Add bin and edit workflow

bin/gems/facets-3.1.0/lib/standard/facets/hash_builder.rb

@@ -0,0 +1,46 @@
+# HashBuilder takes a procedure and builds a Hash out of it.
+#
+# The procedure must conform to a set of rules to be useful in this respect.
+# They must either take an argument and use that argument to set values, or
+# if no argument is taken then `#instance_eval` is used to evaluate the
+# procedure such that each method represents a key.
+#
+class HashBuilder < BasicObject
+
+  #
+  def initialize(hash={}, &block)
+    @hash = hash
+
+    case block.arity
+    when 0
+      instance_eval(&block)
+    else
+      block.call(self)
+    end
+  end
+
+  #
+  def to_h
+    @hash
+  end
+
+  #
+  def method_missing(s, *a, &b)
+    m = s.to_s
+    if a.empty? && !b
+      @hash[m.to_sym]
+    else
+      if b
+        @hash[m.chomp('=').to_sym] = HashBuilder.new(&b).to_h
+      else
+        if a.size > 1
+          @hash[m.chomp('=').to_sym] = a
+        else
+          @hash[m.chomp('=').to_sym] = a.first
+        end
+      end
+    end
+  end
+
+end
+