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

On 2008.01.12 01:12:42 -0800, Eric Wong wrote:

Junio C Hamano [off-list ref] wrote:

quoted

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