include/libs/template_lite/class.config.php

   1 <?php
   2 /*
   3  * Project:     template_lite, a smarter template engine
   4  * File:        class.config.php
   5  * Author:      Paul Lockaby <paul@paullockaby.com>, Mark Dickenson <akapanamajack@sourceforge.net>
   6  * Copyright:   2003,2004,2005 by Paul Lockaby, 2005,2006 Mark Dickenson
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  * The latest version of template_lite can be obtained from:
  23  * http://templatelite.sourceforge.net
  24  *
  25  */
  26
  27 class config {
  28         var $overwrite                  = false;        // overwrite variables of the same name? if false, an array will be created
  29         var $booleanize                 = true;         // turn true/false, yes/no, on/off, into 1/0
  30         var $fix_new_lines              = true;         // turns \r\n into \n?
  31         var $read_hidden                = true;         // read hidden sections?
  32
  33         var $_db_qstr_regexp            = null;
  34         var $_bool_true_regexp          = null;
  35         var $_bool_false_regexp         = null;
  36         var $_qstr_regexp               = null;
  37
  38         function config()
  39         {
  40                 $this->_db_qstr_regexp = '"[^"\\\\]*(?:\\\\.[^"\\\\]*)*"';
  41                 $this->_bool_true_regexp = 'true|yes|on';
  42                 $this->_bool_false_regexp = 'false|no|off';
  43                 $this->_qstr_regexp = '(?:' . $this->_db_qstr_regexp . '|' . $this->_bool_true_regexp . '|' . $this->_bool_false_regexp . ')';
  44         }
  45
  46         function config_load($file, $section_name = null, $var_name = null)
  47         {
  48                 $_result = array();
  49                 $contents = file_get_contents($file);
  50                 if (empty($contents))
  51                 {
  52                         die("Could not open $file");
  53                 }
  54
  55                 // insert new line into beginning of file
  56                 $contents = "\n" . $contents;
  57                 // fix new-lines
  58                 if ($this->fix_new_lines)
  59                 {
  60                         $contents = str_replace("\r\n","\n",$contents);
  61                 }
  62
  63                 // match globals
  64                 if (preg_match("/^(.*?)(\n\[|\Z)/s", $contents, $match))
  65                 {
  66                         $_result["globals"] = $this->_parse_config_section($match[1]);
  67                 }
  68
  69                 // match sections
  70                 if (preg_match_all("/^\[(.*?)\]/m", $contents, $match))
  71                 {
  72                         foreach ($match[1] as $section)
  73                         {
  74                                 if ($section{0} == '.' && !$this->read_hidden)
  75                                 {
  76                                         continue;
  77                                 }
  78                                 preg_match("/\[".preg_quote($section)."\](.*?)(\n\[|\Z)/s",$contents,$match);
  79                                 if ($section{0} == '.')
  80                                 {
  81                                         $section = substr($section, 1);
  82                                 }
  83                                 $_result[$section] = $this->_parse_config_section($match[1]);
  84                         }
  85                 }
  86
  87
  88                 if (!empty($var_name))
  89                 {
  90                         if (empty($section_name))
  91                         {
  92                                 return $_result["globals"][$var_name];
  93                         }
  94                         else
  95                         {
  96                                 if(isset($_result[$section_name][$var_name]))
  97                                 {
  98                                         return $_result[$section_name][$var_name];
  99                                 }
 100                                 else
 101                                 {
 102                                         return array();
 103                                 }
 104                         }
 105                 }
 106                 else
 107                 {
 108                         if (empty($section_name))
 109                         {
 110                                 return $_result;
 111                         }
 112                         else
 113                         {
 114                                 if(isset($_result[$section_name]))
 115                                 {
 116                                         return $_result[$section_name];
 117                                 }
 118                                 else
 119                                 {
 120                                         return array();
 121                                 }
 122                         }
 123                 }
 124         }
 125
 126         function _parse_config_section($body)
 127         {
 128                 $_result = array();
 129                 preg_match_all('!(\n\s*[a-zA-Z0-9_]+)\s*=\s*(' . $this->_qstr_regexp . ')!s', $body, $ini);
 130                 $keys = $ini[1];
 131                 $values = $ini[2];
 132                 for($i = 0, $for_max = count($ini[0]); $i < $for_max; $i++)
 133                 {
 134                         if ($this->booleanize)
 135                         {
 136                                 if (preg_match('/^(' . $this->_bool_true_regexp . ')$/i', $values[$i]))
 137                                 {
 138                                         $values[$i] = true;
 139                                 }
 140                                 elseif (preg_match('/^(' . $this->_bool_false_regexp . ')$/i', $values[$i]))
 141                                 {
 142                                         $values[$i] = false;
 143                                 }
 144                         }
 145                         if (!is_numeric($values[$i]) && !is_bool($values[$i]))
 146                         {
 147                                 $values[$i] = str_replace("\n",'',stripslashes(substr($values[$i], 1, -1)));
 148                         }
 149                         if ($this->overwrite || !isset($_result[trim($keys[$i])]))
 150                         {
 151                                 $_result[trim($keys[$i])] = $values[$i];
 152                         }
 153                         else
 154                         {
 155                                 if (!is_array($_result[trim($keys[$i])]))
 156                                 {
 157                                         $_result[trim($keys[$i])] = array($_result[trim($keys[$i])]);
 158                                 }
 159                                 $_result[trim($keys[$i])][] = $values[$i];
 160                         }
 161                 }
 162                 return $_result;
 163         }
 164 }
 165 ?>