/*
** Copyright (c) 2007 D. Richard Hipp
**
** This program is free software; you can redistribute it and/or
** modify it under the terms of the Simplified BSD License (also
** known as the "2-Clause License" or "FreeBSD License".)
** This program is distributed in the hope that it will be useful,
** but without any warranty; without even the implied warranty of
** merchantability or fitness for a particular purpose.
**
** Author contact information:
** drh@hwaci.com
** http://www.hwaci.com/drh/
**
*******************************************************************************
**
** This file contains code to do formatting of wiki text.
*/
#include "config.h"
#include <assert.h>
#include "wikiformat.h"
#if INTERFACE
/*
** Allowed wiki transformation operations
*/
#define WIKI_HTMLONLY 0x001 /* HTML markup only. No wiki */
#define WIKI_INLINE 0x002 /* Do not surround with <p>..</p> */
#define WIKI_NOBLOCK 0x004 /* No block markup of any kind */
#define WIKI_BUTTONS 0x008 /* Allow sub-menu buttons */
#define WIKI_NOBADLINKS 0x010 /* Ignore broken hyperlinks */
#define WIKI_LINKSONLY 0x020 /* No markup. Only decorate links */
#endif
/*
** These are the only markup attributes allowed.
*/
enum allowed_attr_t {
ATTR_ALIGN = 1,
ATTR_ALT,
ATTR_BGCOLOR,
ATTR_BORDER,
ATTR_CELLPADDING,
ATTR_CELLSPACING,
ATTR_CLASS,
ATTR_CLEAR,
ATTR_COLOR,
ATTR_COLSPAN,
ATTR_COMPACT,
ATTR_FACE,
ATTR_HEIGHT,
ATTR_HREF,
ATTR_HSPACE,
ATTR_ID,
ATTR_LINKS,
ATTR_NAME,
ATTR_ROWSPAN,
ATTR_SIZE,
ATTR_SRC,
ATTR_START,
ATTR_STYLE,
ATTR_TARGET,
ATTR_TYPE,
ATTR_VALIGN,
ATTR_VALUE,
ATTR_VSPACE,
ATTR_WIDTH
};
enum amsk_t {
AMSK_ALIGN = 0x00000001,
AMSK_ALT = 0x00000002,
AMSK_BGCOLOR = 0x00000004,
AMSK_BORDER = 0x00000008,
AMSK_CELLPADDING = 0x00000010,
AMSK_CELLSPACING = 0x00000020,
AMSK_CLASS = 0x00000040,
AMSK_CLEAR = 0x00000080,
AMSK_COLOR = 0x00000100,
AMSK_COLSPAN = 0x00000200,
AMSK_COMPACT = 0x00000400,
/* re-use = 0x00000800, */
AMSK_FACE = 0x00001000,
AMSK_HEIGHT = 0x00002000,
AMSK_HREF = 0x00004000,
AMSK_HSPACE = 0x00008000,
AMSK_ID = 0x00010000,
AMSK_LINKS = 0x00020000,
AMSK_NAME = 0x00040000,
AMSK_ROWSPAN = 0x00080000,
AMSK_SIZE = 0x00100000,
AMSK_SRC = 0x00200000,
AMSK_START = 0x00400000,
AMSK_STYLE = 0x00800000,
AMSK_TARGET = 0x01000000,
AMSK_TYPE = 0x02000000,
AMSK_VALIGN = 0x04000000,
AMSK_VALUE = 0x08000000,
AMSK_VSPACE = 0x10000000,
AMSK_WIDTH = 0x20000000
};
static const struct AllowedAttribute {
const char *zName;
unsigned int iMask;
} aAttribute[] = {
/* These indexes MUST line up with their
corresponding allowed_attr_t enum values.
*/
{ 0, 0 },
{ "align", AMSK_ALIGN },
{ "alt", AMSK_ALT },
{ "bgcolor", AMSK_BGCOLOR },
{ "border", AMSK_BORDER },
{ "cellpadding", AMSK_CELLPADDING },
{ "cellspacing", AMSK_CELLSPACING },
{ "class", AMSK_CLASS },
{ "clear", AMSK_CLEAR },
{ "color", AMSK_COLOR },
{ "colspan", AMSK_COLSPAN },
{ "compact", AMSK_COMPACT },
{ "face", AMSK_FACE },
{ "height", AMSK_HEIGHT },
{ "href", AMSK_HREF },
{ "hspace", AMSK_HSPACE },
{ "id", AMSK_ID },
{ "links", AMSK_LINKS },
{ "name", AMSK_NAME },
{ "rowspan", AMSK_ROWSPAN },
{ "size", AMSK_SIZE },
{ "src", AMSK_SRC },
{ "start", AMSK_START },
{ "style", AMSK_STYLE },
{ "target", AMSK_TARGET },
{ "type", AMSK_TYPE },
{ "valign", AMSK_VALIGN },
{ "value", AMSK_VALUE },
{ "vspace", AMSK_VSPACE },
{ "width", AMSK_WIDTH },
};
/*
** Use binary search to locate a tag in the aAttribute[] table.
*/
static int findAttr(const char *z){
int i, c, first, last;
first = 1;
last = count(aAttribute) - 1;
while( first<=last ){
i = (first+last)/2;
c = fossil_strcmp(aAttribute[i].zName, z);
if( c==0 ){
return i;
}else if( c<0 ){
first = i+1;
}else{
last = i-1;
}
}
return 0;
}
/*
** Allowed markup.
**
** Except for MARKUP_INVALID, this must all be in alphabetical order
** and in numerical sequence. The first markup type must be zero.
** The value for MARKUP_XYZ must correspond to the <xyz> entry
** in aAllowedMarkup[].
*/
#define MARKUP_INVALID 0
#define MARKUP_A 1
#define MARKUP_ADDRESS 2
#define MARKUP_HTML5_ARTICLE 3
#define MARKUP_HTML5_ASIDE 4
#define MARKUP_B 5
#define MARKUP_BIG 6
#define MARKUP_BLOCKQUOTE 7
#define MARKUP_BR 8
#define MARKUP_CENTER 9
#define MARKUP_CITE 10
#define MARKUP_CODE 11
#define MARKUP_COL 12
#define MARKUP_COLGROUP 13
#define MARKUP_DD 14
#define MARKUP_DFN 15
#define MARKUP_DIV 16
#define MARKUP_DL 17
#define MARKUP_DT 18
#define MARKUP_EM 19
#define MARKUP_FONT 20
#define MARKUP_HTML5_FOOTER 21
#define MARKUP_H1 22
#define MARKUP_H2 23
#define MARKUP_H3 24
#define MARKUP_H4 25
#define MARKUP_H5 26
#define MARKUP_H6 27
#define MARKUP_HTML5_HEADER 28
#define MARKUP_HR 29
#define MARKUP_I 30
#define MARKUP_IMG 31
#define MARKUP_KBD 32
#define MARKUP_LI 33
#define MARKUP_HTML5_NAV 34
#define MARKUP_NOBR 35
#define MARKUP_NOWIKI 36
#define MARKUP_OL 37
#define MARKUP_P 38
#define MARKUP_PRE 39
#define MARKUP_S 40
#define MARKUP_SAMP 41
#define MARKUP_HTML5_SECTION 42
#define MARKUP_SMALL 43
#define MARKUP_SPAN 44
#define MARKUP_STRIKE 45
#define MARKUP_STRONG 46
#define MARKUP_SUB 47
#define MARKUP_SUP 48
#define MARKUP_TABLE 49
#define MARKUP_TBODY 50
#define MARKUP_TD 51
#define MARKUP_TFOOT 52
#define MARKUP_TH 53
#define MARKUP_THEAD 54
#define MARKUP_TITLE 55
#define MARKUP_TR 56
#define MARKUP_TT 57
#define MARKUP_U 58
#define MARKUP_UL 59
#define MARKUP_VAR 60
#define MARKUP_VERBATIM 61
/*
** The various markup is divided into the following types:
*/
#define MUTYPE_SINGLE 0x0001 /* <img>, <br>, or <hr> */
#define MUTYPE_BLOCK 0x0002 /* Forms a new paragraph. ex: <p>, <h2> */
#define MUTYPE_FONT 0x0004 /* Font changes. ex: <b>, <font>, <sub> */
#define MUTYPE_LIST 0x0010 /* Lists. <ol>, <ul>, or <dl> */
#define MUTYPE_LI 0x0020 /* List items. <li>, <dd>, <dt> */
#define MUTYPE_TABLE 0x0040 /* <table> */
#define MUTYPE_TR 0x0080 /* <tr> */
#define MUTYPE_TD 0x0100 /* <td> or <th> */
#define MUTYPE_SPECIAL 0x0200 /* <nowiki> or <verbatim> */
#define MUTYPE_HYPERLINK 0x0400 /* <a> */
/*
** These markup types must have an end tag.
*/
#define MUTYPE_STACK (MUTYPE_BLOCK | MUTYPE_FONT | MUTYPE_LIST | MUTYPE_TABLE)
