I need a regular expression to substitute pseudo html in .NET

I have texts like this one:

this is a text in [lang lang="en" ]english[/lang] or a text in [lang lang="en" ]spanish[/lang]

I need to substitute them for:

this is a text in <span lang="en">english </span> or a text in <span lang="es">spanish</span>

I need a regular ex开发者_JAVA百科pression, not a simple replace. The languages in the lang tag can be whatever.

Regex:

\[lang lang="([^"]*)" \](.*?)\[/lang\]

Replacement:

<span lang="$1">$2 </span> 

You could simply replace [/lang] with </span> and use

Regex.Replace(text, @"\[lang lang=""(\w+)""\]", "<span lang=\"$1\">")

to replace the opening tag.