I was开发者_开发技巧 having difficulty figuring out what does ^ and ! stand for in ANTLR grammar terminology.Have a look at the ANTLR Cheat Sheet:
I am wondering where is the borderline between grammar specification and semantic analysis. What is better: to use a detailed grammar description or leave the details for semantic phase? For example:
Alright, I\'m trying to understand follow sets and I think I got it except for one thing: X -> a X X -> b X
I\'m looking into writing a C++ database library that will run on top of either ODBC or on top of another library that itself uses ODBC (possibly DTL, OTL, or SOCI).At this point I need to know what S
Can you give me 2 different grammars which outputs the same set of words? Illustration: Given a grammar A and B over the alphabet {0,1}, if grammar A can produce the word 0101001, grammar B could as
I have the following simple expression parser: expr(+(T,E))-->term(T),\"+\",expr(E). expr(T)-->term(T).
I have the following Prolog definite clause grammar: s-->[a],s,[b]. s-->[]. This will result in words like [a,a,b,b] being accepted in opposite to words like [a,b,a,b]. To put it in a nutshel
I\'d like to build a poker hand-range parser, whereby I can provide a string such as the following (assume a standard 52-card deck, ranks 2-A, s = suited, o = offsuit):
This is a follow up question from Grammar: difference between a top down and bottom up? I understand from that question that:
I\'m using CUP to开发者_如何学C create a parser that I need for my thesis. I have a shift/reduce conflict in my grammar. I have this production rule:
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