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#!/usr/bin/perl -w
# convert A8 text to UTF-8. Control graphics characters are replaced with
# nearest Unicode equivalents (mostly from the box-drawing range, or from
# the basic-latin range with -i option).
# Careful editing this script: you need an editor that groks UTF-8, or at
# least one that won't mangle the UTF-8 sequences embedded in the tables
# below.
($SELF = $0) =~ s,.*/,,;
binmode(STDOUT, ":utf8");
binmode(STDIN, ":bytes");
use utf8;
%atascii_table = (
0 => "♥",
1 => "┣",
2 => "┃",
3 => "┛",
4 => "┫",
5 => "┓",
6 => "╱",
7 => "╲",
8 => "◢",
9 => "▗",
10 => "◣",
11 => "▝",
12 => "▘",
13 => "▔",
14 => "▁",
15 => "▖",
16 => "♣",
17 => "┏",
18 => "━",
19 => "╋",
20 => "●",
21 => "▄",
22 => "▎",
23 => "┳",
24 => "┻",
25 => "▌",
26 => "┗",
27 => "␛",
28 => "↑",
29 => "↓",
30 => "←",
31 => "→",
96 => "◆",
123 => "♠",
125 => "↰",
126 => "◀",
127 => "▶",
136 => "◤",
137 => "▛",
138 => "◥",
139 => "▙",
140 => "▟",
141 => "▆",
142 => "🮅",
143 => "▜",
148 => "◙",
149 => "▀",
150 => "🮊",
153 => "▐",
155 => "\n",
156 => "⍐",
157 => "⍗",
158 => "⍇",
159 => "⍈",
160 => "█",
);
%xl_intl_table = (
0 => "á",
1 => "ù",
2 => "Ñ",
3 => "É",
4 => "ç",
5 => "ô",
6 => "ò",
7 => "ì",
8 => "£",
9 => "ï",
10 => "ü",
11 => "ä",
12 => "Ö",
13 => "ú",
14 => "ó",
15 => "ö",
16 => "Ü",
17 => "â",
18 => "û",
19 => "î",
20 => "é",
21 => "è",
22 => "ñ",
23 => "ê",
24 => "ȧ",
25 => "à",
26 => "Ȧ",
27 => "␛",
28 => "↑",
29 => "↓",
30 => "←",
31 => "→",
96 => "¡",
123 => "Ä",
126 => "◀",
127 => "▶",
155 => "\n",
);
undef $/;
$table = \%atascii_table;
$print_table = 0;
while(@ARGV && $ARGV[0] =~ /^-/) {
for($ARGV[0]) {
/^-i$/ && do { $table = \%xl_intl_table; next; };
/^-t$/ && do { $print_table = 1; next; };
/^-r$/ && do { $reverse = 1; next; };
/^--?h/ && do { usage(0) };
warn "$SELF: unknown option: $_\n";
usage(1);
}
shift @ARGV;
}
if($reverse) {
binmode(STDOUT, ":bytes");
for(keys %$table) {
$revtable{ord($table->{$_})} = chr($_);
}
$table = \%revtable;
}
if($print_table) {
for(sort { $a <=> $b } keys %$table) {
my $chr = translate(chr $_);
$chr = '\n' if $chr eq "\n";
printf '"%d","$%02x","%s"' . "\n", $_, $_, $chr;
}
exit 0;
}
$_ = <>;
s/(.)/translate($1)/seg;
print;
sub translate {
my $o = ord(shift);
my $ret;
$ret = $table->{$o};
return $ret if defined($ret);
$ret = $table->{$o & 0x7f};
return $ret if defined($ret);
return chr($o & 0x7f);
}
sub usage {
print <<EOF;
Usage: $SELF [--help] | [-t [-r] [-i]] | [-r] [-i] infile [infile ...]
See man page for details.
EOF
exit $_[0];
}
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