1 files changed, 0 insertions, 92 deletions
diff --git a/lib/racc/iset.rb b/lib/racc/iset.rb
deleted file mode 100644
index 339221d21b..0000000000
--- a/lib/racc/iset.rb
+++ /dev/null
@@ -1,92 +0,0 @@
-#--
-#
-#
-#
-# Copyright (c) 1999-2006 Minero Aoki
-#
-# This program is free software.
-# You can distribute/modify this program under the same terms of ruby.
-# see the file "COPYING".
-#
-#++
-
-module Racc
-
-  # An "indexed" set.  All items must respond to :ident.
-  class ISet
-
-    def initialize(a = [])
-      @set = a
-    end
-
-    attr_reader :set
-
-    def add(i)
-      @set[i.ident] = i
-    end
-
-    def [](key)
-      @set[key.ident]
-    end
-
-    def []=(key, val)
-      @set[key.ident] = val
-    end
-
-    alias include? []
-    alias key? []
-
-    def update(other)
-      s = @set
-      o = other.set
-      o.each_index do |idx|
-        if t = o[idx]
-          s[idx] = t
-        end
-      end
-    end
-
-    def update_a(a)
-      s = @set
-      a.each {|i| s[i.ident] = i }
-    end
-
-    def delete(key)
-      i = @set[key.ident]
-      @set[key.ident] = nil
-      i
-    end
-
-    def each(&block)
-      @set.compact.each(&block)
-    end
-
-    def to_a
-      @set.compact
-    end
-
-    def to_s
-      "[#{@set.compact.join(' ')}]"
-    end
-
-    alias inspect to_s
-
-    def size
-      @set.nitems
-    end
-
-    def empty?
-      @set.nitems == 0
-    end
-
-    def clear
-      @set.clear
-    end
-
-    def dup
-      ISet.new(@set.dup)
-    end
-
-  end   # class ISet
-
-end   # module Racc