[perl #62666] UTF8 failure with sprintf ()

["hmbrand@cpan.org (via RT)" <perlbug-followup@perl.org>]

# New Ticket Created by  hmbrand@cpan.org 
# Please include the string:  [perl #62666]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=62666 >



This is a bug report for perl from hmbrand@cpan.org,
generated with the help of perlbug 1.36 running under perl 5.10.0.

-----------------------------------------------------------------
[Please enter your report here]

--8<--- demo.pl
use strict;
use warnings;
#use Data::Peek;

my $v = "\x{20ac} 12,345.00";
#print DPeek ($v), "\n";
my $x = sprintf "%12.12s|", $v;
-->8---

with Data::Peek for debugging:

PV("\342\202\254 12,345.00"\0) [UTF8 "\x{20ac} 12,345.00"]
panic: utf8_mg_pos_cache_update cache 12 real 11 for ? 12,345.00 at demo.pl line 9.

without:

panic: utf8_mg_pos_cache_update cache 12 real 11 for ? 12,345.00 at demo.pl line 9.

Which is a crash.

[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
    category=core
    severity=medium
---
Site configuration information for perl 5.10.0:

Configured by merijn at Tue Dec 18 13:34:32 CET 2007.

Summary of my perl5 (revision 5 version 10 subversion 0) configuration:
  Platform:
    osname=linux, osvers=2.6.22.13-0.3-default, archname=i686-linux-64int
    uname='linux nb09 2.6.22.13-0.3-default #1 smp 20071119 15:02:58 utc i686 i686 i386 gnulinux '
    config_args='-Duse64bitint -des'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=undef, usemultiplicity=undef
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=undef, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-fno-strict-aliasing -pipe -I/pro/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-O2 -g',
    cppflags='-fno-strict-aliasing -pipe -I/pro/local/include'
    ccversion='', gccversion='4.2.1 (SUSE Linux)', 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='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=4, prototype=define
  Linker and Libraries:
    ld='cc', ldflags ='-L/pro/local/lib'
    libpth=/pro/local/lib /lib /usr/lib /usr/local/lib
    libs=-lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lc
    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc
    libc=/lib/libc-2.6.1.so, so=so, useshrplib=false, libperl=libperl.a
    gnulibc_version='2.6.1'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fPIC', lddlflags='-shared -O2 -L/pro/local/lib'

Locally applied patches:
    

---
@INC for perl 5.10.0:
    /pro/lib/perl5/5.10.0/i686-linux-64int
    /pro/lib/perl5/5.10.0
    /pro/lib/perl5/site_perl/5.10.0/i686-linux-64int
    /pro/lib/perl5/site_perl/5.10.0
    .

---
Environment for perl 5.10.0:
    HOME=/home/merijn
    LANG=en_US.UTF8
    LANGUAGE (unset)
    LOGDIR (unset)
    PERL_BADLANG (unset)
    SHELL=/bin/tcsh

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