Merge pull request joewalnes#257 from brickcap/master

updated with examples of lua

examples/lua/README.md

@@ -0,0 +1,45 @@
+The examples demonstrate the use of websocketd with lua. There are two examples in the directory both very basic.
+
+1. Greeter.lua simply echos back any input made from the client
+2. json_ws.lua echos back any input from the client *after* converting it into a json string
+
+It is pretty simple to extend these examples into full fledged applications. All you need is an stdin input loop
+
+```
+local input = io.stdin:read()
+
+while input do
+-- do anything here
+
+-- update the input
+input = io.stdin:read()
+
+end
+
+
+```
+
+any thing you `print` goes out to the websocket client
+
+Libraries and third party modules can be used by the standard `require` statement in lua.
+
+## Running the examples
+
+
+
+##### 1. Download
+
+[Install](https://github.com/joewalnes/websocketd/wiki/Download-and-install) websocketd and add it to your `PATH`.
+
+##### 2. Start a server: greeter
+
+Run `websocketd --port=8080 --devconsole lua ./greeter.lua` and then go to `http://localhost:8080` to interact with it
+
+##### 3. Start a server: json_ws
+
+Run `websocketd --port=8080 --devconsole  lua  ./json_ws.lua` and then go to `http://localhost:8080` to interact with it
+
+If you are using luajit instead of lua you may run the examples like this
+(this assumes that you've got luajit in your path)
+
+`websocketd --port=8080 --devconsole luajit ./json_ws.lua` and then go to `http://localhost:8080`

examples/lua/greeter.lua

@@ -0,0 +1,7 @@
+local input = io.stdin:read()
+while input do
+   print(input)
+   io.stdout:flush()
+   input = io.stdin:read()
+end
+