/*
** This markup types are allowed for "inline" text.
*/
#define MUTYPE_INLINE (MUTYPE_FONT | MUTYPE_HYPERLINK)
static const struct AllowedMarkup {
const char *zName; /* Name of the markup */
char iCode; /* The MARKUP_* code */
short int iType; /* The MUTYPE_* code */
int allowedAttr; /* Allowed attributes on this markup */
} aMarkup[] = {
{ 0, MARKUP_INVALID, 0, 0 },
{ "a", MARKUP_A, MUTYPE_HYPERLINK,
AMSK_HREF|AMSK_NAME|AMSK_CLASS|AMSK_TARGET|AMSK_STYLE },
{ "address", MARKUP_ADDRESS, MUTYPE_BLOCK, AMSK_STYLE },
{ "article", MARKUP_HTML5_ARTICLE, MUTYPE_BLOCK,
AMSK_ID|AMSK_CLASS|AMSK_STYLE },
{ "aside", MARKUP_HTML5_ASIDE, MUTYPE_BLOCK,
AMSK_ID|AMSK_CLASS|AMSK_STYLE },
{ "b", MARKUP_B, MUTYPE_FONT, AMSK_STYLE },
{ "big", MARKUP_BIG, MUTYPE_FONT, AMSK_STYLE },
{ "blockquote", MARKUP_BLOCKQUOTE, MUTYPE_BLOCK, AMSK_STYLE },
{ "br", MARKUP_BR, MUTYPE_SINGLE, AMSK_CLEAR },
{ "center", MARKUP_CENTER, MUTYPE_BLOCK, AMSK_STYLE },
{ "cite", MARKUP_CITE, MUTYPE_FONT, AMSK_STYLE },
{ "code", MARKUP_CODE, MUTYPE_FONT, AMSK_STYLE },
{ "col", MARKUP_COL, MUTYPE_SINGLE,
AMSK_ALIGN|AMSK_CLASS|AMSK_COLSPAN|AMSK_WIDTH|AMSK_STYLE },
{ "colgroup", MARKUP_COLGROUP, MUTYPE_BLOCK,
AMSK_ALIGN|AMSK_CLASS|AMSK_COLSPAN|AMSK_WIDTH|AMSK_STYLE},
{ "dd", MARKUP_DD, MUTYPE_LI, AMSK_STYLE },
{ "dfn", MARKUP_DFN, MUTYPE_FONT, AMSK_STYLE },
{ "div", MARKUP_DIV, MUTYPE_BLOCK,
AMSK_ID|AMSK_CLASS|AMSK_STYLE },
{ "dl", MARKUP_DL, MUTYPE_LIST,
AMSK_COMPACT|AMSK_STYLE },
{ "dt", MARKUP_DT, MUTYPE_LI, AMSK_STYLE },
{ "em", MARKUP_EM, MUTYPE_FONT, AMSK_STYLE },
{ "font", MARKUP_FONT, MUTYPE_FONT,
AMSK_COLOR|AMSK_FACE|AMSK_SIZE|AMSK_STYLE },
{ "footer", MARKUP_HTML5_FOOTER, MUTYPE_BLOCK,
AMSK_ID|AMSK_CLASS|AMSK_STYLE },
{ "h1", MARKUP_H1, MUTYPE_BLOCK,
AMSK_ALIGN|AMSK_CLASS|AMSK_STYLE },
{ "h2", MARKUP_H2, MUTYPE_BLOCK,
AMSK_ALIGN|AMSK_CLASS|AMSK_STYLE },
{ "h3", MARKUP_H3, MUTYPE_BLOCK,
AMSK_ALIGN|AMSK_CLASS|AMSK_STYLE },
{ "h4", MARKUP_H4, MUTYPE_BLOCK,
AMSK_ALIGN|AMSK_CLASS|AMSK_STYLE },
{ "h5", MARKUP_H5, MUTYPE_BLOCK,
AMSK_ALIGN|AMSK_CLASS|AMSK_STYLE },
{ "h6", MARKUP_H6, MUTYPE_BLOCK,
AMSK_ALIGN|AMSK_CLASS|AMSK_STYLE },
{ "header", MARKUP_HTML5_HEADER, MUTYPE_BLOCK,
AMSK_ID|AMSK_CLASS|AMSK_STYLE },
{ "hr", MARKUP_HR, MUTYPE_SINGLE,
AMSK_ALIGN|AMSK_COLOR|AMSK_SIZE|AMSK_WIDTH|
AMSK_STYLE|AMSK_CLASS },
{ "i", MARKUP_I, MUTYPE_FONT, AMSK_STYLE },
{ "img", MARKUP_IMG, MUTYPE_SINGLE,
AMSK_ALIGN|AMSK_ALT|AMSK_BORDER|AMSK_HEIGHT|
AMSK_HSPACE|AMSK_SRC|AMSK_VSPACE|AMSK_WIDTH|AMSK_STYLE },
{ "kbd", MARKUP_KBD, MUTYPE_FONT, AMSK_STYLE },
{ "li", MARKUP_LI, MUTYPE_LI,
AMSK_TYPE|AMSK_VALUE|AMSK_STYLE },
{ "nav", MARKUP_HTML5_NAV, MUTYPE_BLOCK,
AMSK_ID|AMSK_CLASS|AMSK_STYLE },
{ "nobr", MARKUP_NOBR, MUTYPE_FONT, 0 },
{ "nowiki", MARKUP_NOWIKI, MUTYPE_SPECIAL, 0 },
{ "ol", MARKUP_OL, MUTYPE_LIST,
AMSK_START|AMSK_TYPE|AMSK_COMPACT|AMSK_STYLE },
{ "p", MARKUP_P, MUTYPE_BLOCK,
AMSK_ALIGN|AMSK_CLASS|AMSK_STYLE },
{ "pre", MARKUP_PRE, MUTYPE_BLOCK, AMSK_STYLE },
{ "s", MARKUP_S, MUTYPE_FONT, AMSK_STYLE },
{ "samp", MARKUP_SAMP, MUTYPE_FONT, AMSK_STYLE },
{ "section", MARKUP_HTML5_SECTION, MUTYPE_BLOCK,
AMSK_ID|AMSK_CLASS|AMSK_STYLE },
{ "small", MARKUP_SMALL, MUTYPE_FONT, AMSK_STYLE },
{ "span", MARKUP_SPAN, MUTYPE_BLOCK,
AMSK_ALIGN|AMSK_CLASS|AMSK_STYLE },
{ "strike", MARKUP_STRIKE, MUTYPE_FONT, AMSK_STYLE },
{ "strong", MARKUP_STRONG, MUTYPE_FONT, AMSK_STYLE },
{ "sub", MARKUP_SUB, MUTYPE_FONT, AMSK_STYLE },
{ "sup", MARKUP_SUP, MUTYPE_FONT, AMSK_STYLE },
{ "table", MARKUP_TABLE, MUTYPE_TABLE,
AMSK_ALIGN|AMSK_BGCOLOR|AMSK_BORDER|AMSK_CELLPADDING|
AMSK_CELLSPACING|AMSK_HSPACE|AMSK_VSPACE|AMSK_CLASS|
AMSK_STYLE },
{ "tbody", MARKUP_TBODY, MUTYPE_BLOCK,
AMSK_ALIGN|AMSK_CLASS|AMSK_STYLE },
{ "td", MARKUP_TD, MUTYPE_TD,
AMSK_ALIGN|AMSK_BGCOLOR|AMSK_COLSPAN|
AMSK_ROWSPAN|AMSK_VALIGN|AMSK_CLASS|AMSK_STYLE },
{ "tfoot", MARKUP_TFOOT, MUTYPE_BLOCK,
AMSK_ALIGN|AMSK_CLASS|AMSK_STYLE },
{ "th", MARKUP_TH, MUTYPE_TD,
AMSK_ALIGN|AMSK_BGCOLOR|AMSK_COLSPAN|
AMSK_ROWSPAN|AMSK_VALIGN|AMSK_CLASS|AMSK_STYLE },
{ "thead", MARKUP_THEAD, MUTYPE_BLOCK,
AMSK_ALIGN|AMSK_CLASS|AMSK_STYLE },
{ "title", MARKUP_TITLE, MUTYPE_BLOCK, 0 },
{ "tr", MARKUP_TR, MUTYPE_TR,
AMSK_ALIGN|AMSK_BGCOLOR|AMSK_VALIGN|AMSK_CLASS|AMSK_STYLE },
{ "tt", MARKUP_TT, MUTYPE_FONT, AMSK_STYLE },
{ "u", MARKUP_U, MUTYPE_FONT, AMSK_STYLE },
{ "ul", MARKUP_UL, MUTYPE_LIST,
AMSK_TYPE|AMSK_COMPACT|AMSK_STYLE },
{ "var", MARKUP_VAR, MUTYPE_FONT, AMSK_STYLE },
{ "verbatim", MARKUP_VERBATIM, MUTYPE_SPECIAL,
AMSK_ID|AMSK_TYPE },
};
void show_allowed_wiki_markup( void ){
int i; /* loop over allowedAttr */
for( i=1 ; i<=count(aMarkup) - 1 ; i++ ){
@ <%s(aMarkup[i].zName)>
}
}
/*
** Use binary search to locate a tag in the aMarkup[] table.
*/
static int findTag(const char *z){
int i, c, first, last;
first = 1;
last = count(aMarkup) - 1;
while( first<=last ){
i = (first+last)/2;
c = fossil_strcmp(aMarkup[i].zName, z);
if( c==0 ){
assert( aMarkup[i].iCode==i );
return i;
}else if( c<0 ){
first = i+1;
}else{
last = i-1;
}
}
return MARKUP_INVALID;
