Re: [PATCH] git-svn: handle leading/trailing whitespace from svnsync revprops

["Björn Steinbrink" <B.Steinbrink@gmx.de>]

On 2008.01.12 01:12:42 -0800, Eric Wong wrote:
> Junio C Hamano <gitster@pobox.com> wrote:
> > Is it only me who finds that
> > 
> > 	($var) = ($var =~ m{^(any regexp)$}) or die "message"
> > 
> > is extremely a roundabout and hard-to-read way to say:
> > 
> > 	if ($var !~ m{^(the same regexp)$} {
> >         	die "message";
> > 	}
> > 
> > which is much easier to read?
> 
> The statements are not equivalent, however.  I'd have to add
> 
> 	$var = $1;
> 
> too, because I needed to extract what was inside the ( ) since the '$'
> doesn't catch the trailing newline, either.  I also couldn't find any of
> the /sm, /m, /s switches useful for making '$' not accept the trailing
> newline, either.

The \z assertion will do, eg m/^foo\z/ will only match exactly "foo",
not "foo\n". As it is a zero-width assertion, you can also write
m/^foo\z$/ if you prefer that.

Björn