<?php
###########################################################
#      /!\ /!\ /!\ EDIT THIS FILE IN UTF8 /!\ /!\ /!\     #
###########################################################

# ***** BEGIN LICENSE BLOCK *****
# This file is part of Clearbricks.
# Copyright (c) 2003-2013 Olivier Meunier & Association Dotclear
# All rights reserved.
#
# Clearbricks 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.
# 
# Clearbricks 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 Clearbricks; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# ***** END LICENSE BLOCK *****
#
# Contributor(s):
# Stephanie Booth
# Mathieu Pillard
# Christophe Bonijol
# Jean-Charles Bagneris
# Nicolas Chachereau
# Jérôme Lipowicz
#
# Version : 3.2.7
# Release date : 2013-02-11

# History :
#
# 3.2.7
#			=> Les styles d'alignement des images sont modifiables via les options
# 
# 3.2.6
#			=> Added ``inline html`` support
#
# 3.2.5
#			=> Changed longdesc by title in images
#
# 3.2.4
#			=> Auto links
#			=> Code cleanup
#
# 3.2.3
# Olivier
# 			=> PHP5 Strict
#
# 3.2.2
# Olivier
#			=> Changement de la gestion des URL spéciales
#
# 3.2.1
# Olivier
#			=> Changement syntaxe des macros
#
# 3.2
# Olivier
#			=> Changement de fonctionnement des macros
#			=> Passage de fonctions externes pour les macros et les mots wiki
#
# 3.1d
# Jérôme Lipowicz
#			=> antispam
# Olivier
#			=> centrage d'image
#
# 3.1c
# Olivier
#			=> Possibilité d'échaper les | dans les marqueurs avec \
#
# 3.1b
# Nicolas Chachereau
#			=> Changement de regexp pour la correction syntaxique
#
# 3.1a
# Olivier
#			=> Bug du Call-time pass-by-reference
#
# 3.1
# Olivier
#			=> Ajout des macros «««..»»»
#			=> Ajout des blocs vides øøø
#			=> Ajout du niveau de titre paramétrable
#			=> Option de blocage du parseur dans les <pre>
#			=> Titres au format setext (experimental, désactivé)
#
# 3.0
# Olivier		=> Récriture du parseur inline, plus d'erreur XHTML
#			=> Ajout d'une vérification d'intégrité pour les listes
#			=> Les acronymes sont maintenant dans un fichier texte
#			=> Ajout d'un tag images ((..)), del --..-- et ins ++..++
#			=> Plus possible de faire des liens JS [lien|javascript:...]
#			=> Ajout des notes de bas de page §§...§§
#			=> Ajout des mots wiki
#
# 2.5
# Olivier		=> Récriture du code, plus besoin du saut de ligne entre blocs !=
#
# 2.0
# Stephanie	=> correction des PCRE et ajout de fonctionnalités
# Mathieu 	=> ajout du strip-tags, implementation des options, reconnaissance automatique d'url, etc.
# Olivier		=> chagement de active_link en active_urls
#			=> ajout des options pour les blocs
#			=> intégration de l'aide dans le code, avec les options
#			=> début de quelque chose pour la reconnaissance auto d'url (avec Mat)

# TODO :
# Mathieu	=> active_wiki_urls (modifier wikiParseUrl ?)
# 		=> active_auto_urls
#
# *		=> ajouter des options.
# 		=> trouver un meilleur nom pour active_link ? (pour le jour ou ca sera tellement une usine
#		   a gaz que on generera des tags <link> :)
#

# Wiki2xhtml

class wiki2xhtml
{
	public $__version__ = '3.2.7';
	
	public $T;
	public $opt;
	public $line;
	public $acro_table;
	public $foot_notes;
	public $macros;
	public $functions;
	
	public $tags;
	public $open_tags;
	public $close_tags;
	public $custom_tags = array();
	public $all_tags;
	public $tag_pattern;
	public $escape_table;
	public $allowed_inline = array();
	
	function __construct()
	{
		# Mise en place des options
		$this->setOpt('active_title',1);		# Activation des titres !!!
		$this->setOpt('active_setext_title',0);	# Activation des titres setext (EXPERIMENTAL)
		$this->setOpt('active_hr',1);			# Activation des <hr />
		$this->setOpt('active_lists',1);		# Activation des listes
		$this->setOpt('active_quote',1);		# Activation du <blockquote>
		$this->setOpt('active_pre',1);		# Activation du <pre>
		$this->setOpt('active_empty',1);		# Activation du bloc vide øøø
		$this->setOpt('active_auto_urls',0);	# Activation de la reconnaissance d'url
		$this->setOpt('active_auto_br',0);	# Activation du saut de ligne automatique (dans les paragraphes)
		$this->setOpt('active_antispam',1);	# Activation de l'antispam pour les emails
		$this->setOpt('active_urls',1);		# Activation des liens []
		$this->setOpt('active_auto_img',1);	# Activation des images automatiques dans les liens []
		$this->setOpt('active_img',1);		# Activation des images (())
		$this->setOpt('active_anchor',1);		# Activation des ancres ~...~
		$this->setOpt('active_em',1);			# Activation du <em> ''...''
		$this->setOpt('active_strong',1);		# Activation du <strong> __...__
		$this->setOpt('active_br',1);			# Activation du <br /> %%%
		$this->setOpt('active_q',1);			# Activation du <q> {{...}}
		$this->setOpt('active_code',1);		# Activation du <code> @@...@@
		$this->setOpt('active_acronym',1); 	# Activation des acronymes
		$this->setOpt('active_ins',1);		# Activation des ins ++..++
		$this->setOpt('active_del',1);		# Activation des del --..--
		$this->setOpt('active_inline_html',1);	# Activation du HTML inline ``...``
		$this->setOpt('active_footnotes',1);	# Activation des notes de bas de page
		$this->setOpt('active_wikiwords',0);	# Activation des mots wiki
		$this->setOpt('active_macros',1);		# Activation des macros /// ///
		
