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perlsyn.pod and continue blocks with foreach #126

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p5pRT opened this issue Jun 29, 1999 · 3 comments
Closed

perlsyn.pod and continue blocks with foreach #126

p5pRT opened this issue Jun 29, 1999 · 3 comments

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@p5pRT
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@p5pRT p5pRT commented Jun 29, 1999

Migrated from rt.perl.org#930 (status was 'resolved')

Searchable as RT930$

@p5pRT
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@p5pRT p5pRT commented Jun 29, 1999

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>

@p5pRT
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@p5pRT p5pRT commented Jul 24, 2000

From [Unknown Contact. See original ticket]

fixed in perl-current

@p5pRT
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@p5pRT p5pRT commented Nov 28, 2003

From The RT System itself

fixed in perl-current

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