A library for parsing command line arguments.

• Quickstart
• API Reference
• Command Line Interface
• Examples

This library supports:

• Long-form boolean flags with single-character shortcuts: --flag, -f.
• Long-form string, integer, and floating-point options with single-character shortcuts: --option <arg>, -o <arg>.
• Condensed short-form options: -abc <arg> <arg>.
• Automatic --help and --version flags.
• Support for multivalued options.
• Support for git-style command interfaces with arbitrarily-nested commands.