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abbrev.pl8380644editdlrm
AnyDBM_File.pm25940644editdlrm
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attributes.pm148770644editdlrm
autodie.pm117630644editdlrm
AutoLoader.pm149970644editdlrm
AutoSplit.pm196370644editdlrm
autouse.pm42380644editdlrm
base.pm69860644editdlrm
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bigfloat.pl73680644editdlrm
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Edit: /usr/share/perl5/AutoSplit.pm (19637B)
package AutoSplit; use Exporter (); use Config qw(%Config); use File::Basename (); use File::Path qw(mkpath); use File::Spec::Functions qw(curdir catfile catdir); use strict; our($VERSION, @ISA, @EXPORT, @EXPORT_OK, $Verbose, $Keep, $Maxlen, $CheckForAutoloader, $CheckModTime); $VERSION = "1.06"; @ISA = qw(Exporter); @EXPORT = qw(&autosplit &autosplit_lib_modules); @EXPORT_OK = qw($Verbose $Keep $Maxlen $CheckForAutoloader $CheckModTime); =head1 NAME AutoSplit - split a package for autoloading =head1 SYNOPSIS autosplit($file, $dir, $keep, $check, $modtime); autosplit_lib_modules(@modules); =head1 DESCRIPTION This function will split up your program into files that the AutoLoader module can handle. It is used by both the standard perl libraries and by the MakeMaker utility, to automatically configure libraries for autoloading. The C interface splits the specified file into a hierarchy rooted at the directory C<$dir>. It creates directories as needed to reflect class hierarchy, and creates the file F. This file acts as both forward declaration of all package routines, and as timestamp for the last update of the hierarchy. The remaining three arguments to C govern other options to the autosplitter. =over 2 =item $keep If the third argument, I<$keep>, is false, then any pre-existing C<*.al> files in the autoload directory are removed if they are no longer part of the module (obsoleted functions). $keep defaults to 0. =item $check The fourth argument, I<$check>, instructs C to check the module currently being split to ensure that it includes a C specification for the AutoLoader module, and skips the module if AutoLoader is not detected. $check defaults to 1. =item $modtime Lastly, the I<$modtime> argument specifies that C is to check the modification time of the module against that of the C file, and only split the module if it is newer. $modtime defaults to 1. =back Typical use of AutoSplit in the perl MakeMaker utility is via the command-line with: perl -e 'use AutoSplit; autosplit($ARGV[0], $ARGV[1], 0, 1, 1)' Defined as a Make macro, it is invoked with file and directory arguments; C will split the specified file into the specified directory and delete obsolete C<.al> files, after checking first that the module does use the AutoLoader, and ensuring that the module is not already currently split in its current form (the modtime test). The C form is used in the building of perl. It takes as input a list of files (modules) that are assumed to reside in a directory B relative to the current directory. Each file is sent to the autosplitter one at a time, to be split into the directory B. In both usages of the autosplitter, only subroutines defined following the perl I<__END__> token are split out into separate files. Some routines may be placed prior to this marker to force their immediate loading and parsing. =head2 Multiple packages As of version 1.01 of the AutoSplit module it is possible to have multiple packages within a single file. Both of the following cases are supported: package NAME; __END__ sub AAA { ... } package NAME::option1; sub BBB { ... } package NAME::option2; sub BBB { ... } package NAME; __END__ sub AAA { ... } sub NAME::option1::BBB { ... } sub NAME::option2::BBB { ... } =head1 DIAGNOSTICS C will inform the user if it is necessary to create the top-level directory specified in the invocation. It is preferred that the script or installation process that invokes C have created the full directory path ahead of time. This warning may indicate that the module is being split into an incorrect path. C will warn the user of all subroutines whose name causes potential file naming conflicts on machines with drastically limited (8 characters or less) file name length. Since the subroutine name is used