NAME

Unicode::Subscript - Generate subscripted and superscripted UTF-8 text without markup

SYNOPSIS

            

              
              
use Unicode::Subscript qw(subscript superscript);
say 'H' . subscript(2) . 'O';  # H₂O
say 'This algorithm is O(n' . superscript(3) . ')';  # O(n³)
say superscript('this text is really high!');  # ᵗʰⁱˢ ᵗᵉˣᵗ ⁱˢ ʳᵉᵃˡˡʸ ʰⁱᵍʰ!
use Unicode::Subscript qw(SM TM);
say 'Eat at Subway' . TM();   # Eat at Subway™
use Unicode::Subscript ':all';   # import everything
            
          

DESCRIPTION

This module provides methods to convert characters to the equivalent UTF-8 characters for their subscripted or superscripted forms. This may come in handy when generating fractions, chemical formulas, footnotes, etc.

FUNCTIONS

subscript ($text)

Return the subscripted version of $text, in UTF-8 encoding. The following characters has subscripted forms in Unicode:

• Digits 0-9, +, -, = and ()

• A small number of lowercase letters: a e h i k l m n o p r s t u v x

Any other input characters will be left un-suscripted.

superscript ($text)

Return the superscripted version of $text, in UTF-8 encoding. The following characters have superscripted forms in Unicode:

• Digits 0-9, +, -, = and ()

• All of the lowercase letters except q

• A small number of uppercase letters: A B D E G H I J K L M N O P R T U V W

Any other input characters will be left un-superscripted.

TM

Returns the Unicode (TM) superscript character.

SM

Returns the Unicode (SM) superscript character.

SEE ALSO

Unicode::Fraction

AUTHOR

Richard Harris <RJH@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2012 by Richard Harris.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.