<(common.inc.plp)><:
my $mode = ($Request // '') eq 'xorg' || exists $get{xorg};
my $modename = $mode ? 'X.Org' : 'RFC-1345';
Html({
title => 'digraph cheat sheet',
version => '1.2',
description => [
"Complete table of digraph characters from $modename.",
],
keywords => [qw'
digraph mnemonic compose composition pair
character char glyph table unicode vim xorg x11 x
'],
stylesheet => [qw'light'],
data => [qw( digraphs.inc.pl )],
});
:>
<:= $modename :> Digraphs
Character mnemonics following compose key ⎄<:
say join("\n",
$mode ? (
' in the X Window System (Shift+AltGr by default).',
'Differences from RFC-1345 are indicated.',
) : (':',
'i^k in Vim,',
'^u^\ in Emacs,',
'^a^v in Screen.',
'Similar but different from X.Org.',
),
'Also see common Unicode.
',
);
say 'Unofficial proposals',
' are available as ex commands.' if not $mode;
:>
<:
my $di = do 'digraphs.inc.pl'
or die "Error loading digraphs data: ", $@ // $!;
if (exists $get{v}) {
# show characters for inverted mnemonics (vim alternatives)
$di->{ substr($_, 1, 1) . substr($_, 0, 1) } ||=
[ $di->{$_}->[0], '', 'l0 ex', '', $di->{$_}->[4] ]
for grep { ref $di->{$_} } keys %{$di};
}
my @chars = (
[qw{! " % ' ( ) * + , - . /}],
['0'..'9'], [qw{: ; < = > ?}],
['A'..'M'], ['N'..'Z'],
['a'..'m'], ['n'..'z'],
);
my @chars2 = (['_'], @chars); # trailing character (extended set)
my @columns = !exists $get{split} ? \@chars2 :
([@chars2[0, 1, 3, 4, 6]], [@chars2[2, 5, 7]]);
if ($mode) {
my $xorg = do 'data/digraphs-xorg.inc.pl'
or die "Error loading Xorg data: ", $@ // $!;
$_ = [ord $_] for values %{$xorg};
$xorg->{$_}->[2] = # class = compatibility
$di->{$_} ? $di->{$_}->[0] != $xorg->{$_}->[0] ? 'l1' : # conflict
$di->{$_}->[2] =~ /\bu-di\b/ ? 'l5' : 'l3' : 'l2' # rfc|any|none
for keys %{$xorg};
for my $cp (map {$_->[0]} values %{$xorg}) {
next if (state $seen = {})->{$cp}++; # List::MoreUtils::uniq
# find multiple equivalent mnemonics
my @equiv = grep {$cp eq $_->[0]}
map {$xorg->{$_}} sort keys %{$xorg}; # values ordered by mnem.
# search for the most compatible match
my ($compat) = sort {
$equiv[$b]->[2] cmp $equiv[$a]->[2] # highest level
|| $b <=> $a # fallback to last mnemonic
} 0 .. $#equiv;
# reclassify all but one as level 0 (omitted)
splice @equiv, $compat // -1, 1, ();
$_->[2] = 'l0 ex' for @equiv;
}
$chars2[0] = [qw( # ^ _ ` ~ )];
@chars = @chars2;
$di = $xorg;
}
for my $colchars (@columns) {
print '
';
print qq'' for map {scalar @$_} @{$colchars};
say '';
for my $section (qw{thead tfoot}) {
print "<$section>| ↳";
print ' | ', EscapeHTML($_) for map {@$_} @{$colchars};
say ' | ';
}
for my $c1group (@chars) {
print ' |
|---|
';
for my $c1 (@$c1group) {
print '| ', EscapeHTML($c1);
for my $c2 (map {@$_} @$colchars) {
my $mnem = $c1 . $c2;
if (not defined $di->{$mnem}) {
print ' | ';
next;
}
if (ref $di->{$mnem} ne 'ARRAY') {
printf ' | ', EscapeHTML($mnem);
next;
}
my ($codepoint, $name, $support, $script, $string) = @{ $di->{$mnem} };
my $glyph = $string || chr $codepoint;
utf8::upgrade($glyph); # prevent latin1 output
my $desc = $mnem . ($name && " ($name)");
my @class = ('X', grep {$_} $support && "u-$support", $script);
$glyph = EscapeHTML($glyph);
$glyph = "$glyph" if $script =~ /\bZs\b/;
printf "\n".' | %s',
join(' ', @class), EscapeHTML($desc), $glyph;
}
say "\n | ", EscapeHTML($c1);
}
}
say ' |
|---|
';
print '
' if exists $get{split};
}
if ($mode) {
:>
| matching RFC-1345
| matching proposal
| unique to Xorg
| conflict
| duplicate
|
<: } else { :>
| control
| space
| combining
| spacing modifier
| quote
| punctuation
| symbol
| math
| currency
| numeric
| greek
| cyrillic
| latin
| hebrew
| arabic
| korean
| japanese
| chinese
|
| full support
| vim extension
| vim v8.0
| proposal
| not in vim
|
<: }