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Re: [LOCALE] regulære udtryk

On Fri, Sep 01, 2000 at 10:15:43AM +0200, Byrial Jensen wrote:
> On Fri, Sep 01, 2000 at 00:29:21 +0200, Keld Jørn Simonsen wrote:
> > Hejsa
> > 
> > Et spørgsmål, som diskuteres ivrigt i POSIX-kredse:
> > 
> > Hvis vi taler om det danske locale, bør
> > det regulære udtryk [a-c] - indeholde også
> > store bogstaver som B ?  a < b,B < c
> > eller skal det kun indeholde  små bogstaver?
> 
> Kun små bogstaver, tak.
> 
> For det første: Det andet ville kunne skabe ubehagelige overraskelser
> da man (læs: jeg) ikke venter at sådanne udtryk er locale-afhængige.

Er det fordi det ikke skal være locale-afhængigt?
Iflg POSIX standarden er det localeafhængigt.


> For det andet: Det ville være temmeligt besværligt hvis det så blev
> nødvendigt at skrive [abcdefghijklmnopqrstuvwxyz] for at matche et
> lille bogstav mellem a og z.

Dertil har man [:lower:]

> For det tredje: Hvis man ønsker at medtage de store bogstaver, kan bare
> kalde regcomp(3) med REG_ICASE-flaget.

Det kan man vist ikke fra skallen.

Hilsen
keld

 
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