first commit

lib/pry.rb

@@ -0,0 +1,42 @@
+require 'rubygems'
+require 'readline'
+require 'ruby_parser'
+
+class RubyParser
+  def self.valid?(code)
+    new.parse(code)
+  rescue Racc::ParseError
+    false
+  else
+    true
+  end
+end
+
+def pry(target)
+  eval_string = ""
+  while true
+    prompt = ""
+    if eval_string.empty?
+      prompt = "> "
+    else
+      prompt = "* "
+    end
+    
+    val = Readline.readline(prompt, true)
+    eval_string += val
+
+    if val == "!"
+      eval_string = ""
+      puts "refreshing REPL state"
+      break
+    end
+
+    exit if val == "quit"
+    break if RubyParser.valid?(eval_string)
+  end
+  begin
+    puts "=> #{target.instance_eval(eval_string).inspect}"
+  rescue StandardError => e
+    puts "#{e.message}"
+  end
+end

lib/target.rb

@@ -0,0 +1,16 @@
+require './pry'
+
+o = Object.new
+class << o
+  def pig;
+    puts "pig!!!"
+  end
+
+  def horse?
+    puts "HORSEY LOL"
+  end
+end
+
+5.times {
+  pry(o)
+}