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<title>[30450] branches/4.0: 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/30450">30450</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/30450","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 14:29:03 +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.
For the 4.0 branch; see <a href="https://core.trac.wordpress.org/changeset/30449">[30449]</a> for trunk.
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="#branches40srcwpincludesformattingphp">branches/4.0/src/wp-includes/formatting.php</a></li>
<li><a href="#branches40testsphpunittestsformattingWPTexturizephp">branches/4.0/tests/phpunit/tests/formatting/WPTexturize.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="branches40srcwpincludesformattingphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.0/src/wp-includes/formatting.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.0/src/wp-includes/formatting.php 2014-11-20 14:27:08 UTC (rev 30449)
+++ branches/4.0/src/wp-includes/formatting.php 2014-11-20 14:29:03 UTC (rev 30450)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -28,7 +28,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @return string The string replaced with html entities
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> function wptexturize($text, $reset = false) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- global $wp_cockneyreplace;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ global $wp_cockneyreplace, $shortcode_tags;
</ins><span class="cx" style="display: block; padding: 0 10px"> static $static_characters, $static_replacements, $dynamic_characters, $dynamic_replacements,
</span><span class="cx" style="display: block; padding: 0 10px"> $default_no_texturize_tags, $default_no_texturize_shortcodes, $run_texturize = true;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -205,21 +205,34 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Look for shortcodes and HTML elements.
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $tagnames = array_keys( $shortcode_tags );
+ $tagregexp = join( '|', array_map( 'preg_quote', $tagnames ) );
+ $tagregexp = "(?:$tagregexp)(?![\\w-])"; // Excerpt of get_shortcode_regex().
+
+ $comment_regex =
+ '!' // Start of comment, after the <.
+ . '(?:' // Unroll the loop: Consume everything until --> is found.
+ . '-(?!->)' // Dash not followed by end of comment.
+ . '[^\-]*+' // Consume non-dashes.
+ . ')*+' // Loop possessively.
+ . '-->'; // End of comment.
+
</ins><span class="cx" style="display: block; padding: 0 10px"> $regex = '/(' // Capture the entire match.
</span><span class="cx" style="display: block; padding: 0 10px"> . '<' // Find start of element.
</span><span class="cx" style="display: block; padding: 0 10px"> . '(?(?=!--)' // Is this a comment?
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- . '.+?--\s*>' // Find end of comment
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ . $comment_regex // Find end of comment
</ins><span class="cx" style="display: block; padding: 0 10px"> . '|'
</span><span class="cx" style="display: block; padding: 0 10px"> . '[^>]+>' // Find end of element
</span><span class="cx" style="display: block; padding: 0 10px"> . ')'
</span><span class="cx" style="display: block; padding: 0 10px"> . '|'
</span><span class="cx" style="display: block; padding: 0 10px"> . '\[' // Find start of shortcode.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- . '\[?' // Shortcodes may begin with [[
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ . '[\/\[]?' // Shortcodes may begin with [/ or [[
+ . $tagregexp // Only match registered shortcodes, because performance.
</ins><span class="cx" style="display: block; padding: 0 10px"> . '(?:'
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- . '[^\[\]<>]' // Shortcodes do not contain other shortcodes.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ . '[^\[\]<>]+' // Shortcodes do not contain other shortcodes. Quantifier critical.
</ins><span class="cx" style="display: block; padding: 0 10px"> . '|'
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- . '<[^>]+>' // HTML elements permitted. Prevents matching ] before >.
- . ')++'
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ . '<[^\[\]>]*>' // HTML elements permitted. Prevents matching ] before >.
+ . ')*+' // Possessive critical.
</ins><span class="cx" style="display: block; padding: 0 10px"> . '\]' // Find end of shortcode.
</span><span class="cx" style="display: block; padding: 0 10px"> . '\]?' // Shortcodes may end with ]]
</span><span class="cx" style="display: block; padding: 0 10px"> . ')/s';
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -241,12 +254,12 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> continue;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- } elseif ( '[' === $first && 1 === preg_match( '/^\[(?:[^\[\]<>]|<[^>]+>)++\]$/', $curl ) ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ } elseif ( '[' === $first && 1 === preg_match( '/^\[\/?' . $tagregexp . '(?:[^\[\]<>]+|<[^\[\]>]*>)*+\]$/', $curl ) ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> // This is a shortcode delimiter.
</span><span class="cx" style="display: block; padding: 0 10px">
</span><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">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- } elseif ( '[' === $first && 1 === preg_match( '/^\[\[?(?:[^\[\]<>]|<[^>]+>)++\]\]?$/', $curl ) ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ } elseif ( '[' === $first && 1 === preg_match( '/^\[[\/\[]?' . $tagregexp . '(?:[^\[\]<>]+|<[^\[\]>]*>)*+\]\]?$/', $curl ) ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> // This is an escaped shortcode delimiter.
