I have a question about recursive data structures in Haskell (language thatI\'m currently trying to learn).
This was a homework assignment problem which I know I have incorrectly answered.I gave: S -> \'\' meaning that S yields the empty string.I know that the empty set and empty string are not the sa
What are the rules for constructing a deterministic finite automata in the form of a diagram? My professor explained by 开发者_如何学JAVAexamples, but I am not exactly sure what rules must be followed
I am trying to parse C++/Java style source files and would like to isolate comments, string literals, and whitespaces as tokens.
I\'m trying to write a grammar to evaluate expressions. I\'ve started with the given example on the ANTLR website (it manage +,- and *).
I am using the newest ANTLR.I get this error message while trying to debug this grammar: grammar Grammar;
Example String 023abc7defghij Header Characters 0, 1 = Size of following chunks Chunks First character = length of following string String
The JSON syntax is an example of a CFG (Context free grammar). Va开发者_JS百科lid JSON strings are a sequence of tokens constrained to a CFG... or, the tokens can -equivalently- be thought of as a st
I understand how the difference between the two, how ambiguity means that t开发者_如何学Gohere is at least one string with 2 distinct parse trees while there is only one in an unambiguous tree. But I
after searching the web i could not find an attribute grammar system for F#. Well there is fsyacc with inherited attributes but i am looking for something more expressive like Ox (Ox manual). Actually
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