[antlr-interest] Error: TokenStreamException while reading Grammer

[Chal Chale apne Ghar]

Hi Johannes,
One more thinig i woudl like to say that in my very first mail, i had tested
this Grammer with Antlr version 2.7.5. Then alos it was throwing me Token
StreamException as below mentioned:

D:\Actuate\Samplelexer-parser\ConversionTool>java antlr.Tool
>         vb_org.txt
>         ANTLR Parser Generator   Version 2.7.5 (20050128)   1989-2005
>         jGuru.com
>         error: Token stream error reading grammar(s):
>         vb_org.txt:45:7: expecting ''', found 'p'
>         TokenStreamException: expecting ''', found 'p'
>
regards,
Gunjan

On Wed, Feb 4, 2009 at 12:20 PM, Johannes Luber <jaluber at gmx.de> wrote:

> Chal Chale apne Ghar schrieb:
> >
> >
> > Hi Gavin,
> > Thanks for quick Response.
> > It was really helpful to me.
> > After trying with the antlr v3 , I am getting different error in console.
>
> You are using the syntax for ANTLR 2.7.7 which is mostly incompatible
> with the one used by ANTLR 3. The general form of a grammar is:
>
> /** This is a grammar doc comment */
> grammar-type grammar name;
> options { name1 = value; name2 = value2; ... }
> import delegateName1=grammar1, ..., delegateNameN=grammarN; // can omit
> delegateName
> tokens { token-name1; token-name2 = value; ... }
> scope global-scope-name-1 { «attribute-definitions» }
> scope global-scope-name-2 { «attribute-definitions» }
> ...
> @header {...}
> @lexer::header {...}
> @members {...}
>
> «rules»
>
> To set the superclass of the generated class, use the superClass option.
>
> See
> <http://www.antlr.org/wiki/display/ANTLR3/ANTLR+v3+printable+documentation
> >
> for further information. Although I'm really wondering how ANTLRworks
> didn't complain about the fact, that you are actually using a ANTLR 2
> grammar. I suggest that you either convert the grammar to the new syntax
> or just use ANTLR 2.7.7.
>
> Johannes
> >
> > D:\Actuate\Samplelexer-parser\ConversionTool>java org.antlr.Tool
> > D:\Actuate\VB\v
> > b_org.g
> > ANTLR Parser Generator  Version 3.1.1
> > error(100): D:\Actuate\VB\vb_org.g:1:1: syntax error: antlr:
> > D:\Actuate\VB\vb_or
> > g.g:1:1: unexpected token: class
> > warning(149): D:\Actuate\VB\vb_org.g:0:0: rewrite syntax or operator
> > with no out
> > put option; setting output=AST
> > error(150):  grammar file D:\Actuate\VB\vb_org.g has no rules
> > error(100): D:\Actuate\VB\vb_org.g:0:0: syntax error: assign.types:
> > <AST>:0:0: u
> > nexpected end of subtree
> > error(100): D:\Actuate\VB\vb_org.g:0:0: syntax error: define: <AST>:0:0:
> > unexpec
> > ted end of subtree
> > i am attching my .g file fro reference.
> > Any help would be appriciated.
> > regards,
> > Gunjan
> > On Tue, Feb 3, 2009 at 1:23 AM, Gavin Lambert <antlr at mirality.co.nz
> > <mailto:antlr at mirality.co.nz>> wrote:
> >
> >     At 21:45 2/02/2009, Chal Chale apne Ghar wrote:
> >
> >         D:\Actuate\Samplelexer-parser\ConversionTool>java antlr.Tool
> >         vb_org.txt
> >         ANTLR Parser Generator   Version 2.7.5 (20050128)   1989-2005
> >         jGuru.com
> >         error: Token stream error reading grammar(s):
> >         vb_org.txt:45:7: expecting ''', found 'p'
> >         TokenStreamException: expecting ''', found 'p'
> >
> >         as seen, i am getting TokenStream Exception. But when i am using
> >         AntlrWorks to check the Grammer syntax, it is showing correct to
> me.
> >
> >
> >     You're running ANTLR v2 on the command line, but ANTLRWorks is for
> >     ANTLR v3.  To run ANTLR v3, you need to use "org.antlr.Tool", not
> >     "antlr.Tool".
> >
> >     Also, by convention grammar files have a .g extension.  This doesn't
> >     really matter (ANTLR will still happily compile the file regardless
> >     of extension), but it's a good idea to follow the convention, since
> >     that's what tools are expecting.
> >
> >
> >
> >
> > ------------------------------------------------------------------------
> >
> >
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>
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