forked from desandro/windex
/
textile.php
1213 lines (1001 loc) · 33.2 KB
/
textile.php
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<?php
/**
* Example: get XHTML from a given Textile-markup string ($string)
*
* $textile = new Textile;
* echo $textile->TextileThis($string);
*
*/
/*
$HeadURL: https://textpattern.googlecode.com/svn/releases/4.2.0/source/textpattern/lib/classTextile.php $
$LastChangedRevision: 2812 $
*/
/*
_____________
T E X T I L E
A Humane Web Text Generator
Version 2.0
Copyright (c) 2003-2004, Dean Allen <dean@textism.com>
All rights reserved.
Thanks to Carlo Zottmann <carlo@g-blog.net> for refactoring
Textile's procedural code into a class framework
Additions and fixes Copyright (c) 2006 Alex Shiels http://thresholdstate.com/
_____________
L I C E N S E
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name Textile nor the names of its contributors may be used to
endorse or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
_________
U S A G E
Block modifier syntax:
Header: h(1-6).
Paragraphs beginning with 'hn. ' (where n is 1-6) are wrapped in header tags.
Example: h1. Header... -> <h1>Header...</h1>
Paragraph: p. (also applied by default)
Example: p. Text -> <p>Text</p>
Blockquote: bq.
Example: bq. Block quotation... -> <blockquote>Block quotation...</blockquote>
Blockquote with citation: bq.:http://citation.url
Example: bq.:http://textism.com/ Text...
-> <blockquote cite="http://textism.com">Text...</blockquote>
Footnote: fn(1-100).
Example: fn1. Footnote... -> <p id="fn1">Footnote...</p>
Numeric list: #, ##
Consecutive paragraphs beginning with # are wrapped in ordered list tags.
Example: <ol><li>ordered list</li></ol>
Bulleted list: *, **
Consecutive paragraphs beginning with * are wrapped in unordered list tags.
Example: <ul><li>unordered list</li></ul>
Phrase modifier syntax:
_emphasis_ -> <em>emphasis</em>
__italic__ -> <i>italic</i>
*strong* -> <strong>strong</strong>
**bold** -> <b>bold</b>
??citation?? -> <cite>citation</cite>
-deleted text- -> <del>deleted</del>
+inserted text+ -> <ins>inserted</ins>
^superscript^ -> <sup>superscript</sup>
~subscript~ -> <sub>subscript</sub>
@code@ -> <code>computer code</code>
%(bob)span% -> <span class="bob">span</span>
==notextile== -> leave text alone (do not format)
"linktext":url -> <a href="url">linktext</a>
"linktext(title)":url -> <a href="url" title="title">linktext</a>
!imageurl! -> <img src="imageurl" />
!imageurl(alt text)! -> <img src="imageurl" alt="alt text" />
!imageurl!:linkurl -> <a href="linkurl"><img src="imageurl" /></a>
ABC(Always Be Closing) -> <acronym title="Always Be Closing">ABC</acronym>
Table syntax:
Simple tables:
|a|simple|table|row|
|And|Another|table|row|
|_. A|_. table|_. header|_.row|
|A|simple|table|row|
Tables with attributes:
table{border:1px solid black}.
{background:#ddd;color:red}. |{}| | | |
Applying Attributes:
Most anywhere Textile code is used, attributes such as arbitrary css style,
css classes, and ids can be applied. The syntax is fairly consistent.
