diff --git a/lib/puppet/parser/scope.rb b/lib/puppet/parser/scope.rb
index df307915e..77032992c 100644
--- a/lib/puppet/parser/scope.rb
+++ b/lib/puppet/parser/scope.rb
@@ -1,507 +1,448 @@
 # The scope class, which handles storing and retrieving variables and types and
 # such.
 
 require 'puppet/parser/parser'
 require 'puppet/parser/templatewrapper'
 require 'puppet/transportable'
 require 'strscan'
 
 require 'puppet/resource/type_collection_helper'
 
 class Puppet::Parser::Scope
   include Puppet::Resource::TypeCollectionHelper
   require 'puppet/parser/resource'
 
   AST = Puppet::Parser::AST
 
   Puppet::Util.logmethods(self)
 
   include Enumerable
   include Puppet::Util::Errors
   attr_accessor :source, :resource
   attr_accessor :base, :keyword
   attr_accessor :top, :translated, :compiler
   attr_accessor :parent
   attr_reader :namespaces
 
   # thin wrapper around an ephemeral
   # symbol table.
   # when a symbol
   class Ephemeral
     def initialize(parent=nil)
       @symbols = {}
       @parent = parent
     end
 
     [:include?, :delete, :[]=].each do |m|
       define_method(m) do |*args|
         @symbols.send(m, *args)
       end
     end
 
     def [](name)
       unless @symbols.include?(name) or @parent.nil?
         @parent[name]
       else
         @symbols[name]
       end
     end
   end
 
   # A demeterific shortcut to the catalog.
   def catalog
     compiler.catalog
   end
 
   def environment
     compiler.environment
   end
 
   # Proxy accessors
   def host
     @compiler.node.name
   end
 
   # Is the value true?  This allows us to control the definition of truth
   # in one place.
   def self.true?(value)
     (value != false and value != "" and value != :undef)
   end
 
   # Is the value a number?, return the correct object or nil if not a number
   def self.number?(value)
     return nil unless value.is_a?(Fixnum) or value.is_a?(Bignum) or value.is_a?(Float) or value.is_a?(String)
 
     if value.is_a?(String)
       if value =~ /^-?\d+(:?\.\d+|(:?\.\d+)?e\d+)$/
         return value.to_f
       elsif value =~ /^0x[0-9a-f]+$/i
         return value.to_i(16)
       elsif value =~ /^0[0-7]+$/
         return value.to_i(8)
       elsif value =~ /^-?\d+$/
         return value.to_i
       else
         return nil
       end
     end
     # it is one of Fixnum,Bignum or Float
     value
   end
 
   # Add to our list of namespaces.
   def add_namespace(ns)
     return false if @namespaces.include?(ns)
     if @namespaces == [""]
       @namespaces = [ns]
     else
       @namespaces << ns
     end
   end
 
   # Remove this when rebasing
   def environment
     compiler.environment
   end
 
   def find_hostclass(name)
     known_resource_types.find_hostclass(namespaces, name)
   end
 
   def find_definition(name)
     known_resource_types.find_definition(namespaces, name)
   end
 
   def findresource(string, name = nil)
     compiler.findresource(string, name)
   end
 
   # Initialize our new scope.  Defaults to having no parent.
   def initialize(hash = {})
     if hash.include?(:namespace)
       if n = hash[:namespace]
         @namespaces = [n]
       end
       hash.delete(:namespace)
     else
       @namespaces = [""]
     end
     hash.each { |name, val|
       method = name.to_s + "="
       if self.respond_to? method
         self.send(method, val)
       else
         raise Puppet::DevError, "Invalid scope argument #{name}"
       end
     }
 
     extend_with_functions_module
 
     @tags = []
 
     # The symbol table for this scope.  This is where we store variables.
     @symtable = {}
 
     # the ephemeral symbol tables
     # those should not persist long, and are used for the moment only
     # for $0..$xy capture variables of regexes
     # this is actually implemented as a stack, with each ephemeral scope
     # shadowing the previous one
     @ephemeral = [ Ephemeral.new ]
 
     # All of the defaults set for types.  It's a hash of hashes,
     # with the first key being the type, then the second key being
     # the parameter.
     @defaults = Hash.new { |dhash,type|
       dhash[type] = {}
     }
 
     # The table for storing class singletons.  This will only actually
     # be used by top scopes and node scopes.
     @class_scopes = {}
   end
 
   # Store the fact that we've evaluated a class, and store a reference to
   # the scope in which it was evaluated, so that we can look it up later.
   def class_set(name, scope)
     return parent.class_set(name,scope) if parent
     @class_scopes[name] = scope
   end
 
