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Add blockquote footer syntax for citations. #167

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Add blockquote footer syntax for citations. #167

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27 changes: 27 additions & 0 deletions Michelf/Markdown.php
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Original file line number Diff line number Diff line change
Expand Up @@ -2508,6 +2508,33 @@ protected function _doHeaders_callback_atx($matches) {
}


protected function _doBlockQuotes_callback($matches) {
$bq = $matches[1];
# trim one level of quoting - trim whitespace-only lines
$bq = preg_replace('/^[ ]*>[ ]?|^[ ]+$/m', '', $bq);

# If final line of blockquote starts with -- treat it as a footer.
$split = preg_split('/\n *--(.*)\n$/', $bq, 0 , PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
$bq = $split[0];
$footer = isset($split[1]) ? $split[1] : NULL;

$bq = $this->runBlockGamut($bq); # recurse

if (isset($footer)) {
$footer = $this->runSpanGamut($footer);
$bq .= "\n<footer>\n $footer\n</footer>";
}

$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);

return "\n". $this->hashBlock("<blockquote>\n$bq\n</blockquote>")."\n\n";
}


protected function doTables($text) {
#
# Form HTML tables.
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