antlrworks

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The following alternatives can never be reached: 2

I\'m trying to create a very simple grammar to learn to use ANTLR but I get the following message: \"The following alternatives can never be reached: 2\"[详细]

2023-03-12 15:53 分类：问答
Iterating/processing a list of Tokens parsed in ANTLR

I have a rule ((cns=IDENT \'->\')* IDENT | (cns=IDENT \'->\')* \'STOP\') 开发者_运维知识库-> ^(PREFIX ^(EVENTS $cns*) ^(ENDS $procn? STOP?))[详细]

2023-03-11 01:58 分类：问答
Non-empty closures and the question mark: only first element is put into the AST?

I\'m haunted by a strange phenomenon: Only the first in x in z: x | \'<\'! y? \'>\', where y: x (\',\'! x)*, occurs in the resulting AST. But only if I compile the code using Antlr3 as deployed[详细]

2023-03-09 20:02 分类：问答
Why this error happened? - "The following alternatives can never be matched"

I\'m interested in making compiler, parser, and parser generator, but I don\'t know much about them. After reading an answer of this question, I t开发者_JAVA技巧ried to make a \'very\' simple LaTeX p[详细]

2023-03-07 14:18 分类：问答
antlr3 - Generating a Parse Tree

I\'m having trouble figuring out the antlr3 API so I can generate and use a parse tree in some javascript code. When I open the grammar file using antlrWorks (their IDE), the interpreter is able to sh[详细]

2023-03-05 16:59 分类：问答
Parsing Newlines, EOF as End-of-Statement Marker with ANTLR3

My question is in regards to running the following grammar in ANTLRWorks: INT :(\'0\'..\'9\')+; SEMICOLON: \';\';[详细]

2023-02-26 01:27 分类：问答
Writing ANTLR grammar for parsing java file

I am new to ANTLRWorks and I am doin开发者_JAVA技巧g my final year project. Could anyone please help me in how to write ANTLR grammar just for recognising a class in java \"and printing it in any file[详细]

2023-02-22 18:38 分类：问答
Parsing expressions with subexpressions in ANTLR

I am trying to parse recursive expressions in ANTLR such as: (a + (b + C)) or ((a + b)) I read this supposed solution:[详细]

2023-02-22 10:08 分类：问答
Antlr question: cannot get Antlr tool to compile simple file from ANTLRWorks

Here is the grammar file: grammar fred; test:\'fred\'; Here is the batch file to launch the tool: SET JAVA_HOME=C:\\Program Files\\Java\\jdk1.6.0_24[详细]

2023-02-17 18:04 分类：问答
Why is my ANTLR grammar file for Java not compiling?

I have been given an ANTLR grammar for a subset of the Java compiler known as the static Java compiler. I am trying to extend the grammar to include more of Java\'s features, for instance, I just adde[详细]

2023-02-15 09:23 分类：问答