feat: export locale_display_pattern

lib/cldr/export/data.rb

@@ -19,6 +19,7 @@ module Data
       autoload :Layout,                    "cldr/export/data/layout"
       autoload :LikelySubtags,             "cldr/export/data/likely_subtags"
       autoload :Lists,                     "cldr/export/data/lists"
+      autoload :LocaleDisplayPattern,      "cldr/export/data/locale_display_pattern"
       autoload :Metazones,                 "cldr/export/data/metazones"
       autoload :NumberingSystems,          "cldr/export/data/numbering_systems"
       autoload :Numbers,                   "cldr/export/data/numbers"

lib/cldr/export/data/locale_display_pattern.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+module Cldr
+  module Export
+    module Data
+      class LocaleDisplayPattern < Base
+        def initialize(locale)
+          super
+          update(locale_display_pattern: locale_display_pattern)
+        end
+
+        private
+
+        def locale_display_pattern
+          @locale_display_pattern ||= select("localeDisplayNames/localeDisplayPattern/*").each_with_object({}) do |node, result|
+            result[node.name.underscore] = node.content
+          end
+        end
+      end
+    end
+  end
+end

test/export/data/locale_display_pattern_test.rb

@@ -0,0 +1,18 @@
+# encoding: utf-8
+# frozen_string_literal: true
+
+require File.expand_path(File.join(File.dirname(__FILE__) + "/../../test_helper"))
+
+class TestLocaleDisplayPattern < Test::Unit::TestCase
+  test "locale_display_pattern :de" do
+    expected = {
+      "locale_key_type_pattern" => "{0}: {1}",
+      "locale_pattern" => "{0} ({1})",
+      "locale_separator" => "{0}, {1}",
+    }
+
+    actual = Cldr::Export::Data::LocaleDisplayPattern.new(:de)[:locale_display_pattern]
+
+    assert_equal expected, actual
+  end
+end