File Coverage

blib/lib/Encode/BetaCode.pm

Criterion	Covered	Total	%
statement	580	584	99.3
branch	10	14	71.4
condition	4	6	66.6
subroutine	9	9	100.0
pod	2	2	100.0
total	605	615	98.3

package Encode::BetaCode;

use 5.006;
use strict;
use warnings;

require Exporter;

use base qw(Exporter);
use Unicode::Normalize;

our %EXPORT_TAGS = (
    'all' => [
        qw(
          beta_decode
          beta_encode
          )
    ],
);

our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );

=head1 NAME

Encode::BetaCode - Perl module for converting to and from Beta Code

=head1 VERSION

Version 0.11

=encoding utf8

=cut

our $VERSION = '0.11';

=head1 SYNOPSIS

    use Encode::BetaCode qw(beta_decode beta_encode);

    my $unicode_text = beta_decode($language, $text);

    my $betacode_text = beta_encode($language, $style, $text);

=head1 DESCRIPTION

B provides functions that convert Beta Code strings
to Unicode and reverse. No functions are exported by default.

"use Encode::BetaCode qw(:all)" exports all of them.

=head1 FUNCTIONS

=over

=item B LANGUAGE, STRING

Converts strings from Beta Code to Unicode.

=over

=item Supported languages (so far):

-> C<'greek'>

-> C<'greek_punct'> (with punctuation conversions)

=back

=back

=cut

sub beta_decode
{
    my ( $language, $input ) = @_;

