Revision 75b851fe
Von Moritz Bunkus vor etwa 14 Jahren hinzugefügt
SL/InstallationCheck.pm | ||
---|---|---|
{ name => "Rose::Object", url => "http://search.cpan.org/~jsiracusa/", debian => 'librose-object-perl' },
|
||
{ name => "Rose::DB", url => "http://search.cpan.org/~jsiracusa/", debian => 'librose-db-perl' },
|
||
{ name => "Rose::DB::Object", url => "http://search.cpan.org/~jsiracusa/", debian => 'librose-db-object-perl' },
|
||
{ name => "Sort::Naturally", url => "http://search.cpan.org/~sburke/", debian => 'libsort-naturally-perl' },
|
||
{ name => "Template", version => '2.18', url => "http://search.cpan.org/~abw/", debian => 'libtemplate-perl' },
|
||
{ name => "Text::CSV_XS", version => '0.23', url => "http://search.cpan.org/~hmbrand/", debian => 'libtext-csv-xs-perl' },
|
||
{ name => "Text::Iconv", version => '1.2', url => "http://search.cpan.org/~mpiotr/", debian => 'libtext-iconv-perl' },
|
doc/modules/README.Sort-Naturally | ||
---|---|---|
README for Sort::Naturally
|
||
Time-stamp: "2001-05-25 21:17:33 MDT"
|
||
|
||
Sort::Naturally
|
||
|
||
[extracted from the Pod...]
|
||
|
||
NAME
|
||
Sort::Naturally -- sort lexically, but sort numeral parts
|
||
numerically
|
||
|
||
SYNOPSIS
|
||
@them = nsort(qw(
|
||
foo12a foo12z foo13a foo 14 9x foo12 fooa foolio Foolio Foo12a
|
||
));
|
||
print join(' ', @them), "\n";
|
||
|
||
Prints:
|
||
|
||
9x 14 foo fooa foolio Foolio foo12 foo12a Foo12a foo12z foo13a
|
||
|
||
(Or "foo12a" + "Foo12a" and "foolio" + "Foolio" and might be
|
||
switched, depending on your locale.)
|
||
|
||
DESCRIPTION
|
||
This module exports two functions, nsort and ncmp; they are
|
||
used in implementing my idea of a "natural sorting"
|
||
algorithm. Under natural sorting, numeric substrings are
|
||
compared numerically, and other word-characters are compared
|
||
lexically.
|
||
|
||
This is the way I define natural sorting:
|
||
|
||
o Non-numeric word-character substrings are sorted
|
||
lexically, case-insensitively: "Foo" comes between
|
||
"fish" and "fowl".
|
||
|
||
o Numeric substrings are sorted numerically: "100" comes
|
||
after "20", not before.
|
||
|
||
o \W substrings (neither words-characters nor digits) are
|
||
ignored.
|
||
|
||
o Our use of \w, \d, \D, and \W is locale-sensitive:
|
||
Sort::Naturally uses a use locale statement.
|
||
|
||
o When comparing two strings, where a numeric substring
|
||
in one place is not up against a numeric substring in
|
||
another, the non-numeric always comes first. This is
|
||
fudged by reading pretending that the lack of a number
|
||
substring has the value -1, like so:
|
||
|
||
foo => "foo", -1
|
||
foobar => "foo", -1, "bar"
|
||
foo13 => "foo", 13,
|
||
foo13xyz => "foo", 13, "xyz"
|
||
|
||
That's so that "foo" will come before "foo13", which
|
||
will come before "foobar".
|
||
|
||
o The start of a string is exceptional: leading non-\W
|
||
(non-word, non-digit) components are are ignored, and
|
||
numbers come before letters.
|
||
|
||
o I define "numeric substring" just as sequences matching
|
||
m/\d+/ -- scientific notation, commas, decimals, etc.,
|
||
are not seen. If your data has thousands separators in
|
||
numbers ("20,000 Leagues Under The Sea" or "20.000
|
||
lieues sous les mers"), consider stripping them before
|
||
feeding them to nsort or ncmp.
|
||
|
||
[end Pod extract]
|
||
|
||
|
||
INSTALLATION
|
||
|
||
You install Sort::Naturally, as you would install any perl module
|
||
library, by running these commands:
|
||
|
||
perl Makefile.PL
|
||
make
|
||
make test
|
||
make install
|
||
|
||
If you want to install a private copy of Sort::Naturally in your home
|
||
directory, then you should try to produce the initial Makefile with
|
||
something like this command:
|
||
|
||
perl Makefile.PL LIB=~/perl
|
||
|
||
See perldoc perlmodinstall for more information on installing modules.
|
||
|
||
|
||
DOCUMENTATION
|
||
|
||
POD-format documentation is included in Naturally.pm. POD is readable
|
||
with the 'perldoc' utility. See ChangeLog for recent changes.
