# New Ticket Created by  Anno Siegel 
# Please include the string:  [perl #32400]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org:80/rt3/Ticket/Display.html?id=32400 >



This is a bug report for perl from [EMAIL PROTECTED],
generated with the help of perlbug 1.34 running under perl v5.8.1.

The constant pragma warns

    Constant name '_123_456' has unknown problems at...

when you try to define a constant that begins with "_" and consists
only of digits and "_".  In other contexts, these are valid identifiers,
and the wording in perldata

    ... identifier, that is, a string beginning with a letter or underscore,
    and containing letters, underscores, and digits.

seems to indicate the same.  I suggest dropping the corresponding
clause from warnings.pm.

I had a little correspondence with Tom Phoenix about this, and he
agrees.  In particular:

    If you submit a patch to the Perl developers (via perlbug), I would
    greatly appreciate it if you remove my e-mail address from that
    comment in your patch.

...so it's no problem when his address disappears along with the comment.

Regards,

Anno

--------------------------------------------------------------------------
--- orig/lib/constant.pm        Wed Nov 10 18:32:43 2004
+++ perl-5.8.5/lib/constant.pm  Wed Nov 10 19:16:05 2004
@@ -71,11 +71,6 @@
                } elsif ($forced_into_main{$name}) {
                    warnings::warn("Constant name '$name' is " .
                        "forced into package main::");
-               } else {
-                   # Catch-all - what did I miss? If you get this error,
-                   # please let me know what your constant's name was.
-                   # Write to <[EMAIL PROTECTED]>. Thanks!
-                   warnings::warn("Constant name '$name' has unknown 
problems");
                }
            }
 
--- orig/lib/constant.t Wed Nov 10 18:32:43 2004
+++ perl-5.8.5/lib/constant.t   Wed Nov 10 19:20:34 2004
@@ -14,7 +14,7 @@
 
 ######################### We start with some black magic to print on failure.
 
-BEGIN { $| = 1; print "1..82\n"; }
+BEGIN { $| = 1; print "1..83\n"; }
 END {print "not ok 1\n" unless $loaded;}
 use constant 1.01;
 $loaded = 1;
@@ -249,3 +249,12 @@
 test 80, @{+PHFAM} == SPIT->(THREE+1);
 test 81, THREE**3 eq SPIT->(@{+FAMILY}**3);
 test 82, AGES->{FAMILY->[THREE-1]} == PHFAM->[THREE];
+
+# Allow name of digits/underscores only if it begins with underscore
+{
+    use warnings FATAL => 'constant';
+    eval q{
+        use constant _1_2_3 => 'allowed';
+    };
+}
+test 83, length( $@) == 0;
---
Flags:
    category=library
    severity=low
---
Site configuration information for perl v5.8.1:

Configured by anno4000 at Wed Oct  1 12:15:29 MEST 2003.

Summary of my perl5 (revision 5.0 version 8 subversion 1) configuration:
  Platform:
    osname=linux, osvers=2.0.36, archname=i586-linux
    uname='linux lublin.zrz.tu-berlin.de 2.0.36 #2 mon jun 26 12:24:02 mest 
2000 i586 unknown '
    config_args='-des'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef 
usemultiplicity=undef
    useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=undef use64bitall=undef uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-I/usr/local/include -D_LARGEFILE_SOURCE 
-D_FILE_OFFSET_BITS=64',
    optimize='-O2',
    cppflags='-I/usr/local/include'
    ccversion='', gccversion='2.7.2.3', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', 
lseeksize=4
    alignbytes=4, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lnsl -lndbm -lgdbm -ldb -ldl -lm -lcrypt -lutil -lc -lposix
    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc -lposix
    libc=/lib/libc-2.0.7.so, so=so, useshrplib=false, libperl=libperl.a
    gnulibc_version='2.0'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
    cccdlflags='-fpic', lddlflags='-shared -L/usr/local/lib'

Locally applied patches:
    

---
@INC for perl v5.8.1:
    /opt/home/anno4000/lib/perl
    /usr/local/lib/perl5/5.8.1/i586-linux
    /usr/local/lib/perl5/5.8.1
    /usr/local/lib/perl5/site_perl/5.8.1/i586-linux
    /usr/local/lib/perl5/site_perl/5.8.1
    /usr/local/lib/perl5/site_perl
    .

---
Environment for perl v5.8.1:
    HOME=/opt/home/anno4000
    LANG (unset)
    LANGUAGE (unset)
    LD_LIBRARY_PATH=/usr/X11R6/lib:/usr/local/LessTif/Motif1.2/lib
    LOGDIR (unset)
    
PATH=/opt/home/anno4000/bin:/sbin:/usr/local/bin:/bin:/usr/bin:/usr/sbin:/usr/X11R6/bin:/usr/openwin/bin:/usr/games
    PERL5LIB=/opt/home/anno4000/lib/perl
    PERL_BADLANG (unset)
    PERL_PRIVLIB=/usr/local/lib/perl5/5.8.1
    PERL_SITELIB=/usr/local/lib/perl5/site_perl/5.8.1
    SHELL=/bin/tcsh

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