From 591b2823d986bc877697e3bd485ffa9c9adff3ed Mon Sep 17 00:00:00 2001
From: murphy <murphy@rubychan.de>
Date: Tue, 18 May 2010 06:24:16 +0000
Subject: Ruby scanner handles :keep_state option.

---
 Changes.textile              |  1 +
 lib/coderay/scanners/ruby.rb | 13 ++++++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/Changes.textile b/Changes.textile
index dc9752e..aa0d640 100644
--- a/Changes.textile
+++ b/Changes.textile
@@ -164,6 +164,7 @@ h3. @Scanners::Ruby@
 * *NEW*: Highlight buggy floats (like .5) as @:error@.
 * *CLEANUP* of documentation, names of constants and variables, state handling.
 * *NEW*: Complicated rule for recognition of @foo=@ style method names.
+* *NEW*: Handles @:keep_state@ option (a bit; experimental).
   
   Actually, Ruby checks if there is @[~>=]@, but not @=>@ following the name.
 
diff --git a/lib/coderay/scanners/ruby.rb b/lib/coderay/scanners/ruby.rb
index a2e5fed..923d681 100644
--- a/lib/coderay/scanners/ruby.rb
+++ b/lib/coderay/scanners/ruby.rb
@@ -28,11 +28,19 @@ module Scanners
     
   protected
     
+    def setup
+      @state = :initial
+    end
+    
     def scan_tokens encoder, options
       
       patterns = Patterns  # avoid constant lookup
       
-      state = :initial
+      state = @state
+      if state.instance_of? patterns::StringState
+        encoder.begin_group state.type
+      end
+      
       last_state = nil
       
       method_call_expected = false
@@ -414,6 +422,9 @@ module Scanners
       end
 
       # cleaning up
+      if options[:keep_state]
+        @state = state
+      end
       if state.is_a? patterns::StringState
         encoder.end_group state.type
       end
-- 
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