}
/*
** Token types
*/
#define TOKEN_MARKUP 1 /* <...> */
#define TOKEN_CHARACTER 2 /* "&" or "<" not part of markup */
#define TOKEN_LINK 3 /* [...] */
#define TOKEN_PARAGRAPH 4 /* blank lines */
#define TOKEN_NEWLINE 5 /* A single "\n" */
#define TOKEN_BUL_LI 6 /* " * " */
#define TOKEN_NUM_LI 7 /* " # " */
#define TOKEN_ENUM 8 /* " \(?\d+[.)]? " */
#define TOKEN_INDENT 9 /* " " */
#define TOKEN_RAW 10 /* Output exactly (used when wiki-use-html==1) */
#define TOKEN_TEXT 11 /* None of the above */
/*
** State flags. Save the lower 16 bits for the WIKI_* flags.
*/
#define AT_NEWLINE 0x0010000 /* At start of a line */
#define AT_PARAGRAPH 0x0020000 /* At start of a paragraph */
#define ALLOW_WIKI 0x0040000 /* Allow wiki markup */
#define ALLOW_LINKS 0x0080000 /* Allow [...] hyperlinks */
#define FONT_MARKUP_ONLY 0x0100000 /* Only allow MUTYPE_FONT markup */
#define INLINE_MARKUP_ONLY 0x0200000 /* Allow only "inline" markup */
#define IN_LIST 0x0400000 /* Within wiki <ul> or <ol> */
/*
** Current state of the rendering engine
*/
typedef struct Renderer Renderer;
struct Renderer {
Blob *pOut; /* Output appended to this blob */
int state; /* Flag that govern rendering */
unsigned renderFlags; /* Flags from the client */
int wikiList; /* Current wiki list type */
int inVerbatim; /* True in <verbatim> mode */
int preVerbState; /* Value of state prior to verbatim */
int wantAutoParagraph; /* True if a <p> is desired */
int inAutoParagraph; /* True if within an automatic paragraph */
const char *zVerbatimId; /* The id= attribute of <verbatim> */
int nStack; /* Number of elements on the stack */
int nAlloc; /* Space allocated for aStack */
struct sStack {
short iCode; /* Markup code */
short allowWiki; /* ALLOW_WIKI if wiki allowed before tag */
const char *zId; /* ID attribute or NULL */
} *aStack;
};
/*
** Return TRUE if HTML should be used as the sole markup language for wiki.
**
** On first invocation, this routine consults the "wiki-use-html" setting.
** It caches the result for subsequent invocations, under the assumption
** that the setting will not change.
*/
static int wikiUsesHtml(void){
static int r = -1;
if( r<0 ) r = db_get_boolean("wiki-use-html", 0);
return r;
}
/*
** z points to a "<" character. Check to see if this is the start of
** a valid markup. If it is, return the total number of characters in
** the markup including the initial "<" and the terminating ">". If
** it is not well-formed markup, return 0.
*/
int htmlTagLength(const char *z){
int n = 1;
int inparen = 0;
int c;
if( z[n]=='/' ){ n++; }
if( !fossil_isalpha(z[n]) ) return 0;
while( fossil_isalnum(z[n]) || z[n]=='-' ){ n++; }
c = z[n];
if( c=='/' && z[n+1]=='>' ){ return n+2; }
if( c!='>' && !fossil_isspace(c) ) return 0;
while( (c = z[n])!=0 && (c!='>' || inparen) ){
if( c==inparen ){
inparen = 0;
}else if( inparen==0 && (c=='"' || c=='\'') ){
inparen = c;
}
n++;
}
if( z[n]!='>' ) return 0;
return n+1;
}
/*
** z points to a "\n" character. Check to see if this newline is
** followed by one or more blank lines. If it is, return the number
** of characters through the closing "\n". If not, return 0.
*/
static int paragraphBreakLength(const char *z){
int i, n;
int nNewline = 1;
for(i=1, n=0; fossil_isspace(z[i]); i++){
if( z[i]=='\n' ){
nNewline++;
n = i;
}
}
if( nNewline>=2 ){
return n+1;
}else{
return 0;
}
}
/*
** Return the number of characters until the next "interesting"
** characters.
**
** Interesting characters are:
**
** <
** &
** \n
** [
**
** The "[" is only considered if flags contain ALLOW_LINKS or ALLOW_WIKI.
** The "\n" is only considered interesting if the flags constains ALLOW_WIKI.
*/
static int textLength(const char *z, int flags){
int n = 0;
int c, x1, x2;
if( flags & ALLOW_WIKI ){
x1 = '[';
x2 = '\n';
}else if( flags & ALLOW_LINKS ){
x1 = '[';
x2 = 0;
}else{
x1 = x2 = 0;
}
while( (c = z[0])!=0 && c!='<' && c!='&' && c!=x1 && c!=x2 ){
n++;
z++;
}
return n;
}
/*
** Return true if z[] begins with an HTML character element.
*/
static int isElement(const char *z){
int i;
assert( z[0]=='&' );
if( z[1]=='#' ){
for(i=2; fossil_isdigit(z[i]); i++){}
return i>2 && z[i]==';';
}else{
for(i=1; fossil_isalpha(z[i]); i++){}
return i>1 && z[i]==';';
}
}
/*
** Check to see if the z[] string is the beginning of a wiki list item.
** If it is, return the length of the bullet text. Otherwise return 0.
*/
static int listItemLength(const char *z, const char listChar){
int i, n;
n = 0;
i = 0;
while( z[n]==' ' || z[n]=='\t' ){
if( z[n]=='\t' ) i++;
i++;
n++;
}
if( i<2 || z[n]!=listChar ) return 0;
n++;
i = 0;
while( z[n]==' ' || z[n]=='\t' ){
if( z[n]=='\t' ) i++;
i++;
n++;
}
if( i<2 || fossil_isspace(z[n]) ) return 0;
return n;
}
/*
** Check to see if the z[] string is the beginning of a enumeration value.
** If it is, return the length of the bullet text. Otherwise return 0.
**
** Syntax:
** * a tab or two or more spaces
** * one or more digits
** * optional "."
** * another tab or two ore more spaces.
**
*/
static int enumLength(const char *z){
int i, n;
n = 0;
i = 0;
while( z[n]==' ' || z[n]=='\t' ){
if( z[n]=='\t' ) i++;
i++;
n++;
}
if( i<2 ) return 0;
for(i=0; fossil_isdigit(z[n]); i++, n++){}
if( i==0 ) return 0;
if( z[n]=='.' ){
n++;
}
i = 0;
while( z[n]==' ' || z[n]=='\t' ){
if( z[n]=='\t' ) i++;
i++;
n++;
}
if( i<2 || fossil_isspace(z[n]) ) return 0;
return n;
}
/*
** Check to see if the z[] string is the beginning of an indented
** paragraph. If it is, return the length of the indent. Otherwise
** return 0.
*/
static int indentLength(const char *z){
int i, n;
n = 0;
i = 0;
while( z[n]==' ' || z[n]=='\t' ){
if( z[n]=='\t' ) i++;
i++;
n++;
}
if( i<2 || fossil_isspace(z[n]) ) return 0;
return n;
}
/*
** Check to see if the z[] string is a wiki hyperlink. If it is,
** return the length of the hyperlink. Otherwise return 0.
*/
static int linkLength(const char *z){
int n;
assert( z[0]=='[' );
for(n=0; z[n] && z[n]!=']'; n++){}
if( z[n]==']' ){
return n+1;
}else{
return 0;
}
}
/*
** Get the next wiki token.
**
** z points to the start of a token. Return the number of
** characters in that token. Write the token type into *pTokenType.
*/
static int nextWikiToken(const char *z, Renderer *p, int *pTokenType){
int n;
if( z[0]=='<' ){
n = htmlTagLength(z);
if( n>0 ){
*pTokenType = TOKEN_MARKUP;
return n;
}else{
*pTokenType = TOKEN_CHARACTER;
return 1;
}
}
if( z[0]=='&' && (p->inVerbatim || !isElement(z)) ){
*pTokenType = TOKEN_CHARACTER;
return 1;
}
if( (p->state & ALLOW_WIKI)!=0 ){
if( z[0]=='\n' ){
n = paragraphBreakLength(z);
if( n>0 ){
*pTokenType = TOKEN_PARAGRAPH;
return n;
}else if( fossil_isspace(z[1]) ){
*pTokenType = TOKEN_NEWLINE;
return 1;
}
}
if( (p->state & AT_NEWLINE)!=0 && fossil_isspace(z[0]) ){
n = listItemLength(z, '*');
if( n>0 ){
*pTokenType = TOKEN_BUL_LI;
return n;
}
n = listItemLength(z, '#');
if( n>0 ){
*pTokenType = TOKEN_NUM_LI;
return n;
}
n = enumLength(z);
if( n>0 ){
*pTokenType = TOKEN_ENUM;
return n;
}
}
if( (p->state & AT_PARAGRAPH)!=0 && fossil_isspace(z[0]) ){
n = indentLength(z);
if( n>0 ){
*pTokenType = TOKEN_INDENT;
return n;
}
}
if( z[0]=='[' && (n = linkLength(z))>0 ){
*pTokenType = TOKEN_LINK;
return n;
}
}else if( (p->state & ALLOW_LINKS)!=0 && z[0]=='[' && (n = linkLength(z))>0 ){
*pTokenType = TOKEN_LINK;
return n;
}
*pTokenType = TOKEN_TEXT;
return 1 + textLength(z+1, p->state);
}
/*
** Parse only Wiki links, return everything else as TOKEN_RAW.
**
** z points to the start of a token. Return the number of
** characters in that token. Write the token type into *pTokenType.
*/
static int nextRawToken(const char *z, Renderer *p, int *pTokenType){
int n;
if( z[0]=='[' && (n = linkLength(z))>0 ){
*pTokenType = TOKEN_LINK;
return n;
}
*pTokenType = TOKEN_RAW;
return 1 + textLength(z+1, p->state);
}
/*
** A single markup is parsed into an instance of the following
** structure.
*/
typedef struct ParsedMarkup ParsedMarkup;
struct ParsedMarkup {
unsigned char endTag; /* True if </...> instead of <...> */
unsigned char iCode; /* MARKUP_* */
unsigned char nAttr; /* Number of attributes */
unsigned short iType; /* MUTYPE_* */
struct {
unsigned char iACode; /* ATTR_* */
char *zValue; /* Argument to this attribute. Might be NULL */
char cTerm; /* Original argument termination character */
} aAttr[10];
};
