Added support for recognizing "command://" urls.

Sigh. So not standard.
I suppose I could devise a whole system for registering protocols, and
adding registered protocols to this regexp, but we'll never have another
one of these and this is just easier for now.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4709 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/as/com/threerings/util/StringUtil.as

@@ -237,6 +237,7 @@ public class StringUtil
 
     /** A regular expression that finds URLs. */
     protected static const URL_REGEXP :RegExp =
-        new RegExp("(http|https|ftp)://\\S+", "i");
+        // recognize some standard protocols, plus 'command', which we use internally
+        new RegExp("(http|https|ftp|command)://\\S+", "i");
 }
 }