Get weather info via Google's API

weather.lua

#!/usr/bin/env lua
local http = require("socket.http")
local zip_code = "60614"

-- Grab google weather data
url = "http://www.google.com/ig/api?weather=" .. zip_code
data = http.request(url)

-- Only snag current conditions
current = data:match("<current_conditions>(.-)</current_conditions>")

-- Data point config
data_points = { "condition", "temp_f" }

-- Parse!
values = {}
for key,name in ipairs(data_points) do
  value = current:match('<' .. name ..' data="(.-)"/>')
  values[name] = value
end

-- Use
print(values['temp_f'])