add a cool lua repl

lib/lua-repl/Roadmap.md

@@ -0,0 +1,44 @@
+0.10
+===
+
+  * Process Lua command line options with rep.lua
+  * Verify that it works with LuaJIT, Lua 5.0, Lua 5.2, LuaJ or something
+  * __pretty support for pretty print plugin
+  * __complete support for completion plugin
+  * Documentation improvements
+    * More clearly reference PLUGINS.md from README.md
+    * More clearly reference rep.lua from README.md
+    * Make sure that autocompletion is talked up in plugins.md (and mention in readme that many default/optional behaviors are present there)
+    * Make sure documentation on ~/.rep.lua is clear
+    * Move docs into doc/
+
+Future
+======
+
+  * Plugins
+    * where do plugins store values (self, storage object, etc?)
+    * configuration
+    * global assignments in plugins
+    * we need a way to do method advice in REPL "subclasses"
+    * test: using advice from within ifplugin/iffeature
+    * luaish plugin
+    * moonscript plugin - compile Moonscript instead of Lua
+  * Steal ideas from ilua
+    * Variables in ilua must be declared before use
+    * -L is like -l, except it automatically brings it into the global NS
+    * require() wrapper that does this ↑
+    * table display logic control, float precision control
+    * print\_handler (custom print logic for types)
+      * \_\_pretty
+    * global\_handler (custom lookup logic to complement strict mode)
+      * easily done via a plugin
+    * line\_handler (custom handling of lines before being processed)
+  * Steal ideas from luaish
+    * Shell commands (lines beginning with ., filename completion)
+  * Steal ideas from http://en.wikipedia.org/wiki/Read%E2%80%93eval%E2%80%93print\_loop
+  * Steal ideas from pry, ipython, bpython, Devel::REPL, Factor REPL
+  * Steal ideas from https://github.com/tpope/vim-foreplay
+  * Async implementation
+  * GTK implementation
+  * IRC bot implementation
+  * Awesome library