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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 |
|---|---|
| 3000 | * in a break tag and line feed. |
| 3001 | * |
| 3002 | * If a non-empty string is passed, the filter is evaluated on the wp_richedit_pre() |
| 3003 | * return after being formatted. |
| 3004 | * |
| 3005 | * @since 2.0.0 |
| 3006 | * |
| 3007 | * @param string $output Text for the rich text editor. |
| 3008 | */ |
| 3009 | return apply_filters( 'richedit_pre', '' ); |
| 3010 | } |
| 3011 | |
| 3012 | $output = convert_chars($text); |
| 3013 | $output = wpautop($output); |
| 3014 | $output = htmlspecialchars($output, ENT_NOQUOTES, get_option( 'blog_charset' ) ); |
| 3015 | |
| 3016 | /** This filter is documented in wp-includes/formatting.php */ |
| 3017 | return apply_filters( 'richedit_pre', $output ); |
| 3018 | } |
| 3019 | |
| 3020 | /** |
| 3021 | * Formats text for the HTML editor. |
| 3022 | * |
| 3023 | * Unless $output is empty it will pass through htmlspecialchars before the |
| 3024 | * 'htmledit_pre' filter is applied. |
| 3025 | * |
| 3026 | * @since 2.5.0 |