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<title>[30455] branches/3.8: Anchor texturize to shortcodes to improve regex efficiency.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/30455">30455</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/30455","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>nacin</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2014-11-20 14:36:42 +0000 (Thu, 20 Nov 2014)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Anchor texturize to shortcodes to improve regex efficiency.
Merges <a href="https://core.trac.wordpress.org/changeset/30452">[30452]</a> to the 3.8 branch.
props miqrogroove.
see <a href="https://core.trac.wordpress.org/ticket/29557">#29557</a> for segfault issues.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#branches38srcwpincludesformattingphp">branches/3.8/src/wp-includes/formatting.php</a></li>
</ul>
<h3>Property Changed</h3>
<ul>
<li><a href="#branches38">branches/3.8/</a></li>
</ul>
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<h3>Diff</h3>
<span class="cx" style="display: block; padding: 0 10px">Index: branches/3.8
</span><span class="cx" style="display: block; padding: 0 10px">===================================================================
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">--- branches/3.8 2014-11-20 14:33:13 UTC (rev 30454)
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+++ branches/3.8 2014-11-20 14:36:42 UTC (rev 30455)
</ins><a id="branches38"></a>
<div class="propset"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Property changes: branches/3.8</h4>
<pre class="diff"><span>
</span></pre></div>
<a id="svnmergeinfo"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: svn:mergeinfo</h4></div>
<span class="cx" style="display: block; padding: 0 10px"> /branches/3.1:18031
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/3.3:20543
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/3.4:21757
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/branches/3.9:29384,29408
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/branches/3.9:29384,29408,30452
</ins><span class="cx" style="display: block; padding: 0 10px"> /trunk:26864,26874-26875,26885,26887-26888,26905,26919-26925,26928-26929,26932,26935,26952,26959,26961,26967,26970,26993,26999,27006-27007,27012,27021,27119,27134,27511,27760,27822,27872,27905-27906,27928,27964,27975,27990,28053,28113,29327,29378,29381-29382,29397,29404,29631,30412,30417,30425,30430,30435,30438,30443
</span><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="branches38srcwpincludesformattingphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/3.8/src/wp-includes/formatting.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/3.8/src/wp-includes/formatting.php 2014-11-20 14:33:13 UTC (rev 30454)
+++ branches/3.8/src/wp-includes/formatting.php 2014-11-20 14:36:42 UTC (rev 30455)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -121,8 +121,15 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $no_texturize_tags_stack = array();
</span><span class="cx" style="display: block; padding: 0 10px"> $no_texturize_shortcodes_stack = array();
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $textarr = preg_split('/(<.*>|\[.*\])/Us', $text, -1, PREG_SPLIT_DELIM_CAPTURE);
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // Look for shortcodes and HTML elements.
+
+ $shortcode_regex =
+ '\[' // Find start of shortcode.
+ . '[^\[\]<>]++' // Shortcodes do not contain other shortcodes. Possessive critical.
+ . '\]'; // Find end of shortcode.
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $textarr = preg_split("/(<[^>]*>|$shortcode_regex)/s", $text, -1, PREG_SPLIT_DELIM_CAPTURE);
+
</ins><span class="cx" style="display: block; padding: 0 10px"> foreach ( $textarr as &$curl ) {
</span><span class="cx" style="display: block; padding: 0 10px"> if ( empty( $curl ) )
</span><span class="cx" style="display: block; padding: 0 10px"> continue;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -131,7 +138,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $first = $curl[0];
</span><span class="cx" style="display: block; padding: 0 10px"> if ( '<' === $first ) {
</span><span class="cx" style="display: block; padding: 0 10px"> _wptexturize_pushpop_element($curl, $no_texturize_tags_stack, $no_texturize_tags, '<', '>');
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- } elseif ( '[' === $first ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ } elseif ( '[' === $first && 1 === preg_match( '/^' . $shortcode_regex . '$/', $curl ) ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> _wptexturize_pushpop_element($curl, $no_texturize_shortcodes_stack, $no_texturize_shortcodes, '[', ']');
</span><span class="cx" style="display: block; padding: 0 10px"> } elseif ( empty($no_texturize_shortcodes_stack) && empty($no_texturize_tags_stack) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> // This is not a tag, nor is the texturization disabled static strings
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -172,6 +179,8 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> array_push($stack, $matches[1]);
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ } elseif ( 0 == count( $stack ) ) {
+ // Stack is empty. Just stop.
</ins><span class="cx" style="display: block; padding: 0 10px"> } else {
</span><span class="cx" style="display: block; padding: 0 10px"> // Closing? Check $text+2 against disabled elements
</span><span class="cx" style="display: block; padding: 0 10px"> $c = preg_quote($closing, '/');
</span></span></pre>
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