/*
** z[] is an HTML markup element - something that begins with '<'.
** Parse this element into the p structure.
**
** The content of z[] might be modified by converting characters
** to lowercase and by inserting some "\000" characters.
*/
static int parseMarkup(ParsedMarkup *p, char *z){
int i, j, c;
int iACode;
char *zValue;
int seen = 0;
char zTag[100];
if( z[1]=='/' ){
p->endTag = 1;
i = 2;
}else{
p->endTag = 0;
i = 1;
}
j = 0;
while( fossil_isalnum(z[i]) ){
if( j<sizeof(zTag)-1 ) zTag[j++] = fossil_tolower(z[i]);
i++;
}
zTag[j] = 0;
p->iCode = findTag(zTag);
p->iType = aMarkup[p->iCode].iType;
p->nAttr = 0;
c = 0;
if( z[i]=='-' ){
p->aAttr[0].iACode = iACode = ATTR_ID;
i++;
p->aAttr[0].zValue = &z[i];
while( fossil_isalnum(z[i]) ){ i++; }
p->aAttr[0].cTerm = c = z[i];
z[i++] = 0;
p->nAttr = 1;
if( c=='>' ) return 0;
}
while( fossil_isspace(z[i]) ){ i++; }
while( c!='>' && p->nAttr<8 && fossil_isalpha(z[i]) ){
int attrOk; /* True to preserve attribute. False to ignore it */
j = 0;
while( fossil_isalnum(z[i]) ){
if( j<sizeof(zTag)-1 ) zTag[j++] = fossil_tolower(z[i]);
i++;
}
zTag[j] = 0;
p->aAttr[p->nAttr].iACode = iACode = findAttr(zTag);
attrOk = iACode!=0 && (seen & aAttribute[iACode].iMask)==0;
while( fossil_isspace(z[i]) ){ z++; }
if( z[i]!='=' ){
p->aAttr[p->nAttr].zValue = 0;
p->aAttr[p->nAttr].cTerm = 0;
c = 0;
}else{
i++;
while( fossil_isspace(z[i]) ){ z++; }
if( z[i]=='"' ){
i++;
zValue = &z[i];
while( z[i] && z[i]!='"' ){ i++; }
}else if( z[i]=='\'' ){
i++;
zValue = &z[i];
while( z[i] && z[i]!='\'' ){ i++; }
}else{
zValue = &z[i];
while( !fossil_isspace(z[i]) && z[i]!='>' ){ z++; }
}
if( attrOk ){
p->aAttr[p->nAttr].zValue = zValue;
p->aAttr[p->nAttr].cTerm = c = z[i];
z[i] = 0;
}
i++;
}
if( attrOk ){
seen |= aAttribute[iACode].iMask;
p->nAttr++;
}
while( fossil_isspace(z[i]) ){ i++; }
if( z[i]=='>' || (z[i]=='/' && z[i+1]=='>') ) break;
}
return seen;
}
/*
** Render markup on the given blob.
*/
static void renderMarkup(Blob *pOut, ParsedMarkup *p){
int i;
if( p->endTag ){
blob_appendf(pOut, "</%s>", aMarkup[p->iCode].zName);
}else{
blob_appendf(pOut, "<%s", aMarkup[p->iCode].zName);
for(i=0; i<p->nAttr; i++){
blob_appendf(pOut, " %s", aAttribute[p->aAttr[i].iACode].zName);
if( p->aAttr[i].zValue ){
const char *zVal = p->aAttr[i].zValue;
if( p->aAttr[i].iACode==ATTR_SRC && zVal[0]=='/' ){
blob_appendf(pOut, "=\"%s%s\"", g.zTop, zVal);
}else{
blob_appendf(pOut, "=\"%s\"", zVal);
}
}
}
if (p->iType & MUTYPE_SINGLE){
blob_append(pOut, " /", 2);
}
blob_append(pOut, ">", 1);
}
}
/*
** When the markup was parsed, some "\000" may have been inserted.
** This routine restores to those "\000" values back to their
** original content.
*/
static void unparseMarkup(ParsedMarkup *p){
int i, n;
for(i=0; i<p->nAttr; i++){
char *z = p->aAttr[i].zValue;
if( z==0 ) continue;
if( p->aAttr[i].cTerm ){
n = strlen(z);
z[n] = p->aAttr[i].cTerm;
}
}
}
/*
** Return the value of attribute attrId. Return NULL if there is no
** ID attribute.
*/
static const char *attributeValue(ParsedMarkup *p, int attrId){
int i;
for(i=0; i<p->nAttr; i++){
if( p->aAttr[i].iACode==attrId ){
return p->aAttr[i].zValue;
}
}
return 0;
}
/*
** Return the ID attribute for markup. Return NULL if there is no
** ID attribute.
*/
static const char *markupId(ParsedMarkup *p){
return attributeValue(p, ATTR_ID);
}
/*
** Check markup pMarkup to see if it is a hyperlink with class "button"
** that is follows by simple text and an </a> only. Example:
**
** <a class="button" href="../index.wiki">Index</a>
**
** If the markup matches this pattern, and if the WIKI_BUTTONS flag was
** passed to wiki_convert(), then transform this link into a submenu
** button, skip the text, and set *pN equal to the total length of the
** text through the end of </a> and return true. If the markup does
** not match or if WIKI_BUTTONS is not set, then make no changes to *pN
** and return false.
*/
static int isButtonHyperlink(
Renderer *p, /* Renderer state */
ParsedMarkup *pMarkup, /* Potential button markup */
const char *z, /* Complete text of Wiki */
int *pN /* Characters of z[] consumed */
){
const char *zClass;
const char *zHref;
char *zTag;
int i, j;
if( (p->state & WIKI_BUTTONS)==0 ) return 0;
zClass = attributeValue(pMarkup, ATTR_CLASS);
if( zClass==0 ) return 0;
if( fossil_strcmp(zClass, "button")!=0 ) return 0;
zHref = attributeValue(pMarkup, ATTR_HREF);
if( zHref==0 ) return 0;
i = *pN;
while( z[i] && z[i]!='<' ){ i++; }
if( fossil_strnicmp(&z[i], "</a>",4)!=0 ) return 0;
for(j=*pN; fossil_isspace(z[j]); j++){}
zTag = mprintf("%.*s", i-j, &z[j]);
j = (int)strlen(zTag);
while( j>0 && fossil_isspace(zTag[j-1]) ){ j--; }
if( j==0 ) return 0;
style_submenu_element(zTag, "%s", zHref);
*pN = i+4;
return 1;
}
/*
** Pop a single element off of the stack. As the element is popped,
** output its end tag if it is not a </div> tag.
*/
static void popStack(Renderer *p){
if( p->nStack ){
int iCode;
p->nStack--;
iCode = p->aStack[p->nStack].iCode;
if( (iCode!=MARKUP_DIV || p->aStack[p->nStack].zId==0) && p->pOut ){
blob_appendf(p->pOut, "</%s>", aMarkup[iCode].zName);
}
}
}
/*
** Push a new markup value onto the stack. Enlarge the stack
** if necessary.
*/
static void pushStackWithId(Renderer *p, int elem, const char *zId, int w){
if( p->nStack>=p->nAlloc ){
p->nAlloc = p->nAlloc*2 + 100;
p->aStack = fossil_realloc(p->aStack, p->nAlloc*sizeof(p->aStack[0]));
}
p->aStack[p->nStack].iCode = elem;
p->aStack[p->nStack].zId = zId;
p->aStack[p->nStack].allowWiki = w;
p->nStack++;
}
static void pushStack(Renderer *p, int elem){
pushStackWithId(p, elem, 0, 0);
}
/*
** Pop the stack until the top-most iTag element is removed.
** If there is no iTag element on the stack, this routine
** is a no-op.
*/
static void popStackToTag(Renderer *p, int iTag){
int i;
for(i=p->nStack-1; i>=0; i--){
if( p->aStack[i].iCode!=iTag ) continue;
if( p->aStack[i].zId ) continue;
break;
}
if( i<0 ) return;
while( p->nStack>i ){
popStack(p);
}
}
/*
** Attempt to find a find a tag of type iTag with id zId. Return -1
** if not found. If found, return its stack level.
*/
static int findTagWithId(Renderer *p, int iTag, const char *zId){
int i;
assert( zId!=0 );
for(i=p->nStack-1; i>=0; i--){
if( p->aStack[i].iCode!=iTag ) continue;
if( p->aStack[i].zId==0 ) continue;
if( fossil_strcmp(zId, p->aStack[i].zId)!=0 ) continue;
break;
}
return i;
}
/*
** Pop the stack until the top-most element of the stack
** is an element that matches the type in iMask. Return
** code of the markup element that is on left on top of the stack.
** If the stack does not have an element
** that matches iMask, then leave the stack unchanged and
** return false (MARKUP_INVALID).
*/
static int backupToType(Renderer *p, int iMask){
int i;
for(i=p->nStack-1; i>=0; i--){
if( aMarkup[p->aStack[i].iCode].iType & iMask ) break;
}
if( i<0 ) return 0;
i++;
while( p->nStack>i ){
popStack(p);
}
return p->aStack[i-1].iCode;
}
/*
** Begin a new paragraph if that something that is needed.
*/
static void startAutoParagraph(Renderer *p){
if( p->wantAutoParagraph==0 ) return;
if( p->state & WIKI_LINKSONLY ) return;
if( p->wikiList==MARKUP_OL || p->wikiList==MARKUP_UL ) return;
blob_append(p->pOut, "<p>", -1);
p->wantAutoParagraph = 0;
p->inAutoParagraph = 1;
