[il-antlr-interest: 27343] [antlr-interest] Problems with first example
Hello, I'm new to Antlr and am trying to work through the Definitive Guide. I can't seem to get the first example to work. I create the .g file and lexer and parser classes fine. I compile my example test program fine. And it runs fine. Except for one minor problem - it doesn't work. I put a few debug lines in the code and it gets hung up on the line: ANTLRInputStream input = new ANTLRInputStream(System.in); It never seems to move past this line. The code used is copied from the book,page 10 - 12. Bill List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups il-antlr-interest group. To post to this group, send email to il-antlr-inter...@googlegroups.com. To unsubscribe from this group, send email to il-antlr-interest+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.
[il-antlr-interest: 27344] Re: [antlr-interest] Problems with first example
Greetings! On Mon, 2009-12-21 at 09:08 -0500, Bill Ramsay wrote: Hello, I'm new to Antlr and am trying to work through the Definitive Guide. I can't seem to get the first example to work. I create the .g file and lexer and parser classes fine. I compile my example test program fine. And it runs fine. Except for one minor problem - it doesn't work. I put a few debug lines in the code and it gets hung up on the line: ANTLRInputStream input = new ANTLRInputStream(System.in); It never seems to move past this line. The code used is copied from the book,page 10 - 12. System.in is java-speak for the standard input device which, unless you have redirected it, is your keyboard. So this line is establishing a I/O connection with the keyboard in order to read in text to be parsed. It would seem that everything is working just fine. You simply need to type some text into your keyboard so that the example grammar may parse it for you (or re-direct stdin to a disk file). Hope this helps... -jbb List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups il-antlr-interest group. To post to this group, send email to il-antlr-inter...@googlegroups.com. To unsubscribe from this group, send email to il-antlr-interest+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.
[il-antlr-interest: 27345] Re: [antlr-interest] Are embedded actions are allowed in StringTemplate? (+)
They are retargetable for specifically that reason. Sounds like you should check out my papers on separability and my talks on retargetability. Note that ANTLR has one code generator and multiple template groups to handle the multiple targets. proof one might say. Ter On Dec 20, 2009, at 11:17 PM, Дмитрий Волосных wrote: Yes, but in this case the translation logic intended by the target- language won't be enclosed in a stg-file, what contradicts with claimed idea of retargetable code generators. 21 декабря 2009 г. 4:41 пользователь Terence Parr pa...@cs.usfca.edu написал: if(v)...endif but v must be computed in model and pushed into templates. Ter On Dec 20, 2009b, at 1:41 PM, Дмитрий Волосных wrote: Especially, I am intereseted in altering genereted text depending on the value of some parameter of the template. List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups il-antlr-interest group. To post to this group, send email to il-antlr-inter...@googlegroups.com. To unsubscribe from this group, send email to il-antlr-interest+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en. List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address
[il-antlr-interest: 27346] Re: [antlr-interest] Problems with first example
and don't forget hitting ctrl-z for EOF if you're a PC person or ctrl- d if you're a unix guy, as gawd intended ;) Ter On Dec 21, 2009, at 6:30 AM, John B. Brodie wrote: Greetings! On Mon, 2009-12-21 at 09:08 -0500, Bill Ramsay wrote: Hello, I'm new to Antlr and am trying to work through the Definitive Guide. I can't seem to get the first example to work. I create the .g file and lexer and parser classes fine. I compile my example test program fine. And it runs fine. Except for one minor problem - it doesn't work. I put a few debug lines in the code and it gets hung up on the line: ANTLRInputStream input = new ANTLRInputStream(System.in); It never seems to move past this line. The code used is copied from the book,page 10 - 12. System.in is java-speak for the standard input device which, unless you have redirected it, is your keyboard. So this line is establishing a I/O connection with the keyboard in order to read in text to be parsed. It would seem that everything is working just fine. You simply need to type some text into your keyboard so that the example grammar may parse it for you (or re-direct stdin to a disk file). Hope this helps... -jbb List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups il-antlr-interest group. To post to this group, send email to il-antlr-inter...@googlegroups.com. To unsubscribe from this group, send email to il-antlr-interest+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.
[il-antlr-interest: 27349] Re: [antlr-interest] illegal option output and ! operator
It used to work in ANTLR 2, though
Gavin Lambert wrote:
At 03:45 19/12/2009, Rick Schumeyer wrote:
The following rule generates an illegal option output error
when I attempt to generate code in antrlworks 1.3.1.
EQUOTE:'\\'! '';
I see that others have had the same problem, but I couldn't find
the solution.
Is the ! operator supposed to work in a non-AST grammar?
No, and not in the lexer. Instead of using !, you need to
explicitly set the text of the token via { $text = xxx; } or {
setText(xxx); } or something similar, depending on your target
language. See the examples and the wiki.
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