() compatible function
** suitable for comparing serialized records to the unpacked record passed
** as the only argument.
*/
SQLITE_PRIVATE RecordCompare sqlite3VdbeFindCompare(UnpackedRecord *p){
  /* varintRecordCompareInt() and varintRecordCompareString() both assume
  ** that the size-of-header varint that occurs at the start of each record
  ** fits in a single byte (i.e. is 127 or less). varintRecordCompareInt()
  ** also assumes that it is safe to overread a buffer by at least the 
  ** maximum possible legal header size plus 8 bytes. Because there is
  ** guaranteed to be at least 74 (but not 136) bytes of padding following each
  ** buffer passed to varintRecordCompareInt() this makes it convenient to
  ** limit the size of the header to 64 bytes in cases where the first field
  ** is an integer.
  **
  ** The easiest way to enforce this limit is to consider only records with
  ** 13 fields or less. If the first field is an integer, the maximum legal
  ** header size is (12*5 + 1 + 1) bytes.  */
  if( (p->pKeyInfo->nField + p->pKeyInfo->nXField)<=13 ){
    int flags = p->aMem[0].flags;
    if( p->pKeyInfo->aSortOrder[0] ){
      p->r1 = 1;
      p->r2 = -1;
    }else{
      p->r1 = -1;
      p->r2 = 1;
    }
    if( (flags & MEM_Int) ){
      return vdbeRecordCompareInt;
    }
    if( (flags & (MEM_Int|MEM_Real|MEM_Null|MEM_Blob))==0 
        && p->pKeyInfo->aColl[0]==0 
    ){
      return vdbeRecordCompareString;
    }
  }

  return sqlite3VdbeRecordCompare;
}

/*
** pCur points at an index entry created using the OP_MakeRecord opcode.
** Read the rowid (the last field in the record) and store it in *rowid.
** Return SQLITE_OK if everything works, or an error code otherwise.
**
** pCur might be pointing to text obtained from a corrupt database file.
................................................................................
**
** pUnpacked is either created without a rowid or is truncated so that it
** omits the rowid at the end.  The rowid at the end of the index entry
** is ignored as well.  Hence, this routine only compares the prefixes 
** of the keys prior to the final rowid, not the entire key.
*/
SQLITE_PRIVATE int sqlite3VdbeIdxKeyCompare(
  VdbeCursor *pC,                  /* The cursor to compare against */
  const UnpackedRecord *pUnpacked, /* Unpacked version of key */
  int *res                         /* Write the comparison result here */
){
  i64 nCellKey = 0;
  int rc;
  BtCursor *pCur = pC->pCursor;
  Mem m;

  assert( sqlite3BtreeCursorIsValid(pCur) );
  VVA_ONLY(rc =) sqlite3BtreeKeySize(pCur, &nCellKey);
  assert( rc==SQLITE_OK );    /* pCur is always valid so KeySize cannot fail */
  /* nCellKey will always be between 0 and 0xffffffff because of the way
  ** that btreeParseCellPtr() and sqlite3GetVarint32() are implemented */
  if( nCellKey<=0 || nCellKey>0x7fffffff ){
    *res = 0;
    return SQLITE_CORRUPT_BKPT;
  }
  memset(&m, 0, sizeof(m));
  rc = sqlite3VdbeMemFromBtree(pC->pCursor, 0, (u32)nCellKey, 1, &m);
  if( rc ){
    return rc;
  }

  *res = sqlite3VdbeRecordCompare(m.n, m.z, pUnpacked, 0);
  sqlite3VdbeMemRelease(&m);
  return SQLITE_OK;
}

/*
** This routine sets the value to be returned by subsequent calls to
** sqlite3_changes() on the database handle 'db'. 
................................................................................
  if( v ){
    Mem *pMem = &v->aVar[iVar-1];
    if( 0==(pMem->flags & MEM_Null) ){
      sqlite3_value *pRet = sqlite3ValueNew(v->db);
      if( pRet ){
        sqlite3VdbeMemCopy((Mem *)pRet, pMem);
        sqlite3ValueApplyAffinity(pRet, aff, SQLITE_UTF8);

      }
      return pRet;
    }
  }
  return 0;
}

................................................................................
** The following routines extract information from a Mem or sqlite3_value
** structure.
*/
SQLITE_API const void *sqlite3_value_blob(sqlite3_value *pVal){
  Mem *p = (Mem*)pVal;
  if( p->flags & (MEM_Blob|MEM_Str) ){
    sqlite3VdbeMemExpandBlob(p);

    p->flags |= MEM_Blob;
    return p->n ? p->z : 0;
  }else{
    return sqlite3_value_text(pVal);
  }
}
SQLITE_API int sqlite3_value_bytes(sqlite3_value *pVal){
................................................................................
     SQLITE_FLOAT,    /* 0x1a */
     SQLITE_NULL,     /* 0x1b */
     SQLITE_INTEGER,  /* 0x1c */
     SQLITE_NULL,     /* 0x1d */
     SQLITE_INTEGER,  /* 0x1e */
     SQLITE_NULL,     /* 0x1f */
  };
  return aType[pVal->flags&MEM_AffMask];
}

/**************************** sqlite3_result_  *******************************
** The following routines are used by user-defined functions to specify
** the function result.
**
** The setStrOrError() funtion calls sqlite3VdbeMemSetStr() to store the
................................................................................
*/
SQLITE_API int sqlite3_data_count(sqlite3_stmt *pStmt){
  Vdbe *pVm = (Vdbe *)pStmt;
  if( pVm==0 || pVm->pResultSet==0 ) return 0;
  return pVm->nResColumn;
}

/*
** Return a pointer to static memory containing an SQL NULL value.
*/
static const Mem *columnNullValue(void){
  /* Even though the Mem structure contains an element
  ** of type i64, on certain architectures (x86) with certain compiler
  ** switches (-Os), gcc may align this Mem object on a 4-byte boundary
  ** instead of an 8-byte one. This all works fine, except that when
  ** running with SQLITE_DEBUG defined the SQLite code sometimes assert()s
  ** that a Mem structure is located on an 8-byte boundary. To prevent
  ** these assert()s from failing, when building with SQLITE_DEBUG defined
  ** using gcc, we force nullMem to be 8-byte aligned using the magical
  ** __attribute__((aligned(8))) macro.  */
  static const Mem nullMem 
#if defined(SQLITE_DEBUG) && defined(__GNUC__)
    __attribute__((aligned(8))) 
#endif
    = {0, "", (double)0, {0}, 0, MEM_Null, 0,
#ifdef SQLITE_DEBUG
       0, 0,  /* pScopyFrom, pFiller */
#endif
       0, 0 };
  return &nullMem;
}

/*
** Check to see if column iCol of the given statement is valid.  If
** it is, return a pointer to the Mem for the value of that column.
** If iCol is not valid, return a pointer to a Mem which has a value
** of NULL.
*/
................................................................................
  Mem *pOut;

  pVm = (Vdbe *)pStmt;
  if( pVm && pVm->pResultSet!=0 && i<pVm->nResColumn && i>=0 ){
    sqlite3_mutex_enter(pVm->db->mutex);
    pOut = &pVm->pResultSet[i];
  }else{





















    if( pVm && ALWAYS(pVm->db) ){
      sqlite3_mutex_enter(pVm->db->mutex);
      sqlite3Error(pVm->db, SQLITE_RANGE, 0);
    }
    pOut = (Mem*)columnNullValue();
  }
  return pOut;
}

/*
** This function is called after invoking an sqlite3_value_XXX function on a 
** column value (i.e. a value returned by evaluating an SQL expression in the
................................................................................
** a pointer to a dynamically allocated string where some other entity
** is responsible for deallocating that string.  Because the register
** does not control the string, it might be deleted without the register
** knowing it.
**
** This routine converts an ephemeral string into a dynamically allocated
** string that the register itself controls.  In other words, it
** converts an MEM_Ephem string into a string with P.z==P.zMalloc.
*/
#define Deephemeralize(P) \
   if( ((P)->flags&MEM_Ephem)!=0 \
       && sqlite3VdbeMemMakeWriteable(P) ){ goto no_mem;}

/* Return true if the cursor was opened using the OP_OpenSorter opcode. */
#define isSorter(x) ((x)->pSorter!=0)
................................................................................
** loss of information and return the revised type of the argument.
*/
SQLITE_API int sqlite3_value_numeric_type(sqlite3_value *pVal){
  int eType = sqlite3_value_type(pVal);
  if( eType==SQLITE_TEXT ){
    Mem *pMem = (Mem*)pVal;
    applyNumericAffinity(pMem);

    eType = sqlite3_value_type(pVal);
  }
  return eType;
}

/*
** Exported version of applyAffinity(). This one works on sqlite3_value*, 
................................................................................

    /* Sanity checking on other operands */
#ifdef SQLITE_DEBUG
    if( (pOp->opflags & OPFLG_IN1)!=0 ){
      assert( pOp->p1>0 );
      assert( pOp->p1<=(p->nMem-p->nCursor) );
      assert( memIsValid(&aMem[pOp->p1]) );
      assert( sqlite3VdbeCheckMemInvariants(&aMem[pOp->p1]) );
      REGISTER_TRACE(pOp->p1, &aMem[pOp->p1]);
    }
    if( (pOp->opflags & OPFLG_IN2)!=0 ){
      assert( pOp->p2>0 );
      assert( pOp->p2<=(p->nMem-p->nCursor) );
      assert( memIsValid(&aMem[pOp->p2]) );
      assert( sqlite3VdbeCheckMemInvariants(&aMem[pOp->p2]) );
      REGISTER_TRACE(pOp->p2, &aMem[pOp->p2]);
    }
    if( (pOp->opflags & OPFLG_IN3)!=0 ){
      assert( pOp->p3>0 );
      assert( pOp->p3<=(p->nMem-p->nCursor) );
      assert( memIsValid(&aMem[pOp->p3]) );
      assert( sqlite3VdbeCheckMemInvariants(&aMem[pOp->p3]) );
      REGISTER_TRACE(pOp->p3, &aMem[pOp->p3]);
    }
    if( (pOp->opflags & OPFLG_OUT2)!=0 ){
      assert( pOp->p2>0 );
      assert( pOp->p2<=(p->nMem-p->nCursor) );
      memAboutToChange(p, &aMem[pOp->p2]);
    }
................................................................................
**
** Write the current address onto register P1
** and then jump to address P2.
*/
case OP_Gosub: {            /* jump */
  assert( pOp->p1>0 && pOp->p1<=(p->nMem-p->nCursor) );
  pIn1 = &aMem[pOp->p1];
  assert( VdbeMemDynamic(pIn1)==0 );
  memAboutToChange(p, pIn1);
  pIn1->flags = MEM_Int;
  pIn1->u.i = pc;
  REGISTER_TRACE(pOp->p1, pIn1);
  pc = pOp->p2 - 1;
  break;
}
................................................................................
** If the co-routine ends with OP_Yield or OP_Return then continue
** to the next instruction.  But if the co-routine ends with
** OP_EndCoroutine, jump immediately to P2.
*/
case OP_Yield: {            /* in1, jump */
  int pcDest;
  pIn1 = &aMem[pOp->p1];
  assert( VdbeMemDynamic(pIn1)==0 );
  pIn1->flags = MEM_Int;
  pcDest = (int)pIn1->u.i;
  pIn1->u.i = pc;
  REGISTER_TRACE(pOp->p1, pIn1);
  pc = pcDest;
  break;
}
................................................................................