		$this->setOpt('parse_pre',1);			# Parser l'intérieur de blocs <pre> ?
		
		$this->setOpt('active_fr_syntax',1);	# Corrections syntaxe FR
		
		$this->setOpt('first_title_level',3);	# Premier niveau de titre <h..>
		
		$this->setOpt('note_prefix','wiki-footnote');
		$this->setOpt('note_str','<div class="footnotes"><h4>Notes</h4>%s</div>');
		$this->setOpt('note_str_single','<div class="footnotes"><h4>Note</h4>%s</div>');
		$this->setOpt('words_pattern',
		'((?<![A-Za-z0-9])([A-Z][a-z]+){2,}(?![A-Za-z0-9]))');
		
		$this->setOpt('auto_url_pattern',
		'%(?<![\[\|])(http://|https://|ftp://|news:)([^"\s\)!]+)%msu');
		
		$this->setOpt('acronyms_file',dirname(__FILE__).'/acronyms.txt');
		
		$this->setOpt('img_style_left','float:left; margin: 0 1em 1em 0;');
		$this->setOpt('img_style_center','display:block; margin:0 auto;');
		$this->setOpt('img_style_right','float:right; margin: 0 0 1em 1em;');

		$this->acro_table = $this->__getAcronyms();
		$this->foot_notes = array();
		$this->functions = array();
		$this->macros = array();
		
		$this->registerFunction('macro:html',array($this,'__macroHTML'));
	}
	
	function setOpt($option, $value)
	{
		$this->opt[$option] = $value;
	}
	
	function setOpts($options)
	{
		if (!is_array($options)) {
			return;
		}
		
		foreach ($options as $k => $v) {
			$this->opt[$k] = $v;
		}
	}
	
	function getOpt($option)
	{
		return (!empty($this->opt[$option])) ? $this->opt[$option] : false;
	}
	
	function registerFunction($type,$name)
	{
		if (is_callable($name)) {
			$this->functions[$type] = $name;
		}
	}
	
	function transform($in)
	{
		# Initialisation des tags
		$this->__initTags();
		$this->foot_notes = array();
		
		# Récupération des macros
		if ($this->getOpt('active_macros')) {
			$in = preg_replace('#^///(.*?)///($|\r)#mse',"\\\$this->__getMacro('\\1')",$in);
		}
		
		# Vérification du niveau de titre
		if ($this->getOpt('first_title_level') > 4) {
			$this->setOpt('first_title_level',4);
		}
		
		$res = str_replace("\r", '', $in);
		
		$escape_pattern = array();
		
		# traitement des titres à la setext
		if ($this->getOpt('active_setext_title') && $this->getOpt('active_title')) {
			$res = preg_replace('/^(.*)\n[=]{5,}$/m','!!!$1',$res); 
			$res = preg_replace('/^(.*)\n[-]{5,}$/m','!!$1',$res);
		}
		
		# Transformation des mots Wiki
		if ($this->getOpt('active_wikiwords') && $this->getOpt('words_pattern')) {
			$res = preg_replace('/'.$this->getOpt('words_pattern').'/msu','¶¶¶$1¶¶¶',$res);
		}
		
		# Transformation des URLs automatiques
		if ($this->getOpt('active_auto_urls'))
		{
			$active_urls = $this->getOpt('active_urls');
			
			$this->setOpt('active_urls',1);
			$this->__initTags();
			
			# If urls are not active, escape URLs tags
			if (!$active_urls)
			{
				$res = preg_replace(
				'%(?<!\\\\)(['.preg_quote(implode('',$this->tags['a'])).'])%msU',
				'\\\$1',$res
				);
			}
			
			# Transforms urls while preserving tags.
			$tree = preg_split($this->tag_pattern,$res,-1,PREG_SPLIT_DELIM_CAPTURE);
			foreach ($tree as &$leaf) {
				$leaf = preg_replace($this->getOpt('auto_url_pattern'),'[$1$2]',$leaf);
			}
			unset($leaf);
			$res = implode($tree);
			
			
		}
		
		$this->T = explode("\n",$res);
		$this->T[] = '';
		
		# Parse les blocs
		$res = $this->__parseBlocks();
		
		# Line break
		if ($this->getOpt('active_br')) {
			$res = preg_replace('/(?<!\\\)%%%/', '<br />', $res);
			$escape_pattern[] = '%%%';
		}
		
