#! /usr/bin/perl -w
#
-# Generate a two-level table describing (some of) the fields of UnicodeData.txt
+# This file is part of DisOrder.
+# Copyright (C) 2007 Richard Kettlewell
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+# USA
+#
+#
+# Generate Unicode support tables
+#
+# This script will download data from unicode.org if the required files
+# aren't in the current directory.
+#
+# After modifying this script you should run:
+# make -C lib rebuild-unicode check
+#
+# Things not supported yet:
+# - SpecialCasing.txt data for case mapping
+# - Title case offsets
+# - Some kind of hinting for composition
+# - ...
+#
+# NB the generated files DO NOT offer a stable ABI and so are not immediately
+# suitable for use in a general-purpose library. Things that would need to
+# be done:
+# - Hide unidata.h from applications; it will never be ABI- or even API-stable.
+# - Stablized General_Category values
+# - Extend the unicode.h API to general utility rather than just what
+# DisOrder needs.
+# - ...
+#
use strict;
+use File::Basename;
sub out {
print @_ or die "$!\n";
return join("-", map($d->{$_}, sort keys %$d));
}
+# Size of a subtable
+#
+# This can be varied to trade off the number of subtables against their size.
+# 16 gave the smallest results last time I checked (on a Mac with a 32-bit
+# build).
+our $modulus = 16;
+
+if(@ARGV) {
+ $modulus = shift;
+}
+
+# Where to break the table. There is a huge empty section of the Unicode
+# code space and we deal with this by simply leaving it out of the table.
+# This complicates the lookup function a little but should not affect
+# performance in the cases we care about.
+our $break_start = 0x30000;
+our $break_end = 0xE0000;
+
+# Similarly we simply omit the very top of the table and sort it out in the
+# lookup function.
+our $break_top = 0xE0200;
+
my %cats = (); # known general categories
my %data = (); # mapping of codepoints to information
-my %comp = (); #
my $max = 0; # maximum codepoint
+my $maxccc = 0; # maximum combining class
+my $maxud = 0;
+my $minud = 0; # max/min upper case offset
+my $maxld = 0;
+my $minld = 0; # max/min lower case offset
+# Make sure we have our desired input files. We explicitly specify a
+# Unicode standard version to make sure that a given version of DisOrder
+# supports a given version of Unicode.
+sub input {
+ my $path = shift;
+ my $lpath = basename($path);
+ if(!-e $lpath) {
+ system("wget http://www.unicode.org/Public/5.0.0/ucd/$path");
+ chmod(0444, $lpath) or die "$lpath: $!\n";
+ }
+ open(STDIN, "<$lpath") or die "$lpath: $!\n";
+ print STDERR "Reading $lpath...\n";
+}
+
+
+# Read the main data file
+input("UnicodeData.txt");
+my ($start, $end);
+my $maxcompat = 0;
+my $maxcanon = 0;
+my $hangul_syllable_decomps = 0;
+my $hangul_choseong_decomps = 0;
while(<>) {
my @f = split(/;/, $_);
my $c = hex($f[0]); # codepoint
- next if $c >= 0xE0000; # ignore various high-numbered stuff
my $name = $f[1];
- my $gc = $f[2]; # general category
- my $ccc = $f[3]; # canonical combining class
