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<?php |
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namespace Recca0120\Terminal; |
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/** |
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* ProcessUtils is a bunch of utility methods. |
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* |
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* This class was originally copied from Symfony 3. |
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*/ |
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class ProcessUtils |
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{ |
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/** |
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* Escapes a string to be used as a shell argument. |
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* |
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* @param string $argument |
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* @return string |
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*/ |
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public static function escapeArgument($argument) |
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{ |
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// Fix for PHP bug #43784 escapeshellarg removes % from given string |
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// Fix for PHP bug #49446 escapeshellarg doesn't work on Windows |
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// @see https://bugs.php.net/bug.php?id=43784 |
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// @see https://bugs.php.net/bug.php?id=49446 |
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if ('\\' === DIRECTORY_SEPARATOR) { |
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if ('' === $argument) { |
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return '""'; |
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} |
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$escapedArgument = ''; |
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$quote = false; |
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foreach (preg_split('/(")/', $argument, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE) as $part) { |
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if ('"' === $part) { |
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$escapedArgument .= '\\"'; |
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} elseif (self::isSurroundedBy($part, '%')) { |
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// Avoid environment variable expansion |
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$escapedArgument .= '^%"'.substr($part, 1, -1).'"^%'; |
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} else { |
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// escape trailing backslash |
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if ('\\' === substr($part, -1)) { |
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$part .= '\\'; |
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} |
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$quote = true; |
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$escapedArgument .= $part; |
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} |
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} |
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if ($quote) { |
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$escapedArgument = '"'.$escapedArgument.'"'; |
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} |
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return $escapedArgument; |
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} |
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return "'".str_replace("'", "'\\''", $argument)."'"; |
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} |
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/** |
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* Is the given string surrounded by the given character? |
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* |
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* @param string $arg |
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* @param string $char |
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* @return bool |
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*/ |
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protected static function isSurroundedBy($arg, $char) |
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{ |
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return 2 < strlen($arg) && $char === $arg[0] && $char === $arg[strlen($arg) - 1]; |
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} |
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} |
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