   # Return the scope associated with a class.  This is just here so
   # that subclasses can set their parent scopes to be the scope of
   # their parent class, and it's also used when looking up qualified
   # variables.
   def class_scope(klass)
     # They might pass in either the class or class name
     k = klass.respond_to?(:name) ? klass.name : klass
     @class_scopes[k] || (parent && parent.class_scope(k))
   end
 
   # Collect all of the defaults set at any higher scopes.
   # This is a different type of lookup because it's additive --
   # it collects all of the defaults, with defaults in closer scopes
   # overriding those in later scopes.
   def lookupdefaults(type)
     values = {}
 
     # first collect the values from the parents
     unless parent.nil?
       parent.lookupdefaults(type).each { |var,value|
         values[var] = value
       }
     end
 
     # then override them with any current values
     # this should probably be done differently
     if @defaults.include?(type)
       @defaults[type].each { |var,value|
         values[var] = value
       }
     end
 
     #Puppet.debug "Got defaults for %s: %s" %
     #    [type,values.inspect]
     values
   end
 
   # Look up a defined type.
   def lookuptype(name)
     find_definition(name) || find_hostclass(name)
   end
 
   def undef_as(x,v)
     (v == :undefined) ? x : (v == :undef) ? x : v
   end
 
   def lookup_qualified_var(name)
     parts = name.split(/::/)
     shortname = parts.pop
     klassname = parts.join("::")
     klass = find_hostclass(klassname)
     unless klass
       warning "Could not look up qualified variable '#{name}'; class #{klassname} could not be found"
       return :undefined
     end
     unless kscope = class_scope(klass)
       warning "Could not look up qualified variable '#{name}'; class #{klassname} has not been evaluated"
       return :undefined
     end
     kscope.lookupvar(shortname)
   end
 
   private :lookup_qualified_var
 
   # Look up a variable.  The simplest value search we do.  
   def lookupvar(name)
     table = ephemeral?(name) ? @ephemeral.last : @symtable
     # If the variable is qualified, then find the specified scope and look the variable up there instead.
     if name =~ /::/
       lookup_qualified_var(name)
     elsif ephemeral_include?(name) or table.include?(name)
       # We can't use "if table[name]" here because the value might be false
       table[name]
     elsif parent
       parent.lookupvar(name)
     else
       :undefined
     end
   end
 
   # Return a hash containing our variables and their values, optionally (and
   # by default) including the values defined in our parent.  Local values
   # shadow parent values.
   def to_hash(recursive = true)
     target = parent.to_hash(recursive) if recursive and parent
     target ||= Hash.new
     @symtable.keys.each { |name|
       value = @symtable[name]
       if value == :undef
         target.delete(name)
       else
         target[name] = value
       end
     }
     target
   end
 
   def namespaces
     @namespaces.dup
   end
 
   # Create a new scope and set these options.
   def newscope(options = {})
     compiler.newscope(self, options)
   end
 
   def parent_module_name
     return nil unless @parent
     return nil unless @parent.source
     @parent.source.module_name
   end
 
   # Return the list of scopes up to the top scope, ordered with our own first.
   # This is used for looking up variables and defaults.
   def scope_path
     if parent
       [self, parent.scope_path].flatten.compact
     else
       [self]
     end
   end
 
   # Set defaults for a type.  The typename should already be downcased,
   # so that the syntax is isolated.  We don't do any kind of type-checking
   # here; instead we let the resource do it when the defaults are used.
   def setdefaults(type, params)
     table = @defaults[type]
 
     # if we got a single param, it'll be in its own array
     params = [params] unless params.is_a?(Array)
 
     params.each { |param|
       #Puppet.debug "Default for %s is %s => %s" %
       #    [type,ary[0].inspect,ary[1].inspect]
       if table.include?(param.name)
         raise Puppet::ParseError.new("Default already defined for #{type} { #{param.name} }; cannot redefine", param.line, param.file)
       end
       table[param.name] = param
     }
   end
 
   # Set a variable in the current scope.  This will override settings
   # in scopes above, but will not allow variables in the current scope
   # to be reassigned.
   def setvar(name,value, options = {})
     table = options[:ephemeral] ? @ephemeral.last : @symtable
     if table.include?(name)
       unless options[:append]
         error = Puppet::ParseError.new("Cannot reassign variable #{name}")
       else
         error = Puppet::ParseError.new("Cannot append, variable #{name} is defined in this scope")
       end
       error.file = options[:file] if options[:file]
       error.line = options[:line] if options[:line]
       raise error
     end
 
     unless options[:append]
       table[name] = value
     else # append case
       # lookup the value in the scope if it exists and insert the var
       table[name] = undef_as('',lookupvar(name))
       # concatenate if string, append if array, nothing for other types
       case value
       when Array
         table[name] += value
       when Hash
         raise ArgumentError, "Trying to append to a hash with something which is not a hash is unsupported" unless value.is_a?(Hash)
         table[name].merge!(value)
       else
         table[name] << value
       end
     end
   end
 