- my $sum = hex($f[12]) || $c; # simple upper case mapping
- my $slm = hex($f[13]) || $c; # simple lower case mapping
+ die "$f[0] $name is in the break\n"
+ if $c >= $break_start && $c < $break_end;
+ my $gc = $f[2]; # General_Category
+ # Variuos GCs we don't expect to see in UnicodeData.txt
+ $cats{$gc} = 1; # always record all GCs
+ if($name =~ /first>/i) {
+ $start = $c;
+ next;
+ } elsif($name =~ /last>/i) {
+ $end = $c;
+ } else {
+ $start = $end = $c;
+ }
+ die "unexpected Cn" if $gc eq 'Cn';
+ my $ccc = $f[3]; # Canonical_Combining_Class
+ my $dm = $f[5]; # Decomposition_Type + Decomposition_Mapping
+ my $sum = hex($f[12]) || $c; # Simple_Uppercase_Mapping
+ my $slm = hex($f[13]) || $c; # Simple_Lowercase_Mapping
# recalculate the upper/lower case mappings as offsets
my $ud = $sum - $c;
my $ld = $slm - $c;
- $data{$c} = {
- "gc" => $gc,
- "ccc" => $ccc,
- "ud" => $ud,
- "ld" => $ld
+ # update bounds on various values
+ $maxccc = $ccc if $ccc > $maxccc; # assumed never to be -ve
+ $minud = $ud if $ud < $minud;
+ $maxud = $ud if $ud > $maxud;
+ $minld = $ld if $ld < $minld;
+ $maxld = $ld if $ld > $maxld;
+ if($start != $end) {
+ printf STDERR "> range %04X-%04X is %s\n", $start, $end, $gc;
+ }
+ for($c = $start; $c <= $end; ++$c) {
+ my $d = {
+ "gc" => $gc,
+ "ccc" => $ccc,
+ "ud" => $ud,
+ "ld" => $ld,
};
+ if($dm ne '') {
+ my $maxref;
+ if($dm =~ /</) {
+ # This is a compatibility decomposition
+ $dm =~ s/^<.*>\s*//;
+ $d->{compat} = 1;
+ $maxref = \$maxcompat;
+ } else {
+ $maxref = \$maxcanon;
+ }
+ $d->{decomp} = [map(hex($_), split(/\s+/, $dm))];
+ my $len = scalar @{$d->{decomp}};
+ $$maxref = $len if $len > $$maxref;
+ if(!$d->{compat}) {
+ if(${$d->{decomp}}[0] >= 0xAC00 && ${$d->{decomp}}[0] <= 0xD7A3) {
+ ++$hangul_syllable_decomps;
+ }
+ if(${$d->{decomp}}[0] >= 0x1100 && ${$d->{decomp}}[0] <= 0x115F) {
+ ++$hangul_choseong_decomps;
+ }
+ }
+ }
+ $data{$c} = $d;
+ }
$cats{$gc} = 1;
- $max = $c if $c > $max;
+ $max = $end if $end > $max;
+}
+
+sub read_prop_with_ranges {
+ my $path = shift;
+ my $propkey = shift;
+ input($path);
+ while(<>) {
+ chomp;
+ s/\s*\#.*//;
+ next if $_ eq '';
+ my ($range, $propval) = split(/\s*;\s*/, $_);
+ if($range =~ /(.*)\.\.(.*)/) {
+ for my $c (hex($1) .. hex($2)) {
+ $data{$c}->{$propkey} = $propval;
+ }
+ } else {
+ my $c = hex($range);
+ $data{$c}->{$propkey} = $propval;
+ }
+ }
+}
+
+# Grapheme_Break etc
+read_prop_with_ranges("auxiliary/GraphemeBreakProperty.txt", "gbreak");
+read_prop_with_ranges("auxiliary/WordBreakProperty.txt", "wbreak");
+read_prop_with_ranges("auxiliary/SentenceBreakProperty.txt", "sbreak");
+
+# Compute the full list and fill in the Extend category properly
+my %gbreak = ();
+my %wbreak = ();
+my %sbreak = ();
+for my $c (keys %data) {
+ if(!exists $data{$c}->{gbreak}) {
+ $data{$c}->{gbreak} = 'Other';
+ }
+ $gbreak{$data{$c}->{gbreak}} = 1;
+
+ if(!exists $data{$c}->{wbreak}) {
+ if($data{$c}->{gbreak} eq 'Extend') {
+ $data{$c}->{wbreak} = 'Extend';
+ } else {