as the file name, these warnings can aid in portability to such systems. Warnings are issued and the file skipped if C cannot locate either the I<__END__> marker or a "package Name;"-style specification. C will also emit general diagnostics for inability to create directories or files. =head1 AUTHOR C is maintained by the perl5-porters. Please direct any questions to the canonical mailing list. Anything that is applicable to the CPAN release can be sent to its maintainer, though. Author and Maintainer: The Perl5-Porters Maintainer of the CPAN release: Steffen Mueller =head1 COPYRIGHT AND LICENSE This package has been part of the perl core since the first release of perl5. It has been released separately to CPAN so older installations can benefit from bug fixes. This package has the same copyright and license as the perl core: Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others All rights reserved. This program is free software; you can redistribute it and/or modify it under the terms of either: a) the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version, or b) the "Artistic License" which comes with this Kit. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See either the GNU General Public License or the Artistic License for more details. You should have received a copy of the Artistic License with this Kit, in the file named "Artistic". If not, I'll be glad to provide one. You should also have received a copy of the GNU General Public License along with this program in the file named "Copying". If not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA or visit their web page on the internet at http://www.gnu.org/copyleft/gpl.html. For those of you that choose to use the GNU General Public License, my interpretation of the GNU General Public License is that no Perl script falls under the terms of the GPL unless you explicitly put said script under the terms of the GPL yourself. Furthermore, any object code linked with perl does not automatically fall under the terms of the GPL, provided such object code only adds definitions of subroutines and variables, and does not otherwise impair the resulting interpreter from executing any standard Perl script. I consider linking in C subroutines in this manner to be the moral equivalent of defining subroutines in the Perl language itself. You may sell such an object file as proprietary provided that you provide or offer to provide the Perl source, as specified by the GNU General Public License. (This is merely an alternate way of specifying input to the program.) You may also sell a binary produced by the dumping of a running Perl script that belongs to you, provided that you provide or offer to provide the Perl source as specified by the GPL. (The fact that a Perl interpreter and your code are in the same binary file is, in this case, a form of mere aggregation.) This is my interpretation of the GPL. If you still have concerns or difficulties understanding my intent, feel free to contact me. Of course, the Artistic License spells all this out for your protection, so you may prefer to use that. =cut # for portability warn about names longer than $maxlen $Maxlen = 8; # 8 for dos, 11 (14-".al") for SYSVR3 $Verbose = 1; # 0=none, 1=minimal, 2=list .al files $Keep = 0; $CheckForAutoloader = 1; $CheckModTime = 1; my $IndexFile = "autosplit.ix"; # file also serves as timestamp my $maxflen = 255; $maxflen = 14 if $Config{'d_flexfnam'} ne 'define'; if (defined (&Dos::UseLFN)) { $maxflen = Dos::UseLFN() ? 255 : 11; } my $Is_VMS = ($^O eq 'VMS'); # allow checking for valid ': attrlist' attachments. # extra jugglery required to support both 5.8 and 5.9/5.10 features # (support for 5.8 required for cross-compiling environments) my $attr_list = $] >= 5.009005 ? eval <<'__QR__' qr{ \s* : \s* (?: # one attribute (?> # no backtrack (?! \d) \w+ (? \( (?: [^()]++ | (?&nested)++ )*+ \) ) ? ) (?: \s* : \s* | \s+ (?! :) ) )* }x __QR__ : do { # In pre-5.9.5 world we have to do dirty tricks. # (we use 'our' rather than 'my' here, due to the rather complex and buggy # behaviour of lexicals with qr// and (??{$lex}) ) our $trick1; # yes, cannot our and assign at the same time. $trick1 = qr{ \( (?: (?> [^()]+ ) | (??{ $trick1 }) )* \) }x; our $trick2 = qr{ (?