|
||
|
||
|
||
SUPPORT
|
||
|
||
Questions, bug reports, useful code bits, and suggestions for
|
||
Sort::Naturally should just be sent to me at sburke@cpan.org
|
||
|
||
|
||
AVAILABILITY
|
||
|
||
The latest version of Sort::Naturally is available from the
|
||
Comprehensive Perl Archive Network (CPAN). Visit
|
||
<http://www.perl.com/CPAN/> to find a CPAN site near you.
|
||
|
||
|
||
COPYRIGHT
|
||
|
||
Copyright 2001, Sean M. Burke <sburke@cpan.org>, all rights
|
||
reserved.
|
||
|
||
The programs and documentation in this dist are distributed in
|
||
the hope that they will be useful, but without any warranty; without
|
||
even the implied warranty of merchantability or fitness for a
|
||
particular purpose.
|
||
|
||
This library is free software; you can redistribute it and/or modify
|
||
it under the same terms as Perl itself.
|
modules/fallback/Sort/Naturally.pm | ||
---|---|---|
|
||
require 5;
|
||
package Sort::Naturally; # Time-stamp: "2004-12-29 18:30:03 AST"
|
||
$VERSION = '1.02';
|
||
@EXPORT = ('nsort', 'ncmp');
|
||
require Exporter;
|
||
@ISA = ('Exporter');
|
||
|
||
use strict;
|
||
use locale;
|
||
use integer;
|
||
|
||
#-----------------------------------------------------------------------------
|
||
# constants:
|
||
BEGIN { *DEBUG = sub () {0} unless defined &DEBUG }
|
||
|
||
use Config ();
|
||
BEGIN {
|
||
# Make a constant such that if a whole-number string is that long
|
||
# or shorter, we KNOW it's treatable as an integer
|
||
no integer;
|
||
my $x = length(256 ** $Config::Config{'intsize'} / 2) - 1;
|
||
die "Crazy intsize: <$Config::Config{'intsize'}>" if $x < 4;
|
||
eval 'sub MAX_INT_SIZE () {' . $x . '}';
|
||
die $@ if $@;
|
||
print "intsize $Config::Config{'intsize'} => MAX_INT_SIZE $x\n" if DEBUG;
|
||
}
|
||
|
||
sub X_FIRST () {-1}
|
||
sub Y_FIRST () { 1}
|
||
|
||
my @ORD = ('same', 'swap', 'asis');
|
||
|
||
#-----------------------------------------------------------------------------
|
||
# For lack of a preprocessor:
|
||
|
||
my($code, $guts);
|
||
$guts = <<'EOGUTS'; # This is the guts of both ncmp and nsort:
|
||
|
||
if($x eq $y) {
|
||
# trap this expensive case first, and then fall thru to tiebreaker
|
||
$rv = 0;
|
||
|
||
# Convoluted hack to get numerics to sort first, at string start:
|
||
} elsif($x =~ m/^\d/s) {
|
||
if($y =~ m/^\d/s) {
|
||
$rv = 0; # fall thru to normal comparison for the two numbers
|
||
} else {
|
||
$rv = X_FIRST;
|
||
DEBUG > 1 and print "Numeric-initial $x trumps letter-initial $y\n";
|
||
}
|
||
} elsif($y =~ m/^\d/s) {
|
||
$rv = Y_FIRST;
|
||
DEBUG > 1 and print "Numeric-initial $y trumps letter-initial $x\n";
|
||
} else {
|
||
$rv = 0;
|
||
}
|
||
|
||
unless($rv) {
|
||
# Normal case:
|
||
$rv = 0;
|
||
DEBUG and print "<$x> and <$y> compared...\n";
|
||
|
||
Consideration:
|
||
while(length $x and length $y) {
|
||
|
||
DEBUG > 2 and print " <$x> and <$y>...\n";
|
||
|
||
# First, non-numeric comparison:
|
||
$x2 = ($x =~ m/^(\D+)/s) ? length($1) : 0;
|
||
$y2 = ($y =~ m/^(\D+)/s) ? length($1) : 0;
|
||
# Now make x2 the min length of the two:
|
||
$x2 = $y2 if $x2 > $y2;
|
||
if($x2) {
|
||
DEBUG > 1 and printf " <%s> and <%s> lexically for length $x2...\n",
|
||
substr($x,0,$x2), substr($y,0,$x2);
|
||
do {
|
||
my $i = substr($x,0,$x2);
|
||
my $j = substr($y,0,$x2);
|
||
my $sv = $i cmp $j;
|
||
print "SCREAM! on <$i><$j> -- $sv != $rv \n" unless $rv == $sv;
|
||
last;
