/******************************************************************************
  Crossday Discuz! Board - HTML <=> BB Code for Discuz!
  Copyright 2001-2006 Comsenz Inc. (http://www.comsenz.com)
*******************************************************************************/

var pcodecount = '-1';
var codecount = 0;
var codehtml = new Array();
var prependtags = '';
var appendtags = '';

function atag(aoptions, text) {
	if(trim(text) == '') {
		return '';
	}

	href = getoptionvalue('href', aoptions);

	if(href.substr(0, 11) == 'javascript:') {
		return trim(recursion('a', text, 'atag'));
	} else if(href.substr(0, 7) == 'mailto:') {
		tag = 'email';
		href = href.substr(7);
	} else {
		tag = 'url';
	}

	return '[' + tag + '=' + href + ']' + trim(recursion('a', text, 'atag')) + '[/' + tag + ']';
}

	//codehtml[pcodecount] = "<br><br><div style=\"" + msgheader + "\"><div class=\"right\"><a href=\"###\" class=\"smalltxt\">[Copy to clipboard]</a></div>CODE:</div><div style=\"" + msgborder + "\">" + text + "</div>";

function parsecode(text) {
	pcodecount++;

	text = text.replace(/^[\n\r]*([\s\S]+?)[\n\r]*$/ig, '$1');
	text = htmlspecialchars(text);

	codehtml[pcodecount] = '[code]' + text + '[/code]';

	codecount++;
	return "[\tDISCUZ_CODE_" + pcodecount + "\t]";
}

function codetag(text) {
	pcodecount++;

	text = text.replace(/<br[^\>]*>/ig, "\n");
	text = text.replace(/^[\n\r]*([\s\S]+?)[\n\r]*$/ig, '$1');
	text = text.replace(/<(\/|)[A-Za-z].*?>/ig, '');

	codehtml[pcodecount] = "[code]" + text + "[/code]";
	codecount++;
	return "[\tDISCUZ_CODE_" + pcodecount + "\t]";
}

function divtag(divoptions, text) {
	prepend = '';
	append = '';

	parsestyle(divoptions, prepend, append);
	align = getoptionvalue('align', divoptions);

	switch(align) {
		case 'left':
		case 'center':
		case 'right':
			break;
		default:
			align = '';
	}

	if(align) {
		prepend += '[align=' + align + ']';
		append += '[/align]';
	}
	append += "\n";

	return prepend + recursion('div', text, 'divtag') + append;
}

function fetchoptionvalue(option, text) {
	if((position = strpos(text, option)) !== false) {
		delimiter = position + option.length;
		if(text.charAt(delimiter) == '"') {
			delimchar = '"';
		} else if(text.charAt(delimiter) == '\'') {
			delimchar = '\'';
		} else {
			delimchar = ' ';
		}
		delimloc = strpos(text, delimchar, delimiter + 1);
		if(delimloc === false) {
			delimloc = text.length;
		} else if(delimchar == '"' || delimchar == '\'') {
			delimiter++;
		}
		return trim(text.substr(delimiter, delimloc - delimiter));
	} else {
		return '';
	}
}

function parsestyle(tagoptions, prependtags, appendtags) {

	var searchlist = [
		['align', true, 'text-align:\s*(left|center|right);?', 1],
		['color', true, '[a-z0-9-]color:\s*([^;]+);?', 1],
		['font', true, 'font-family:\s*([^;]+);?', 1],
		['size', true, 'font-size:\s*([\d]+p[x|t]);?', 1],
		['b', false, 'font-weight:\s*(bold);?'],
		['i', false, 'font-style:\s*(italic);?'],
		['u', false, 'text-decoration:\s*(underline);?']
	];

	style = getoptionvalue('style', tagoptions);

	re = /[a-z0-9-]color:\s*rgb\((\d+),\s*(\d+),\s*(\d+)\)(;?)/ig;
	style = style.replace(re, function($1, $2, $3, $4, $5) {return("color:#" + parseInt($2).toString(16) + parseInt($3).toString(16) + parseInt($4).toString(16) + $5);});

	for(var i = 0; i < searchlist.length; i++) {
		re = new RegExp(searchlist[i][2], "ig");
		match = re.exec(style);

		if(match != null) {
			opnvalue = match["searchlist[i][3]"];