		# Nettoyage des \s en trop
		$res = preg_replace('/([\s]+)(<\/p>|<\/li>|<\/pre>)/u', '$2', $res);
		$res = preg_replace('/(<li>)([\s]+)/u', '$1', $res);
		
		# On vire les escapes
		if (!empty($escape_pattern)) {
			$res = preg_replace('/\\\('.implode('|',$escape_pattern).')/','$1',$res);
		}
		
		# On vire les ¶¶¶MotWiki¶¶¶ qui sont resté (dans les url...)
		if ($this->getOpt('active_wikiwords') && $this->getOpt('words_pattern')) {
			$res = preg_replace('/¶¶¶'.$this->getOpt('words_pattern').'¶¶¶/msu','$1',$res);
		}
		
		# On remet les macros
		if ($this->getOpt('active_macros')) {
			$res = preg_replace('/^##########MACRO#([0-9]+)#$/mse','\$this->__putMacro("$1")',$res);
		}
		
		# Auto line break dans les paragraphes
		if ($this->getOpt('active_auto_br')) {
			$res = preg_replace_callback('%(<p>)(.*?)(</p>)%msu',array($this,'__autoBR'),$res);
		}
		
		# On ajoute les notes
		if (count($this->foot_notes) > 0)
		{
			$res_notes = '';
			$i = 1;
			foreach ($this->foot_notes as $k => $v) {
				$res_notes .= "\n".'<p>[<a href="#rev-'.$k.'" id="'.$k.'">'.$i.'</a>] '.$v.'</p>';
				$i++;
			}
			$res .= sprintf("\n".(count($this->foot_notes) > 1 ? $this->getOpt('note_str') : $this->getOpt('note_str_single'))."\n",$res_notes);
		}
		
		return $res;
	}
	
	/* PRIVATE
	--------------------------------------------------- */
	
	function __initTags()
	{
		$tags = array(
			'em' => array("''","''"),
			'strong' => array('__','__'),
			'acronym' => array('??','??'),
			'a' => array('[',']'),
			'img' => array('((','))'),
			'q' => array('{{','}}'),
			'code' => array('@@','@@'),
			'anchor' => array('~','~'),
			'del' => array('--','--'),
			'ins' => array('++','++'),
			'inline' => array('``','``'),
			'note' => array('$$','$$'),
			'word' => array('¶¶¶','¶¶¶')
		);
		$this->linetags = array(
			'empty' => 'øøø',
			'title' => '([!]{1,4})',
			'hr' => '[-]{4}[- ]',
			'quote' => '(&gt;|;:)',
			'lists' => '([*#]+)',
			'pre' => '[ ]{1}'
		);
		
		$this->tags = array_merge($tags,$this->custom_tags);
		
		# Suppression des tags selon les options
		if (!$this->getOpt('active_urls')) {
			unset($this->tags['a']);
		}
		if (!$this->getOpt('active_img')) {
			unset($this->tags['img']);
		}
		if (!$this->getOpt('active_anchor')) {
			unset($this->tags['anchor']);
		}
		if (!$this->getOpt('active_em')) {
			unset($this->tags['em']);
		}
		if (!$this->getOpt('active_strong')) {
			unset($this->tags['strong']);
		}
		if (!$this->getOpt('active_q')) {
			unset($this->tags['q']);
		}
		if (!$this->getOpt('active_code')) {
			unset($this->tags['code']);
		}
		if (!$this->getOpt('active_acronym')) {
			unset($this->tags['acronym']);
		}
		if (!$this->getOpt('active_ins')) {
			unset($this->tags['ins']);
		}
		if (!$this->getOpt('active_del')) {
			unset($this->tags['del']);
		}
		if (!$this->getOpt('active_inline_html')) {
			unset($this->tags['inline']);
		}
		if (!$this->getOpt('active_footnotes')) {
			unset($this->tags['note']);
		}
		if (!$this->getOpt('active_wikiwords')) {
			unset($this->tags['word']);
		}
		
		# Suppression des tags de début de ligne selon les options
		if (!$this->getOpt('active_empty')) {
			unset($this->linetags['empty']);
		}
		if (!$this->getOpt('active_title')) {
			unset($this->linetags['title']);
		}
		if (!$this->getOpt('active_hr')) {
			unset($this->linetags['hr']);
		}
		if (!$this->getOpt('active_quote')) {
			unset($this->linetags['quote']);
		}
		if (!$this->getOpt('active_lists')) {
			unset($this->linetags['lists']);
		}
		if (!$this->getOpt('active_pre')) {
			unset($this->linetags['pre']);
		}
		
		$this->open_tags = $this->__getTags();
		$this->close_tags = $this->__getTags(false);
		$this->all_tags = $this->__getAllTags();
		$this->tag_pattern = $this->__getTagsPattern();
		