|
||
}
|
||
|
||
|
||
if $rv =
|
||
# The ''. things here force a copy that seems to work around a
|
||
# mysterious intermittent bug that 'use locale' provokes in
|
||
# many versions of Perl.
|
||
$cmp
|
||
? $cmp->(substr($x,0,$x2) . '',
|
||
substr($y,0,$x2) . '',
|
||
)
|
||
:
|
||
scalar(( substr($x,0,$x2) . '' ) cmp
|
||
( substr($y,0,$x2) . '' )
|
||
)
|
||
;
|
||
# otherwise trim and keep going:
|
||
substr($x,0,$x2) = '';
|
||
substr($y,0,$x2) = '';
|
||
}
|
||
|
||
# Now numeric:
|
||
# (actually just using $x2 and $y2 as scratch)
|
||
|
||
if( $x =~ s/^(\d+)//s ) {
|
||
$x2 = $1;
|
||
if( $y =~ s/^(\d+)//s ) {
|
||
# We have two numbers here.
|
||
DEBUG > 1 and print " <$x2> and <$1> numerically\n";
|
||
if(length($x2) < MAX_INT_SIZE and length($1) < MAX_INT_SIZE) {
|
||
# small numbers: we can compare happily
|
||
last if $rv = $x2 <=> $1;
|
||
} else {
|
||
# ARBITRARILY large integers!
|
||
|
||
# This saves on loss of precision that could happen
|
||
# with actual stringification.
|
||
# Also, I sense that very large numbers aren't too
|
||
# terribly common in sort data.
|
||
|
||
# trim leading 0's:
|
||
($y2 = $1) =~ s/^0+//s;
|
||
$x2 =~ s/^0+//s;
|
||
print " Treating $x2 and $y2 as bigint\n" if DEBUG;
|
||
|
||
no locale; # we want the dumb cmp back.
|
||
last if $rv = (
|
||
# works only for non-negative whole numbers:
|
||
length($x2) <=> length($y2)
|
||
# the longer the numeral, the larger the value
|
||
or $x2 cmp $y2
|
||
# between equals, compare lexically!! amazing but true.
|
||
);
|
||
}
|
||
} else {
|
||
# X is numeric but Y isn't
|
||
$rv = Y_FIRST;
|
||
last;
|
||
}
|
||
} elsif( $y =~ s/^\d+//s ) { # we don't need to capture the substring
|
||
$rv = X_FIRST;
|
||
last;
|
||
}
|
||
# else one of them is 0-length.
|
||
|
||
# end-while
|
||
}
|
||
}
|
||
EOGUTS
|
||
|
||
sub maker {
|
||
my $code = $_[0];
|
||
$code =~ s/~COMPARATOR~/$guts/g || die "Can't find ~COMPARATOR~";
|
||
eval $code;
|
||
die $@ if $@;
|
||
}
|
||
|
||
##############################################################################
|
||
|
||
maker(<<'EONSORT');
|
||
sub nsort {
|
||
# get options:
|
||
my($cmp, $lc);
|
||
($cmp,$lc) = @{shift @_} if @_ and ref($_[0]) eq 'ARRAY';
|
||
|
||
return @_ unless @_ > 1 or wantarray; # be clever
|
||
|
||
my($x, $x2, $y, $y2, $rv); # scratch vars
|
||
|
||
# We use a Schwartzian xform to memoize the lc'ing and \W-removal
|
||
|
||
map $_->[0],
|
||
sort {
|
||
if($a->[0] eq $b->[0]) { 0 } # trap this expensive case
|
||
else {
|
||
|
||
$x = $a->[1];
|
||
$y = $b->[1];
|
||
|
||
~COMPARATOR~
|
||
|
||
# Tiebreakers...
|
||
DEBUG > 1 and print " -<${$a}[0]> cmp <${$b}[0]> is $rv ($ORD[$rv])\n";
|
||
$rv ||= (length($x) <=> length($y)) # shorter is always first
|
||
|| ($cmp and $cmp->($x,$y) || $cmp->($a->[0], $b->[0]))
|
||
|| ($x cmp $y )
|
||
|| ($a->[0] cmp $b->[0])
|
||
;
|
||
|
||
DEBUG > 1 and print " <${$a}[0]> cmp <${$b}[0]> is $rv ($ORD[$rv])\n";
|
||
$rv;
|
||
}}
|
||
|
||
map {;
|
||
$x = $lc ? $lc->($_) : lc($_); # x as scratch
|
||
$x =~ s/\W+//s;
|
||
[$_, $x];
|
||
}
|
||
@_
|
||
}
|
||
EONSORT
|
||
|
||
#-----------------------------------------------------------------------------
|
||
maker(<<'EONCMP');
|
||
sub ncmp {
|
||
# The guts are basically the same as above...
|
||
|
||
# get options:
|
||
my($cmp, $lc);
|
||
($cmp,$lc) = @{shift @_} if @_ and ref($_[0]) eq 'ARRAY';
|
||
|
||
if(@_ == 0) {
|
||
@_ = ($a, $b); # bit of a hack!
