GNU bug report logs - #5064
23.1.50; perl mode coloring gone if subroutine name is one letter long

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From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: jidanni <at> jidanni.org, 558428 <at> bugs.debian.org
Subject: bug#5064: marked as done (23.1.50; perl mode coloring gone if
 subroutine name is one letter long)
Date: Sat, 28 Nov 2009 20:40:05 +0000

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Your message dated Sun, 29 Nov 2009 04:23:07 +0800
with message-id <873a3ytn4k.fsf_-_ <at> jidanni.org>
and subject line Bug#558428: mention that perl can't deal with certain one letter subroutines
has caused the Emacs bug report #5064,
regarding 23.1.50; perl mode coloring gone if subroutine name is one letter long
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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5064: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=5064
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From: jidanni <at> jidanni.org
To: emacs-pretest-bug <at> gnu.org
Subject: 23.1.50; perl mode coloring gone if subroutine name is one letter long
Date: Sat, 28 Nov 2009 09:41:40 +0800

Gentlemen, consider the following perl subroutines.
Notice how the latter has all its coloring gone, just because it starts
with one letter. (perl-mode)^X^E

sub max {
    my $max = shift(@_);
    foreach $foo (@_) {
        $max = $foo if $max < $foo;
    }
    return $max;
}
sub m {
    my $max = shift(@_);
    foreach $foo (@_) {
        $max = $foo if $max < $foo;
    }
    return $max;
}

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From: jidanni <at> jidanni.org
To: submit <at> bugs.debian.org
Subject: Bug#558428: mention that perl can't deal with certain one letter subroutines
Date: Sun, 29 Nov 2009 04:23:07 +0800

X-debbugs-cc: 5064-close <at> debbugs.gnu.org, monnier <at> iro.umontreal.ca
Package: perl-doc
Version: 5.10.1-8
Severity: wishlist
File: /usr/share/man/man1/perlsub.1.gz
Tags: upstream

Dear Perl guys: On the perlsub man page, please mention near:

       Subroutines whose names are in all upper case are reserved to the
       Perl core, as are modules whose names are in all lower case.

that sub m {...}
won't work too.

SM> Actually, the problem is not really that it's only one letter, but that
SM> it's the "keyword" m, used for matching (as in "m/regexp/").  Of course
SM> the same can happen with other keywords like "s", "tr", "y", "q", "qx",
SM> and various others.

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