Questions tagged [expression-register]
Questions about the usage of expression register "=
8
questions
2
votes
1answer
39 views
Calculate expression and paste after cursor
I want a shortcut for evaluating a yanked expression and pasting the result after the cursor.
Suppose I've written i1+1<ESC>0y$$, now I'd like to paste the result of that, 2, after the cursor. ...
1
vote
1answer
30 views
Expression register and fractions
I tried to use the arithmetic register with a fraction (7/8) and it returned 0! How do I exert better control over the register so that it gives me what I want?
The literal sequence I used, while in ...
2
votes
1answer
37 views
Pasting modified register contents into Visual Block selection
Consider this mapping:
vnoremap <leader>U ygv"=toupper(@@)<cr>p
It will yank the current visual selection, select it back, and then put a modified version of it. In this case, uppercase ...
1
vote
2answers
50 views
Valid usecases for `=` macro register
I happen to come across the = register. I checked :h @= and :h recording where it is mentioned. I am not able to understand how to use it. It could be helpful to know a valid usecase for the same.
0
votes
1answer
42 views
what is the difference between “* and ”+?
The two registers "* and "+, what is the difference between them?
Maybe they are all about OS clipboard?
1
vote
1answer
417 views
How to cmap a local function?
I'd like to reproduce this zsh mapping:
smart_dot() {
if [[ $LBUFFER = *.. ]]; then
LBUFFER+=/..
else
LBUFFER+=.
fi
}
zle -N smart_dot
bindkey -M viins -- . smart_dot
At first I used ...
4
votes
1answer
63 views
Integer overflow when using large numbers with the expression register
I'm trying to multiply two numbers using the Expression Register, but the numbers are pretty big (22,000,001 and 10,000,022), and instead of the correct result (220,000,494,000,022) I get -615802986.
...
7
votes
1answer
171 views
Why is the expression register “read only”?
I was messing with the expression register (:h @=) and noticed that it is not possible to put text directly in it. The doc says:
The expression register is read-only; you cannot put text into it.
...
