<?php
/**
 * PHPUnit
 *
 * Copyright (c) 2001-2014, Sebastian Bergmann <sebastian@phpunit.de>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *
 *   * Neither the name of Sebastian Bergmann nor the names of his
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @package    PHPUnit
 * @subpackage Framework_Constraint
 * @author     Sebastian Bergmann <sebastian@phpunit.de>
 * @author     Bernhard Schussek <bschussek@2bepublished.at>
 * @copyright  2001-2014 Sebastian Bergmann <sebastian@phpunit.de>
 * @license    http://www.opensource.org/licenses/BSD-3-Clause  The BSD 3-Clause License
 * @link       http://www.phpunit.de/
 * @since      File available since Release 3.5.0
 */

use SebastianBergmann\Diff\Differ;

/**
 * ...
 *
 * @package    PHPUnit
 * @subpackage Framework_Constraint
 * @author     Sebastian Bergmann <sebastian@phpunit.de>
 * @author     Bernhard Schussek <bschussek@2bepublished.at>
 * @copyright  2001-2014 Sebastian Bergmann <sebastian@phpunit.de>
 * @license    http://www.opensource.org/licenses/BSD-3-Clause  The BSD 3-Clause License
 * @link       http://www.phpunit.de/
 * @since      Class available since Release 3.5.0
 */
class PHPUnit_Framework_Constraint_StringMatches extends PHPUnit_Framework_Constraint_PCREMatch
{
    /**
     * @var string
     */
    protected $string;

    /**
     * @param string $string
     */
    public function __construct($string)
    {
        parent::__construct($string);

        $this->pattern = $this->createPatternFromFormat(
            preg_replace('/\r\n/', "\n", $string)
        );

        $this->string = $string;
    }

    protected function failureDescription($other)
    {
        return "format description matches text";
    }

    protected function additionalFailureDescription($other)
    {
        $from = preg_split('(\r\n|\r|\n)', $this->string);
        $to   = preg_split('(\r\n|\r|\n)', $other);

        foreach ($from as $index => $line) {
            if (isset($to[$index]) && $line !== $to[$index]) {
                $line = $this->createPatternFromFormat($line);

                if (preg_match($line, $to[$index]) > 0) {
                    $from[$index] = $to[$index];
                }
            }
        }

        $this->string = join("\n", $from);
        $other        = join("\n", $to);

        $differ = new Differ("--- Expected\n+++ Actual\n");

        return $differ->diff($this->string, $other);
    }

    protected function createPatternFromFormat($string)
    {
        $string = str_replace(
          array(
            '%e',
            '%s',
            '%S',
            '%a',
            '%A',
            '%w',
            '%i',
            '%d',
            '%x',
            '%f',
            '%c'
          ),
          array(
            '\\' . DIRECTORY_SEPARATOR,
            '[^\r\n]+',
            '[^\r\n]*',
            '.+',
            '.*',
            '\s*',
            '[+-]?\d+',
            '\d+',
            '[0-9a-fA-F]+',
            '[+-]?\.?\d+\.?\d*(?:[Ee][+-]?\d+)?',
            '.'
          ),
          preg_quote($string, '/')
        );

        return '/^' . $string . '$/s';
    }

}