		$this->escape_table = $this->all_tags;
		array_walk($this->escape_table,create_function('&$a','$a = \'\\\\\'.$a;'));
	}
	
	function __getTags($open=true)
	{
		$res = array();
		foreach ($this->tags as $k => $v) {
			$res[$k] = ($open) ? $v[0] : $v[1];
		}
		return $res;
	}
	
	function __getAllTags()
	{
		$res = array();
		foreach ($this->tags as $v) {
			$res[] = $v[0];
			$res[] = $v[1];
		}
		return array_values(array_unique($res));
	}
	
	function __getTagsPattern($escape=false)
	{
		$res = $this->all_tags;
		array_walk($res,create_function('&$a','$a = preg_quote($a,"/");'));
		
		if (!$escape) {
			return '/(?<!\\\)('.implode('|',$res).')/';
		} else {
			return '('.implode('|',$res).')';
		}
	}
	
	/* Blocs
	--------------------------------------------------- */
	function __parseBlocks()
	{
		$mode = $type = null;
		$res = '';
		$max = count($this->T);
		
		for ($i=0; $i<$max; $i++)
		{
			$pre_mode = $mode;
			$pre_type = $type;
			$end = ($i+1 == $max);
			
			$line = $this->__getLine($i,$type,$mode);
			
			if ($type != 'pre' || $this->getOpt('parse_pre')) {
				$line = $this->__inlineWalk($line);
			}
			
			$res .= $this->__closeLine($type,$mode,$pre_type,$pre_mode);
			$res .= $this->__openLine($type,$mode,$pre_type,$pre_mode);
			
			# P dans les blockquotes
			if ($type == 'blockquote' && trim($line) == '' && $pre_type == $type) {
				$res .= "</p>\n<p>";
			}
			
			# Correction de la syntaxe FR dans tous sauf pre et hr
			# Sur idée de Christophe Bonijol
			# Changement de regex (Nicolas Chachereau)
			if ($this->getOpt('active_fr_syntax') && $type != null && $type != 'pre' && $type != 'hr') {
				$line = preg_replace('%[ ]+([:?!;\x{00BB}](\s|$))%u','&nbsp;$1',$line);
				$line = preg_replace('%(\x{00AB})[ ]+%u','$1&nbsp;',$line);
			}
			
			$res .= $line;
		}
		
		return trim($res);
	}
	
	function __getLine($i,&$type,&$mode)
	{
		$pre_type = $type;
		$pre_mode = $mode;
		$type = $mode = null;
		
		if (empty($this->T[$i])) {
			return false;
		}
		
		$line = htmlspecialchars($this->T[$i],ENT_NOQUOTES);
		
		# Ligne vide
		if (empty($line))
		{
			$type = null;
		}
		elseif ($this->getOpt('active_empty') && preg_match('/^øøø(.*)$/',$line,$cap))
		{
			$type = null;
			$line = trim($cap[1]);
		}
		# Titre
		elseif ($this->getOpt('active_title') && preg_match('/^([!]{1,4})(.*)$/',$line,$cap))
		{
			$type = 'title';
			$mode = strlen($cap[1]);
			$line = trim($cap[2]);
		}
		# Ligne HR
		elseif ($this->getOpt('active_hr') && preg_match('/^[-]{4}[- ]*$/',$line))
		{
			$type = 'hr';
			$line = null;
		}
		# Blockquote
		elseif ($this->getOpt('active_quote') && preg_match('/^(&gt;|;:)(.*)$/',$line,$cap))
		{
			$type = 'blockquote';
			$line = trim($cap[2]);
		}
		# Liste
		elseif ($this->getOpt('active_lists') && preg_match('/^([*#]+)(.*)$/',$line,$cap))
		{
			$type = 'list';
			$mode = $cap[1];
			$valid = true;
			
			# Vérification d'intégrité
			$dl = ($type != $pre_type) ? 0 : strlen($pre_mode);
			$d = strlen($mode);
			$delta = $d-$dl;
			
			if ($delta < 0 && strpos($pre_mode,$mode) !== 0) {
				$valid = false;
			}
			if ($delta > 0 && $type == $pre_type && strpos($mode,$pre_mode) !== 0) {
				$valid = false;
			}
			if ($delta == 0 && $mode != $pre_mode) {
				$valid = false;
			}
			if ($delta > 1) {
				$valid = false;
			}
			
			if (!$valid) {
				$type = 'p';
				$mode = null;
				$line = '<br />'.$line;
			} else {
				$line = trim($cap[2]);
			}
		}
		# Préformaté
		elseif ($this->getOpt('active_pre') && preg_match('/^[ ]{1}(.*)$/',$line,$cap))
		{
			$type = 'pre';
			$line = $cap[1];
		}
		# Paragraphe
		else {
			$type = 'p';
			 if (preg_match('/^\\\((?:('.implode('|',$this->linetags).')).*)$/',$line,$cap)) {
				$line = $cap[1];
			}
			$line = trim($line);
		}
		
		return $line;
	}
	
	function __openLine($type,$mode,$pre_type,$pre_mode)
	{
		$open = ($type != $pre_type);
		
		if ($open && $type == 'p')
		{
			return "\n<p>";
		}
		elseif ($open && $type == 'blockquote')
		{
			return "\n<blockquote><p>";
		}
		elseif (($open || $mode != $pre_mode) && $type == 'title')
		{
			$fl = $this->getOpt('first_title_level');
			$fl = $fl+3;
			$l = $fl-$mode;
			return "\n<h".($l).'>';
		}
		elseif ($open && $type == 'pre')
		{
			return "\n<pre>";
		}
		elseif ($open && $type == 'hr')
		{
			return "\n<hr />";
		}
		elseif ($type == 'list')
		{
			$dl = ($open) ? 0 : strlen($pre_mode);
			$d = strlen($mode);
			$delta = $d-$dl;
			$res = '';
			
