original_string: private function tagChange($tag, $tagLen, $text, $index)
      {
          return substr($text, $index, $tagLen) === $tag;
      }
code: private function tagChange($tag, $tagLen, $text, $index)
      {
          return substr($text, $index, $tagLen) === $tag;
      }
code_tokens: private function tagChange ( $ tag , $ tagLen , $ text , $ index ) { return substr ( $ text , $ index , $ tagLen ) === $ tag ; }
docstring: Test whether it's time to change tags.
  
  @param string $tag    Current tag name
  @param int    $tagLen Current tag name length
  @param string $text   Mustache template source
  @param int    $index  Current tokenizer index
  
  @return bool True if this is a closing section tag
docstring_tokens: Test whether it s time to change tags .