#ifndef SQLITE_OMIT_UTF16
  if( encoding!=SQLITE_UTF8 ){
    rc = sqlite3VdbeMemSetStr(pOut, pOp->p4.z, -1, SQLITE_UTF8, SQLITE_STATIC);
    if( rc==SQLITE_TOOBIG ) goto too_big;
    if( SQLITE_OK!=sqlite3VdbeChangeEncoding(pOut, encoding) ) goto no_mem;
    assert( pOut->zMalloc==pOut->z );
    assert( VdbeMemDynamic(pOut)==0 );
    pOut->zMalloc = 0;
    pOut->flags |= MEM_Static;

    if( pOp->p4type==P4_DYNAMIC ){
      sqlite3DbFree(db, pOp->p4.z);
    }
    pOp->p4type = P4_DYNAMIC;
    pOp->p4.z = pOut->z;
    pOp->p1 = pOut->n;
  }
................................................................................
  pIn1 = &aMem[p1];
  pOut = &aMem[p2];
  do{
    assert( pOut<=&aMem[(p->nMem-p->nCursor)] );
    assert( pIn1<=&aMem[(p->nMem-p->nCursor)] );
    assert( memIsValid(pIn1) );
    memAboutToChange(p, pOut);
    VdbeMemRelease(pOut);
    zMalloc = pOut->zMalloc;

    memcpy(pOut, pIn1, sizeof(Mem));
#ifdef SQLITE_DEBUG
    if( pOut->pScopyFrom>=&aMem[p1] && pOut->pScopyFrom<&aMem[p1+pOp->p3] ){
      pOut->pScopyFrom += p1 - pOp->p2;
    }
#endif
    pIn1->flags = MEM_Undefined;
    pIn1->xDel = 0;
    pIn1->zMalloc = zMalloc;
    REGISTER_TRACE(p2++, pOut);
    pIn1++;
    pOut++;
  }while( n-- );
  break;
}
................................................................................
  pMem = p->pResultSet = &aMem[pOp->p1];
  for(i=0; i<pOp->p2; i++){
    assert( memIsValid(&pMem[i]) );
    Deephemeralize(&pMem[i]);
    assert( (pMem[i].flags & MEM_Ephem)==0
            || (pMem[i].flags & (MEM_Str|MEM_Blob))==0 );
    sqlite3VdbeMemNulTerminate(&pMem[i]);

    REGISTER_TRACE(pOp->p1+i, &pMem[i]);
  }
  if( db->mallocFailed ) goto no_mem;

  /* Return SQLITE_ROW
  */
  p->pc = pc + 1;
................................................................................
  if( ExpandBlob(pIn1) || ExpandBlob(pIn2) ) goto no_mem;
  Stringify(pIn1, encoding);
  Stringify(pIn2, encoding);
  nByte = pIn1->n + pIn2->n;
  if( nByte>db->aLimit[SQLITE_LIMIT_LENGTH] ){
    goto too_big;
  }

  if( sqlite3VdbeMemGrow(pOut, (int)nByte+2, pOut==pIn2) ){
    goto no_mem;
  }
  MemSetTypeFlag(pOut, MEM_Str);
  if( pOut!=pIn2 ){
    memcpy(pOut->z, pIn2->z, pIn2->n);
  }
  memcpy(&pOut->z[pIn2->n], pIn1->z, pIn1->n);
  pOut->z[nByte]=0;
  pOut->z[nByte+1] = 0;
  pOut->flags |= MEM_Term;
................................................................................
  assert( n==0 || (pOp->p2>0 && pOp->p2+n<=(p->nMem-p->nCursor)+1) );
  assert( pOp->p3<pOp->p2 || pOp->p3>=pOp->p2+n );
  pArg = &aMem[pOp->p2];
  for(i=0; i<n; i++, pArg++){
    assert( memIsValid(pArg) );
    apVal[i] = pArg;
    Deephemeralize(pArg);

    REGISTER_TRACE(pOp->p2+i, pArg);
  }

  assert( pOp->p4type==P4_FUNCDEF );
  ctx.pFunc = pOp->p4.pFunc;
  ctx.iOp = pc;
  ctx.pVdbe = p;
................................................................................

  /* Extract the content for the p2+1-th column.  Control can only
  ** reach this point if aOffset[p2], aOffset[p2+1], and aType[p2] are
  ** all valid.
  */
  assert( p2<pC->nHdrParsed );
  assert( rc==SQLITE_OK );
  assert( sqlite3VdbeCheckMemInvariants(pDest) );
  if( pC->szRow>=aOffset[p2+1] ){
    /* This is the common case where the desired content fits on the original
    ** page - where the content is not on an overflow page */
    VdbeMemRelease(pDest);
    sqlite3VdbeSerialGet(pC->aRow+aOffset[p2], aType[p2], pDest);
  }else{
    /* This branch happens only when content is on overflow pages */
................................................................................
    sqlite3VdbeSerialGet(zData, t, pDest);
    /* If we dynamically allocated space to hold the data (in the
    ** sqlite3VdbeMemFromBtree() call above) then transfer control of that
    ** dynamically allocated space over to the pDest structure.
    ** This prevents a memory copy. */
    if( sMem.zMalloc ){
      assert( sMem.z==sMem.zMalloc );
      assert( VdbeMemDynamic(pDest)==0 );
      assert( (pDest->flags & (MEM_Blob|MEM_Str))==0 || pDest->z==sMem.z );
      pDest->flags &= ~(MEM_Ephem|MEM_Static);
      pDest->flags |= MEM_Term;
      pDest->z = sMem.z;
      pDest->zMalloc = sMem.zMalloc;
    }
  }
  pDest->enc = encoding;
................................................................................
    j += sqlite3VdbeSerialPut(&zNewRecord[j], pRec, serial_type); /* content */
  }while( (++pRec)<=pLast );
  assert( i==nHdr );
  assert( j==nByte );

  assert( pOp->p3>0 && pOp->p3<=(p->nMem-p->nCursor) );
  pOut->n = (int)nByte;
  pOut->flags = MEM_Blob;
  pOut->xDel = 0;
  if( nZero ){
    pOut->u.nZero = nZero;
    pOut->flags |= MEM_Zero;
  }
  pOut->enc = SQLITE_UTF8;  /* In case the blob is ever converted to text */
  REGISTER_TRACE(pOp->p3, pOut);
................................................................................
    assert( pOp->p4type==P4_INT32 );
    assert( nField>0 );
    r.pKeyInfo = pC->pKeyInfo;
    r.nField = (u16)nField;

    /* The next line of code computes as follows, only faster:
    **   if( oc==OP_SeekGT || oc==OP_SeekLE ){
    **     r.default_rc = -1;
    **   }else{
    **     r.default_rc = +1;
    **   }
    */
    r.default_rc = ((1 & (oc - OP_SeekLT)) ? -1 : +1);
    assert( oc!=OP_SeekGT || r.default_rc==-1 );
    assert( oc!=OP_SeekLE || r.default_rc==-1 );
    assert( oc!=OP_SeekGE || r.default_rc==+1 );
    assert( oc!=OP_SeekLT || r.default_rc==+1 );

    r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
    ExpandBlob(r.aMem);
    rc = sqlite3BtreeMovetoUnpacked(pC->pCursor, &r, 0, 0, &res);
................................................................................
    for(ii=0; ii<r.nField; ii++){
      assert( memIsValid(&r.aMem[ii]) );
      ExpandBlob(&r.aMem[ii]);
#ifdef SQLITE_DEBUG
      if( ii ) REGISTER_TRACE(pOp->p3+ii, &r.aMem[ii]);
#endif
    }

    pIdxKey = &r;
  }else{
    pIdxKey = sqlite3VdbeAllocUnpackedRecord(
        pC->pKeyInfo, aTempRec, sizeof(aTempRec), &pFree
    ); 
    if( pIdxKey==0 ) goto no_mem;
    assert( pIn3->flags & MEM_Blob );
    assert( (pIn3->flags & MEM_Zero)==0 );  /* zeroblobs already expanded */
    sqlite3VdbeRecordUnpack(pC->pKeyInfo, pIn3->n, pIn3->z, pIdxKey);

  }
  pIdxKey->default_rc = 0;
  if( pOp->opcode==OP_NoConflict ){
    /* For the OP_NoConflict opcode, take the jump if any of the
    ** input fields are NULL, since any key with a NULL will not
    ** conflict */
    for(ii=0; ii<r.nField; ii++){
      if( r.aMem[ii].flags & MEM_Null ){
        pc = pOp->p2 - 1; VdbeBranchTaken(1,2);
................................................................................
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  pCrsr = pC->pCursor;
  assert( pCrsr!=0 );
  assert( pOp->p5==0 );
  r.pKeyInfo = pC->pKeyInfo;
  r.nField = (u16)pOp->p3;
  r.default_rc = 0;
  r.aMem = &aMem[pOp->p2];
#ifdef SQLITE_DEBUG
  { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
  rc = sqlite3BtreeMovetoUnpacked(pCrsr, &r, 0, 0, &res);
  if( rc==SQLITE_OK && res==0 ){
    rc = sqlite3BtreeDelete(pCrsr);
................................................................................
  assert( pC->deferredMoveto==0 );
  assert( pOp->p5==0 || pOp->p5==1 );
  assert( pOp->p4type==P4_INT32 );
  r.pKeyInfo = pC->pKeyInfo;
  r.nField = (u16)pOp->p4.i;
  if( pOp->opcode<OP_IdxLT ){
    assert( pOp->opcode==OP_IdxLE || pOp->opcode==OP_IdxGT );
    r.default_rc = -1;
  }else{
    assert( pOp->opcode==OP_IdxGE || pOp->opcode==OP_IdxLT );
    r.default_rc = 0;
  }
  r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
  { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
  res = 0;  /* Not needed.  Only used to silence a warning. */
  rc = sqlite3VdbeIdxKeyCompare(pC, &r, &res);
................................................................................
  pRec = &aMem[pOp->p2];
  apVal = p->apArg;
  assert( apVal || n==0 );
  for(i=0; i<n; i++, pRec++){
    assert( memIsValid(pRec) );
    apVal[i] = pRec;
    memAboutToChange(p, pRec);

  }
  ctx.pFunc = pOp->p4.pFunc;
  assert( pOp->p3>0 && pOp->p3<=(p->nMem-p->nCursor) );
  ctx.pMem = pMem = &aMem[pOp->p3];
  pMem->n++;
  ctx.s.flags = MEM_Null;
  ctx.s.z = 0;
................................................................................