			if($delta > 0) {
				if(substr($mode, -1, 1) == '*') {
					$res .= "<ul>\n";
				} else {
					$res .= "<ol>\n";
				}
			} elseif ($delta < 0) {
				$res .= "</li>\n";
				for($j = 0; $j < abs($delta); $j++) {
					if (substr($pre_mode,(0 - $j - 1), 1) == '*') {
						$res .= "</ul>\n</li>\n";
					} else {
						$res .= "</ol>\n</li>\n";
					}
				}
			} else {
				$res .= "</li>\n";
			}
			
			return $res."<li>";
		}
		else
		{
			return null;
		}
	}
	
	function __closeLine($type,$mode,$pre_type,$pre_mode)
	{
		$close = ($type != $pre_type);
		
		if ($close && $pre_type == 'p')
		{
			return "</p>\n";
		}
		elseif ($close && $pre_type == 'blockquote')
		{
			return "</p></blockquote>\n";
		}
		elseif (($close || $mode != $pre_mode) && $pre_type == 'title')
		{
			$fl = $this->getOpt('first_title_level');
			$fl = $fl+3;
			$l = $fl-$pre_mode;
			return '</h'.($l).">\n";
		}
		elseif ($close && $pre_type == 'pre')
		{
			return "</pre>\n";
		}
		elseif ($close && $pre_type == 'list')
		{
			$res = '';
			for($j = 0; $j < strlen($pre_mode); $j++) {
				if(substr($pre_mode,(0 - $j - 1), 1) == '*') {
					$res .= "</li>\n</ul>";
				} else {
					$res .= "</li>\n</ol>";
				}
			}
			return $res;
		}
		else
		{
			return "\n";
		}
	}
	
	
	/* Inline
	--------------------------------------------------- */
	function __inlineWalk($str,$allow_only=null)
	{
		$tree = preg_split($this->tag_pattern,$str,-1,PREG_SPLIT_DELIM_CAPTURE);
		
		$res = '';
		for ($i=0; $i<count($tree); $i++)
		{
			$attr = '';
			
			if (in_array($tree[$i],array_values($this->open_tags)) &&
			($allow_only == null || in_array(array_search($tree[$i],$this->open_tags),$allow_only)))
			{
				$tag = array_search($tree[$i],$this->open_tags);
				$tag_type = 'open';
				
				if (($tidy = $this->__makeTag($tree,$tag,$i,$i,$attr,$tag_type)) !== false)
				{
					if ($tag != '') {
						$res .= '<'.$tag.$attr;
						$res .= ($tag_type == 'open') ? '>' : ' />';
					}
					$res .= $tidy;
				}
				else
				{
					$res .= $tree[$i];
				}
			}
			else
			{
				$res .= $tree[$i];
			}
		}
		
		# Suppression des echappements
		$res = str_replace($this->escape_table,$this->all_tags,$res);
		
		return $res;
	}
	
	function __makeTag(&$tree,&$tag,$position,&$j,&$attr,&$type)
	{
		$res = '';
		$closed = false;
		
		$itag = $this->close_tags[$tag];
		
		# Recherche fermeture
		for ($i=$position+1;$i<count($tree);$i++)
		{
			if ($tree[$i] == $itag)
			{
				$closed = true;
				break;
			}
		}
		
		# Résultat
		if ($closed)
		{
			for ($i=$position+1;$i<count($tree);$i++)
			{
				if ($tree[$i] != $itag)
				{
					$res .= $tree[$i];
				}
				else
				{
					switch ($tag)
					{
						case 'a':
							$res = $this->__parseLink($res,$tag,$attr,$type);
							break;
						case 'img':
							$type = 'close';
							$res = $this->__parseImg($res,$attr);
							break;
						case 'acronym':
							$res = $this->__parseAcronym($res,$attr);
							break;
						case 'q':
							$res = $this->__parseQ($res,$attr);
							break;
						case 'anchor':
							$tag = 'a';
							$res = $this->__parseAnchor($res,$attr);
							break;
						case 'note':
							$tag = '';
							$res = $this->__parseNote($res);
							break;
						case 'inline':
							$tag = '';
							$res = $this->__parseInlineHTML($res);
							break;
						case 'word':
							$res = $this->parseWikiWord($res,$tag,$attr,$type);
							break;
						default :
							$res = $this->__inlineWalk($res);
							break;
					}
					
					if ($type == 'open' && $tag != '') {
						$res .= '</'.$tag.'>';
					}
					$j = $i;
					break;
				}
			}
			
			return $res;
		}
		else
		{
			return false;
		}
	}
	
	function __splitTagsAttr($str)
	{
		$res = preg_split('/(?<!\\\)\|/',$str);
		
		foreach ($res as $k => $v) {
			$res[$k] = str_replace("\|",'|',$v);
		}
		
		return $res;
	}
	
	# Antispam (Jérôme Lipowicz)
	function __antiSpam($str)
	{
		$encoded = bin2hex($str);
		$encoded = chunk_split($encoded, 2, '%');
		$encoded = '%'.substr($encoded, 0, strlen($encoded) - 1);
		return $encoded;
	}
	
	function __parseLink($str,&$tag,&$attr,&$type)
	{
		$n_str = $this->__inlineWalk($str,array('acronym','img'));
		$data = $this->__splitTagsAttr($n_str);
		$no_image = false;
		
