Cerbere\Parser\Ini

Complexity

Total Complexity

13

Size/Duplication

Total Lines	113
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	0

Importance

Changes	2
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
C	parseContent()	0	62	12
A	processFile()	0	6	1

<?php

/**
 * Drush Cerbere command line tools.
 * Copyright (C) 2015 - Sebastien Malot <sebastien@malot.fr>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

namespace Cerbere\Parser;

/**
 * Class Ini
 * @package Cerbere\Parser
 */
abstract class Ini implements ParserInterface
{
    /**
     * Parses data in Drupal's .info format.
     *
     * Data should be in an .ini-like format to specify values. White-space
     * generally doesn't matter, except inside values:
     *
     * @code
     *      key = value
     *      key = "value"
     *      key = 'value'
     *      key = "multi-line
     *      value"
     *      key = 'multi-line
     *      value'
     *      key
     *      =
     *      'value'
     * @endcode
     *
     * Arrays are created using a HTTP GET alike syntax:
     * @code
     *   key[] = "numeric array"
     *   key[index] = "associative array"
     *   key[index][] = "nested numeric array"
     *   key[index][index] = "nested associative array"
     * @endcode
     *
     * PHP constants are substituted in, but only when used as the entire value.
     * Comments should start with a semi-colon at the beginning of a line.
     *
     * @param string $data
     *   A string to parse.
     *
     * @return array
     *   The info array.
     *
     * @see drupal_parse_info_file()
     */
    protected function parseContent($data)
    {
        $info = array();

        if (preg_match_all(
          '
    @^\s*                           # Start at the beginning of a line, ignoring leading whitespace
    ((?:
      [^=;\[\]]|                    # Key names cannot contain equal signs, semi-colons or square brackets,
      \[[^\[\]]*\]                  # unless they are balanced and not nested
    )+?)
    \s*=\s*                         # Key/value pairs are separated by equal signs (ignoring white-space)
    (?:
      ("(?:[^"]|(?<=\\\\)")*")|     # Double-quoted string, which may contain slash-escaped quotes/slashes
      (\'(?:[^\']|(?<=\\\\)\')*\')| # Single-quoted string, which may contain slash-escaped quotes/slashes
      ([^\r\n]*?)                   # Non-quoted string
    )\s*$                           # Stop at the next end of a line, ignoring trailing whitespace
    @msx',
          $data,
          $matches,
          PREG_SET_ORDER
        )) {
            foreach ($matches as $match) {
                // Fetch the key and value string.
                $i = 0;
                $key = $value1 = $value2 = $value3 = '';
                foreach (array('key', 'value1', 'value2', 'value3') as $var) {
                    $$var = isset($match[++$i]) ? $match[$i] : '';
                }
                $value = stripslashes(substr($value1, 1, -1)) . stripslashes(substr($value2, 1, -1)) . $value3;

                // Parse array syntax.
                $keys = preg_split('/\]?\[/', rtrim($key, ']'));
                $last = array_pop($keys);
                $parent = &$info;

                // Create nested arrays.
                foreach ($keys as $key) {
                    if ($key == '') {
                        $key = count($parent);
                    }
                    if (!isset($parent[$key]) || !is_array($parent[$key])) {
                        $parent[$key] = array();
                    }
                    $parent = &$parent[$key];
                }

                // Handle PHP constants.
                if (preg_match('/^\w+$/i', $value) && defined($value)) {
                    $value = constant($value);
                }

                // Insert actual value.
                if ($last == '') {
                    $last = count($parent);
                }
                $parent[$last] = $value;
            }
        }

        return $info;
    }

    /**
     * @param string $filename
     */
    public function processFile($filename)
    {
        $content = file_get_contents($filename);

        $this->processContent($content);
    }
}