Multiple Language Variants in Language Definition

Hi Sven,

Your two options for this scenario would be:

1) Make separate copies of the entire language definition, as you said.  The downside there is that anytime you change common patterns, you'd have to update each copy.

2) Make a single copy of the language definition and put keys on some empty pattern groups that will receive language-specific words.  This way you could load up your stub language definition.  Then via code, navigate down the DynamicLexer object model into the appropriate DynamicLexicalState and  find the pattern groups that need updating.  Then add the appropriate language words to each of the pattern groups.  By doing this, you would only have to maintain a single language definition and then you would have a separate language-specific word list.

The "Text/Parsing Framework / Lexing / Basic Concepts" has a section in it about how to change mergable lexers.  You need to wrap all the changes mentioned above with the using statement discussed there.

I hope that helps.

Works like a charm, thank you very much !!