}
/*
** End a paragraph if we are in one.
*/
static void endAutoParagraph(Renderer *p){
if( p->inAutoParagraph ){
p->inAutoParagraph = 0;
}
}
/*
** If the input string corresponds to an existing baseline,
** return true.
*/
static int is_valid_hname(const char *z){
int n = strlen(z);
if( n<4 || n>HNAME_MAX ) return 0;
if( !validate16(z, n) ) return 0;
return 1;
}
/*
** Return TRUE if a hash name corresponds to an artifact in this
** repository.
*/
static int in_this_repo(const char *zUuid){
static Stmt q;
int rc;
int n;
char zU2[HNAME_MAX+1];
db_static_prepare(&q,
"SELECT 1 FROM blob WHERE uuid>=:u AND uuid<:u2"
);
db_bind_text(&q, ":u", zUuid);
n = (int)strlen(zUuid);
if( n>=sizeof(zU2) ) n = sizeof(zU2)-1;
memcpy(zU2, zUuid, n);
zU2[n-1]++;
zU2[n] = 0;
db_bind_text(&q, ":u2", zU2);
rc = db_step(&q);
db_reset(&q);
return rc==SQLITE_ROW;
}
/*
** zTarget is guaranteed to be a UUID. It might be the UUID of a ticket.
** If it is, store in *pClosed a true or false depending on whether or not
** the ticket is closed and return true. If zTarget
** is not the UUID of a ticket, return false.
*/
static int is_ticket(
const char *zTarget, /* Ticket UUID */
int *pClosed /* True if the ticket is closed */
){
static Stmt q;
static int once = 1;
int n;
int rc;
char zLower[HNAME_MAX+1];
char zUpper[HNAME_MAX+1];
n = strlen(zTarget);
memcpy(zLower, zTarget, n+1);
canonical16(zLower, n+1);
memcpy(zUpper, zLower, n+1);
zUpper[n-1]++;
if( once ){
const char *zClosedExpr = db_get("ticket-closed-expr", "status='Closed'");
db_static_prepare(&q,
"SELECT %s FROM ticket "
" WHERE tkt_uuid>=:lwr AND tkt_uuid<:upr",
zClosedExpr /*safe-for-%s*/
);
once = 0;
}
db_bind_text(&q, ":lwr", zLower);
db_bind_text(&q, ":upr", zUpper);
if( db_step(&q)==SQLITE_ROW ){
rc = 1;
*pClosed = db_column_int(&q, 0);
}else{
rc = 0;
}
db_reset(&q);
return rc;
}
/*
** Return a pointer to the name part of zTarget (skipping the "wiki:" prefix
** if there is one) if zTarget is a valid wiki page name. Return NULL if
** zTarget names a page that does not exist.
*/
static const char *validWikiPageName(Renderer *p, const char *zTarget){
if( strncmp(zTarget, "wiki:", 5)==0
&& wiki_name_is_wellformed((const unsigned char*)zTarget) ){
return zTarget+5;
}
if( strcmp(zTarget, "Sandbox")==0 ) return zTarget;
if( wiki_name_is_wellformed((const unsigned char *)zTarget)
&& ((p->state & WIKI_NOBADLINKS)==0 ||
db_exists("SELECT 1 FROM tag WHERE tagname GLOB 'wiki-%q'"
" AND (SELECT value FROM tagxref WHERE tagid=tag.tagid"
" ORDER BY mtime DESC LIMIT 1) > 0", zTarget))
){
return zTarget;
}
return 0;
}
/*
** Resolve a hyperlink. The zTarget argument is the content of the [...]
** in the wiki. Append to the output string whatever text is appropriate
** for opening the hyperlink. Write into zClose[0...nClose-1] text that will
** close the markup.
**
** If this routine determines that no hyperlink should be generated, then
** set zClose[0] to 0.
**
** Actually, this routine might or might not append the hyperlink, depending
** on current rendering rules: specifically does the current user have
** "History" permission.
**
** [http://www.fossil-scm.org/]
** [https://www.fossil-scm.org/]
** [ftp://www.fossil-scm.org/]
** [mailto:fossil-users@lists.fossil-scm.org]
**
** [/path]
**
** [./relpath]
**
** [WikiPageName]
** [wiki:WikiPageName]
**
** [0123456789abcdef]
**
** [#fragment]
**
** [2010-02-27 07:13]
*/
static void openHyperlink(
Renderer *p, /* Rendering context */
const char *zTarget, /* Hyperlink target; text within [...] */
char *zClose, /* Write hyperlink closing text here */
int nClose, /* Bytes available in zClose[] */
const char *zOrig /* Complete document text */
){
const char *zTerm = "</a>";
const char *z;
assert( nClose>=20 );
if( strncmp(zTarget, "http:", 5)==0
|| strncmp(zTarget, "https:", 6)==0
|| strncmp(zTarget, "ftp:", 4)==0
|| strncmp(zTarget, "mailto:", 7)==0
){
blob_appendf(p->pOut, "<a href=\"%s\">", zTarget);
}else if( zTarget[0]=='/' ){
blob_appendf(p->pOut, "<a href=\"%R%h\">", zTarget);
}else if( zTarget[0]=='.'
&& (zTarget[1]=='/' || (zTarget[1]=='.' && zTarget[2]=='/'))
&& (p->state & WIKI_LINKSONLY)==0 ){
blob_appendf(p->pOut, "<a href=\"%h\">", zTarget);
}else if( zTarget[0]=='#' ){
blob_appendf(p->pOut, "<a href=\"%h\">", zTarget);
}else if( is_valid_hname(zTarget) ){
int isClosed = 0;
if( strlen(zTarget)<=HNAME_MAX && is_ticket(zTarget, &isClosed) ){
/* Special display processing for tickets. Display the hyperlink
** as crossed out if the ticket is closed.
*/
if( isClosed ){
if( g.perm.Hyperlink ){
blob_appendf(p->pOut,
"%z<span class=\"wikiTagCancelled\">[",
href("%R/info/%s",zTarget)
);
zTerm = "]</span></a>";
}else{
blob_appendf(p->pOut,"<span class=\"wikiTagCancelled\">[");
zTerm = "]</span>";
}
}else{
if( g.perm.Hyperlink ){
blob_appendf(p->pOut,"%z[", href("%R/info/%s", zTarget));
zTerm = "]</a>";
}else{
blob_appendf(p->pOut, "[");
zTerm = "]";
}
}
}else if( !in_this_repo(zTarget) ){
if( (p->state & (WIKI_LINKSONLY|WIKI_NOBADLINKS))!=0 ){
zTerm = "";
}else{
blob_appendf(p->pOut, "<span class=\"brokenlink\">[");
zTerm = "]</span>";
}
}else if( g.perm.Hyperlink ){
blob_appendf(p->pOut, "%z[",href("%R/info/%s", zTarget));
zTerm = "]</a>";
}else{
zTerm = "";
}
}else if( strlen(zTarget)>=10 && fossil_isdigit(zTarget[0]) && zTarget[4]=='-'
&& db_int(0, "SELECT datetime(%Q) NOT NULL", zTarget) ){
blob_appendf(p->pOut, "<a href=\"%R/timeline?c=%T\">", zTarget);
}else if( (z = validWikiPageName(p, zTarget))!=0 ){
blob_appendf(p->pOut, "<a href=\"%R/wiki?name=%T\">", z);
}else if( zTarget>=&zOrig[2] && !fossil_isspace(zTarget[-2]) ){
/* Probably an array subscript in code */
zTerm = "";
}else if( (p->state & (WIKI_NOBADLINKS|WIKI_LINKSONLY))!=0 ){
zTerm = "";
}else{
blob_appendf(p->pOut, "<span class=\"brokenlink\">[%h]", zTarget);
zTerm = "</span>";
}
assert( strlen(zTerm)<nClose );
sqlite3_snprintf(nClose, zClose, "%s", zTerm);
}
/*
** Check to see if the given parsed markup is the correct
** </verbatim> tag.
*/
static int endVerbatim(Renderer *p, ParsedMarkup *pMarkup){
char *z;
assert( p->inVerbatim );
if( pMarkup->iCode!=MARKUP_VERBATIM ) return 0;
if( !pMarkup->endTag ) return 0;
if( p->zVerbatimId==0 ) return 1;
if( pMarkup->nAttr!=1 ) return 0;
z = pMarkup->aAttr[0].zValue;
return fossil_strcmp(z, p->zVerbatimId)==0;
}
/*
** Return the MUTYPE for the top of the stack.
*/
static int stackTopType(Renderer *p){
if( p->nStack<=0 ) return 0;
return aMarkup[p->aStack[p->nStack-1].iCode].iType;
