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1. 

   cassiosaldanha
   Member

   I'm trying to make a language definition using ".schmedef" and have some questions about this kind of definition:
   1. Is there a way to define my own operators?
   2. What kind of regex syntax is supported by the "start" and "content" properties on "identifiers", "identifiers2" and "numbers" tags? As far as I've seen... it seems this properties only check a character and are used at first character check (start) and then at each character after the first one (content). Is is not possible to define a more complex start... such as... token "$" and a lowercase letter? It would be something like start="($[a-z])+".
   3. Languages defined in a "schemedef" are also available to be used as base-languages?
   4. Can a language defined in a "schemedef" point a base-language (that perhaps is also defined in a "schmedef" file)?

   Thank you in advance!

   Posted 3 years ago #
2. 

   simon
   PN Developer

   1. Currently no.
   2. It's just a character set identifier, not a regular expression - that's why you can't use the expression you're trying to.
   3 & 4. Currently not in the way you are suggesting, although this wouldn't be too difficult to support. You could request the feature.

   You could create the language using schemedef, and then in the same file define a base-language that used the same lexer name. You could then have other languages in the same file inherit from that base-language.

   Posted 3 years ago #
3. 

   cassiosaldanha
   Member

   Thanks for the answers Simon. I'll try your suggestion on creating a base-language on same "schemedef" file... then creating separated "scheme" file using the base-language of the "schemedef": nice trick.

   Posted 3 years ago #

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