  /* Invoke the xFilter method */
  {
    res = 0;
    apArg = p->apArg;
    for(i = 0; i<nArg; i++){
      apArg[i] = &pArgc[i+1];

    }

    p->inVtabMethod = 1;
    rc = pModule->xFilter(pVtabCursor, iQuery, pOp->p4.z, nArg, apArg);
    p->inVtabMethod = 0;
    sqlite3VtabImportErrmsg(p, pVtab);
    if( rc==SQLITE_OK ){
................................................................................
  if( ALWAYS(pModule->xUpdate) ){
    u8 vtabOnConflict = db->vtabOnConflict;
    apArg = p->apArg;
    pX = &aMem[pOp->p3];
    for(i=0; i<nArg; i++){
      assert( memIsValid(pX) );
      memAboutToChange(p, pX);

      apArg[i] = pX;
      pX++;
    }
    db->vtabOnConflict = pOp->p5;
    rc = pModule->xUpdate(pVtab, nArg, apArg, &rowid);
    db->vtabOnConflict = vtabOnConflict;
    sqlite3VtabImportErrmsg(p, pVtab);
................................................................................
    assert( r2->nField>0 );
    for(i=0; i<r2->nField; i++){
      if( r2->aMem[i].flags & MEM_Null ){
        *pRes = -1;
        return;
      }
    }
    assert( r2->default_rc==0 );
  }

  *pRes = sqlite3VdbeRecordCompare(nKey1, pKey1, r2, 0);
}

/*
** This function is called to compare two iterator keys when merging 
** multiple b-tree segments. Parameter iOut is the index of the aTree[] 
** value to recalculate.
*/
................................................................................
      assert( op==TK_DELETE || op==TK_UPDATE || op==TK_INSERT );
      if( op!=TK_DELETE && sqlite3StrICmp("new",zTab) == 0 ){
        pExpr->iTable = 1;
        pTab = pParse->pTriggerTab;
      }else if( op!=TK_INSERT && sqlite3StrICmp("old",zTab)==0 ){
        pExpr->iTable = 0;
        pTab = pParse->pTriggerTab;
      }else{
        pTab = 0;
      }

      if( pTab ){ 
        int iCol;
        pSchema = pTab->pSchema;
        cntTab++;
        for(iCol=0, pCol=pTab->aCol; iCol<pTab->nCol; iCol++, pCol++){
................................................................................
  /* Sanity checking on calling parameters */
  assert( iStart>=0 );
  assert( nExtra>=1 );
  assert( pSrc!=0 );
  assert( iStart<=pSrc->nSrc );

  /* Allocate additional space if needed */
  if( (u32)pSrc->nSrc+nExtra>pSrc->nAlloc ){
    SrcList *pNew;
    int nAlloc = pSrc->nSrc+nExtra;
    int nGot;
    pNew = sqlite3DbRealloc(db, pSrc,
               sizeof(*pSrc) + (nAlloc-1)*sizeof(pSrc->a[0]) );
    if( pNew==0 ){
      assert( db->mallocFailed );
      return pSrc;
    }
    pSrc = pNew;
    nGot = (sqlite3DbMallocSize(db, pNew) - sizeof(*pSrc))/sizeof(pSrc->a[0])+1;
    pSrc->nAlloc = nGot;
  }

  /* Move existing slots that come after the newly inserted slots
  ** out of the way */
  for(i=pSrc->nSrc-1; i>=iStart; i--){
    pSrc->a[i+nExtra] = pSrc->a[i];
  }
  pSrc->nSrc += nExtra;

  /* Zero the newly allocated slots */
  memset(&pSrc->a[iStart], 0, sizeof(pSrc->a[0])*nExtra);
  for(i=iStart; i<iStart+nExtra; i++){
    pSrc->a[i].iCursor = -1;
  }

................................................................................
      VdbeComment((v, "%s", pEList->a[i].zName));
    }
  }else if( eDest!=SRT_Exists ){
    /* If the destination is an EXISTS(...) expression, the actual
    ** values returned by the SELECT are not required.
    */
    sqlite3ExprCodeExprList(pParse, pEList, regResult,
                  (eDest==SRT_Output||eDest==SRT_Coroutine)?SQLITE_ECEL_DUP:0);
  }

  /* If the DISTINCT keyword was present on the SELECT statement
  ** and this row has been seen before, then do not make this row
  ** part of the result.
  */
  if( hasDistinct ){
................................................................................
    */
    nName = sqlite3Strlen30(zName);
    for(j=cnt=0; j<i; j++){
      if( sqlite3StrICmp(aCol[j].zName, zName)==0 ){
        char *zNewName;
        int k;
        for(k=nName-1; k>1 && sqlite3Isdigit(zName[k]); k--){}
        if( k>=0 && zName[k]==':' ) nName = k;
        zName[nName] = 0;
        zNewName = sqlite3MPrintf(db, "%s:%d", zName, ++cnt);
        sqlite3DbFree(db, zName);
        zName = zNewName;
        j = -1;
        if( zName==0 ) break;
      }
................................................................................
#endif
  assert( pRec!=0 );
  iCol = pRec->nField - 1;
  assert( pIdx->nSample>0 );
  assert( pRec->nField>0 && iCol<pIdx->nSampleCol );
  do{
    iTest = (iMin+i)/2;
    res = sqlite3VdbeRecordCompare(aSample[iTest].n, aSample[iTest].p, pRec, 0);
    if( res<0 ){
      iMin = iTest+1;
    }else{
      i = iTest;
    }
  }while( res && iMin<i );

................................................................................
#ifdef SQLITE_DEBUG
  /* The following assert statements check that the binary search code
  ** above found the right answer. This block serves no purpose other
  ** than to invoke the asserts.  */
  if( res==0 ){
    /* If (res==0) is true, then sample $i must be equal to pRec */
    assert( i<pIdx->nSample );
    assert( 0==sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec, 0)
         || pParse->db->mallocFailed );
  }else{
    /* Otherwise, pRec must be smaller than sample $i and larger than
    ** sample ($i-1).  */
    assert( i==pIdx->nSample 
         || sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec, 0)>0
         || pParse->db->mallocFailed );
    assert( i==0
         || sqlite3VdbeRecordCompare(aSample[i-1].n, aSample[i-1].p, pRec, 0)<0
         || pParse->db->mallocFailed );
  }
#endif /* ifdef SQLITE_DEBUG */

  /* At this point, aSample[i] is the first sample that is greater than
  ** or equal to pVal.  Or if i==pIdx->nSample, then all samples are less
  ** than pVal.  If aSample[i]==pVal, then res==0.
................................................................................
    assert( pTab!=0 );
    pLoop = pLevel->pWLoop;

    /* For a co-routine, change all OP_Column references to the table of
    ** the co-routine into OP_SCopy of result contained in a register.
    ** OP_Rowid becomes OP_Null.
    */
    if( pTabItem->viaCoroutine && !db->mallocFailed ){
      last = sqlite3VdbeCurrentAddr(v);
      k = pLevel->addrBody;
      pOp = sqlite3VdbeGetOp(v, k);
      for(; k<last; k++, pOp++){
        if( pOp->p1!=pLevel->iTabCur ) continue;
        if( pOp->opcode==OP_Column ){
          pOp->opcode = OP_SCopy;

Changes to src/sqlite3.h.

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**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.8.4"
#define SQLITE_VERSION_NUMBER 3008004
#define SQLITE_SOURCE_ID      "2014-02-27 15:04:13 a6690400235705ecc0d1a60dacff6ad5fb1f944a"

/*
** CAPI3REF: Run-Time Library Version Numbers
** KEYWORDS: sqlite3_version, sqlite3_sourceid
**
** These interfaces provide the same information as the [SQLITE_VERSION],
** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros







|







105
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**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.8.4"
#define SQLITE_VERSION_NUMBER 3008004
#define SQLITE_SOURCE_ID      "2014-03-05 19:04:46 0723effc9ccae7c660fb847b36ce9324e0cb5042"

/*
** CAPI3REF: Run-Time Library Version Numbers
** KEYWORDS: sqlite3_version, sqlite3_sourceid
**
** These interfaces provide the same information as the [SQLITE_VERSION],
** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros

Changes to src/tkt.c.

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  for(i=0; i<nField; i++){
    if( fossil_strcmp(aField[i].zName, zFieldName)==0 ) return i;
  }
  return -1;
}

/*
** Obtain a list of all fields of the TICKET and TICKETCHNG tables.  Put them 
** in sorted order in aField[].
**
** The haveTicket and haveTicketChng variables are set to 1 if the TICKET and
** TICKETCHANGE tables exist, respectively.
*/
static void getAllTicketFields(void){
  Stmt q;
................................................................................
  login_check_credentials();
  if( !g.perm.RdTkt ){ login_needed(); return; }
  if( g.perm.WrTkt || g.perm.ApndTkt ){
    style_submenu_element("Edit", "Edit The Ticket", "%s/tktedit?name=%T",
        g.zTop, PD("name",""));
  }
  if( g.perm.Hyperlink ){
    style_submenu_element("History", "History Of This Ticket", 
        "%s/tkthistory/%T", g.zTop, zUuid);
    style_submenu_element("Timeline", "Timeline Of This Ticket", 
        "%s/tkttimeline/%T", g.zTop, zUuid);
    style_submenu_element("Check-ins", "Check-ins Of This Ticket", 
        "%s/tkttimeline/%T?y=ci", g.zTop, zUuid);
  }
  if( g.perm.NewTkt ){
    style_submenu_element("New Ticket", "Create a new ticket",
        "%s/tktnew", g.zTop);
  }
  if( g.perm.ApndTkt && g.perm.Attach ){
................................................................................
  initializeVariablesFromDb();
  zScript = ticket_viewpage_code();
  if( P("showfields")!=0 ) showAllFields();
  if( g.thTrace ) Th_Trace("BEGIN_TKTVIEW_SCRIPT<br />\n", -1);
  Th_Render(zScript);
  if( g.thTrace ) Th_Trace("END_TKTVIEW<br />\n", -1);

  zFullName = db_text(0, 
       "SELECT tkt_uuid FROM ticket"
       " WHERE tkt_uuid GLOB '%q*'", zUuid);
  if( zFullName ){
    attachment_list(zFullName, "<hr /><h2>Attachments:</h2><ul>");
  }
 
  style_footer();
}

/*
** TH command:   append_field FIELD STRING
**
** FIELD is the name of a database column to which we might want
** to append text.  STRING is the text to be appended to that
** column.  The append does not actually occur until the
** submit_ticket command is run.
*/
static int appendRemarkCmd(
  Th_Interp *interp, 
  void *p, 
  int argc, 
  const char **argv, 
  int *argl
){
  int idx;

  if( argc!=3 ){
    return Th_WrongNumArgs(interp, "append_field FIELD STRING");
  }
................................................................................
** Construct and submit a new ticket artifact.  The fields of the artifact
** are the names of the columns in the TICKET table.  The content is
** taken from TH variables.  If the content is unchanged, the field is
** omitted from the artifact.  Fields whose names begin with "private_"
** are concealed using the db_conceal() function.
*/
static int submitTicketCmd(
  Th_Interp *interp, 
  void *pUuid, 
  int argc, 
  const char **argv, 
  int *argl
){
  char *zDate;
  const char *zUuid;
  int i;
  int nJ = 0;
  Blob tktchng, cksum;
................................................................................
          blob_appendf(&tktchng, "J %s %#F\n", aField[i].zName, nValue, zValue);
        }
        nJ++;
      }
    }
  }
  if( *(char**)pUuid ){
    zUuid = db_text(0, 
       "SELECT tkt_uuid FROM ticket WHERE tkt_uuid GLOB '%q*'", P("name")
    );
  }else{
    zUuid = db_text(0, "SELECT lower(hex(randomblob(20)))");
  }
  *(const char**)pUuid = zUuid;
  blob_appendf(&tktchng, "K %s\n", zUuid);
................................................................................
      @ <ol>
    }
    nChng++;
    if( zFile!=0 ){
      const char *zSrc = db_column_text(&q, 3);
      const char *zUser = db_column_text(&q, 5);
      if( zSrc==0 || zSrc[0]==0 ){
        @ 
        @ <li><p>Delete attachment "%h(zFile)"
      }else{
        @ 
        @ <li><p>Add attachment
        @ "%z(href("%R/artifact/%S",zSrc))%s(zFile)</a>"
      }
      @ [%z(href("%R/artifact/%T",zChngUuid))%s(zShort)</a>]
      @ (rid %d(rid)) by
      hyperlink_to_user(zUser,zDate," on");
      hyperlink_to_date(zDate, ".</p>");
................................................................................
      }
    }
  }else{
    /* add a new ticket or set fields on existing tickets */
    tTktShowEncoding tktEncoding;

    tktEncoding = find_option("quote","q",0) ? tktFossilize : tktNoTab;
    
    if( strncmp(g.argv[2],"show",n)==0 ){
      if( g.argc==3 ){
        usage("show REPORTNR");
      }else{
        const char *zRep = 0;
        const char *zSep = 0;
        const char *zFilterUuid = 0;
................................................................................
          eCmd = history;
        }else{
          eCmd = set;
        }
        if( g.argc==3 ){
          usage("set|change|history TICKETUUID");
        }
        zTktUuid = db_text(0, 
          "SELECT tkt_uuid FROM ticket WHERE tkt_uuid GLOB '%s*'", g.argv[3]
        );
        if( !zTktUuid ){
          fossil_fatal("unknown ticket: '%s'!",g.argv[3]);
        }
        i=4;
      }else if( strncmp(g.argv[2],"add",n)==0 ){
................................................................................
        if ( i != g.argc ){
          fossil_fatal("no other parameters expected to %s!",g.argv[2]);
        }
        tagid = db_int(0, "SELECT tagid FROM tag WHERE tagname GLOB 'tkt-%q*'",
                       zTktUuid);
        if( tagid==0 ){
          fossil_fatal("no such ticket %h", zTktUuid);
        }  
        db_prepare(&q,
          "SELECT datetime(mtime%s), objid, uuid, NULL, NULL, NULL"
          "  FROM event, blob"
          " WHERE objid IN (SELECT rid FROM tagxref WHERE tagid=%d)"
          "   AND blob.rid=event.objid"
          " UNION "
          "SELECT datetime(mtime%s), attachid, uuid, src, "







