+++ /dev/null
-<?php
-
-/*
- * This file is part of the Behat.
- * (c) Konstantin Kudryashov <ever.zet@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Behat\Behat\Definition\Pattern\Policy;
-
-use Behat\Behat\Definition\Exception\InvalidPatternException;
-use Behat\Behat\Definition\Pattern\Pattern;
-use Behat\Transliterator\Transliterator;
-
-/**
- * Defines a way to handle regex patterns.
- *
- * @author Konstantin Kudryashov <ever.zet@gmail.com>
- */
-final class RegexPatternPolicy implements PatternPolicy
-{
- /**
- * @var string[string]
- */
- private static $replacePatterns = array(
- "/(?<=\W|^)\\\'(?:((?!\\').)*)\\\'(?=\W|$)/" => "'([^']*)'", // Single quoted strings
- '/(?<=\W|^)\"(?:[^\"]*)\"(?=\W|$)/' => "\"([^\"]*)\"", // Double quoted strings
- '/(?<=\W|^)(\d+)(?=\W|$)/' => "(\\d+)", // Numbers
- );
-
- /**
- * {@inheritdoc}
- */
- public function supportsPatternType($type)
- {
- return 'regex' === $type;
- }
-
- /**
- * {@inheritdoc}
- */
- public function generatePattern($stepText)
- {
- $canonicalText = $this->generateCanonicalText($stepText);
- $stepRegex = $this->generateRegex($stepText);
- $placeholderCount = $this->countPlaceholders($stepText, $stepRegex);
-
- return new Pattern($canonicalText, '/^' . $stepRegex . '$/', $placeholderCount);
- }
-
- /**
- * {@inheritdoc}
- */
- public function supportsPattern($pattern)
- {
- return (bool) preg_match('/^(?:\\{.*\\}|([~\\/#`]).*\1)[imsxADSUXJu]*$/s', $pattern);
- }
-
- /**
- * {@inheritdoc}
- */
- public function transformPatternToRegex($pattern)
- {
- if (false === @preg_match($pattern, 'anything')) {
- $error = error_get_last();
- $errorMessage = isset($error['message']) ? $error['message'] : '';
-
- throw new InvalidPatternException(sprintf('The regex `%s` is invalid: %s', $pattern, $errorMessage));
- }
-
- return $pattern;
- }
-
- /**
- * Generates regex from step text.
- *
- * @param string $stepText
- *
- * @return string
- */
- private function generateRegex($stepText)
- {
- return preg_replace(
- array_keys(self::$replacePatterns),
- array_values(self::$replacePatterns),
- $this->escapeStepText($stepText)
- );
- }
-
- /**
- * Generates canonical text for step text.
- *
- * @param string $stepText
- *
- * @return string
- */
- private function generateCanonicalText($stepText)
- {
- $canonicalText = preg_replace(array_keys(self::$replacePatterns), '', $stepText);
- $canonicalText = Transliterator::transliterate($canonicalText, ' ');
- $canonicalText = preg_replace('/[^a-zA-Z\_\ ]/', '', $canonicalText);
- $canonicalText = str_replace(' ', '', ucwords($canonicalText));
-
- return $canonicalText;
- }
-
- /**
- * Counts regex placeholders using provided text.
- *
- * @param string $stepText
- * @param string $stepRegex
- *
- * @return integer
- */
- private function countPlaceholders($stepText, $stepRegex)
- {
- preg_match('/^' . $stepRegex . '$/', $stepText, $matches);
-
- return count($matches) ? count($matches) - 1 : 0;
- }
-
- /**
- * Returns escaped step text.
- *
- * @param string $stepText
- *
- * @return string
- */
- private function escapeStepText($stepText)
- {
- return preg_replace('/([\/\[\]\(\)\\\^\$\.\|\?\*\+\'])/', '\\\\$1', $stepText);
- }
-}