[antlr-interest] All say that literal strings in parser rules are doing harm. Why?
Stefan.Maetje at esd-electronics.com
Tue Feb 28 03:08:02 PST 2012
Dear list members,
often I read on this list that including literal strings in parser rules is
not recommended. Doing this would provoke problems and make error reporting
Could somebody explain the possible problems and drawbacks to me. All postings
I found on the list so far sound a little bit vague to me.
Can somebody please point me to a discussion or example grammar where the pros
and cons are displayed more thoroughly?
At the moment I have a somewhat mixed grammar file (around 1800 lines) with in
part using lexer tokens and in part using string literals in the parser rules.
Especially I do that if the keyword exists only in a single rule.
More information about the antlr-interest