The following characters quickly alter the alignment of block elements:
< -> left align ex. p<. left-aligned para
> -> right align h3>. right-aligned header 3
= -> centred h4=. centred header 4
<> -> justified p<>. justified paragraph
These will change vertical alignment in table cells:
^ -> top ex. |^. top-aligned table cell|
- -> middle |-. middle aligned|
~ -> bottom |~. bottom aligned cell|
Plain (parentheses) inserted between block syntax and the closing dot-space
indicate classes and ids:
p(hector). paragraph -> <p class="hector">paragraph</p>
p(#fluid). paragraph -> <p id="fluid">paragraph</p>
(classes and ids can be combined)
p(hector#fluid). paragraph -> <p class="hector" id="fluid">paragraph</p>
Curly {brackets} insert arbitrary css style
p{line-height:18px}. paragraph -> <p style="line-height:18px">paragraph</p>
h3{color:red}. header 3 -> <h3 style="color:red">header 3</h3>
Square [brackets] insert language attributes
p[no]. paragraph -> <p lang="no">paragraph</p>
%[fr]phrase% -> <span lang="fr">phrase</span>
Usually Textile block element syntax requires a dot and space before the block
begins, but since lists don't, they can be styled just using braces
#{color:blue} one -> <ol style="color:blue">
# big <li>one</li>
# list <li>big</li>
<li>list</li>
</ol>
Using the span tag to style a phrase
It goes like this, %{color:red}the fourth the fifth%
-> It goes like this, <span style="color:red">the fourth the fifth</span>
*/
// define these before including this file to override the standard glyphs
@define('txt_quote_single_open', '‘');
@define('txt_quote_single_close', '’');
@define('txt_quote_double_open', '“');
@define('txt_quote_double_close', '”');
@define('txt_apostrophe', '’');
@define('txt_prime', '′');
@define('txt_prime_double', '″');
@define('txt_ellipsis', '…');
@define('txt_emdash', '—');
@define('txt_endash', '–');
@define('txt_dimension', '×');
@define('txt_trademark', '™');
@define('txt_registered', '®');
@define('txt_copyright', '©');
class Textile
{
var $hlgn;
var $vlgn;
var $clas;
var $lnge;
var $styl;
var $cspn;
var $rspn;
var $a;
var $s;
var $c;
var $pnct;
var $rel;
var $fn;
var $shelf = array();
var $restricted = false;
var $noimage = false;
var $lite = false;
var $url_schemes = array();
var $glyph = array();
var $hu = '';
var $ver = '2.0.0';
var $rev = '$Rev: 2812 $';
var $doc_root;
// -------------------------------------------------------------
function Textile()
{
$this->hlgn = "(?:\<(?!>)|(?<!<)\>|\<\>|\=|[()]+(?! ))";
$this->vlgn = "[\-^~]";
$this->clas = "(?:\([^)]+\))";
$this->lnge = "(?:\[[^]]+\])";
$this->styl = "(?:\{[^}]+\})";
$this->cspn = "(?:\\\\\d+)";
$this->rspn = "(?:\/\d+)";
$this->a = "(?:{$this->hlgn}|{$this->vlgn})*";
$this->s = "(?:{$this->cspn}|{$this->rspn})*";
$this->c = "(?:{$this->clas}|{$this->styl}|{$this->lnge}|{$this->hlgn})*";
$this->pnct = '[\!"#\$%&\'()\*\+,\-\./:;<=>\?@\[\\\]\^_`{\|}\~]';
$this->urlch = '[\w"$\-_.+!*\'(),";\/?:@=&%#{}|\\^~\[\]`]';
$this->url_schemes = array('http','https','ftp','mailto');
$this->btag = array('bq', 'bc', 'notextile', 'pre', 'h[1-6]', 'fn\d+', 'p');
$this->glyph = array(
'quote_single_open' => txt_quote_single_open,
'quote_single_close' => txt_quote_single_close,
'quote_double_open' => txt_quote_double_open,
'quote_double_close' => txt_quote_double_close,
'apostrophe' => txt_apostrophe,
'prime' => txt_prime,
'prime_double' => txt_prime_double,
'ellipsis' => txt_ellipsis,
'emdash' => txt_emdash,