|
||
DEBUG > 1 and print "Hacking in <$a><$b>\n";
|
||
} elsif(@_ != 2) {
|
||
require Carp;
|
||
Carp::croak("Not enough options to ncmp!");
|
||
}
|
||
my($a,$b) = @_;
|
||
my($x, $x2, $y, $y2, $rv); # scratch vars
|
||
|
||
DEBUG > 1 and print "ncmp args <$a><$b>\n";
|
||
if($a eq $b) { # trap this expensive case
|
||
0;
|
||
} else {
|
||
$x = ($lc ? $lc->($a) : lc($a));
|
||
$x =~ s/\W+//s;
|
||
$y = ($lc ? $lc->($b) : lc($b));
|
||
$y =~ s/\W+//s;
|
||
|
||
~COMPARATOR~
|
||
|
||
|
||
# Tiebreakers...
|
||
DEBUG > 1 and print " -<$a> cmp <$b> is $rv ($ORD[$rv])\n";
|
||
$rv ||= (length($x) <=> length($y)) # shorter is always first
|
||
|| ($cmp and $cmp->($x,$y) || $cmp->($a,$b))
|
||
|| ($x cmp $y)
|
||
|| ($a cmp $b)
|
||
;
|
||
|
||
DEBUG > 1 and print " <$a> cmp <$b> is $rv\n";
|
||
$rv;
|
||
}
|
||
}
|
||
EONCMP
|
||
|
||
# clean up:
|
||
undef $guts;
|
||
undef &maker;
|
||
|
||
#-----------------------------------------------------------------------------
|
||
1;
|
||
|
||
############### END OF MAIN SOURCE ###########################################
|
||
__END__
|
||
|
||
=head1 NAME
|
||
|
||
Sort::Naturally -- sort lexically, but sort numeral parts numerically
|
||
|
||
=head1 SYNOPSIS
|
||
|
||
@them = nsort(qw(
|
||
foo12a foo12z foo13a foo 14 9x foo12 fooa foolio Foolio Foo12a
|
||
));
|
||
print join(' ', @them), "\n";
|
||
|
||
Prints:
|
||
|
||
9x 14 foo fooa foolio Foolio foo12 foo12a Foo12a foo12z foo13a
|
||
|
||
(Or "foo12a" + "Foo12a" and "foolio" + "Foolio" and might be
|
||
switched, depending on your locale.)
|
||
|
||
=head1 DESCRIPTION
|
||
|
||
This module exports two functions, C<nsort> and C<ncmp>; they are used
|
||
in implementing my idea of a "natural sorting" algorithm. Under natural
|
||
sorting, numeric substrings are compared numerically, and other
|
||
word-characters are compared lexically.
|
||
|
||
This is the way I define natural sorting:
|
||
|
||
=over
|
||
|
||
=item *
|
||
|
||
Non-numeric word-character substrings are sorted lexically,
|
||
case-insensitively: "Foo" comes between "fish" and "fowl".
|
||
|
||
=item *
|
||
|
||
Numeric substrings are sorted numerically:
|
||
"100" comes after "20", not before.
|
||
|
||
=item *
|
||
|
||
\W substrings (neither words-characters nor digits) are I<ignored>.
|
||
|
||
=item *
|
||
|
||
Our use of \w, \d, \D, and \W is locale-sensitive: Sort::Naturally
|
||
uses a C<use locale> statement.
|
||
|
||
=item *
|
||
|
||
When comparing two strings, where a numeric substring in one
|
||
place is I<not> up against a numeric substring in another,
|
||
the non-numeric always comes first. This is fudged by
|
||
reading pretending that the lack of a number substring has
|
||
the value -1, like so:
|
||
|
||
foo => "foo", -1
|
||
foobar => "foo", -1, "bar"
|
||
foo13 => "foo", 13,
|
||
foo13xyz => "foo", 13, "xyz"
|
||
|
||
That's so that "foo" will come before "foo13", which will come
|
||
before "foobar".
|
||
|
||
=item *
|
||
|
||
The start of a string is exceptional: leading non-\W (non-word,
|
||
non-digit)
|
||
components are are ignored, and numbers come I<before> letters.
|
||
|
||
=item *
|
||
|
||
I define "numeric substring" just as sequences matching m/\d+/ --
|
||
scientific notation, commas, decimals, etc., are not seen. If
|
||
your data has thousands separators in numbers
|
||
("20,000 Leagues Under The Sea" or "20.000 lieues sous les mers"),
|
||
consider stripping them before feeding them to C<nsort> or
|
||
C<ncmp>.
|
||
|
||
=back
|
||
|
||
=head2 The nsort function
|
||
|
||
This function takes a list of strings, and returns a copy of the list,
|
||
sorted.
