cnnrznn / goargs

A command line argument parser

goargs

A simple command line parser.

Inclusion

Algorithm

A command line provided by os.Args can look like the following:

[C:\Users\cnnrz\Documents\src\goargs\echo.exe 1 two three -flag -flagwithargs 1 2 3]

This is a []string parsed by whitespace.

The algorithm is roughly the following:

1. Strip executable path from os.Args.
2. We are left with an array of strings. In the above example, [1 two thre...].
3. Separate the slice into sub-slices where each sub-slice begins with a flag token: -flagName or --flag.
4. Sub slices look like [--flag argOne argTwo argN].
5. For each sub-slice, populate the relevant entry in Vals struct.

Philosophy

This module was built with the acknowledgement that there are not a ton of features here. The algorithm is simple and does not cover any edge cases. It has a simple option set and only returns values in strings. It is up to the user of the lib to do input validation.