add a cool lua repl

1 files changed, 57 insertions, 0 deletions

diff --git a/lib/lua-repl/repl/console.lua b/lib/lua-repl/repl/console.lua
new file mode 100644
index 00000000..154d0372
--- /dev/null
+++ b/lib/lua-repl/repl/console.lua
@@ -0,0 +1,57 @@
+-- Copyright (c) 2011-2015 Rob Hoelz <rob@hoelz.ro>
+--
+-- Permission is hereby granted, free of charge, to any person obtaining a copy of
+-- this software and associated documentation files (the "Software"), to deal in
+-- the Software without restriction, including without limitation the rights to
+-- use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+-- the Software, and to permit persons to whom the Software is furnished to do so,
+-- subject to the following conditions:
+--
+-- The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+-- FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+-- COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+-- IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+-- CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+-- @class repl.console
+--- This module implements a command line-based REPL,
+--- similar to the standalone Lua interpreter.
+
+local sync_repl    = require 'repl.sync'
+local compat       = require 'repl.compat'
+local console_repl = sync_repl:clone()
+local stdout       = io.stdout
+local stdin        = io.stdin
+local print        = print
+local unpack       = unpack
+
+-- @see repl:showprompt(prompt)
+function console_repl:showprompt(prompt)
+  stdout:write(prompt .. ' ')
+end
+
+-- @see repl.sync:lines()
+function console_repl:lines()
+  return stdin:lines()
+end
+
+-- @see repl:displayresults(results)
+function console_repl:displayresults(results)
+  if results.n == 0 then
+    return
+  end
+
+  print(compat.unpack(results, 1, results.n))
+end
+
+-- @see repl:displayerror(err)
+function console_repl:displayerror(err)
+  print(err)
+end
+
+console_repl._features.console = true
+
+return console_repl