}
/*
** Convert the wiki in z[] into html in the renderer p. The
** renderer has already been initialized.
**
** This routine will probably modify the content of z[].
*/
static void wiki_render(Renderer *p, char *z){
int tokenType;
ParsedMarkup markup;
int n;
int inlineOnly = (p->state & INLINE_MARKUP_ONLY)!=0;
int wikiHtmlOnly = (p->state & (WIKI_HTMLONLY | WIKI_LINKSONLY))!=0;
int linksOnly = (p->state & WIKI_LINKSONLY)!=0;
char *zOrig = z;
/* Make sure the attribute constants and names still align
** following changes in the attribute list. */
assert( fossil_strcmp(aAttribute[ATTR_WIDTH].zName, "width")==0 );
while( z[0] ){
if( wikiHtmlOnly ){
n = nextRawToken(z, p, &tokenType);
}else{
n = nextWikiToken(z, p, &tokenType);
}
p->state &= ~(AT_NEWLINE|AT_PARAGRAPH);
switch( tokenType ){
case TOKEN_PARAGRAPH: {
if( inlineOnly ){
/* blob_append(p->pOut, " ¶ ", -1); */
blob_append(p->pOut, " ", -1);
}else{
if( p->wikiList ){
popStackToTag(p, p->wikiList);
p->wikiList = 0;
}
endAutoParagraph(p);
blob_append(p->pOut, "\n\n", 1);
p->wantAutoParagraph = 1;
}
p->state |= AT_PARAGRAPH|AT_NEWLINE;
break;
}
case TOKEN_NEWLINE: {
blob_append(p->pOut, "\n", 1);
p->state |= AT_NEWLINE;
break;
}
case TOKEN_BUL_LI: {
if( inlineOnly ){
blob_append(p->pOut, " • ", -1);
}else{
if( p->wikiList!=MARKUP_UL ){
if( p->wikiList ){
popStackToTag(p, p->wikiList);
}
endAutoParagraph(p);
pushStack(p, MARKUP_UL);
blob_append(p->pOut, "<ul>", 4);
p->wikiList = MARKUP_UL;
}
popStackToTag(p, MARKUP_LI);
startAutoParagraph(p);
pushStack(p, MARKUP_LI);
blob_append(p->pOut, "<li>", 4);
}
break;
}
case TOKEN_NUM_LI: {
if( inlineOnly ){
blob_append(p->pOut, " # ", -1);
}else{
if( p->wikiList!=MARKUP_OL ){
if( p->wikiList ){
popStackToTag(p, p->wikiList);
}
endAutoParagraph(p);
pushStack(p, MARKUP_OL);
blob_append(p->pOut, "<ol>", 4);
p->wikiList = MARKUP_OL;
}
popStackToTag(p, MARKUP_LI);
startAutoParagraph(p);
pushStack(p, MARKUP_LI);
blob_append(p->pOut, "<li>", 4);
}
break;
}
case TOKEN_ENUM: {
if( inlineOnly ){
blob_appendf(p->pOut, " (%d) ", atoi(z));
}else{
if( p->wikiList!=MARKUP_OL ){
if( p->wikiList ){
popStackToTag(p, p->wikiList);
}
endAutoParagraph(p);
pushStack(p, MARKUP_OL);
blob_append(p->pOut, "<ol>", 4);
p->wikiList = MARKUP_OL;
}
popStackToTag(p, MARKUP_LI);
startAutoParagraph(p);
pushStack(p, MARKUP_LI);
blob_appendf(p->pOut, "<li value=\"%d\">", atoi(z));
}
break;
}
case TOKEN_INDENT: {
if( !inlineOnly ){
assert( p->wikiList==0 );
pushStack(p, MARKUP_BLOCKQUOTE);
blob_append(p->pOut, "<blockquote>", -1);
p->wantAutoParagraph = 0;
p->wikiList = MARKUP_BLOCKQUOTE;
}
break;
}
case TOKEN_CHARACTER: {
startAutoParagraph(p);
if( z[0]=='<' ){
blob_append(p->pOut, "<", 4);
}else if( z[0]=='&' ){
blob_append(p->pOut, "&", 5);
}
break;
}
case TOKEN_LINK: {
char *zTarget;
char *zDisplay = 0;
int i, j;
int savedState;
char zClose[20];
char cS1 = 0;
int iS1 = 0;
startAutoParagraph(p);
zTarget = &z[1];
for(i=1; z[i] && z[i]!=']'; i++){
if( z[i]=='|' && zDisplay==0 ){
zDisplay = &z[i+1];
for(j=i; j>0 && fossil_isspace(z[j-1]); j--){}
iS1 = j;
cS1 = z[j];
z[j] = 0;
}
}
z[i] = 0;
if( zDisplay==0 ){
zDisplay = zTarget;
}else{
while( fossil_isspace(*zDisplay) ) zDisplay++;
}
openHyperlink(p, zTarget, zClose, sizeof(zClose), zOrig);
if( linksOnly || zClose[0]==0 || p->inVerbatim ){
if( cS1 ) z[iS1] = cS1;
if( zClose[0]!=']' ){
blob_appendf(p->pOut, "[%h]%s", zTarget, zClose);
}else{
blob_appendf(p->pOut, "%h%s", zTarget, zClose);
}
}else{
savedState = p->state;
p->state &= ~ALLOW_WIKI;
p->state |= FONT_MARKUP_ONLY;
wiki_render(p, zDisplay);
p->state = savedState;
blob_append(p->pOut, zClose, -1);
}
break;
}
case TOKEN_TEXT: {
int i;
for(i=0; i<n && fossil_isspace(z[i]); i++){}
if( i<n ) startAutoParagraph(p);
blob_append(p->pOut, z, n);
break;
}
case TOKEN_RAW: {
if( linksOnly ){
htmlize_to_blob(p->pOut, z, n);
}else{
blob_append(p->pOut, z, n);
}
break;
}
case TOKEN_MARKUP: {
const char *zId;
int iDiv;
int mAttr = parseMarkup(&markup, z);
/* Convert <title> to <h1 align='center'> */
if( markup.iCode==MARKUP_TITLE && !p->inVerbatim ){
markup.iCode = MARKUP_H1;
markup.nAttr = 1;
markup.aAttr[0].iACode = AMSK_ALIGN;
markup.aAttr[0].zValue = "center";
markup.aAttr[0].cTerm = 0;
}
/* Markup of the form </div id=ID> where there is a matching
** ID somewhere on the stack. Exit any contained verbatim.
** Pop the stack up to the matching <div>. Discard the </div>
*/
if( markup.iCode==MARKUP_DIV && markup.endTag &&
(zId = markupId(&markup))!=0 &&
(iDiv = findTagWithId(p, MARKUP_DIV, zId))>=0
){
if( p->inVerbatim ){
p->inVerbatim = 0;
p->state = p->preVerbState;
blob_append(p->pOut, "</pre>", 6);
}
while( p->nStack>iDiv+1 ) popStack(p);
if( p->aStack[iDiv].allowWiki ){
p->state |= ALLOW_WIKI;
}else{
p->state &= ~ALLOW_WIKI;
}
assert( p->nStack==iDiv+1 );
p->nStack--;
}else
/* If within <verbatim id=ID> ignore everything other than
** </verbatim id=ID> and the </dev id=ID2> above.
*/
if( p->inVerbatim ){
if( endVerbatim(p, &markup) ){
p->inVerbatim = 0;
p->state = p->preVerbState;
blob_append(p->pOut, "</pre>", 6);
}else{
unparseMarkup(&markup);
blob_append(p->pOut, "<", 4);
n = 1;
}
}else
/* Render invalid markup literally. The markup appears in the
** final output as plain text.
*/
if( markup.iCode==MARKUP_INVALID ){
unparseMarkup(&markup);
startAutoParagraph(p);
blob_append(p->pOut, "<", 4);
n = 1;
}else
/* If the markup is not font-change markup ignore it if the
** font-change-only flag is set.
*/
if( (markup.iType&MUTYPE_FONT)==0 && (p->state & FONT_MARKUP_ONLY)!=0 ){
/* Do nothing */
}else
if( markup.iCode==MARKUP_NOWIKI ){
if( markup.endTag ){
p->state |= ALLOW_WIKI;
}else{
p->state &= ~ALLOW_WIKI;
}
}else
/* Ignore block markup for in-line rendering.
*/
if( inlineOnly && (markup.iType&MUTYPE_INLINE)==0 ){
/* Do nothing */
}else
/* Generate end-tags */
if( markup.endTag ){
popStackToTag(p, markup.iCode);
}else
/* Push <div> markup onto the stack together with the id=ID attribute.
*/
if( markup.iCode==MARKUP_DIV && (mAttr & ATTR_ID)!=0 ){
pushStackWithId(p, markup.iCode, markupId(&markup),
(p->state & ALLOW_WIKI)!=0);
}else
/* Enter <verbatim> processing. With verbatim enabled, all other
** markup other than the corresponding end-tag with the same ID is
** ignored.
*/
if( markup.iCode==MARKUP_VERBATIM ){
int ii, vAttrDidAppend=0;
p->zVerbatimId = 0;
p->inVerbatim = 1;
p->preVerbState = p->state;
p->state &= ~ALLOW_WIKI;
for(ii=0; ii<markup.nAttr; ii++){
if( markup.aAttr[ii].iACode == ATTR_ID ){
p->zVerbatimId = markup.aAttr[ii].zValue;
}else if( markup.aAttr[ii].iACode==ATTR_TYPE ){
blob_appendf(p->pOut, "<pre name='code' class='%s'>",
markup.aAttr[ii].zValue);
vAttrDidAppend=1;
}else if( markup.aAttr[ii].iACode==ATTR_LINKS
&& !is_false(markup.aAttr[ii].zValue) ){
p->state |= ALLOW_LINKS;
}
}
if( !vAttrDidAppend ) {
endAutoParagraph(p);
blob_append(p->pOut, "<pre class='verbatim'>",-1);
}
p->wantAutoParagraph = 0;
}else
if( markup.iType==MUTYPE_LI ){
if( backupToType(p, MUTYPE_LIST)==0 ){
endAutoParagraph(p);
pushStack(p, MARKUP_UL);
blob_append(p->pOut, "<ul>", 4);
}
pushStack(p, MARKUP_LI);
renderMarkup(p->pOut, &markup);
}else
if( markup.iType==MUTYPE_TR ){
if( backupToType(p, MUTYPE_TABLE) ){
pushStack(p, MARKUP_TR);
renderMarkup(p->pOut, &markup);
}
}else
if( markup.iType==MUTYPE_TD ){
if( backupToType(p, MUTYPE_TABLE|MUTYPE_TR) ){
if( stackTopType(p)==MUTYPE_TABLE ){
pushStack(p, MARKUP_TR);
blob_append(p->pOut, "<tr>", 4);
}
pushStack(p, markup.iCode);
renderMarkup(p->pOut, &markup);
}
}else
if( markup.iType==MUTYPE_HYPERLINK ){
if( !isButtonHyperlink(p, &markup, z, &n) ){
popStackToTag(p, markup.iCode);
startAutoParagraph(p);
renderMarkup(p->pOut, &markup);
pushStack(p, markup.iCode);
}
}else
{
if( markup.iType==MUTYPE_FONT ){
startAutoParagraph(p);
}else if( markup.iType==MUTYPE_BLOCK || markup.iType==MUTYPE_LIST ){
p->wantAutoParagraph = 0;
}
if( markup.iCode==MARKUP_HR
|| markup.iCode==MARKUP_H1
|| markup.iCode==MARKUP_H2
|| markup.iCode==MARKUP_H3
|| markup.iCode==MARKUP_H4
|| markup.iCode==MARKUP_H5
|| markup.iCode==MARKUP_P
){
endAutoParagraph(p);
}
if( (markup.iType & MUTYPE_STACK )!=0 ){
pushStack(p, markup.iCode);
}
renderMarkup(p->pOut, &markup);
}
break;
}
}
z += n;
