[antlr-interest] ANTLR Python and SemanticException

[Klaas Hofstra]

I think I have found a bug in ANTLR Python.

This rule:

type
  : t:ID { isTypeName(#t.getText()) }?
  ;

generates this python code for the parser:

if not  isTypeName(t_AST.getText()) :
    raise SemanticException(" isTypeName(t_AST.getText()) ")

This code does not run correctly because the global name 'SemanticException' 
is not defined. It needs to be replaced by antlr.SemanticException in order 
to work correctly.

I also came across a typo in the file examples/python/tinybasic/basic.g:

global numericUnaryExpression
:
        (
            p:PLUS^ {#p.setType(UNARY_PLUS);}
        |   m:MINUS^    {#m.setType(UNARY_PLUS);}
        )?  numericPrimaryExpression
    ;

I think the second UNARY_PLUS should be a UNARY_MINUS.

Cheers,
Klaas