-  # Return an interpolated string.
-  def strinterp(string, file = nil, line = nil)
-    # Most strings won't have variables in them.
-    ss = StringScanner.new(string)
-    out = ""
-    while not ss.eos?
-      if ss.scan(/^\$\{((\w*::)*\w+|[0-9]+)\}|^\$([0-9])|^\$((\w*::)*\w+)/)
-        # If it matches the backslash, then just retun the dollar sign.
-        if ss.matched == '\\$'
-          out << '$'
-        else # look the variable up
-          # make sure $0-$9 are lookupable only if ephemeral
-          var = ss[1] || ss[3] || ss[4]
-          if var and var =~ /^[0-9]+$/ and not ephemeral_include?(var)
-            next
-          end
-          out << undef_as('',lookupvar(var)).to_s
-        end
-      elsif ss.scan(/^\\(.)/)
-        # Puppet.debug("Got escape: pos:%d; m:%s" % [ss.pos, ss.matched])
-        case ss[1]
-        when 'n'
-          out << "\n"
-        when 't'
-          out << "\t"
-        when 's'
-          out << " "
-        when '\\'
-          out << '\\'
-        when '$'
-          out << '$'
-        else
-          str = "Unrecognised escape sequence '#{ss.matched}'"
-          str += " in file #{file}" if file
-          str += " at line #{line}" if line
-          Puppet.warning str
-          out << ss.matched
-        end
-      elsif ss.scan(/^\$/)
-        out << '$'
-      elsif ss.scan(/^\\\n/) # an escaped carriage return
-        next
-      else
-        tmp = ss.scan(/[^\\$]+/)
-        # Puppet.debug("Got other: pos:%d; m:%s" % [ss.pos, tmp])
-        unless tmp
-          error = Puppet::ParseError.new("Could not parse string #{string.inspect}")
-          {:file= => file, :line= => line}.each do |m,v|
-            error.send(m, v) if v
-          end
-          raise error
-        end
-        out << tmp
-      end
-    end
-
-    out
-  end
-
   # Return the tags associated with this scope.  It's basically
   # just our parents' tags, plus our type.  We don't cache this value
   # because our parent tags might change between calls.
   def tags
     resource.tags
   end
 
   # Used mainly for logging
   def to_s
     "Scope(#{@resource})"
   end
 
   # Undefine a variable; only used for testing.
   def unsetvar(var)
     table = ephemeral?(var) ? @ephemeral.last : @symtable
     table.delete(var) if table.include?(var)
   end
 
   # remove ephemeral scope up to level
   def unset_ephemeral_var(level=:all)
     if level == :all
       @ephemeral = [ Ephemeral.new ]
     else
       (@ephemeral.size - level).times do
         @ephemeral.pop
       end
     end
   end
 
   # check if name exists in one of the ephemeral scope.
   def ephemeral_include?(name)
     @ephemeral.reverse.each do |eph|
       return true if eph.include?(name)
     end
     false
   end
 
   # is name an ephemeral variable?
   def ephemeral?(name)
     name =~ /^\d+$/
   end
 
   def ephemeral_level
     @ephemeral.size
   end
 
   def new_ephemeral
     @ephemeral.push(Ephemeral.new(@ephemeral.last))
   end
 
   def ephemeral_from(match, file = nil, line = nil)
     raise(ArgumentError,"Invalid regex match data") unless match.is_a?(MatchData)
 
     new_ephemeral
 
     setvar("0", match[0], :file => file, :line => line, :ephemeral => true)
     match.captures.each_with_index do |m,i|
       setvar("#{i+1}", m, :file => file, :line => line, :ephemeral => true)
     end
   end
 
   def find_resource_type(type)
     # It still works fine without the type == 'class' short-cut, but it is a lot slower.
     return nil if ["class", "node"].include? type.to_s.downcase
     find_builtin_resource_type(type) || find_defined_resource_type(type)
   end
 
   def find_builtin_resource_type(type)
     Puppet::Type.type(type.to_s.downcase.to_sym)
   end
 
   def find_defined_resource_type(type)
     environment.known_resource_types.find_definition(namespaces, type.to_s.downcase)
   end
 
   def resolve_type_and_titles(type, titles)
     raise ArgumentError, "titles must be an array" unless titles.is_a?(Array)
 
