Re: line folding

Benno Schulenberg <[email protected]> Sat, 12 Oct 2024 12:23:46 +0200

Newsgroups	gmane.editors.nano.devel
Message-ID	<[email protected]>

Op 11-10-2024 om 14:18 schreef Seb:
> * I select some lines of text with Shift+Arrow key.
> 
> * I then press M-[ to visually replace the selected (complete) lines by a
>    single line which may for instance look something like
>      ====> (folded lines 237 to 274) <====
> 
> * To unfold the lines, I place the cursor on the line above and press M-[.

Right -- when a region is selected, or when the cursor is on a folded part,
it is quite obvious what M-[ should do.  But what should M-[ do by default,
when nothing is selected and the cursor is on a normal line?

Having no experience with line folding, I would expect M-[ to do some default
folding action, for example: from the current line until the next blank line,
or: when the cursor is somewhere in a block (delimited by blank lines), to
fold that block...  What do other folding editors do in such cases?


> (As an aside: why doesn't Shift+PageUp/Down select lines too (Nano 7.2)?)

That's because you're using urxvt and urxvt produces strange, non-conforming
escape sequences for modified movement keys.  Add the following two lines to
your ~/.Xresources file, restart, and the mentioned keystrokes should work:

   URxvt.keysym.S-Page_Up: \033[5;2~
   URxvt.keysym.S-Page_Down: \033[6;2~


Benno

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