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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 |
|---|---|
| 2123 | * be applied to an empty string. |
| 2124 | * |
| 2125 | * @since 2.0.0 |
| 2126 | * |
| 2127 | * @param string $text The text to be formatted. |
| 2128 | * @return string The formatted text after filter is applied. |
| 2129 | */ |
| 2130 | function wp_richedit_pre($text) { |
| 2131 | // Filtering a blank results in an annoying <br />\n |
| 2132 | if ( empty($text) ) return apply_filters('richedit_pre', ''); |
| 2133 | |
| 2134 | $output = convert_chars($text); |
| 2135 | $output = wpautop($output); |
| 2136 | $output = htmlspecialchars($output, ENT_NOQUOTES); |
| 2137 | |
| 2138 | return apply_filters('richedit_pre', $output); |
| 2139 | } |
| 2140 | |
| 2141 | /** |
| 2142 | * Formats text for the HTML editor. |
| 2143 | * |
| 2144 | * Unless $output is empty it will pass through htmlspecialchars before the |
| 2145 | * 'htmledit_pre' filter is applied. |
| 2146 | * |
| 2147 | * @since 2.5.0 |