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  for(i=0; i<nField; i++){
    if( fossil_strcmp(aField[i].zName, zFieldName)==0 ) return i;
  }
  return -1;
}

/*
** Obtain a list of all fields of the TICKET and TICKETCHNG tables.  Put them
** in sorted order in aField[].
**
** The haveTicket and haveTicketChng variables are set to 1 if the TICKET and
** TICKETCHANGE tables exist, respectively.
*/
static void getAllTicketFields(void){
  Stmt q;
................................................................................
  login_check_credentials();
  if( !g.perm.RdTkt ){ login_needed(); return; }
  if( g.perm.WrTkt || g.perm.ApndTkt ){
    style_submenu_element("Edit", "Edit The Ticket", "%s/tktedit?name=%T",
        g.zTop, PD("name",""));
  }
  if( g.perm.Hyperlink ){
    style_submenu_element("History", "History Of This Ticket",
        "%s/tkthistory/%T", g.zTop, zUuid);
    style_submenu_element("Timeline", "Timeline Of This Ticket",
        "%s/tkttimeline/%T", g.zTop, zUuid);
    style_submenu_element("Check-ins", "Check-ins Of This Ticket",
        "%s/tkttimeline/%T?y=ci", g.zTop, zUuid);
  }
  if( g.perm.NewTkt ){
    style_submenu_element("New Ticket", "Create a new ticket",
        "%s/tktnew", g.zTop);
  }
  if( g.perm.ApndTkt && g.perm.Attach ){
................................................................................
  initializeVariablesFromDb();
  zScript = ticket_viewpage_code();
  if( P("showfields")!=0 ) showAllFields();
  if( g.thTrace ) Th_Trace("BEGIN_TKTVIEW_SCRIPT<br />\n", -1);
  Th_Render(zScript);
  if( g.thTrace ) Th_Trace("END_TKTVIEW<br />\n", -1);

  zFullName = db_text(0,
       "SELECT tkt_uuid FROM ticket"
       " WHERE tkt_uuid GLOB '%q*'", zUuid);
  if( zFullName ){
    attachment_list(zFullName, "<hr /><h2>Attachments:</h2><ul>");
  }

  style_footer();
}

/*
** TH command:   append_field FIELD STRING
**
** FIELD is the name of a database column to which we might want
** to append text.  STRING is the text to be appended to that
** column.  The append does not actually occur until the
** submit_ticket command is run.
*/
static int appendRemarkCmd(
  Th_Interp *interp,
  void *p,
  int argc,
  const char **argv,
  int *argl
){
  int idx;

  if( argc!=3 ){
    return Th_WrongNumArgs(interp, "append_field FIELD STRING");
  }
................................................................................
** Construct and submit a new ticket artifact.  The fields of the artifact
** are the names of the columns in the TICKET table.  The content is
** taken from TH variables.  If the content is unchanged, the field is
** omitted from the artifact.  Fields whose names begin with "private_"
** are concealed using the db_conceal() function.
*/
static int submitTicketCmd(
  Th_Interp *interp,
  void *pUuid,
  int argc,
  const char **argv,
  int *argl
){
  char *zDate;
  const char *zUuid;
  int i;
  int nJ = 0;
  Blob tktchng, cksum;
................................................................................
          blob_appendf(&tktchng, "J %s %#F\n", aField[i].zName, nValue, zValue);
        }
        nJ++;
      }
    }
  }
  if( *(char**)pUuid ){
    zUuid = db_text(0,
       "SELECT tkt_uuid FROM ticket WHERE tkt_uuid GLOB '%q*'", P("name")
    );
  }else{
    zUuid = db_text(0, "SELECT lower(hex(randomblob(20)))");
  }
  *(const char**)pUuid = zUuid;
  blob_appendf(&tktchng, "K %s\n", zUuid);
................................................................................
      @ <ol>
    }
    nChng++;
    if( zFile!=0 ){
      const char *zSrc = db_column_text(&q, 3);
      const char *zUser = db_column_text(&q, 5);
      if( zSrc==0 || zSrc[0]==0 ){
        @
        @ <li><p>Delete attachment "%h(zFile)"
      }else{
        @
        @ <li><p>Add attachment
        @ "%z(href("%R/artifact/%S",zSrc))%s(zFile)</a>"
      }
      @ [%z(href("%R/artifact/%T",zChngUuid))%s(zShort)</a>]
      @ (rid %d(rid)) by
      hyperlink_to_user(zUser,zDate," on");
      hyperlink_to_date(zDate, ".</p>");
................................................................................
      }
    }
  }else{
    /* add a new ticket or set fields on existing tickets */
    tTktShowEncoding tktEncoding;

    tktEncoding = find_option("quote","q",0) ? tktFossilize : tktNoTab;

    if( strncmp(g.argv[2],"show",n)==0 ){
      if( g.argc==3 ){
        usage("show REPORTNR");
      }else{
        const char *zRep = 0;
        const char *zSep = 0;
        const char *zFilterUuid = 0;
................................................................................
          eCmd = history;
        }else{
          eCmd = set;
        }
        if( g.argc==3 ){
          usage("set|change|history TICKETUUID");
        }
        zTktUuid = db_text(0,
          "SELECT tkt_uuid FROM ticket WHERE tkt_uuid GLOB '%s*'", g.argv[3]
        );
        if( !zTktUuid ){
          fossil_fatal("unknown ticket: '%s'!",g.argv[3]);
        }
        i=4;
      }else if( strncmp(g.argv[2],"add",n)==0 ){
................................................................................
        if ( i != g.argc ){
          fossil_fatal("no other parameters expected to %s!",g.argv[2]);
        }
        tagid = db_int(0, "SELECT tagid FROM tag WHERE tagname GLOB 'tkt-%q*'",
                       zTktUuid);
        if( tagid==0 ){
          fossil_fatal("no such ticket %h", zTktUuid);
        }
        db_prepare(&q,
          "SELECT datetime(mtime%s), objid, uuid, NULL, NULL, NULL"
          "  FROM event, blob"
          " WHERE objid IN (SELECT rid FROM tagxref WHERE tagid=%d)"
          "   AND blob.rid=event.objid"
          " UNION "
          "SELECT datetime(mtime%s), attachid, uuid, src, "

Changes to src/tktsetup.c.

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  const char *zDesc,            /* Description of this field */
  char *(*xText)(const char*),  /* Validity test or NULL */
  void (*xRebuild)(void),       /* Run after successful update */
  int height                    /* Height of the edit box */
){
  const char *z;
  int isSubmit;
  
  login_check_credentials();
  if( !g.perm.Setup ){
    login_needed();
  }
  if( P("setup") ){
    cgi_redirect("tktsetup");
  }
................................................................................
@ <table cellpadding="5">
@ <tr>
@ <td colspan="3">
@ Enter a one-line summary of the ticket:<br />
@ <input type="text" name="title" size="60" value="$<title>" />
@ </td>
@ </tr>
@ 
@ <tr>
@ <td align="right">Type:</td>
@ <td align="left"><th1>combobox type $type_choices 1</th1></td>
@ <td align="left">What type of ticket is this?</td>
@ </tr>
@ 
@ <tr>
@ <td align="right">Version:</td>
@ <td align="left">
@ <input type="text" name="foundin" size="20" value="$<foundin>" />
@ </td>
@ <td align="left">In what version or build number do you observe
@ the problem?</td>
@ </tr>
@ 
@ <tr>
@ <td align="right">Severity:</td>
@ <td align="left"><th1>combobox severity $severity_choices 1</th1></td>
@ <td align="left">How debilitating is the problem?  How badly does the problem
@ affect the operation of the product?</td>
@ </tr>
@ 
@ <tr>
@ <td align="right">EMail:</td>
@ <td align="left">
@ <input type="text" name="private_contact" value="$<private_contact>"
@  size="30" />
@ </td>
@ <td align="left"><u>Not publicly visible</u>
@ Used by developers to contact you with questions.</td>
@ </tr>
@ 
@ <tr>
@ <td colspan="3">
@ Enter a detailed description of the problem.
@ For code defects, be sure to provide details on exactly how
@ the problem can be reproduced.  Provide as much detail as
@ possible.  Format:
@ <th1>combobox mutype {Wiki HTML {Plain Text} {[links only]}} 1</th1>
@ <br />
@ <th1>set nline [linecount $comment 50 10]</th1>
@ <textarea name="icomment" cols="80" rows="$nline"
@  wrap="virtual" class="wikiedit">$<icomment></textarea><br />
@ </tr>
@ 
@ <th1>enable_output [info exists preview]</th1>
@ <tr><td colspan="3">
@ Description Preview:<br /><hr />
@ <th1>
@ if {$mutype eq "Wiki"} {
@   wiki $icomment
@ } elseif {$mutype eq "Plain Text"} {
................................................................................
@   wiki "<verbatim-$r links>[string trimright $icomment]\n</verbatim-$r>"
@ } else {
@   wiki "<nowiki>$icomment\n</nowiki>"
@ }
@ </th1>
@ <hr /></td></tr>
@ <th1>enable_output 1</th1>
@ 
@ <tr>
@ <td><td align="left">
@ <input type="submit" name="preview" value="Preview" />
@ </td>
@ <td align="left">See how the description will appear after formatting.</td>
@ </tr>
@ 
@ <th1>enable_output [info exists preview]</th1>
@ <tr>
@ <td><td align="left">
@ <input type="submit" name="submit" value="Submit" />
@ </td>
@ <td align="left">After filling in the information above, press this 
@ button to create the new ticket</td>
@ </tr>
@ <th1>enable_output 1</th1>
@ 
@ <tr>
@ <td><td align="left">
@ <input type="submit" name="cancel" value="Cancel" />
@ </td>
@ <td>Abandon and forget this ticket</td>
@ </tr>
@ </table>
................................................................................
@   </td>
@ <th1>enable_output 1</th1>
@ </tr>
@ <tr><td class="tktDspLabel">Version&nbsp;Found&nbsp;In:</td>
@ <td colspan="3" valign="top" class="tktDspValue">
@ $<foundin>
@ </td></tr>
@ 
@ <th1>
@ if {[info exists comment] && [string length $comment]>10} {
@   html {
@     <tr><td class="tktDspLabel">Description:</td></tr>
@     <tr><td colspan="5" class="tktDspValue">
@   }
@   if {[info exists plaintext]} {
................................................................................
@     set preview 1
@   }
@ </th1>
@ <table cellpadding="5">
@ <tr><td class="tktDspLabel">Title:</td><td>
@ <input type="text" name="title" value="$<title>" size="60" />
@ </td></tr>
@ 
@ <tr><td class="tktDspLabel">Status:</td><td>
@ <th1>combobox status $status_choices 1</th1>
@ </td></tr>
@ 
@ <tr><td class="tktDspLabel">Type:</td><td>
@ <th1>combobox type $type_choices 1</th1>
@ </td></tr>
@ 
@ <tr><td class="tktDspLabel">Severity:</td><td>
@ <th1>combobox severity $severity_choices 1</th1>
@ </td></tr>
@ 
@ <tr><td class="tktDspLabel">Priority:</td><td>
@ <th1>combobox priority $priority_choices 1</th1>
@ </td></tr>
@ 
@ <tr><td class="tktDspLabel">Resolution:</td><td>
@ <th1>combobox resolution $resolution_choices 1</th1>
@ </td></tr>
@ 
@ <tr><td class="tktDspLabel">Subsystem:</td><td>
@ <th1>combobox subsystem $subsystem_choices 1</th1>
@ </td></tr>
@ 
@ <th1>enable_output [hascap e]</th1>
@   <tr><td class="tktDspLabel">Contact:</td><td>
@   <input type="text" name="private_contact" size="40"
@    value="$<private_contact>" />
@   </td></tr>
@ <th1>enable_output 1</th1>
@ 
@ <tr><td class="tktDspLabel">Version&nbsp;Found&nbsp;In:</td><td>
@ <input type="text" name="foundin" size="50" value="$<foundin>" />
@ </td></tr>
@ 
@ <tr><td colspan="2">
@   Append Remark with format
@   <th1>combobox mutype {Wiki HTML {Plain Text} {[links only]}} 1</th1>
@   from
@   <input type="text" name="username" value="$<username>" size="30" />:<br />
@   <textarea name="icomment" cols="80" rows="15"
@    wrap="virtual" class="wikiedit">$<icomment></textarea>
@ </td></tr>
@ 
@ <th1>enable_output [info exists preview]</th1>
@ <tr><td colspan="2">
@ Description Preview:<br><hr>
@ <th1>
@ if {$mutype eq "Wiki"} {
@   wiki $icomment
@ } elseif {$mutype eq "Plain Text"} {
................................................................................
@ } else {
@   wiki "<nowiki>\n[string trimright $icomment]\n</nowiki>"
@ }
@ </th1>
@ <hr>
@ </td></tr>
@ <th1>enable_output 1</th1>
@ 
@ <tr>
@ <td align="right">
@ <input type="submit" name="preview" value="Preview" />
@ </td>
@ <td align="left">See how the description will appear after formatting.</td>
@ </tr>
@ 
@ <th1>enable_output [info exists preview]</th1>
@ <tr>
@ <td align="right">
@ <input type="submit" name="submit" value="Submit" />
@ </td>
@ <td align="left">Apply the changes shown above</td>
@ </tr>
@ <th1>enable_output 1</th1>
@ 
@ <tr>
@ <td align="right">
@ <input type="submit" name="cancel" value="Cancel" />
@ </td>
@ <td>Abandon this edit</td>
@ </tr>
@ 
@ </table>
;

