[ID 20000731.006] attributes don't like .=

This is a bug report for perl from pdcawley@bofh.org.uk,
generated with the help of perlbug 1.28 running under perl v5.6.0.


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[Please enter your report here]

So, I was playing around, trying to make a japh when I did something like: 

 perl -e 'my $var : locked .= "test"'

And perl fell over in a heap with:

Invalid separator character '.' in attribute list at -e line 1, near "$var : locked "
syntax error at -e line 1, near "$var : locked "
Execution of -e aborted due to compilation errors.

Is this a known bug? A known feature?

[Please do not change anything below this line]
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---
Flags:
    category=core
    severity=low
---
Site configuration information for perl v5.6.0:

Configured by pixel at Fri Mar 31 16:32:49 CEST 2000.

Summary of my perl5 (revision 5.0 version 6 subversion 0) configuration:
  Platform:
    osname=linux, osvers=2.2.15-0.16mdksmp, archname=i386-linux
    uname='linux kenobi.mandrakesoft.com 2.2.15-0.16mdksmp #1 smp mon mar 13 16:40:10 cet 2000 i686 unknown '
    config_args='-des -Dprefix=/usr -Darchname=i386-linux -Dd_dosuid -Dd_semctl_semun -Di_db -Di_ndbm -Di_gdbm -Ud_csh -Dman3dir=/usr/lib/perl5/man/man3 -Doptimize=-O3 -fomit-frame-pointer -fno-exceptions -fno-rtti -pipe -s -mpentium -mcpu=pentium -march=pentium -ffast-math -fexpensive-optimizations'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
    useperlio=undef d_sfio=undef uselargefiles=define 
    use64bitint=undef use64bitall=undef uselongdouble=undef usesocks=undef
  Compiler:
    cc='cc', optimize='-O3 -fomit-frame-pointer -fno-exceptions -fno-rtti -pipe -s -mpentium -mcpu=pentium -march=pentium -ffast-math -fexpensive-optimizations', gccversion=2.95.3 19991030 (prerelease)
    cppflags='-fno-strict-aliasing'
    ccflags ='-fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'
    stdchar='char', d_stdstdio=define, usevfork=false
    intsize=4, longsize=4, ptrsize=4, doublesize=8
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=4, usemymalloc=n, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lnsl -ldl -lm -lc -lposix -lcrypt
    libc=/lib/libc-2.1.3.so, so=so, useshrplib=false, libperl=libperl.a
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
    cccdlflags='-fpic', lddlflags='-shared -L/usr/local/lib'

Locally applied patches:
    

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@INC for perl v5.6.0:
    /usr/lib/perl5/5.6.0/i386-linux
    /usr/lib/perl5/5.6.0
    /usr/lib/perl5/site_perl/5.6.0/i386-linux
    /usr/lib/perl5/site_perl/5.6.0
    /usr/lib/perl5/site_perl/5.005/i386-linux
    /usr/lib/perl5/site_perl/5.005
    /usr/lib/perl5/site_perl
    .

---
Environment for perl v5.6.0:
    HOME=/home/pdcawley
    LANG=en
    LANGUAGE=en_GB:en
    LC_COLLATE=en_GB
    LC_CTYPE=en_GB
    LC_MESSAGES=en_GB
    LC_MONETARY=en_GB
    LC_NUMERIC=en_GB
    LC_TIME=en_GB
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/home/postgres/bin:/home/postgres/bin:/home/pdcawley/bin:/opt/IBMJava2-13/bin:/home/postgres/bin:/home/postgres/bin:/home/pdcawley/bin:/opt/IBMJava2-13/bin:/home/postgres/bin:/bin:/usr/bin:/usr/bin/X11:/usr/local/bin:/usr/bin:/usr/X11R6/bin:/usr/games:/usr/X11R6/bin:/usr/games:/usr/X11R6/bin:/usr/games:/usr/X11R6/bin:/usr/games:/usr/X11R6/bin:/usr/games
    PERL_BADLANG (unset)
    SHELL=/bin/bash

• [ID 20000731.006] attributes don't like .= by pdcawley
• [perl #3605] attributes don't like .= by reneeb via RT
• [perl #3605] attributes don't like .= by Bram via RT
• [perl #3605] attributes don't like .= by Father Chrysostomos via RT
• Re: [perl #3605] attributes don't like .= by Ricardo Signes