original_string: protected function func(&$func) {
  $s = $this->seek();
  
  if ($this->match('(%|[\w\-_][\w\-_:\.]+|[\w_])', $m) && $this->literal('(')) {
  $fname = $m[1];
  
  $sPreArgs = $this->seek();
  
  $args = array();
  while (true) {
  $ss = $this->seek();
  // this ugly nonsense is for ie filter properties
  if ($this->keyword($name) && $this->literal('=') && $this->expressionList($value)) {
  $args[] = array("string", "", array($name, "=", $value));
  } else {
  $this->seek($ss);
  if ($this->expressionList($value)) {
  $args[] = $value;
  }
  }
  
  if (!$this->literal(',')) break;
  }
  $args = array('list', ',', $args);
  
  if ($this->literal(')')) {
  $func = array('function', $fname, $args);
  return true;
  } elseif ($fname == 'url') {
  // couldn't parse and in url? treat as string
  $this->seek($sPreArgs);
  if ($this->openString(")", $string) && $this->literal(")")) {
  $func = array('function', $fname, $string);
  return true;
  }
  }
  }
  
  $this->seek($s);
  return false;
  }
code: protected function func(&$func) {
  $s = $this->seek();
  
  if ($this->match('(%|[\w\-_][\w\-_:\.]+|[\w_])', $m) && $this->literal('(')) {
  $fname = $m[1];
  
  $sPreArgs = $this->seek();
  
  $args = array();
  while (true) {
  $ss = $this->seek();
  // this ugly nonsense is for ie filter properties
  if ($this->keyword($name) && $this->literal('=') && $this->expressionList($value)) {
  $args[] = array("string", "", array($name, "=", $value));
  } else {
  $this->seek($ss);
  if ($this->expressionList($value)) {
  $args[] = $value;
  }
  }
  
  if (!$this->literal(',')) break;
  }
  $args = array('list', ',', $args);
  
  if ($this->literal(')')) {
  $func = array('function', $fname, $args);
  return true;
  } elseif ($fname == 'url') {
  // couldn't parse and in url? treat as string
  $this->seek($sPreArgs);
  if ($this->openString(")", $string) && $this->literal(")")) {
  $func = array('function', $fname, $string);
  return true;
  }
  }
  }
  
  $this->seek($s);
  return false;
  }
code_tokens: protected function func ( & $ func ) { $ s = $ this -> seek ( ) ; if ( $ this -> match ( '(%|[\w\-_][\w\-_:\.]+|[\w_])' , $ m ) && $ this -> literal ( '(' ) ) { $ fname = $ m [ 1 ] ; $ sPreArgs = $ this -> seek ( ) ; $ args = array ( ) ; while ( true ) { $ ss = $ this -> seek ( ) ; // this ugly nonsense is for ie filter properties
   if ( $ this -> keyword ( $ name ) && $ this -> literal ( '=' ) && $ this -> expressionList ( $ value ) ) { $ args [ ] = array ( "string" , "" , array ( $ name , "=" , $ value ) ) ; } else { $ this -> seek ( $ ss ) ; if ( $ this -> expressionList ( $ value ) ) { $ args [ ] = $ value ; } } if ( ! $ this -> literal ( ',' ) ) break ; } $ args = array ( 'list' , ',' , $ args ) ; if ( $ this -> literal ( ')' ) ) { $ func = array ( 'function' , $ fname , $ args ) ; return true ; } elseif ( $ fname == 'url' ) { // couldn't parse and in url? treat as string
   $ this -> seek ( $ sPreArgs ) ; if ( $ this -> openString ( ")" , $ string ) && $ this -> literal ( ")" ) ) { $ func = array ( 'function' , $ fname , $ string ) ; return true ; } } } $ this -> seek ( $ s ) ; return false ; }
docstring: a css function
docstring_tokens: a css function