}
}
/*
** Transform the text in the pIn blob. Write the results
** into the pOut blob. The pOut blob should already be
** initialized. The output is merely appended to pOut.
** If pOut is NULL, then the output is appended to the CGI
** reply.
*/
void wiki_convert(Blob *pIn, Blob *pOut, int flags){
Renderer renderer;
memset(&renderer, 0, sizeof(renderer));
renderer.renderFlags = flags;
renderer.state = ALLOW_WIKI|AT_NEWLINE|AT_PARAGRAPH|flags;
if( flags & WIKI_NOBLOCK ){
renderer.state |= INLINE_MARKUP_ONLY;
}
if( flags & WIKI_INLINE ){
renderer.wantAutoParagraph = 0;
}else{
renderer.wantAutoParagraph = 1;
}
if( wikiUsesHtml() ){
renderer.state |= WIKI_HTMLONLY;
}
if( pOut ){
renderer.pOut = pOut;
}else{
renderer.pOut = cgi_output_blob();
}
blob_to_utf8_no_bom(pIn, 0);
wiki_render(&renderer, blob_str(pIn));
endAutoParagraph(&renderer);
while( renderer.nStack ){
popStack(&renderer);
}
blob_append(renderer.pOut, "\n", 1);
free(renderer.aStack);
}
/*
** Send a string as wiki to CGI output.
*/
void wiki_write(const char *zIn, int flags){
Blob in;
blob_init(&in, zIn, -1);
wiki_convert(&in, 0, flags);
blob_reset(&in);
}
/*
** COMMAND: test-wiki-render
**
** Usage: %fossil test-wiki-render FILE [OPTIONS]
**
** Options:
** --buttons Set the WIKI_BUTTONS flag
** --htmlonly Set the WIKI_HTMLONLY flag
** --linksonly Set the WIKI_LINKSONLY flag
** --nobadlinks Set the WIKI_NOBADLINKS flag
** --inline Set the WIKI_INLINE flag
** --noblock Set the WIKI_NOBLOCK flag
*/
void test_wiki_render(void){
Blob in, out;
int flags = 0;
if( find_option("buttons",0,0)!=0 ) flags |= WIKI_BUTTONS;
if( find_option("htmlonly",0,0)!=0 ) flags |= WIKI_HTMLONLY;
if( find_option("linksonly",0,0)!=0 ) flags |= WIKI_LINKSONLY;
if( find_option("nobadlinks",0,0)!=0 ) flags |= WIKI_NOBADLINKS;
if( find_option("inline",0,0)!=0 ) flags |= WIKI_INLINE;
if( find_option("noblock",0,0)!=0 ) flags |= WIKI_NOBLOCK;
verify_all_options();
if( g.argc!=3 ) usage("FILE");
blob_zero(&out);
blob_read_from_file(&in, g.argv[2], ExtFILE);
wiki_convert(&in, &out, flags);
blob_write_to_file(&out, "-");
}
/*
** Search for a <title>...</title> at the beginning of a wiki page.
** Return true (nonzero) if a title is found. Return zero if there is
** not title.
**
** If a title is found, initialize the pTitle blob to be the content
** of the title and initialize pTail to be the text that follows the
** title.
*/
int wiki_find_title(Blob *pIn, Blob *pTitle, Blob *pTail){
char *z;
int i;
int iStart;
blob_to_utf8_no_bom(pIn, 0);
z = blob_str(pIn);
for(i=0; fossil_isspace(z[i]); i++){}
if( z[i]!='<' ) return 0;
i++;
if( strncmp(&z[i],"title>", 6)!=0 ) return 0;
for(iStart=i+6; fossil_isspace(z[iStart]); iStart++){}
for(i=iStart; z[i] && (z[i]!='<' || strncmp(&z[i],"</title>",8)!=0); i++){}
if( strncmp(&z[i],"</title>",8)!=0 ){
blob_init(pTitle, 0, 0);
blob_init(pTail, &z[iStart], -1);
return 1;
}
if( i-iStart>0 ){
blob_init(pTitle, &z[iStart], i-iStart);
}else{
blob_init(pTitle, 0, 0);
}
blob_init(pTail, &z[i+8], -1);
return 1;
}
/*
** Parse text looking for wiki hyperlinks in one of the formats:
**
** [target]
** [target|...]
**
** Where "target" can be either an artifact ID prefix or a wiki page
** name. For each such hyperlink found, add an entry to the
** backlink table.
*/
void wiki_extract_links(
char *z, /* The wiki text from which to extract links */
int srcid, /* srcid field for new BACKLINK table entries */
int srctype, /* srctype field for new BACKLINK table entries */
double mtime, /* mtime field for new BACKLINK table entries */
int replaceFlag, /* True first delete prior BACKLINK entries */
int flags /* wiki parsing flags */
){
Renderer renderer;
int tokenType;
ParsedMarkup markup;
int n;
int inlineOnly;
int wikiHtmlOnly = 0;
memset(&renderer, 0, sizeof(renderer));
renderer.state = ALLOW_WIKI|AT_NEWLINE|AT_PARAGRAPH;
if( flags & WIKI_NOBLOCK ){
renderer.state |= INLINE_MARKUP_ONLY;
}
if( wikiUsesHtml() ){
renderer.state |= WIKI_HTMLONLY;
wikiHtmlOnly = 1;
}
inlineOnly = (renderer.state & INLINE_MARKUP_ONLY)!=0;
if( replaceFlag ){
db_multi_exec("DELETE FROM backlink WHERE srctype=%d AND srcid=%d",
srctype, srcid);
}
while( z[0] ){
if( wikiHtmlOnly ){
n = nextRawToken(z, &renderer, &tokenType);
}else{
n = nextWikiToken(z, &renderer, &tokenType);
}
switch( tokenType ){
case TOKEN_LINK: {
char *zTarget;
int i, c;
char zLink[HNAME_MAX+4];
zTarget = &z[1];
for(i=0; zTarget[i] && zTarget[i]!='|' && zTarget[i]!=']'; i++){}
while(i>1 && zTarget[i-1]==' '){ i--; }
c = zTarget[i];
zTarget[i] = 0;
if( is_valid_hname(zTarget) ){
memcpy(zLink, zTarget, i+1);
canonical16(zLink, i);
db_multi_exec(
"REPLACE INTO backlink(target,srctype,srcid,mtime)"
"VALUES(%Q,%d,%d,%g)", zLink, srctype, srcid, mtime
);
}
zTarget[i] = c;
break;
}
case TOKEN_MARKUP: {
const char *zId;
int iDiv;
parseMarkup(&markup, z);
/* Markup of the form </div id=ID> where there is a matching
** ID somewhere on the stack. Exit the verbatim if were are in
** it. Pop the stack up to the matching <div>. Discard the
** </div>
*/
if( markup.iCode==MARKUP_DIV && markup.endTag &&
(zId = markupId(&markup))!=0 &&
(iDiv = findTagWithId(&renderer, MARKUP_DIV, zId))>=0
){
if( renderer.inVerbatim ){
renderer.inVerbatim = 0;
renderer.state = renderer.preVerbState;
}
while( renderer.nStack>iDiv+1 ) popStack(&renderer);
if( renderer.aStack[iDiv].allowWiki ){
renderer.state |= ALLOW_WIKI;
}else{
renderer.state &= ~ALLOW_WIKI;
}
renderer.nStack--;
}else
/* If within <verbatim id=ID> ignore everything other than
** </verbatim id=ID> and the </dev id=ID2> above.
*/
if( renderer.inVerbatim ){
if( endVerbatim(&renderer, &markup) ){
renderer.inVerbatim = 0;
renderer.state = renderer.preVerbState;
}else{
n = 1;
}
}else
/* Render invalid markup literally. The markup appears in the
** final output as plain text.
*/
if( markup.iCode==MARKUP_INVALID ){
n = 1;
}else
/* If the markup is not font-change markup ignore it if the
** font-change-only flag is set.
*/
if( (markup.iType&MUTYPE_FONT)==0 &&
(renderer.state & FONT_MARKUP_ONLY)!=0 ){
/* Do nothing */
}else
if( markup.iCode==MARKUP_NOWIKI ){
if( markup.endTag ){
renderer.state |= ALLOW_WIKI;
}else{
renderer.state &= ~ALLOW_WIKI;
}
}else
/* Ignore block markup for in-line rendering.
*/
if( inlineOnly && (markup.iType&MUTYPE_INLINE)==0 ){
/* Do nothing */
}else
/* Generate end-tags */
if( markup.endTag ){
popStackToTag(&renderer, markup.iCode);
}else
/* Push <div> markup onto the stack together with the id=ID attribute.
