path.rb in key_tree-0.7.0

- old
+ new

@@ -14,11 +14,11 @@
     #
     # Make a new key path from one or more keys or paths
     #
     def self.[](*key_paths)
       key_paths.reduce(Path.new) do |result, key_path|
-        result << key_path.to_key_path
+        result << Path.new(key_path)
       end
     end
 
     #
     # KeyTree::Path.new(+key_or_path+)
@@ -39,13 +39,11 @@
       else
         initialize(key_path.to_key_path)
       end
     end
 
-    def to_key_path
-      self
-    end
+    alias to_key_path itself
 
     def to_s
       join('.')
     end
 
@@ -62,23 +60,25 @@
     end
 
     # Returns a key path without the leading +prefix+
     #
     # :call-seq:
-    #   Path - other => Path
-    def -(other)
+    #   drop(other) => Path
+    def drop(other)
       other = other.to_key_path
       raise KeyError unless prefix?(other)
+
       super(other.length)
     end
 
     # Is +other+ a prefix?
     #
     # :call-seq:
     #   prefix?(other) => boolean
     def prefix?(other)
       other = other.to_key_path
       return false if other.length > length
+
       key_enum = each
       other.all? { |other_key| key_enum.next == other_key }
     end
     alias === prefix?
 