Don't assume that the epoch starts at 00:00:00, January 1, 1970,
because that is OS- and implementation-specific. It is better to
store a date in an unambiguous representation. The ISO 8601 standard
-defines YYYY-MM-DD as the date format, or YYYY-MM-DDTHH-MM-SS
+defines YYYY-MM-DD as the date format, or YYYY-MM-DDTHH:MM:SS
(that's a literal "T" separating the date from the time).
Please do use the ISO 8601 instead of making us guess what
date 02/03/04 might be. ISO 8601 even sorts nicely as-is.
missing!) virtual memory systems then you want to be I<especially> mindful
of avoiding wasteful constructs such as:
- # NOTE: this is no longer "bad" in perl5.005
- for (0..10000000) {} # bad
- for (my $x = 0; $x <= 10000000; ++$x) {} # good
-
my @lines = <$very_large_file>; # bad
while (<$fh>) {$file .= $_} # sometimes bad
=item *
-Testing results: http://www.cpantesters.org/
+Testing results: L<http://www.cpantesters.org/>
=back
Windows Vista MSWin32 MSWin32-x86 2 6 00
Windows 7 MSWin32 MSWin32-x86 2 6 01
Windows 7 MSWin32 MSWin32-x64 2 6 01
+ Windows 2008 MSWin32 MSWin32-x86 2 6 01
+ Windows 2008 MSWin32 MSWin32-x64 2 6 01
Windows CE MSWin32 ? 3
Cygwin cygwin cygwin
=item *
-The djgpp environment for DOS, http://www.delorie.com/djgpp/
+The djgpp environment for DOS, L<http://www.delorie.com/djgpp/>
and L<perldos>.
=item *
The EMX environment for DOS, OS/2, etc. emx@iaehv.nl,
-
ftp://hobbes.nmsu.edu/pub/os2/dev/emx/ Also L<perlos2>.
+
L<ftp://hobbes.nmsu.edu/pub/os2/dev/emx/> Also L<perlos2>.
=item *
=item *
-The ActiveState Pages, http://www.activestate.com/
+The ActiveState Pages, L<http://www.activestate.com/>
=item *
The Cygwin environment for Win32; F<README.cygwin> (installed
-as L<perlcygwin>), http://www.cygwin.com/
+as L<perlcygwin>), L<http://www.cygwin.com/>
=item *
The U/WIN environment for Win32,
-http://www.research.att.com/sw/tools/uwin/
+L<http://www.research.att.com/sw/tools/uwin/>
=item *
=item *
-F<README.vms> (installed as
L<README_vms>), L<perlvms>
+F<README.vms> (installed as
F<README_vms>), L<perlvms>
=item *
=item *
-vmsperl on the web, http://www.sidhe.org/vmsperl/index.html
+vmsperl on the web, L<http://www.sidhe.org/vmsperl/index.html>
=back
can contain up to 255 characters, are prohibited from starting
with a C<-> character, and the set of prohibited characters is
reduced to any character matching C<< tr/#%*<>?// >>. There are
-restrictions involving spaces and apostrophies: these characters
+restrictions involving spaces and apostrophes: these characters
must not begin or end a name, nor can they immediately precede or
follow a period. Additionally, a space must not immediately
precede another space or hyphen. Specifically, the following
=item *
-VOS Perl on the web at http://ftp.stratus.com/pub/vos/posix/posix.html
+VOS Perl on the web at L<http://ftp.stratus.com/pub/vos/posix/posix.html>
=back
=item *
AS/400 Perl information at
-http://as400.rochester.ibm.com/
+L<http://as400.rochester.ibm.com/>
as well as on CPAN in the F<ports/> directory.
=back
The Unix emulation library's translation of filenames to native assumes
that this sort of translation is required, and it allows a user-defined list
of known suffixes that it will transpose in this fashion. This may
-seem transparent, but consider that with these rules C<foo/bar/baz.h>
-and C<foo/bar/h/baz> both map to C<foo.bar.h.baz>, and that C<readdir> and
+seem transparent, but consider that with these rules F<foo/bar/baz.h>
+and F<foo/bar/h/baz> both map to F<foo.bar.h.baz>, and that C<readdir> and
C<glob> cannot and do not attempt to emulate the reverse mapping. Other
C<.>'s in filenames are translated to C</>.