    if ( $language eq 'greek' || $language eq 'greek_punct' )
    {

        #Uppercase accents and diacritics.#
        $input =~ s/[*]a&/Ᾱ/gi;
        $input =~ s/[*]a'/Ᾰ/gi;
        $input =~ s/[*][)]\/a[|]/ᾌ/gi;
        $input =~ s/[*][(]\/a[|]/ᾍ/gi;
        $input =~ s/[*][)]=a[|]/ᾎ/gi;
        $input =~ s/[*][(]=a[|]/ᾏ/gi;
        $input =~ s/[*][(]\\a/Ἃ/gi;
        $input =~ s/[*][)]\/a/Ἄ/gi;
        $input =~ s/[*][(]\/a/Ἅ/gi;
        $input =~ s/[*][)]=a/Ἆ/gi;
        $input =~ s/[*][(]=a/Ἇ/gi;
        $input =~ s/[*][)]a[|]/ᾈ/gi;
        $input =~ s/[*][(]a[|]/ᾉ/gi;
        $input =~ s/[*][)]a/Ἀ/gi;
        $input =~ s/[*][(]a/Ἁ/gi;
        $input =~ s/[*]\\a/Ὰ/gi;
        $input =~ s/[*]\/a/Ά/gi;
        $input =~ s/[*]a[|]/ᾼ/gi;
        $input =~ s/[*][)]\\a/Ἂ/g;
        $input =~ s/[*][)]\\e/Ἒ/gi;
        $input =~ s/[*][(]\\e/Ἓ/gi;
        $input =~ s/[*][)]\/e/Ἔ/gi;
        $input =~ s/[*][(]\/e/Ἕ/gi;
        $input =~ s/[*][)]e/Ἐ/gi;
        $input =~ s/[*][(]e/Ἑ/gi;
        $input =~ s/[*]\\e/Ὲ/gi;
        $input =~ s/[*]\/e/Έ/gi;
        $input =~ s/[*][)]\/h[|]/ᾜ/gi;
        $input =~ s/[*][(]\/h[|]/ᾝ/gi;
        $input =~ s/[*][)]=h[|]/ᾞ/gi;
        $input =~ s/[*][(]=h[|]/ᾟ/gi;
        $input =~ s/[*][)]\\h/Ἢ/gi;
        $input =~ s/[*][(]\\h/Ἣ/gi;
        $input =~ s/[*][)]\/h/Ἤ/gi;
        $input =~ s/[*][(]\/h/Ἥ/gi;
        $input =~ s/[*][)]=h/Ἦ/gi;
        $input =~ s/[*][(]=h/Ἧ/gi;
        $input =~ s/[*][)]h[|]/ᾘ/gi;
        $input =~ s/[*][(]h[|]/ᾙ/gi;
        $input =~ s/[*][)]h/Ἠ/gi;
        $input =~ s/[*][(]h/Ἡ/gi;
        $input =~ s/[*]\\h/Ὴ/gi;
        $input =~ s/[*]\/h/Ή/gi;
        $input =~ s/[*]h[|]/ῌ/gi;
        $input =~ s/[*]i&/Ῑ/gi;
        $input =~ s/[*]i'/Ῐ/gi;
        $input =~ s/[*][+]i/Ϊ/gi;
        $input =~ s/[*][)]\\i/Ἲ/gi;
        $input =~ s/[*][(]\\i/Ἳ/gi;
        $input =~ s/[*][)]\/i/Ἴ/gi;
        $input =~ s/[*][(]\/i/Ἵ/gi;
        $input =~ s/[*][)]=i/Ἶ/gi;
        $input =~ s/[*][(]=i/Ἷ/gi;
        $input =~ s/[*][)]i/Ἰ/gi;
        $input =~ s/[*][(]i/Ἱ/gi;
        $input =~ s/[*]\\i/Ὶ/gi;
        $input =~ s/[*]\/i/Ί/gi;
        $input =~ s/[*][)]\\o/Ὂ/gi;
        $input =~ s/[*][(]\\o/Ὃ/gi;
        $input =~ s/[*][)]\/o/Ὄ/gi;
        $input =~ s/[*][(]\/o/Ὅ/gi;
        $input =~ s/[*][)]=o/Ὄ/gi;
        $input =~ s/[*][(]=o/Ὅ/gi;
        $input =~ s/[*][)]o/Ὀ/gi;
        $input =~ s/[*][(]o/Ὁ/gi;
        $input =~ s/[*]\\o/Ὸ/gi;
        $input =~ s/[*]\/o/Ό/gi;
        $input =~ s/[*][)]r/Ρ/gi;
        $input =~ s/[*][(]r/Ῥ/gi;
        $input =~ s/[*]u&/Ῡ/gi;
        $input =~ s/[*]u'/Ῠ/gi;
        $input =~ s/[*][+]u/Ϋ/gi;
        $input =~ s/[*][(]\\u/Ὓ/gi;
        $input =~ s/[*][(]\/u/Ὕ/gi;
        $input =~ s/[*][(]=u/Ὗ/gi;
        $input =~ s/[*][(]u/Ὑ/gi;
        $input =~ s/[*]\\u/Ὺ/gi;
        $input =~ s/[*]\/u/Ύ/gi;
        $input =~ s/[*][)]\/w[|]/ᾬ/gi;
        $input =~ s/[*][(]\/w[|]/ᾭ/gi;
        $input =~ s/[*][)]=w[|]/ᾮ/gi;
        $input =~ s/[*][(]=w[|]/ᾯ/gi;
        $input =~ s/[*][)]\\w/Ὢ/gi;
        $input =~ s/[*][(]\\w/Ὣ/gi;
        $input =~ s/[*][)]\/w/Ὤ/gi;
        $input =~ s/[*][(]\/w/Ὥ/gi;
        $input =~ s/[*][)]=w/Ὦ/gi;
        $input =~ s/[*][(]=w/Ὧ/gi;
        $input =~ s/[*][)]w[|]/ᾨ/gi;
        $input =~ s/[*][(]w[|]/ᾩ/gi;
        $input =~ s/[*][)]w/Ὠ/gi;
        $input =~ s/[*][(]w/Ὡ/gi;
        $input =~ s/[*]\\w/Ὼ/gi;
        $input =~ s/[*]\/w/Ώ/gi;
        $input =~ s/[*]w[|]/ῼ/gi;