*/
if( markup.iCode==MARKUP_DIV ){
pushStackWithId(&renderer, markup.iCode, markupId(&markup),
(renderer.state & ALLOW_WIKI)!=0);
}else
/* Enter <verbatim> processing. With verbatim enabled, all other
** markup other than the corresponding end-tag with the same ID is
** ignored.
*/
if( markup.iCode==MARKUP_VERBATIM ){
int vAttrIdx;
renderer.zVerbatimId = 0;
renderer.inVerbatim = 1;
renderer.preVerbState = renderer.state;
renderer.state &= ~ALLOW_WIKI;
for (vAttrIdx = 0; vAttrIdx < markup.nAttr; vAttrIdx++){
if( markup.aAttr[vAttrIdx].iACode == ATTR_ID ){
renderer.zVerbatimId = markup.aAttr[0].zValue;
}
}
renderer.wantAutoParagraph = 0;
}
/* Restore the input text to its original configuration
*/
unparseMarkup(&markup);
break;
}
default: {
break;
}
}
z += n;
}
free(renderer.aStack);
}
/*
** Get the next HTML token.
**
** z points to the start of a token. Return the number of
** characters in that token.
*/
static int nextHtmlToken(const char *z){
int n;
char c;
if( (c=z[0])=='<' ){
n = htmlTagLength(z);
if( n<=0 ) n = 1;
}else if( fossil_isspace(c) ){
for(n=1; z[n] && fossil_isspace(z[n]); n++){}
}else if( c=='&' ){
n = z[1]=='#' ? 2 : 1;
while( fossil_isalnum(z[n]) ) n++;
if( z[n]==';' ) n++;
}else{
n = 1;
for(n=1; 1; n++){
if( (c = z[n]) > '<' ) continue;
if( c=='<' || c=='&' || fossil_isspace(c) || c==0 ) break;
}
}
return n;
}
/*
** Attempt to reformat messy HTML to be easily readable by humans.
**
** * Try to keep lines less than 80 characters in length
** * Collapse white space into a single space
** * Put a blank line before:
** <blockquote><center><code><hN><p><pre><table>
** * Put a newline after <br> and <hr>
** * Start each of the following elements on a new line:
** <address><cite><dd><div><dl><dt><li><ol><samp>
** <tbody><td><tfoot><th><thead><tr><ul>
**
** Except, do not do any reformatting inside of <pre>...</pre>
*/
void htmlTidy(const char *zIn, Blob *pOut){
int n;
int nPre = 0;
int iCur = 0;
int wantSpace = 0;
int omitSpace = 1;
while( zIn[0] ){
n = nextHtmlToken(zIn);
if( zIn[0]=='<' && n>1 ){
int i, j;
int isCloseTag;
int eTag;
int eType;
char zTag[32];
isCloseTag = zIn[1]=='/';
for(i=0, j=1+isCloseTag; i<30 && fossil_isalnum(zIn[j]); i++, j++){
zTag[i] = fossil_tolower(zIn[j]);
}
zTag[i] = 0;
eTag = findTag(zTag);
eType = aMarkup[eTag].iType;
if( eTag==MARKUP_PRE ){
if( isCloseTag ){
nPre--;
blob_append(pOut, zIn, n);
zIn += n;
if( nPre==0 ){ blob_append(pOut, "\n", 1); iCur = 0; }
continue;
}else{
if( iCur && nPre==0 ){ blob_append(pOut, "\n", 1); iCur = 0; }
nPre++;
}
}else if( eType & (MUTYPE_BLOCK|MUTYPE_TABLE) ){
if( !isCloseTag && nPre==0 && blob_size(pOut)>0 ){
blob_append(pOut, "\n\n", 1 + (iCur>0));
iCur = 0;
}
wantSpace = 0;
omitSpace = 1;
}else if( (eType & (MUTYPE_LIST|MUTYPE_LI|MUTYPE_TR|MUTYPE_TD))!=0
|| eTag==MARKUP_HR
){
if( nPre==0 && (!isCloseTag || (eType&MUTYPE_LIST)!=0) && iCur>0 ){
blob_append(pOut, "\n", 1);
iCur = 0;
}
wantSpace = 0;
omitSpace = 1;
}
if( wantSpace && nPre==0 ){
if( iCur+n+1>=80 ){
blob_append(pOut, "\n", 1);
iCur = 0;
}else{
blob_append(pOut, " ", 1);
iCur++;
}
}
blob_append(pOut, zIn, n);
iCur += n;
wantSpace = 0;
if( eTag==MARKUP_BR || eTag==MARKUP_HR ){
blob_append(pOut, "\n", 1);
iCur = 0;
}
}else if( fossil_isspace(zIn[0]) ){
if( nPre ){
blob_append(pOut, zIn, n);
}else{
wantSpace = !omitSpace;
}
}else{
if( wantSpace && nPre==0 ){
if( iCur+n+1>=80 ){
blob_append(pOut, "\n", 1);
iCur = 0;
}else{
blob_append(pOut, " ", 1);
iCur++;
}
}
blob_append(pOut, zIn, n);
iCur += n;
wantSpace = omitSpace = 0;
}
zIn += n;
}
if( iCur ) blob_append(pOut, "\n", 1);
}
/*
** COMMAND: test-html-tidy
**
** Run the htmlTidy() routine on the content of all files named on
** the command-line and write the results to standard output.
*/
void test_html_tidy(void){
Blob in, out;
int i;
for(i=2; i<g.argc; i++){
blob_read_from_file(&in, g.argv[i], ExtFILE);
blob_zero(&out);
htmlTidy(blob_str(&in), &out);
blob_reset(&in);
fossil_puts(blob_str(&out), 0);
blob_reset(&out);
}
}
/*
** Remove all HTML markup from the input text. The output written into
** pOut is pure text.
**
** Put the title on the first line, if there is any <title> markup.
** If there is no <title>, then create a blank first line.
*/
void html_to_plaintext(const char *zIn, Blob *pOut){
int n;
int i, j;
int inTitle = 0; /* True between <title>...</title> */
int seenText = 0; /* True after first non-whitespace seen */
int nNL = 0; /* Number of \n characters at the end of pOut */
int nWS = 0; /* True if pOut ends with whitespace */
while( fossil_isspace(zIn[0]) ) zIn++;
while( zIn[0] ){
n = nextHtmlToken(zIn);
if( zIn[0]=='<' && n>1 ){
int isCloseTag;
int eTag;
int eType;
char zTag[32];
isCloseTag = zIn[1]=='/';
for(i=0, j=1+isCloseTag; i<30 && fossil_isalnum(zIn[j]); i++, j++){
zTag[i] = fossil_tolower(zIn[j]);
}
zTag[i] = 0;
eTag = findTag(zTag);
eType = aMarkup[eTag].iType;
if( eTag==MARKUP_INVALID && fossil_strnicmp(zIn,"<style",6)==0 ){
zIn += n;
while( zIn[0] ){
n = nextHtmlToken(zIn);
if( fossil_strnicmp(zIn, "</style",7)==0 ) break;
zIn += n;
}
if( zIn[0]=='<' ) zIn += n;
continue;
}
if( eTag==MARKUP_TITLE ){
inTitle = !isCloseTag;
}
if( !isCloseTag && seenText && (eType & (MUTYPE_BLOCK|MUTYPE_TABLE))!=0 ){
if( nNL==0 ){
blob_append(pOut, "\n", 1);
nNL++;
}
nWS = 1;
}
}else if( fossil_isspace(zIn[0]) ){
if( seenText ){
nNL = 0;
if( !inTitle ){ /* '\n' -> ' ' within <title> */
for(i=0; i<n; i++) if( zIn[i]=='\n' ) nNL++;
}
if( !nWS ){
blob_append(pOut, nNL ? "\n" : " ", 1);
nWS = 1;
}
}
}else if( zIn[0]=='&' ){
char c = '?';
if( zIn[1]=='#' ){
int x = atoi(&zIn[1]);
if( x>0 && x<=127 ) c = x;
}else{
static const struct { int n; char c; char *z; } aEntity[] = {
{ 5, '&', "&" },
{ 4, '<', "<" },
{ 4, '>', ">" },
{ 6, ' ', " " },
};
int jj;
for(jj=0; jj<count(aEntity); jj++){
if( aEntity[jj].n==n && strncmp(aEntity[jj].z,zIn,n)==0 ){
c = aEntity[jj].c;
break;
}
}
}
if( fossil_isspace(c) ){
if( nWS==0 && seenText ) blob_append(pOut, &c, 1);
nWS = 1;
nNL = c=='\n';
}else{
if( !seenText && !inTitle ) blob_append(pOut, "\n", 1);
seenText = 1;
nNL = nWS = 0;
blob_append(pOut, &c, 1);
}
}else{
if( !seenText && !inTitle ) blob_append(pOut, "\n", 1);
seenText = 1;
nNL = nWS = 0;
blob_append(pOut, zIn, n);
}
zIn += n;
}
if( nNL==0 ) blob_append(pOut, "\n", 1);
}
/*
** COMMAND: test-html-to-text
**
** Usage: %fossil test-html-to-text FILE ...
**
** Read all files named on the command-line. Convert the file
** content from HTML to text and write the results on standard
** output.
**
** This command is intended as a test and debug interface for
** the html_to_plaintext() routine.
*/
void test_html_to_text(void){
Blob in, out;
int i;
for(i=2; i<g.argc; i++){
blob_read_from_file(&in, g.argv[i], ExtFILE);
blob_zero(&out);
html_to_plaintext(blob_str(&in), &out);
blob_reset(&in);
fossil_puts(blob_str(&out), 0);
blob_reset(&out);
}
}