[antlr-interest] Inherit grammar and specify base scanner class at the same time

[Stanimir Stamenkov]

Hello,

I'm new to the ANTLR framework and I'm currently trying to generate 
a lexer which employs grammar inheritance and specifies to be of 
specific |antlr.CharScanner| subtype, at the same type. I've tried 
both of these work:

class MyLexer extends SuperLexer;

or:

class MyLexer extends Lexer("name.stanio.MyScanner");

But I want the effect of both at the same time, so I've first tried 
specifying the scanner class on the super grammar as:

class SuperLexer extends Lexer("name.stanio.MyScanner");

but the generated "MyLexer" was direct subclass of 
|antlr.CharScanner| again. Then I've tried:

class MyLexer extends SuperLexer("name.stanio.MyScanner");

but I get error:

.\expandedmylexer.g:5:23: rule classDef trapped:
.\expandedmylexer.g:5:23: expecting "Parser", found '('
error: aborting grammar 'unknown grammar' due to errors

I see line 5 in the generated "expandedmylexer.g":

class MyLexer extends ("name.stanio.MyScanner");

while normally (using the first declaration for grammar inheritance 
I've pointed) in that file I see:

class MyLexer extends Lexer;

Is it possible what I'm trying?

-- 
Thank you in advance,
Stanimir