        #Lowercase accents and diacritics.#
        $input =~ s/a&/ᾱ/gi;
        $input =~ s/a'/ᾰ/gi;
        $input =~ s/a[)]\/[|]/ᾄ/gi;
        $input =~ s/a[(]\/[|]/ᾅ/gi;
        $input =~ s/a[)]=[|]/ᾆ/gi;
        $input =~ s/a[(]=[|]/ᾇ/gi;
        $input =~ s/a[)][|]/ᾀ/gi;
        $input =~ s/a[(][|]/ᾁ/gi;
        $input =~ s/a\/[|]/ᾴ/gi;
        $input =~ s/a=[|]/ᾷ/gi;
        $input =~ s/a[)]\\/ἂ/gi;
        $input =~ s/a[(]\\/ἃ/gi;
        $input =~ s/a[)]\//ἄ/gi;
        $input =~ s/a[(]\//ἅ/gi;
        $input =~ s/a[)]=/ἆ/gi;
        $input =~ s/a[(]=/ἇ/gi;
        $input =~ s/a[)]/ἀ/gi;
        $input =~ s/a[(]/ἁ/gi;
        $input =~ s/a\\/ὰ/gi;
        $input =~ s/a\//ά/gi;
        $input =~ s/a=/ᾶ/gi;
        $input =~ s/a[|]/ᾳ/gi;
        $input =~ s/e[)]\\/ἒ/gi;
        $input =~ s/e[(]\\/ἓ/gi;
        $input =~ s/e[)]\//ἔ/gi;
        $input =~ s/e[(]\//ἕ/gi;
        $input =~ s/e[)]/ἐ/gi;
        $input =~ s/e[(]/ἑ/gi;
        $input =~ s/e\\/ὲ/gi;
        $input =~ s/e\//έ/gi;
        $input =~ s/h[)]\/[|]/ᾔ/gi;
        $input =~ s/h[(]\/[|]/ᾕ/gi;
        $input =~ s/h[)]=[|]/ᾖ/gi;
        $input =~ s/h[(]=[|]/ᾗ/gi;
        $input =~ s/h[)][|]/ᾐ/gi;
        $input =~ s/h[(][|]/ᾑ/gi;
        $input =~ s/h\/[|]/ῄ/gi;
        $input =~ s/h=[|]/ῇ/gi;
        $input =~ s/h[)]\\/ἢ/gi;
        $input =~ s/h[(]\\/ἣ/gi;
        $input =~ s/h[)]\//ἤ/gi;
        $input =~ s/h[(]\//ἥ/gi;
        $input =~ s/h[)]=/ἦ/gi;
        $input =~ s/h[(]=/ἧ/gi;
        $input =~ s/h[)]/ἠ/gi;
        $input =~ s/h[(]/ἡ/gi;
        $input =~ s/h\\/ὴ/gi;
        $input =~ s/h\//ή/gi;
        $input =~ s/h=/ῆ/gi;
        $input =~ s/h[|]/ῃ/gi;
        $input =~ s/i&/ῑ/gi;
        $input =~ s/i'/ῐ/gi;
        $input =~ s/i[+]\\/ῒ/gi;
        $input =~ s/i\\[+]/ῒ/gi;
        $input =~ s/i[+]\//ΐ/gi;
        $input =~ s/i\/[+]/ΐ/gi;
        $input =~ s/i[+]=/ῗ/gi;
        $input =~ s/i=[+]/ῗ/gi;
        $input =~ s/i[+]/ϊ/gi;
        $input =~ s/i[)]\\/ἲ/gi;
        $input =~ s/i[(]\\/ἳ/gi;
        $input =~ s/i[)]\//ἴ/gi;
        $input =~ s/i[(]\//ἵ/gi;
        $input =~ s/i[)]=/ἶ/gi;
        $input =~ s/i[(]=/ἷ/gi;
        $input =~ s/i[)]/ἰ/gi;
        $input =~ s/i[(]/ἱ/gi;
        $input =~ s/i\\/ὶ/gi;
        $input =~ s/i\//ί/gi;
        $input =~ s/i=/ῖ/gi;
        $input =~ s/o[)]\\/ὂ/gi;
        $input =~ s/o[(]\\/ὃ/gi;
        $input =~ s/o[)]\//ὄ/gi;
        $input =~ s/o[(]\//ὅ/gi;
        $input =~ s/o[)]/ὀ/gi;
        $input =~ s/o[(]/ὁ/gi;
        $input =~ s/o\\/ὸ/gi;
        $input =~ s/o\//ό/gi;
        $input =~ s/r[)]/ῤ/gi;
        $input =~ s/r[(]/ῥ/gi;
        $input =~ s/u&/ῡ/gi;
        $input =~ s/u'/ῠ/gi;
        $input =~ s/u[+]\\/ῢ/gi;
        $input =~ s/u\\[+]/ῢ/gi;
        $input =~ s/u[+]\//ΰ/gi;
        $input =~ s/u\/[+]/ΰ/gi;
        $input =~ s/u[+]=/ῧ/gi;
        $input =~ s/u=[+]/ῧ/gi;
        $input =~ s/u[+]/ϋ/gi;
        $input =~ s/u[)]\\/ὒ/gi;
        $input =~ s/u[(]\\/ὓ/gi;
        $input =~ s/u[)]\//ὔ/gi;
        $input =~ s/u[(]\//ὕ/gi;
        $input =~ s/u[)]=/ὖ/gi;
        $input =~ s/u[(]=/ὗ/gi;
        $input =~ s/u[)]/ὐ/gi;
        $input =~ s/u[(]/ὑ/gi;
        $input =~ s/u\\/ὺ/gi;
        $input =~ s/u\//ύ/gi;
        $input =~ s/u=/ῦ/gi;
        $input =~ s/w[)]\/[|]/ᾤ/gi;
        $input =~ s/w[(]\/[|]/ᾥ/gi;
        $input =~ s/w[)]=[|]/ᾦ/gi;
        $input =~ s/w[(]=[|]/ᾧ/gi;
        $input =~ s/w[)][|]/ᾠ/gi;
        $input =~ s/w[(][|]/ᾡ/gi;
        $input =~ s/w\/[|]/ῴ/gi;
        $input =~ s/w=[|]/ῷ/gi;
        $input =~ s/w[)]\\/ὢ/gi;
        $input =~ s/w[(]\\/ὣ/gi;
        $input =~ s/w[)]\//ὤ/gi;
        $input =~ s/w[(]\//ὥ/gi;
        $input =~ s/w[)]=/ὦ/gi;
        $input =~ s/w[(]=/ὧ/gi;
        $input =~ s/w[)]/ὠ/gi;
        $input =~ s/w[(]/ὡ/gi;
        $input =~ s/w\\/ὼ/gi;
        $input =~ s/w\//ώ/gi;
        $input =~ s/w=/ῶ/gi;
        $input =~ s/w[|]/ῳ/gi;