|
||
|
||
This is what most people will want to use:
|
||
|
||
@stuff = nsort(...list...);
|
||
|
||
When nsort needs to compare non-numeric substrings, it
|
||
uses Perl's C<lc> function in scope of a <use locale>.
|
||
And when nsort needs to lowercase things, it uses Perl's
|
||
C<lc> function in scope of a <use locale>. If you want nsort
|
||
to use other functions instead, you can specify them in
|
||
an arrayref as the first argument to nsort:
|
||
|
||
@stuff = nsort( [
|
||
\&string_comparator, # optional
|
||
\&lowercaser_function # optional
|
||
],
|
||
...list...
|
||
);
|
||
|
||
If you want to specify a string comparator but no lowercaser,
|
||
then the options list is C<[\&comparator, '']> or
|
||
C<[\&comparator]>. If you want to specify no string comparator
|
||
but a lowercaser, then the options list is
|
||
C<['', \&lowercaser]>.
|
||
|
||
Any comparator you specify is called as
|
||
C<$comparator-E<gt>($left, $right)>,
|
||
and, like a normal Perl C<cmp> replacement, must return
|
||
-1, 0, or 1 depending on whether the left argument is stringwise
|
||
less than, equal to, or greater than the right argument.
|
||
|
||
Any lowercaser function you specify is called as
|
||
C<$lowercased = $lowercaser-E<gt>($original)>. The routine
|
||
must not modify its C<$_[0]>.
|
||
|
||
=head2 The ncmp function
|
||
|
||
Often, when sorting non-string values like this:
|
||
|
||
@objects_sorted = sort { $a->tag cmp $b->tag } @objects;
|
||
|
||
...or even in a Schwartzian transform, like this:
|
||
|
||
@strings =
|
||
map $_->[0]
|
||
sort { $a->[1] cmp $b->[1] }
|
||
map { [$_, make_a_sort_key_from($_) ]
|
||
@_
|
||
;
|
||
|
||
...you wight want something that replaces not C<sort>, but C<cmp>.
|
||
That's what Sort::Naturally's C<ncmp> function is for. Call it with
|
||
the syntax C<ncmp($left,$right)> instead of C<$left cmp $right>,
|
||
but otherwise it's a fine replacement:
|
||
|
||
@objects_sorted = sort { ncmp($a->tag,$b->tag) } @objects;
|
||
|
||
@strings =
|
||
map $_->[0]
|
||
sort { ncmp($a->[1], $b->[1]) }
|
||
map { [$_, make_a_sort_key_from($_) ]
|
||
@_
|
||
;
|
||
|
||
Just as with C<nsort> can take different a string-comparator
|
||
and/or lowercaser, you can do the same with C<ncmp>, by passing
|
||
an arrayref as the first argument:
|
||
|
||
ncmp( [
|
||
\&string_comparator, # optional
|
||
\&lowercaser_function # optional
|
||
],
|
||
$left, $right
|
||
)
|
||
|
||
You might get string comparators from L<Sort::ArbBiLex|Sort::ArbBiLex>.
|
||
|
||
=head1 NOTES
|
||
|
||
=over
|
||
|
||
=item *
|
||
|
||
This module is not a substitute for
|
||
L<Sort::Versions|Sort::Versions>! If
|
||
you just need proper version sorting, use I<that!>
|
||
|
||
=item *
|
||
|
||
If you need something that works I<sort of> like this module's
|
||
functions, but not quite the same, consider scouting thru this
|
||
module's source code, and adapting what you see. Besides
|
||
the functions that actually compile in this module, after the POD,
|
||
there's several alternate attempts of mine at natural sorting
|
||
routines, which are not compiled as part of the module, but which you
|
||
might find useful. They should all be I<working> implementations of
|
||
slightly different algorithms
|
||
(all of them based on Martin Pool's C<nsort>) which I eventually
|
||
discarded in favor of my algorithm. If you are having to
|
||
naturally-sort I<very large> data sets, and sorting is getting
|
||
ridiculously slow, you might consider trying one of those
|
||
discarded functions -- I have a feeling they might be faster on
|
||
large data sets. Benchmark them on your data and see. (Unless
|
||
you I<need> the speed, don't bother. Hint: substitute C<sort>
|
||
for C<nsort> in your code, and unless your program speeds up
|
||
drastically, it's not the sorting that's slowing things down.
|
||
But if it I<is> C<nsort> that's slowing things down, consider
|
||
just:
|
||
|
||
if(@set >= SOME_VERY_BIG_NUMBER) {
|
||
no locale; # vroom vroom
|
||
@sorted = sort(@set); # feh, good enough
|
||
} elsif(@set >= SOME_BIG_NUMBER) {
|
||
use locale;
|
||
@sorted = sort(@set); # feh, good enough
|
||
} else {
|
||
# but keep it pretty for normal cases
|
||
@sorted = nsort(@set);
|
||
}
|
||
|
||
=item *
|
||
|
||
If you do adapt the routines in this module, email me; I'd
|
||
just be interested in hearing about it.