/*
** Return the code used to generate the edit ticket page
*/
const char *ticket_editpage_code(void){
................................................................................
static const char zDefaultReportList[] =
@ <th1>
@ if {[hascap n]} {
@   html "<p>Enter a new ticket:</p>"
@   html "<ul><li><a href='tktnew'>New ticket</a></li></ul>"
@ }
@ </th1>
@ 
@ <p>Choose a report format from the following list:</p>
@ <ol>
@ <th1>html $report_items</th1>
@ </ol>
@ 
@ <th1>
@ if {[hascap t q]} {
@   html "<p>Other options:</p>\n<ul>\n"
@   if {[hascap t]} {
@     html "<li><a href='rptnew'>New report format</a></li>\n"
@   }
@   if {[hascap q]} {
................................................................................
    40
  );
}

/*
** The default template ticket report format:
*/
static char zDefaultReport[] = 
@ SELECT
@   CASE WHEN status IN ('Open','Verified') THEN '#f2dcdc'
@        WHEN status='Review' THEN '#e8e8e8'
@        WHEN status='Fixed' THEN '#cfe8bd'
@        WHEN status='Tested' THEN '#bde5d6'
@        WHEN status='Deferred' THEN '#cacae5'
@        ELSE '#c8c8c8' END AS 'bgcolor',
................................................................................
    20
  );
}

/*
** The default template ticket key:
*/
static const char zDefaultKey[] = 
@ #ffffff Key:
@ #f2dcdc Active
@ #e8e8e8 Review
@ #cfe8bd Fixed
@ #bde5d6 Tested
@ #cacae5 Deferred
@ #c8c8c8 Closed
................................................................................
  @ <p>
  @ <input type="submit"  name="submit" value="Apply Changes" />
  @ <input type="submit" name="setup" value="Cancel" />
  @ </p>
  @ </div></form>
  db_end_transaction(0);
  style_footer();
  
}







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  const char *zDesc,            /* Description of this field */
  char *(*xText)(const char*),  /* Validity test or NULL */
  void (*xRebuild)(void),       /* Run after successful update */
  int height                    /* Height of the edit box */
){
  const char *z;
  int isSubmit;

  login_check_credentials();
  if( !g.perm.Setup ){
    login_needed();
  }
  if( P("setup") ){
    cgi_redirect("tktsetup");
  }
................................................................................
@ <table cellpadding="5">
@ <tr>
@ <td colspan="3">
@ Enter a one-line summary of the ticket:<br />
@ <input type="text" name="title" size="60" value="$<title>" />
@ </td>
@ </tr>
@
@ <tr>
@ <td align="right">Type:</td>
@ <td align="left"><th1>combobox type $type_choices 1</th1></td>
@ <td align="left">What type of ticket is this?</td>
@ </tr>
@
@ <tr>
@ <td align="right">Version:</td>
@ <td align="left">
@ <input type="text" name="foundin" size="20" value="$<foundin>" />
@ </td>
@ <td align="left">In what version or build number do you observe
@ the problem?</td>
@ </tr>
@
@ <tr>
@ <td align="right">Severity:</td>
@ <td align="left"><th1>combobox severity $severity_choices 1</th1></td>
@ <td align="left">How debilitating is the problem?  How badly does the problem
@ affect the operation of the product?</td>
@ </tr>
@
@ <tr>
@ <td align="right">EMail:</td>
@ <td align="left">
@ <input type="text" name="private_contact" value="$<private_contact>"
@  size="30" />
@ </td>
@ <td align="left"><u>Not publicly visible</u>
@ Used by developers to contact you with questions.</td>
@ </tr>
@
@ <tr>
@ <td colspan="3">
@ Enter a detailed description of the problem.
@ For code defects, be sure to provide details on exactly how
@ the problem can be reproduced.  Provide as much detail as
@ possible.  Format:
@ <th1>combobox mutype {Wiki HTML {Plain Text} {[links only]}} 1</th1>
@ <br />
@ <th1>set nline [linecount $comment 50 10]</th1>
@ <textarea name="icomment" cols="80" rows="$nline"
@  wrap="virtual" class="wikiedit">$<icomment></textarea><br />
@ </tr>
@
@ <th1>enable_output [info exists preview]</th1>
@ <tr><td colspan="3">
@ Description Preview:<br /><hr />
@ <th1>
@ if {$mutype eq "Wiki"} {
@   wiki $icomment
@ } elseif {$mutype eq "Plain Text"} {
................................................................................
@   wiki "<verbatim-$r links>[string trimright $icomment]\n</verbatim-$r>"
@ } else {
@   wiki "<nowiki>$icomment\n</nowiki>"
@ }
@ </th1>
@ <hr /></td></tr>
@ <th1>enable_output 1</th1>
@
@ <tr>
@ <td><td align="left">
@ <input type="submit" name="preview" value="Preview" />
@ </td>
@ <td align="left">See how the description will appear after formatting.</td>
@ </tr>
@
@ <th1>enable_output [info exists preview]</th1>
@ <tr>
@ <td><td align="left">
@ <input type="submit" name="submit" value="Submit" />
@ </td>
@ <td align="left">After filling in the information above, press this
@ button to create the new ticket</td>
@ </tr>
@ <th1>enable_output 1</th1>
@
@ <tr>
@ <td><td align="left">
@ <input type="submit" name="cancel" value="Cancel" />
@ </td>
@ <td>Abandon and forget this ticket</td>
@ </tr>
@ </table>
................................................................................
@   </td>
@ <th1>enable_output 1</th1>
@ </tr>
@ <tr><td class="tktDspLabel">Version&nbsp;Found&nbsp;In:</td>
@ <td colspan="3" valign="top" class="tktDspValue">
@ $<foundin>
@ </td></tr>
@
@ <th1>
@ if {[info exists comment] && [string length $comment]>10} {
@   html {
@     <tr><td class="tktDspLabel">Description:</td></tr>
@     <tr><td colspan="5" class="tktDspValue">
@   }
@   if {[info exists plaintext]} {
................................................................................
@     set preview 1
@   }
@ </th1>
@ <table cellpadding="5">
@ <tr><td class="tktDspLabel">Title:</td><td>
@ <input type="text" name="title" value="$<title>" size="60" />
@ </td></tr>
@
@ <tr><td class="tktDspLabel">Status:</td><td>
@ <th1>combobox status $status_choices 1</th1>
@ </td></tr>
@
@ <tr><td class="tktDspLabel">Type:</td><td>
@ <th1>combobox type $type_choices 1</th1>
@ </td></tr>
@
@ <tr><td class="tktDspLabel">Severity:</td><td>
@ <th1>combobox severity $severity_choices 1</th1>
@ </td></tr>
@
@ <tr><td class="tktDspLabel">Priority:</td><td>
@ <th1>combobox priority $priority_choices 1</th1>
@ </td></tr>
@
@ <tr><td class="tktDspLabel">Resolution:</td><td>
@ <th1>combobox resolution $resolution_choices 1</th1>
@ </td></tr>
@
@ <tr><td class="tktDspLabel">Subsystem:</td><td>
@ <th1>combobox subsystem $subsystem_choices 1</th1>
@ </td></tr>
@
@ <th1>enable_output [hascap e]</th1>
@   <tr><td class="tktDspLabel">Contact:</td><td>
@   <input type="text" name="private_contact" size="40"
@    value="$<private_contact>" />
@   </td></tr>
@ <th1>enable_output 1</th1>
@
@ <tr><td class="tktDspLabel">Version&nbsp;Found&nbsp;In:</td><td>
@ <input type="text" name="foundin" size="50" value="$<foundin>" />
@ </td></tr>
@
@ <tr><td colspan="2">
@   Append Remark with format
@   <th1>combobox mutype {Wiki HTML {Plain Text} {[links only]}} 1</th1>
@   from
@   <input type="text" name="username" value="$<username>" size="30" />:<br />
@   <textarea name="icomment" cols="80" rows="15"
@    wrap="virtual" class="wikiedit">$<icomment></textarea>
@ </td></tr>
@
@ <th1>enable_output [info exists preview]</th1>
@ <tr><td colspan="2">
@ Description Preview:<br><hr>
@ <th1>
@ if {$mutype eq "Wiki"} {
@   wiki $icomment
@ } elseif {$mutype eq "Plain Text"} {
................................................................................
@ } else {
@   wiki "<nowiki>\n[string trimright $icomment]\n</nowiki>"
@ }
@ </th1>
@ <hr>
@ </td></tr>
@ <th1>enable_output 1</th1>
@
@ <tr>
@ <td align="right">
@ <input type="submit" name="preview" value="Preview" />
@ </td>
@ <td align="left">See how the description will appear after formatting.</td>
@ </tr>
@
@ <th1>enable_output [info exists preview]</th1>
@ <tr>
@ <td align="right">
@ <input type="submit" name="submit" value="Submit" />
@ </td>
@ <td align="left">Apply the changes shown above</td>
@ </tr>
@ <th1>enable_output 1</th1>
@
@ <tr>
@ <td align="right">
@ <input type="submit" name="cancel" value="Cancel" />
@ </td>
@ <td>Abandon this edit</td>
@ </tr>
@
@ </table>
;

