Hi Terrence,
does that approach require extensions to ANTLR or ST? Are you defining the
object traversal in a declarative grammar instead of plain procedural code? Can
you specify predicates like "only process methods that have a certain Java
annotation applied"?
Could you just leak a bit more
Hi,
I am troubling to throw my-own-exception during tree parsing.
I have a tree rule - nothing too complicated.
Here is the snippet
expression returns [ Expression exp ] *throws* *ExpressionParseException*
: ^(op='+' a=expression b=expression ) { $exp =
NumericOperationExpression.createOperat
I guess I'm a bit confused about the issue you're having then. Between
having the package statement "package dot.grammar" and having your source
code in a "dot/grammar" folder structure, your classes should be in the
package. Do you actually have folders named "dot.grammar" ? But basically,
what
On Wednesday 03 December 2008 16:21, Oliver Zeigermann wrote:
> Folks!
>
> I need your support as I want to figure out where parsers
> and/or compilers are practically used these days.
>
> Any input highly appreciated.
Wouldn't the list of where they're used
_impractically_ be a lot shorter?
>
On Wed, 2008-12-03 at 20:26 -0600, Ashok Varikuti wrote:
> Hi List,
>
> I encapsulated antlr grammar files in a eclipse maven project. The
> compilation task of grammar files is done at maven compile time. I
> specified the output directory to be the following :-
Here is a sample configuratio
At Temboo we're using ANTLR & ANTXR parsing and tree transformation
for our visual language and our expression language.
Monty
On Wed, Dec 3, 2008 at 4:21 PM, Oliver Zeigermann
<[EMAIL PROTECTED]> wrote:
> Folks!
>
> I need your support as I want to figure out where parsers and/or
> compilers ar
I just found that ANTLR V3 would firstly turn input file stream into tokens,
then the parser started to work.Is there anyway to set the token buffer
length?
Check the following Lexer rule:
IDENT
: ('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'_'|'0'..'9')*
{
if (!parser.isFirst) $type=globalSearchI
Ashok Varikuti wrote:
> Hi List,
>
> I encapsulated antlr grammar files in a eclipse maven project. The
> compilation task of grammar files is done at maven compile time. I
> specified the output directory to be the following :-
>
>* target/generated-sources/antlr
>* dot.grammar
>
Hi List,
I encapsulated antlr grammar files in a eclipse maven project. The
compilation task of grammar files is done at maven compile time. I
specified the output directory to be the following :-
* target/generated-sources/antlr
* dot.grammar
o dot.tokens
Folks!
I need your support as I want to figure out where parsers and/or
compilers are practically used these days.
Any input highly appreciated.
Cheers and thanks in advance
Oliver
List: http://www.antlr.org:8080/mailman/listinfo/antlr-interest
Unsubscribe:
http://www.antlr.org:8080/mailman/
Hi Mike, I've currently got a nice example in my upcoming language
design patterns book where I build a poor man's object relational
database model using reflection. The basic idea is that you iterate
over the list of methods in a class or whatever and build up the
output (using templates
Hi there,
first of all: I am pretty new to ANTLR and to this mailing list. I did
search the archive for information but could not find anything
addressing my question. If it's in there, just send the link, please...
Now:
I am coming from a modeling (UML-like, graphical DSLs) background, where
I have just released org.antlr - antlr3-maven-plugin version 3.1.1.1,
which should sync up with Maven central no later than 4 hours from now
(depending on when in the sync cycle I deployed the artifacts).
This release incorporates a few donated re-jigs, but more importantly I
have re-implemented t
On Wed, 2008-12-03 at 09:49 -0800, Howard Lewis Ship wrote:
> I'm working on an improved property expression language for Tapestry
> 5.1. My first step was to recreate what T5.0 accepted in the past
> (using an ad-hoc parser based on regular expressions).
>
>
> My problem is a conflict betwee
I believe using lookahead would work - options { k=2; }
Carl
On 3 Dec 2008, 5:52 PM, "Howard Lewis Ship" <[EMAIL PROTECTED]> wrote:
I'm working on an improved property expression language for Tapestry
5.1. My first step was to recreate what T5.0 accepted in the past
(using an ad-hoc parser ba
I'm working on an improved property expression language for Tapestry
5.1. My first step was to recreate what T5.0 accepted in the past
(using an ad-hoc parser based on regular expressions).
lexer grammar PELexer;
@header
{
package propexp;
}
fragment LETTER
: ('a'..'z'|'A'..'Z'
On Wed, 2008-12-03 at 12:45 +0100, Oliver Zeigermann wrote:
> Folks!
