public static function CustomFilterBaseFilter::applyRules in Custom filter 2.0.x
Same name and namespace in other branches
- 8 src/Plugin/Filter/CustomFilterBaseFilter.php \Drupal\customfilter\Plugin\Filter\CustomFilterBaseFilter::applyRules()
Replace the text using rules.
Parameters
array $matches: The text match by regular expression.
Return value
string The text after rules have beem apply.
File
- src/
Plugin/ Filter/ CustomFilterBaseFilter.php, line 97
Class
- CustomFilterBaseFilter
- Provides a base filter for Custom Filter.
Namespace
Drupal\customfilter\Plugin\FilterCode
public static function applyRules(array $matches) {
$globals =& static::getGlobals();
$result = $matches[0];
$rule = end($globals->stack);
$code = $rule['code'];
$pattern = $rule['pattern'];
$replacement = $rule['replacement'];
if (is_array($sub = $rule['sub']) && count($sub)) {
foreach ($sub as $subrule) {
if ($subrule['enabled']) {
$globals->stack[] = $subrule;
$substr =& $matches[$subrule['matches']];
$substr = preg_replace_callback($subrule['pattern'], [
CustomFilterBaseFilter::class,
'applyRules',
], $substr);
array_pop($globals->stack);
}
}
if ($code) {
CustomFilterBaseFilter::replaceCallback($replacement, TRUE);
$result = CustomFilterBaseFilter::replaceCallback($matches);
}
else {
$result = $replacement;
$rmatches = [];
$reps = [];
preg_match_all('/([^\\\\]|^)(\\$([0-9]{1,2}|\\{([0-9]{1,2})\\}))/', $replacement, $rmatches, PREG_OFFSET_CAPTURE | PREG_UNMATCHED_AS_NULL);
foreach ($rmatches[4] as $key => $val) {
if ($val == '') {
$index = $rmatches[3][$key][0];
}
else {
// To support PHP7.4: see [#3151616].
$index = $rmatches[4][$key][1] != -1 ? $rmatches[4][$key][0] : $rmatches[3][$key][0];
}
$offset = $rmatches[2][$key][1];
$length = strlen($rmatches[2][$key][0]);
$reps[] = [
'index' => intval($index),
'offset' => $offset,
'length' => $length,
];
}
krsort($reps);
foreach ($reps as $rep) {
$result = substr_replace($result, $matches[$rep['index']], $rep['offset'], $rep['length']);
}
}
}
elseif ($code) {
CustomFilterBaseFilter::replaceCallback($replacement, TRUE);
$result = preg_replace_callback($pattern, [
CustomFilterBaseFilter::class,
'replaceCallback',
], $result);
}
else {
$result = preg_replace($pattern, $replacement, $result);
}
return $result;
}