[p4] Perforce keyword expansion

twardst twardst at qwest.net
Tue Dec 4 06:58:00 PST 2001


Or still one more solution, that I have an enhancement request in for is to
add a new keyword that would turn off keyword expansion for the remainder
of the file.

tim

At 03:48 PM 12/4/2001 +0100, Peter Jaeckel wrote:
>Hi,
>
>Perhaps another solution in this special case would be to switch
>the type from k+text to ko+text this will only substitute $Id$ and
>$Header$.
>
>         Cheers,
>         Peter Jaeckel
>
>-----Original Message-----
>From: Arnt Gulbrandsen [mailto:arnt at gulbrandsen.priv.no]
>Sent: Dienstag, 4. Dezember 2001 14:03
>To: Schlueter, Michael
>Cc: 'perforce-user at perforce.com'
>Subject: Re: [p4] Perforce keyword expansion
>
>
>"Schlueter, Michael" <Schlueter at secunet.de>
> > Hi,
> > I just found out that the perforce keyword expansion even replaces the
> > keywords normal c++ constant strings. It took me quite while to find out
> > that somewhere in a parser syntax definition a $date$ was replaced by the
> > current date. Is this a bug or feature?
>
>It's a feature, usually used like this:
>
>const char ident[] = "$Id$";
>
>Many unix machines have a program called 'ident' that will print the
>version strings that went into a linked executable.
>
> > Is there a way to avoid this?
>
>Not short of turning off keyword expansion. Perforce doesn't know c++
>syntax (or that of any other language, AFAIK).
>
>I have been troubled by it a few times. ISTR I once had a function that
>searched for "$Id$" and of course that function's search string got
>changed. But it's never been very difficult to work around the problem.
>
>If you're using plain C++, maybe you can use the preprocessor's string
>concatenation: "$Da" "te$" is the same as "$Date$".
>
>--Arnt
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