>
> Any idea why parser and lexer rules are final in generated code? If it
> is for performance I doubt it does any significant speed up.
>
> Anyway, how do I manually implement a certain lexer or parser rule? I
> though of sub
On Wed, 2008-12-03 at 17:41 +0800, chain one wrote:
> procedure_id
> : { isFirst }? id=IDENT { addId($id.getText(),PROCEDURE_IDENT); }
> | nid=PROCEDURE_IDENT { $nid.setType(IDENT);} ->
> ^(PROCEDURE_ID[] PROCEDURE_IDENT)
> ;
> In the first pass, isFirst is true, an
On Wed, 2008-12-03 at 14:57 +0800, chain one wrote:
> Sorry for spaming
>
>
>
> I noticed that only to remove the '$' in front of getText and
> setType() would work.
> What a stupid question! : )
>
Actually, you should not do that in V3 lexers :-) You hsoudl use:
System.out.println($text);
On Wednesday 03 December 2008 15:27:29 you wrote:
>
> | ('/' ~'*') => '/'
> | ('*' ~'/') => '*'
> | MULTI_COMMENT
..with a syntactic predicate, nice.
thanks,
Michael
List: http://www.antlr.org:8080/mailman/lis
MULTI_COMMENT
: '/*'
{
$channel=HIDDEN;
}
( ~('/'|'*')
| ('/' ~'*') => '/'
| ('*' ~'/') => '*'
| MULTI_COMMENT
I found in ANTLR V3, before Parser rules began to be appiled, all the tokens
have been recognized(That is also to say that all the Lexer Rules have been
applied.).
Such as this rule:
IDENT
: ('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'_'|'0'..'9')*
{
$type=globalSearchId($text);
}
;
globa
Folks!
Any idea why parser and lexer rules are final in generated code? If it
is for performance I doubt it does any significant speed up.
Anyway, how do I manually implement a certain lexer or parser rule? I
though of subclassing and overriding the specific rule. Which does not
work because of
On Wed, Dec 3, 2008 at 4:26 PM, Gavin Lambert <[EMAIL PROTECTED]> wrote:
> At 23:05 3/12/2008, virg g wrote:
>
>> 1. As i have set of commands to parse
>> if there is any unknown command found it breaks the parsing and returns
>> with the error. But how to continue the parsing even though it fin
I noticed the first time parse is OK.But when turning isFirst to false, this
kind of error message keep coming out.
I don't know why the failure of a predicate would lead to an error.
2008/12/3 chain one <[EMAIL PROTECTED]>
> And there are a lot of error tag in the final printed tree like this:
At 23:05 3/12/2008, virg g wrote:
>1. As i have set of commands to parse
>if there is any unknown command found it breaks the parsing and
>returns with the error. But how to continue the parsing even
>though it finds unknown command after returning the error.
Normally ANTLR will try to contin
Hi,
I don't get the lexer rules correct to lex my nested comments.
As a workaround I use the following, see below. What are the right rules for
this ?
thanks
Michael
--
one lexer rule:
MULTI_COMMENT: '/*' { nestedComment(0); skip(); }
and in the @
Thanks for your very quick response. Now i have understood how lexer and
parser works.
1. As i have set of commands to parse
if there is any unknown command found it breaks the parsing and returns with
the error. But how to continue the parsing even though it finds unknown
command after returning
And there are a lot of error tag in the final printed tree like this:
(TYPE_DECL
Is it caused by the failure of the predicate?
2008/12/3 chain one <[EMAIL PROTECTED]>
> procedure_id
> : { isFirst }? id=IDENT { addId($id.getText(),PROCEDURE_IDENT); }
> | nid=PROCEDURE_IDENT
procedure_id
: { isFirst }? id=IDENT { addId($id.getText(),PROCEDURE_IDENT); }
| nid=PROCEDURE_IDENT { $nid.setType(IDENT);} ->
^(PROCEDURE_ID[] PROCEDURE_IDENT)
;
In the first pass, isFirst is true, and in the second pass, isFirst is set
to be false.
When running t
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