public static function preprocessorFilterCb($matches)
{
if (!isset($matches[0]) || !isset($matches[0][0])) {
return '';
// shouldn't ever happen
}
if ($matches[0][0] === '"') {
return Utils::tagBlock('STRING', $matches[0]);
} elseif ($matches[0][0] === '&') {
return '<' . Utils::tagBlock('STRING', $matches[1]) . '>';
} else {
return Utils::tagBlock('COMMENT', $matches[0]);
}
}
/**
* @brief Returns the XML representation of the token stream
*
* This function triggers the generation of the XML output.
* @return An XML-string which represents the tokens recorded by the scanner.
*/
public function tagged()
{
$out = '';
// call stream filters.
foreach ($this->streamFilters as $f) {
$this->tokens = call_user_func($f[1], $this->tokens);
}
foreach ($this->tokens as $t) {
$type = $t[0];
// speed is roughly 10% faster if we process the filters inside this
// loop instead of separately.
if (isset($this->filters[$type])) {
foreach ($this->filters[$type] as $filter) {
$t = call_user_func($filter[1], $t);
}
}
list($type, $string, $esc) = $t;
if (!$esc) {
$string = Utils::escapeString($string);
}
if ($type !== null) {
$out .= Utils::tagBlock($type, $string);
} else {
$out .= $string;
}
}
return $out;
}
/**
* Recursive function to collapse the token tree into XML
* @internal
*/
protected function collapseTokenTree($node)
{
$text = '';
foreach ($node['children'] as $c) {
if (is_string($c)) {
$text .= Utils::escapeString($c);
} else {
$text .= $this->collapseTokenTree($c);
}
}
$tokenName = $node['token_name'];
$token = array($node['token_name'], $text, true);
$token_ = $this->ruleMapperFilter(array($token));
$token = $token_[0];
if (isset($this->filters[$tokenName])) {
foreach ($this->filters[$tokenName] as $filter) {
$token = call_user_func($filter[1], $token);
}
}
list($tokenName, $text, ) = $token;
return $tokenName === null ? $text : Utils::tagBlock($tokenName, $text);
}
