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<?php |
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|
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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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|
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namespace Symfony\Component\Console\Input; |
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|
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use Symfony\Component\Console\Exception\InvalidArgumentException; |
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|
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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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* $input = new StringInput('foo --bar="foobar"'); |
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* |
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* @author Fabien Potencier <fabien@symfony.com> |
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*/ |
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class StringInput extends ArgvInput |
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{ |
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public const REGEX_STRING = '([^\s]+?)(?:\s|(?<!\\\\)"|(?<!\\\\)\'|$)'; |
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public const REGEX_UNQUOTED_STRING = '([^\s\\\\]+?)'; |
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public const REGEX_QUOTED_STRING = '(?:"([^"\\\\]*(?:\\\\.[^"\\\\]*)*)"|\'([^\'\\\\]*(?:\\\\.[^\'\\\\]*)*)\')'; |
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|
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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(string $input) |
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{ |
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parent::__construct([]); |
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|
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$this->setTokens($this->tokenize($input)); |
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} |
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|
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/** |
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* Tokenizes a string. |
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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(string $input): array |
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{ |
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$tokens = []; |
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$length = \strlen($input); |
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$cursor = 0; |
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$token = null; |
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while ($cursor < $length) { |
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if ('\\' === $input[$cursor]) { |
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$token .= $input[++$cursor] ?? ''; |
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++$cursor; |
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continue; |
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} |
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|
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if (preg_match('/\s+/A', $input, $match, 0, $cursor)) { |
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if (null !== $token) { |
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$tokens[] = $token; |
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$token = null; |
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} |
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} elseif (preg_match('/([^="\'\s]+?)(=?)('.self::REGEX_QUOTED_STRING.'+)/A', $input, $match, 0, $cursor)) { |
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$token .= $match[1].$match[2].stripcslashes(str_replace(['"\'', '\'"', '\'\'', '""'], '', substr($match[3], 1, -1))); |
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} elseif (preg_match('/'.self::REGEX_QUOTED_STRING.'/A', $input, $match, 0, $cursor)) { |
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$token .= stripcslashes(substr($match[0], 1, -1)); |
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} elseif (preg_match('/'.self::REGEX_UNQUOTED_STRING.'/A', $input, $match, 0, $cursor)) { |
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$token .= $match[1]; |
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} else { |
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// should never happen |
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throw new InvalidArgumentException(sprintf('Unable to parse input near "... %s ...".', substr($input, $cursor, 10))); |
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} |
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|
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$cursor += \strlen($match[0]); |
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} |
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|
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if (null !== $token) { |
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$tokens[] = $token; |
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} |
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|
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return $tokens; |
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} |
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} |
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|
