WP_Duotone::colord_parse_hsla_string()
Parses a valid HSL[A] CSS color function/string.
Direct port of colord's parseHslaString function.
Method of the class: WP_Duotone{}
No Hooks.
Return
Array|null
. An array of RGBA values or null if the RGB string is invalid.
Usage
$result = WP_Duotone::colord_parse_hsla_string( $input );
- $input(string) (required)
- The HSLA string to parse.
Changelog
Since 6.3.0 | Introduced. |
WP_Duotone::colord_parse_hsla_string() WP Duotone::colord parse hsla string code WP 6.6.2
private static function colord_parse_hsla_string( $input ) { // Functional syntax. $is_match = preg_match( '/^hsla?\(\s*([+-]?\d*\.?\d+)(deg|rad|grad|turn)?\s*,\s*([+-]?\d*\.?\d+)%\s*,\s*([+-]?\d*\.?\d+)%\s*(?:,\s*([+-]?\d*\.?\d+)(%)?\s*)?\)$/i', $input, $match ); if ( ! $is_match ) { // Whitespace syntax. $is_match = preg_match( '/^hsla?\(\s*([+-]?\d*\.?\d+)(deg|rad|grad|turn)?\s+([+-]?\d*\.?\d+)%\s+([+-]?\d*\.?\d+)%\s*(?:\/\s*([+-]?\d*\.?\d+)(%)?\s*)?\)$/i', $input, $match ); } if ( ! $is_match ) { return null; } /* * For some reason, preg_match doesn't include empty matches at the end * of the array, so we add them manually to make things easier later. */ for ( $i = 1; $i <= 6; $i++ ) { if ( ! isset( $match[ $i ] ) ) { $match[ $i ] = ''; } } $hsla = self::colord_clamp_hsla( array( 'h' => self::colord_parse_hue( $match[1], $match[2] ), 's' => (float) $match[3], 'l' => (float) $match[4], 'a' => '' === $match[5] ? 1 : (float) $match[5] / ( $match[6] ? 100 : 1 ), ) ); return self::colord_hsla_to_rgba( $hsla ); }