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-rwxr-xr-xintl/unicharutil/tools/genSpecialCasingData.pl309
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diff --git a/intl/unicharutil/tools/genSpecialCasingData.pl b/intl/unicharutil/tools/genSpecialCasingData.pl
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+#!/usr/bin/env perl
+
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this file,
+# You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# This tool is used to extract "special" (one-to-many) case mappings
+# into a form that can be used by nsTextRunTransformations.
+
+use strict;
+
+if ($#ARGV != 1) {
+ print <<__EOT;
+# Run this tool using a command line of the form
+#
+# perl genSpecialCasingData.pl UnicodeData.txt SpecialCasing.txt
+#
+# The nsSpecialCasingData.cpp file will be written to standard output.
+#
+# This tool will also write up-to-date versions of the test files
+# all-{upper,lower,title}.html
+# and corresponding -ref files in the current directory.
+#
+__EOT
+ exit 0;
+}
+
+my %allLower;
+my %allUpper;
+my %allTitle;
+my %compositions;
+my %gc;
+open FH, "< $ARGV[0]" or die "can't open $ARGV[0] (should be UnicodeData.txt)\n";
+while (<FH>) {
+ chomp;
+ my @fields = split /;/;
+ next if ($fields[1] =~ /</); # ignore ranges etc
+ my $usv = hex "0x$fields[0]";
+ $allUpper{$usv} = $fields[12] if $fields[12] ne '';
+ $allLower{$usv} = $fields[13] if $fields[13] ne '';
+ $allTitle{$usv} = $fields[14] if $fields[14] ne '';
+ $gc{$usv} = $fields[2];
+ # we only care about non-singleton canonical decomps
+ my $decomp = $fields[5];
+ next if $decomp eq '' or $decomp =~ /</ or not $decomp =~ / /;
+ $compositions{$decomp} = sprintf("%04X", $usv);
+}
+close FH;
+
+my %specialLower;
+my %specialUpper;
+my %specialTitle;
+my %charName;
+my @headerLines;
+open FH, "< $ARGV[1]" or die "can't open $ARGV[1] (should be SpecialCasing.txt)\n";
+while (<FH>) {
+ chomp;
+ m/#\s*(.+)$/;
+ my $comment = $1;
+ if ($comment =~ /^(SpecialCasing-|Date:)/) {
+ push @headerLines, $comment;
+ next;
+ }
+ s/#.*//;
+ s/;\s*$//;
+ next if $_ eq '';
+ my @fields = split /; */;
+ next unless (scalar @fields) == 4;
+ my $usv = hex "0x$fields[0]";
+ addIfSpecial(\%specialLower, $usv, $fields[1]);
+ addIfSpecial(\%specialTitle, $usv, $fields[2]);
+ addIfSpecial(\%specialUpper, $usv, $fields[3]);
+ $charName{$usv} = $comment;
+}
+close FH;
+
+print <<__END__;
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* Auto-generated from files in the Unicode Character Database
+ by genSpecialCasingData.pl - do not edit! */
+
+#include "nsSpecialCasingData.h"
+#include "mozilla/ArrayUtils.h" // for ArrayLength
+#include <stdlib.h> // for bsearch
+
+__END__
+map { print "/* $_ */\n" } @headerLines;
+
+print <<__END__;
+
+using mozilla::unicode::MultiCharMapping;
+
+__END__
+
+printMappings('Lower', \%specialLower);
+printMappings('Upper', \%specialUpper);
+printMappings('Title', \%specialTitle);
+
+print <<__END__;
+static int CompareMCM(const void* aKey, const void* aElement)
+{
+ const uint32_t ch = *static_cast<const uint32_t*>(aKey);
+ const MultiCharMapping* mcm = static_cast<const MultiCharMapping*>(aElement);
+ return int(ch) - int(mcm->mOriginalChar);
+}
+
+#define MAKE_SPECIAL_CASE_ACCESSOR(which) \\
+ const MultiCharMapping* \\
+ Special##which(uint32_t aChar) \\
+ { \\
+ const void* p = bsearch(&aChar, CaseSpecials_##which, \\
+ mozilla::ArrayLength(CaseSpecials_##which), \\
+ sizeof(MultiCharMapping), CompareMCM); \\
+ return static_cast<const MultiCharMapping*>(p); \\
+ }
+
+namespace mozilla {
+namespace unicode {
+
+MAKE_SPECIAL_CASE_ACCESSOR(Lower)
+MAKE_SPECIAL_CASE_ACCESSOR(Upper)
+MAKE_SPECIAL_CASE_ACCESSOR(Title)
+
+} // namespace unicode
+} // namespace mozilla
+__END__
+
+addSpecialsTo(\%allLower, \%specialLower);
+addSpecialsTo(\%allUpper, \%specialUpper);
+addSpecialsTo(\%allTitle, \%specialTitle);
+
+my $testFont = "../fonts/dejavu-sans/DejaVuSans.ttf";
+genTest('lower', \%allLower);
+genTest('upper', \%allUpper);
+genTitleTest();
+
+sub printMappings {
+ my ($whichMapping, $hash) = @_;
+ print "static const MultiCharMapping CaseSpecials_${whichMapping}[] = {\n";
+ foreach my $key (sort { $a <=> $b } keys %$hash) {
+ my @chars = split(/ /, $hash->{$key});
+ printf " { 0x%04x, {0x%04x, 0x%04x, 0x%04x} }, // %s\n", $key,
+ hex "0x0$chars[0]", hex "0x0$chars[1]", hex "0x0$chars[2]",
+ "$charName{$key}";
+ }
+ print "};\n\n";
+};
+
+sub addIfSpecial {
+ my ($hash, $usv, $mapping) = @_;
+ return unless $mapping =~ / /;
+ # only do compositions that start with the initial char
+ foreach (keys %compositions) {
+ $mapping =~ s/^$_/$compositions{$_}/;
+ }
+ $hash->{$usv} = $mapping;
+};
+
+sub addSpecialsTo {
+ my ($hash, $specials) = @_;
+ foreach my $key (keys %$specials) {
+ $hash->{$key} = $specials->{$key};
+ }
+};
+
+sub genTest {
+ my ($whichMapping, $hash) = @_;
+ open OUT, "> all-$whichMapping.html";
+ print OUT <<__END__;
+<!DOCTYPE html>
+<!-- GENERATED FILE, DO NOT EDIT -->
+<html>
+ <head>
+ <meta http-equiv="Content-type" content="text/html; charset=utf-8">
+ <style type="text/css">
+ \@font-face { font-family: foo; src: url($testFont); }
+ p { font-family: foo; font-size: 12px; text-transform: ${whichMapping}case; }
+ </style>
+ </head>
+ <body>
+ <p>
+__END__
+ foreach my $key (sort { $a <=> $b } keys %$hash) {
+ # Bug 1476304: we exclude Georgian letters U+10D0..10FF because of lack
+ # of widespread font support for the corresponding Mtavruli characters
+ # at this time (July 2018).
