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Re: RCS 5.9.4: problem "badly terminated keyword value" for "ci -k"

From: Thien-Thi Nguyen
Subject: Re: RCS 5.9.4: problem "badly terminated keyword value" for "ci -k"
Date: Mon, 05 Oct 2020 14:33:12 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)

() "Ulrich Windl" <Ulrich.Windl@rz.uni-regensburg.de>
() Sat, 09 Feb 2019 18:38:04 +0100

   I have an unsolvable problem with RCS 5.9.4, that probably
   could need:

   * either an option to ignore this error
   * an improved parser for keywords.

   In any case a better diagnostic message (which keyword, BTW?)
   would be helpful.  So here is what I have: I had copied a
   file from another computer that is checked out by RCS. The
   local computer didn't have the latest version, so I wanted to
   check it in:

   ci -d -k -u -M ./pwg.pl 
   ./RCS/pwg.pl,v  <--  ./pwg.pl
   ci: ./pwg.pl: badly terminated keyword value

   So you have no idea what "keyword" actually causes the
   problem. However ident can provide some clues:

        $Id: pwg.pl,v 5.2 2019/01/31 11:47:13 windl Exp $
        $selector: unknown domain specifier $
        $selector: unknown random selector $
        $op: ", $

   Here also ident could use an option that displays line
   numbers for the "keywords" also ;-)

Hmmm.  Patches welcome...

   The source lines causing the problems actually are:

   warn "$selector: unknown domain specifier $1\n";
   warn "$selector: unknown random selector $selector\n";
   print "Entropy before $op: ", $e->as_string(), "\n"

   Is there any chance to check-in the source unmodified? (I
   could replace all "$foo" with "${foo}")

Unfortunately, i can't think of any way, aside from modifying
the source.  Adding the curly braces would do the trick.

Thien-Thi Nguyen

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