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filter is not described

richedit_pre filter-hook . WP 2.0.0

Deprecated in 4.3.0. It is no longer supported and can be removed in future releases. It is recommended to replace this hook with the same one.

Deprecated: 4.3.0

Filters text returned for the rich text editor.

This filter is first evaluated, and the value returned, if an empty string is passed to wp_richedit_pre(). If an empty string is passed, it results in a break tag and line feed.

If a non-empty string is passed, the filter is evaluated on the wp_richedit_pre() return after being formatted.

Usage

add_filter( 'richedit_pre', 'filter_function_name_220' );
function filter_function_name_220( $output ){
	// filter...

	return $output;
}
$output(string)
Text for the rich text editor.

Where the hook is called

wp_richedit_pre()
_WP_Editors::editor()
wp-includes/deprecated.php 3573
return apply_filters( 'richedit_pre', '' );
wp-includes/class-wp-editor.php 286
$content = apply_filters_deprecated( 'richedit_pre', array( $content ), '4.3.0', 'format_for_editor' );
wp-includes/deprecated.php 3581
return apply_filters( 'richedit_pre', $output );

Where the hook is used (in WP core)

Does not used.