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source of perl for linux application,

Unicode/Collate version 0.52
===============================

NAME

  Unicode::Collate - Unicode Collation Algorithm

SYNOPSIS

  use Unicode::Collate;

  #construct
  $Collator = Unicode::Collate->new(%tailoring);

  #sort
  @sorted = $Collator->sort(@not_sorted);

  #compare
  $result = $Collator->cmp($a, $b); # returns 1, 0, or -1.
  $result = $Collator->eq($a, $b);  # returns true/false
    (similarly ->ne, ->lt, ->le, ->gt, ->ge)

INSTALL

Perl 5.6.1 or later is required.
Perl 5.8.1 or later is recommended.

Though this module can be used without any C<table> file,
to use this module easily, it is recommended to install a table file
in the UCA format, by copying it under the directory
<a place in @INC>/Unicode/Collate.

You can install such a table file by adding it
to "Collate" directory (where "keys.txt" is placed) in this distribution
before executing Makefile.PL.

The most preferable one is "The Default Unicode Collation Element Table"
(aka DUCET), available from the Unicode Consortium's website:

   http://www.unicode.org/Public/UCA/

   http://www.unicode.org/Public/UCA/latest/allkeys.txt (latest version)

If DUCET is not installed, it is recommended to copy the file
from http://www.unicode.org/Public/UCA/latest/allkeys.txt
to <a place in @INC>/Unicode/Collate/allkeys.txt
manually.

Though this distribution contains a subset of allkeys.txt, named "keys.txt",
this one is intended only for doing a test of this module
and practically useless for any other purpose.

To install this module type the following:

   perl Makefile.PL
   make
   make test
   make install

(!! XSUB for Unicode::Collate is an EXPERIMENTAL support !!)
If you have a C compiler and want to use XSUB edition,
type the following (!! "enableXS" must run before "Makefile.PL" !!):

   perl enableXS
   perl Makefile.PL
   make
   make test
   make install

If you decide to install pure Perl (i.e. non-XS) edition after trying
to build XSUB, type the following:

   make clean
   perl disableXS
   perl Makefile.PL
   make
   make test
   make install

DEPENDENCIES

  The conformant collation requires Unicode::Normalize (v 0.10 or later)
  although Unicode::Collate can be used without Unicode::Normalize.

AUTHOR, COPYRIGHT AND LICENSE

The Unicode::Collate module for perl was written by SADAHIRO Tomoyuki,
<[e-mail]>. This module is Copyright(C) 2001-2005,
SADAHIRO Tomoyuki. Japan. All rights reserved.

This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.

The file Unicode/Collate/allkeys.txt was copied directly
from http://www.unicode.org/Public/UCA/4.1.0/allkeys.txt
This file is Copyright (c) 1991-2005 Unicode, Inc. All rights reserved.
Distributed under the Terms of Use in http://www.unicode.org/copyright.html