+ $data{$c}->{wbreak} = 'Other';
+ }
+ }
+ $wbreak{$data{$c}->{wbreak}} = 1;
+
+ if(!exists $data{$c}->{sbreak}) {
+ if($data{$c}->{gbreak} eq 'Extend') {
+ $data{$c}->{sbreak} = 'Extend';
+ } else {
+ $data{$c}->{sbreak} = 'Other';
+ }
+ }
+ $sbreak{$data{$c}->{sbreak}} = 1;
}
-$max += 255 - ($max % 256); # round up
+# Various derived properties
+input("DerivedNormalizationProps.txt");
+while(<>) {
+ chomp;
+ s/\s*\#.*//;
+ next if $_ eq '';
+ my @f = split(/\s*;\s*/, $_);
+ if(@f == 2) {
+ push(@f, 1);
+ }
+ my ($range, $propkey, $propval) = @f;
+ if($range =~ /(.*)\.\.(.*)/) {
+ for my $c (hex($1) .. hex($2)) {
+ $data{$c}->{$propkey} = $propval
+ }
+ } else {
+ my $c = hex($range);
+ $data{$c}->{$propkey} = $propval
+ }
+}
-# Make sure there are no gaps
+# Round up the maximum value to a whole number of subtables
+$max += ($modulus - 1) - ($max % $modulus);
+
+# Private use characters
+# We only fill in values below $max, utf32__unidata()
+my $Co = {
+ "gc" => "Co",
+ "ccc" => 0,
+ "ud" => 0,
+ "ld" => 0
+};
+for(my $c = 0xE000; $c <= 0xF8FF && $c <= $max; ++$c) {
+ $data{$c} = $Co;
+}
+for(my $c = 0xF0000; $c <= 0xFFFFD && $c <= $max; ++$c) {
+ $data{$c} = $Co;
+}
+for(my $c = 0x100000; $c <= 0x10FFFD && $c <= $max; ++$c) {
+ $data{$c} = $Co;
+}
+
+# Anything left is not assigned
+my $Cn = {
+ "gc" => "Cn", # not assigned
+ "ccc" => 0,
+ "ud" => 0,
+ "ld" => 0
+};
for(my $c = 0; $c <= $max; ++$c) {
if(!exists $data{$c}) {
- $data{$c} = {
- "gc" => "Cn", # not assigned
- "ccc" => 0,
- "ud" => 0,
- "ld" => 0
- };
+ $data{$c} = $Cn;
+ }
+ if(!exists $data{$c}->{wbreak}) {
+ $data{$c}->{wbreak} = 'Other';
+ }
+ if(!exists $data{$c}->{gbreak}) {
+ $data{$c}->{gbreak} = 'Other';
+ }
+ if(!exists $data{$c}->{sbreak}) {
+ $data{$c}->{sbreak} = 'Other';
}
}
$cats{'Cn'} = 1;
+# Read the casefolding data too
+input("CaseFolding.txt");
+while(<>) {
+ chomp;
+ next if /^\#/ or $_ eq '';
+ my @f = split(/\s*;\s*/, $_);
+ # Full case folding means use status C and F.
+ # We discard status T, Turkish users may wish to change this.
+ if($f[1] eq 'C' or $f[1] eq 'F') {
+ my $c = hex($f[0]);
+ $data{$c}->{casefold} = $f[2];
+ # We are particularly interest in combining characters that
+ # case-fold to non-combining characters, or characters that
+ # case-fold to sequences with combining characters in non-initial
+ # positions, as these required decomposiiton before case-folding
+ my @d = map(hex($_), split(/\s+/, $data{$c}->{casefold}));
+ if($data{$c}->{ccc} != 0) {
+ # This is a combining character
+ if($data{$d[0]}->{ccc} == 0) {
+ # The first character of its case-folded form is NOT
+ # a combining character. The field name is the example
+ # explicitly mentioned in the spec.
+ $data{$c}->{ypogegrammeni} = 1;
+ }
+ } else {
+ # This is a non-combining character; inspect the non-initial
+ # code points of the case-folded sequence
+ shift(@d);
+ if(grep($data{$_}->{ccc} != 0, @d)) {
+ # Some non-initial code point in the case-folded for is NOT a
+ # a combining character.
