From: Robert <bob.news@...>
Date: 2003-04-28T15:39:58+09:00
Subject: Re: Regexp and $


Did you look at \z, \Z and option "m" (multiline mode)?

    robert


"Brian Candler" <B.Candler@pobox.com> schrieb im Newsbeitrag
news:20030427121720.GA38491@uk.tiscali.com...
> On Sun, Apr 27, 2003 at 09:05:29PM +0900, ts wrote:
> > B> I think this difference in behaviour is unfortunate, as I consider
that "^"
> > B> and "$" are part of the lowest-common-denominator of regexp behaviour
which
> > B> ought to be reasonably portable.
> >
> >  Why use the broken P implementation ?
>
> I guess I am used to:
>
>     s/[\r\n\s]+$//;   # Strip trailing spaces and newlines
>
> Somehow it seems right to me that $ matches "end of string", perhaps
because
> a long time ago I did a course which had a more formal definition of
regular
> expressions, and $ was used to mean end of input stream.
>
> FWIW, awk agrees with Perl:
>
> $ awk -- 'BEGIN { a="abc\n"; gsub("$","z",a); print a }' </dev/null
> abc
> z
>
> So it seems to me this is an anomoly introduced by Ruby.
>
> Regards,
>
> Brian.
>