support open os command line programs

sys/apis/util.lua

@@ -659,6 +659,37 @@ function Util.wordWrap(str, limit)
 	return lines
 end
 
+-- https://github.com/MightyPirates/OpenComputers
+function Util.parse(...)
+  local params = table.pack(...)
+  local args = {}
+  local options = {}
+  local doneWithOptions = false
+  for i = 1, params.n do
+    local param = params[i]
+    if not doneWithOptions and type(param) == "string" then
+      if param == "--" then
+        doneWithOptions = true -- stop processing options at `--`
+      elseif param:sub(1, 2) == "--" then
+        local key, value = param:match("%-%-(.-)=(.*)")
+        if not key then
+          key, value = param:sub(3), true
+        end
+        options[key] = value
+      elseif param:sub(1, 1) == "-" and param ~= "-" then
+        for j = 2, string.len(param) do
+          options[string.sub(param, j, j)] = true
+        end
+      else
+        table.insert(args, param)
+      end
+    else
+      table.insert(args, param)
+    end
+  end
+  return args, options
+end
+
 function Util.args(arg)
 	local options, args = { }, { }