p5pRT
commented
24 years ago From desar@club-internet.fr
The following compound statements may be used to control flow:
if (EXPR) BLOCK if (EXPR) BLOCK else BLOCK if (EXPR) BLOCK elsif (EXPR) BLOCK ... else BLOCK LABEL while (EXPR) BLOCK LABEL while (EXPR) BLOCK continue BLOCK LABEL for (EXPR; EXPR; EXPR) BLOCK LABEL foreach VAR (LIST) BLOCK LABEL BLOCK continue BLOCK
which seems to say you cannot write statements such
LABEL foreach VAR (LIST) BLOCK continue BLOCK
although it seems to work perfectly:
my $i=100; for(1\,2\,3\,4\,5) { $_ % 2 or next; print "$_\n" } continue { $i++ } print "=>$i"
compiles and correctly outputs
1 3 5 =>105
Is it an 'accidental' feature (I find *very* useful) or a missing line in perlsyn.pod ?
-- perl -V
This is perl\, version 5.005_03 built for i686-linux-thread
Copyright 1987-1999\, Larry Wall
Perl may be copied only under the terms of either the Artistic License or the GNU General Public License\, which may be found in the Perl 5.0 source kit.
Complete documentation for Perl\, including FAQ lists\, should be found on this system using `man perl' or `perldoc perl'. If you have access to the Internet\, point your browser at http://www.perl.com/\, the Perl Home Page.
[root@fdesar /root]# perl -V Summary of my perl5 (5.0 patchlevel 5 subversion 3) configuration: Platform: osname=linux\, osvers=2.0.36\, archname=i686-linux-thread uname='linux fdesar 2.0.36 #5 sun nov 29 14:21:28 cet 1998 i686 unknown ' hint=recommended\, useposix=true\, d_sigaction=define usethreads=define useperlio=undef d_sfio=undef Compiler: cc='cc'\, optimize='-O2'\, gccversion=2.7.2.3 cppflags='-D_REENTRANT -Dbool=char -DHAS_BOOL -I/usr/local/include' ccflags ='-D_REENTRANT -Dbool=char -DHAS_BOOL -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 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 -lpthread -lc -lposix -lcrypt libc=\, 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'
Characteristics of this binary (from libperl): Built under linux Compiled at Mar 29 1999 16:01:39 @INC: /usr/lib/perl5/5.00503/i686-linux-thread /usr/lib/perl5/5.00503 /usr/lib/perl5/site_perl/5.005/i686-linux-thread /usr/lib/perl5/site_perl/5.005 . -- François Désarménien
Membre de l'ACM \<http://www.acm.org> Membre de l'AFUL \<http://www.aful.org>
Migrated from rt.perl.org#930 (status was 'resolved')
Searchable as RT930$