vendor/clap/examples/tutorial_builder/03_02_option.md

   1 ```console
   2 $ 03_02_option --help
   3 clap [..]
   4 A simple to use, efficient, and full-featured Command Line Argument Parser
   5
   6 USAGE:
   7     03_02_option[EXE] [OPTIONS]
   8
   9 OPTIONS:
  10     -h, --help           Print help information
  11     -n, --name <NAME>
  12     -V, --version        Print version information
  13
  14 $ 03_02_option
  15 name: None
  16
  17 $ 03_02_option --name bob
  18 name: Some("bob")
  19
  20 $ 03_02_option --name=bob
  21 name: Some("bob")
  22
  23 $ 03_02_option -n bob
  24 name: Some("bob")
  25
  26 $ 03_02_option -n=bob
  27 name: Some("bob")
  28
  29 $ 03_02_option -nbob
  30 name: Some("bob")
  31
  32 ```