#!/usr/bin/perl -n

#use strict;
#use warnings;
use charnames ();
use encoding "utf8";

$|++;

my $chars = {
    'HYPHEN'                      => '-',    #  \x{2010}
    'SOFT HYPHEN'                 => '-',    #­ \x{00AD}
    'MINUS SIGN'                  => '-',    #  \x{2212}
    'FIGURE DASH'                 => '-',    #  \x{2012}
    'ACUTE ACCENT'                => "'",    #  \x{00B4}
    'GRAVE ACCENT'                => "'",    #  \x{0060}
    'LEFT SINGLE QUOTATION MARK'  => "'",    #  \x{2018}
    'RIGHT SINGLE QUOTATION MARK' => "'",    #  \x{2019}
    'LEFT DOUBLE QUOTATION MARK'  => '"',    #  \x{201C}
    'RIGHT DOUBLE QUOTATION MARK' => '"',    #  \x{201D}
    'BOX DRAWINGS LIGHT VERTICAL' => '|',    #  \x{2502}
    'MULTIPLICATION SIGN'         => '*',    #  \x{00D7}
    'BACKSPACE'                   => '',     #  \x{0008}
    'DELETE'                      => '',     #  \x{0127}
};


# If the first character is an equal sign, skip it and
# display the identity of each remaining character.
#
if (/^=/) {
    chomp;
    for my $index ( 1 .. length($_) - 1 ) {

        my $char = substr( $_, $index++, 1 );

        print $char . " "
                    . ord( $char )
                    . " "
                    . sprintf( "\\%03o", ord($char) )
                    . " "
                    . sprintf( "\\x{%04X}", ord($char) )
                    . " = '"
                    . charnames::viacode( ord($char) )
                    . "'\n" ;

    }

} else {

    for my $cname ( keys %$chars ) {

        my $char = chr( charnames::vianame($cname) );
        s/$char/$chars->{$cname}/g;

    }

    print;

}