v.0.1

vendor/symfony/console/Input/StringInput.php

@@ -0,0 +1,84 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Input;
+
+use Symfony\Component\Console\Exception\InvalidArgumentException;
+
+/**
+ * StringInput represents an input provided as a string.
+ *
+ * Usage:
+ *
+ *     $input = new StringInput('foo --bar="foobar"');
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class StringInput extends ArgvInput
+{
+    public const REGEX_STRING = '([^\s]+?)(?:\s|(?<!\\\\)"|(?<!\\\\)\'|$)';
+    public const REGEX_UNQUOTED_STRING = '([^\s\\\\]+?)';
+    public const REGEX_QUOTED_STRING = '(?:"([^"\\\\]*(?:\\\\.[^"\\\\]*)*)"|\'([^\'\\\\]*(?:\\\\.[^\'\\\\]*)*)\')';
+
+    /**
+     * @param string $input A string representing the parameters from the CLI
+     */
+    public function __construct(string $input)
+    {
+        parent::__construct([]);
+
+        $this->setTokens($this->tokenize($input));
+    }
+
+    /**
+     * Tokenizes a string.
+     *
+     * @throws InvalidArgumentException When unable to parse input (should never happen)
+     */
+    private function tokenize(string $input): array
+    {
+        $tokens = [];
+        $length = \strlen($input);
+        $cursor = 0;
+        $token = null;
+        while ($cursor < $length) {
+            if ('\\' === $input[$cursor]) {
+                $token .= $input[++$cursor] ?? '';
+                ++$cursor;
+                continue;
+            }
+
+            if (preg_match('/\s+/A', $input, $match, 0, $cursor)) {
+                if (null !== $token) {
+                    $tokens[] = $token;
+                    $token = null;
+                }
+            } elseif (preg_match('/([^="\'\s]+?)(=?)('.self::REGEX_QUOTED_STRING.'+)/A', $input, $match, 0, $cursor)) {
+                $token .= $match[1].$match[2].stripcslashes(str_replace(['"\'', '\'"', '\'\'', '""'], '', substr($match[3], 1, -1)));
+            } elseif (preg_match('/'.self::REGEX_QUOTED_STRING.'/A', $input, $match, 0, $cursor)) {
+                $token .= stripcslashes(substr($match[0], 1, -1));
+            } elseif (preg_match('/'.self::REGEX_UNQUOTED_STRING.'/A', $input, $match, 0, $cursor)) {
+                $token .= $match[1];
+            } else {
+                // should never happen
+                throw new InvalidArgumentException(sprintf('Unable to parse input near "... %s ...".', substr($input, $cursor, 10)));
+            }
+
+            $cursor += \strlen($match[0]);
+        }
+
+        if (null !== $token) {
+            $tokens[] = $token;
+        }
+
+        return $tokens;
+    }
+}