5.18 regression with [:^ascii] and \x80-\xFF

[p5pRT]

Migrated from rt.perl.org#120799 (status was 'resolved')

Searchable as RT120799$

[p5pRT]

From @khwilliamson

This is a bug report for perl from khw@​cpan.org,
generated with the help of perlbug 1.39 running under perl 5.19.7.

---

"\x80" =~ /[_[​:^ascii​:]]/d;

no longer matches as of 5.18; whereas it previously did. This bug
happens for all target string characters in the range \x80 through \xFF.
The bug doesn't happen if the bracketed character class contains only a
single element, the [​:^ascii​:]. This example uses an underscore for
the purpose of getting at least 2 elements in the class.

The bug is only for [​:^ascii​:]. The other posix classes work correctly.

---

---

Flags​:
  category=core
  severity=medium

---

Site configuration information for perl 5.19.7​:

Configured by khw at Sat Dec 14 17​:12​:55 MST 2013.

Summary of my perl5 (revision 5 version 19 subversion 7) configuration​:
  Commit id​: 4cb2d3f
  Platform​:
  osname=linux, osvers=2.6.35-32-generic-pae,
archname=i686-linux-thread-multi-64int-ld
  uname='linux karl 2.6.35-32-generic-pae #67-ubuntu smp mon mar 5
21​:23​:19 utc 2012 i686 gnulinux '
  config_args='-des -Dprefix=/home/khw/fastbleadperl -Dusedevel
-Accflags='-DPERL_BOOL_AS_CHAR' -Dman1dir=none -Dman3dir=none
-Dusemorebits -Dusethreads'
  hint=recommended, useposix=true, d_sigaction=define
  useithreads=define, usemultiplicity=define
  useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
  use64bitint=define, use64bitall=undef, uselongdouble=define
  usemymalloc=n, bincompat5005=undef
  Compiler​:
  cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DPERL_BOOL_AS_CHAR
-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
  optimize='-O2',
  cppflags='-D_REENTRANT -D_GNU_SOURCE -DPERL_BOOL_AS_CHAR
-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
  ccversion='', gccversion='4.4.5', gccosandvers=''
  intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=12345678
  d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
  ivtype='long long', ivsize=8, nvtype='long double', nvsize=12,
Off_t='off_t', lseeksize=8
  alignbytes=4, prototype=define
  Linker and Libraries​:
  ld='cc', ldflags =' -fstack-protector -L/usr/local/lib'
  libpth=/usr/local/lib /lib/../lib /usr/lib/../lib /lib /usr/lib
/usr/lib/i686-linux-gnu
  libs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
  perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
  libc=/lib/libc-2.12.1.so, so=so, useshrplib=false, libperl=libperl.a
  gnulibc_version='2.12.1'
  Dynamic Linking​:
  dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
  cccdlflags='-fPIC', lddlflags='-shared -O2 -L/usr/local/lib
-fstack-protector'

---

@​INC for perl 5.19.7​:
  /home/khw/perl/fastblead/lib

/home/khw/fastbleadperl/lib/site_perl/5.19.7/i686-linux-thread-multi-64int-ld
  /home/khw/fastbleadperl/lib/site_perl/5.19.7
  /home/khw/fastbleadperl/lib/5.19.7/i686-linux-thread-multi-64int-ld
  /home/khw/fastbleadperl/lib/5.19.7
  /home/khw/fastbleadperl/lib/site_perl
  .

---

Environment for perl 5.19.7​:
  HOME=/home/khw
  LANG=en_US.UTF-8
  LANGUAGE=en_US​:en
  LD_LIBRARY_PATH (unset)
  LOGDIR (unset)

PATH=/home/khw/bin​:/home/khw/perl5/perlbrew/bin​:/home/khw/print/bin​:/bin​:/usr/local/sbin​:/usr/local/bin​:/usr/sbin​:/usr/bin​:/sbin​:/usr/games​:/home/khw/cxoffice/bin
  PERL5OPT=-w
  PERL_BADLANG (unset)
  PERL_POD_PEDANTIC=1
  SHELL=/bin/ksh

[p5pRT]

From @khwilliamson

fixed by commit2a79fb6688aa9f27b8ba0dff315f7716b555443e
--
Karl Williamson

[p5pRT]

The RT System itself - Status changed from 'new' to 'open'

[p5pRT]

@khwilliamson - Status changed from 'open' to 'resolved'

[p5pRT]

From @rjbs

Applied to maint-5.18 at 947ba0f.

--
rjbs