1: <?php
  2: 
  3: /**
  4:  * Picon Framework
  5:  * http://code.google.com/p/picon-framework/
  6:  *
  7:  * Copyright (C) 2011-2012 Martin Cassidy <martin.cassidy@webquub.com>
  8: 
  9:  * Picon Framework is free software: you can redistribute it and/or modify
 10:  * it under the terms of the GNU General Public License as published by
 11:  * the Free Software Foundation, either version 3 of the License, or
 12:  * (at your option) any later version.
 13: 
 14:  * Picon Framework is distributed in the hope that it will be useful,
 15:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 16:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 17:  *  General Public License for more details.
 18: 
 19:  * You should have received a copy of the GNU General Public License
 20:  * along with Picon Framework.  If not, see <http://www.gnu.org/licenses/>.
 21:  * */
 22: 
 23: namespace picon;
 24: 
 25: /**
 26:  * Parser for picon XML. This works like the XMLParser but will produce
 27:  * different XMLTag objects for different picon elements
 28:  * 
 29:  * MarkupElement - A normal HTML element
 30:  * ComponentTag - An HTML element with a picon:id that will have a corrisponding
 31:  * component in the hierachy
 32:  * PiconTag - A special picon tag such as picon:child or picon:panel
 33:  * TextElement - Holds the character data as a child of the xml tag
 34:  * 
 35:  * @author Martin Cassidy
 36:  * @package utilities
 37:  * @todo add support for extracting the doctype
 38:  * @todo this needs refactoring to handle different tags in a better way
 39:  */
 40: class MarkupParser extends XMLParser
 41: {
 42:     private static $PICON_ELEMENTS = array('picon:child', 'picon:extend', 'picon:panel', 'picon:head', 'picon:border', 'picon:body');
 43: 
 44:     protected function onCharacterData($data, XMLTag $element)
 45:     {
 46:         $element->addChild(new TextElement($this->html_entities($data)));
 47:     }
 48:     
 49:     protected function newElement($name, $attributes)
 50:     {
 51:         if (array_key_exists('picon:id', $attributes))
 52:         {
 53:             return new ComponentTag($name, $attributes);
 54:         }
 55:         elseif (in_array($name, MarkupParser::$PICON_ELEMENTS) || $name=='head')
 56:         {
 57:             $tag = new PiconTag($name, $attributes);
 58:             
 59:             if($name=='head')
 60:             {
 61:                 $tag->put('picon:id', HeaderResolver::HEADER_ID);
 62:             }
 63:             
 64:             return $tag;
 65:         }
 66:         else
 67:         {
 68:             return new MarkupElement($name, $attributes);
 69:         }
 70:     }
 71: 
 72:     protected function onXmlError($errorCode, $errorMessage)
 73:     {
 74:         throw new \InvalidMarkupException(sprintf("XML error: %s at line %d of file %s", $errorCode, $errorMessage, $this->xmlFile));
 75:     }
 76: 
 77:     protected function prepare($data)
 78:     {
 79:         return $this->numeric_entities($data);
 80:     }
 81:     
 82:     private function numeric_entities($string)
 83:     {
 84:         $mapping = array();
 85:         foreach (get_html_translation_table(HTML_ENTITIES, ENT_QUOTES) as $char => $entity)
 86:         {
 87:             $mapping[$entity] = '!entity-mark#' . ord($char) . '!entity-mar#';
 88:         }
 89:         
 90:         return str_replace(array_keys($mapping), $mapping, $string);
 91:     }
 92:     
 93:     private function html_entities($string)
 94:     {
 95:         $mapping = array();
 96:         foreach (get_html_translation_table(HTML_ENTITIES, ENT_QUOTES) as $char => $entity)
 97:         {
 98:             $mapping['!entity-mark#' . ord($char) . '!entity-mar#'] = $entity;
 99:         }
100:         
101:         return str_replace(array_keys($mapping), $mapping, $string);
102:     }
103: }
104: 
105: ?>
106: