Module parser 

Low-level argument parsing for click-rs.

This module provides the internal option parser that handles the actual parsing of command-line arguments. It is modeled after Python Click’s parser.py and brings a similar but simplified API.

Reference

Based on Python Click’s parser.py.

Key Behaviors

• -- ends option parsing; remaining args are positional
• Short options can be grouped: -abc = -a -b -c
• Short option with value: -nfoo or -n foo
• Long option with value: --name=foo or --name foo

Structs

OptionParser

The main option parser.

Enums

OptionAction

Action to perform when an option is encountered.

ParsedValue

A parsed value from the command line.

Constants

NARGS_OPTIONAL

Special nargs value indicating optional (? in Python Click). This is used internally to distinguish optional from 0.

Functions

split_opt

Split an option string into its prefix and name.

Type Aliases

ParseResult

Result type for parsing: (options, remaining args, parameter order).