Flag Parse

Interpret a flag argument as a mode.

flag_parse.lua

local flag = 
local mode = "normal"
if flag == "--verbose" then
  mode = "verbose"
end
if flag == "--quiet" then
  mode = "quiet"
end
print("flag=" .. flag)
print("mode=" .. mode)

local flag = 
local mode = "normal"
if flag == "--verbose" then
  mode = "verbose"
end
if flag == "--quiet" then
  mode = "quiet"
end
print("flag=" .. flag)
print("mode=" .. mode)

local flag = 
local mode = "normal"
if flag == "--verbose" then
  mode = "verbose"
end
if flag == "--quiet" then
  mode = "quiet"
end
print("flag=" .. flag)
print("mode=" .. mode)

parse flag A flag changes behavior without needing a separate value.