        #Plain uppercase letters.#
        $input =~ s/[*]a/Α/gi;
        $input =~ s/[*]b/Β/gi;
        $input =~ s/[*]g/Γ/gi;
        $input =~ s/[*]d/Δ/gi;
        $input =~ s/[*]e/Ε/gi;
        $input =~ s/[*]z/Ζ/gi;
        $input =~ s/[*]h/Η/gi;
        $input =~ s/[*]q/Θ/gi;
        $input =~ s/[*]i/Ι/gi;
        $input =~ s/[*]k/Κ/gi;
        $input =~ s/[*]l/Λ/gi;
        $input =~ s/[*]m/Μ/gi;
        $input =~ s/[*]n/Ν/gi;
        $input =~ s/[*]c/Ξ/gi;
        $input =~ s/[*]o/Ο/gi;
        $input =~ s/[*]p/Π/gi;
        $input =~ s/[*]r/Ρ/gi;
        $input =~ s/[*]s3/Ϲ/gi;
        $input =~ s/[*]s/Σ/gi;
        $input =~ s/[*]t/Τ/gi;
        $input =~ s/[*]u/Υ/gi;
        $input =~ s/[*]f/Φ/gi;
        $input =~ s/[*]x/Χ/gi;
        $input =~ s/[*]y/Ψ/gi;
        $input =~ s/[*]w/Ω/gi;
        $input =~ s/[*]v/Ϝ/gi;

        #Plain lowercase letters.#
        $input =~ s/a/α/gi;
        $input =~ s/b/β/gi;
        $input =~ s/g/γ/gi;
        $input =~ s/d/δ/gi;
        $input =~ s/e/ε/gi;
        $input =~ s/z/ζ/gi;
        $input =~ s/h/η/gi;
        $input =~ s/q/θ/gi;
        $input =~ s/i/ι/gi;
        $input =~ s/k/κ/gi;
        $input =~ s/l/λ/gi;
        $input =~ s/m/μ/gi;
        $input =~ s/n/ν/gi;
        $input =~ s/c/ξ/gi;
        $input =~ s/o/ο/gi;
        $input =~ s/p/π/gi;
        $input =~ s/r/ρ/gi;
        $input =~ s/s1/σ/gi;
        $input =~ s/s2/ς/gi;
        $input =~ s/s3/ϲ/gi;
        $input =~ s/s([,.;:])/ς$1/gi;
        $input =~ s/s(\s)/ς$1/gi;
        $input =~ s/s$/ς/gi;
        $input =~ s/s([a-zA-Z\/\\=[+]\-'])/σ$1/gi;
        $input =~ s/s([^a-zA-Z\/\\=[+]\-'])/ς$1/gi;
        $input =~ s/s/σ/gi;
        $input =~ s/t/τ/gi;
        $input =~ s/u/υ/gi;
        $input =~ s/f/φ/gi;
        $input =~ s/x/χ/gi;
        $input =~ s/y/ψ/gi;
        $input =~ s/w/ω/gi;
        $input =~ s/v/ϝ/gi;
    }
    else
    {
        warn 'Only "greek/greek_punct" is available for now.';
    }