/*
** Return the code used to generate the edit ticket page
*/
const char *ticket_editpage_code(void){
................................................................................
static const char zDefaultReportList[] =
@ <th1>
@ if {[hascap n]} {
@   html "<p>Enter a new ticket:</p>"
@   html "<ul><li><a href='tktnew'>New ticket</a></li></ul>"
@ }
@ </th1>
@
@ <p>Choose a report format from the following list:</p>
@ <ol>
@ <th1>html $report_items</th1>
@ </ol>
@
@ <th1>
@ if {[hascap t q]} {
@   html "<p>Other options:</p>\n<ul>\n"
@   if {[hascap t]} {
@     html "<li><a href='rptnew'>New report format</a></li>\n"
@   }
@   if {[hascap q]} {
................................................................................
    40
  );
}

/*
** The default template ticket report format:
*/
static char zDefaultReport[] =
@ SELECT
@   CASE WHEN status IN ('Open','Verified') THEN '#f2dcdc'
@        WHEN status='Review' THEN '#e8e8e8'
@        WHEN status='Fixed' THEN '#cfe8bd'
@        WHEN status='Tested' THEN '#bde5d6'
@        WHEN status='Deferred' THEN '#cacae5'
@        ELSE '#c8c8c8' END AS 'bgcolor',
................................................................................
    20
  );
}

/*
** The default template ticket key:
*/
static const char zDefaultKey[] =
@ #ffffff Key:
@ #f2dcdc Active
@ #e8e8e8 Review
@ #cfe8bd Fixed
@ #bde5d6 Tested
@ #cacae5 Deferred
@ #c8c8c8 Closed
................................................................................
  @ <p>
  @ <input type="submit"  name="submit" value="Apply Changes" />
  @ <input type="submit" name="setup" value="Cancel" />
  @ </p>
  @ </div></form>
  db_end_transaction(0);
  style_footer();

}

Changes to src/utf8.c.

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**
** See: <http://cygwin.com/cygwin-ug-net/using-specialnames.html>
**
*/
void *fossil_utf8_to_filename(const char *zUtf8){
#ifdef _WIN32
  int nChar = MultiByteToWideChar(CP_UTF8, 0, zUtf8, -1, 0, 0);

  wchar_t *zUnicode = sqlite3_malloc( nChar * 2 );
  wchar_t *wUnicode = zUnicode;
  if( zUnicode==0 ){
    return 0;
  }
  MultiByteToWideChar(CP_UTF8, 0, zUtf8, -1, zUnicode, nChar);
  /*
  ** If path starts with "//?/" or "\\?\" (extended path), translate
................................................................................
  if( (zUtf8[0]=='\\' || zUtf8[0]=='/') && (zUtf8[1]=='\\' || zUtf8[1]=='/')
           && zUtf8[2]=='?' && (zUtf8[3]=='\\' || zUtf8[3]=='/')) {
    wUnicode[0] = wUnicode[1] = wUnicode[3] = '\\';
    zUtf8 += 4;
    wUnicode += 4;
  }
  /*
  ** If (remainder of) path starts with "<drive>:/" or "<drive>:\",
  ** leave the ':' intact



  */
  if( fossil_isalpha(zUtf8[0]) && zUtf8[1]==':'
           && (zUtf8[2]=='\\' || zUtf8[2]=='/')) {









    wUnicode[2] = '\\';
    wUnicode += 3;






  }
  /*
  ** In the remainder of the path, translate invalid characters to
  ** characters in the Unicode private use area. This is what makes
  ** Win32 fossil.exe work well in a Cygwin environment even when a
  ** filename contains characters which are invalid for Win32.
  */







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**
** See: <http://cygwin.com/cygwin-ug-net/using-specialnames.html>
**
*/
void *fossil_utf8_to_filename(const char *zUtf8){
#ifdef _WIN32
  int nChar = MultiByteToWideChar(CP_UTF8, 0, zUtf8, -1, 0, 0);
  /* Overallocate 6 chars, making some room for extended paths */
  wchar_t *zUnicode = sqlite3_malloc( (nChar+6) * sizeof(wchar_t) );
  wchar_t *wUnicode = zUnicode;
  if( zUnicode==0 ){
    return 0;
  }
  MultiByteToWideChar(CP_UTF8, 0, zUtf8, -1, zUnicode, nChar);
  /*
  ** If path starts with "//?/" or "\\?\" (extended path), translate
................................................................................
  if( (zUtf8[0]=='\\' || zUtf8[0]=='/') && (zUtf8[1]=='\\' || zUtf8[1]=='/')
           && zUtf8[2]=='?' && (zUtf8[3]=='\\' || zUtf8[3]=='/')) {
    wUnicode[0] = wUnicode[1] = wUnicode[3] = '\\';
    zUtf8 += 4;
    wUnicode += 4;
  }
  /*
  ** If there is no "\\?\" prefix but there is a drive or UNC
  ** path prefix and the path is larger than MAX_PATH chars,
  ** no Win32 API function can handle that unless it is
  ** prefixed with the extended path prefix. See:
  ** <http://msdn.microsoft.com/en-us/library/aa365247(VS.85).aspx#maxpath>
  **/
  if( fossil_isalpha(zUtf8[0]) && zUtf8[1]==':'
           && (zUtf8[2]=='\\' || zUtf8[2]=='/') ){
    if( wUnicode==zUnicode && nChar>MAX_PATH){
      memmove(wUnicode+4, wUnicode, nChar*sizeof(wchar_t));
      memcpy(wUnicode, L"\\\\?\\", 4*sizeof(wchar_t));
      wUnicode += 4;
    }
    /*
    ** If (remainder of) path starts with "<drive>:/" or "<drive>:\",
    ** leave the ':' intact but translate the backslash to a slash.
    */
    wUnicode[2] = '\\';
    wUnicode += 3;
  }else if( wUnicode==zUnicode && nChar>MAX_PATH
            && (zUtf8[0]=='\\' || zUtf8[0]=='/')
            && (zUtf8[1]=='\\' || zUtf8[1]=='/') && zUtf8[2]!='?'){
    memmove(wUnicode+6, wUnicode, nChar*sizeof(wchar_t));
    memcpy(wUnicode, L"\\\\?\\UNC", 7*sizeof(wchar_t));
    wUnicode += 7;
  }
  /*
  ** In the remainder of the path, translate invalid characters to
  ** characters in the Unicode private use area. This is what makes
  ** Win32 fossil.exe work well in a Cygwin environment even when a
  ** filename contains characters which are invalid for Win32.
  */

Changes to test/file1.test.

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simplify-name 101 {} {} / / ///////// / ././././ .
simplify-name 102 x x /x /x ///x //x
simplify-name 103 a/b a/b /a/b /a/b a///b a/b ///a///b///// //a/b
simplify-name 104 a/b/../c/ a/c /a/b/../c /a/c /a/b//../c /a/c /a/b/..///c /a/c
simplify-name 105 a/b/../../x/y x/y /a/b/../../x/y /x/y
simplify-name 106 a/b/../../../x/y ../x/y /a/b/../../../x/y /../x/y
simplify-name 107 a/./b/.././../x/y x/y a//.//b//..//.//..//x//y/// x/y












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simplify-name 101 {} {} / / ///////// / ././././ .
simplify-name 102 x x /x /x ///x //x
simplify-name 103 a/b a/b /a/b /a/b a///b a/b ///a///b///// //a/b
simplify-name 104 a/b/../c/ a/c /a/b/../c /a/c /a/b//../c /a/c /a/b/..///c /a/c
simplify-name 105 a/b/../../x/y x/y /a/b/../../x/y /x/y
simplify-name 106 a/b/../../../x/y ../x/y /a/b/../../../x/y /../x/y
simplify-name 107 a/./b/.././../x/y x/y a//.//b//..//.//..//x//y/// x/y

if {$::tcl_platform(os)=="Windows NT"} {
  simplify-name 108 //?/a:/a/b a:/a/b //?/UNC/a/b //a/b //?/ {}
  simplify-name 109 \\\\?\\a:\\a\\b a:/a/b \\\\?\\UNC\\a\\b //a/b \\\\?\\ {}
}

Changes to win/Makefile.PellesCGMake.

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SQLITEOBJ=$(foreach sf,$(SQLITESRC),$(sf:.c=.obj))
SQLITEDEFINES=-DSQLITE_OMIT_LOAD_EXTENSION=1 -DSQLITE_ENABLE_LOCKING_STYLE=0 -DSQLITE_THREADSAFE=0 -DSQLITE_DEFAULT_FILE_FORMAT=4 -DSQLITE_OMIT_DEPRECATED -DSQLITE_ENABLE_EXPLAIN_COMMENTS

# define the sqlite shell files, which need special flags on compile
SQLITESHELLSRC=shell.c
ORIGSQLITESHELLSRC=$(foreach sf,$(SQLITESHELLSRC),$(SRCDIR)$(sf))
SQLITESHELLOBJ=$(foreach sf,$(SQLITESHELLSRC),$(sf:.c=.obj))
SQLITESHELLDEFINES=-Dmain=sqlite3_shell -DSQLITE_OMIT_LOAD_EXTENSION=1 -DUSE_SYSTEM_SQLITE=$(USE_SYSTEM_SQLITE) -DSQLITE_SHELL_DBNAME_PROC=fossil_open -Dgetenv=fossil_getenv -Dfopen=fossil_fopen

# define the th scripting files, which need special flags on compile
THSRC=th.c th_lang.c
ORIGTHSRC=$(foreach sf,$(THSRC),$(SRCDIR)$(sf))
THOBJ=$(foreach sf,$(THSRC),$(sf:.c=.obj))

# define the zlib files, needed by this compile







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SQLITEOBJ=$(foreach sf,$(SQLITESRC),$(sf:.c=.obj))
SQLITEDEFINES=-DSQLITE_OMIT_LOAD_EXTENSION=1 -DSQLITE_ENABLE_LOCKING_STYLE=0 -DSQLITE_THREADSAFE=0 -DSQLITE_DEFAULT_FILE_FORMAT=4 -DSQLITE_OMIT_DEPRECATED -DSQLITE_ENABLE_EXPLAIN_COMMENTS

# define the sqlite shell files, which need special flags on compile
SQLITESHELLSRC=shell.c
ORIGSQLITESHELLSRC=$(foreach sf,$(SQLITESHELLSRC),$(SRCDIR)$(sf))
SQLITESHELLOBJ=$(foreach sf,$(SQLITESHELLSRC),$(sf:.c=.obj))
SQLITESHELLDEFINES=-Dmain=sqlite3_shell -DSQLITE_OMIT_LOAD_EXTENSION=1 -DUSE_SYSTEM_SQLITE=$(USE_SYSTEM_SQLITE) -DSQLITE_SHELL_DBNAME_PROC=fossil_open -Daccess=win32_access -Dgetenv=fossil_getenv -Dfopen=fossil_fopen

# define the th scripting files, which need special flags on compile
THSRC=th.c th_lang.c
ORIGTHSRC=$(foreach sf,$(THSRC),$(SRCDIR)$(sf))
THOBJ=$(foreach sf,$(THSRC),$(sf:.c=.obj))

# define the zlib files, needed by this compile

Changes to win/Makefile.dmc.