=item *
HP 300 MPE/iX, F<README.mpeix> and Mark Bixby's web page
-http://www.bixby.org/mark/porting.html
+L<http://www.bixby.org/mark/porting.html>
=item *
A free perl5-based PERL.NLM for Novell Netware is available in
-precompiled binary and source code form from http://www.novell.com/
+precompiled binary and source code form from L<http://www.novell.com/>
as well as from CPAN.
=item *
Does not automatically flush output handles on some platforms.
(SunOS, Solaris, HP-UX)
+Not supported. (Symbian OS)
+
=item exit
Emulates Unix exit() (which considers C<exit 1> to indicate an error) by
the C library _POSIX_EXIT macro so that it can be decoded by other
programs, particularly ones written in C, like the GNV package. (VMS)
+C<exit()> resets file pointers, which is a problem when called
+from a child process (created by C<fork()>) in C<BEGIN>.
+A workaround is to use C<POSIX::_exit>. (Solaris)
+
+ exit unless $Config{archname} =~ /\bsolaris\b/;
+ require POSIX and POSIX::_exit(0);
+
=item fcntl
Not implemented. (Win32)
+
Some functions available based on the version of VMS. (VMS)
=item flock
Not implemented (VMS, S<RISC OS>, VOS).
-Available only on Windows NT (not on Windows 95). (Win32)
-
=item fork
Not implemented. (AmigaOS, S<RISC OS>, VM/ESA, VMS)
The following platforms are known to build Perl 5.12 (as of April 2010,
its release date) from the standard source code distribution available
-at http://www.cpan.org/src
+at L<http://www.cpan.org/src>
=over
=item FreeBSD
+=item Debian GNU/kFreeBSD
+
=item Haiku
=item Irix (6.5. What else?)
=back
-
=item Symbian (Series 60 v3, 3.2 and 5 - what else?)
=item Stratus VOS / OpenVOS
=back
-=head1 EOL Platforms (Perl 5.12)
+=head1 EOL Platforms (Perl 5.14)
The following platforms were supported by a previous version of
Perl but have been officially removed from Perl's source code
=back
-The following platforms may still work as of Perl 5.12, but Perl's
-developers have made an explicit decision to discontinue support for
-them:
+The following platforms were supported up to 5.10. They may still
+have worked in 5.12, but supporting code has been removed for 5.14:
=over
As of July 2002 (the Perl release 5.8.0), the following platforms were
able to build Perl from the standard source code distribution
-available at http://www.cpan.org/src/
+available at L<http://www.cpan.org/src/>
AIX
BeOS
Unisys Dynix
The following platforms have their own source code distributions and
-binaries available via http://www.cpan.org/ports/
+binaries available via L<http://www.cpan.org/ports/>
Perl release
Tandem Guardian 5.004
The following platforms have only binaries available via
-http://www.cpan.org/ports/index.html :
+L<http://www.cpan.org/ports/index.html> :
Perl release
Although we do suggest that you always build your own Perl from
the source code, both for maximal configurability and for security,
in case you are in a hurry you can check
-http://www.cpan.org/ports/index.html for binary distributions.
+L<http://www.cpan.org/ports/index.html> for binary distributions.
=head1 SEE ALSO
-L<perlaix>, L<perlamiga>, L<perl
apollo>, L<perlbeos>, L<perlbs2000>,
+L<perlaix>, L<perlamiga>, L<perlbeos>, L<perlbs2000>,
L<perlce>, L<perlcygwin>, L<perldgux>, L<perldos>, L<perlepoc>,
L<perlebcdic>, L<perlfreebsd>, L<perlhurd>, L<perlhpux>, L<perlirix>,
L<perlmacos>, L<perlmacosx>, L<perlmpeix>,
Paul J. Schinder <schinder@pobox.com>,
Michael G Schwern <schwern@pobox.com>,
Dan Sugalski <dan@sidhe.org>,
-Nathan Torkington <gnat@frii.com>.
+Nathan Torkington <gnat@frii.com>,
John Malmberg <wb8tyw@qsl.net>
https://perl5.git.perl.org / perl5.git / blobdiff