Also get receiver by string.

lib/pegex/parser.rb

@@ -19,13 +19,18 @@ def parse input, args = {}
       # XXX "input" is a simple string ATM.
       @input = input.clone
       find_grammar
+      find_receiver
       start_rule = find_start_rule args[:start_rule]
     end
     def find_grammar
       raise 'No grammar specified' if @grammar.nil?
       if ::String == @grammar.class
-        require @grammar
-        @grammar = eval(camelize @grammar).new
+        @grammar = string_new @grammar
+      end
+    end
+    def find_receiver
+      if ::String == @receiver.class
+        @receiver = string_new @receiver
       end
     end
     def find_start_rule explicit = nil
@@ -40,6 +45,10 @@ def default_receiver maybe_recvr
         Receiver.new
       end
     end
+    def string_new path
+        require path
+        eval(camelize path).new
+    end
     # (Mostly) lifted from ActiveSupport::Inflector#camelize -
     def camelize string
       string = string.to_s.capitalize

spec/parser_spec.rb

@@ -33,7 +33,6 @@
     @prs.grammar = 'testgrammar'
     @prs.parse @input
     @prs.grammar.class.should eq Testgrammar
-    @prs.camelize('hi_hi/bi').should eq 'HiHi::Bi'
   end
   it 'should not alter actual input' do
     before = @input.clone
@@ -52,4 +51,12 @@
     @prs.grammar = tmp
     @prs.find_start_rule.should eq 'TOP'
   end
+  it "should pull in receiver by string" do
+    @prs.receiver = 'testrecvr'
+    @prs.parse @input
+    @prs.receiver.class.should eq Testrecvr
+  end
+  it "should camelize" do
+    @prs.camelize('hi_hi/bi').should eq 'HiHi::Bi'
+  end
 end

spec/testrecvr.rb

@@ -0,0 +1,3 @@
+class Testrecvr
+  # ... ?
+end