> (?! \d) \w+ (?:$trick1)? ) (?:\s*\:\s*|\s+(?!\:)) }x; qr{ \s* : \s* (?: $trick2 )* }x; }; sub autosplit{ my($file, $autodir, $keep, $ckal, $ckmt) = @_; # $file - the perl source file to be split (after __END__) # $autodir - the ".../auto" dir below which to write split subs # Handle optional flags: $keep = $Keep unless defined $keep; $ckal = $CheckForAutoloader unless defined $ckal; $ckmt = $CheckModTime unless defined $ckmt; autosplit_file($file, $autodir, $keep, $ckal, $ckmt); } sub carp{ require Carp; goto &Carp::carp; } # This function is used during perl building/installation # ./miniperl -e 'use AutoSplit; autosplit_lib_modules(@ARGV)' ... sub autosplit_lib_modules { my(@modules) = @_; # list of Module names local $_; # Avoid clobber. while (defined($_ = shift @modules)) { while (m#([^:]+)::([^:].*)#) { # in case specified as ABC::XYZ $_ = catfile($1, $2); } s|\\|/|g; # bug in ksh OS/2 s#^lib/##s; # incase specified as lib/*.pm my($lib) = catfile(curdir(), "lib"); if ($Is_VMS) { # may need to convert VMS-style filespecs $lib =~ s#^\[\]#.\/#; } s#^$lib\W+##s; # incase specified as ./lib/*.pm if ($Is_VMS && /[:>\]]/) { # may need to convert VMS-style filespecs my ($dir,$name) = (/(.*])(.*)/s); $dir =~ s/.*lib[\.\]]//s; $dir =~ s#[\.\]]#/#g; $_ = $dir . $name; } autosplit_file(catfile($lib, $_), catfile($lib, "auto"), $Keep, $CheckForAutoloader, $CheckModTime); } 0; } # private functions my $self_mod_time = (stat __FILE__)[9]; sub autosplit_file { my($filename, $autodir, $keep, $check_for_autoloader, $check_mod_time) = @_; my(@outfiles); local($_); local($/) = "\n"; # where to write output files $autodir ||= catfile(curdir(), "lib", "auto"); if ($Is_VMS) { ($autodir = VMS::Filespec::unixpath($autodir)) =~ s|/\z||; $filename = VMS::Filespec::unixify($filename); # may have dirs } unless (-d $autodir){ mkpath($autodir,0,0755); # We should never need to create the auto dir # here. installperl (or similar) should have done # it. Expecting it to exist is a valuable sanity check against # autosplitting into some random directory by mistake. print "Warning: AutoSplit had to create top-level " . "$autodir unexpectedly.\n"; } # allow just a package name to be used $filename .= ".pm" unless ($filename =~ m/\.pm\z/); open(my $in, "<$filename") or die "AutoSplit: Can't open $filename: $!\n"; my($pm_mod_time) = (stat($filename))[9]; my($autoloader_seen) = 0; my($in_pod) = 0; my($def_package,$last_package,$this_package,$fnr); while (<$in>) { # Skip pod text. $fnr++; $in_pod = 1 if /^=\w/; $in_pod = 0 if /^=cut/; next if ($in_pod || /^=cut/); next if /^\s*#/; # record last package name seen $def_package = $1 if (m/^\s*package\s+([\w:]+)\s*;/); ++$autoloader_seen if m/^\s*(use|require)\s+AutoLoader\b/; ++$autoloader_seen if m/\bISA\s*=.*\bAutoLoader\b/; last if /^__END__/; } if ($check_for_autoloader && !$autoloader_seen){ print "AutoSplit skipped $filename: no AutoLoader used\n" if ($Verbose>=2); return 0; } $_ or die "Can't find __END__ in $filename\n"; $def_package or die "Can't find 'package Name;' in $filename\n"; my($modpname) = _modpname($def_package); # this _has_ to match so we have a reasonable timestamp file die "Package $def_package ($modpname.pm) does not ". "match filename $filename" unless ($filename =~ m/\Q$modpname.pm\E$/ or ($^O eq 'dos') or ($^O eq 'MSWin32') or ($^O eq 'NetWare') or $Is_VMS && $filename =~ m/$modpname.pm/i); my($al_idx_file) = catfile($autodir, $modpname, $IndexFile); if ($check_mod_time){ my($al_ts_time) = (stat("$al_idx_file"))[9] || 1; if ($al_ts_time >= $pm_mod_time and $al_ts_time >= $self_mod_time){ print "AutoSplit skipped ($al_idx_file newer than $filename)\n" if ($Verbose >= 2); return undef; # one undef, not a list } } my($modnamedir) = catdir($autodir, $modpname); print "AutoSplitting $filename ($modnamedir)\n" if $Verbose; unless (-d $modnamedir){ mkpath($modnamedir,0,0777); } # We must try to deal with some SVR3 systems with a limit of 14 # characters for file names. Sadly we *cannot* simply truncate all # file names to 14 characters on these systems because we *must* # create filenames which exactly match the names used by AutoLoader.pm. # This is a problem because some systems silently truncate the file # names while others treat long file names as an error. my $Is83 = $maxflen==11; # plain, case INSENSITIVE dos filenames my(@subnames, $subname, %proto, %package); my @cache = (); my $caching = 1; $last_package = ''; my $out; while (<$in>) { $fnr++; $in_pod = 1 if /^=\w/; $in_pod = 0 if /^=cut/; next if ($in_pod || /^=cut/); # the following (tempting) old coding gives big troubles if a # cut is forgotten at EOF: # next if /^=\w/ .. /^=cut/; if (/^package\s+([\w:]+)\s*;/) { $this_package = $def_package = $1; } if (/^sub\s+([\w:]+)(\s*(?:\(.