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|
#!/usr/bin/perl
sub utf8 ($) {
my $c = shift(@_);
if ($c < 0x80) {
return sprintf("%c", $c);
} elsif ($c < 0x800) {
return sprintf("%c%c", 0xc0 | ($c >> 6), 0x80 | ($c & 0x3f));
} elsif ($c < 0x10000) {
return sprintf("%c%c%c",
0xe0 | ($c >> 12),
0x80 | (($c >> 6) & 0x3f),
0x80 | ( $c & 0x3f));
} elsif ($c < 0x200000) {
return sprintf("%c%c%c%c",
0xf0 | ($c >> 18),
0x80 | (($c >> 12) & 0x3f),
0x80 | (($c >> 6) & 0x3f),
0x80 | ( $c & 0x3f));
} elsif ($c < 0x4000000) {
return sprintf("%c%c%c%c%c",
0xf8 | ($c >> 24),
0x80 | (($c >> 18) & 0x3f),
0x80 | (($c >> 12) & 0x3f),
0x80 | (($c >> 6) & 0x3f),
0x80 | ( $c & 0x3f));
} elsif ($c < 0x80000000) {
return sprintf("%c%c%c%c%c%c",
0xfe | ($c >> 30),
0x80 | (($c >> 24) & 0x3f),
0x80 | (($c >> 18) & 0x3f),
0x80 | (($c >> 12) & 0x3f),
0x80 | (($c >> 6) & 0x3f),
0x80 | ( $c & 0x3f));
} else {
return utf8(0xfffd);
}
}
sub append_translit {
my ($ucs, $t) = @_;
$ucs =~ /^[0-9A-F]{4}$/ || die("ERROR: append_translit('$ucs','$t')\n");
$t =~ /^([0-9A-F]{4})*$/ || die("ERROR: append_translit('$ucs','$t')\n");
#print STDERR "append_translit('$ucs','$t')\n";
if (!defined($trans{$ucs})) {
$trans{$ucs} = [];
}
push(@{$trans{$ucs}}, $t);
}
$unicodedata = "UnicodeData.txt";
$datadir = "$ENV{HOME}/local/lib/ucs";
# read list of all Unicode names
if (!open(UDATA, $unicodedata) && !open(UDATA, "$datadir/$unicodedata")) {
die ("Can't open Unicode database '$unicodedata':\n$!\n\n" .
"Please make sure that you have downloaded the file\n" .
"ftp://ftp.unicode.org/Public/UNIDATA/UnicodeData.txt\n");
}
while (<UDATA>) {
if (/^([0-9,A-F]{4,6});([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*);([^;]*)$/) {
$name{$1} = $2;
} else {
die("Syntax error in line '$_' in file '$unicodedata'");
}
}
close(UDATA);
while (<ARGV>) {
next if /^\s*[\%\#]/;
next if /^\s*$/;
if (/^([0-9a-fA-F]{4})\s*(\#.*)?$/) {
# uniset table format
$ucs = $1;
$ucs =~ tr/a-f/A-F/;
if (!$trans{$ucs}) {
append_translit($ucs, "");
}
} elsif (/^\s*<U([0-9a-fA-F]{4})>\s+(.*?)(\%.*)?$/) {
# ISO/IEC TR 14652 format
$ucs = $1;
$ucs =~ tr/a-f/A-F/;
$_ = $2;
while (1) {
if (/^<U([0-9a-fA-F]{4})>;?(.*)$/) {
$t = $1;
$t =~ tr/a-f/A-F/;
$_=$2;
append_translit($ucs, $t);
} elsif (/^\"((?:<U[0-9a-fA-F]{4}>)*)\";?(.*)$/) {
$t = $1;
$_ = $2;
$t =~ tr/a-f/A-F/;
$t =~ s/<U//g;
$t =~ s/>//g;
append_translit($ucs, $t);
} elsif (/^\"([^<\"]+)\";?(.*)$/) {
$_ = $2;
$t = "";
for ($i = 0; $i < length($1); $i++) {
$t .= sprintf("%04X", ord(substr($1,$i,1)));
}
append_translit($ucs, $t);
} elsif (/^\s*\%/ || /^\s*$/) {
last;
} else {
die("parsing problem: '$_'\n");
}
}
} elsif (/^U\+([0-9a-fA-F]{4}):(.*)$/ ||
/^U\+([0-9a-fA-F]{4})\s*\"(.*)\"\s*(\#.*)?$/) {
# Lynx format
$ucs = $1;
$ucs =~ tr/a-f/A-F/;
$t = "";
for ($i = 0; $i < length($2); $i++) {
$t .= sprintf("%04X", ord(substr($2,$i,1)));
}
append_translit($ucs, $t);
} elsif (/0x([0-9a-fA-F]{2})\s*(.*?)\s*(\#.*)?$/) {
# Lynx format
$t = hex($1);
$_=$2;
while ($_) {
if (/^U\+([0-9a-fA-F]{4})-U\+([0-9a-fA-F]{4})\s*(.*)$/) {
$ucs1=$1;
$ucs2=$2;
$_=$3;
for ($ucs=hex($ucs1); $ucs <= hex($ucs2); $ucs++) {
append_translit(sprintf("%04X", $ucs),
sprintf("%04X", $t));
}
} elsif (/^U\+([0-9a-fA-F]{4})\s*(.*)$/) {
$_=$3;
append_translit(sprintf("%04X", hex($1)),
sprintf("%04X", $t));
} else {
print STDERR "Can't handle suffix: '$_'\n";
last;
}
}
} else {
print STDERR "Can't handle: $_";
}
}
$ENV{format} = iso if !$ENV{format};
if ($ENV{format} =~ /^iso/) {
# output in ISO/IEC DTR 14652 format
print "% \$Id: \$\n\n";
for $ucs (sort(keys(%trans))) {
print "% $name{$ucs}\n";
if ($ENV{format} eq isoutf) {
print "% " . utf8(hex($ucs)) . " -> ";
@l = @{$trans{$ucs}};
while ($t = shift @l) {
print "'";
while ($t =~ /^(....)/) {
$t = $';
print utf8(hex($1));
}
print "'";
print ", " if @l;
}
print "\n";
}
print "<U$ucs> ";
@l = @{$trans{$ucs}};
while (defined($t = shift @l)) {
if (length($t) == 4) {
print "<U$t>";
} else {
$t =~ s/(....)/<U$1>/g;
print "\"$t\"";
}
print ";" if @l;
}
print "\n";
}
}
if ($ENV{format} eq utf) {
for $ucs (sort(keys(%trans))) {
print "U+$ucs # " . utf8(hex($ucs)) . " -> ";
@l = @{$trans{$ucs}};
while ($t = shift @l) {
print "'";
while ($t =~ /^(....)/) {
$t = $';
print utf8(hex($1));
}
print "'";
print ", " if @l;
}
print "\n";
}
}
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