-use open OUT => ':utf8', ':std';
-use Data::Dumper;
-
-our $VERSION = '1.02';
-
-# expect input data source at command line
-@ARGV or die "Specify input source file or - for STDIN\n";
-
-# skip everything until a character indented by 1 space (table start)
-do {
- $_ = readline;
- defined or die "Premature input end";
-} until /^\s\S/;
-
-my @t = $_; # add first line (already read, assume it's ok)
-
-# read the rest of the character table
-while ($_ = readline) {
- # check for table end (chapter 4)
- last if /^\d/;
-
- # parse table lines (ignore (unindented) page break)
- next unless s/^ //;
- chomp;
-
- # add the line to @t
- if (s/^ {15}/ /) {
- # continuation line (add to last entry)
- $t[-1] .= $_;
- }
- else {
- # add a new entry
- push @t, $_;
- }
-}
-
-# create a hash of desired input
-my %di;
-for (@t) {
- my ($mnem, $char, $name) = split / +/, $_, 3;
- next if length $mnem != 2;
- $di{$mnem} = hex $char;
-}
-
-# XXX
-my %trans = (
- 0xE001 => 0, # join lines: not accepted
- 0xE004 => 0, # umlaut is no different from diaeresis 0x0308
- 0xE005 => 0x0344, # discouraged
- 0xE006 => 0x0300,
- 0xE007 => 0x0301,
- 0xE008 => 0x0302,
- 0xE009 => 0x0303,
- 0xE00A => 0x0304,
- 0xE00B => 0x0306,
- 0xE00C => 0x0307,
- 0xE00D => 0x0308,
- 0xE00E => 0x030A,
- 0xE00F => 0x030B,
- 0xE010 => 0x030C,
- 0xE011 => 0x0327,
- 0xE012 => 0x0328,
- 0xE013 => 0x0332,
- 0xE014 => 0x0333,
- 0xE015 => 0x0338,
- 0xE016 => 0x0345,
- 0xE017 => 0x0314,
- 0xE018 => 0x0313,
- 0xE019 => 0x1FFE,
- 0xE01A => 0x1FBF,
- 0xE01B => 0x03D0, # middle beta = curled beta?
- 0xE01C => 0x25CB,
- 0xE01D => 0x0192,
- 0xE01E => 0x0292,
- 0xE01F => 0x33C2, # am, compatibility char
- 0xE020 => 0x33D8, # pm, compatibility char
- 0xE021 => 0x2121,
- 0xE022 => 0xFE8E,
- 0xE023 => 0, # dutch guilder 0192 is already encoded, and not very useful anyway
- 0xE024 => 0x0393,
- 0xE025 => 0x20D7, # also 20D1; non-spacing
- 0xE026 => 0x1FEF,
- 0xE027 => 0x1FC0,
- 0xE028 => 0x01F0, #but uppercase
-);
-for (values %di) {
- $_ >= 0xE000 or next;
- $_ = $trans{$_} if defined $trans{$_};
-}
-
-# personal addendums
-my @extra;
-if (-r 'shiar.inc.txt') {
- open my $include, '<:utf8', 'shiar.inc.txt';
- for (readline $include) {
- m{^(\$?[!"%'-Z_a-z]{2}) (.)} or next;
- warn("$1 already defined"), next if defined $di{$1};
- $di{$1} = ord $2;
- push @extra, $1;
- }
-}
-warn $@ if $@;
-
-$di{chr $_} = $_ for 32 .. 126;
-$di{'\\'.$_} = delete $di{$_} for '{', '}', '\\';
+use open OUT => ':encoding(utf-8)', ':std';
+
+our $VERSION = '1.06';
+
+# import and combine various digraph data
+push @INC, 'data';
+my $rfc = do 'digraphs-rfc.inc.pl'
+ or die "error reading digraphs include: ", $@ // $!;
+my $extra = do 'digraphs-shiar.inc.pl'
+ or warn "could not include shiar proposals: ", $@ // $!;
+my $vim = do 'digraphs-vim.inc.pl'
+ or warn "could not include vim extensions ", $@ // $!;
+my $vimold = do 'digraphs-vim-74.inc.pl'
+ or warn "could not include vim compatibility ", $@ // $!;
+my $di = { %{$vim // {}}, %{$rfc}, %{$extra // {}} };