Hi,
I want to use the PLSQL grammar from antlr.org with some modifications to
detect table names in statements. I want to check, whenever I hit the
"table_spec" rule, if this table name is in a whitelist and perform further
actions.
I have a problem now: How can I add global variables to the p
I probably should've posted this a while ago, but I didn't get around
to it.
There is a bug in the CommonTokenStream.getTokens() function in the
Python target version 3.1.2 (it looks like there is a 3.2 version in
the bug database, but 3.1.2 is the released python runtime and it
shouldn't
It's certainly possible that I have a bug in my lexer, since it has been
*ages* since I did any language programming. I posted on here a repro
scenario based on the sample XML lexer/parser provided on the ANTLR website.
The issue is that with that parser, the following input causes an infinite
lo
Actually, I did not dispute that the hang was a bug, but stated that it was
really somewhat irrelevant because the bug is in your predicate specifications.
Lexers should not really be throwing exceptions but should be coded to deal
with any input in a controlled manner. Your code was looked at,
Bart,
Thanks for your suggestion. I think its a really involved task to define URL
per the specification. For the timebeing I will do with my lightweight spec
:)
Ron
Thanks for the insight. Indeed, it would be interesting to dig into java's
URL class spec to get some info on how they manage it.
c
The message title was: "Antlr Bug: Failed semantic predicate in lexer
triggers endless loop"
Basically, the bug is in the nextToken() method in Antlr's Lexer class.
If a NoViableAlt exception is thrown, the method calls the recover
method, which consumes one character before trying again. Bu
I've been all over the archives, but perhaps my search terms were
inadequate. I'll look again with that date in mind. Thanks.
On Tue, Mar 30, 2010 at 8:11 AM, Ron Hunter-Duvar <
ron.hunter-du...@oracle.com> wrote:
> Hi Cliff,
>
> I reported this same problem on February 10 on this list. It's an
Hi.
I'm trying to implement partial SQL parsing in my application with the
help of ANTLR.
It is hard to write proper grammar for some SQL expressions, so I want
to leave them as a plain text.
Consider the following SQL statement:
SELECT name1, func(first expression), (second expression) as 'foo'
I ran into the same problem. I may be wrong, but it seemed like
functionality that was intended to be implemented in Antlr but was never
finished, at least in the Java run-time. I just hacked together a method
that uses introspection to pick out all the token type declarations
("public static f
Hello (Again)
I am playing with the CommonTree object. It has a method called getType()
that gives an int for token. How do I get the actual token name from that
int?
I saw in the archives that this question is asked but could not really find
the method String getTokenName(int) as answered in tha
Hi Cliff,
I reported this same problem on February 10 on this list. It's an Antlr
bug, and my emails on it had the work around (which requires you to
implement a custom superclass if you haven't already). If you search the
list archives you should be able to find it.
Ron
Cliff Hudson wrote:
On Tue, Mar 30, 2010 at 2:18 PM, Ketan Maheshwari <
ketancmaheshw...@gmail.com> wrote:
> ...
>
> Actually this is my lame attempt to ask if someone can help me express URL
> in ANTLR grammar. :-)
>
>
I'd start by reading the specs of a URL:
http://www.w3.org/Addressing/URL/url-spec.txt , and then
Hello Friends
Wondering if there is a repository for expressing standard things like URL
to express in antlr grammar.
Actually this is my lame attempt to ask if someone can help me express URL
in ANTLR grammar. :-)
Many Thanks
Ketan
List: http://www.antlr.org/mailman/listinfo/antlr-interest
Uns
Hello
Please sir
In my project, I have to develop a tool which makes the transformation of a
specification in a language Z towards a specification in another language
CSP-Z, I already have defined textuellement of the rules for this
transformation. I try to find a tool which takes in input gr
I tried to build the PolyDiff example from Examples-v3, using
ANTLR-3.1-2009-06-28 and libantlr3c-3.2 in Visual Studio 2008. The output
from the build:
1>-- Rebuild All started: Project: polydiff, Configuration: Debug Win32
--
1>Deleting intermediate and output files for project 'poly
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