		# Only URL in data
		if (count($data) == 1)
		{
			$url = trim($str);
			$content = strlen($url) > 35 ? substr($url,0,35).'...' : $url;
			$lang = '';
			$title = $url;
		}
		elseif (count($data) > 1)
		{
			$url = trim($data[1]);
			$content = $data[0];
			$lang = (!empty($data[2])) ? $this->protectAttr($data[2],true) : '';
			$title = (!empty($data[3])) ? $data[3] : '';
			$no_image = (!empty($data[4])) ? (boolean) $data[4] : false;
		}
		
		# Remplacement si URL spéciale
		$this->__specialUrls($url,$content,$lang,$title);		
		
		# On vire les &nbsp; dans l'url
		$url = str_replace('&nbsp;',' ',$url);
		
		if (preg_match('/^(.+)[.](gif|jpg|jpeg|png)$/', $url) && !$no_image && $this->getOpt('active_auto_img'))
		{
			# On ajoute les dimensions de l'image si locale
			# Idée de Stephanie
			$img_size = null;
			if (!preg_match('#[a-zA-Z]+://#', $url)) {
				if (preg_match('#^/#',$url)) {
					$path_img = $_SERVER['DOCUMENT_ROOT'] . $url;
				} else {
					$path_img = $url;
				}
				
				$img_size = @getimagesize($path_img);
			}
			
			$attr = ' src="'.$this->protectAttr($this->protectUrls($url)).'"'.
			$attr .= (count($data) > 1) ? ' alt="'.$this->protectAttr($content).'"' : ' alt=""';
			$attr .= ($lang) ? ' lang="'.$lang.'"' : '';
			$attr .= ($title) ? ' title="'.$this->protectAttr($title).'"' : '';
			$attr .= (is_array($img_size)) ? ' '.$img_size[3] : '';
			
			$tag = 'img';
			$type = 'close';
			return null;
		}
		else
		{
			if ($this->getOpt('active_antispam') && preg_match('/^mailto:/',$url)) {
				$content = $content == $url ? preg_replace('%^mailto:%','',$content) : $content;
				$url = 'mailto:'.$this->__antiSpam(substr($url,7));
				
			}
			
			$attr = ' href="'.$this->protectAttr($this->protectUrls($url)).'"';
			$attr .= ($lang) ? ' hreflang="'.$lang.'"' : '';
			$attr .= ($title) ? ' title="'.$this->protectAttr($title).'"' : '';
			
			return $content;
		}
	}
	
	function __specialUrls(&$url,&$content,&$lang,&$title)
	{
		foreach ($this->functions as $k => $v)
		{
			if (strpos($k,'url:') === 0 && strpos($url,substr($k,4)) === 0)
			{
				$res = call_user_func($v,$url,$content);
				
				$url = isset($res['url']) ? $res['url'] : $url;
				$content = isset($res['content']) ? $res['content'] : $content;
				$lang = isset($res['lang']) ? $res['lang'] : $lang;
				$title = isset($res['title']) ? $res['title'] : $title;
				
				break;
			}
		}
	}
	
	function __parseImg($str,&$attr)
	{
		$data = $this->__splitTagsAttr($str);
		
		$alt = '';
		$url = $data[0];
		if (!empty($data[1])) {
			$alt = $data[1];
		}
		
		$attr = ' src="'.$this->protectAttr($this->protectUrls($url)).'"';
		$attr .= ' alt="'.$this->protectAttr($alt).'"';
		
		if (!empty($data[2])) {
			$data[2] = strtoupper($data[2]);
			$style = '';
			if ($data[2] == 'G' || $data[2] == 'L') {
				$style = $this->getOpt('img_style_left');
			} elseif ($data[2] == 'D' || $data[2] == 'R') {
				$style = $this->getOpt('img_style_right');
			} elseif ($data[2] == 'C') {
				$style = $this->getOpt('img_style_center');
			}
			if ($style != '') {
				$attr .= ' style="'.$style.'"';
			}
		}
		
		if (!empty($data[3])) {
			$attr .= ' title="'.$this->protectAttr($data[3]).'"';
		}
		
		return null;
	}
	
	function __parseQ($str,&$attr)
	{
		$str = $this->__inlineWalk($str);
		$data = $this->__splitTagsAttr($str);
		
		$content = $data[0];
		$lang = (!empty($data[1])) ? $this->protectAttr($data[1],true) : '';
		
