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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 989 | |
| 990 | foreach ($to_ncr as $entity => $ncr) { |
| 991 | $text = str_replace($entity, $ncr, $text); |
| 992 | } |
| 993 | return $text; |
| 994 | } |
| 995 | |
| 996 | function wp_richedit_pre($text) { |
| 997 | // Filtering a blank results in an annoying <br />\n |
| 998 | if ( empty($text) ) return apply_filters('richedit_pre', ''); |
| 999 | |
| 1000 | $output = $text; |
| 1001 | $output = convert_chars($output); |
| 1002 | $output = wpautop($output); |
| 1003 | |
| 1004 | // These must be double-escaped or planets will collide. |
| 1005 | $output = str_replace('<', '&lt;', $output); |
| 1006 | $output = str_replace('>', '&gt;', $output); |
| 1007 | |
| 1008 | return apply_filters('richedit_pre', $output); |
| 1009 | } |
| 1010 | |
| 1011 | ?> |
| 1012 | |