function ubb2xhtml($ubb)
{
$flash=<<<END
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" width="%1\$d" height="%2\$d">
<param name="movie" value="%3\$s" />
<param name="quality" value="high" />
<embed src="%3\$s" width="%1\$d" height="%2\$d" quality="high" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer"></embed>
</object>
END;
$match = array
(
'%[email=([^s])+](.*?)[/email]%i',
'%[img width=(d+) height=(d+)](.*?)[/img]%s',
'%[img=([^s]+)/]%s',
'%[flash width=(d+) height=(d+)](.*?)[/flash]%se',
'%[(b|i|u|strike|sup|sub)](.*?)[/1]%s',
'%[h([1-6])](.*?)[/h1]%s',
'%[hr/]%s',
'%+)](.*?)%s',
'%+)](.*?)%s',
'%+)](.*?)%s',
'%[align=(center|right|left)](.*?)[/align]%s',
'%[valign=(middle|top|bottom)](.*?)[/valign]%s',
/*
'%[ul](.*?)[/ul]%s',
'%[ul=(circle|disc|square)](.*?)[/ul]%s',
'%[ol](.*?)[/ol]%s',
'%[ol type=([aAiI1]) start=([a-zA-Z1-9])](.*?)[/ol]%s',
'%[li](.*?)[/li]%s',
*/
'%[table=([^s]+?)](.*?)[/table]%s',
'%[caption](.*?)[/caption]%s',
'%[tr=([^s]+?)](.*?)[/tr]%s',
'%[th](.*?)[/th]%s',
'%[td](.*?)[/td]%s',
'%[note](.*?)[/note]%s',
'%[quote=(.*?)](.*?)[/quote]%s',
'%[code](.*?)[/code]%s',
'%[ ]{2}%s', // make double-spaces truly double-spaces!
);
$replace = array
(
'<a href="1" target="_blank">2</a>',
'<a href="[url=mailto:1]mailto:1" target="_blank">\2</a>',
'<img src="\3" width="\1" height="\2" border="0" />',
'<img src="\1" border="0" />',
'sprintf("$flash", "\1", "\2", "\3")',
'<\1>\2</\1>',
'<h\1>\2</h\1>',
'<hr>\n',
'<font color="\1">\2</font>',
'<font face="\1">\2</font>',
'<font size="\1">\2</font>',
'<div align="\1">\2</font>',
'<div valign="\1">\2</font>',
/*
'<ul>\1</ul>',
'<ul type="\1">\2</ul>',
'<ol>\1</ol>',
'<ol type="\1" start="\2">\3</ol>',
'<li>\1</li>',
*/
"<table class=\"$1\" cellspacing=\"1\">\n$2</table>",
"\t<caption>$1</caption>\n",
"\t<tr class=\"$1\">\n$2\t</tr>\n",
"\t\t<th>$1</th>\n",
"\t\t<td>$1</td>\n",
'<div class="note"><span class="hint">发布者备注</span><hr />\1</div>',
'<div class="quote"><span class="hint">引用</span>(来源: <a href="\1" target="_blank">\1</a>)<br />\2</div>',
'<span class="hint" style="margin-left: 10px">代码</span><div class="code">\1</div>',
' ',
);
if( preg_match('%\[table=(.*?)\/table\]%s', $ubb, $tablecells) ) //如果有表格, 先去除单元格之间的多余空白
{
$bb=preg_replace('%\]([\r\n\s]*)\[%si', '][', $tablecells[1]);
$ubb=str_replace($tablecells[1], $bb, $ubb);
}
$html = preg_replace($match, $replace, nl2br(htmlspecialchars($ubb)));
$html = preg_replace('/<br \/>\s*<(td|th|tr|table|ul|ol|li)/m', "\n".'<\1', $html);
return $html;
}