'endash' => txt_endash,
'dimension' => txt_dimension,
'trademark' => txt_trademark,
'registered' => txt_registered,
'copyright' => txt_copyright,
);
if (defined('hu'))
$this->hu = hu;
if (defined('DIRECTORY_SEPARATOR'))
$this->ds = constant('DIRECTORY_SEPARATOR');
else
$this->ds = '/';
$this->doc_root = @$_SERVER['DOCUMENT_ROOT'];
if (!$this->doc_root)
$this->doc_root = @$_SERVER['PATH_TRANSLATED']; // IIS
$this->doc_root = rtrim($this->doc_root, $this->ds).$this->ds;
}
// -------------------------------------------------------------
function TextileThis($text, $lite = '', $encode = '', $noimage = '', $strict = '', $rel = '')
{
$this->rel = ($rel) ? ' rel="'.$rel.'"' : '';
$this->lite = $lite;
$this->noimage = $noimage;
if ($encode) {
$text = $this->incomingEntities($text);
$text = str_replace("x%x%", "&", $text);
return $text;
} else {
if(!$strict) {
$text = $this->cleanWhiteSpace($text);
}
if (!$lite) {
$text = $this->block($text);
}
$text = $this->retrieve($text);
$text = $this->retrieveURLs($text);
// just to be tidy
$text = str_replace("<br />", "<br />\n", $text);
return $text;
}
}
// -------------------------------------------------------------
function TextileRestricted($text, $lite = 1, $noimage = 1, $rel = 'nofollow')
{
$this->restricted = true;
$this->lite = $lite;
$this->noimage = $noimage;
$this->rel = ($rel) ? ' rel="'.$rel.'"' : '';
// escape any raw html
$text = $this->encode_html($text, 0);
$text = $this->cleanWhiteSpace($text);
if ($lite) {
$text = $this->blockLite($text);
}
else {
$text = $this->block($text);
}
$text = $this->retrieve($text);
$text = $this->retrieveURLs($text);
// just to be tidy
$text = str_replace("<br />", "<br />\n", $text);
return $text;
}
// -------------------------------------------------------------
function pba($in, $element = "", $include_id = 1) // "parse block attributes"
{
$style = '';
$class = '';
$lang = '';
$colspan = '';
$rowspan = '';
$id = '';
$atts = '';
if (!empty($in)) {
$matched = $in;
if ($element == 'td') {
if (preg_match("/\\\\(\d+)/", $matched, $csp)) $colspan = $csp[1];
if (preg_match("/\/(\d+)/", $matched, $rsp)) $rowspan = $rsp[1];
}
if ($element == 'td' or $element == 'tr') {
if (preg_match("/($this->vlgn)/", $matched, $vert))
$style[] = "vertical-align:" . $this->vAlign($vert[1]) . ";";
}
if (preg_match("/\{([^}]*)\}/", $matched, $sty)) {
$style[] = rtrim($sty[1], ';') . ';';
$matched = str_replace($sty[0], '', $matched);
}
if (preg_match("/\[([^]]+)\]/U", $matched, $lng)) {
$lang = $lng[1];
$matched = str_replace($lng[0], '', $matched);
}
if (preg_match("/\(([^()]+)\)/U", $matched, $cls)) {
$class = $cls[1];
$matched = str_replace($cls[0], '', $matched);
}
if (preg_match("/([(]+)/", $matched, $pl)) {
$style[] = "padding-left:" . strlen($pl[1]) . "em;";
$matched = str_replace($pl[0], '', $matched);
}
if (preg_match("/([)]+)/", $matched, $pr)) {
// $this->dump($pr);
$style[] = "padding-right:" . strlen($pr[1]) . "em;";
$matched = str_replace($pr[0], '', $matched);
}
if (preg_match("/($this->hlgn)/", $matched, $horiz))
$style[] = "text-align:" . $this->hAlign($horiz[1]) . ";";
if (preg_match("/^(.*)#(.*)$/", $class, $ids)) {
$id = $ids[2];
$class = $ids[1];
}
if ($this->restricted)
return ($lang) ? ' lang="' . $lang .'"':'';
return join('',array(
($style) ? ' style="' . join("", $style) .'"':'',
($class) ? ' class="' . $class .'"':'',
($lang) ? ' lang="' . $lang .'"':'',
($id and $include_id) ? ' id="' . $id .'"':'',
($colspan) ? ' colspan="' . $colspan .'"':'',
