Merge branch 'feature/add_group_matches_in_route_gh_478' of https://g…

…ithub.com/mpapis/nanoc into mpapis-feature/add_group_matches_in_route_gh_478

Conflicts:
	test/base/test_rule.rb

lib/nanoc/base/compilation/rule.rb

@@ -65,7 +65,26 @@ def apply_to(rep, params = {})
         raise ArgumentError, 'Required :compiler option is missing'
       end
       rep = Nanoc::ItemRepProxy.new(rep, compiler) unless rep.proxy?
-      Nanoc::RuleContext.new(:rep => rep, :compiler => compiler).instance_eval(&@block)
+      Nanoc::RuleContext.new(
+        :rep      => rep,
+        :compiler => compiler
+      ).instance_exec(
+        matches(rep.item.identifier),
+        &@block
+      )
+    end
+
+  protected
+
+    # Matches the rule regexp against items identifier and gives back group
+    # captures if any
+    #
+    # @param String items identifier to check
+    #
+    # @return [nil, Array] array of group captures if any
+    def matches(identifier)
+      matches = @identifier_regex.match(identifier)
+      matches && matches.captures
     end
   end
 end

test/base/test_rule.rb

@@ -12,4 +12,14 @@ def test_applicable_to
   def test_apply_to
     # TODO: implement
   end
+
+  def test_matches
+    regexp     = %r</(.*)/(.*)/>
+    identifier = '/anything/else/'
+    expected   = ['anything', 'else']
+
+    rule = Nanoc::Rule.new(regexp, :string, Proc.new {})
+
+    assert_equal expected, rule.send(:matches, identifier)
+  end
 end