Re: Regarding reg. exp.

[Vyacheslav Karamov]

Irfan.Sayed@xxxxxxxxxxxxx ÐÐÑÐÑ:
> Because I want comma (,) exactly once
>
> -----Original Message-----
> From: Vyacheslav Karamov [mailto:ubuntulist@xxxxxxxxx] 
> Sent: Tuesday, October 14, 2008 4:41 PM
> To: Sayed, Irfan (Cognizant)
> Cc: rob.dixon@xxxxxxx; beginners@xxxxxxxx
> Subject: Re: Regarding reg. exp.
>
> Irfan.Sayed@xxxxxxxxxxxxx ÐÐÑÐÑ:
>   
> > if ($trig_np =~ m/\d,{1}\d|\d\s{1}\d/)
> >
> > this what I did.
> >
> >   
> >
> >     
> Hi!
>
> Why have you used {1} quantifier?
>
>   
No, its not correct. if you mention for example \d this will match 
*single* digit.
Your regex will match 1,2 or 1 2, but *not*  12,2 or  234323  53

if ($trig_np =~ m/ \d+ [,\s] \d* /x)

is much more correct