    if ( $language eq 'greek_punct' )
    {

        #Punctuation.#
        $input =~ s/:/·/g;
        $input =~ s/_/—/g;
        $input =~ s/#/ʹ/g;

        # If ' has not been used for breve (˘), then
        # it is an apostrophe.
        $input =~ s/'/’/g;
    }

    return $input;
}

=over

=item  B LANGUAGE, STYLE, STRING

Converts strings from Unicode to Beta Code. It can also handle text with
 combined characters.

=over

=item Supported languages (so far):

-> C<'greek'>

-> C<'greek_punct'> (with punctuation conversions)

=item Supported styles (so far):

-> C<'TLG'>

-> C<'Perseus'>

=back

=back

=cut

sub beta_encode
{
    my ( $language, $style, $input ) = @_;

    # Decompose combined characters (if any).
    use utf8;
    unless ( utf8::is_utf8($input) )
    {
        utf8::decode($input);
        $input = NFC($input);
    }
    else
    {
        no utf8;
    }

    if ( $language eq 'greek_punct' )
    {

        #Punctuation.#
        $input =~ s/·/:/g;
        $input =~ s/—/_/g;
        $input =~ s/’/'/g;

        # The true Unicode equivalent of the numeral (#) is ʹ.
        # However, the NFC() function call above will turn ʹ
        # into ʹ. Therefore, the conversion below will be
        # from ʹ into #, and not from ʹ into #.
        $input =~ s/ʹ/#/g;
    }
    if ( $language eq 'greek' || $language eq 'greek_punct' )
    {