*?\))?(?:$attr_list)?)/) { print $out "# end of $last_package\::$subname\n1;\n" if $last_package; $subname = $1; my $proto = $2 || ''; if ($subname =~ s/(.*):://){ $this_package = $1; } else { $this_package = $def_package; } my $fq_subname = "$this_package\::$subname"; $package{$fq_subname} = $this_package; $proto{$fq_subname} = $proto; push(@subnames, $fq_subname); my($lname, $sname) = ($subname, substr($subname,0,$maxflen-3)); $modpname = _modpname($this_package); my($modnamedir) = catdir($autodir, $modpname); mkpath($modnamedir,0,0777); my($lpath) = catfile($modnamedir, "$lname.al"); my($spath) = catfile($modnamedir, "$sname.al"); my $path; if (!$Is83 and open($out, ">$lpath")){ $path=$lpath; print " writing $lpath\n" if ($Verbose>=2); } else { open($out, ">$spath") or die "Can't create $spath: $!\n"; $path=$spath; print " writing $spath (with truncated name)\n" if ($Verbose>=1); } push(@outfiles, $path); my $lineno = $fnr - @cache; print $out < lc($_) } @outfiles; } else { @outfiles{@outfiles} = @outfiles; } my(%outdirs,@outdirs); for (@outfiles) { $outdirs{File::Basename::dirname($_)}||=1; } for my $dir (keys %outdirs) { opendir(my $outdir,$dir); foreach (sort readdir($outdir)){ next unless /\.al\z/; my($file) = catfile($dir, $_); $file = lc $file if $Is83 or $Is_VMS; next if $outfiles{$file}; print " deleting $file\n" if ($Verbose>=2); my($deleted,$thistime); # catch all versions on VMS do { $deleted += ($thistime = unlink $file) } while ($thistime); carp ("Unable to delete $file: $!") unless $deleted; } closedir($outdir); } } open(my $ts,">$al_idx_file") or carp ("AutoSplit: unable to create timestamp file ($al_idx_file): $!"); print $ts "# Index created by AutoSplit for $filename\n"; print $ts "# (file acts as timestamp)\n"; $last_package = ''; for my $fqs (@subnames) { my($subname) = $fqs; $subname =~ s/.*:://; print $ts "package $package{$fqs};\n" unless $last_package eq $package{$fqs}; print $ts "sub $subname $proto{$fqs};\n"; $last_package = $package{$fqs}; } print $ts "1;\n"; close($ts); _check_unique($filename, $Maxlen, 1, @outfiles); @outfiles; } sub _modpname ($) { my($package) = @_; my $modpname = $package; if ($^O eq 'MSWin32') { $modpname =~ s#::#\\#g; } else { my @modpnames = (); while ($modpname =~ m#(.*?[^:])::([^:].*)#) { push @modpnames, $1; $modpname = $2; } $modpname = catfile(@modpnames, $modpname); } if ($Is_VMS) { $modpname = VMS::Filespec::unixify($modpname); # may have dirs } $modpname; } sub _check_unique { my($filename, $maxlen, $warn, @outfiles) = @_; my(%notuniq) = (); my(%shorts) = (); my(@toolong) = grep( length(File::Basename::basename($_)) > $maxlen, @outfiles ); foreach (@toolong){ my($dir) = File::Basename::dirname($_); my($file) = File::Basename::basename($_); my($trunc) = substr($file,0,$maxlen); $notuniq{$dir}{$trunc} = 1 if $shorts{$dir}{$trunc}; $shorts{$dir}{$trunc} = $shorts{$dir}{$trunc} ? "$shorts{$dir}{$trunc}, $file" : $file; } if (%notuniq && $warn){ print "$filename: some names are not unique when " . "truncated to $maxlen characters:\n"; foreach my $dir (sort keys %notuniq){ print " directory $dir:\n"; foreach my $trunc (sort keys %{$notuniq{$dir}}) { print " $shorts{$dir}{$trunc} truncate to $trunc\n"; } } } } 1; __END__ # test functions so AutoSplit.pm can be applied to itself: sub test1 ($) { "test 1\n"; } sub test2 ($$) { "test 2\n"; } sub test3 ($$$) { "test 3\n"; } sub testtesttesttest4_1 { "test 4\n"; } sub testtesttesttest4_2 { "duplicate test 4\n"; } sub Just::Another::test5 { "another test 5\n"; } sub test6 { return join ":", __FILE__,__LINE__; } package Yet::Another::AutoSplit; sub testtesttesttest4_1 ($) { "another test 4\n"; } sub testtesttesttest4_2 ($$) { "another duplicate test 4\n"; } package Yet::More::Attributes; sub test_a1 ($) : locked :locked { 1; } sub test_a2 : locked { 1; }