Hello! I'm in a dilly of a pickle here and can't seem to get any
answers on the web. My problem is one of EOF token recognition with
CUP.
When I define EOF as one of my terminals, CUP complains:
Duplicate terminal (EOF) created
So, I take it out, and CUP complains:
Error at 86(24): java_cup.runtime.Symbol "EOF" has not been declared
So what's this all about? Everything else works just fine if I remove
all references to that evil and allusive EOF symbol. The parse works
its way through, but then craps out due to a null pointer exception at
the end of file.
I am using JLex with the %cup compatibility flag and have the standard:
%eofval{
return new Symbol(sym.EOF);
%eofval}
in my lex file.
Can anyone offer any suggestions on how to proceed? Or point me in the
direction of someone or someplace that could give me a few suggestions?
Sikter
0
Newbie Poster
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Jump to PostYeah, ask at a site that pertains to this JLex and/or CUP thing you're using. I, myself, have never heard of them.
Truth be told, this problem doesn't seem to apply to Java, at all, but rather to these tools that you're using.
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masijade
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Sikter
0
Newbie Poster
masijade
1,351
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