[antlr-interest] Re: problem with line numbers in 2.7.2

[mzukowski at yci.com]

Any patches are appreciated!

Monty

-----Original Message-----
From: atripp54321 [mailto:atripp at comcast.net] 
Sent: Wednesday, June 25, 2003 2:42 PM
To: antlr-interest at yahoogroups.com
Subject: [antlr-interest] Re: problem with line numbers in 2.7.2


Yes, I'm using a modified version of your "cgram" lexer.
Note also that the column number isn't right either,
but it doesn't look like lineObject handles column numbers.

Thanks,
Andy

--- In antlr-interest at yahoogroups.com, mzukowski at y... wrote:
> Are you using the gcc lexer?  Sounds like you need to add a
getLine() method
> to the lexer that uses the lineObject.  I hadn't caught that before,
I'll
> add it to the source when I get a chance.
> 
> Thanks!
> 
> Monty
> 
> -----Original Message-----
> From: atripp54321 [mailto:atripp at c...]
> Sent: Tuesday, June 24, 2003 8:40 PM
> To: antlr-interest at yahoogroups.com
> Subject: [antlr-interest] problem with line numbers in 2.7.2
> 
> 
> Hi,
> 
> I just upgraded to antlr 2.7.2 because I want the
> enhancement that a RecognitionException will show a line number. 
> Every time I get a RegocnitionException
> in my lexer, it shows line number 1.
> 
> A quick look at my generated lexer code shows getLine()
> is called to get the line number whenever a NoViableAltException 
> is created:
> 	throw new NoViableAltForCharException((char)LA(1), 
> 	getFilename(), getLine(), getColumn());
> 
> And it looks like there is now a LineObject object
> in my lexer, and THAT is where the true line number is being kept 
> (being incremented by the newline() method, for example).  
> However, there is no getLine() function in my lexer, it inherits the one
> from CharScanner, which is getting the line number from 
> somewhere else.
> 
> And, sure enough, if I replace each getLine() call with
> "lineObject.line", I get the proper line number.
> 
> Is this a bug? I apologize in advance if it's already been discussed.
> 
> Thanks,
> Andy
> 
> 
>  
> 
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