custom.pl 3.33 KB
Newer Older
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 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166
#-*- perl -*-

use version;

#my $vernum = version->new($ARGV[1])->numify;

if ($ARGV[0] eq 'lb') {
    goto LB_CUSTOM;
} elsif ($ARGV[0] eq 'ea') {
    goto EA_CUSTOM;
} elsif ($ARGV[0] eq 'gb') {
    goto GB_CUSTOM;
} else {
    exit 0;
}

LB_CUSTOM:

print <<'EOF';
## SA characters may be categorized by their Grapheme_Cluster_Break properties.
## See [UAX #29].
EOF

exit 0;

EA_CUSTOM:

my %eaw;
open DATA, '<', "EastAsianWidth-$ARGV[1].txt";
while (<DATA>) {
    chomp $_;
    s/\s*#.*//;
    next unless /\S/;
    my ($ucs, $c) = split /;\s*/, $_;

    next unless $ucs;
    my ($beg, $end) = split /\.\./, $ucs;
    $end ||= $beg;
    $beg = hex("0x$beg");
    $end = hex("0x$end");

    foreach my $chr (($beg..$end)) {
        $eaw{$chr} = $c;
    }
}
close DATA;

open UD, '<', "UnicodeData-$ARGV[1].txt";
while (<UD>) {
    ($code, $name, $cat) = split /;/;
    if ($cat =~ /^(Me|Mn|Cc|Cf|Zl|Zp)$/) {
	my $eaw = $eaw{hex"0x$code"} || '';
	$eaw = '' if $eaw eq 'N';
	print "$code;Z$eaw # $name\n";
    }
}
close UD;
exit 0;

GB_CUSTOM:

#exit 0 unless 6.001000 <= $vernum;

my @codes;
my %Virama;
my %GC_Letter;
my %Brahmic_Script;
my %Brahmic;
my %name;
my %gc;

open my $ucd, '<', "UnicodeData-$ARGV[1].txt" or die $!;
while (<$ucd>) {
    chomp $_;
    s/\s*#.*$//;
    next unless /\S/;
    my ($code, $name, $gc, $ccc) = split /;/;
    $code = hex("0x$code");
    $Virama{$code} = 1 if $ccc+0 == 9;
    $GC_Letter{$code} = 1 if $gc =~ /^L/;
    push @codes, $code;
    $name{$code} = $name;
    $gc{$code} = $gc;
}
close $ucd;

open my $scr, '<', "Scripts-$ARGV[1].txt" or die $!;
while (<$scr>) {
    s/\s*\#.*//;
    next unless /\S/;

    my ($char, $prop) = split /\s*;\s*/, $_;
    chomp $prop;
    next unless $prop =~ /^(\@[\w:]+|\w+)$/;
    my ($start, $end) = ();
    ($start, $end) = split /\.\./, $char;
    $end ||= $start;
    foreach my $c (hex("0x$start") .. hex("0x$end")) {
        $Brahmic_Script{$prop} = 1 if $Virama{$c};
    }
}
close $scr;
open $scr, '<', "Scripts-$ARGV[1].txt" or die $!;
while (<$scr>) {
    s/\s*\#.*//;
    next unless /\S/;

    my ($char, $prop) = split /\s*;\s*/, $_;
    chomp $prop;
    next unless $prop =~ /^(\@[\w:]+|\w+)$/;
    my ($start, $end) = ();
    ($start, $end) = split /\.\./, $char;
    $end ||= $start;
    foreach my $c (hex("0x$start") .. hex("0x$end")) {
	$Brahmic{$c} = 1 if $Brahmic_Script{$prop};
    }
}
close $scr;

open my $gcb, '<', "GraphemeBreakProperty-$ARGV[1].txt" or die $!;
while (<$gcb>) {
    s/\s*\#.*//;
    next unless /\S/;

    my ($char, $prop) = split /\s*;\s*/, $_;
    chomp $prop;
    next unless $prop =~ /^(\@[\w:]+|\w+)$/;

    my ($start, $end) = ();
    ($start, $end) = split /\.\./, $char;
    $end ||= $start;
    foreach my $c (hex("0x$start") .. hex("0x$end")) {
	$prop{$c} = $prop;
    }
}
close $gcb;

foreach my $c (@codes) {
    my $prop = $prop{$c};
    my $name = $name{$c};
    my $gc = $gc{$c};

    # Custom GCB Virama
    if ($Virama{$c}) {
	if ($prop =~ /^(Extend|SpacingMark)$/) {
	    $prop = 'Virama';
	} else {
	    die sprintf "U+%04X is virama and %s", $c, $prop;
	}
    } elsif ($GC_Letter{$c} and $Brahmic{$c}) {
	if ($prop) {
	    warn sprintf
		"(non-fatal) U+%04X: GB=%s; won't assign OtherLetter.\n",
		$c, $prop;
	} else {
	    $prop = 'OtherLetter';
	}
    }

    printf "%04X ; %-11s # %s %s\n", $c, $prop, $gc, $name
	unless $prop eq $prop{$c};
}


exit 0;