private function lessc::evaluate in Less CSS Preprocessor 6

Same name and namespace in other branches

1. 6.3 lessphp/lessc.inc.php \lessc::evaluate()

2 calls to lessc::evaluate()

lessc::compileValue in ./lessc.inc.php

lessc::expHelper in ./lessc.inc.php

File

./lessc.inc.php, line 857

Class

lessc

Code

private function evaluate($op, $lft, $rgt) {
  $pushed = 0;

  // figure out what expressions and variables are equal to
  while (in_array($lft[0], $this->dtypes)) {
    if ($lft[0] == 'expression') {
      $lft = $this
        ->evaluate($lft[1], $lft[2], $lft[3]);
    }
    else {
      if ($lft[0] == 'variable') {
        $lft = $this
          ->getVal($lft[1], $this
          ->pushName($lft[1]), array(
          'number',
          0,
        ));
        $pushed++;
      }
    }
  }
  while ($pushed != 0) {
    $this
      ->popName();
    $pushed--;
  }
  while (in_array($rgt[0], $this->dtypes)) {
    if ($rgt[0] == 'expression') {
      $rgt = $this
        ->evaluate($rgt[1], $rgt[2], $rgt[3]);
    }
    else {
      if ($rgt[0] == 'variable') {
        $rgt = $this
          ->getVal($rgt[1], $this
          ->pushName($rgt[1]), array(
          'number',
          0,
        ));
        $pushed++;
      }
    }
  }
  while ($pushed != 0) {
    $this
      ->popName();
    $pushed--;
  }
  if ($lft[0] == 'color' && $rgt[0] == 'color') {
    return $this
      ->op_color_color($op, $lft, $rgt);
  }
  if ($lft[0] == 'color') {
    return $this
      ->op_color_number($op, $lft, $rgt);
  }
  if ($rgt[0] == 'color') {
    return $this
      ->op_number_color($op, $lft, $rgt);
  }

  // default number number
  return $this
    ->op_number_number($op, $lft, $rgt);
}