1 files changed, 37 insertions, 0 deletions
diff --git a/ruby_1_8_6/lib/eregex.rb b/ruby_1_8_6/lib/eregex.rb
new file mode 100644
index 0000000000..cc7a7f6f46
--- /dev/null
+++ b/ruby_1_8_6/lib/eregex.rb
@@ -0,0 +1,37 @@
+# this is just a proof of concept toy.
+
+class RegOr
+  def initialize(re1, re2)
+    @re1 = re1
+    @re2 = re2
+  end
+
+  def =~ (str)
+    @re1 =~ str or @re2 =~ str
+  end
+end
+
+class RegAnd
+  def initialize(re1, re2)
+    @re1 = re1
+    @re2 = re2
+  end
+
+  def =~ (str)
+    @re1 =~ str and @re2 =~ str
+  end
+end
+
+class Regexp
+  def |(other)
+    RegOr.new(self, other)
+  end
+  def &(other)
+    RegAnd.new(self, other)
+  end
+end
+
+if __FILE__ == $0
+  p "abc" =~ /b/|/c/
+  p "abc" =~ /b/&/c/
+end