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Published on 2010-06-16T19:16:48Z
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What is a semantic predicate in ANTLR?
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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
SET PATH=%PATH%;%JAVA_HOME%\bin
SET ANTLR_HOME=c:/users/don/workspace/antlrAssign/lib/
java -cp %ANTLR_HOME%/antlr-3.3-complete.jar antlr.Tool…
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I'm working on a domain-specific language (DSL) for non-programmers. Non-programmers make a lot of grammar mistakes: they misspell keywords, they don't close parentheses, they don't terminate blocks, etc.
I'm using ANTLR to generate my parser; it provides a nifty mechanism for handling RecognitionExceptions…
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Hello,
I am trying to parse integers and to access their value in antlr 3.2.
I already found out how to do this in Java:
//token definition
INT : '0'..'9'+;
//rule to access token value:
start : val=INT {Integer x = Integer.valueOf( $val.text ).intValue(); }
;
... but I couldn't…
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As is explained in http://stackoverflow.com/questions/2652060/removing-left-recursion , there are two ways to remove the left recursion.
Modify the original grammar to remove the left recursion using some procedure
Write the grammar originally not to have the left recursion
What people normally…
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Hi there,
I'm working through the ANTLR book and there are many examples that should be easy to compile using the command line.
Some information to get te problem:
antlr-3.2.jar contains the ANTLR classes. I added the antlr-3.2.jar to the CLASSPATH environment variable (Windows 7) and when compiling…
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