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Shortcodes: Add a do_shortcode_tag filter.

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The addition of the `pre_do_shortcode_tag` in [38506] allows plugins to short-circuit the shortcode execution process, which is particularly helpful for caching expensive shortcodes.

The `do_shortcode_tag` is the corresponding part of that system - when a shortcode hasn't been executed previously, there needs to be a clean method of populating the cache.

Props flixos90.
Fixes #32790.



git-svn-id: https://develop.svn.wordpress.org/trunk@38713 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Gary Pendergast
2016-10-04 00:38:45 +00:00
parent e3becde640
commit 7e4e9f1ce7
2 changed files with 83 additions and 8 deletions
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22
src/wp-includes/shortcodes.php
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@@ -339,13 +339,21 @@ function do_shortcode_tag( $m ) {
return $return;
}
if ( isset( $m[5] ) ) {
// enclosing tag - extra parameter
return $m[1] . call_user_func( $shortcode_tags[$tag], $attr, $m[5], $tag ) . $m[6];
} else {
// self-closing tag
return $m[1] . call_user_func( $shortcode_tags[$tag], $attr, null, $tag ) . $m[6];
}
$content = isset( $m[5] ) ? $m[5] : null;
$output = $m[1] . call_user_func( $shortcode_tags[ $tag ], $attr, $content, $tag ) . $m[6];
/**
* Filters the output created by a shortcode callback.
*
* @since 4.7.0
*
* @param string $output Shortcode output.
* @param string $tag Shortcode name.
* @param array $attr Shortcode attributes array,
* @param array $m Regular expression match array.
*/
return apply_filters( 'do_shortcode_tag', $output, $tag, $attr, $m );
}
/**