Security update for permissions_by_term

[yaffs-website] / vendor / behat / behat / src / Behat / Behat / Definition / Pattern / Policy / TurnipPatternPolicy.php

diff --git a/vendor/behat/behat/src/Behat/Behat/Definition/Pattern/Policy/TurnipPatternPolicy.php b/vendor/behat/behat/src/Behat/Behat/Definition/Pattern/Policy/TurnipPatternPolicy.php
new file mode 100644 (file)
index 0000000..c073268
--- /dev/null
+++ b/vendor/behat/behat/src/Behat/Behat/Definition/Pattern/Policy/TurnipPatternPolicy.php
@@ -0,0 +1,212 @@
+<?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\Pattern\Pattern;
+use Behat\Behat\Definition\Exception\InvalidPatternException;
+use Behat\Transliterator\Transliterator;
+
+/**
+ * Defines a way to handle turnip patterns.
+ *
+ * @author Konstantin Kudryashov <ever.zet@gmail.com>
+ */
+final class TurnipPatternPolicy implements PatternPolicy
+{
+    const TOKEN_REGEX = "[\"']?(?P<%s>(?<=\")[^\"]*(?=\")|(?<=')[^']*(?=')|\-?[\w\.\,]+)['\"]?";
+
+    const PLACEHOLDER_REGEXP = "/\\\:(\w+)/";
+    const OPTIONAL_WORD_REGEXP = '/(\s)?\\\\\(([^\\\]+)\\\\\)(\s)?/';
+    const ALTERNATIVE_WORD_REGEXP = '/(\w+)\\\\\/(\w+)/';
+
+    /**
+     * @var string[]
+     */
+    private $regexCache = array();
+
+    /**
+     * @var string[]
+     */
+    private static $placeholderPatterns = array(
+        "/(?<!\w)\"[^\"]+\"(?!\w)/",
+        "/(?<!\w)'[^']+'(?!\w)/",
+        "/(?<!\w|\.|\,)\-?\d+(?:[\.\,]\d+)?(?!\w|\.|\,)/"
+    );
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supportsPatternType($type)
+    {
+        return null === $type || 'turnip' === $type;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function generatePattern($stepText)
+    {
+        $count = 0;
+        $pattern = $stepText;
+        foreach (self::$placeholderPatterns as $replacePattern) {
+            $pattern = preg_replace_callback(
+                $replacePattern,
+                function () use (&$count) { return ':arg' . ++$count; },
+                $pattern
+            );
+        }
+        $pattern = $this->escapeAlternationSyntax($pattern);
+        $canonicalText = $this->generateCanonicalText($stepText);
+
+        return new Pattern($canonicalText, $pattern, $count);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supportsPattern($pattern)
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function transformPatternToRegex($pattern)
+    {
+        if (!isset($this->regexCache[$pattern])) {
+            $this->regexCache[$pattern] = $this->createTransformedRegex($pattern);
+        }
+        return $this->regexCache[$pattern];
+    }
+
+    /**
+     * @param string $pattern
+     * @return string
+     */
+    private function createTransformedRegex($pattern)
+    {
+        $regex = preg_quote($pattern, '/');
+
+        $regex = $this->replaceTokensWithRegexCaptureGroups($regex);
+        $regex = $this->replaceTurnipOptionalEndingWithRegex($regex);
+        $regex = $this->replaceTurnipAlternativeWordsWithRegex($regex);
+
+        return '/^' . $regex . '$/i';
+    }
+
+    /**
+     * Generates canonical text for step text.
+     *
+     * @param string $stepText
+     *
+     * @return string
+     */
+    private function generateCanonicalText($stepText)
+    {
+        $canonicalText = preg_replace(self::$placeholderPatterns, '', $stepText);
+        $canonicalText = Transliterator::transliterate($canonicalText, ' ');
+        $canonicalText = preg_replace('/[^a-zA-Z\_\ ]/', '', $canonicalText);
+        $canonicalText = str_replace(' ', '', ucwords($canonicalText));
+
+        return $canonicalText;
+    }
+
+    /**
+     * Replaces turnip tokens with regex capture groups.
+     *
+     * @param string $regex
+     *
+     * @return string
+     */
+    private function replaceTokensWithRegexCaptureGroups($regex)
+    {
+        $tokenRegex = self::TOKEN_REGEX;
+
+        return preg_replace_callback(
+            self::PLACEHOLDER_REGEXP,
+            array($this, 'replaceTokenWithRegexCaptureGroup'),
+            $regex
+        );
+    }
+
+    private function replaceTokenWithRegexCaptureGroup($tokenMatch)
+    {
+        if (strlen($tokenMatch[1]) >= 32) {
+            throw new InvalidPatternException(
+                "Token name should not exceed 32 characters, but `{$tokenMatch[1]}` was used."
+            );
+        }
+
+        return sprintf(self::TOKEN_REGEX, $tokenMatch[1]);
+    }
+
+    /**
+     * Replaces turnip optional ending with regex non-capturing optional group.
+     *
+     * @param string $regex
+     *
+     * @return string
+     */
+    private function replaceTurnipOptionalEndingWithRegex($regex)
+    {
+        return preg_replace(self::OPTIONAL_WORD_REGEXP, '(?:\1)?(?:\2)?(?:\3)?', $regex);
+    }
+
+    /**
+     * Replaces turnip alternative words with regex non-capturing alternating group.
+     *
+     * @param string $regex
+     *
+     * @return string
+     */
+    private function replaceTurnipAlternativeWordsWithRegex($regex)
+    {
+        $regex = preg_replace(self::ALTERNATIVE_WORD_REGEXP, '(?:\1|\2)', $regex);
+        $regex = $this->removeEscapingOfAlternationSyntax($regex);
+
+        return $regex;
+    }
+
+    /**
+     * Adds escaping to alternation syntax in pattern.
+     *
+     * By default, Turnip treats `/` as alternation syntax. Meaning `one/two` for Turnip
+     * means either `one` or `two`. Sometimes though you'll want to use slash character
+     * with different purpose (URL, UNIX paths). In this case, you would escape slashes
+     * with backslash.
+     *
+     * This method adds escaping to all slashes in generated snippets.
+     *
+     * @param string $pattern
+     *
+     * @return string
+     */
+    private function escapeAlternationSyntax($pattern)
+    {
+        return str_replace('/', '\/', $pattern);
+    }
+
+    /**
+     * Removes escaping of alternation syntax from regex.
+     *
+     * This method removes those escaping backslashes from your slashes, so your steps
+     * could be matched against your escaped definitions.
+     *
+     * @param string $regex
+     *
+     * @return string
+     */
+    private function removeEscapingOfAlternationSyntax($regex)
+    {
+        return str_replace('\\\/', '/', $regex);
+    }
+}