[antlr-interest] lexical question
Stephen Siegel
siegel at udel.edu
Tue May 29 17:24:15 PDT 2012
Consider the following grammar:
--------------------------------------
grammar dots;
r : (DOT | ELLIPSIS)*;
DOT : '.';
ELLIPSIS: '...';
--------------------------------------
When given input "..", ANTLR says "expecting '.' but saw 'EOF'".
What I would like it to see is two DOTs.
What would be the "right" way to fix the problem? Backtrack=true?
Thanks,
Steve
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