|
||
|
||
=item *
|
||
|
||
Thanks to the EFNet #perl people for encouraging this module,
|
||
especially magister and a-mused.
|
||
|
||
=back
|
||
|
||
=head1 COPYRIGHT AND DISCLAIMER
|
||
|
||
Copyright 2001, Sean M. Burke C<sburke@cpan.org>, all rights
|
||
reserved. This program is free software; you can redistribute it
|
||
and/or modify it under the same terms as Perl itself.
|
||
|
||
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.
|
||
|
||
=head1 AUTHOR
|
||
|
||
Sean M. Burke C<sburke@cpan.org>
|
||
|
||
=cut
|
||
|
||
############ END OF DOCS ############
|
||
|
||
############################################################################
|
||
############################################################################
|
||
|
||
############ BEGIN OLD STUFF ############
|
||
|
||
# We can't have "use integer;", or else (5 <=> 5.1) comes out "0" !
|
||
|
||
#-----------------------------------------------------------------------------
|
||
sub nsort {
|
||
my($cmp, $lc);
|
||
return @_ if @_ < 2; # Just to be CLEVER.
|
||
|
||
my($x, $i); # scratch vars
|
||
|
||
# And now, the GREAT BIG Schwartzian transform:
|
||
|
||
map
|
||
$_->[0],
|
||
|
||
sort {
|
||
# Uses $i as the index variable, $x as the result.
|
||
$x = 0;
|
||
$i = 1;
|
||
DEBUG and print "\nComparing ", map("{$_}", @$a),
|
||
' : ', map("{$_}", @$b), , "...\n";
|
||
|
||
while($i < @$a and $i < @$b) {
|
||
DEBUG and print " comparing $i: {$a->[$i]} cmp {$b->[$i]} => ",
|
||
$a->[$i] cmp $b->[$i], "\n";
|
||
last if ($x = ($a->[$i] cmp $b->[$i])); # lexicographic
|
||
++$i;
|
||
|
||
DEBUG and print " comparing $i: {$a->[$i]} <=> {$b->[$i]} => ",
|
||
$a->[$i] <=> $b->[$i], "\n";
|
||
last if ($x = ($a->[$i] <=> $b->[$i])); # numeric
|
||
++$i;
|
||
}
|
||
|
||
DEBUG and print "{$a->[0]} : {$b->[0]} is ",
|
||
$x || (@$a <=> @$b) || 0
|
||
,"\n"
|
||
;
|
||
$x || (@$a <=> @$b) || ($a->[0] cmp $b->[0]);
|
||
# unless we found a result for $x in the while loop,
|
||
# use length as a tiebreaker, otherwise use cmp
|
||
# on the original string as a fallback tiebreaker.
|
||
}
|
||
|
||
map {
|
||
my @bit = ($x = defined($_) ? $_ : '');
|
||
|
||
if($x =~ m/^[+-]?(?=\d|\.\d)\d*(?:\.\d*)?(?:[Ee](?:[+-]?\d+))?\z/s) {
|
||
# It's entirely purely numeric, so treat it specially:
|
||
push @bit, '', $x;
|
||
} else {
|
||
# Consume the string.
|
||
while(length $x) {
|
||
push @bit, ($x =~ s/^(\D+)//s) ? lc($1) : '';
|
||
push @bit, ($x =~ s/^(\d+)//s) ? $1 : 0;
|
||
}
|
||
}
|
||
DEBUG and print "$bit[0] => ", map("{$_} ", @bit), "\n";
|
||
|
||
# End result: [original bit , (text, number), (text, number), ...]
|
||
# Minimally: [0-length original bit,]
|
||
# Examples:
|
||
# ['10' => '' , 10, ]
|
||
# ['fo900' => 'fo' , 900, ]
|
||
# ['foo10' => 'foo', 10, ]
|
||
# ['foo9.pl' => 'foo', 9, , '.pl', 0 ]
|
||
# ['foo32.pl' => 'foo', 32, , '.pl', 0 ]
|
||
# ['foo325.pl' => 'foo', 325, , '.pl', 0 ]
|
||
# Yes, always an ODD number of elements.
|
||
|
||
\@bit;
|
||
}
|
||
@_;
|
||
}
|
||
|
||
#-----------------------------------------------------------------------------
|
||
# Same as before, except without the pure-number trap.
|
||
|
||
sub nsorts {
|
||
return @_ if @_ < 2; # Just to be CLEVER.