     case type.downcase
     when "class"
       # resolve the titles
       titles = titles.collect do |a_title|
         hostclass = find_hostclass(a_title)
         hostclass ?  hostclass.name : a_title
       end
     when "node"
       # no-op
     else
       # resolve the type
       resource_type = find_resource_type(type)
       type = resource_type.name if resource_type
     end
 
     return [type, titles]
   end
 
   private
 
   def extend_with_functions_module
     extend Puppet::Parser::Functions.environment_module(Puppet::Node::Environment.root)
     extend Puppet::Parser::Functions.environment_module(compiler ? environment : nil)
   end
 end
diff --git a/spec/unit/parser/scope_spec.rb b/spec/unit/parser/scope_spec.rb
index b37cb4add..17f485c03 100755
--- a/spec/unit/parser/scope_spec.rb
+++ b/spec/unit/parser/scope_spec.rb
@@ -1,620 +1,477 @@
 #!/usr/bin/env ruby
 
 require 'spec_helper'
 
 describe Puppet::Parser::Scope do
   before :each do
     @topscope = Puppet::Parser::Scope.new
     # This is necessary so we don't try to use the compiler to discover our parent.
     @topscope.parent = nil
     @scope = Puppet::Parser::Scope.new
     @scope.compiler = Puppet::Parser::Compiler.new(Puppet::Node.new("foo"))
     @scope.parent = @topscope
   end
 
   it "should be able to store references to class scopes" do
     lambda { @scope.class_set "myname", "myscope" }.should_not raise_error
   end
 
   it "should be able to retrieve class scopes by name" do
     @scope.class_set "myname", "myscope"
     @scope.class_scope("myname").should == "myscope"
   end
 
   it "should be able to retrieve class scopes by object" do
     klass = mock 'ast_class'
     klass.expects(:name).returns("myname")
     @scope.class_set "myname", "myscope"
     @scope.class_scope(klass).should == "myscope"
   end
 
   it "should be able to retrieve its parent module name from the source of its parent type" do
     @topscope.source = Puppet::Resource::Type.new(:hostclass, :foo, :module_name => "foo")
 
     @scope.parent_module_name.should == "foo"
   end
 
   it "should return a nil parent module name if it has no parent" do
     @topscope.parent_module_name.should be_nil
   end
 
   it "should return a nil parent module name if its parent has no source" do
     @scope.parent_module_name.should be_nil
   end
 
   it "should get its environment from its compiler" do
     env = stub 'environment'
     compiler = stub 'compiler', :environment => env
     scope = Puppet::Parser::Scope.new :compiler => compiler
     scope.environment.should equal(env)
   end
 
   it "should use the resource type collection helper to find its known resource types" do
     Puppet::Parser::Scope.ancestors.should include(Puppet::Resource::TypeCollectionHelper)
   end
 
   describe "when initializing" do
     it "should extend itself with its environment's Functions module as well as the default" do
       env = Puppet::Node::Environment.new("myenv")
       compiler = stub 'compiler', :environment => env
       mod      = Module.new
       root_mod = Module.new
       Puppet::Parser::Functions.expects(:environment_module).with(Puppet::Node::Environment.root).returns root_mod
       Puppet::Parser::Functions.expects(:environment_module).with(env).returns mod
 
       Puppet::Parser::Scope.new(:compiler => compiler).singleton_class.ancestors.should be_include(mod)
     end
 
     it "should extend itself with the default Functions module if it has no environment" do
       mod = Module.new
       Puppet::Parser::Functions.expects(:environment_module).with(Puppet::Node::Environment.root).returns(mod)
 
       Puppet::Parser::Functions.expects(:environment_module).with(nil).returns mod
 
       Puppet::Parser::Scope.new.singleton_class.ancestors.should be_include(mod)
     end
   end
 
   describe "when looking up a variable" do
     it "should return ':undefined' for unset variables" do
       @scope.lookupvar("var").should == :undefined
     end
 
     it "should be able to look up values" do
       @scope.setvar("var", "yep")
       @scope.lookupvar("var").should == "yep"
     end
 
     it "should be able to look up hashes" do
       @scope.setvar("var", {"a" => "b"})
       @scope.lookupvar("var").should == {"a" => "b"}
     end
 
     it "should be able to look up variables in parent scopes" do
       @topscope.setvar("var", "parentval")
       @scope.lookupvar("var").should == "parentval"
     end
 
     it "should prefer its own values to parent values" do
       @topscope.setvar("var", "parentval")
       @scope.setvar("var", "childval")
       @scope.lookupvar("var").should == "childval"
     end
 
     describe "and the variable is qualified" do
       before do
         @compiler = Puppet::Parser::Compiler.new(Puppet::Node.new("foonode"))
         @scope.compiler = @compiler
         @known_resource_types = @scope.known_resource_types
       end
 
       def newclass(name)
         @known_resource_types.add Puppet::Resource::Type.new(:hostclass, name)
       end
 
       def create_class_scope(name)
         klass = newclass(name)
         Puppet::Parser::Resource.new("class", name, :scope => @scope, :source => mock('source')).evaluate
 
