antlr: is there a simple example ?

Posted by Eli on Stack Overflow See other posts from Stack Overflow or by Eli
Published on 2009-12-18T23:35:16Z Indexed on 2010/04/21 15:43 UTC
Read the original article Hit count: 363

Filed under:

antlr

|

examples

I'd like to get started with antlr, but after spending a few hours reviewing the examples at the antlr.org site, I still cant get a clear understanding of the grammar to java process.

is there some simple example? something like a four operations calculator implemented with antlr going through the parser definition and all the way to the java source code?

© Stack Overflow or respective owner

Related posts about antlr

Antlr question: cannot get Antlr tool to compile simple file from ANTLRWorks

as seen on Stack Overflow - Search for 'Stack Overflow'
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… >>> More
Improving ANTLR DSL parse-error messages

as seen on Stack Overflow - Search for 'Stack Overflow'
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… >>> More
ANTLR - accessing token values in c/c++

as seen on Stack Overflow - Search for 'Stack Overflow'
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… >>> More
Removing Left Recursion in ANTLR

as seen on Stack Overflow - Search for 'Stack Overflow'
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… >>> More
Jar not found when executing class

as seen on Stack Overflow - Search for 'Stack Overflow'
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… >>> More

Related posts about examples

Why does Ubuntu's Nautilus display a folder called "Examples" while the console displays "examples.desktop"

as seen on Super User - Search for 'Super User'
These folders occur at /home/username. How does this name discrepancy arise? (Uppercase E versus lowercase e.) It seems to be a shortcut to /usr/share/example-content. How can I delete /usr/share/example-content/Ubuntu_Free_Culture_Showcase without using the command line? One possible answer… >>> More
Compiling examples for consuming the REST Endpoints for WCF Service using Agatha

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
I recently made two contributions to the Agatha Project by Davy Brion over on Google Code, and one of the things I wanted to follow up with was a post showing examples and some, seemingly required tid bits. The contributions which I made where: To support StructureMap To include REST… >>> More
Advanced SQL Server 2008 Extended Events with Examples

as seen on SQL Team - Search for 'SQL Team'
In the previous article we learned about SQL Server 2008 Extended Events terminology, components and took a look at a simple example. In this article we'll take a deeper look with some more complex examples. >>> More
Inspiring problems to show off the importance of regular expressions?

as seen on Programmers - Search for 'Programmers'
I am planning to give a presentation/demonstration on regular expressions at work to encourage young developers to add this powerful and important tool in their toolbox. Just teaching syntax doesn't cut it. I often see people say nice. After the presentation, they get on with their programming lives… >>> More
Understanding node.js: some real-life examples

as seen on Programmers - Search for 'Programmers'
Hi all! As a curious web developer I've been hearing about node.js for several months and (just) now I'd like to learn it and, most of all, understand its "engine". So, as a real newbie about node.js I'm going to follow some tutorials. And as every new technology over the internet, find a very good… >>> More