转换ubb代码的一个函数

unction ubb2html($content)
{
global $article;
//是否自动识别
if ($article['isparseurl'] == "1")
{
$content = parseurl($content);
}
//自动识别结束
$content = eregi_replace(quotemeta("[b]"),quotemeta(""),$content);
$content = eregi_replace(quotemeta("[/b]"),quotemeta("
$content = eregi_replace(quotemeta("[i]"),quotemeta(""),$content);
$content = eregi_replace(quotemeta("[/i]"),quotemeta("
$content = eregi_replace(quotemeta("[u]"),quotemeta(""),$content);
$content = eregi_replace(quotemeta("[/u]"),quotemeta("
$content = eregi_replace(quotemeta("[center]"),quotemeta(""),$content);$content = eregi_replace(quotemeta("[/center]"),quotemeta("
"),$content);
$content = eregi_replace(quotemeta("[quote]"),quotemeta("
引用:

"),$content);$content = eregi_replace(quotemeta("[/quote]"),quotemeta("

"),$content);
$content = eregi_replace(quotemeta("[code]"),quotemeta("
代码:

"),$content);$content = eregi_replace(quotemeta("复制代码"),quotemeta("

"),$content);
$content = eregi_replace("\[images\]([^\[]*)\[/images\]","screen.width-333)this.width=screen.width-333" title="用新窗口浏览原始图片">",$content);
 
$content = eregi_replace("\[url\]www.([^\[]*)\[/url\]", "www.\1",$content);
$content = eregi_replace("\[url\]([^\[]*)\[/url\]","\1",$content);
$content = eregi_replace("\[url=([^\[]*)\]([^\[]*)\[/url\]","\2",$content);
$content = eregi_replace("\[email\]([^\[]*)\[/email\]", "\1",$content);
//$content = preg_replace( '/javascript/i', 'java script', $content);
return $content;
}[/code]