Add windows? to Pry::Helpers::BaseHelpers.

Move (what I found) /mswin|mingw/ to windows?
Signed-off-by: Jordon Bedwell <jordon@envygeeks.com>

lib/pry.rb

@@ -159,7 +159,7 @@ require "optparse"
 require "slop"
 require "rbconfig"
 
-if defined? JRUBY_VERSION
+if Pry::Helpers::BaseHelpers.jruby?
   begin
     require 'ffi'
   rescue LoadError
@@ -167,7 +167,7 @@ if defined? JRUBY_VERSION
   end
 end
 
-if RbConfig::CONFIG['host_os'] =~ /mswin|mingw/
+if Pry::Helpers::BaseHelpers.windows?
   begin
     require 'win32console'
   rescue LoadError

lib/pry/helpers/base_helpers.rb

@@ -91,6 +91,11 @@ class Pry
         27
       end
 
+      # have fun on the Windows platform.
+      def windows?
+        RbConfig::CONFIG['host_os'] =~ /mswin|mingw/
+      end
+
       # are we on Jruby platform?
       def jruby?
         defined? JRUBY_VERSION

lib/pry/helpers/command_helpers.rb

@@ -187,7 +187,7 @@ class Pry
       # Return the syntax for a given editor for starting the editor
       # and moving to a particular line within that file
       def start_line_syntax_for_editor(file_name, line_number)
-        if RbConfig::CONFIG['host_os'] =~ /mswin|mingw/
+        if Helpers::BaseHelpers.windows?
           file_name = file_name.gsub(/\//, '\\')
         end
 
@@ -204,7 +204,7 @@ class Pry
         when /^jedit/
           "#{file_name} +line:#{line_number}"
         else
-          if RbConfig::CONFIG['host_os'] =~ /mswin|mingw/
+          if Helpers::BaseHelpers.windows?
             "#{file_name}"
           else
             "+#{line_number} #{file_name}"

lib/pry/pry_class.rb

@@ -195,7 +195,7 @@ class Pry
     return ENV['VISUAL'] if ENV['VISUAL'] and not ENV['VISUAL'].empty?
     return ENV['EDITOR'] if ENV['EDITOR'] and not ENV['EDITOR'].empty?
 
-    if RbConfig::CONFIG['host_os'] =~ /mswin|mingw/
+    if Helpers::BaseHelpers.windows?
       'notepad'
     else
       case true