        #Uppercase accents and diacritics.#
        $input =~ s/Ᾱ/*a&/g;
        $input =~ s/Ᾰ/*a'/g;
        $input =~ s/ᾌ/*)\/a|/g;
        $input =~ s/ᾍ/*(\/a|/g;
        $input =~ s/ᾎ/*)=a|/g;
        $input =~ s/ᾏ/*(=a|/g;
        $input =~ s/Ἃ/*(\\a/g;
        $input =~ s/Ἄ/*)\/a/g;
        $input =~ s/Ἅ/*(\/a/g;
        $input =~ s/Ἆ/*)=a/g;
        $input =~ s/Ἇ/*(=a/g;
        $input =~ s/ᾈ/*)a|/g;
        $input =~ s/ᾉ/*(a|/g;
        $input =~ s/Ἀ/*)a/g;
        $input =~ s/Ἁ/*(a/g;
        $input =~ s/Ὰ/*\a/g;
        $input =~ s/Ά/*\/a/g;
        $input =~ s/ᾼ/*a|/g;
        $input =~ s/Ἂ/*)\\a/g;
        $input =~ s/Ἃ/*(\\a/g;
        $input =~ s/Ἒ/*)\\e/g;
        $input =~ s/Ἓ/*(\\e/g;
        $input =~ s/Ἔ/*)\/e/g;
        $input =~ s/Ἕ/*(\/e/g;
        $input =~ s/Ἐ/*)e/g;
        $input =~ s/Ἑ/*(e/g;
        $input =~ s/Ὲ/*\e/g;
        $input =~ s/Έ/*\/e/g;
        $input =~ s/Ὲ/*\\e/g;
        $input =~ s/ᾜ/*)\/h|/g;
        $input =~ s/ᾝ/*(\/h|/g;
        $input =~ s/ᾞ/*)=h|/g;
        $input =~ s/ᾟ/*(=h|/g;
        $input =~ s/Ἢ/*)\\h/g;
        $input =~ s/Ἣ/*(\\h/g;
        $input =~ s/Ἤ/*)\/h/g;
        $input =~ s/Ἥ/*(\/h/g;
        $input =~ s/Ἦ/*)=h/g;
        $input =~ s/Ἧ/*(=h/g;
        $input =~ s/ᾘ/*)h|/g;
        $input =~ s/ᾙ/*(h|/g;
        $input =~ s/Ἠ/*)h/g;
        $input =~ s/Ἡ/*(h/g;
        $input =~ s/Ὴ/*\\h/g;
        $input =~ s/Ή/*\/h/g;
        $input =~ s/ῌ/*h|/g;
        $input =~ s/Ῑ/*i&/g;
        $input =~ s/Ῐ/*i'/g;
        $input =~ s/Ϊ/*+i/g;
        $input =~ s/Ἲ/*)\\i/g;
        $input =~ s/Ἳ/*(\\i/g;
        $input =~ s/Ἴ/*)\/i/g;
        $input =~ s/Ἵ/*(\/i/g;
        $input =~ s/Ἶ/*)=i/g;
        $input =~ s/Ἷ/*(=i/g;
        $input =~ s/Ἰ/*)i/g;
        $input =~ s/Ἱ/*(i/g;
        $input =~ s/Ὶ/*\\i/g;
        $input =~ s/Ί/*\/i/g;
        $input =~ s/Ὂ/*)\\o/g;
        $input =~ s/Ὃ/*(\\o/g;
        $input =~ s/Ὄ/*)\/o/g;
        $input =~ s/Ὅ/*(\/o/g;
        $input =~ s/Ὄ/*)=o/g;
        $input =~ s/Ὅ/*(=o/g;
        $input =~ s/Ὀ/*)o/g;
        $input =~ s/Ὁ/*(o/g;
        $input =~ s/Ὸ/*\\o/g;
        $input =~ s/Ό/*\/o/g;
        $input =~ s/Ρ/*)r/g;
        $input =~ s/Ῥ/*(r/g;
        $input =~ s/Ῡ/*u&/g;
        $input =~ s/Ῠ/*u'/g;
        $input =~ s/Ϋ/*+u/g;
        $input =~ s/Ὓ/*(\\u/g;
        $input =~ s/Ὕ/*(\/u/g;
        $input =~ s/Ὗ/*(=u/g;
        $input =~ s/Ὑ/*(u/g;
        $input =~ s/Ὺ/*\u/g;
        $input =~ s/Ύ/*\/u/g;
        $input =~ s/ᾬ/*)\/w|/g;
        $input =~ s/ᾭ/*(\/w|/g;
        $input =~ s/ᾮ/*)=w|/g;
        $input =~ s/ᾯ/*(=w|/g;
        $input =~ s/Ὢ/*)\\w/g;
        $input =~ s/Ὣ/*(\\w/g;
        $input =~ s/Ὤ/*)\/w/g;
        $input =~ s/Ὥ/*(\/w/g;
        $input =~ s/Ὦ/*)=w/g;
        $input =~ s/Ὧ/*(=w/g;
        $input =~ s/ᾨ/*)w|/g;
        $input =~ s/ᾩ/*(w|/g;
        $input =~ s/Ὠ/*)w/g;
        $input =~ s/Ὡ/*(w/g;
        $input =~ s/Ὼ/*\\w/g;
        $input =~ s/Ώ/*\/w/g;
        $input =~ s/ῼ/*w|/g;

