[ruby-core:97690] [Ruby master Feature#16754] Pager for `--help`

Issue #16754 has been updated by shevegen (Robert A. Heiler).


Oh... I just noticed in the code, I think that is the environment variable?

My C knowledge is so bad, but I guess getenv() indicates that. :D

    const char *pager_env = getenv("RUBY_PAGER");

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Feature #16754: Pager for `--help`
https://bugs.ruby-lang.org/issues/16754#change-84899

* Author: nobu (Nobuyoshi Nakada)
* Status: Open
* Priority: Normal
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The help message by `--help` is getting longer and longer, and it often exceeds usual terminal windows.
How about to show the message via pager when running on a tty?

And although the message is sectioned, they are less remarkable in the long text, and should be highlighted more, like as the attached screenshot for example.

https://github.com/ruby/ruby/pull/3000

---Files--------------------------------
screenshot-help.gif (38 KB)


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