more parfait ripples

changes due to previous changes in parfait api

lib/parfait.rb

@@ -72,16 +72,16 @@ module Parfait
     string = string.to_s if string.is_a? Symbol
     word = Parfait::Word.new( string.length )
     string.codepoints.each_with_index do |code , index |
-      word.set_char(index , code)
+      word.set_char(index + 1 , code)
     end
     word
   end
   def self.new_list array
     list = List.new_object
     list.set_length array.length
-    index = 0
+    index = 1
     while index < array.length do
-      list.set(index , array[index])
+      list.set(index , array[index - 1])
     end
     list
   end
@@ -89,9 +89,9 @@ module Parfait
   Word.class_eval do
     def to_s
       string = ""
-      index = 0
-      while( index < self.length)
-        string[index] = get_char(index).chr
+      index = 1
+      while( index <= self.length)
+        string[index - 1] = get_char(index).chr
         index = index + 1
       end
       string

lib/parfait/layout.rb

@@ -26,9 +26,9 @@ module Parfait
     # set the names of the instance variables in one go
     # used while booting the classes. At runtime the list would grow dynamically
     def set_names list
-      self.set_length list.length
+      self.set_length list.get_length
       index = 0
-      while index < list.length do
+      while index < list.get_length do
         list.set(index , array.get(index))
       end
     end

lib/parfait/list.rb

@@ -79,7 +79,7 @@ module Parfait
     end
 
     def grow_to(len)
-      raise "Only positive lenths, #{len}" if len <= 0
+      raise "Only positive lenths, #{len}" if len < 0
       old_length = self.get_length
       return if old_length >= len
       internal_object_grow(len + 1)

lib/parfait/object.rb

@@ -37,7 +37,7 @@ module Parfait
 
     def get_layout()
       puts "ME #{self.class}"
-      return internal_object_get(LAYOUT)
+      return internal_object_get(LAYOUT_INDEX)
     end
 
     # class stores the "latest" layout for instances, ie the layout a new object will

lib/parfait/word.rb

@@ -37,6 +37,7 @@ module Parfait
       counter = self.length()
       return if counter >= len
       internal_object_grow( len + 1)
+      counter = counter + 1
       while( counter < len)
         set_char( counter , fill_char)
         counter = counter + 1
@@ -57,7 +58,8 @@ module Parfait
     def range_correct_index at
       index = at
       index = self.length + at if at < 0
-      raise "index out of bounds #{at} > #{self.length}" if (index < 0) or (index > self.length)
+      raise "index must be positive , not #{at}" if (index <= 0)
+      raise "index too large #{at} > #{self.length}" if (index > self.length)
       return index
     end