($rowspan) ? ' rowspan="' . $rowspan .'"':''
));
}
return '';
}
// -------------------------------------------------------------
function hasRawText($text)
{
// checks whether the text has text not already enclosed by a block tag
$r = trim(preg_replace('@<(p|blockquote|div|form|table|ul|ol|pre|h\d)[^>]*?>.*</\1>@s', '', trim($text)));
$r = trim(preg_replace('@<(hr|br)[^>]*?/>@', '', $r));
return '' != $r;
}
// -------------------------------------------------------------
function table($text)
{
$text = $text . "\n\n";
return preg_replace_callback("/^(?:table(_?{$this->s}{$this->a}{$this->c})\. ?\n)?^({$this->a}{$this->c}\.? ?\|.*\|)\n\n/smU",
array(&$this, "fTable"), $text);
}
// -------------------------------------------------------------
function fTable($matches)
{
$tatts = $this->pba($matches[1], 'table');
foreach(preg_split("/\|$/m", $matches[2], -1, PREG_SPLIT_NO_EMPTY) as $row) {
if (preg_match("/^($this->a$this->c\. )(.*)/m", ltrim($row), $rmtch)) {
$ratts = $this->pba($rmtch[1], 'tr');
$row = $rmtch[2];
} else $ratts = '';
$cells = array();
foreach(explode("|", $row) as $cell) {
$ctyp = "d";
if (preg_match("/^_/", $cell)) $ctyp = "h";
if (preg_match("/^(_?$this->s$this->a$this->c\. )(.*)/", $cell, $cmtch)) {
$catts = $this->pba($cmtch[1], 'td');
$cell = $cmtch[2];
} else $catts = '';
$cell = $this->graf($cell);
if (trim($cell) != '')
$cells[] = $this->doTagBr("t$ctyp", "\t\t\t<t$ctyp$catts>$cell</t$ctyp>");
}
$rows[] = "\t\t<tr$ratts>\n" . join("\n", $cells) . ($cells ? "\n" : "") . "\t\t</tr>";
unset($cells, $catts);
}
return "\t<table$tatts>\n" . join("\n", $rows) . "\n\t</table>\n\n";
}
// -------------------------------------------------------------
function lists($text)
{
return preg_replace_callback("/^([#*]+$this->c .*)$(?![^#*])/smU", array(&$this, "fList"), $text);
}
// -------------------------------------------------------------
function fList($m)
{
$text = preg_split('/\n(?=[*#])/m', $m[0]);
foreach($text as $nr => $line) {
$nextline = isset($text[$nr+1]) ? $text[$nr+1] : false;
if (preg_match("/^([#*]+)($this->a$this->c) (.*)$/s", $line, $m)) {
list(, $tl, $atts, $content) = $m;
$nl = '';
if (preg_match("/^([#*]+)\s.*/", $nextline, $nm))
$nl = $nm[1];
if (!isset($lists[$tl])) {
$lists[$tl] = true;
$atts = $this->pba($atts);
$line = "\t<" . $this->lT($tl) . "l$atts>\n\t\t<li>" . rtrim($content);
} else {
$line = "\t\t<li>" . rtrim($content);
}
if(strlen($nl) <= strlen($tl)) $line .= "</li>";
foreach(array_reverse($lists) as $k => $v) {
if(strlen($k) > strlen($nl)) {
$line .= "\n\t</" . $this->lT($k) . "l>";
if(strlen($k) > 1)
$line .= "</li>";
unset($lists[$k]);
}
}
}
else {
$line .= "\n";
}
$out[] = $line;
}
return $this->doTagBr('li', join("\n", $out));
}
// -------------------------------------------------------------
function lT($in)
{
return preg_match("/^#+/", $in) ? 'o' : 'u';
}
// -------------------------------------------------------------
function doTagBr($tag, $in)
{
return preg_replace_callback('@<('.preg_quote($tag).')([^>]*?)>(.*)(</\1>)@s', array(&$this, 'doBr'), $in);
}
// -------------------------------------------------------------
function doPBr($in)
{
return $this->doTagBr('p', $in);
}
// -------------------------------------------------------------
function doBr($m)
{
$content = preg_replace("@(.+)(?<!<br>|<br />)\n(?![#*\s|])@", '$1<br />', $m[3]);
return '<'.$m[1].$m[2].'>'.$content.$m[4];
}
// -------------------------------------------------------------
