* lib/irb/slex.rb: small cleanups. (ruby-bugs-ja PR#492)

* lib/irb/ruby-lex.rb: ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3932 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/irb/ruby-lex.rb

@@ -67,12 +67,12 @@ class RubyLex
   attr_reader :indent
 
   # io functions
-  def set_input(io, p = nil)
+  def set_input(io, p = nil, &block)
     @io = io
     if p.respond_to?(:call)
       @input = p
-    elsif iterator?
-      @input = Block.new
+    elsif block_given?
+      @input = block
     else
       @input = Block.new{@io.gets}
     end
@@ -183,7 +183,8 @@ class RubyLex
   end
   private :buf_input
 
-  def set_prompt(p = Block.new)
+  def set_prompt(p, &block)
+    p = block if block_given?
     if p.respond_to?(:call)
       @prompt = p
     else

lib/irb/slex.rb

@@ -31,22 +31,22 @@ class SLex
     @head = Node.new("")
   end
   
-  def def_rule(token, preproc = nil, postproc = nil)
+  def def_rule(token, preproc = nil, postproc = nil, &block)
     #      print node.inspect, "\n" if SLex.debug?
-    postproc = Block.new if iterator?
+    postproc = block if block_given?
     node = create(token, preproc, postproc)
   end
   
-  def def_rules(*tokens)
-    if iterator?
-      p = Block.new
+  def def_rules(*tokens, &block)
+    if block_given?
+      p = block
     end
     for token in tokens
       def_rule(token, nil, p)
     end
   end
   
-  def preporc(token, proc)
+  def preproc(token, proc)
     node = search(token)
     node.preproc=proc
   end