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Classes

  • NConfigIniAdapter
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  1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (http://nette.org)
  5:  *
  6:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
  7:  *
  8:  * For the full copyright and license information, please view
  9:  * the file license.txt that was distributed with this source code.
 10:  * @package Nette\Config\Adapters
 11:  */
 12: 
 13: 
 14: 
 15: /**
 16:  * Reading and generating INI files.
 17:  *
 18:  * @author     David Grudl
 19:  * @package Nette\Config\Adapters
 20:  */
 21: class NConfigIniAdapter extends NObject implements IConfigAdapter
 22: {
 23:     /** @internal */
 24:     const INHERITING_SEPARATOR = '<', // child < parent
 25:         KEY_SEPARATOR = '.', // key nesting key1.key2.key3
 26:         ESCAPED_KEY_SEPARATOR = '..',
 27:         RAW_SECTION = '!';
 28: 
 29: 
 30:     /**
 31:      * Reads configuration from INI file.
 32:      * @param  string  file name
 33:      * @return array
 34:      * @throws InvalidStateException
 35:      */
 36:     public function load($file)
 37:     {
 38:         set_error_handler(create_function('$severity, $message', ' // parse_ini_file returns FALSE on failure since PHP 5.2.7
 39:             restore_error_handler();
 40:             throw new InvalidStateException("parse_ini_file(): $message");
 41:         '));
 42:         $ini = parse_ini_file($file, TRUE);
 43:         restore_error_handler();
 44: 
 45:         $data = array();
 46:         foreach ($ini as $secName => $secData) {
 47:             if (is_array($secData)) { // is section?
 48:                 if (substr($secName, -1) === self::RAW_SECTION) {
 49:                     $secName = substr($secName, 0, -1);
 50:                 } else { // process key nesting separator (key1.key2.key3)
 51:                     $tmp = array();
 52:                     foreach ($secData as $key => $val) {
 53:                         $cursor = & $tmp;
 54:                         $key = str_replace(self::ESCAPED_KEY_SEPARATOR, "\xFF", $key);
 55:                         foreach (explode(self::KEY_SEPARATOR, $key) as $part) {
 56:                             $part = str_replace("\xFF", self::KEY_SEPARATOR, $part);
 57:                             if (!isset($cursor[$part]) || is_array($cursor[$part])) {
 58:                                 $cursor = & $cursor[$part];
 59:                             } else {
 60:                                 throw new InvalidStateException("Invalid key '$key' in section [$secName] in file '$file'.");
 61:                             }
 62:                         }
 63:                         $cursor = $val;
 64:                     }
 65:                     $secData = $tmp;
 66:                 }
 67: 
 68:                 $parts = explode(self::INHERITING_SEPARATOR, $secName);
 69:                 if (count($parts) > 1) {
 70:                     $secName = trim($parts[0]);
 71:                     $secData[NConfigHelpers::EXTENDS_KEY] = trim($parts[1]);
 72:                 }
 73:             }
 74: 
 75:             $cursor = & $data; // nesting separator in section name
 76:             foreach (explode(self::KEY_SEPARATOR, $secName) as $part) {
 77:                 if (!isset($cursor[$part]) || is_array($cursor[$part])) {
 78:                     $cursor = & $cursor[$part];
 79:                 } else {
 80:                     throw new InvalidStateException("Invalid section [$secName] in file '$file'.");
 81:                 }
 82:             }
 83: 
 84:             if (is_array($secData) && is_array($cursor)) {
 85:                 $secData = NConfigHelpers::merge($secData, $cursor);
 86:             }
 87: 
 88:             $cursor = $secData;
 89:         }
 90: 
 91:         return $data;
 92:     }
 93: 
 94: 
 95:     /**
 96:      * Generates configuration in INI format.
 97:      * @return string
 98:      */
 99:     public function dump(array $data)
100:     {
101:         $output = array();
102:         foreach ($data as $name => $secData) {
103:             if (!is_array($secData)) {
104:                 $output = array();
105:                 self::build($data, $output, '');
106:                 break;
107:             }
108:             if ($parent = NConfigHelpers::takeParent($secData)) {
109:                 $output[] = "[$name " . self::INHERITING_SEPARATOR . " $parent]";
110:             } else {
111:                 $output[] = "[$name]";
112:             }
113:             self::build($secData, $output, '');
114:             $output[] = '';
115:         }
116:         return "; generated by Nette\n\n" . implode(PHP_EOL, $output);
117:     }
118: 
119: 
120:     /**
121:      * Recursive builds INI list.
122:      * @return void
123:      */
124:     private static function build($input, & $output, $prefix)
125:     {
126:         foreach ($input as $key => $val) {
127:             $key = str_replace(self::KEY_SEPARATOR, self::ESCAPED_KEY_SEPARATOR, $key);
128:             if (is_array($val)) {
129:                 self::build($val, $output, $prefix . $key . self::KEY_SEPARATOR);
130: 
131:             } elseif (is_bool($val)) {
132:                 $output[] = "$prefix$key = " . ($val ? 'true' : 'false');
133: 
134:             } elseif (is_numeric($val)) {
135:                 $output[] = "$prefix$key = $val";
136: 
137:             } elseif (is_string($val)) {
138:                 $output[] = "$prefix$key = \"$val\"";
139: 
140:             } else {
141:                 throw new InvalidArgumentException("The '$prefix$key' item must be scalar or array, " . gettype($val) ." given.");
142:             }
143:         }
144:     }
145: 
146: }
147: 
Nette Framework 2.0.12 (for PHP 5.2, prefixed) API API documentation generated by ApiGen 2.8.0