function block($text)
{
$find = $this->btag;
$tre = join('|', $find);
$text = explode("\n\n", $text);
$tag = 'p';
$atts = $cite = $graf = $ext = '';
foreach($text as $line) {
$anon = 0;
if (preg_match("/^($tre)($this->a$this->c)\.(\.?)(?::(\S+))? (.*)$/s", $line, $m)) {
// last block was extended, so close it
if ($ext)
$out[count($out)-1] .= $c1;
// new block
list(,$tag,$atts,$ext,$cite,$graf) = $m;
list($o1, $o2, $content, $c2, $c1) = $this->fBlock(array(0,$tag,$atts,$ext,$cite,$graf));
// leave off c1 if this block is extended, we'll close it at the start of the next block
if ($ext)
$line = $o1.$o2.$content.$c2;
else
$line = $o1.$o2.$content.$c2.$c1;
}
else {
// anonymous block
$anon = 1;
if ($ext or !preg_match('/^ /', $line)) {
list($o1, $o2, $content, $c2, $c1) = $this->fBlock(array(0,$tag,$atts,$ext,$cite,$line));
// skip $o1/$c1 because this is part of a continuing extended block
if ($tag == 'p' and !$this->hasRawText($content)) {
$line = $content;
}
else {
$line = $o2.$content.$c2;
}
}
else {
$line = $this->graf($line);
}
}
$line = $this->doPBr($line);
$line = preg_replace('/<br>/', '<br />', $line);
if ($ext and $anon)
$out[count($out)-1] .= "\n".$line;
else
$out[] = $line;
if (!$ext) {
$tag = 'p';
$atts = '';
$cite = '';
$graf = '';
}
}
if ($ext) $out[count($out)-1] .= $c1;
return join("\n\n", $out);
}
// -------------------------------------------------------------
function fBlock($m)
{
// $this->dump($m);
list(, $tag, $att, $ext, $cite, $content) = $m;
$atts = $this->pba($att);
$o1 = $o2 = $c2 = $c1 = '';
if (preg_match("/fn(\d+)/", $tag, $fns)) {
$tag = 'p';
$fnid = empty($this->fn[$fns[1]]) ? $fns[1] : $this->fn[$fns[1]];
$atts .= ' id="fn' . $fnid . '"';
if (strpos($atts, 'class=') === false)
$atts .= ' class="footnote"';
$content = '<sup>' . $fns[1] . '</sup> ' . $content;
}
if ($tag == "bq") {
$cite = $this->shelveURL($cite);
$cite = ($cite != '') ? ' cite="' . $cite . '"' : '';
$o1 = "\t<blockquote$cite$atts>\n";
$o2 = "\t\t<p".$this->pba($att, '', 0).">";
$c2 = "</p>";
$c1 = "\n\t</blockquote>";
}
elseif ($tag == 'bc') {
$o1 = "<pre$atts>";
$o2 = "<code".$this->pba($att, '', 0).">";
$c2 = "</code>";
$c1 = "</pre>";
$content = $this->shelve($this->r_encode_html(rtrim($content, "\n")."\n"));
}
elseif ($tag == 'notextile') {
$content = $this->shelve($content);
$o1 = $o2 = '';
$c1 = $c2 = '';
}
elseif ($tag == 'pre') {
$content = $this->shelve($this->r_encode_html(rtrim($content, "\n")."\n"));
$o1 = "<pre$atts>";
$o2 = $c2 = '';
$c1 = "</pre>";
}
else {
$o2 = "\t<$tag$atts>";
$c2 = "</$tag>";
}
$content = $this->graf($content);
return array($o1, $o2, $content, $c2, $c1);
}
// -------------------------------------------------------------
function graf($text)
{
// handle normal paragraph text
if (!$this->lite) {
$text = $this->noTextile($text);
$text = $this->code($text);
}
$text = $this->getRefs($text);
$text = $this->links($text);
if (!$this->noimage)
$text = $this->image($text);
if (!$this->lite) {
$text = $this->table($text);
$text = $this->lists($text);
}
$text = $this->span($text);
$text = $this->footnoteRef($text);
$text = $this->glyphs($text);
return rtrim($text, "\n");
}
// -------------------------------------------------------------
function span($text)
{
$qtags = array('\*\*','\*','\?\?','-','__','_','%','\+','~','\^');
$pnct = ".,\"'?!;:";
foreach($qtags as $f) {
$text = preg_replace_callback("/
(^|(?<=[\s>$pnct\(])|[{[])
($f)(?!$f)
({$this->c})
(?::(\S+))?