         @scope.class_scope(klass)
       end
 
       it "should be able to look up explicitly fully qualified variables from main" do
         other_scope = create_class_scope("")
 
         other_scope.setvar("othervar", "otherval")
 
         @scope.lookupvar("::othervar").should == "otherval"
       end
 
       it "should be able to look up explicitly fully qualified variables from other scopes" do
         other_scope = create_class_scope("other")
 
         other_scope.setvar("var", "otherval")
 
         @scope.lookupvar("::other::var").should == "otherval"
       end
 
       it "should be able to look up deeply qualified variables" do
         other_scope = create_class_scope("other::deep::klass")
 
         other_scope.setvar("var", "otherval")
 
         @scope.lookupvar("other::deep::klass::var").should == "otherval"
       end
 
       it "should return ':undefined' for qualified variables that cannot be found in other classes" do
         other_scope = create_class_scope("other::deep::klass")
 
         @scope.lookupvar("other::deep::klass::var").should == :undefined
       end
 
       it "should warn and return ':undefined' for qualified variables whose classes have not been evaluated" do
         klass = newclass("other::deep::klass")
         @scope.expects(:warning)
         @scope.lookupvar("other::deep::klass::var").should == :undefined
       end
 
       it "should warn and return ':undefined' for qualified variables whose classes do not exist" do
         @scope.expects(:warning)
         @scope.lookupvar("other::deep::klass::var").should == :undefined
       end
 
       it "should return ':undefined' when asked for a non-string qualified variable from a class that does not exist" do
         @scope.stubs(:warning)
         @scope.lookupvar("other::deep::klass::var").should == :undefined
       end
 
       it "should return ':undefined' when asked for a non-string qualified variable from a class that has not been evaluated" do
         @scope.stubs(:warning)
         klass = newclass("other::deep::klass")
         @scope.lookupvar("other::deep::klass::var").should == :undefined
       end
     end
   end
 
   describe "when setvar is called with append=true" do
     it "should raise error if the variable is already defined in this scope" do
       @scope.setvar("var","1", :append => false)
       lambda { @scope.setvar("var","1", :append => true) }.should raise_error(Puppet::ParseError)
     end
 
     it "should lookup current variable value" do
       @scope.expects(:lookupvar).with("var").returns("2")
       @scope.setvar("var","1", :append => true)
     end
 
     it "should store the concatenated string '42'" do
       @topscope.setvar("var","4", :append => false)
       @scope.setvar("var","2", :append => true)
       @scope.lookupvar("var").should == "42"
     end
 
     it "should store the concatenated array [4,2]" do
       @topscope.setvar("var",[4], :append => false)
       @scope.setvar("var",[2], :append => true)
       @scope.lookupvar("var").should == [4,2]
     end
 
     it "should store the merged hash {a => b, c => d}" do
       @topscope.setvar("var",{"a" => "b"}, :append => false)
       @scope.setvar("var",{"c" => "d"}, :append => true)
       @scope.lookupvar("var").should == {"a" => "b", "c" => "d"}
     end
 
     it "should raise an error when appending a hash with something other than another hash" do
       @topscope.setvar("var",{"a" => "b"}, :append => false)
       lambda { @scope.setvar("var","not a hash", :append => true) }.should raise_error
     end
   end
 
   describe "when calling number?" do
     it "should return nil if called with anything not a number" do
       Puppet::Parser::Scope.number?([2]).should be_nil
     end
 
     it "should return a Fixnum for a Fixnum" do
       Puppet::Parser::Scope.number?(2).should be_an_instance_of(Fixnum)
     end
 
     it "should return a Float for a Float" do
       Puppet::Parser::Scope.number?(2.34).should be_an_instance_of(Float)
     end
 
     it "should return 234 for '234'" do
       Puppet::Parser::Scope.number?("234").should == 234
     end
 
     it "should return nil for 'not a number'" do
       Puppet::Parser::Scope.number?("not a number").should be_nil
     end
 
     it "should return 23.4 for '23.4'" do
       Puppet::Parser::Scope.number?("23.4").should == 23.4
     end
 
     it "should return 23.4e13 for '23.4e13'" do
       Puppet::Parser::Scope.number?("23.4e13").should == 23.4e13
     end
 
