1 files changed, 108 insertions, 0 deletions
diff --git a/intl/locale/cldr-quotes.pl b/intl/locale/cldr-quotes.pl
new file mode 100644
index 0000000000..76b91fd5a4
--- /dev/null
+++ b/intl/locale/cldr-quotes.pl
@@ -0,0 +1,108 @@
+# 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/.
+
+# Tool to generate the cldr-quotes.inc file, to be #include'd in Quotes.cpp
+# to provide locale-appropriate opening and closing quote marks.
+
+# To regenerate cldr-quotes.inc for a new CLDR release, download the data file
+# "cldr-common-##.zip" from http://unicode.org/Public/cldr/latest into the
+# current directory, run
+#
+#   perl cldr-quotes.pl <filename>  > cldr-quotes.inc
+#
+# (where <filename> is the downloaded cldr-common-## archive), and
+# then use `hg diff` to check that the result looks sane.
+
+use warnings;
+use strict;
+
+use Encode;
+use IO::Uncompress::Unzip "unzip";
+
+die "Usage: perl cldr-quotes.pl <filename>" unless $#ARGV == 0;
+
+my $filename = $ARGV[0];
+
+my (%langQuotes, %quoteLangs);
+
+my $zip = IO::Uncompress::Unzip->new($filename) ||
+  die "unzip failed: $IO::Uncompress::Unzip::UnzipError\n";
+
+my $status = 1;
+while ($status > 0) {
+  my $name = $zip->getHeaderInfo()->{Name};
+  if ($name =~ m@common/main/([A-Za-z0-9_]+)\.xml@) {
+    my $lang = $1;
+    $lang =~ s/_/-/;
+    while (<$zip>) {
+      $langQuotes{$lang}[0] = $1 if (m!<quotationStart>(.+)<!);
+      $langQuotes{$lang}[1] = $1 if (m!<quotationEnd>(.+)<!);
+      $langQuotes{$lang}[2] = $1 if (m!<alternateQuotationStart>(.+)<!);
+      $langQuotes{$lang}[3] = $1 if (m!<alternateQuotationEnd>(.+)<!);
+    }
+  }
+  $status = $zip->nextStream();
+}
+$zip->close;
+
+foreach my $lang (sort keys %langQuotes) {
+  # We don't actually want to emit anything for the root locale
+  next if $lang eq "root";
+
+  # Inherit any missing entries from the locale's parent
+  my $parent = $lang;
+  while ($parent =~ m/\-/) {
+    # Strip off a trailing subtag to find a parent locale code
+    $parent =~ s/\-[^-]+$//;
+    # Fill in any values available from the parent
+    for (my $i = 0; $i < 4; $i++) {
+      $langQuotes{$lang}[$i] = $langQuotes{$parent}[$i] unless $langQuotes{$lang}[$i];
+    }
+  }
+
+  # Anything still missing is copied from the root locale
+  for (my $i = 0; $i < 4; $i++) {
+    $langQuotes{$lang}[$i] = $langQuotes{"root"}[$i] unless $langQuotes{$lang}[$i];
+  }
+
+  # If the locale ends up the same as its parent, skip
+  next if ($parent ne $lang) && (exists $langQuotes{$parent}) &&
+    (join(",", @{$langQuotes{$lang}}) eq join(",", @{$langQuotes{$parent}}));
+
+  # Create a string with the C source form for the array of 4 quote characters
+  my $quoteChars = join(", ", map { sprintf("0x%x", ord Encode::decode("UTF-8", $_)) } @{$langQuotes{$lang}});
+
+  # Record this locale in the list of those which use this particular set of quotes
+  $quoteLangs{$quoteChars} = [] unless exists $quoteLangs{$quoteChars};
+  push @{$quoteLangs{$quoteChars}}, $lang;
+}
+
+# Output each unique list of quotes, with the string of associated locales
+my $timestamp = gmtime();
+print <<__EOT__;
+/* 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/. */
+
+/*
+ * Derived from the Unicode Common Locale Data Repository by cldr-quotes.pl.
+ *
+ * For terms of use, see http://www.unicode.org/copyright.html.
+ */
+
+/*
+ * Created on $timestamp from CLDR data file $filename.
+ *
+ * * * * * This file contains MACHINE-GENERATED DATA, do not edit! * * * * *
+ *
+ * (generated by intl/locale/cldr-quotes.pl)
+ */
+
+__EOT__
+
+print "static const LangQuotesRec sLangQuotes[] = {\n";
+print "  // clang-format off\n";
+print sort map { sprintf("  { \"%s\\0\", { { %s } } },\n", join("\\0", sort @{$quoteLangs{$_}}), $_) } (keys %quoteLangs);
+print "  // clang-format on\n";
+print "};\n";