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CFLAGS = -o
BCC    = $(DMDIR)\bin\dmc $(CFLAGS)
TCC    = $(DMDIR)\bin\dmc $(CFLAGS) $(DMCDEF) $(SSL) $(INCL)
LIBS   = $(DMDIR)\extra\lib\ zlib wsock32 advapi32

SQLITE_OPTIONS = -DSQLITE_OMIT_LOAD_EXTENSION=1 -DSQLITE_ENABLE_LOCKING_STYLE=0 -DSQLITE_THREADSAFE=0 -DSQLITE_DEFAULT_FILE_FORMAT=4 -DSQLITE_OMIT_DEPRECATED -DSQLITE_ENABLE_EXPLAIN_COMMENTS

SHELL_OPTIONS = -Dmain=sqlite3_shell -DSQLITE_OMIT_LOAD_EXTENSION=1 -DUSE_SYSTEM_SQLITE=$(USE_SYSTEM_SQLITE) -DSQLITE_SHELL_DBNAME_PROC=fossil_open -Dgetenv=fossil_getenv -Dfopen=fossil_fopen

SRC   = add_.c allrepo_.c attach_.c bag_.c bisect_.c blob_.c branch_.c browse_.c captcha_.c cgi_.c checkin_.c checkout_.c clearsign_.c clone_.c comformat_.c configure_.c content_.c db_.c delta_.c deltacmd_.c descendants_.c diff_.c diffcmd_.c doc_.c encode_.c event_.c export_.c file_.c finfo_.c glob_.c graph_.c gzip_.c http_.c http_socket_.c http_ssl_.c http_transport_.c import_.c info_.c json_.c json_artifact_.c json_branch_.c json_config_.c json_diff_.c json_dir_.c json_finfo_.c json_login_.c json_query_.c json_report_.c json_status_.c json_tag_.c json_timeline_.c json_user_.c json_wiki_.c leaf_.c login_.c lookslike_.c main_.c manifest_.c markdown_.c markdown_html_.c md5_.c merge_.c merge3_.c moderate_.c name_.c path_.c pivot_.c popen_.c pqueue_.c printf_.c rebuild_.c regexp_.c report_.c rss_.c schema_.c search_.c setup_.c sha1_.c shun_.c skins_.c sqlcmd_.c stash_.c stat_.c style_.c sync_.c tag_.c tar_.c th_main_.c timeline_.c tkt_.c tktsetup_.c undo_.c unicode_.c update_.c url_.c user_.c utf8_.c util_.c verify_.c vfile_.c wiki_.c wikiformat_.c winfile_.c winhttp_.c wysiwyg_.c xfer_.c xfersetup_.c zip_.c 

OBJ   = $(OBJDIR)\add$O $(OBJDIR)\allrepo$O $(OBJDIR)\attach$O $(OBJDIR)\bag$O $(OBJDIR)\bisect$O $(OBJDIR)\blob$O $(OBJDIR)\branch$O $(OBJDIR)\browse$O $(OBJDIR)\captcha$O $(OBJDIR)\cgi$O $(OBJDIR)\checkin$O $(OBJDIR)\checkout$O $(OBJDIR)\clearsign$O $(OBJDIR)\clone$O $(OBJDIR)\comformat$O $(OBJDIR)\configure$O $(OBJDIR)\content$O $(OBJDIR)\db$O $(OBJDIR)\delta$O $(OBJDIR)\deltacmd$O $(OBJDIR)\descendants$O $(OBJDIR)\diff$O $(OBJDIR)\diffcmd$O $(OBJDIR)\doc$O $(OBJDIR)\encode$O $(OBJDIR)\event$O $(OBJDIR)\export$O $(OBJDIR)\file$O $(OBJDIR)\finfo$O $(OBJDIR)\glob$O $(OBJDIR)\graph$O $(OBJDIR)\gzip$O $(OBJDIR)\http$O $(OBJDIR)\http_socket$O $(OBJDIR)\http_ssl$O $(OBJDIR)\http_transport$O $(OBJDIR)\import$O $(OBJDIR)\info$O $(OBJDIR)\json$O $(OBJDIR)\json_artifact$O $(OBJDIR)\json_branch$O $(OBJDIR)\json_config$O $(OBJDIR)\json_diff$O $(OBJDIR)\json_dir$O $(OBJDIR)\json_finfo$O $(OBJDIR)\json_login$O $(OBJDIR)\json_query$O $(OBJDIR)\json_report$O $(OBJDIR)\json_status$O $(OBJDIR)\json_tag$O $(OBJDIR)\json_timeline$O $(OBJDIR)\json_user$O $(OBJDIR)\json_wiki$O $(OBJDIR)\leaf$O $(OBJDIR)\login$O $(OBJDIR)\lookslike$O $(OBJDIR)\main$O $(OBJDIR)\manifest$O $(OBJDIR)\markdown$O $(OBJDIR)\markdown_html$O $(OBJDIR)\md5$O $(OBJDIR)\merge$O $(OBJDIR)\merge3$O $(OBJDIR)\moderate$O $(OBJDIR)\name$O $(OBJDIR)\path$O $(OBJDIR)\pivot$O $(OBJDIR)\popen$O $(OBJDIR)\pqueue$O $(OBJDIR)\printf$O $(OBJDIR)\rebuild$O $(OBJDIR)\regexp$O $(OBJDIR)\report$O $(OBJDIR)\rss$O $(OBJDIR)\schema$O $(OBJDIR)\search$O $(OBJDIR)\setup$O $(OBJDIR)\sha1$O $(OBJDIR)\shun$O $(OBJDIR)\skins$O $(OBJDIR)\sqlcmd$O $(OBJDIR)\stash$O $(OBJDIR)\stat$O $(OBJDIR)\style$O $(OBJDIR)\sync$O $(OBJDIR)\tag$O $(OBJDIR)\tar$O $(OBJDIR)\th_main$O $(OBJDIR)\timeline$O $(OBJDIR)\tkt$O $(OBJDIR)\tktsetup$O $(OBJDIR)\undo$O $(OBJDIR)\unicode$O $(OBJDIR)\update$O $(OBJDIR)\url$O $(OBJDIR)\user$O $(OBJDIR)\utf8$O $(OBJDIR)\util$O $(OBJDIR)\verify$O $(OBJDIR)\vfile$O $(OBJDIR)\wiki$O $(OBJDIR)\wikiformat$O $(OBJDIR)\winfile$O $(OBJDIR)\winhttp$O $(OBJDIR)\wysiwyg$O $(OBJDIR)\xfer$O $(OBJDIR)\xfersetup$O $(OBJDIR)\zip$O $(OBJDIR)\shell$O $(OBJDIR)\sqlite3$O $(OBJDIR)\th$O $(OBJDIR)\th_lang$O 


RC=$(DMDIR)\bin\rcc







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CFLAGS = -o
BCC    = $(DMDIR)\bin\dmc $(CFLAGS)
TCC    = $(DMDIR)\bin\dmc $(CFLAGS) $(DMCDEF) $(SSL) $(INCL)
LIBS   = $(DMDIR)\extra\lib\ zlib wsock32 advapi32

SQLITE_OPTIONS = -DSQLITE_OMIT_LOAD_EXTENSION=1 -DSQLITE_ENABLE_LOCKING_STYLE=0 -DSQLITE_THREADSAFE=0 -DSQLITE_DEFAULT_FILE_FORMAT=4 -DSQLITE_OMIT_DEPRECATED -DSQLITE_ENABLE_EXPLAIN_COMMENTS

SHELL_OPTIONS = -Dmain=sqlite3_shell -DSQLITE_OMIT_LOAD_EXTENSION=1 -DUSE_SYSTEM_SQLITE=$(USE_SYSTEM_SQLITE) -DSQLITE_SHELL_DBNAME_PROC=fossil_open -Daccess=win32_access -Dgetenv=fossil_getenv -Dfopen=fossil_fopen

SRC   = add_.c allrepo_.c attach_.c bag_.c bisect_.c blob_.c branch_.c browse_.c captcha_.c cgi_.c checkin_.c checkout_.c clearsign_.c clone_.c comformat_.c configure_.c content_.c db_.c delta_.c deltacmd_.c descendants_.c diff_.c diffcmd_.c doc_.c encode_.c event_.c export_.c file_.c finfo_.c glob_.c graph_.c gzip_.c http_.c http_socket_.c http_ssl_.c http_transport_.c import_.c info_.c json_.c json_artifact_.c json_branch_.c json_config_.c json_diff_.c json_dir_.c json_finfo_.c json_login_.c json_query_.c json_report_.c json_status_.c json_tag_.c json_timeline_.c json_user_.c json_wiki_.c leaf_.c login_.c lookslike_.c main_.c manifest_.c markdown_.c markdown_html_.c md5_.c merge_.c merge3_.c moderate_.c name_.c path_.c pivot_.c popen_.c pqueue_.c printf_.c rebuild_.c regexp_.c report_.c rss_.c schema_.c search_.c setup_.c sha1_.c shun_.c skins_.c sqlcmd_.c stash_.c stat_.c style_.c sync_.c tag_.c tar_.c th_main_.c timeline_.c tkt_.c tktsetup_.c undo_.c unicode_.c update_.c url_.c user_.c utf8_.c util_.c verify_.c vfile_.c wiki_.c wikiformat_.c winfile_.c winhttp_.c wysiwyg_.c xfer_.c xfersetup_.c zip_.c 

OBJ   = $(OBJDIR)\add$O $(OBJDIR)\allrepo$O $(OBJDIR)\attach$O $(OBJDIR)\bag$O $(OBJDIR)\bisect$O $(OBJDIR)\blob$O $(OBJDIR)\branch$O $(OBJDIR)\browse$O $(OBJDIR)\captcha$O $(OBJDIR)\cgi$O $(OBJDIR)\checkin$O $(OBJDIR)\checkout$O $(OBJDIR)\clearsign$O $(OBJDIR)\clone$O $(OBJDIR)\comformat$O $(OBJDIR)\configure$O $(OBJDIR)\content$O $(OBJDIR)\db$O $(OBJDIR)\delta$O $(OBJDIR)\deltacmd$O $(OBJDIR)\descendants$O $(OBJDIR)\diff$O $(OBJDIR)\diffcmd$O $(OBJDIR)\doc$O $(OBJDIR)\encode$O $(OBJDIR)\event$O $(OBJDIR)\export$O $(OBJDIR)\file$O $(OBJDIR)\finfo$O $(OBJDIR)\glob$O $(OBJDIR)\graph$O $(OBJDIR)\gzip$O $(OBJDIR)\http$O $(OBJDIR)\http_socket$O $(OBJDIR)\http_ssl$O $(OBJDIR)\http_transport$O $(OBJDIR)\import$O $(OBJDIR)\info$O $(OBJDIR)\json$O $(OBJDIR)\json_artifact$O $(OBJDIR)\json_branch$O $(OBJDIR)\json_config$O $(OBJDIR)\json_diff$O $(OBJDIR)\json_dir$O $(OBJDIR)\json_finfo$O $(OBJDIR)\json_login$O $(OBJDIR)\json_query$O $(OBJDIR)\json_report$O $(OBJDIR)\json_status$O $(OBJDIR)\json_tag$O $(OBJDIR)\json_timeline$O $(OBJDIR)\json_user$O $(OBJDIR)\json_wiki$O $(OBJDIR)\leaf$O $(OBJDIR)\login$O $(OBJDIR)\lookslike$O $(OBJDIR)\main$O $(OBJDIR)\manifest$O $(OBJDIR)\markdown$O $(OBJDIR)\markdown_html$O $(OBJDIR)\md5$O $(OBJDIR)\merge$O $(OBJDIR)\merge3$O $(OBJDIR)\moderate$O $(OBJDIR)\name$O $(OBJDIR)\path$O $(OBJDIR)\pivot$O $(OBJDIR)\popen$O $(OBJDIR)\pqueue$O $(OBJDIR)\printf$O $(OBJDIR)\rebuild$O $(OBJDIR)\regexp$O $(OBJDIR)\report$O $(OBJDIR)\rss$O $(OBJDIR)\schema$O $(OBJDIR)\search$O $(OBJDIR)\setup$O $(OBJDIR)\sha1$O $(OBJDIR)\shun$O $(OBJDIR)\skins$O $(OBJDIR)\sqlcmd$O $(OBJDIR)\stash$O $(OBJDIR)\stat$O $(OBJDIR)\style$O $(OBJDIR)\sync$O $(OBJDIR)\tag$O $(OBJDIR)\tar$O $(OBJDIR)\th_main$O $(OBJDIR)\timeline$O $(OBJDIR)\tkt$O $(OBJDIR)\tktsetup$O $(OBJDIR)\undo$O $(OBJDIR)\unicode$O $(OBJDIR)\update$O $(OBJDIR)\url$O $(OBJDIR)\user$O $(OBJDIR)\utf8$O $(OBJDIR)\util$O $(OBJDIR)\verify$O $(OBJDIR)\vfile$O $(OBJDIR)\wiki$O $(OBJDIR)\wikiformat$O $(OBJDIR)\winfile$O $(OBJDIR)\winhttp$O $(OBJDIR)\wysiwyg$O $(OBJDIR)\xfer$O $(OBJDIR)\xfersetup$O $(OBJDIR)\zip$O $(OBJDIR)\shell$O $(OBJDIR)\sqlite3$O $(OBJDIR)\th$O $(OBJDIR)\th_lang$O 


