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