+ $data{$c}->{ypogegrammeni} = 1;
+ }
+ }
+ }
+}
+
+# Generate the header file
+print STDERR "Generating unidata.h...\n";
open(STDOUT, ">unidata.h") or die "unidata.h: $!\n";
-out("#ifndef UNIDATA_H\n",
+out("/* Automatically generated file, see scripts/make-unidata */\n",
+ "#ifndef UNIDATA_H\n",
"#define UNIDATA_H\n");
-out("enum unicode_gc_cat {\n",
+# TODO choose stable values for General_Category
+out("enum unicode_General_Category {\n",
+ join(",\n",
+ map(" unicode_General_Category_$_", sort keys %cats)), "\n};\n");
+
+out("enum unicode_Grapheme_Break {\n",
+ join(",\n",
+ map(" unicode_Grapheme_Break_$_", sort keys %gbreak)),
+ "\n};\n");
+out("extern const char *const unicode_Grapheme_Break_names[];\n");
+
+out("enum unicode_Word_Break {\n",
join(",\n",
- map(" unicode_gc_$_", sort keys %cats)), "\n};\n");
-
+ map(" unicode_Word_Break_$_", sort keys %wbreak)),
+ "\n};\n");
+out("extern const char *const unicode_Word_Break_names[];\n");
+
+out("enum unicode_Sentence_Break {\n",
+ join(",\n",
+ map(" unicode_Sentence_Break_$_", sort keys %sbreak)),
+ "\n};\n");
+out("extern const char *const unicode_Sentence_Break_names[];\n");
+
+out("enum unicode_flags {\n",
+ " unicode_normalize_before_casefold = 1,\n",
+ " unicode_compatibility_decomposition = 2\n",
+ "};\n",
+ "\n");
+
+# Choose the narrowest type that will fit the required values
+sub choosetype {
+ my ($min, $max) = @_;
+ if($min >= 0) {
+ return "char" if $max <= 127;
+ return "unsigned char" if $max <= 255;
+ return "int16_t" if $max < 32767;
+ return "uint16_t" if $max < 65535;
+ return "int32_t";
+ } else {
+ return "char" if $min >= -127 && $max <= 127;
+ return "int16_t" if $min >= -32767 && $max <= 32767;
+ return "int32_t";
+ }
+}
+
out("struct unidata {\n",
- " enum unicode_gc_cat gc;\n",
- " int ccc;\n",
- " int upper_offset;\n",
- " int lower_offset;\n",
+ # decomposition (canonical or compatibility;
+ # unicode_compatibility_decomposition distinguishes) or NULL
+ " const uint32_t *decomp;\n",
+
+ # case-folded string or NULL
+ " const uint32_t *casefold;\n",
+
+ # composed characters that start with this code point. This only
+ # includes primary composites, i.e. the decomposition mapping is
+ # canonical and this code point is not in the exclusion table.
+ " const uint32_t *composed;\n",
+
+# " ".choosetype($minud, $maxud)." upper_offset;\n",
+# " ".choosetype($minld, $maxld)." lower_offset;\n",
+
+ # canonical combining class
+ " ".choosetype(0, $maxccc)." ccc;\n",
+ " char general_category;\n",
+
+ # see unicode_flags enum
+ " uint8_t flags;\n",
+ " char grapheme_break;\n",
+ " char word_break;\n",
+ " char sentence_break;\n",
"};\n");
+# decomp and casefold do have have non-BMP characters, so we
+# can't use a simple 16-bit table. We could use UTF-8 or UTF-16
+# though, saving a bit of space (probably not that much...) at the
+# cost of marginally reduced performance and additional complexity
out("extern const struct unidata *const unidata[];\n");
+out("extern const struct unicode_utf8_row {\n",
+ " uint8_t count;\n",
+ " uint8_t min2, max2;\n",
+ "} unicode_utf8_valid[];\n");
+
out("#define UNICODE_NCHARS ", ($max + 1), "\n");
+out("#define UNICODE_MODULUS $modulus\n");
+out("#define UNICODE_BREAK_START $break_start\n");
+out("#define UNICODE_BREAK_END $break_end\n");
+out("#define UNICODE_BREAK_TOP $break_top\n");
out("#endif\n");
close STDOUT or die "unidata.h: $!\n";
+print STDERR "Generating unidata.c...\n";
open(STDOUT, ">unidata.c") or die "unidata.c: $!\n";
-out("#include \"unidata.h\"\n");
+out("/* Automatically generated file, see scripts/make-unidata */\n",
+ "#include <config.h>\n",
+ "#include \"types.h\"\n",
+ "#include \"unidata.h\"\n");
+
+# Short aliases to keep .c file small
-# Visit all the 256-character blocks in turn and generate the required
-# subtables
+out(map(sprintf("#define %s unicode_General_Category_%s\n", $_, $_),
+ sort keys %cats));
+out(map(sprintf("#define GB%s unicode_Grapheme_Break_%s\n", $_, $_),
+ sort keys %gbreak));
+out(map(sprintf("#define WB%s unicode_Word_Break_%s\n", $_, $_),
+ sort keys %wbreak));
+out(map(sprintf("#define SB%s unicode_Sentence_Break_%s\n", $_, $_),
+ sort keys %sbreak));
+out("#define NBC unicode_normalize_before_casefold\n");
+out("#define CD unicode_compatibility_decomposition\n");
+
+# Names for *_Break properties
+out("const char *const unicode_Grapheme_Break_names[] = {\n",
+ join(",\n",
+ map(" \"$_\"", sort keys %gbreak)),
+ "\n};\n");
+out("const char *const unicode_Word_Break_names[] = {\n",
+ join(",\n",
+ map(" \"$_\"", sort keys %wbreak)),
+ "\n};\n");
+out("const char *const unicode_Sentence_Break_names[] = {\n",
+ join(",\n",
+ map(" \"$_\"", sort keys %sbreak)),
+ "\n};\n");
+
+our $ddnum = 0;
+our $ddsaved = 0;
+our %ddnums = ();
+my $ddfirst = 1;
+out("static const uint32_t ");
+sub dedupe {
+ my $s = join(",", @_);
+ if(!exists $ddnums{$s}) {
+ if($ddfirst) {
+ $ddfirst = 0;
+ } else {
+ out(",\n");
+ }
+ out("dd$ddnum\[]={$s}");
+ $ddnums{$s} = $ddnum++;
+ } else {
+ ++$ddsaved;
+ }
+ return "dd$ddnums{$s}";
+}
+
+# Generate the decomposition mapping tables.
