becomes
, which can break string translations * for strings containing such tags. * * This helper class stores all self-closing tags and their positions * in an array. After calling wp_kses_post, it restores the tags * to their original format. */ class WPML_Kses_Post { public static function wp_kses_post_preserve_tags_format( $input ) { $original_tags = self::get_string_tags( $input ); $filtered_input = wp_kses_post( $input ); $filtered_tags = self::get_string_tags( $filtered_input ); if ( $filtered_input === $input || empty( $filtered_tags ) ) { return $filtered_input; } $offset = 0; $original_tag_pos = 0; $filtered_tag_pos = 0; foreach ( $original_tags as $tag ) { if ( empty( $filtered_tags[ $filtered_tag_pos ] ) ) { break; } if ( $original_tags[ $original_tag_pos ][ 'tag_name' ] !== $filtered_tags[ $filtered_tag_pos ][ 'tag_name' ] ) { $original_tag_pos++; continue; } $original_tag_length = strlen( $tag[ 'tag' ] ); $filtered_tag_length = strlen( $filtered_tags[ $filtered_tag_pos ][ 'tag' ] ); $filtered_input = substr_replace( $filtered_input, $tag[ 'tag' ], $filtered_tags[ $filtered_tag_pos ][ 'position' ] - $offset, $filtered_tag_length ); $offset += $filtered_tag_length - $original_tag_length; $original_tag_pos++; $filtered_tag_pos++; } return $filtered_input; } public static function get_string_tags( $string ) { $tags = [ ]; preg_match_all( '/<[^>]+>/', $string, $matches, PREG_OFFSET_CAPTURE ); foreach ( $matches[ 0 ] as $match ) { $tags[ ] = [ 'tag' => $match[ 0 ], 'tag_name' => strtolower( trim( str_replace( [ '<', '>', '/' ], '', $match[ 0 ] ) ) ), 'position' => $match[ 1 ], ]; } return $tags; } }