Re: [bug-gawk] Numerical repeat is broken.

[Aharon Robbins]

FWIW, matching interval expressions is now enabled by default,
starting with gawk 4.0.0.

Arnold

> From: "Pierre Chartier" <address@hidden>
> To: "'Andrew J. Schorr'" <address@hidden>
> Date: Fri, 17 Feb 2012 13:40:05 -0500
> Cc: address@hidden
> Subject: Re: [bug-gawk] Numerical repeat is broken.
>
> Thank you very much. 
>
> Pierre Chartier
>
> -----Original Message-----
> From: Andrew J. Schorr [mailto:address@hidden 
> Sent: Friday, February 17, 2012 12:12 PM
> To: Pierre Chartier
> Cc: address@hidden
> Subject: Re: [bug-gawk] Numerical repeat is broken.
>
> On Thu, Feb 16, 2012 at 03:23:01PM -0500, Pierre Chartier wrote:
>
> BEGIN {
>   printf "Matching v01.02.002\n"
>   if("v01.02.002" ~ /v[0-9]{2}\.[0-9]{2}\.[0-9]{3}/) {printf "1 matches\n"}
>   if("v01.02.002" ~ /v[0-9]*\.[0-9]*\.[0-9]*/) {printf "2 matches\n"}
>   if("v01.02.002" ~ /v[0-9][0-9]\.[0-9]*\.[0-9]*/) {printf "3 matches\n"}
>   if("v01.02.002" ~ /v[0-9]{2}\.[0-9]*\.[0-9]*/) {printf "4 matches\n"}
>   if("v01.02.002" ~ /v[0-9]{2}\.[0-9]{2}\.[0-9]*/) {printf "5 matches\n"} }
>
> For this to work with gawk, you will need the --re-interval argument:
>
> --re-interval
>      Allow interval expressions in regexps, even if `--traditional' has
>      been provided.  (`--posix' automatically enables interval
>      expressions, so `--re-interval' is redundant when `--posix' is is
>      used.)
>
> Regards,
> Andy
>