Allow the user to specify strings for "USAGE:", "FLAGS:", "OPTIONS:", "ARGS:"...

[crowdagger]

Currently, the strings used in the help message "USAGE:", "FLAGS:", "OPTIONS:", "ARGS" are hardcoded in src/app/help.rs.

Similarly, in the create_help_and_version method of src/app/parser.rs, the help messages for -h and -v are hardcoded to "Prints help information" and "Prints version information", and I don't think (I may be wrong on this?) they can be overriden.

I think it would be nice to allow the user to set their own strings for those, e.g. to allow translation.

[kbknapp]

This can be done via App::templates.

Here's a video about templating as well.

There's also the AppSettings::UnifiedHelpMessage which simply combines FLAGS and OPTIONS into just OPTIONS.

I know that's not exactly what you're asking for, but at this time thats how it can be done. I'm not against giving a way to customize these strings, but am unsure about how to best do this.

As far as overriding the default help or version messages, I'm also open to giving ways to customize those...I just need to finish a few other issues first 😜

[crowdagger]

Yes, it's possible to use template and overriding default implementations for help/version, just thought it could be an enhancement :) (Didn't know about the videos, that's really nice)

[kbknapp]

@lise-henry is something like #805 what you're envisioning?

[kbknapp]

I'm going to close this issue in favor of #805