+print STDERR "> decomposition mappings\n";
+for(my $c = 0; $c <= $max; ++$c) {
+ if(exists $data{$c} && exists $data{$c}->{decomp}) {
+ $data{$c}->{decompsym} = dedupe(@{$data{$c}->{decomp}}, 0);
+ }
+}
+
+print STDERR "> composition mappings\n";
+# First we must generate the mapping of each code point to possible
+# compositions.
+for(my $c = 0; $c <= $max; ++$c) {
+ if(exists $data{$c}
+ && exists $data{$c}->{decomp}
+ && !exists $data{$c}->{compat}
+ && !$data{$c}->{Full_Composition_Exclusion}) {
+ # $c has a non-excluded canonical decomposition, i.e. it is
+ # a primary composite. Find the first code point of the decomposition
+ my $first = ${$data{$c}->{decomp}}[0];
+ if(!exists $data{$first}->{compose}) {
+ $data{$first}->{compose} = [$c];
+ } else {
+ push(@{$data{$first}->{compose}}, $c);
+ }
+ }
+}
+# Then we can generate the tables.
+for(my $c = 0; $c <= $max; ++$c) {
+ if(exists $data{$c} && exists $data{$c}->{compose}) {
+ $data{$c}->{compsym} = dedupe(@{$data{$c}->{compose}}, 0);
+ }
+}
+
+# The case folding table.
+print STDERR "> case-fold mappings\n";
+for(my $c = 0; $c <= $max; ++$c) {
+ if(exists $data{$c} && exists $data{$c}->{casefold}) {
+ $data{$c}->{cfsym} = dedupe(map(hex($_), split(/\s+/,
+ $data{$c}->{casefold})),
+ 0);
+ }
+}
+
+# End of de-dupable arrays
+out(";\n");
+
+# Visit all the $modulus-character blocks in turn and generate the
+# required subtables. As above we spot duplicates to save space. In
+# Unicode 5.0.0 with $modulus=128 and current table data this saves
+# 1372 subtables or at least three and a half megabytes on 32-bit
+# platforms.
+print STDERR "> subtables\n";
my %subtable = (); # base->subtable number
my %subtableno = (); # subtable number -> content
my $subtablecounter = 0; # counter for subtable numbers
-for(my $base = 0; $base <= $max; $base += 256) {
+my $subtablessaved = 0; # number of tables saved
+for(my $base = 0; $base <= $max; $base += $modulus) {
+ next if $base >= $break_start && $base < $break_end;
+ next if $base >= $break_top;
my @t;
- for(my $c = $base; $c <= $base + 255; ++$c) {
+ for(my $c = $base; $c < $base + $modulus; ++$c) {
my $d = $data{$c};
- push(@t,
- " { unicode_gc_$d->{gc}, $d->{ccc}, $d->{ud}, $d->{ld} }");
+ my $decompsym = ($data{$c}->{decompsym} or "0");
+ my $cfsym = ($data{$c}->{cfsym} or "0");
+ my $compsym = ($data{$c}->{compsym} or "0");
+ my @flags = ();
+ if($data{$c}->{ypogegrammeni}) {
+ push(@flags, "NBC");
+ }
+ if($data{$c}->{compat}) {
+ push(@flags, "CD");
+ }
+ my $flags = @flags ? join("|", @flags) : 0;
+ push(@t, "{".
