what is an ambiguous context free grammar? - Stack Overflow
2011年5月17日 · A grammar is ambiguous if it generates strings ambiguously. For example, the grammar S -> E + E | E * E is an ambiguous grammar as it derives the string x + x * x …
Why are ambiguous grammars bad? - Computer Science Stack …
2019年6月10日 · Parse NL with ambiguous grammar; For every resulting AST: run model generation to generate ambiguous semantic meanings and to rule out impossible syntactic …
ambiguity - Ambiguous grammar? - Stack Overflow
2013年3月18日 · hi there is this question in the book that said Given this grammer A --> AA | (A) | epsilon a- what it generates\\ b- show that is ambiguous now the answers that i think of is …
Ambiguous grammar (using Bison) - Stack Overflow
2011年8月11日 · I'm trying to convince Bison that it doesn't need to make the decision until later in the token stream by unifying the grammar for function calls and function definitions. In other …
Converting to unambiguous grammar from ambiguous grammar
2014年4月7日 · To justify your answer: tell your teacher: "In my second version grammar you have first generate all 1's then, once you more to s --> [0],a. production you can't add 1 in …
ambiguity - Ambiguous Grammar to Unambiguous Grammar
2014年10月30日 · The attribute "ambiguous" applies to grammars. There is no such thing as a "unambiguous language". What you want is an unambiguous grammar for the same language. …
Converting ambiguous grammar to unambiguous - Stack Overflow
2010年6月23日 · The unambiguous grammar was derived from the ambiguous one using information not specified in the ambiguous grammar: The operator '*' binds tighter than the …
why is this a ambiguous grammar? - Stack Overflow
2019年8月12日 · A grammar G is ambiguous iff some w in L(G) has more than one leftmost (or rightmost) derivation. You've shown one leftmost derivation for w=bbaa, so if you could show …
When is a grammar ambiguous or When is a grammar not …
2022年5月7日 · A grammar is ambiguous if it has more than one leftmost derivations for a sentence. That's equivalent to saying that it had more than one rightmost derivation for the …
Is this an ambiguous grammar? How should I resolve it?
2010年6月26日 · Anyways, I've been developing a context-free grammar to describe the structure of alegbraic expressions so I can teach myself how the CYK parsing algorithm works. I …