Re: Character classes -- what about them -- need to support them?

Hi, While looking at upgrading some packages, specifically getting go(lang)-mode to work with XEmacs, I have come across the character classes like [[:space:]] [[:word:]] etc. We have this issue in the tracker: http://tracker.xemacs.org/XEmacs/its/issue302 What would it take to support these classes to get compatible with GNU Emacs? Major C-code change or what? It seems that many packages use these so it would make porting and syncing much easier. Especially since this things only show up in runtime. What also confuses me is that it seems we have support for them in regexps but not in functions like re-search-forward!? What is the story here? Yours