|
||
|
||
my($x, $i); # scratch vars
|
||
|
||
# And now, the GREAT BIG Schwartzian transform:
|
||
|
||
map
|
||
$_->[0],
|
||
|
||
sort {
|
||
# Uses $i as the index variable, $x as the result.
|
||
$x = 0;
|
||
$i = 1;
|
||
DEBUG and print "\nComparing ", map("{$_}", @$a),
|
||
' : ', map("{$_}", @$b), , "...\n";
|
||
|
||
while($i < @$a and $i < @$b) {
|
||
DEBUG and print " comparing $i: {$a->[$i]} cmp {$b->[$i]} => ",
|
||
$a->[$i] cmp $b->[$i], "\n";
|
||
last if ($x = ($a->[$i] cmp $b->[$i])); # lexicographic
|
||
++$i;
|
||
|
||
DEBUG and print " comparing $i: {$a->[$i]} <=> {$b->[$i]} => ",
|
||
$a->[$i] <=> $b->[$i], "\n";
|
||
last if ($x = ($a->[$i] <=> $b->[$i])); # numeric
|
||
++$i;
|
||
}
|
||
|
||
DEBUG and print "{$a->[0]} : {$b->[0]} is ",
|
||
$x || (@$a <=> @$b) || 0
|
||
,"\n"
|
||
;
|
||
$x || (@$a <=> @$b) || ($a->[0] cmp $b->[0]);
|
||
# unless we found a result for $x in the while loop,
|
||
# use length as a tiebreaker, otherwise use cmp
|
||
# on the original string as a fallback tiebreaker.
|
||
}
|
||
|
||
map {
|
||
my @bit = ($x = defined($_) ? $_ : '');
|
||
|
||
while(length $x) {
|
||
push @bit, ($x =~ s/^(\D+)//s) ? lc($1) : '';
|
||
push @bit, ($x =~ s/^(\d+)//s) ? $1 : 0;
|
||
}
|
||
DEBUG and print "$bit[0] => ", map("{$_} ", @bit), "\n";
|
||
|
||
# End result: [original bit , (text, number), (text, number), ...]
|
||
# Minimally: [0-length original bit,]
|
||
# Examples:
|
||
# ['10' => '' , 10, ]
|
||
# ['fo900' => 'fo' , 900, ]
|
||
# ['foo10' => 'foo', 10, ]
|
||
# ['foo9.pl' => 'foo', 9, , '.pl', 0 ]
|
||
# ['foo32.pl' => 'foo', 32, , '.pl', 0 ]
|
||
# ['foo325.pl' => 'foo', 325, , '.pl', 0 ]
|
||
# Yes, always an ODD number of elements.
|
||
|
||
\@bit;
|
||
}
|
||
@_;
|
||
}
|
||
|
||
#-----------------------------------------------------------------------------
|
||
# Same as before, except for the sort-key-making
|
||
|
||
sub nsort0 {
|
||
return @_ if @_ < 2; # Just to be CLEVER.
|
||
|
||
my($x, $i); # scratch vars
|
||
|
||
# And now, the GREAT BIG Schwartzian transform:
|
||
|
||
map
|
||
$_->[0],
|
||
|
||
sort {
|
||
# Uses $i as the index variable, $x as the result.
|
||
$x = 0;
|
||
$i = 1;
|
||
DEBUG and print "\nComparing ", map("{$_}", @$a),
|
||
' : ', map("{$_}", @$b), , "...\n";
|
||
|
||
while($i < @$a and $i < @$b) {
|
||
DEBUG and print " comparing $i: {$a->[$i]} cmp {$b->[$i]} => ",
|
||
$a->[$i] cmp $b->[$i], "\n";
|
||
last if ($x = ($a->[$i] cmp $b->[$i])); # lexicographic
|
||
++$i;
|
||
|
||
DEBUG and print " comparing $i: {$a->[$i]} <=> {$b->[$i]} => ",
|
||
$a->[$i] <=> $b->[$i], "\n";
|
||
last if ($x = ($a->[$i] <=> $b->[$i])); # numeric
|
||
++$i;
|
||
}
|
||
|
||
DEBUG and print "{$a->[0]} : {$b->[0]} is ",
|
||
$x || (@$a <=> @$b) || 0
|
||
,"\n"
|
||
;
|
||
$x || (@$a <=> @$b) || ($a->[0] cmp $b->[0]);
|
||
# unless we found a result for $x in the while loop,
|
||
# use length as a tiebreaker, otherwise use cmp
|
||
# on the original string as a fallback tiebreaker.
|
||
}
|
||
|
||
map {
|
||
my @bit = ($x = defined($_) ? $_ : '');
|
||
|
||
if($x =~ m/^[+-]?(?=\d|\.\d)\d*(?:\.\d*)?(?:[Ee](?:[+-]?\d+))?\z/s) {
|
||
# It's entirely purely numeric, so treat it specially:
|
||
push @bit, '', $x;