     it "should understand negative numbers" do
       Puppet::Parser::Scope.number?("-234").should == -234
     end
 
     it "should know how to convert exponential float numbers ala '23e13'" do
       Puppet::Parser::Scope.number?("23e13").should == 23e13
     end
 
     it "should understand hexadecimal numbers" do
       Puppet::Parser::Scope.number?("0x234").should == 0x234
     end
 
     it "should understand octal numbers" do
       Puppet::Parser::Scope.number?("0755").should == 0755
     end
 
     it "should return nil on malformed integers" do
       Puppet::Parser::Scope.number?("0.24.5").should be_nil
     end
 
     it "should convert strings with leading 0 to integer if they are not octal" do
       Puppet::Parser::Scope.number?("0788").should == 788
     end
 
     it "should convert strings of negative integers" do
       Puppet::Parser::Scope.number?("-0788").should == -788
     end
 
     it "should return nil on malformed hexadecimal numbers" do
       Puppet::Parser::Scope.number?("0x89g").should be_nil
     end
   end
 
   describe "when using ephemeral variables" do
     it "should store the variable value" do
       @scope.setvar("1", :value, :ephemeral => true)
 
       @scope.lookupvar("1").should == :value
     end
 
     it "should remove the variable value when unset_ephemeral_var is called" do
       @scope.setvar("1", :value, :ephemeral => true)
       @scope.stubs(:parent).returns(nil)
 
       @scope.unset_ephemeral_var
 
       @scope.lookupvar("1").should == :undefined
     end
 
     it "should not remove classic variables when unset_ephemeral_var is called" do
       @scope.setvar("myvar", :value1)
       @scope.setvar("1", :value2, :ephemeral => true)
       @scope.stubs(:parent).returns(nil)
 
       @scope.unset_ephemeral_var
 
       @scope.lookupvar("myvar").should == :value1
     end
 
     it "should raise an error when setting it again" do
       @scope.setvar("1", :value2, :ephemeral => true)
       lambda { @scope.setvar("1", :value3, :ephemeral => true) }.should raise_error
     end
 
     it "should declare ephemeral number only variable names" do
       @scope.ephemeral?("0").should be_true
     end
 
     it "should not declare ephemeral other variable names" do
       @scope.ephemeral?("abc0").should be_nil
     end
 
     describe "with more than one level" do
       it "should prefer latest ephemeral scopes" do
         @scope.setvar("0", :earliest, :ephemeral => true)
         @scope.new_ephemeral
         @scope.setvar("0", :latest, :ephemeral => true)
         @scope.lookupvar("0").should == :latest
       end
 
       it "should be able to report the current level" do
         @scope.ephemeral_level.should == 1
         @scope.new_ephemeral
         @scope.ephemeral_level.should == 2
       end
 
       it "should check presence of an ephemeral variable accross multiple levels" do
         @scope.new_ephemeral
         @scope.setvar("1", :value1, :ephemeral => true)
         @scope.new_ephemeral
         @scope.setvar("0", :value2, :ephemeral => true)
         @scope.new_ephemeral
         @scope.ephemeral_include?("1").should be_true
       end
 
       it "should return false when an ephemeral variable doesn't exist in any ephemeral scope" do
         @scope.new_ephemeral
         @scope.setvar("1", :value1, :ephemeral => true)
         @scope.new_ephemeral
         @scope.setvar("0", :value2, :ephemeral => true)
         @scope.new_ephemeral
         @scope.ephemeral_include?("2").should be_false
       end
 
       it "should get ephemeral values from earlier scope when not in later" do
         @scope.setvar("1", :value1, :ephemeral => true)
         @scope.new_ephemeral
         @scope.setvar("0", :value2, :ephemeral => true)
         @scope.lookupvar("1").should == :value1
       end
 
       describe "when calling unset_ephemeral_var without a level" do
         it "should remove all the variables values"  do
           @scope.setvar("1", :value1, :ephemeral => true)
           @scope.new_ephemeral
           @scope.setvar("1", :value2, :ephemeral => true)
 
           @scope.unset_ephemeral_var
 
           @scope.lookupvar("1").should == :undefined
         end
       end
 
       describe "when calling unset_ephemeral_var with a level" do
         it "should remove ephemeral scopes up to this level" do
           @scope.setvar("1", :value1, :ephemeral => true)
           @scope.new_ephemeral
           @scope.setvar("1", :value2, :ephemeral => true)
           @scope.new_ephemeral
           @scope.setvar("1", :value3, :ephemeral => true)
 
           @scope.unset_ephemeral_var(2)
 
