[TxMt] Language definition merge?

[Allan Odgaard]

On 10/09/2005, at 21.20, Gerd Knops wrote:

> Are language definitions merged?

No -- I'd love to do so, but I don't see how this could be done safely.

> There are a few languages where I have some 'private' rules. Is it  
> possible to write them in such a way that these are merged with  
> whatever language definition is found 'higher up', so that I can  
> easily enjoy updates from the svn repository without having to  
> modify that definition each time?

You can do a stub, e.g.:

     {   scopeName = "source.java.my-extension";
         foldingStartMarker = "...";
         foldingStopMarker = "...";
         patterns = (
             {   name = "my-private-rule.java";
                 match = "...";
             },
             {   include = "source.java"; },
         );
     }

Then select your stub for java files.

Starting with next build, rules are solely chosen based on order in  
the grammar, so it'll then be possible to overload stuff in the  
included grammar, even when the match is shorter than that in the  
include.