[antlr-interest] [antlr-dev] Antlr & Tree programming
indhu.b at s7software.com
Tue Nov 3 01:38:18 PST 2009
I guess this article might help you:
It has a good test rig.
From: antlr-interest-bounces at antlr.org
[mailto:antlr-interest-bounces at antlr.org] On Behalf Of Indhu Bharathi
Sent: Tuesday, November 03, 2009 3:02 PM
To: 'Tran Thi Que Nguyet'
Cc: 'ANTLR Interest Mailing List'
Subject: Re: [antlr-interest] [antlr-dev] Antlr & Tree programming
Moving this to antlr-interest.
What you do after that depends on what you want. Have you constructed an AST
in the grammar? Then to get the AST, you have to do this:
CommonTree t = (CommonTree)r.getTree();
And if you want to give this tree to a tree walker, you can do this:
// create a stream of tree nodes from AST built by parser
CommonTreeNodeStream nodes = new CommonTreeNodeStream(t);
// tell it where it can find the token objects
// create the tree Walker
MyWalker walker = new MyWalker (nodes);
// walk the tree
Though these are JAVA api, I guess those for C# has to be almost same. You
are not programming on a drastically different language like C.
Section 9.6 of ANTLR Definitive ref talks about this in detail.
From: antlr-dev-bounces at antlr.org [mailto:antlr-dev-bounces at antlr.org] On
Behalf Of Tran Thi Que Nguyet
Sent: Tuesday, November 03, 2009 2:50 PM
To: 'antlr-dev at antlr.org'
Subject: [antlr-dev] Antlr & Tree programming
My name is Tran. I'm doing research on my master thesis. But I have troubles
about how to analysis a sql script file *.sql which contains SQL and PL
After that, I knew ANTLR can be used to parse languages. And I also know
there is the PL/SQL grammar in the website.
But now, I want to know (after searching a lot but I didn't find out) how I
can use the result after using the method parse for the start rule?
I'm programming with C# (I cannot change into Java which has more
I want to retrieve which commands in the script, which objects are accessed,
which . How can I do? Can you show me some tutorials (step by step)?
I don't know what I can do after this?
ANTLRFileStream input = new ANTLRFileStream("test.sql");
PLSQL3Lexer lexer = new PLSQL3Lexer(input);
CommonTokenStream tokens = new CommonTokenStream(lexer);
PLSQL3Parser parser = new PLSQL3Parser(tokens);
PLSQL3Parser.start_rule_return r = parser.start_rule();
Thank you for all your help. I need you very much.
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