PhabricatorRepositoryTransactionType.php
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PhabricatorRepositoryTransactionType.php
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	<?php

	abstract class PhabricatorRepositoryTransactionType
	extends PhabricatorModularTransactionType {

	protected function validateRefList($object, array $xactions) {
	$errors = array();

	foreach ($xactions as $xaction) {
	foreach ($xaction->getNewValue() as $pattern) {
	// Check for invalid regular expressions.
	$regexp = PhabricatorRepository::extractBranchRegexp($pattern);
	if ($regexp !== null) {
	$ok = @preg_match($regexp, '');
	if ($ok === false) {
	$errors[] = $this->newInvalidError(
	pht(
	'Expression "%s" is not a valid regular expression. Note '.
	'that you must include delimiters.',
	$regexp),
	$xaction);
	continue;
	}
	}

	// Check for formatting mistakes like `regex(...)` instead of
	// `regexp(...)`.
	$matches = null;
	if (preg_match('/^([^(]+)\$.*\$\z/', $pattern, $matches)) {
	switch ($matches[1]) {
	case 'regexp':
	break;
	default:
	$errors[] = $this->newInvalidError(
	pht(
	'Matching function "%s(...)" is not recognized. Valid '.
	'functions are: regexp(...).',
	$matches[1]),
	$xaction);
	break;
	}
	}
	}
	}

	return $errors;
	}

	}