From a4ed5e49a20741b006ace90d2887a1d5720c37be Mon Sep 17 00:00:00 2001
From: Rene Saarsoo <nene@triin.net>
Date: Mon, 17 Dec 2012 17:33:39 +0200
Subject: [PATCH] Prototype of @cfg tag implemented as a class.

---
 lib/jsduck/builtins/cfg.rb | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 lib/jsduck/builtins/cfg.rb

diff --git a/lib/jsduck/builtins/cfg.rb b/lib/jsduck/builtins/cfg.rb
new file mode 100644
index 00000000..bbff8c19
--- /dev/null
+++ b/lib/jsduck/builtins/cfg.rb
@@ -0,0 +1,24 @@
+module JsDuck::Builtins
+  # Implementation of @cfg tag.
+  class Cfg
+    def initialize
+      @pattern = "cfg"
+    end
+
+    def parse(p)
+      p.add_tag(:cfg)
+      p.maybe_type
+      p.maybe_name_with_default
+      maybe_required(p)
+    end
+
+    # matches: "(required)"
+    def maybe_required(p)
+      p.skip_horiz_white
+      if p.look(/\(required\)/i)
+        p.match(/\(required\)/i)
+        p.current_tag[:optional] = false
+      end
+    end
+  end
+end
-- 
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