Change default help template:
- The new template introduce new lines before and after
author/about sections.
- Add help template placeholders:
- about-section
- author-section
- Documentation of new placeholders in clap::App::help_template
- Update all unit tests by incorporating new lines
Following changes are implemented:
- Add 'clap::Arg::get_visible_aliases(&self)' method
This new method provides access to visible argument aliases
- Add 'clap::Arg::get_short/long_and_visible_aliases
This new method provides access to the short/long arguments and its
visible aliases
- Add visible aliases completions in clap_generate for following shells:
- Bash
- Elvish
- Fish
- Powershell
- Zsh
- Add test fixtures for testing visible alias completions in clap_generate:
'clap_generate/tests/completions/<shell>::<shell>_with_aliases()'
This removes the direct dependency on unicode-width and delegates the
complexity of computing the displayed width of text to the Textwrap
crate.
The `display_width` function handles characters like “æøå” (Danish),
“äöü” (German), and “😂✨😍” (emojis) – even if the unicode-width
Cargo feature is disabled.
This is an improvement of the former `str_width` function which would
over-estimate the width of emojis and non-ASCII characters (since they
are several bytes wide).
* docs: Correct method name in example
This looks like it was copied from the documentation for
`required_unless_present_all` but not updated accordingly for this
method.
* docs: Add note re `required_unless_present_all` to `required_unless_present_any`
There's a note in the documentation for `required_unless_present_all`
telling users to check out `required_unless_present_any` if that's what
they want. I figured it might be useful to have a similar note in the
documentation for `required_unless_present_any` pointing to that method
as well.
* docs: Fix `required` link in docs for `required_unless_present_all`
* docs: Correct "if" to "unless"
