grammar AdifyMapReducePredicate; PREDICATE :PREDICATE_BRANCH |EXPRESSION ; PREDICATE_BRANCH :\'(\' PREDICATE ((\'&&\' PREDICATE)+ | (\'||\' PREDICATE)+) \')\'
I have an ANTLR rule like this receive returns[Evaluator e,String message] : RECEIVE FILENAME {$e= new ReceiveEvaluator($FILENAME.text);}
What is the purpose of using AST while building a compiler (with ANTLR). Is it necessary to have one? What is th开发者_开发百科e so called TreeParser and how can one use it? Is it possible to build a
I have to generate parser of CSV data. Somehow I managed to write BNF, EBNF for CSV data but I don\'t know how to convert this into an ANTLR grammar 开发者_StackOverflow中文版(which is a parser genera
Does anyone know anything about how Antlr works? I\'m getting an error on a dev server: [NullReferenceException: Object reference not set to an instance of an object.]
I am trying to do a syntax text corrector for my compilers\' class. The idea is: I have some rules, which are inherent to the language (in my case, Portuguese), like \"A valid phrase is SUBJECT VERB A
I would like to parse a binary file and specify the characters in hex format instead of unicode, is thi开发者_运维问答s possible?
What is a semantic predicate开发者_开发百科 in ANTLR?ANTLR 4 For predicates in ANTLR 4, checkout these stackoverflow Q&A\'s:
In Antlr, if I have a rule for example: someRule : TOKENA TOKENB; it would accept : \"tokena tokenb\" if I would like TOKENA to be optional, I can say,
I have been trying for a few days to parse some text that consists of text and numbers (I\'ve called it a sentence in my grammar).
加载中,请稍侯......