Feature request: `b` for :pageup to match less pager on linux

[vancleve]

Its right above SPACE so its easy to press instead of reaching for pageup

https://man7.org/linux/man-pages/man1/less.1.html

[knuesel]

Rather than creating a new issue I'll hijack this one to to ask for specific keybindings as you suggested on Discourse.

"Less" has a ton of redundant keybindings, so it may not make sense to support all of them. For what it's worth, here are the ones I find most useful:

• [x] g/G for begin/end of document
• [x] space for one screen forward
• [x] j/k for vertical scrolling
• [x] h/l for horizontal scrolling
• [x] q for quitting the pager
• [x] / and n/N for searching and going to next/previous match
• [ ] </> for begin/end of document
• [ ] f/b for one screen forward/backward
• [ ] Ctrl+V/Alt+V for one screen forward/backward (also works in Emacs)
• [ ] Ctrl+F/Ctrl+B for one screen forward/backward (also works in "vi")
• [ ] 30<key> as equivalent to 30 times <key> (e.g. 5j to scroll 5 lines) and in particular:
• [ ] 30g to go to line 30

[ronisbr]

Thanks @vancleve and @knuesel !

I will try to implement it. If we have some clash with existing key bindings, I will let you know so that we can discuss about it.

[ronisbr]

Hi @knuesel

I implemented '<' / '>', and 'b' to go back (making a nice pair with space). However, f is already used to freeze columns and rows.

I prefer to avoid those key bindings like CTRL+V/ALT+V and CTRL+F/CTRL+B. It just does not make sense for me.

Finally, those key bindings that takes a number will make the processing a lot more complicated. Right now, it is a 1 to 1 function (key binding => action). If I add numbers, then I need a state machine to take care of the command. I think it is an unnecessary complication for a pager.

Feel free to reopen if you disagree.