		$attr .= (!empty($lang)) ? ' lang="'.$lang.'"' : '';
		$attr .= (!empty($data[2])) ? ' cite="'.$this->protectAttr($this->protectUrls($data[2])).'"' : '';
		
		return $content;
	}
	
	function __parseAnchor($str,&$attr)
	{
		$name = $this->protectAttr($str,true);
		
		if ($name != '') {
			$attr = ' name="'.$name.'"';
		}
		return null;
	}
	
	function __parseNote($str)
	{
		$i = count($this->foot_notes)+1;
		$id = $this->getOpt('note_prefix').'-'.$i;
		$this->foot_notes[$id] = $this->__inlineWalk($str);
		return '<sup>\[<a href="#'.$id.'" id="rev-'.$id.'">'.$i.'</a>\]</sup>';
	}
	
	function __parseInlineHTML($str)
	{
		return str_replace(array('&gt;','&lt;'),array('>','<'),$str);
	}
	
	# Obtenir un acronyme
	function __parseAcronym($str,&$attr)
	{
		$data = $this->__splitTagsAttr($str);
		
		$acronym = $data[0];
		$title = $lang = '';
		
		if (count($data) > 1)
		{
			$title = $data[1];
			$lang = (!empty($data[2])) ? $this->protectAttr($data[2],true) : '';
		}
		
		if ($title == '' && !empty($this->acro_table[$acronym])) {
			$title = $this->acro_table[$acronym];
		}
		
		$attr = ($title) ? ' title="'.$this->protectAttr($title).'"' : '';
		$attr .= ($lang) ? ' lang="'.$lang.'"' : '';
		
		return $acronym;
	}
	
	# Définition des acronymes, dans le fichier acronyms.txt
	function __getAcronyms()
	{
		$file = $this->getOpt('acronyms_file');
		$res = array();
		
		if (file_exists($file))
		{
			if (($fc = @file($file)) !== false)
			{
				foreach ($fc as $v)
				{
					$v = trim($v);
					if ($v != '')
					{
						$p = strpos($v,':');
						$K = (string) trim(substr($v,0,$p));
						$V = (string) trim(substr($v,($p+1)));
						
						if ($K) {
							$res[$K] = $V;
						}
					}
				}
			}
		}
		
		return $res;
	}
	
	# Mots wiki (pour héritage)
	function parseWikiWord($str,&$tag,&$attr,&$type)
	{
		$tag = $attr = '';
		
		if (isset($this->functions['wikiword'])) {
			return call_user_func($this->functions['wikiword'],$str);
		}
		
		return $str;
	}
	
	/* Protection des attributs */
	function protectAttr($str,$name=false)
	{
		if ($name && !preg_match('/^[A-Za-z][A-Za-z0-9_:.-]*$/',$str)) {
			return '';
		}
		
		return str_replace(array("'",'"'),array('&#039;','&quot;'),$str);
	}
	
	/* Protection des urls */
	function protectUrls($str)
	{
		if (preg_match('/^javascript:/',$str)) {
			$str = '#';
		}
		
		return $str;
	}
	
	/* Auto BR */
	function __autoBR($m)
	{
		return $m[1].str_replace("\n","<br />\n",$m[2]).$m[3];
	}
	
	/* Macro
	--------------------------------------------------- */
	function __getMacro($s)
	{
		$this->macros[] = str_replace('\"','"',$s);
		return 'øøø##########MACRO#'.(count($this->macros)-1).'#';
	}
	
	function __putMacro($id)
	{
		$id = (integer) $id;
		if (isset($this->macros[$id]))
		{
			$content = str_replace("\r",'',$this->macros[$id]);
			
			$c = explode("\n",$content);
						
			# première ligne, premier mot
			$fl = trim($c[0]);
			$fw = $fl;
			
			if ($fl) {
				if (strpos($fl,' ') !== false) {
					$fw = substr($fl,0,strpos($fl,' '));
				}
				$content = implode("\n",array_slice($c,1));
			}
			
			if ($c[0] == "\n") {
				$content = implode("\n",array_slice($c,1));
			}
			
			if ($fw)
			{
				if (isset($this->functions['macro:'.$fw]))
				{
					return call_user_func($this->functions['macro:'.$fw],$content,$fl);
				}
			}
			
			# Si on n'a rien pu faire, on retourne le tout sous
			# forme de <pre>
			return '<pre>'.htmlspecialchars($this->macros[$id]).'</pre>';
		}
		
		return null;
	}
	
	function __macroHTML($s)
	{
		return $s;
	}
	
	/* Aide et debug
	--------------------------------------------------- */
	function help()
	{
		$help['b'] = array();
		$help['i'] = array();
		
