[antlr-interest] How to set filename in parser

[shmuel siegel]

My grammar parses the output of a c preprocessor. It interprets the 
#line directives so that syntax errors can be easily tracked back to the 
original file. My lexer sets the filename and linenumber parameters 
appropriately and then treats the directive like a single line comment. 
This works fine for the lexer; when an error occurs, the proper error 
message is printed. But the parser never finds out about this 
resequencing, so syntactical errors at the parser level do not reflect 
the original file information. Short of overriding the various match 
routines, is there any simple way to propagate the #line information 
from the lexer to the parser?


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