           @scope.lookupvar("1").should == :value2
         end
       end
     end
   end
 
-  describe "when interpolating string" do
-    (0..9).each do |n|
-      it "should allow $#{n} to match" do
-        @scope.setvar(n.to_s, "value", :ephemeral => true)
-
-        @scope.strinterp("$#{n}").should == "value"
-      end
-    end
-
-    (0..9).each do |n|
-      it "should not allow $#{n} to match if not ephemeral" do
-        @scope.setvar(n.to_s, "value", :ephemeral => false)
-
-        @scope.strinterp("$#{n}").should_not == "value"
-      end
-    end
-
-    it "should not allow $10 to match" do
-      @scope.setvar("10", "value", :ephemeral => true)
-
-      @scope.strinterp('==$10==').should_not == "==value=="
-    end
-
-    it "should not allow ${10} to match" do
-      @scope.setvar("10", "value", :ephemeral => true)
-
-      @scope.strinterp('==${10}==').should == "==value=="
-    end
-
-    describe "with qualified variables" do
-      before do
-        @scopes = {}
-        klass = @scope.known_resource_types.add(Puppet::Resource::Type.new(:hostclass, ""))
-        Puppet::Parser::Resource.new("class", :main, :scope => @scope, :source => mock('source')).evaluate
-        @scopes[""] = @scope.class_scope(klass)
-        @scopes[""].setvar("test", "value")
-
-        %w{one one::two one::two::three}.each do |name|
-          klass = @scope.known_resource_types.add(Puppet::Resource::Type.new(:hostclass, name))
-          Puppet::Parser::Resource.new("class", name, :scope => @scope, :source => mock('source')).evaluate
-          @scopes[name] = @scope.class_scope(klass)
-          @scopes[name].setvar("test", "value-#{name.sub(/.+::/,'')}")
-        end
-      end
-      {
-        "===${one::two::three::test}===" => "===value-three===",
-        "===$one::two::three::test===" => "===value-three===",
-        "===${one::two::test}===" => "===value-two===",
-        "===$one::two::test===" => "===value-two===",
-        "===${one::test}===" => "===value-one===",
-        "===$one::test===" => "===value-one===",
-        "===${::test}===" => "===value===",
-        "===$::test===" => "===value==="
-      }.each do |input, output|
-        it "should parse '#{input}' correctly" do
-          @scope.strinterp(input).should == output
-        end
-      end
-    end
-
-    tests = {
-      "===${test}===" => "===value===",
-      "===${test} ${test} ${test}===" => "===value value value===",
-      "===$test ${test} $test===" => "===value value value===",
-      "===\\$test===" => "===$test===",
-      '===\\$test string===' => "===$test string===",
-      '===$test string===' => "===value string===",
-      '===a testing $===' => "===a testing $===",
-      '===a testing \$===' => "===a testing $===",
-      "===an escaped \\\n carriage return===" => "===an escaped  carriage return===",
-      '\$' => "$",
-      '\s' => "\s",
-      '\t' => "\t",
-      '\n' => "\n"
-    }
-
-    tests.each do |input, output|
-      it "should parse '#{input}' correctly" do
-        @scope.setvar("test", "value")
-        @scope.strinterp(input).should == output
-      end
-    end
-
-    # #523
-    %w{d f h l w z}.each do |l|
-      it "should parse '#{l}' when escaped" do
-        string = "\\#{l}"
-        @scope.strinterp(string).should == string
-      end
-    end
-  end
-
-  def test_strinterp
-    # Make and evaluate our classes so the qualified lookups work
-    parser = mkparser
-    klass = parser.newclass("")
-    scope = mkscope(:parser => parser)
-    Puppet::Parser::Resource.new(:type => "class", :title => :main, :scope => scope, :source => mock('source')).evaluate
-
-    assert_nothing_raised {
-      scope.setvar("test","value")
-    }
-
-    scopes = {"" => scope}
-
-    %w{one one::two one::two::three}.each do |name|
-      klass = parser.newclass(name)
-      Puppet::Parser::Resource.new(:type => "class", :title => name, :scope => scope, :source => mock('source')).evaluate
-      scopes[name] = scope.class_scope(klass)
-      scopes[name].setvar("test", "value-#{name.sub(/.+::/,'')}")
-    end
-
-    assert_equal("value", scope.lookupvar("::test"), "did not look up qualified value correctly")
-    tests.each do |input, output|
-      assert_nothing_raised("Failed to scan #{input.inspect}") do
-        assert_equal(output, scope.strinterp(input), 'did not parserret %s correctly' % input.inspect)
-      end
-    end
-
-    logs = []
-    Puppet::Util::Log.close
-    Puppet::Util::Log.newdestination(logs)
-
-    # #523
-    %w{d f h l w z}.each do |l|
-      string = "\\#{l}"
-      assert_nothing_raised do
-
-              assert_equal(
-        string, scope.strinterp(string),
-        
-          'did not parserret %s correctly' % string)
-      end
-
-
-            assert(
-        logs.detect { |m| m.message =~ /Unrecognised escape/ },
-        
-        "Did not get warning about escape sequence with #{string}")
-      logs.clear
-    end
-  end
-
   describe "when setting ephemeral vars from matches" do
     before :each do
       @match = stub 'match', :is_a? => true
       @match.stubs(:[]).with(0).returns("this is a string")
       @match.stubs(:captures).returns([])
       @scope.stubs(:setvar)
     end
 