([^\s$f]+|\S.*?[^\s$f\n])
([$pnct]*)
$f
($|[\]}]|(?=[[:punct:]]{1,2}|\s|\)))
/x", array(&$this, "fSpan"), $text);
}
return $text;
}
// -------------------------------------------------------------
function fSpan($m)
{
$qtags = array(
'*' => 'strong',
'**' => 'b',
'??' => 'cite',
'_' => 'em',
'__' => 'i',
'-' => 'del',
'%' => 'span',
'+' => 'ins',
'~' => 'sub',
'^' => 'sup',
);
list(, $pre, $tag, $atts, $cite, $content, $end, $tail) = $m;
$tag = $qtags[$tag];
$atts = $this->pba($atts);
$atts .= ($cite != '') ? 'cite="' . $cite . '"' : '';
$out = "<$tag$atts>$content$end</$tag>";
if (($pre and !$tail) or ($tail and !$pre))
$out = $pre.$out.$tail;
// $this->dump($out);
return $out;
}
// -------------------------------------------------------------
function links($text)
{
return preg_replace_callback('/
(^|(?<=[\s>.$pnct\(])|[{[]) # $pre
" # start
(' . $this->c . ') # $atts
([^"]+?) # $text
(?:\(([^)]+?)\)(?="))? # $title
":
('.$this->urlch.'+?) # $url
(\/)? # $slash
([^\w\/;]*?) # $post
([\]}]|(?=\s|$|\)))
/x', array(&$this, "fLink"), $text);
}
// -------------------------------------------------------------
function fLink($m)
{
list(, $pre, $atts, $text, $title, $url, $slash, $post, $tail) = $m;
$atts = $this->pba($atts);
$atts .= ($title != '') ? ' title="' . $this->encode_html($title) . '"' : '';
if (!$this->noimage)
$text = $this->image($text);
$text = $this->span($text);
$text = $this->glyphs($text);
$url = $this->shelveURL($url.$slash);
$out = '<a href="' . $url . '"' . $atts . $this->rel . '>' . trim($text) . '</a>' . $post;
if (($pre and !$tail) or ($tail and !$pre))
$out = $pre.$out.$tail;
// $this->dump($out);
return $this->shelve($out);
}
// -------------------------------------------------------------
function getRefs($text)
{
return preg_replace_callback("/^\[(.+)\]((?:http:\/\/|\/)\S+)(?=\s|$)/Um",
array(&$this, "refs"), $text);
}
// -------------------------------------------------------------
function refs($m)
{
list(, $flag, $url) = $m;
$this->urlrefs[$flag] = $url;
return '';
}
// -------------------------------------------------------------
function shelveURL($text)
{
if (!$text) return '';
$ref = md5($text);
$this->urlshelf[$ref] = $text;
return 'urlref:'.$ref;
}
// -------------------------------------------------------------
function retrieveURLs($text)
{
return preg_replace_callback('/urlref:(\w{32})/',
array(&$this, "retrieveURL"), $text);
}
// -------------------------------------------------------------
function retrieveURL($m)
{
$ref = $m[1];
if (!isset($this->urlshelf[$ref]))
return $ref;
$url = $this->urlshelf[$ref];
if (isset($this->urlrefs[$url]))
$url = $this->urlrefs[$url];
return $this->r_encode_html($this->relURL($url));
}
// -------------------------------------------------------------
function relURL($url)
{
$parts = @parse_url(urldecode($url));
if ((empty($parts['scheme']) or @$parts['scheme'] == 'http') and
empty($parts['host']) and
preg_match('/^\w/', @$parts['path']))
$url = $this->hu.$url;
if ($this->restricted and !empty($parts['scheme']) and
!in_array($parts['scheme'], $this->url_schemes))
return '#';
return $url;
}
// -------------------------------------------------------------
function isRelURL($url)
{
$parts = @parse_url($url);
return (empty($parts['scheme']) and empty($parts['host']));
}
// -------------------------------------------------------------
function image($text)
{
return preg_replace_callback("/
(?:[[{])? # pre
\! # opening !
