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<title>[45587] trunk/src/wp-includes/formatting.php: Formatting: Improve performance of `wpautop()` on large paragraphs.</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/45587">45587</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/45587","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>pento</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2019-07-02 03:28:03 +0000 (Tue, 02 Jul 2019)</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'>Formatting: Improve performance of `wpautop()` on large paragraphs.
Following <a href="https://core.trac.wordpress.org/changeset/45585">[45585]</a>, older versions of PHP could segfault when attempting to autop paragraphs with 10,000+ characters.
Rather than having to negative lookahead for every character in the paragraph (which could run into recursion limits), we can quickly jump ahead to the next tag and start checking from there.
See <a href="https://core.trac.wordpress.org/ticket/27350">#27350</a>.</pre>
<h3>Modified Paths</h3>
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<li><a href="#trunksrcwpincludesformattingphp">trunk/src/wp-includes/formatting.php</a></li>
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<h3>Diff</h3>
<a id="trunksrcwpincludesformattingphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/formatting.php</h4>
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<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/formatting.php 2019-07-02 01:44:06 UTC (rev 45586)
+++ trunk/src/wp-includes/formatting.php 2019-07-02 03:28:03 UTC (rev 45587)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -582,7 +582,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $pee = preg_replace( '#(<(' . $allblocksexceptp . ')[^>]*>)(((?!<p>|</\2>).)*)</p>#s', '$1$3', $pee );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // If an opening <p> tag is inside a block element tag, without a following closing <p> tag, remove it.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $pee = preg_replace( '#<p>(((?!</p>).)*</' . $allblocksexceptp . '>)#s', '$1', $pee );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $pee = preg_replace( '#<p>([^<]*(((?!</p>).)*)</' . $allblocksexceptp . '>)#s', '$1', $pee );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Optionally insert line breaks.
</span><span class="cx" style="display: block; padding: 0 10px"> if ( $br ) {
</span></span></pre>
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