RC=$(DMDIR)\bin\rcc

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SQLITE_OPTIONS = -DSQLITE_OMIT_LOAD_EXTENSION=1 \
                 -DSQLITE_ENABLE_LOCKING_STYLE=0 \
                 -DSQLITE_THREADSAFE=0 \
                 -DSQLITE_DEFAULT_FILE_FORMAT=4 \
                 -DSQLITE_OMIT_DEPRECATED \
                 -DSQLITE_ENABLE_EXPLAIN_COMMENTS \
                 -D_HAVE_SQLITE_CONFIG_H \
                 -DSQLITE_USE_MALLOC_H \
                 -DSQLITE_USE_MSIZE

SHELL_OPTIONS = -Dmain=sqlite3_shell \
                -DSQLITE_OMIT_LOAD_EXTENSION=1 \
                -DUSE_SYSTEM_SQLITE=$(USE_SYSTEM_SQLITE) \
                -DSQLITE_SHELL_DBNAME_PROC=fossil_open \

                -Dgetenv=fossil_getenv \
                -Dfopen=fossil_fopen

$(OBJDIR)/sqlite3.o:	$(SRCDIR)/sqlite3.c $(SRCDIR)/../win/Makefile.mingw
	$(XTCC) $(SQLITE_OPTIONS) $(SQLITE_CFLAGS) -c $(SRCDIR)/sqlite3.c -o $(OBJDIR)/sqlite3.o

$(OBJDIR)/cson_amalgamation.o:	$(SRCDIR)/cson_amalgamation.c







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SQLITE_OPTIONS = -DSQLITE_OMIT_LOAD_EXTENSION=1 \
                 -DSQLITE_ENABLE_LOCKING_STYLE=0 \
                 -DSQLITE_THREADSAFE=0 \
                 -DSQLITE_DEFAULT_FILE_FORMAT=4 \
                 -DSQLITE_OMIT_DEPRECATED \
                 -DSQLITE_ENABLE_EXPLAIN_COMMENTS \
                 -D_HAVE__MINGW_H \
                 -DSQLITE_USE_MALLOC_H \
                 -DSQLITE_USE_MSIZE

SHELL_OPTIONS = -Dmain=sqlite3_shell \
                -DSQLITE_OMIT_LOAD_EXTENSION=1 \
                -DUSE_SYSTEM_SQLITE=$(USE_SYSTEM_SQLITE) \
                -DSQLITE_SHELL_DBNAME_PROC=fossil_open \
                -Daccess=win32_access \
                -Dgetenv=fossil_getenv \
                -Dfopen=fossil_fopen

$(OBJDIR)/sqlite3.o:	$(SRCDIR)/sqlite3.c $(SRCDIR)/../win/Makefile.mingw
	$(XTCC) $(SQLITE_OPTIONS) $(SQLITE_CFLAGS) -c $(SRCDIR)/sqlite3.c -o $(OBJDIR)/sqlite3.o

$(OBJDIR)/cson_amalgamation.o:	$(SRCDIR)/cson_amalgamation.c

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SQLITE_OPTIONS = -DSQLITE_OMIT_LOAD_EXTENSION=1 \
                 -DSQLITE_ENABLE_LOCKING_STYLE=0 \
                 -DSQLITE_THREADSAFE=0 \
                 -DSQLITE_DEFAULT_FILE_FORMAT=4 \
                 -DSQLITE_OMIT_DEPRECATED \
                 -DSQLITE_ENABLE_EXPLAIN_COMMENTS \
                 -D_HAVE_SQLITE_CONFIG_H \
                 -DSQLITE_USE_MALLOC_H \
                 -DSQLITE_USE_MSIZE

SHELL_OPTIONS = -Dmain=sqlite3_shell \
                -DSQLITE_OMIT_LOAD_EXTENSION=1 \



                -Dgetenv=fossil_getenv \
                -Dfopen=fossil_fopen

$(OBJDIR)/sqlite3.o:	$(SRCDIR)/sqlite3.c $(SRCDIR)/../win/Makefile.mingw.mistachkin
	$(XTCC) $(SQLITE_OPTIONS) $(SQLITE_CFLAGS) -c $(SRCDIR)/sqlite3.c -o $(OBJDIR)/sqlite3.o

$(OBJDIR)/cson_amalgamation.o:	$(SRCDIR)/cson_amalgamation.c







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SQLITE_OPTIONS = -DSQLITE_OMIT_LOAD_EXTENSION=1 \
                 -DSQLITE_ENABLE_LOCKING_STYLE=0 \
                 -DSQLITE_THREADSAFE=0 \
                 -DSQLITE_DEFAULT_FILE_FORMAT=4 \
                 -DSQLITE_OMIT_DEPRECATED \
                 -DSQLITE_ENABLE_EXPLAIN_COMMENTS \
                 -D_HAVE__MINGW_H \
                 -DSQLITE_USE_MALLOC_H \
                 -DSQLITE_USE_MSIZE

SHELL_OPTIONS = -Dmain=sqlite3_shell \
                -DSQLITE_OMIT_LOAD_EXTENSION=1 \
                -DUSE_SYSTEM_SQLITE=$(USE_SYSTEM_SQLITE) \
                -DSQLITE_SHELL_DBNAME_PROC=fossil_open \
                -Daccess=win32_access \
                -Dgetenv=fossil_getenv \
                -Dfopen=fossil_fopen

$(OBJDIR)/sqlite3.o:	$(SRCDIR)/sqlite3.c $(SRCDIR)/../win/Makefile.mingw.mistachkin
	$(XTCC) $(SQLITE_OPTIONS) $(SQLITE_CFLAGS) -c $(SRCDIR)/sqlite3.c -o $(OBJDIR)/sqlite3.o

$(OBJDIR)/cson_amalgamation.o:	$(SRCDIR)/cson_amalgamation.c

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                 /DSQLITE_OMIT_DEPRECATED \
                 /DSQLITE_ENABLE_EXPLAIN_COMMENTS

SHELL_OPTIONS = /Dmain=sqlite3_shell \
                /DSQLITE_OMIT_LOAD_EXTENSION=1 \
                /DUSE_SYSTEM_SQLITE=$(USE_SYSTEM_SQLITE) \
                /DSQLITE_SHELL_DBNAME_PROC=fossil_open \

                /Dgetenv=fossil_getenv \
                /Dfopen=fossil_fopen

SRC   = add_.c \
        allrepo_.c \
        attach_.c \
        bag_.c \







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                 /DSQLITE_OMIT_DEPRECATED \
                 /DSQLITE_ENABLE_EXPLAIN_COMMENTS

SHELL_OPTIONS = /Dmain=sqlite3_shell \
                /DSQLITE_OMIT_LOAD_EXTENSION=1 \
                /DUSE_SYSTEM_SQLITE=$(USE_SYSTEM_SQLITE) \
                /DSQLITE_SHELL_DBNAME_PROC=fossil_open \
                /Daccess=win32_access \
                /Dgetenv=fossil_getenv \
                /Dfopen=fossil_fopen

SRC   = add_.c \
        allrepo_.c \
        attach_.c \
        bag_.c \

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#define DT_UNKNOWN  0
#define DT_REG      S_IFREG
#define DT_DIR      S_IFDIR
#define DT_FIFO     S_IFIFO
#define DT_SOCK     S_IFSOCK
#define DT_CHR      S_IFCHR
#define DT_BLK      S_IFBLK


/* Macros for converting between st_mode and d_type */
#define IFTODT(mode) ((mode) & S_IFMT)
#define DTTOIF(type) (type)

/*
 * File type macros.  Note that block devices, sockets and links cannot be







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#define DT_UNKNOWN  0
#define DT_REG      S_IFREG
#define DT_DIR      S_IFDIR
#define DT_FIFO     S_IFIFO
#define DT_SOCK     S_IFSOCK
#define DT_CHR      S_IFCHR
#define DT_BLK      S_IFBLK
#define DT_LNK      S_IFLNK

/* Macros for converting between st_mode and d_type */
#define IFTODT(mode) ((mode) & S_IFMT)
#define DTTOIF(type) (type)

/*
 * File type macros.  Note that block devices, sockets and links cannot be

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<title>Change Log</title>

<h2>Changes For Version 1.29 (as yet unreleased)</h2>
  *  Add the ability to display content and diffs for UTF16 text files
     in the web interface.


  *  Honor timezones in imports from git.
  *  The [/reports] page now requires Read ("o") permissions. The "byweek"
     report now properly propagates the selected year through the event type
     filter links.
  *  The [/help/info | info command] now shows leaf status of the checkout.
  *  Add support for tunneling https through a http proxy (Ticket [e854101c4f]).
  *  Add option --empty to the "[/help?cmd=open | fossil open]" command.








<h2>Changes For Version 1.28 (2014-01-27)</h2>
  *  Enhance [/help?cmd=/reports | /reports] to support event type filtering.
  *  When cloning a repository, the user name passed via the URL (if any)
     is now used as the default local admin user's name.
  *  Enhance the SSH transport mechanism so that it runs a single instance of
     the "fossil" executable on the remote side, obviating the need for a shell





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<title>Change Log</title>

<h2>Changes For Version 1.29 (as yet unreleased)</h2>
  *  Add the ability to display content and diffs for UTF16 text files
     in the web interface.
  *  Add the "SaveAs..." button to the graphical diff display that results
     from using the --tk option with the [/help/diff | fossil diff] command.
  *  Honor timezones in imports from git.
  *  The [/reports] page now requires Read ("o") permissions. The "byweek"
     report now properly propagates the selected year through the event type
     filter links.
  *  The [/help/info | info command] now shows leaf status of the checkout.
  *  Add support for tunneling https through a http proxy (Ticket [e854101c4f]).
  *  Add option --empty to the "[/help?cmd=open | fossil open]" command.
  *  Enhanced [/help?cmd=/fileage|the fileage page] to support a glob parameter.
  *  Add --ignore-space-at-sol and --ignore-space-at-eol options to
     [/help?cmd=annotate|fossil annotate], [/help?cmd=blame|fossil blame],
     [/help?cmd=diff|fossil (g)diff], [/help?cmd=stash|fossil stash diff].
     The option -w activates both of them.
  *  Add button "Ignore Whitespace" to /annotate, /blame, /ci, /fdiff
     and /vdiff UI pages.

<h2>Changes For Version 1.28 (2014-01-27)</h2>
  *  Enhance [/help?cmd=/reports | /reports] to support event type filtering.
  *  When cloning a repository, the user name passed via the URL (if any)
     is now used as the default local admin user's name.
  *  Enhance the SSH transport mechanism so that it runs a single instance of
     the "fossil" executable on the remote side, obviating the need for a shell