			re = /([\d]+)p([x|t])/ig;
			matches = re.exec(opnvalue);
			if(matches != null) {
				if(matches[2] == 'x') {
					matches[1] = matches[1] * 0.75;
				}
				switch(matches[1]) {
					case matches[1] < 10: opnvalue = 1; break;
					case matches[1] < 12: opnvalue = 2; break;
					case matches[1] < 14: opnvalue = 3; break;
					case matches[1] < 18: opnvalue = 4; break;
					case matches[1] < 24: opnvalue = 5; break;
					case matches[1] < 36: opnvalue = 6; break;
					case matches[1] >= 36: opnvalue = 7; break;
					default:     opnvalue = 2; break;
				}
			}
			prependtags += '[' + searchlist[i][0] + (searchlist[i][1] == true ? '=' + opnvalue + ']' : ']');
			appendtags = '[/' + searchlist[i][0] + ']' + appendtags;
		}
	}
}

function getoptionvalue(option, text) {

	re = new RegExp(option + "(\s+?)?\=(\s+?)?[\"']?(.+?)([\"']|$|>)", "ig");
	var matches = re.exec(text);
	if(matches != null && matches.length) {
		return trim(matches[3]);
	}
	return '';
}

function fonttag(fontoptions, text) {
	var prepend = '';
	var append = '';
	var tags = new Array();
	tags = {'font' : 'face=', 'size' : 'size=', 'color' : 'color='};
	for(bbcode in tags) {
		optionvalue = fetchoptionvalue(tags[bbcode], fontoptions);
		if(optionvalue) {
			prepend += '[' + bbcode + '=' + optionvalue + ']';
			append = '[/' + bbcode + ']' + append;
		}
	}
	parsestyle(fontoptions, prepend, append);
	return prepend + recursion('font', text, 'fonttag') + append;
}

function simpletag(options, text, tagname, parseto) {
	if(trim(text) == '') {
		return '';
	}
	text = recursion(tagname, text, 'simpletag', parseto);
	return '[' + parseto + ']' + text + '[/' + parseto + ']';
}

function spantag(spanoptions, text) {
	prepend = '';
	append = '';
	parsestyle(spanoptions, prepend, append);
	return prepend + recursion('span', text, 'spantag') + append;
}

function ptag(poptions, text) {
	align = getoptionvalue('align', poptions);

	switch(align) {
		case 'left':
		case 'center':
		case 'right':
			break;
		default:
			align = '';
	}

	prepend = '';
	append = '';
	parsestyle(poptions, prepend, append);
	if(align) {
		prepend += '[align=' + align + ']';
		append += '[/align]';
	}
	append += "\n";

	return prepend + recursion('p', text, 'ptag') + append;
}

function litag(listoptions, text) {
	return '[*]' + text.replace(/(\s+)$/g, '');
}

function listtag(listoptions, text, tagname) {

	text = text.replace(/<li>((.(?!<\/li))*)(?=<\/?ol|<\/?ul|<li|\[list|\[\/list)/ig, '<li>$1</li>') + (is_opera ? '</li>' : '');

	text = recursion('li', text, 'litag');

	if(tagname == 'ol') {
		listtype = fetchoptionvalue('type=', listoptions) ? fetchoptionvalue('type=', listoptions) : 1;
		if(listtype == '1' || listtype == 'a' || listtype == 'A') {
			opentag = '[list=' + listtype + ']';
		}
	} else {
		opentag = '[list]';
	}
	return text ? opentag + recursion(tagname, text, 'listtag') + '[/list]' : false;
}

function recursion(tagname, text, dofunction, extraargs) {
	if(extraargs == null) {
		extraargs = '';
	}
	tagname = tagname.toLowerCase();

	var open_tag = '<' + tagname;
	var open_tag_len = open_tag.length;
	var close_tag = '</' + tagname + '>';
	var close_tag_len = close_tag.length;
	var beginsearchpos = 0;

	do {
		var textlower = text.toLowerCase();
		var tagbegin = textlower.indexOf(open_tag, beginsearchpos);
		if(tagbegin == -1) {
			break;
		}

		var strlen = text.length;

		var inquote = '';
		var found = false;
		var tagnameend = false;
		var optionend = 0;
		var t_char = '';

		for(optionend = tagbegin; optionend <= strlen; optionend++) {
			t_char = text.charAt(optionend);
			if((t_char == '"' || t_char == "'") && inquote == '') {
				inquote = t_char;
			} else if((t_char == '"' || t_char == "'") && inquote == t_char) {
				inquote = '';
			} else if(t_char == '>' && !inquote) {
				found = true;
				break;
			} else if((t_char == '=' || t_char == ' ') && !tagnameend) {
				tagnameend = optionend;
			}
		}