+ # This condition is to be removed once the major platforms ship with
+ # fonts that support U+1C90..1CBF.
+ my $skippedGeorgian = $whichMapping eq "upper" && $key >= 0x10D0 && $key <= 0x10FF;
+ print OUT "<!-- " if $skippedGeorgian;
+ printf OUT "&#x%04X;", $key;
+ print OUT " -->" if $skippedGeorgian;
+ print OUT " <!-- $charName{$key} -->" if exists $charName{$key};
+ print OUT " <!-- Temporarily skipped, see bug 1476304. -->" if $skippedGeorgian;
+ print OUT "\n";
+ }
+ print OUT <<__END__;
+ </p>
+ </body>
+</html>
+__END__
+ close OUT;
+
+ open OUT, "> all-$whichMapping-ref.html";
+ print OUT <<__END__;
+<!DOCTYPE html>
+<!-- GENERATED FILE, DO NOT EDIT -->
+<html>
+ <head>
+ <meta http-equiv="Content-type" content="text/html; charset=utf-8">
+ <style type="text/css">
+ \@font-face { font-family: foo; src: url($testFont); }
+ p { font-family: foo; font-size: 12px; }
+ </style>
+ </head>
+ <body>
+ <p>
+__END__
+ foreach my $key (sort { $a <=> $b } keys %$hash) {
+ # Bug 1476304: we exclude Georgian letters U+10D0..10FF because of lack
+ # of widespread font support for the corresponding Mtavruli characters
+ # at this time (July 2018).
+ # This condition is to be removed once the major platforms ship with
+ # fonts that support U+1C90..1CBF.
+ my $skippedGeorgian = $whichMapping eq "upper" && $key >= 0x10D0 && $key <= 0x10FF;
+ print OUT "<!-- " if $skippedGeorgian;
+ print OUT join('', map { sprintf("&#x%s;", $_) } split(/ /, $hash->{$key}));
+ print OUT " -->" if $skippedGeorgian;
+ print OUT " <!-- $charName{$key} -->" if exists $charName{$key};
+ print OUT " <!-- Temporarily skipped, see bug 1476304. -->" if $skippedGeorgian;
+ print OUT "\n";
+ }
+ print OUT <<__END__;
+ </p>
+ </body>
+</html>
+__END__
+ close OUT;
+};
+
+sub genTitleTest {
+ open OUT, "> all-title.html";
+ print OUT <<__END__;
+<!DOCTYPE html>
+<!-- GENERATED FILE, DO NOT EDIT -->
+<html>
+ <head>
+ <meta http-equiv="Content-type" content="text/html; charset=utf-8">
+ <style type="text/css">
+ \@font-face { font-family: foo; src: url($testFont); }
+ p { font-family: foo; text-transform: capitalize; }
+ </style>
+ </head>
+ <body>
+ <p>
+__END__
+ foreach my $key (sort { $a <=> $b } keys %allTitle) {
+ printf OUT "&#x%04X;x", $key;
+ print OUT " <!-- $charName{$key} -->" if exists $charName{$key};
+ print OUT "\n";
+ }
+ print OUT <<__END__;
+ </p>
+ </body>
+</html>
+__END__
+ close OUT;
+
+ open OUT, "> all-title-ref.html";
+ print OUT <<__END__;
+<!DOCTYPE html>
+<!-- GENERATED FILE, DO NOT EDIT -->
+<html>
+ <head>
+ <meta http-equiv="Content-type" content="text/html; charset=utf-8">
+ <style type="text/css">
+ \@font-face { font-family: foo; src: url($testFont); }
+ p { font-family: foo; }
+ </style>
+ </head>
+ <body>
+ <p>
+__END__
+ foreach my $key (sort { $a <=> $b } keys %allTitle) {
+ # capitalize is only applied to characters with GC=L* or N*...
+ if ($gc{$key} =~ /^[LN]/) {
+ # ...and those that are already uppercase are not transformed
+ if (exists $allUpper{$key}) {
+ print OUT join('', map { sprintf("&#x%s;", $_) } split(/ /, $allTitle{$key}));
+ } else {
+ printf OUT "&#x%04X;", $key;
+ }
+ print OUT "x";
+ } else {
+ printf OUT "&#x%04X;X", $key;
+ }
+ print OUT " <!-- $charName{$key} -->" if exists $charName{$key};
+ print OUT "\n";
+ }
+ print OUT <<__END__;
+ </p>
+ </body>
+</html>
+__END__
+ close OUT;
+};