Re: to_ascii()

Applied.  

> 
>  to_ascii( text )
> 
> 	- encode 'text' from database encoding to ASCII
> 	
> 	to_ascii('\256\341k')
> 
> 
>  to_ascii( text, int4 )
> 
> 	- encode 'text' from 'int4' encoding to ASCII
> 
>  	  to_ascii('\256\341k', 8)
> 
> 
>  to_ascii( text, name )
> 
> 	- encode 'text' from 'name' encoding to ASCII
> 
> 	  to_ascii('\256\341k', 'LATIN2')  
> 
> 
>   Now is supported LATIN1, LATIN2, WIN1250. For other character sets I
> haven't good resources. Add new encoding is easy... 
> 
>  If encoding is not supported returns ERROR.
> 
>  Note --- not exists total corect conversion to ASCII, this function try 
> 	convert chars those is _probably_ interpret-able in ASCII for 
> 	others use ' '. But for example for all Czech characters it is
> 	sufficient ... hmm Chinese / JAP and other complicated langs have 
> 	bad luck here :-(
> 
> 						Karel
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