use switch 'perl6' string matching

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Migrated from rt.perl.org#31445 (status was 'resolved')

Searchable as RT31445$

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From brendon@brendon.com

Created by brendon@brendon.com

when using a given statement. given ("asdf") {   when /r.*/ {   } }

the having a string match on when doesn't work. it's documented that it does though. i changed all my given's to switch and when's to case and it works fine.

Perl Info

``` Flags: category=library severity=medium Site configuration information for perl v5.8.4: Configured by Debian Project at Wed May 12 00:32:16 EST 2004. Summary of my perl5 (revision 5 version 8 subversion 4) configuration: Platform: osname=linux, osvers=2.4.26-ti1211, archname=i386-linux-thread-multi uname='linux kosh 2.4.26-ti1211 #1 sat apr 24 14:46:58 est 2004 i686 gnulinux ' config_args='-Dusethreads -Duselargefiles -Dccflags=-DDEBIAN -Dcccdlflags=-fPIC -Darchname=i386-linux -Dprefix=/usr -Dprivlib=/usr/share/perl/5.8 -Darchlib=/usr/lib/perl/5.8 -Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 -Dvendorarch=/usr/lib/perl5 -Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl/5.8.4 -Dsitearch=/usr/local/lib/perl/5.8.4 -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dsiteman1dir=/usr/local/man/man1 -Dsiteman3dir=/usr/local/man/man3 -Dman1ext=1 -Dman3ext=3perl -Dpager=/usr/bin/sensible-pager -Uafs -Ud_csh -Uusesfio -Uusenm -Duseshrplib -Dlibperl=libperl.so.5.8.4 -Dd_dosuid -des' hint=recommended, useposix=true, d_sigaction=define usethreads=define use5005threads=undef useithreads=define usemultiplicity=define useperlio=define d_sfio=undef uselargefiles=define usesocks=undef use64bitint=undef use64bitall=undef uselongdouble=undef usemymalloc=n, bincompat5005=undef Compiler: cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBIAN -fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64', optimize='-O2', cppflags='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBIAN -fno-strict-aliasing -I/usr/local/include' ccversion='', gccversion='3.3.3 (Debian 20040429)', 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=8 alignbytes=4, prototype=define Linker and Libraries: ld='cc', ldflags =' -L/usr/local/lib' libpth=/usr/local/lib /lib /usr/lib libs=-lgdbm -lgdbm_compat -ldb -ldl -lm -lpthread -lc -lcrypt perllibs=-ldl -lm -lpthread -lc -lcrypt libc=/lib/libc-2.3.2.so, so=so, useshrplib=true, libperl=libperl.so.5.8.4 gnulibc_version='2.3.2' Dynamic Linking: dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E' cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib' Locally applied patches: @INC for perl v5.8.4: /etc/perl /usr/local/lib/perl/5.8.4 /usr/local/share/perl/5.8.4 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.8 /usr/share/perl/5.8 /usr/local/lib/site_perl /usr/local/lib/perl/5.8.2 /usr/local/share/perl/5.8.2 . Environment for perl v5.8.4: HOME=/home/brendon LANG=C LANGUAGE (unset) LD_LIBRARY_PATH (unset) LOGDIR (unset) PATH=/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin PERL_BADLANG (unset) SHELL=/usr/bin/tcsh ```

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From @iabyn

On Sat\, Sep 04\, 2004 at 03​:15​:24AM -0000\, brendon @​ brendon. com wrote​:

when using a given statement. given ("asdf") { when /r.*/ { } }

The following works for me​:

  use Switch 'perl6';

  given ("asdf") {   when /a.*/ { print "matched\n" }   }

Could you give a complete (but short!) example of a program which fails?

Dave.

-- The Enterprise successfully ferries an alien VIP from one place to another without serious incident.   -- Things That Never Happen in "Star Trek" #7

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

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From brendon@brendon.com

I ended up fixing the problem.

I think the problem was that I had the when/given statement within a sub. Once moved out to the main program\, I think it worked.

Maybe the problem was that the use switch perl6 doesn't give an error about it and when I tried the perl5 case statement instead\, I got a better error?

sorry if that's not it\, but I working off memory :)

-bb

-----Original Message----- From​: Dave Mitchell via RT [mailto​:perlbug-followup@​perl.org] Sent​: Tuesday\, September 14\, 2004 4​:08 PM To​: brendon@​brendon.com Subject​: Re​: [perl #31445] use switch 'perl6' string matching

On Sat\, Sep 04\, 2004 at 03​:15​:24AM -0000\, brendon @​ brendon. com wrote​:

when using a given statement. given ("asdf") { when /r.*/ { } }

The following works for me​:

use Switch 'perl6';

given \("asdf"\) \{
when /a\.\*/ \{ print "matched\\n" \}
\}

Could you give a complete (but short!) example of a program which fails?

Dave.

-- The Enterprise successfully ferries an alien VIP from one place to another without serious incident. -- Things That Never Happen in "Star Trek" #7

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