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<?php
require_once('markdown.php');
define( 'MARKDOWNEXTRAEXTENDED_VERSION', "0.3" );
function MarkdownExtended($text, $default_claases = array()){
$parser = new MarkdownExtraExtended_Parser($default_claases);
return $parser->transform($text);
}
class MarkdownExtraExtended_Parser extends MarkdownExtra_Parser {
# Tags that are always treated as block tags:
var $block_tags_re = 'figure|figcaption|p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|form|fieldset|iframe|hr|legend';
var $default_classes;
function __construct($default_classes = array()) {
$this->block_gamut += array(
"doFencedFigures" => 7,
);
MarkdownExtra_Parser::__construct();
}
function transform($text) {
$text = parent::transform($text);
return $text;
}
function doHardBreaks($text) {
# Do hard breaks:
# EXTENDED: changed to allow breaks without two spaces and just one new line
# original code /* return preg_replace_callback('/ {2,}\n/', */
// Remove double newlines that remain
$text = preg_replace_callback('/\n\n/',
array(&$this, '_doHardBreaks_callback'), $text);
return preg_replace_callback('/ *\n/',
array(&$this, '_doHardBreaks_callback'), $text);
}
function doBlockQuotes($text) {
$text = preg_replace_callback('/
(?>^[ ]*>[ ]?
(?:\((.+?)\))?
[ ]*(.+\n(?:.+\n)*)
)+
/xm',
array(&$this, '_doBlockQuotes_callback'), $text);
return $text;
}
function _doBlockQuotes_callback($matches) {
$cite = $matches[1];
$bq = '> ' . $matches[2];
# trim one level of quoting - trim whitespace-only lines
$bq = preg_replace('/^[ ]*>[ ]?|^[ ]+$/m', '', $bq);
$bq = $this->runBlockGamut($bq); # recurse
$bq = preg_replace('/^/m', " ", $bq);
# These leading spaces cause problem with <pre> content,
# so we need to fix that:
$bq = preg_replace_callback('{(\s*<pre>.+?</pre>)}sx',
array(&$this, '_doBlockQuotes_callback2'), $bq);
$res = "<blockquote";
$res .= empty($cite) ? ">" : " cite=\"$cite\">";
$res .= "\n$bq\n</blockquote>";
return "\n". $this->hashBlock($res)."\n\n";
}
function doFencedCodeBlocks($text) {
$less_than_tab = $this->tab_width;
$text = preg_replace_callback('{
(?:\n|\A)
# 1: Opening marker
(
~{3,}|`{3,} # Marker: three tilde or more.
)
[ ]?([\w\#]+)?(?:,[ ]?(\d+))?[ ]* \n # Whitespace and newline following marker.
# 3: Content
(
(?>
(?!\1 [ ]* \n) # Not a closing marker.
.*\n+
)+
)
# Closing marker.
\1 [ ]* \n
}xm',
array(&$this, '_doFencedCodeBlocks_callback'), $text);
return $text;
}
function _doFencedCodeBlocks_callback($matches) {
$codeblock = $matches[4];
$codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES);
$codeblock = preg_replace_callback('/^\n+/',
array(&$this, '_doFencedCodeBlocks_newlines'), $codeblock);
//$codeblock = "<pre><code>$codeblock</code></pre>";
//$cb = "<pre><code";
$cb = empty($matches[3]) ? "<pre><code" : "<pre class=\"linenums:$matches[3]\"><code";
$cb .= empty($matches[2]) ? " class=\"multiline\">" : " class=\"multiline language-$matches[2]\">";
$cb .= "$codeblock</code></pre>";
return "\n\n".$this->hashBlock($cb)."\n\n";
}
function doFencedFigures($text){
$text = preg_replace_callback('{
(?:\n|\A)
# 1: Opening marker
(
={3,} # Marker: equal sign.
)
[ ]?(?:\[([^\]]+)\])?[ ]* \n # Whitespace and newline following marker.
# 3: Content
(
(?>
(?!\1 [ ]?(?:\[([^\]]+)\])?[ ]* \n) # Not a closing marker.
.*\n+
)+
)
# Closing marker.
\1 [ ]?(?:\[([^\]]+)\])?[ ]* \n
}xm', array(&$this, '_doFencedFigures_callback'), $text);
return $text;
}
function _doFencedFigures_callback($matches) {
# get figcaption
$topcaption = empty($matches[2]) ? null : $this->runBlockGamut($matches[2]);
$bottomcaption = empty($matches[5]) ? null : $this->runBlockGamut($matches[5]);
$figure = $matches[3];
$figure = $this->runBlockGamut($figure); # recurse
$figure = preg_replace('/^/m', " ", $figure);
# These leading spaces cause problem with <pre> content,
# so we need to fix that - reuse blockqoute code to handle this:
$figure = preg_replace_callback('{(\s*<pre>.+?</pre>)}sx',
array(&$this, '_doBlockQuotes_callback2'), $figure);
$res = "<figure>";
if(!empty($topcaption)){
$res .= "\n<figcaption>$topcaption</figcaption>";
}
$res .= "\n$figure\n";
if(!empty($bottomcaption) && empty($topcaption)){
$res .= "<figcaption>$bottomcaption</figcaption>";
}
$res .= "</figure>";
return "\n". $this->hashBlock($res)."\n\n";
}
}
?>
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