Re: [Rubycocoa-talk] NSFormatter - Hillegass example

[Allison N. <dem...@ma...>]

Wolfgang,

I'm too lazy to type in the whole example from the Hillegass text.   
But just looking at the implementation of the "cast_as" method, I  
would suggest that you try :

     partial = partPtr.cast_as('^@')

Let us know if that helps....

Alli

Le 7 mars 10 à 09:38, Wolfgang Kittenberger a écrit :

> Hi folks,
>
>   has anybody implemented the Hillegass example regarding  
> NSFormatter (chapter 26 in the 3rd edition of "Cocoa Programming for  
> MAC OS X") in rubycocoa?
>
>   I failed to transcript the  
> isPartialStringValid:proposedSelectedRange:originalString:originalSelectedRange:errorDescription 
> : method on the pages 336+337:
>
> def  
> isPartialStringValid_proposedSelectedRange_originalString_originalSelectedRange_errorDescription 
> (partPtr, selPtr, origString, origSel, error_ptr)
>     NSLog("partPtr.class = #{partPtr.class}")
>     NSLog("partPtr.inspect = #{partPtr.inspect}")
>     partial = partPtr.cast_as('@')
>     NSLog("partial.class = #{partial.class}")
> ...
>
>  I started with some test-printout, but when entering the cast  
> statement, it blows up! here is the correspondig console output:
>
> 2010-03-07 09:27:38.170 TypingTutor[6519:a0f] partPtr.class =  
> OSX::ObjcPtr
> 2010-03-07 09:27:38.171 TypingTutor[6519:a0f] partPtr.inspect =  
> #<OSX::ObjcPtr:0x29f036 cptr=0xbfffd4dc allocated_size=0 encoding=@>
> Program received signal:  “EXC_BAD_ACCESS”.
> sharedlibrary apply-load-rules all
>
> any ideas?
>
> best regards
>
> Wolfgang Kittenberger
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