get_code_type();
if ( ! in_array( $code_type, self::$code_types, true ) ) {
return $output;
}
if ( ! $snippet->maybe_compress_output() ) {
return $output;
}
$compress_method = 'compress_' . $code_type;
if ( method_exists( $this, $compress_method ) ) {
$output = $this->{$compress_method}( $output );
}
return $output;
}
/**
* Compress the JavaScript output.
*
* @param string $code The output of the snippet.
*
* @return string
*/
public static function compress_js( $code ) {
$code = preg_replace( '/\/\/[^\n\r]*/', '', $code ); // Remove single-line comments.
$code = preg_replace( '/\/\*[\s\S]*?\*\//', '', $code ); // Remove multi-line comments.
$code = preg_replace( '/\s+/', ' ', $code ); // Remove extra whitespace.
$code = preg_replace( '/\s*([{};,:])\s*/', '$1', $code ); // Remove spaces around characters.
return $code;
}
/**
* Compress the CSS output.
*
* @param string $code The output of the snippet.
*
* @return string
*/
public static function compress_css( $code ) {
$code = preg_replace( '!/\*.*?\*/!s', '', $code ); // Remove comments.
$code = preg_replace( '/\s+/', ' ', $code ); // Remove whitespace.
$code = str_replace( array( '; ', ': ', ' {', '{ ', ', ', '} ', ' }' ), array( ';', ':', '{', '{', ',', '}', '}' ), $code );
return $code;
}
/**
* Compress the HTML output.
*
* @param string $code The output of the snippet.
*
* @return string
*/
public static function compress_html( $code ) {
// Remove HTML comments.
$code = preg_replace( '//', '', $code );
// Process ';
},
$code
);
// Process ';
},
$code
);
// Remove unnecessary whitespace outside of