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package Demeter::UI::Wx::SpecialCharacters;
use strict;
#use Encode;
use base qw( Exporter );
our @EXPORT_OK = qw(emph
$MU $CHI $EPSILON $DELTA $SIGMA $SIGSQR $PHI $PI $S02 $E0
$ALPHA $BETA $GAMMA $ETA
$COPYRIGHT $LAQUO $RAQUO $MDASH
$ONE $TWO $THR
$ARING $OUMLAUT $MACRON $APPROX $PLUSMN $PLUSMN2
);
our %EXPORT_TAGS = (all => [qw(emph
$MU $CHI $EPSILON $DELTA $SIGMA $SIGSQR $PHI $PI $S02 $E0
$ALPHA $BETA $GAMMA
$COPYRIGHT $LAQUO $RAQUO $MDASH $ARING $OUMLAUT
$ONE $TWO $THR $MACRON $APPROX $PLUSMN $PLUSMN2)],
super => [qw($ONE $TWO $THR $MACRON)],
greek => [qw($MU $CHI $EPSILON $DELTA $SIGMA $SIGSQR $PHI $PI $S02 $E0
$ALPHA $BETA $GAMMA $ETA)],
);
my $is_windows = (($^O eq 'MSWin32') or ($^O eq 'cygwin'));
## -------- greek characters
our $MU = chr(0x03BC); #'μ';
our $CHI = chr(0x03C7); #967); #"\xCF\x87"; #'χ';
our $EPSILON = chr(949); #"\xCE\xB5"; #'ε';
our $DELTA = chr(916); #"\xCE\x94"; #'Δ';
our $SIGMA = chr(963); #"\xCF\x83"; #'σ';
our $SIGSQR = chr(963).chr(178); #"\xCF\x83"."\xC2\xB2"; #'σ²';
our $PHI = chr(966); #"\xCF\x86"; #'φ';
our $PI = chr(960);
our $S02 = ($is_windows) ? 'S0'.chr(178) : 'S'.chr(8320).chr(178);
our $E0 = ($is_windows) ? 'E0' : 'E'.chr(8320);
our $ALPHA = chr(0x03B1);
our $BETA = chr(0x03B2);
our $GAMMA = chr(0x03B3);
our $ETA = chr(0x03B7);
## -------- superscripts
our $ONE = chr(185);
our $TWO = chr(178);
our $THR = chr(179);
## -------- other special characters
our $COPYRIGHT = chr(169); #"\xC2\xA9"; #'©';
our $LAQUO = chr(171); #"\xC2\xAB"; #'«';
our $RAQUO = chr(187); #"\xC2\xBB"; #'»';
our $MDASH = chr(8212); #"\xE2\x80\x94"; #'—';
our $ARING = chr(197); # 'Å'
our $OUMLAUT = chr(246); # 'ö'
our $MACRON = chr(175); # ''
our $APPROX = chr(2248); # ''
our $PLUSMN = chr(177); # q{+/-}; # q{±}; #chr(177); #
our $PLUSMN2 = q{+/-}; # q{±}; #chr(177); #
sub emph {
my ($string) = @_;
my ($left, $right) = ('"', '"');
#my ($left, $right) = ($LAQUO, $RAQUO);
return $left . $string . $right;
};
1;
=head1 NAME
Demeter::UI::Wx::SpecialCharacters - A library of special characters for use in Wx labels
=head1 VERSION
This documentation refers to Demeter version 0.9.26.
=head1 SYNOPSIS
This provides a library of special characters for use in labels on Wx
widgets used in Artemis and Athena.
use Demeter::UI::Wx::SpecialCharacters qw(:all);
my $button = Wx::Button($parent, -1, "Plot $CHI(k)");
=head1 DESCRIPTION
This collects all the various special characters needed in Artemis and
other Wx-based GUIs into one convenient location. Please note that
this exports B<variables> into your module's namespace. This is a
against good practice, but is a huge convenience and I am telling you
about it!
The one exported function is C<emph>, which encloses a string in some
kind of quotation marks.
The greek letters exported are
=over 4
=item C<$MU>
lower case mu
=item C<$CHI>
lower case chi
=item C<$EPSILON>
lower case epsilon
=item C<$DELTA>
upper case delta
=item C<$SIGMA>
lower case sigma
=item C<$SIGSQR>
lower case sigma followed by a proper superscripted 2
=item C<$PHI>
lower case phi
=item C<$ETA>
lower case eta
=back
The superscript charaters exported are
=over 4
=item C<$TWO>
Superscript 2
=item C<$THR>
Superscript 3
=back
The other characters exported are
=over 4
=item C<$COPYRIGHT>
copyright symbol
=item C<$LABELS>
left guillemet
=item C<$RAQUO>
right guillemet
=back
The sets exported are
=over 4
=item C<:all>
As the name implies, all defined characters plus the C<emph> function
=item C<:greek>
Just the greek letters
=item C<:super>
Just the superscript characters
=back
See L<http://en.wikipedia.org/wiki/List_of_Unicode_characters> for the
character codes.
To convert a hex number in decimal:
perl -e 'printf "%d\n", 0x00BB'
=head1 BUGS AND LIMITATIONS
Please report problems to the Ifeffit Mailing List
(L<http://cars9.uchicago.edu/mailman/listinfo/ifeffit/>)
Patches are welcome.
=head1 AUTHOR
Bruce Ravel (L<http://bruceravel.github.io/home>)
L<http://bruceravel.github.io/demeter/>
=head1 LICENCE AND COPYRIGHT
Copyright (c) 2006-2019 Bruce Ravel (L<http://bruceravel.github.io/home>). All rights reserved.
This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself. See L<perlgpl>.
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.
=cut
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