[antlr-interest] Csharp target, Recover(input, e)

[Mari Matinlassi]

Ok. In a separate email.

Mari

-----Original Message-----
From: Sam Harwell [mailto:sharwell at pixelminegames.com] 
Sent: Wednesday, September 28, 2011 6:17 PM
To: 'Mari Matinlassi'; antlr-interest at antlr.org
Subject: RE: [antlr-interest] Csharp target, Recover(input, e)

I've never seen this occur before.

Can you send me a project with a grammar and input that exhibits this?

Thanks,
Sam

-----Original Message-----
From: antlr-interest-bounces at antlr.org
[mailto:antlr-interest-bounces at antlr.org] On Behalf Of Mari Matinlassi
Sent: Wednesday, September 28, 2011 10:37 AM
To: antlr-interest at antlr.org
Subject: [antlr-interest] Csharp target, Recover(input, e)

Hi,

 

I am doing a grammar for C sharp target. I have following problem, I need
help with


 

When parser input contains unexpected character, let´s say ‘*’  or ‘<’  that
is not defined in any lexer/parser rule or token, happens the following:

1.       RecognitionException (subtype MismatchedTokenException)will be
thrown from the rule in question. This OK.

2.       Error reported is ok. Something like “mismatched input
[@20,56:55='',<18>,8:2] expecting ENDOFCLASS”

3.       Recover method will be called. This takes forever(or at least 10
seconds), then another exception will be thrown. Either
“OutOfMemoryException” or “ArgumentOutOfRangeException”

 

Shouldn´t Recover(input, e) method recover from this kinds of errors? What
am I doing wrong?

 

Thanks for help,

 

Mari


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