Parse locale

lib/gherkin/ast.rb

@@ -83,5 +83,9 @@ def initialize(name)
         @name = name
       end
     end
+
+    class Locale < Node
+      attr_reader :name, :keyword
+    end
   end
 end

lib/gherkin/parser/gherkin.rex

@@ -6,6 +6,7 @@ macro
   BLANK         [\ \t]+
 
 rule
+  \#\s?locale:                          { [:LOCALE, text[0..-2]] }
   # Whitespace
   {BLANK}       # no action
   \#.*$

lib/gherkin/parser/gherkin.y

@@ -4,6 +4,7 @@ class Gherkin::Parser
 
 # Declare tokens produced by the lexer
 token NEWLINE
+token LOCALE
 token FEATURE BACKGROUND SCENARIO
 token TAG
 token GIVEN WHEN THEN AND BUT
@@ -12,12 +13,21 @@ token TEXT
 rule
 
   Root:
+    Locale { result = val[0]; }
+  |
+    Feature     { result = val[0] }
+  |
     Feature     { result = val[0]; }
   |
     Feature
       Scenarios { result = val[0]; result.scenarios = val[1] }
   ;
 
+  Locale:
+    LOCALE TEXT { result = val[1] }
+  | LOCALE TEXT Newline { result = val[1] }
+
+
   Newline:
     NEWLINE
   | Newline NEWLINE

lib/gherkin/parser/lexer.rb

@@ -59,6 +59,9 @@ def _next_token
     token = case @state
     when nil
       case
+      when (text = @ss.scan(/\#\s?locale:/))
+         action { [:LOCALE, text[0..-2]] }
+
       when (text = @ss.scan(/[ \t]+/))
         ;