		$help['b'][] = 'Laisser une ligne vide entre chaque bloc <em>de même nature</em>.';
		$help['b'][] = '<strong>Paragraphe</strong> : du texte et une ligne vide';
		
		if ($this->getOpt('active_title')) {
			$help['b'][] = '<strong>Titre</strong> : <code>!!!</code>, <code>!!</code>, '.
			'<code>!</code> pour des titres plus ou moins importants';
		}
		
		if ($this->getOpt('active_hr')) {
			$help['b'][] = '<strong>Trait horizontal</strong> : <code>----</code>';
		}
		
		if ($this->getOpt('active_lists')) {
			$help['b'][] = '<strong>Liste</strong> : ligne débutant par <code>*</code> ou '.
			'<code>#</code>. Il est possible de mélanger les listes '.
			'(<code>*#*</code>) pour faire des listes de plusieurs niveaux. '.
			'Respecter le style de chaque niveau';
		}
		
		if ($this->getOpt('active_pre')) {
			$help['b'][] = '<strong>Texte préformaté</strong> : espace devant chaque ligne de texte';
		}
		
		if ($this->getOpt('active_quote')) {
			$help['b'][] = '<strong>Bloc de citation</strong> : <code>&gt;</code> ou '.
			'<code>;:</code> devant chaque ligne de texte';
		}
		
		if ($this->getOpt('active_fr_syntax')) {
			$help['i'][] = 'La correction de ponctuation est active. Un espace '.
						'insécable remplacera automatiquement tout espace '.
						'précédant les marques ";","?",":" et "!".';
		}
		
		if ($this->getOpt('active_em')) {
			$help['i'][] = '<strong>Emphase</strong> : deux apostrophes <code>\'\'texte\'\'</code>';
		}
		
		if ($this->getOpt('active_strong')) {
			$help['i'][] = '<strong>Forte emphase</strong> : deux soulignés <code>__texte__</code>';
		}
		
		if ($this->getOpt('active_br')) {
			$help['i'][] = '<strong>Retour forcé à la ligne</strong> : <code>%%%</code>';
		}
		
		if ($this->getOpt('active_ins')) {
			$help['i'][] = '<strong>Insertion</strong> : deux plus <code>++texte++</code>';
		}
		
		if ($this->getOpt('active_del')) {
			$help['i'][] = '<strong>Suppression</strong> : deux moins <code>--texte--</code>';
		}
		
		if ($this->getOpt('active_urls')) {
			$help['i'][] = '<strong>Lien</strong> : <code>[url]</code>, <code>[nom|url]</code>, '.
			'<code>[nom|url|langue]</code> ou <code>[nom|url|langue|titre]</code>.';
			
			$help['i'][] = '<strong>Image</strong> : comme un lien mais avec une extension d\'image.'.
			'<br />Pour désactiver la reconnaissance d\'image mettez 0 dans un dernier '.
			'argument. Par exemple <code>[image|image.gif||0]</code> fera un lien vers l\'image au '.
			'lieu de l\'afficher.'.
			'<br />Il est conseillé d\'utiliser la nouvelle syntaxe.';
		}
		
		if ($this->getOpt('active_img')) {
			$help['i'][] = '<strong>Image</strong> (nouvelle syntaxe) : '.
			'<code>((url|texte alternatif))</code>, '.
			'<code>((url|texte alternatif|position))</code> ou '.
			'<code>((url|texte alternatif|position|description longue))</code>. '.
			'<br />La position peut prendre les valeur L ou G (gauche), R ou D (droite) ou C (centré).';
		}
		
		if ($this->getOpt('active_anchor')) {
			$help['i'][] = '<strong>Ancre</strong> : <code>~ancre~</code>';
		}
		
		if ($this->getOpt('active_acronym')) {
			$help['i'][] = '<strong>Acronyme</strong> : <code>??acronyme??</code> ou '.
			'<code>??acronyme|titre??</code>';
		}
		
		if ($this->getOpt('active_q')) {
			$help['i'][] = '<strong>Citation</strong> : <code>{{citation}}</code>, '.
			'<code>{{citation|langue}}</code> ou <code>{{citation|langue|url}}</code>';
		}
		
		if ($this->getOpt('active_code')) {
			$help['i'][] = '<strong>Code</strong> : <code>@@code ici@@</code>';
		}
		
		if ($this->getOpt('active_footnotes')) {
			$help['i'][] = '<strong>Note de bas de page</strong> : <code>$$Corps de la note$$</code>';
		}
		
		$res = '<dl class="wikiHelp">';
		
		$res .= '<dt>Blocs</dt><dd>';
		if (count($help['b']) > 0)
		{
			$res .= '<ul><li>';
			$res .= implode('&nbsp;;</li><li>', $help['b']);
			$res .= '.</li></ul>';
		}
		$res .= '</dd>';
		
		$res .= '<dt>Éléments en ligne</dt><dd>';
		if (count($help['i']) > 0)
		{
			$res .= '<ul><li>';
			$res .= implode('&nbsp;;</li><li>', $help['i']);
			$res .= '.</li></ul>';
		}
		$res .= '</dd>';
		
		$res .= '</dl>';
		
		return $res;	
	}
	
	/*
	function debug()
	{
		$mode = $type = null;
		$max = count($this->T);
		
		$res =
		'<table border="1">'.
		'<tr><th>p-mode</th><th>p-type</th><th>mode</th><th>type</th><th>chaine</th></tr>';
		
		for ($i=0; $i<$max; $i++)
		{
			$pre_mode = $mode;
			$pre_type = $type;
			
			$line = $this->__getLine($i,$type,$mode);
			
			$res .=
			'<tr><td>'.$pre_mode.'</td><td>'.$pre_type.'</td>'.
			'<td>'.$mode.'</td><td>'.$type.'</td><td>'.$line.'</td></tr>';
			
		}
		$res .= '</table>';
		
		return $res;
	}
	//*/
}

?>