        #Lowercase accents and diacritics.#
        $input =~ s/ᾱ/a&/g;
        $input =~ s/ᾰ/a'/g;
        $input =~ s/ᾄ/a)\/|/g;
        $input =~ s/ᾅ/a(\/|/g;
        $input =~ s/ᾆ/a)=|/g;
        $input =~ s/ᾇ/a(=|/g;
        $input =~ s/ᾀ/a)|/g;
        $input =~ s/ᾁ/a(|/g;
        $input =~ s/ᾴ/a\/|/g;
        $input =~ s/ᾷ/a=|/g;
        $input =~ s/ἂ/a)\\/g;
        $input =~ s/ἃ/a(\\/g;
        $input =~ s/ἄ/a)\//g;
        $input =~ s/ἅ/a(\//g;
        $input =~ s/ἆ/a)=/g;
        $input =~ s/ἇ/a(=/g;
        $input =~ s/ἀ/a)/g;
        $input =~ s/ἁ/a(/g;
        $input =~ s/ὰ/a\\/g;
        $input =~ s/ά/a\//g;
        $input =~ s/ᾶ/a=/g;
        $input =~ s/ᾳ/a|/g;
        $input =~ s/ἒ/e)\\/g;
        $input =~ s/ἓ/e(\\/g;
        $input =~ s/ἔ/e)\//g;
        $input =~ s/ἕ/e(\//g;
        $input =~ s/ἐ/e)/g;
        $input =~ s/ἑ/e(/g;
        $input =~ s/ὲ/e\\/g;
        $input =~ s/έ/e\//g;
        $input =~ s/ᾔ/h)\/|/g;
        $input =~ s/ᾕ/h(\/|/g;
        $input =~ s/ᾖ/h)=|/g;
        $input =~ s/ᾗ/h(=|/g;
        $input =~ s/ᾐ/h)|/g;
        $input =~ s/ᾑ/h(|/g;
        $input =~ s/ῄ/h\/|/g;
        $input =~ s/ῇ/h=|/g;
        $input =~ s/ἢ/h)\\/g;
        $input =~ s/ἣ/h(\\/g;
        $input =~ s/ἤ/h)\//g;
        $input =~ s/ἥ/h(\//g;
        $input =~ s/ἦ/h)=/g;
        $input =~ s/ἧ/h(=/g;
        $input =~ s/ἠ/h)/g;
        $input =~ s/ἡ/h(/g;
        $input =~ s/ὴ/h\\/g;
        $input =~ s/ή/h\//g;
        $input =~ s/ῆ/h=/g;
        $input =~ s/ῃ/h|/g;
        $input =~ s/ῑ/i&/g;
        $input =~ s/ῐ/i'/g;
        $input =~ s/ῒ/i+\\/g;
        $input =~ s/ΐ/i+\//g;
        $input =~ s/ῗ/i+=/g;
        $input =~ s/ϊ/i+/g;
        $input =~ s/ἲ/i)\\/g;
        $input =~ s/ἳ/i(\\/g;
        $input =~ s/ἴ/i)\//g;
        $input =~ s/ἵ/i(\//g;
        $input =~ s/ἶ/i)=/g;
        $input =~ s/ἷ/i(=/g;
        $input =~ s/ἰ/i)/g;
        $input =~ s/ἱ/i(/g;
        $input =~ s/ὶ/i\\/g;
        $input =~ s/ί/i\//g;
        $input =~ s/ῖ/i=/g;
        $input =~ s/ὂ/o)\\/g;
        $input =~ s/ὃ/o(\\/g;
        $input =~ s/ὄ/o)\//g;
        $input =~ s/ὅ/o(\//g;
        $input =~ s/ὀ/o)/g;
        $input =~ s/ὁ/o(/g;
        $input =~ s/ὸ/o\\/g;
        $input =~ s/ό/o\//g;
        $input =~ s/ῤ/r)/g;
        $input =~ s/ῤ/r(/g;
        $input =~ s/ῡ/u&/g;
        $input =~ s/ῠ/u'/g;
        $input =~ s/ῢ/u+\\/g;
        $input =~ s/ΰ/u+\//g;
        $input =~ s/ῧ/u+=/g;
        $input =~ s/ϋ/u+/g;
        $input =~ s/ὒ/u)\\/g;
        $input =~ s/ὓ/u(\\/g;
        $input =~ s/ὔ/u)\//g;
        $input =~ s/ὕ/u(\//g;
        $input =~ s/ὖ/u)=/g;
        $input =~ s/ὗ/u(=/g;
        $input =~ s/ὐ/u)/g;
        $input =~ s/ὑ/u(/g;
        $input =~ s/ὺ/u\\/g;
        $input =~ s/ύ/u\//g;
        $input =~ s/ῦ/u=/g;
        $input =~ s/ᾤ/w)\/|/g;
        $input =~ s/ᾥ/w(\/|/g;
        $input =~ s/ᾦ/w)=|/g;
        $input =~ s/ᾧ/w(=|/g;
        $input =~ s/ᾠ/w)|/g;
        $input =~ s/ᾡ/w(|/g;
        $input =~ s/ῴ/w\/|/g;
        $input =~ s/ῷ/w=|/g;
        $input =~ s/ὢ/w)\\/g;
        $input =~ s/ὣ/w(\\/g;
        $input =~ s/ὤ/w)\//g;
        $input =~ s/ὥ/w(\//g;
        $input =~ s/ὦ/w)=/g;
        $input =~ s/ὧ/w(=/g;
        $input =~ s/ὠ/w)/g;
        $input =~ s/ὡ/w(/g;
        $input =~ s/ὼ/w\\/g;
        $input =~ s/ώ/w\//g;
        $input =~ s/ῶ/w=/g;
        $input =~ s/ῳ/w|/g;