(\<|\=|\>)? # optional alignment atts
($this->c) # optional style,class atts
(?:\. )? # optional dot-space
([^\s(!]+) # presume this is the src
\s? # optional space
(?:\(([^\)]+)\))? # optional title
\! # closing
(?::(\S+))? # optional href
(?:[\]}]|(?=\s|$|\))) # lookahead: space or end of string
/x", array(&$this, "fImage"), $text);
}
// -------------------------------------------------------------
function fImage($m)
{
list(, $algn, $atts, $url) = $m;
$atts = $this->pba($atts);
$atts .= ($algn != '') ? ' align="' . $this->iAlign($algn) . '"' : '';
$atts .= (isset($m[4])) ? ' title="' . $m[4] . '"' : '';
$atts .= (isset($m[4])) ? ' alt="' . $m[4] . '"' : ' alt=""';
$size = false;
if ($this->isRelUrl($url))
$size = @getimagesize(realpath($this->doc_root.ltrim($url, $this->ds)));
if ($size) $atts .= " $size[3]";
$href = (isset($m[5])) ? $this->shelveURL($m[5]) : '';
$url = $this->shelveURL($url);
$out = array(
($href) ? '<a href="' . $href . '">' : '',
'<img src="' . $url . '"' . $atts . ' />',
($href) ? '</a>' : ''
);
return $this->shelve(join('',$out));
}
// -------------------------------------------------------------
function code($text)
{
$text = $this->doSpecial($text, '<code>', '</code>', 'fCode');
$text = $this->doSpecial($text, '@', '@', 'fCode');
$text = $this->doSpecial($text, '<pre>', '</pre>', 'fPre');
return $text;
}
// -------------------------------------------------------------
function fCode($m)
{
@list(, $before, $text, $after) = $m;
return $before.$this->shelve('<code>'.$this->r_encode_html($text).'</code>').$after;
}
// -------------------------------------------------------------
function fPre($m)
{
@list(, $before, $text, $after) = $m;
return $before.'<pre>'.$this->shelve($this->r_encode_html($text)).'</pre>'.$after;
}
// -------------------------------------------------------------
function shelve($val)
{
$i = uniqid(rand());
$this->shelf[$i] = $val;
return $i;
}
// -------------------------------------------------------------
function retrieve($text)
{
if (is_array($this->shelf))
do {
$old = $text;
$text = strtr($text, $this->shelf);
} while ($text != $old);
return $text;
}
// -------------------------------------------------------------
// NOTE: deprecated
function incomingEntities($text)
{
return preg_replace("/&(?![#a-z0-9]+;)/i", "x%x%", $text);
}
// -------------------------------------------------------------
// NOTE: deprecated
function encodeEntities($text)
{
return (function_exists('mb_encode_numericentity'))
? $this->encode_high($text)
: htmlentities($text, ENT_NOQUOTES, "utf-8");
}
// -------------------------------------------------------------
// NOTE: deprecated
function fixEntities($text)
{
/* de-entify any remaining angle brackets or ampersands */
return str_replace(array(">", "<", "&"),
array(">", "<", "&"), $text);
}
// -------------------------------------------------------------
function cleanWhiteSpace($text)
{
$out = str_replace("\r\n", "\n", $text); # DOS line endings
$out = preg_replace("/^[ \t]*\n/m", "\n", $out); # lines containing only whitespace
$out = preg_replace("/\n{3,}/", "\n\n", $out); # 3 or more line ends
$out = preg_replace("/^\n*/", "", $out); # leading blank lines
return $out;
}
// -------------------------------------------------------------
function doSpecial($text, $start, $end, $method='fSpecial')
{
return preg_replace_callback('/(^|\s|[[({>])'.preg_quote($start, '/').'(.*?)'.preg_quote($end, '/').'(\s|$|[\])}])?/ms',
array(&$this, $method), $text);
}
// -------------------------------------------------------------
function fSpecial($m)
{
// A special block like notextile or code
@list(, $before, $text, $after) = $m;
return $before.$this->shelve($this->encode_html($text)).$after;
}
// -------------------------------------------------------------
function noTextile($text)
{
$text = $this->doSpecial($text, '<notextile>', '</notextile>', 'fTextile');
return $this->doSpecial($text, '==', '==', 'fTextile');
}
// -------------------------------------------------------------
function fTextile($m)
{
@list(, $before, $notextile, $after) = $m;
#$notextile = str_replace(array_keys($modifiers), array_values($modifiers), $notextile);
return $before.$this->shelve($notextile).$after;
}
// -------------------------------------------------------------
function footnoteRef($text)
{