|
||
} else {
|
||
# Consume the string.
|
||
while(length $x) {
|
||
push @bit, ($x =~ s/^(\D+)//s) ? lc($1) : '';
|
||
# Secret sauce:
|
||
if($x =~ s/^(\d+)//s) {
|
||
if(substr($1,0,1) eq '0' and $1 != 0) {
|
||
push @bit, $1 / (10 ** length($1));
|
||
} else {
|
||
push @bit, $1;
|
||
}
|
||
} else {
|
||
push @bit, 0;
|
||
}
|
||
}
|
||
}
|
||
DEBUG and print "$bit[0] => ", map("{$_} ", @bit), "\n";
|
||
|
||
\@bit;
|
||
}
|
||
@_;
|
||
}
|
||
|
||
#-----------------------------------------------------------------------------
|
||
# Like nsort0, but WITHOUT pure number handling, and WITH special treatment
|
||
# of pulling off extensions and version numbers.
|
||
|
||
sub nsortf {
|
||
return @_ if @_ < 2; # Just to be CLEVER.
|
||
|
||
my($x, $i); # scratch vars
|
||
|
||
# And now, the GREAT BIG Schwartzian transform:
|
||
|
||
map
|
||
$_->[0],
|
||
|
||
sort {
|
||
# Uses $i as the index variable, $x as the result.
|
||
$x = 0;
|
||
$i = 3;
|
||
DEBUG and print "\nComparing ", map("{$_}", @$a),
|
||
' : ', map("{$_}", @$b), , "...\n";
|
||
|
||
while($i < @$a and $i < @$b) {
|
||
DEBUG and print " comparing $i: {$a->[$i]} cmp {$b->[$i]} => ",
|
||
$a->[$i] cmp $b->[$i], "\n";
|
||
last if ($x = ($a->[$i] cmp $b->[$i])); # lexicographic
|
||
++$i;
|
||
|
||
DEBUG and print " comparing $i: {$a->[$i]} <=> {$b->[$i]} => ",
|
||
$a->[$i] <=> $b->[$i], "\n";
|
||
last if ($x = ($a->[$i] <=> $b->[$i])); # numeric
|
||
++$i;
|
||
}
|
||
|
||
DEBUG and print "{$a->[0]} : {$b->[0]} is ",
|
||
$x || (@$a <=> @$b) || 0
|
||
,"\n"
|
||
;
|
||
$x || (@$a <=> @$b ) || ($a->[1] cmp $b->[1])
|
||
|| ($a->[2] <=> $b->[2]) || ($a->[0] cmp $b->[0]);
|
||
# unless we found a result for $x in the while loop,
|
||
# use length as a tiebreaker, otherwise use the
|
||
# lc'd extension, otherwise the verison, otherwise use
|
||
# the original string as a fallback tiebreaker.
|
||
}
|
||
|
||
map {
|
||
my @bit = ( ($x = defined($_) ? $_ : ''), '',0 );
|
||
|
||
{
|
||
# Consume the string.
|
||
|
||
# First, pull off any VAX-style version
|
||
$bit[2] = $1 if $x =~ s/;(\d+)$//;
|
||
|
||
# Then pull off any apparent extension
|
||
if( $x !~ m/^\.+$/s and # don't mangle ".", "..", or "..."
|
||
$x =~ s/(\.[^\.\;]*)$//sg
|
||
# We could try to avoid catching all-digit extensions,
|
||
# but I think that's getting /too/ clever.
|
||
) {
|
||
$i = $1;
|
||
if($x =~ m<[^\\\://]$>s) {
|
||
# We didn't take the whole basename.
|
||
$bit[1] = lc $i;
|
||
DEBUG and print "Consuming extension \"$1\"\n";
|
||
} else {
|
||
# We DID take the whole basename. Fix it.
|
||
$x = $1; # Repair it.
|
||
}
|
||
}
|
||
|
||
push @bit, '', -1 if $x =~ m/^\./s;
|
||
# A hack to make .-initial filenames sort first, regardless of locale.
|
||
# And -1 is always a sort-firster, since in the code below, there's
|
||
# no allowance for filenames containing negative numbers: -1.dat
|
||
# will be read as string '-' followed by number 1.
|
||
|
||
while(length $x) {
|
||
push @bit, ($x =~ s/^(\D+)//s) ? lc($1) : '';
|
||
# Secret sauce:
|
||
if($x =~ s/^(\d+)//s) {
|
||
if(substr($1,0,1) eq '0' and $1 != 0) {
|
||
push @bit, $1 / (10 ** length($1));
|
||
} else {
|
||
push @bit, $1;
|
||
}
|
||
} else {
|
||
push @bit, 0;
|
||
}
|
||
}
|
||
}
|
||
|
||
DEBUG and print "$bit[0] => ", map("{$_} ", @bit), "\n";
|
||
|
||
\@bit;
|
||
}
|
||
@_;
|
||
}
|
||
|
||
# yowza yowza yowza.
|
||
|
Auch abrufbar als: Unified diff
Modul Sort::Naturally zum Fallback hinzugefügt