lib/irb_hacks/snippet.rb in irb_hacks-0.1.1 vs lib/irb_hacks/snippet.rb in irb_hacks-0.2.0

@@ -1,11 +1,12 @@
 require "readline"
 
 module IrbHacks   #:nodoc:
   module Snippet
+    #TODO: Configured values. Config is common for entire IrbHacks.
     HISTORY_FILE = File.join(ENV["HOME"], ".irb_snippet_history")
-    HISTORY_SIZE = 20
+    HISTORY_SIZE = 500
 
     # Edit code snippet.
     def self.edit
       ##p "R::H before", Readline::HISTORY.to_a
       ##p "@history at inv", @history
@@ -53,16 +54,22 @@
         YAML.load(content)
       rescue
         nil
       end
 
-      @history = [%{puts "YOUR test code here"}] if not @history.is_a? Array
+      @history = [%{puts "YOUR test code here"}] if not @history
     end
 
     # Run code snippet.
+    # If <tt>IrbHacks.break</tt> is called anywhere, immediately return its argument.
     def self.run(*args, &block)
       if (code = @history.last)
-        eval(code, &block)
+        begin
+          eval(code, &block)
+        rescue IrbHacks::BreakException => e
+          # If invoked as documented, `e.message` is always an array.
+          e.message[0]
+        end
       end
     end
 
     def self.save_history
       # Truncate a saved version of @history.