		if(!found) {
			break;
		}
		if(!tagnameend) {
			tagnameend = optionend;
		}

		var offset = optionend - (tagbegin + open_tag_len);
		var tagoptions = text.substr(tagbegin + open_tag_len, offset)
		var acttagname = textlower.substr(tagbegin * 1 + 1, tagnameend - tagbegin - 1);

		if(acttagname != tagname) {
			beginsearchpos = optionend;
			continue;
		}

		var tagend = textlower.indexOf(close_tag, optionend);
		if(tagend == -1) {
			break;
		}

		var nestedopenpos = textlower.indexOf(open_tag, optionend);
		while(nestedopenpos != -1 && tagend != -1) {
			if(nestedopenpos > tagend) {
				break;
			}
			tagend = textlower.indexOf(close_tag, tagend + close_tag_len);
			nestedopenpos = textlower.indexOf(open_tag, nestedopenpos + open_tag_len);
		}

		if(tagend == -1) {
			beginsearchpos = optionend;
			continue;
		}



		var localbegin = optionend + 1;
		var localtext = eval(dofunction)(tagoptions, text.substr(localbegin, tagend - localbegin), tagname, extraargs);

		text = text.substring(0, tagbegin) + localtext + text.substring(tagend + close_tag_len);

		beginsearchpos = tagbegin + localtext.length;

	} while(tagbegin != -1);

	return text;
}

function imgtag(attributes) {
	var width = '';
	var height = '';

	re = /src=(["']?)([\s\S]*?)(\1)/i;
	var matches = re.exec(attributes);
	if(matches != null) {
		var src = matches[2];
	} else {
		return '';
	}

	re = /width=(["']?)(\d+)(\1)/i;
	var matches = re.exec(attributes);
	if(matches != null) {
		width = matches[2];
	}

	re = /height=(["']?)(\d+)(\1)/i;
	var matches = re.exec(attributes);
	if(matches != null) {
		height = matches[2];
	}

	re = /aid=(["']?)attach_(\d+)(\1)/i;
	var matches = re.exec(attributes);
	var imgtag = 'img';
	if(matches != null) {
		imgtag = 'localimg';
		src = matches[2];
	}
	return width > 0 && height > 0 ?
		'[' + imgtag + '=' + width + ',' + height + ']' + src + '[/' + imgtag + ']' :
		'[img]' + src + '[/img]';
}


function tabletag(attributes) {
	var width = '';
	re = /width=(["']?)(\d{1,3}%?)(\1)/ig;
	var matches = re.exec(attributes);
	if(matches != null && matches.length) {
		width = matches[2].substr(matches[2].length - 1, matches[2].length) == '%' ?
			(matches[2].substr(0, matches[2].length - 1) <= 98 ? matches[2] : '98%') :
			(matches[2] <= 560 ? matches[2] : '560');
	} else {
		re = /width\s?:\s?(\d{1,3})([px|%])/ig;
		var matches = re.exec(attributes);
		if(matches != null && matches.length) {
			width = matches[2] == '%' ? (matches[1] <= 98 ? matches[1] : '98%') : (matches[1] <= 560 ? matches[1] : '560');
		}
	}
	return width == '' ? '[table]' : '[table=' + width + ']';
}

function tdtag(attributes) {

	var colspan = 1;
	var rowspan = 1;
	var width = '';

	re = /colspan=(["']?)(\d{1,2})(\1)/ig;
	var matches = re.exec(attributes);
	if(matches != null) {
		colspan = matches[2];
	}

	re = /rowspan=(["']?)(\d{1,2})(\1)/ig;
	var matches = re.exec(attributes);
	if(matches != null) {
		rowspan = matches[2];
	}

	re = /width=(["']?)(\d{1,3}%?)(\1)/ig;
	var matches = re.exec(attributes);
	if(matches != null) {
		width = matches[2];
	}

	return width == '' || width == 0 || width == '100%' ?
		(colspan == 1 && rowspan == 1 ? '[td]' : '[td=' + colspan + ',' + rowspan + ']') :
		'[td=' + colspan + ',' + rowspan + ',' + width + ']';
}


function ParseSmilies(){
	if (!smilies.length){
		return;
	}
	
	//document.write(arguments[0]);
	for (i=0;i<smilies.length;i++){
		if (smilies[i][0]==arguments[1]){
			return smilies[i][1];
		}
	}
	
	return arguments[0];
}

function html2bbcode(str) {

	str = trim(str);

	if(str == '') {
		return str;
	}

	str= str.replace(/\s*\[code\]([\s\S]+?)\[\/code\]\s*/ig, function($1, $2) {return codetag($2);});