Consider following grammar: $$X\to Yc|ZY$$ $$Y\to ab|cX$$ $$Z\to d|\epsilon$$ Can this be converted to LL(1)? Cleary, its not LL(1) because of First/First conflict at first production. Can anyone ...
Have read in Compiler textbook that type inference is context sensitive. Can anyone explain why is it so? This means that we need context sensitive grammar in semantic analysis phase of a compiler ...
I'm being asked to create a "top down grammar" for a certain language (I'm pretty sure there's no such thing as a "top down grammar" but I think it means write a grammar that an LL(k) parser can ...
I got one grammar: ...
The following DFA is a lexical analyzer which is supposed to recognize comments. The lexical analyzer will ignore the comment and goes back to the state one. I'm told that there's something wrong with ...
Originally http://math.stackexchange.com/questions/22614/help-understand-texthandle-in-parsing-problem but unaswered there The BNF is defined as followed: ...
I want to parse user-defined domain specific languages. These languages are typically close to mathematical notations (I am not parsing a natural language). Users define their DSL in a BNF notation, ...