rsclp

Command line parser rust lib crate

Command line parser is able to parse process arguments. Arguments could be of two types, single character argument (i.g -c) or long text argument (i.g. --config-file)

Process argument could be of the following type:

• Boolean: classic is -h to show process help.
• Integer: an integer value for example verbosity level --verbose 5.
• Floating point: a floating point numer --ratio=123.25 .
• String: a text argument, classic configuration file path --config-file app.properties.

Argument can be passed in two ways: --config-file=config/app.properties or --config-file config/app.propertiesthe same example is valid for single character options -c=config/app.properties or -c config/app.properties.

Single character option can be pass grouped together (i.g -xvz). Be careful if a single character argument needs an argument you have to pass it or adding = and the value (i.g. -xvzf=file_to_compress.tar.gz) or as next process argument (i.g -xvzf file_to_compress.tar.gz). NOTE: No more than a single character option with a mandatory argument can be grouped.

documentation

New Features and bugs resolution

2024-March-03 - Bug description: mandatory options are checked even if help option or version is set.

Solution: method check_mandatory_options is not private anymore and the user can callit after the help or version option check