PHPTAL-NP-0.7.0/libs/Types.php

   1 <?php
   2 /* vim: set expandtab tabstop=4 shiftwidth=4: */
   3 //
   4 //  Copyright (c) 2003 Laurent Bedubourg
   5 //
   6 //  This library is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU Lesser General Public
   8 //  License as published by the Free Software Foundation; either
   9 //  version 2.1 of the License, or (at your option) any later version.
  10 //
  11 //  This library is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 //  Lesser General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU Lesser General Public
  17 //  License along with this library; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 //
  20 //  Authors: Laurent Bedubourg <laurent.bedubourg@free.fr>
  21 //
  22
  23 /**
  24  * Static class used in common types internals.
  25  *
  26  * @static
  27  * @author Laurent Bedubourg <laurent.bedubourg@free.fr>
  28  */
  29 class Types
  30 {
  31     /**
  32      * Generate a string representation of specified variable.
  33      *
  34      * @param mixed $var -- variable to represent in a string form.
  35      * @static
  36      */
  37     function toString(&$var)
  38     {
  39         if (is_object($var)) {
  40             return Types::_objToString($var);
  41         } elseif (is_array($var)) {
  42             if (array_key_exists(0, $var) || count($var) == 0) {
  43                 return Types::_arrayToString($var);
  44             } else {
  45                 return Types::_hashToString($var);
  46             }
  47         } elseif (is_resource($var)) {
  48             return '#'.gettype($var).'#';
  49         }
  50         return $var;
  51     }
  52
  53     /**
  54      * Generate a string representation of an object calling its toString
  55      * method of using its class name.
  56      *
  57      * @access protected
  58      * @static
  59      */
  60     function _objToString(&$var)
  61     {
  62         if (method_exists($var, "toString")) {
  63             return $var->toString();
  64         } else {
  65             return '<' . get_class($var) . ' instance>';
  66         }
  67     }
  68
  69     /**
  70      * Generate a string representation of a php array.
  71      *
  72      * @access protected
  73      * @static
  74      */
  75     function _arrayToString(&$var)
  76     {
  77         $values = array();
  78         foreach ($var as $val) {
  79             $values[] = Types::toString($val);
  80         }
  81         return '[' . join(', ', $values) . ']';
  82     }
  83
  84     /**
  85      * Generate a string representation of an associative array.
  86      *
  87      * @access protected
  88      * @static
  89      */
  90     function _hashToString(&$var)
  91     {
  92         $values = array();
  93         foreach ($var as $key=>$val) {
  94             $values[] = '\''. $key . '\': ' . Types::toString($val);
  95         }
  96         return '{' . join(', ', $values) . '}';
  97     }
  98 }
  99
 100 ?>