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, $_;
- }
-}
+our $VERSION = '1.03';
# create a hash of desired input
-my %di;
-for (@t) {
- my ($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 $trans{$_};
-}
+my $di = do 'data/digraphs-rfc.inc.pl'
+ or die "error reading digraphs include: ", $@ // $!;
# personal addendums
my @extra;
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;
+ 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 '{', '}', '\\';
+$di->{chr $_} = $_ for 32 .. 126;
+$di->{'\\'.$_} = delete $di->{$_} for '{', '}', '\\';
# optionally get unicode character information
my %info = eval {
require Unicode::UCD;
map {
- $_ => Unicode::UCD::charinfo($di{$_})
+ $_ => Unicode::UCD::charinfo($di->{$_})
|| { block => '?', category => 'Xn', name => '', script => '' }
- } keys %di;
+ } keys %{$di};
};
# add custom categories for certain blocks
# mark unofficial extras as such
$info{$_}->{category} .= ' Xz' for @extra;
-for (keys %di) {
- $info{$_}->{string} = chr(9676) . chr($di{$_}) if $info{$_}->{combining};
+for (keys %{$di}) {
+ $info{$_}->{string} = chr(9676) . chr($di->{$_}) if $info{$_}->{combining};
# find control characters (first 32 chars from 0 and 128)
- next unless ($di{$_} & ~0b1001_1111) == 0 or $di{$_} == 127;
+ next unless ($di->{$_} & ~0b1001_1111) == 0 or $di->{$_} == 127;
# rename to something more descriptive
$info{$_}->{name} = $info{$_}->{unicode10}
? '<'.$info{$_}->{unicode10}.'>' # the old name was much more useful
- : sprintf('<control U+%04X>', $di{$_}); # at least identify by value
+ : sprintf('<control U+%04X>', $di->{$_}); # at least identify by value
# show descriptive symbols instead of control chars themselves
- $info{$_}->{string} = $di{$_} < 32 ? chr($di{$_} + 0x2400) : chr(0xFFFD);
+ $info{$_}->{string} = $di->{$_} < 32 ? chr($di->{$_} + 0x2400) : chr(0xFFFD);
}
# presentational string for some control(lish) entries
-$info{$_}->{string} = '-' for grep { $di{$_} == 0x00AD } keys %di;
-$info{$_}->{string} = '␣' for grep { $di{$_} == 0x200B } keys %di;
-$info{$_}->{string} = '|' for grep { $di{$_} == 0x200C } keys %di;
-$info{$_}->{string} = '⁀' for grep { $di{$_} == 0x200D } keys %di;
-$info{$_}->{string} = '→' for grep { $di{$_} == 0x200E } keys %di;
-$info{$_}->{string} = '←' for grep { $di{$_} == 0x200F } keys %di;
+$info{$_}->{string} = '-' for grep { $di->{$_} == 0x00AD } keys %{$di};
+$info{$_}->{string} = '␣' for grep { $di->{$_} == 0x200B } keys %{$di};
+$info{$_}->{string} = '|' for grep { $di->{$_} == 0x200C } keys %{$di};
+$info{$_}->{string} = '⁀' for grep { $di->{$_} == 0x200D } keys %{$di};
+$info{$_}->{string} = '→' for grep { $di->{$_} == 0x200E } keys %{$di};
+$info{$_}->{string} = '←' for grep { $di->{$_} == 0x200F } keys %{$di};
# convert info hashes into arrays of strings to output in display order
for my $row (values %info) {
print "use utf8;\n";
print "+{\n";
printf '(map {$_=>0} qw{%s}),'."\n", join(' ',
- map { substr($_, 1, 1).substr($_, 0, 1) } sort keys %di
+ map { substr($_, 1, 1).substr($_, 0, 1) } sort keys %{$di}
);
printf "q{%s}=>[%s],\n", $_, join(',',
- $di{$_}, # original code point
+ $di->{$_}, # original code point
$info{$_} # optional additional arguments
? map {"'$_'"} @{ $info{$_} }
: ()
-) for sort keys %di;
+) for sort keys %{$di};
print "}\n";
__END__
=head1 NAME
-mkdigraphlist - Output digraph data from RFC-1345
+mkdigraphlist - Output character list of combined digraph data
=head1 SYNOPSIS
-Extract digraphs from text specifications as a perl hash:
-
- mkdigraphlist rfc1345.txt custom.txt > digraphs.inc.pl
-
-Input can be the literal RFC (or similar) document:
-
- curl http://www.ietf.org/rfc/rfc1345.txt | mkdigraphlist -
-
-Test by printing the character for DO (should be a dollar sign):
-
+ mkdigraphlist >digraphs.inc.pl
perl -e'$di = do "digraphs.inc.pl"; print chr $di->{DO}->[0]'
=head1 DESCRIPTION
git.shiar.nl / sheet.git / blobdiff