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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php
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namespace Illuminate\Support;
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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 (str_ends_with($part, '\\')) {
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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, $char)
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    {
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        return strlen($arg) > 2 && $char === $arg[0] && $char === $arg[strlen($arg) - 1];
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    }
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}