+ join(",",
+ $decompsym,
+ $cfsym,
+ $compsym,
+# $d->{ud},
+# $d->{ld},
+ $d->{ccc},
+ $d->{gc},
+ $flags,
+ "GB$d->{gbreak}",
+ "WB$d->{wbreak}",
+ "SB$d->{sbreak}",
+ )."}");
}
my $t = join(",\n", @t);
if(!exists $subtable{$t}) {
- out("static const struct unidata subtable$subtablecounter\[] = {\n",
+ out(sprintf("/* %04X-%04X */\n", $base, $base + $modulus - 1));
+ out("static const struct unidata st$subtablecounter\[] = {\n",
"$t\n",
"};\n");
$subtable{$t} = $subtablecounter++;
+ } else {
+ ++$subtablessaved;
}
$subtableno{$base} = $subtable{$t};
}
-out("const struct unidata *const unidata[] = {\n");
-for(my $base = 0; $base <= $max; $base += 256) {
- out(" subtable$subtableno{$base},\n");
+print STDERR "> main table\n";
+out("const struct unidata *const unidata[]={\n");
+for(my $base = 0; $base <= $max; $base += $modulus) {
+ next if $base >= $break_start && $base < $break_end;
+ next if $base >= $break_top;
+ #out("st$subtableno{$base} /* ".sprintf("%04x", $base)." */,\n");
+ out("st$subtableno{$base},\n");
+}
+out("};\n");
+
+print STDERR "> UTF-8 table\n";
+out("const struct unicode_utf8_row unicode_utf8_valid[] = {\n");
+for(my $c = 0; $c <= 0x7F; ++$c) {
+ out(" { 1, 0, 0 }, /* $c */\n");
+}
+for(my $c = 0x80; $c < 0xC2; ++$c) {
+ out(" { 0, 0, 0 }, /* $c */\n");
+}
+for(my $c = 0xC2; $c <= 0xDF; ++$c) {
+ out(" { 2, 0x80, 0xBF }, /* $c */\n");
+}
+for(my $c = 0xE0; $c <= 0xE0; ++$c) {
+ out(" { 3, 0xA0, 0xBF }, /* $c */\n");
+}
+for(my $c = 0xE1; $c <= 0xEC; ++$c) {
+ out(" { 3, 0x80, 0xBF }, /* $c */\n");
+}
+for(my $c = 0xED; $c <= 0xED; ++$c) {
+ out(" { 3, 0x80, 0x9F }, /* $c */\n");
+}
+for(my $c = 0xEE; $c <= 0xEF; ++$c) {
+ out(" { 3, 0x80, 0xBF }, /* $c */\n");
+}
+for(my $c = 0xF0; $c <= 0xF0; ++$c) {
+ out(" { 4, 0x90, 0xBF }, /* $c */\n");
+}
+for(my $c = 0xF1; $c <= 0xF3; ++$c) {
+ out(" { 4, 0x80, 0xBF }, /* $c */\n");
+}
+for(my $c = 0xF4; $c <= 0xF4; ++$c) {
+ out(" { 4, 0x80, 0x8F }, /* $c */\n");
+}
+for(my $c = 0xF5; $c <= 0xFF; ++$c) {
+ out(" { 0, 0, 0 }, /* $c */\n");
}
out("};\n");
close STDOUT or die "unidata.c: $!\n";
-print STDERR "max=$max, subtables=$subtablecounter\n";
+print STDERR "Done.\n\n";
+printf STDERR "modulus=%d\n", $modulus;
+printf STDERR "max=%04X\n", $max;
+print STDERR "subtables=$subtablecounter, subtablessaved=$subtablessaved\n";
+print STDERR "ddsaved=$ddsaved\n";
+print STDERR "maxcompat=$maxcompat maxcanon=$maxcanon\n";
+print STDERR "$hangul_syllable_decomps canonical decompositions to Hangul syllables\n";
+print STDERR "$hangul_choseong_decomps canonical decompositions to Hangul Choseong\n";
+
+die "We assumed that canonical decompositions were never more than 2 long!\n"
+ if $maxcanon > 2;
+
+die "We assumed no canonical decompositions to Hangul syllables/Choseong!\n"
+ if $hangul_syllable_decomps || $hangul_choseong_decomps;