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[ID 20000323.060] another error in perlunicode.pod

From:
Joseph N. Hall
Date:
March 23, 2000 21:08
Subject:
[ID 20000323.060] another error in perlunicode.pod
Message ID:
200003240513.WAA31245@dixie.cscaper.com

This is a bug report for perl from joseph@dixie.cscaper.com,
generated with the help of perlbug 1.27 running under perl v5.5.670.


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

           UTF-8 characters are
           specified by putting the hexadecimal code within
           curlies after the \x.  For instance, a Unicode smiley
           face is \x{263A}.  A character in the Latin-1 range
           (128..255) should be written \x{ab} rather than \xab,
           since the former will turn into a two-byte UTF-8 code,
           while the latter will continue to be interpreted as
           generating a 8-bit byte rather than a character.

Also untrue.

use utf8;
sub s2i { "[" . join(' ', unpack "C*", $_[0]) . "]" }
print ord("\x{c8}"), " ", s2i("\x{c8}"), "\n";
print ord("\xc8"), " ", s2i("\x{c8}"), "\n";
print ord(v200), " ", s2i(v200), "\n";

gives

200 [195 136]
200 [195 136]
200 [200]

and without use utf8:

200 [200]
200 [200]
200 [200]

So, as far as I can tell, \x{c8} has the same semantics as \xc8.
Also, note the behavior of v200.

[Please do not change anything below this line]
-----------------------------------------------------------------

---
Site configuration information for perl v5.5.670:

Configured by joseph at Wed Mar 22 17:29:59 MST 2000.

Summary of my perl5 (revision 5.0 version 5 subversion 670) configuration:
  Platform:
    osname=linux, osvers=2.2.12-20, archname=i586-linux-64all
    uname='linux dixie.cscaper.com 2.2.12-20 #1 mon sep 27 10:25:54 edt 1999 i586 unknown '
    config_args=''
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
    useperlio=undef d_sfio=undef uselargefiles=define 
    use64bitint=define use64bitall=define uselongdouble=define usesocks=undef
  Compiler:
    cc='cc', optimize='-O2', gccversion=egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)
    cppflags='-fno-strict-aliasing -I/usr/local/include'
    ccflags ='-fno-strict-aliasing -I/usr/local/include'
    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 long', ivsize=8, nvtype='long double', nvsize=12, Off_t='off_t', lseeksize=4
    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 -lndbm -lgdbm -ldb -ldl -lm -lc -lposix -lcrypt
    libc=/lib/libc-2.1.2.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:
    

---
@INC for perl v5.5.670:
    /usr/local/devel/perl-longlong/lib/5.5.670/i586-linux-64all
    /usr/local/devel/perl-longlong/lib/5.5.670
    /usr/local/devel/perl-longlong/lib/site_perl/5.5.670/i586-linux-64all
    /usr/local/devel/perl-longlong/lib/site_perl/5.5.670
    /usr/local/devel/perl-longlong/lib/site_perl
    .

---
Environment for perl v5.5.670:
    HOME=/home/joseph
    LANG=en_US
    LANGUAGE (unset)
    LC_ALL=en_US
    LD_LIBRARY_PATH=/lib:/usr/lib:/usr/local/lib:/usr/X11R6/lib:/oracle/sw/lib
    LOGDIR (unset)
    PATH=/bin:/usr/bin:/home/joseph/bin:/usr/local/bin:/usr/X11R6/bin:/usr/local/frame/bin:/usr/local/mysql/bin:/oracle/sw/bin:/usr/sbin:/usr/games:.
    PERL_BADLANG (unset)
    SHELL=/bin/tcsh



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