[Grammatica-users] Internal error when running the profiler

[Luc Morin]

Hi,

 

Grammatica version 1.4

 

java version "1.5.0_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_01-b08)
Java HotSpot(TM) Client VM (build 1.5.0_01-b08, mixed mode, sharing)

 

Windows XP SP 2

 

 

I'm seeing the following happening when profiling the following grammar (probably an error in my grammar anyway).

 

Error message:

 

C:\GRAMMA~1.4\lib>java -jar grammatica-1.4.jar my.grammar --profile file.test
Tokenizing file.test
  Time elapsed:  15 millisec
  Tokens found:  18
  Average speed: 1 tokens/millisec

 

Parsing file.test
  Time elapsed:  0 millisec
  Nodes found:   30
INTERNAL ERROR: An internal error in Grammatica has been found.
    Please report this error to the maintainers (see the web
    site for instructions). Be sure to include the Grammatica
    version number, as well as the information below:

 

java.lang.ArithmeticException: / by zero
        at net.percederberg.grammatica.Grammatica.profile(Grammatica.java:547)
        at net.percederberg.grammatica.Grammatica.main(Grammatica.java:175)

 

----------------8<----------------

 

my.grammar:

 

%header%

 

GRAMMARTYPE = "LL"

 

DESCRIPTION = "A grammar for a new form generator."

 

AUTHOR      = "Luc Morin"
VERSION     = "1.0"
DATE        = "10 march 2005"

 

LICENSE     = "Permission is granted to copy this document verbatim in any
               medium, provided that this copyright notice is left intact."

 

COPYRIGHT   = "Copyright (c) 2005 Luc Morin. All rights reserved."

 

%tokens%

 

Q_MARK        = "?"
COLON        = ":"
EQUAL        = "="
GREATER_THAN   = ">" //%ignore%
SMALLER_THAN   = "<" //%ignore%
QUOTED_STRING                = <<"[^"]*">>
NUMBER                       = <<[0-9]+>>
WHITESPACE                   = <<[ \t\n\r]+>> %ignore%

 

%productions%

 

CondStatement = EqualExpression Q_MARK Property COLON Property ;

 

//Property = SMALLER_THAN Propnum [Index] [Property] GREATER_THAN ;

 

Property = "<" Propnum [Index] [Property] ">" ;

 

EqualExpression = Property EQUAL QUOTED_STRING ;

 

Propnum = NUMBER ;

 

Index = NUMBER ;

 

----------------8<----------------

 

file.test:

 

<5 1> = "allo" ? <6> : <7<8 1>>

 

----------------8<----------------

 

Thank you

 

Luc Morin

 

Electrical Designer

Wulftec / M.J. Maillis Group

address@hidden

Ph.: (819) 838-4232 ext. 232

Fx.: (819) 838-5539

 

www.wulftec.com

www.maillis.gr

 

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