use I18n

Author: Tomo Matsumoto

config/locales/en.yml

@@ -0,0 +1,52 @@
+en:
+  ice_cube:
+    times:
+      other: '%{count} times'
+      one: '%{count} time'
+    days_of_month:
+      other: '%{segments} days of the month'
+      one: '%{segments} day of the month'
+    days_of_year:
+      other: '%{segments} days of the year'
+      one: '%{segments} day of the year'
+    at_hours_of_the_day:
+      other: on the %{segments} hours of the day
+      one: on the %{segments} hour of the day
+    on_minutes_of_hour:
+      other: on the %{segments} minutes of the hour
+      one: on the %{segments} minute of the hour
+    at_seconds_of_minute:
+      other: at the %{segments} seconds
+      one: at the %{segments} second
+    on_seconds_of_minute:
+      other: on the %{segments} seconds of the minute
+      one: on the %{segments} second of the minute
+    'on': on the %{sentence}
+    in: in
+    integer:
+      negative: '%{ordinal} to last'
+      literal_ordinals:
+        -1: last
+        -2: 2nd to last
+      ordinals:
+        default: th
+        1: st
+        2: nd
+        3: rd
+        11: th
+        12: th
+        13: th
+    on_weekends: on Weekends
+    on_weekdays: on Weekdays
+    days_on:
+      - Sundays
+      - Mondays
+      - Tuesdays
+      - Wednesdays
+      - Thursdays
+      - Fridays
+      - Saturdays
+    on_days: on %{days}
+  support:
+    array:
+      two_words_connector: ' and '

ice_cube.gemspec

@@ -21,4 +21,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency('rspec', '~> 2.12.0')
   s.add_development_dependency('activesupport', '>= 3.0.0')
   s.add_development_dependency('tzinfo')
+  s.add_development_dependency('i18n')
 end

lib/ice_cube.rb

@@ -1,5 +1,8 @@
 require 'date'
 require 'ice_cube/deprecated'
+require 'i18n'
+
+I18n.load_path += Dir[File.expand_path('../../config/locales/*{rb,yml}', __FILE__)]
 
 module IceCube
 

lib/ice_cube/builders/string_builder.rb

@@ -34,9 +34,6 @@ def self.register_formatter(type, &formatter)
 
     module Helpers
 
-      NUMBER_SUFFIX = ['th', 'st', 'nd', 'rd', 'th', 'th', 'th', 'th', 'th', 'th']
-      SPECIAL_SUFFIX = { 11 => 'th', 12 => 'th', 13 => 'th', 14 => 'th' }
-
       # influenced by ActiveSupport's to_sentence
       def sentence(array)
         case array.length
@@ -48,13 +45,22 @@ def sentence(array)
       end
 
       def nice_number(number)
-        return 'last' if number == -1
-        suffix = SPECIAL_SUFFIX[number] || NUMBER_SUFFIX[number.abs % 10]
-        if number < -1
-          number.abs.to_s << suffix << ' to last'
-        else
-          number.to_s << suffix
-        end
+        literal_ordinal(number) || ordinalize(number)
+      end
+
+      def ordinalize(number)
+        "#{number}#{ordinal(number)}"
+      end
+
+      def literal_ordinal(number)
+        I18n.t("ice_cube.integer.literal_ordinals")[number]
+      end
+
+      def ordinal(number)
+        ord = I18n.t("ice_cube.integer.ordinals")[number] ||
+          I18n.t("ice_cube.integer.ordinals")[number % 10] ||
+          I18n.t('ice_cube.integer.ordinals')[:default]
+        number >= 0 ? ord : I18n.t("ice_cube.integer.negative", ordinal: ord)
       end
 
     end

lib/ice_cube/validations/count.rb

@@ -51,7 +51,7 @@ def build_ical(builder)
 
       StringBuilder.register_formatter(:count) do |segments|
         count = segments.first
-        "#{count} #{count == 1 ? 'time' : 'times'}"
+        I18n.t('ice_cube.times', count: count)
       end
 
     end

lib/ice_cube/validations/day.rb

@@ -54,12 +54,13 @@ def build_ical(builder)
         validation_days.sort!
         # pick the right shortening, if applicable
         if validation_days == [0, 6]
-          'on Weekends'
+          I18n.t('ice_cube.on_weekends')
         elsif validation_days == (1..5).to_a
-          'on Weekdays'
+          I18n.t('ice_cube.on_weekdays')
         else
-          segments = validation_days.map { |d| "#{Date::DAYNAMES[d]}s" }
-          "on #{StringBuilder.sentence(segments)}"
+          day_names = ->(d){ "#{I18n.t("ice_cube.days_on")[d]}" }
+          segments = validation_days.map(&day_names)
+          I18n.t('ice_cube.on_days', days: StringBuilder.sentence(segments))
         end
       end
 

lib/ice_cube/validations/day_of_month.rb

@@ -43,9 +43,9 @@ def build_ical(builder)
       end
 
       StringBuilder.register_formatter(:day_of_month) do |entries|
-        str = "on the #{StringBuilder.sentence(entries)} "
-        str << (entries.size == 1 ? 'day of the month' : 'days of the month')
-        str
+        sentence = StringBuilder.sentence(entries)
+        str = I18n.t('ice_cube.days_of_month', count: entries.size, segments: sentence)
+        I18n.t('ice_cube.on', sentence: str)
       end
 
     end

lib/ice_cube/validations/day_of_week.rb

@@ -62,7 +62,8 @@ def build_ical(builder)
       end
 
       StringBuilder.register_formatter(:day_of_week) do |segments|
-        'on the ' + segments.join(' and ')
+        sentence = segments.join(I18n.t('support.array.two_words_connector'))
+        I18n.t('ice_cube.on', sentence: sentence)
       end
 
     end

lib/ice_cube/validations/day_of_year.rb

@@ -49,9 +49,9 @@ def build_ical(builder)
       end
 
       StringBuilder.register_formatter(:day_of_year) do |entries|
-        str = "on the #{StringBuilder.sentence(entries)} "
-        str << (entries.size == 1 ? 'day of the year' : 'days of the year')
-        str
+        str =  StringBuilder.sentence(entries)
+        sentence = I18n.t('ice_cube.days_of_year', count: entries.size, segments: str)
+        I18n.t('ice_cube.on', sentence: sentence)
       end
 
     end

lib/ice_cube/validations/hour_of_day.rb

@@ -44,8 +44,8 @@ def build_ical(builder)
       end
 
       StringBuilder.register_formatter(:hour_of_day) do |segments|
-        str = "on the #{StringBuilder.sentence(segments)} "
-        str << (segments.size == 1 ? 'hour of the day' : 'hours of the day')
+        str = StringBuilder.sentence(segments)
+        I18n.t('ice_cube.at_hours_of_the_day', count: segments.size, segments: str)
       end
 
     end