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Do not texturize.
</span></span></pre></div>
<a id="branches40testsphpunittestsformattingWPTexturizephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.0/tests/phpunit/tests/formatting/WPTexturize.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.0/tests/phpunit/tests/formatting/WPTexturize.php 2014-11-20 14:27:08 UTC (rev 30449)
+++ branches/4.0/tests/phpunit/tests/formatting/WPTexturize.php 2014-11-20 14:29:03 UTC (rev 30450)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -11,7 +11,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> function test_disable() {
</span><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals('<pre>---</pre>', wptexturize('<pre>---</pre>'));
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $this->assertEquals('[a]a–b[code]---[/code]a–b[/a]', wptexturize('[a]a--b[code]---[/code]a--b[/a]'));
</del><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals('<pre><code></code>--</pre>', wptexturize('<pre><code></code>--</pre>'));
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals( '<code>---</code>', wptexturize( '<code>---</code>' ) );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1193,6 +1192,42 @@
</span><span class="cx" style="display: block; padding: 0 10px"> '[ is it wise to <a title="allow user content ] here? hmm"> maybe </a> ]',
</span><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ '[is it wise to <a title="allow user content ] here? hmm"> maybe </a> ]',
+ '[is it wise to <a title="allow user content ] here? hmm"> maybe </a> ]',
+ ),
+ array(
+ '[caption - is it wise to <a title="allow user content ] here? hmm"> maybe </a> ]',
+ '[caption – is it wise to <a title="allow user content ] here? hmm"> maybe </a> ]',
+ ),
+ array(
+ '[caption - is it wise to <a title="allow user content here? hmm"> ] maybe </a> ]',
+ '[caption - is it wise to <a title="allow user content here? hmm"> ] maybe </a> ]',
+ ),
+ array(
+ '[caption - is it wise to <a title="allow user content here? hmm"> maybe </a> ]',
+ '[caption - is it wise to <a title="allow user content here? hmm"> maybe </a> ]',
+ ),
+ array(
+ '[caption compare=">"]',
+ '[caption compare=”>”]',
+ ),
+ array(
+ '[caption compare="<>"]',
+ '[caption compare="<>"]',
+ ),
+ array(
+ '[caption compare="<" attr2="value" <!-->/]',
+ '[caption compare="<" attr2="value" <!-->/]',
+ ),
+ array(
+ '[caption compare="<"]',
+ '[caption compare=”<”]',
+ ),
+ array(
+ '[caption compare="<"]<br />',
+ '[caption compare=”<"]<br />',
+ ),
+ array(
</ins><span class="cx" style="display: block; padding: 0 10px"> '[ photos by <a href="http://example.com/?a[]=1&a[]=2"> this guy </a> ]',
</span><span class="cx" style="display: block; padding: 0 10px"> '[ photos by <a href="http://example.com/?a[]=1&a[]=2"> this guy </a> ]',
</span><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1210,19 +1245,19 @@
</span><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><span class="cx" style="display: block; padding: 0 10px"> '[/...]', // This would actually be ignored by the shortcode system. The decision to not texturize it is intentional, if not correct.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- '[/...]',
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ '[/…]',
</ins><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><span class="cx" style="display: block; padding: 0 10px"> '[...]...[/...]', // These are potentially usable shortcodes.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- '[...]…[/...]',
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ '[…]…[/…]',
</ins><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><span class="cx" style="display: block; padding: 0 10px"> '[[...]]...[[/...]]', // Shortcode parsing will ignore the inner ]...[ part and treat this as a single escaped shortcode.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- '[[...]]…[[/...]]',
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ '[[…]]…[[/…]]',
</ins><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><span class="cx" style="display: block; padding: 0 10px"> '[[[...]]]...[[[/...]]]', // Again, shortcode parsing matches, but only the [[...] and [/...]] parts.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- '[[[...]]]…[[[/...]]]',
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ '[[[…]]]…[[[/…]]]',
</ins><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><span class="cx" style="display: block; padding: 0 10px"> '[[code]...[/code]...', // These are potentially usable shortcodes. Unfortunately, the meaning of [[code] is ambiguous unless we run the entire shortcode regexp.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1230,7 +1265,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><span class="cx" style="display: block; padding: 0 10px"> '[code]...[/code]]...', // These are potentially usable shortcodes. Unfortunately, the meaning of [/code]] is ambiguous unless we run the entire shortcode regexp.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- '[code]...[/code]]...', // This test would not pass in 3.9 because the extra brace was always ignored by texturize.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ '[code]…[/code]]…', // This test would not pass in 3.9 because the extra brace was always ignored by texturize.
