max-au/argparse

Feature Request: custom format spec in help text

Closed this issue · 3 comments

eproxus commented

By default, a long flag named foobar will generate the following text in the command usage section: [--foobar <foobar>]. It would be nice to be able to specify a custom format text so it could be changed to [--foobar <baz>].

max-au commented

It actually generates the name in <...> using atom identifier of the argument. Therefore, you can achieve the desired effect with

#{name => baz, long => "foobar"}

I am working on (initially planned but didn't included in the original release) templating schema for help/usage, which will enable more cusomisations (including re-positioning of help message).

max-au commented

This has now been implemented.
See example:
https://github.com/max-au/argparse/blob/master/test/argparse_SUITE.erl#L668

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