Add arabic locale, pluralization and tests; alpha ordered tests

lib/locales/ar.yml

@@ -0,0 +1,26 @@
+# :arabic pluralization (see https://github.com/ddnexus/pagy/blob/master/lib/locales/utils/p11n.rb)
+
+ar:
+  pagy:
+
+    item_name:
+      zero:
+      one: "عنصر"
+      two:
+      few:
+      many:
+      other: "عناصر"
+
+    nav:
+      prev: "‹ السابق"
+      next: "التالي ›"
+      gap: "…"
+
+    info:
+      no_items: "لا يوجد %{item_name}"
+      single_page: "عرض <b>%{count}</b> %{item_name}"
+      multiple_pages: "عرض %{item_name} <b>%{from}-%{to}</b> من اجمالي <b>%{count}</b>"
+
+    combo_nav_js: "الصفحة %{page_input} من %{pages}"
+
+    items_selector_js: "عرض %{items_input} %{item_name} لكل صفحة"

lib/locales/utils/p11n.rb

@@ -19,6 +19,20 @@
 p11n = {
   one_other: -> (n){ n == 1 ? 'one' : 'other' },    # default
 
+  arabic: lambda do |n|
+    n ||= 0
+    mod100 = n % 100
+
+    case
+    when n == 0                         then 'zero'      # rubocop:disable Style/NumericPredicate
+    when n == 1                         then 'one'
+    when n == 2                         then 'two'
+    when (3..10).to_a.include?(mod100)  then 'few'
+    when (11..99).to_a.include?(mod100) then 'many'
+    else                                     'other'
+    end
+  end,
+
   east_slavic: lambda do |n|
     n ||= 0
     mod10 = n % 10
@@ -32,14 +46,6 @@
     end
   end,
 
-  west_slavic: lambda do |n|
-    case n
-    when 1       then 'one'
-    when 2, 3, 4 then 'few'
-    else              'other'
-    end
-  end,
-
   one_two_other: lambda do |n|
     case n
     when 1 then 'one'
@@ -63,14 +69,24 @@
     when (from0to1 + from5to9).include?(mod10) || from12to14.include?(mod100) then 'many'
     else                                                                           'other'
     end
+  end,
+
+  west_slavic: lambda do |n|
+    case n
+    when 1       then 'one'
+    when 2, 3, 4 then 'few'
+    else              'other'
+    end
   end
+
 }
 
 # Hash of locale/pluralization pairs
 # It contains all the entries for all the locales defined as dictionaries.
 # The default pluralization for locales not explicitly listed here
 # is the :one_other pluralization proc (used for English)
 plurals = Hash.new(p11n[:one_other]).tap do |hash|
+  hash['ar']    = p11n[:arabic]
   hash['bs']    = p11n[:east_slavic]
   hash['cs']    = p11n[:west_slavic]
   hash['id']    = p11n[:other]

pagy.manifest

@@ -1,5 +1,6 @@
 lib/config/pagy.rb
 lib/javascripts/pagy.js
+lib/locales/ar.yml
 lib/locales/bg.yml
 lib/locales/bs.yml
 lib/locales/ca.yml

test/locales/utils/p11n_test.rb

@@ -7,6 +7,57 @@
 describe 'locales/utils/p11n' do
   let(:p11n) { eval(Pagy.root.join('locales', 'utils', 'p11n.rb').read)[1].freeze }    #rubocop:disable Security/Eval
 
+  describe :arabic do
+    it "detects that 0 belongs to 'zero'" do
+      _(p11n[:arabic].call(0)).must_equal 'zero'
+    end
+    it "detects that 1 belongs to 'one'" do
+      _(p11n[:arabic].call(1)).must_equal 'one'
+    end
+    it "detects that 2 belongs to 'two'" do
+      _(p11n[:arabic].call(2)).must_equal 'two'
+    end
+    [3, 4, 103, 208, 210, 807].each do |count|
+      it "detects that #{count} belongs to 'few'" do
+        _(p11n[:arabic].call(count)).must_equal 'few'
+      end
+    end
+    [11, 112, 280, 344, 523, 699, 820, 25, 27, 936].each do |count|
+      it "detects that #{count} belongs to 'many'" do
+        _(p11n[:arabic].call(count)).must_equal 'many'
+      end
+    end
+    [101, 102, 801, 1.2, 3.7, 11.5, 20.8, 1004.3].each do |count|
+      it "detects that #{count} in ru is 'other'" do
+        _(p11n[:arabic].call(count)).must_equal 'other'
+      end
+    end
+  end
+
+  describe :east_slavic do
+    [1, 21, 51, 71, 101, 1031].each do |count|
+      it "detects that #{count} belongs to 'one'" do
+        _(p11n[:east_slavic].call(count)).must_equal 'one'
+      end
+    end
+    [2, 3, 4, 22, 23, 24, 92, 93, 94].each do |count|
+      it "detects that #{count} belongs to 'few'" do
+        _(p11n[:east_slavic].call(count)).must_equal 'few'
+      end
+    end
+    [0, 5, 8, 10, 11, 18, 20, 25, 27, 30, 35, 38, 40].each do |count|
+      it "detects that #{count} belongs to 'many'" do
+        _(p11n[:east_slavic].call(count)).must_equal 'many'
+      end
+    end
+    [1.2, 3.7, 11.5, 20.8, 1004.3].each do |count|
+      it "detects that #{count} in ru is 'other'" do
+        _(p11n[:east_slavic].call(count)).must_equal 'other'
+      end
+    end
+  end
+
+  # default
   describe :one_other do
     it "detects that 1 belongs to 'one'" do
       _(p11n[:one_other].call(1)).must_equal 'one'
@@ -53,29 +104,6 @@
     end
   end
 
-  describe :east_slavic do
-    [1, 21, 51, 71, 101, 1031].each do |count|
-      it "detects that #{count} belongs to 'one'" do
-        _(p11n[:east_slavic].call(count)).must_equal 'one'
-      end
-    end
-    [2, 3, 4, 22, 23, 24, 92, 93, 94].each do |count|
-      it "detects that #{count} belongs to 'few'" do
-        _(p11n[:east_slavic].call(count)).must_equal 'few'
-      end
-    end
-    [0, 5, 8, 10, 11, 18, 20, 25, 27, 30, 35, 38, 40].each do |count|
-      it "detects that #{count} belongs to 'many'" do
-        _(p11n[:east_slavic].call(count)).must_equal 'many'
-      end
-    end
-    [1.2, 3.7, 11.5, 20.8, 1004.3].each do |count|
-      it "detects that #{count} in ru is 'other'" do
-        _(p11n[:east_slavic].call(count)).must_equal 'other'
-      end
-    end
-  end
-
   describe :polish do
     it "detects that 1 belongs to 'one'" do
       _(p11n[:polish].call(1)).must_equal 'one'