     it "should accept only MatchData" do
       lambda { @scope.ephemeral_from("match") }.should raise_error
     end
 
     it "should set $0 with the full match" do
       @scope.expects(:setvar).with { |*arg| arg[0] == "0" and arg[1] == "this is a string" and arg[2][:ephemeral] }
 
       @scope.ephemeral_from(@match)
     end
 
     it "should set every capture as ephemeral var" do
       @match.stubs(:captures).returns([:capture1,:capture2])
       @scope.expects(:setvar).with { |*arg| arg[0] == "1" and arg[1] == :capture1 and arg[2][:ephemeral] }
       @scope.expects(:setvar).with { |*arg| arg[0] == "2" and arg[1] == :capture2 and arg[2][:ephemeral] }
 
       @scope.ephemeral_from(@match)
     end
 
     it "should create a new ephemeral level" do
       @scope.expects(:new_ephemeral)
       @scope.ephemeral_from(@match)
     end
   end
 
   describe "when unsetting variables" do
     it "should be able to unset normal variables" do
       @scope.setvar("foo", "bar")
       @scope.unsetvar("foo")
       @scope.lookupvar("foo").should == :undefined
     end
 
     it "should be able to unset ephemeral variables" do
       @scope.setvar("0", "bar", :ephemeral => true)
       @scope.unsetvar("0")
       @scope.lookupvar("0").should == :undefined
     end
 
     it "should not unset ephemeral variables in previous ephemeral scope" do
       @scope.setvar("0", "bar", :ephemeral => true)
       @scope.new_ephemeral
       @scope.unsetvar("0")
       @scope.lookupvar("0").should == "bar"
     end
   end
 
   it "should use its namespaces to find hostclasses" do
     klass = @scope.known_resource_types.add Puppet::Resource::Type.new(:hostclass, "a::b::c")
     @scope.add_namespace "a::b"
     @scope.find_hostclass("c").should equal(klass)
   end
 
   it "should use its namespaces to find definitions" do
     define = @scope.known_resource_types.add Puppet::Resource::Type.new(:definition, "a::b::c")
     @scope.add_namespace "a::b"
     @scope.find_definition("c").should equal(define)
   end
 
   describe "when managing defaults" do
     it "should be able to set and lookup defaults" do
       param = Puppet::Parser::Resource::Param.new(:name => :myparam, :value => "myvalue", :source => stub("source"))
       @scope.setdefaults(:mytype, param)
       @scope.lookupdefaults(:mytype).should == {:myparam => param}
     end
 
     it "should fail if a default is already defined and a new default is being defined" do
       param = Puppet::Parser::Resource::Param.new(:name => :myparam, :value => "myvalue", :source => stub("source"))
       @scope.setdefaults(:mytype, param)
       lambda { @scope.setdefaults(:mytype, param) }.should raise_error(Puppet::ParseError)
     end
 
     it "should return multiple defaults at once" do
       param1 = Puppet::Parser::Resource::Param.new(:name => :myparam, :value => "myvalue", :source => stub("source"))
       @scope.setdefaults(:mytype, param1)
       param2 = Puppet::Parser::Resource::Param.new(:name => :other, :value => "myvalue", :source => stub("source"))
       @scope.setdefaults(:mytype, param2)
 
       @scope.lookupdefaults(:mytype).should == {:myparam => param1, :other => param2}
     end
 
     it "should look up defaults defined in parent scopes" do
       param1 = Puppet::Parser::Resource::Param.new(:name => :myparam, :value => "myvalue", :source => stub("source"))
       @scope.setdefaults(:mytype, param1)
 
       child_scope = @scope.newscope
       param2 = Puppet::Parser::Resource::Param.new(:name => :other, :value => "myvalue", :source => stub("source"))
       child_scope.setdefaults(:mytype, param2)
 
       child_scope.lookupdefaults(:mytype).should == {:myparam => param1, :other => param2}
     end
   end
 end