I\'m trying to generate all terminal strings from a given file up to a certain length. So for instance, if you have something like
I am unable to understand why this simple grammar - grammar Test; file:ID; ID:.*; leads to this error - Test.g:3:6: The follo开发者_开发问答wing alternatives can never be matched: 1
I want to create regex which will validate xml node name. I have found grammar for names, but I don\'t know what some parts of it means. http://www.xml.com/pub/a/2001/07/25/namingparts.html
The intersection of a context-free language and a regular language is always context-free but context-free languages are not closed under set intersection. Could anyone explain why both theorems are t
What\'s your tip for an introduction to BNF grammar (and how to use them in practice)? Something concise with many examples would be great. Have been googling but only found enormously long artcles
Does anyone know of a program that does grammar induction? For exam开发者_高级运维ple, where can I find the source code for the REQUITER Context Free Grammar program? There are several implementations
I have these productions: S->aSb S-> eps(eps=empty string) I should apply the Chomsky Normal Form My reasoning:
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[Note: Rereading this before submitting, I realized this Q has become a bit of an epic. Thank you for indulging my long explanation of the reasoning behind this pursuit. I feel that, were I in a posit
I do need your help. I have these productions: 1) A--> aAb 2) A--> bAa 3) A--> ε I should apply the Chomsky Normal Form (CNF).