</ins><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><span class="cx" style="display: block; padding: 0 10px"> '[gal>ery ...]',
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1345,8 +1380,8 @@
</span><span class="cx" style="display: block; padding: 0 10px"> '[ but also catches the <b>styled “[quote]” here</b> ]',
</span><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- '[Let\'s get crazy<input>[plugin code="<a href=\'?a[]=100\'>hello</a>"]</input>world]',
- '[Let’s get crazy<input>[plugin code="<a href=\'?a[]=100\'>hello</a>"]</input>world]',
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ '[Let\'s get crazy<input>[caption code="<a href=\'?a[]=100\'>hello</a>"]</input>world]', // caption shortcode is invalid here because it contains [] chars.
+ '[Let’s get crazy<input>[caption code=”<a href=\'?a[]=100\'>hello</a>“]</input>world]',
</ins><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1715,16 +1750,105 @@
</span><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><span class="cx" style="display: block; padding: 0 10px"> '<span>hello[code]---</span>',
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- '<span>hello[code]---</span>',
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ '<span>hello[code]—</span>',
</ins><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><span class="cx" style="display: block; padding: 0 10px"> '[code]hello<span>---</span>',
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- '[code]hello<span>---</span>',
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ '[code]hello<span>—</span>',
</ins><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><span class="cx" style="display: block; padding: 0 10px"> '[code]hello</span>---</span>',
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- '[code]hello</span>---</span>',
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ '[code]hello</span>—</span>',
</ins><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ /**
+ * Test disabling shortcode texturization.
+ *
+ * @ticket 29557
+ * @dataProvider data_unregistered_shortcodes
+ */
+ function test_unregistered_shortcodes( $input, $output ) {
+ add_filter( 'no_texturize_shortcodes', array( $this, 'filter_shortcodes' ), 10, 1 );
+
+ $output = $this->assertEquals( $output, wptexturize( $input ) );
+
+ remove_filter( 'no_texturize_shortcodes', array( $this, 'filter_shortcodes' ), 10, 1 );
+ return $output;
+ }
+
+ function filter_shortcodes( $disabled ) {
+ $disabled[] = 'audio';
+ return $disabled;
+ }
+
+ function data_unregistered_shortcodes() {
+ return array(
+ array(
+ '[a]a--b[code]---[/code]a--b[/a]', // code is not a registered shortcode.
+ '[a]a–b[code]—[/code]a–b[/a]',
+ ),
+ array(
+ '[a]a--b[audio]---[/audio]a--b[/a]',
+ '[a]a–b[audio]---[/audio]a–b[/a]',
+ ),
+ array(
+ '[code ...]...[/code]', // code is not a registered shortcode.
+ '[code …]…[/code]',
+ ),
+ array(
+ '[hello ...]...[/hello]', // hello is not a registered shortcode.
+ '[hello …]…[/hello]',
+ ),
+ array(
+ '[...]...[/...]', // These are potentially usable shortcodes.
+ '[…]…[/…]',
+ ),
+ array(
+ '[gal>ery ...]',
+ '[gal>ery …]',
+ ),
+ array(
+ '[randomthing param="test"]',
+ '[randomthing param=”test”]',
+ ),
+ array(
+ '[[audio]...[/audio]...', // These are potentially usable shortcodes. Unfortunately, the meaning of [[audio] is ambiguous unless we run the entire shortcode regexp.
+ '[[audio]…[/audio]…',
+ ),
+ array(
+ '[audio]...[/audio]]...', // These are potentially usable shortcodes. Unfortunately, the meaning of [/audio]] is ambiguous unless we run the entire shortcode regexp.
+ '[audio]...[/audio]]...', // This test would not pass in 3.9 because the extra brace was always ignored by texturize.
+ ),
+ array(
+ '<span>hello[/audio]---</span>',
+ '<span>hello[/audio]—</span>',
+ ),
+ array(
+ '[/audio]hello<span>---</span>',
+ '[/audio]hello<span>—</span>',
+ ),
+ array(
+ '[audio]hello[/audio]---</span>',
+ '[audio]hello[/audio]—</span>',
+ ),
+ array(
+ '<span>hello</span>---[audio]',
+ '<span>hello</span>—[audio]',
+ ),
+ array(
+ '<span>hello[audio]---</span>',
+ '<span>hello[audio]---</span>',
+ ),
+ array(
+ '[audio]hello<span>---</span>',
+ '[audio]hello<span>---</span>',
+ ),
+ array(
+ '[audio]hello</span>---</span>',
+ '[audio]hello</span>---</span>',
+ ),
+ );
+ }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of file
</span></span></pre>
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