181 lines
3.7 KiB
Perl
Executable file
181 lines
3.7 KiB
Perl
Executable file
#!/usr/bin/perl
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=head1 NAME
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upsidedown - flip input upside down.
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=head1 SYNOPSIS
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B<upsidedown> inputtext
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B<cat> <file with input text> | B<upsidedown>
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=head1 DESCRIPTION
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B<upsidedown> flips input text upside down.
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=head1 EXAMPLE: Flip 'Ole Tange' upside down
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upsidedown "'Ole Tange'"
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=head1 BUGS
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Upsidedown is not completely reversible.
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=head1 REPORTING BUGS
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Report bugs to <bug-parallel@gnu.org>.
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=head1 AUTHOR
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Copyright (C) 2012 Ole Tange, http://ole.tange.dk and Free
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Software Foundation, Inc.
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=head1 LICENSE
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Copyright (C) 2012 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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at your option any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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=head2 Documentation license I
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Permission is granted to copy, distribute and/or modify this documentation
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with no
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Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
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Texts. A copy of the license is included in the file fdl.txt.
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=head2 Documentation license II
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You are free:
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=over 9
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=item B<to Share>
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to copy, distribute and transmit the work
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=item B<to Remix>
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to adapt the work
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=back
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Under the following conditions:
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=over 9
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=item B<Attribution>
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You must attribute the work in the manner specified by the author or
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licensor (but not in any way that suggests that they endorse you or
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your use of the work).
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=item B<Share Alike>
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If you alter, transform, or build upon this work, you may distribute
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the resulting work only under the same, similar or a compatible
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license.
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=back
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With the understanding that:
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=over 9
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=item B<Waiver>
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Any of the above conditions can be waived if you get permission from
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the copyright holder.
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=item B<Public Domain>
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Where the work or any of its elements is in the public domain under
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applicable law, that status is in no way affected by the license.
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=item B<Other Rights>
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In no way are any of the following rights affected by the license:
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=over 2
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=item *
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Your fair dealing or fair use rights, or other applicable
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copyright exceptions and limitations;
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=item *
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The author's moral rights;
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=item *
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Rights other persons may have either in the work itself or in
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how the work is used, such as publicity or privacy rights.
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=back
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=back
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=over 9
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=item B<Notice>
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For any reuse or distribution, you must make clear to others the
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license terms of this work.
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=back
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A copy of the full license is included in the file as cc-by-sa.txt.
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=head1 DEPENDENCIES
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B<upsidedown> uses Perl, and the Perl module utf8.
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=head1 SEE ALSO
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B<tr>(1)
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=cut
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use utf8;
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my $down = ' @{}'.
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q{ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.,';0123456789?!"&()[]/\_‾};
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my @up = (" ",qw(@ } {),
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qw{∀ q Ɔ p Ǝ Ⅎ ⅁ H I ſ ʞ ⅂ W N O Ԁ Ό ᴚ S ⊥ ∩ Ʌ M X ⅄ Z ɐ q ɔ p ǝ ɟ 6 ɥ ı ſ ʞ l},
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qw{ɯ u o d b ɹ s ʇ n ʌ ʍ x ʎ z ˙ ' , ؛ 0 Ɩ 2 Ɛ ᔭ 5 9 Ɫ 8 6 ¿ ¡ „ ⅋ ) ( ] [ / \ ‾ _});
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my %up;
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my @down = split//,$down;
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@up{@up} = @down;
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@up{@down} = @up;
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binmode STDOUT, ':utf8';
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binmode STDIN, ':utf8';
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if(@ARGV) {
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print @up{reverse split//,"@ARGV"},"\n";
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} else {
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while(<>) {
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print @up{reverse split//,$_},"\n";
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}
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}
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