        #Plain uppercase letters.#
        $input =~ s/Α/*a/g;
        $input =~ s/Β/*b/g;
        $input =~ s/Γ/*g/g;
        $input =~ s/Δ/*d/g;
        $input =~ s/Ε/*e/g;
        $input =~ s/Ζ/*z/g;
        $input =~ s/Η/*h/g;
        $input =~ s/Θ/*q/g;
        $input =~ s/Ι/*i/g;
        $input =~ s/Κ/*k/g;
        $input =~ s/Λ/*l/g;
        $input =~ s/Μ/*m/g;
        $input =~ s/Ν/*n/g;
        $input =~ s/Ξ/*c/g;
        $input =~ s/Ο/*o/g;
        $input =~ s/Π/*p/g;
        $input =~ s/Ρ/*r/g;
        $input =~ s/Ϲ/*s/g;
        $input =~ s/Σ/*s/g;
        $input =~ s/Τ/*t/g;
        $input =~ s/Υ/*u/g;
        $input =~ s/Φ/*f/g;
        $input =~ s/Χ/*x/g;
        $input =~ s/Ψ/*y/g;
        $input =~ s/Ω/*w/g;
        $input =~ s/Ϝ/*v/g;

        #Plain lowercase letters.#
        $input =~ s/α/a/g;
        $input =~ s/β/b/g;
        $input =~ s/γ/g/g;
        $input =~ s/δ/d/g;
        $input =~ s/ε/e/g;
        $input =~ s/ζ/z/g;
        $input =~ s/η/h/g;
        $input =~ s/θ/q/g;
        $input =~ s/ι/i/g;
        $input =~ s/κ/k/g;
        $input =~ s/λ/l/g;
        $input =~ s/μ/m/g;
        $input =~ s/ν/n/g;
        $input =~ s/ξ/c/g;
        $input =~ s/ο/o/g;
        $input =~ s/π/p/g;
        $input =~ s/ρ/r/g;
        $input =~ s/σ/s/g;
        $input =~ s/ς/s/g;
        $input =~ s/ϲ/s/g;
        $input =~ s/τ/t/g;
        $input =~ s/υ/u/g;
        $input =~ s/φ/f/g;
        $input =~ s/χ/x/g;
        $input =~ s/ψ/y/g;
        $input =~ s/ω/w/g;
        $input =~ s/ϝ/v/g;
    }
    else
    {
        warn 'Only "greek/greek_punct" is available for now.';
    }

    if ( $style eq 'TLG' )
    {
        $input = uc $input;
    }
    elsif ( $style eq 'Perseus' )
    {
        $input = lc $input;
    }
    else
    {
        warn 'Only the TLG and Perseus styles are available for now.';
    }
    return $input;
}

=head1 BUGS

Please report any bugs or feature requests to C,
or through the web interface at L.

I will be notified, and then you'll automatically be notified of progress
on your bug as I make changes.

Also, the source code is available at GitHub: L

=head1 AUTHOR

Dimitrios - Georgios Kontopoulos, C<<  >>

=head1 ACKNOWLEDGEMENTS

The inspiration to write this module is thanks to B, a
member of the Ubuntu-gr community (L).
Her contribution to defining and testing the conversion rules was more than significant.

Valuable contributions in form of bug reports have been also provided by
B, B, and B.

=head1 SEE ALSO

L

L

L

=head1 COPYRIGHT

Copyright 2012-22 Dimitrios - Georgios Kontopoulos.

=head1 LICENSE

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

=cut

1;    # End of Encode::BetaCode