jedi-vim auto completion after first letter - autocomplete

Is there a way to make jedi-vim automatically start the completion after typing any letter without pressing < C-Space >?
Is it maybe possible to bind
let g:jedi#completions_command = "< C-Space >"
command to every single letter while keeping their typing function?
Any suggestions are welcome.

No. Not yet. Something like this is planned, but we will need a proper async server first.
You could of course hack something together, but that would be painstakingly slow. So don't.
If you really want that, go and YouCompleteMe for now: https://github.com/Valloric/YouCompleteMe. It's using Jedi as well for Python, so it's pretty much the same.

Related

How to jump out of quote or jump out of code block with vim in vscode?

I'm learning Vim for few days and I have a question when coding with vim.
Let say I'm creating an object like this
const person = {
name: "Tu<my pointer after u character>"
}
What is the best way to move my pointer from after u character to after the double quote so I can keep writing my object
Another case is if I finish create object like this
const person = {
name: "Tu<my pointer after u character>"
}
How do I get my pointer to the line after the close curly bracket to keep writing code.
Some people say that I can escape the insert mode and using shift + A to go end of line but it takes 4 buttons to do that?
Thanks for answering my question.
Indeed the way to do it is to escape insert mode and use A to
[A]ppend stuff to the end of the line. To jump to the } in your code, there
are many many options, and which to use depends on the situation and user
preference, but I tend to use something like 3j to move 3 lines down (or
however many I need to move). And by putting the following in my vimrc:
set number
set relativenumber
I always know what number of lines I want to move.
Vim seems a bit weird for about 2 weeks (for me at least, when I started coding
in Vim) but after that it becomes automatic that if I finish inserting text for
any reason, I instinctively hit Esc. Many (most?) vim users remap
the some other key like CapsLock to act like Esc, since the Esc key on
modern keyboards is in an awkward position (unlike in the early days).
Once the 'modal' nature of vim becomes natural for you, things will fall into
place.
Oh, and it really helps if you learn to touch type 100% (i.e. never need to
look at the keyboard - even for numbers, punctuation, 'weird symbols' etc.)
Good luck!
In the first case, press <Right> or <End>, just like in any editor.
In the second case, press <Down> to move the caret after the }, then press <CR> (to open a new line) or <Down> (to move the caret to the line after the }), just like in any editor.
Going back to normal mode just for that is silly.
Note that you wouldn't have to deal with this without whatever you installed that closes quotes automatically.

How to move cursor to a C++ function(method)'s name from its body in VSCode with VIM extension

I'm developing some C++ code with VSCode+VIM extension. From time to time I need to do this while reading code: say I'm inside a long function and I want to know who called it. The first step to do is to move cursor directly under function's name so that I can invoke some keystrokes to show references.
What I'm current using is to press "[" key twice which will bring me to the opening bracket of the function. Since I have to follow some coding standard, the typical scenario is like this:
ReturnType ClassName::FunctionName(
ParamType1 param1,
ParamType2 param2,
ParamType3 param3)
{ // <-- Cursor here
......
}
Then I need to press "k" several times to move cursor under "ReturnType", depending on how many parameters are there. Next, I still have to press "w" 3 times to eventually move cursor from "ReturnType", to "FunctionName".
As you can see, this is a little painful here. I've tried easy motion approach with VSCode VIM extension, this makes my life a little easier, but I'm looking for a even better one.
Any VIM trick or VSCode extension can do this decently?
Any help will be appreciated, thanks!
To avoid having to press k a variable number of times it's possible to make use of the fact that the ) is right on the line above, and use % to go to the matching (. The complete key sequence is [[b%b.
However the first b will go to the ( if there's nothing between the parentheses. [[ge%b can be used instead.
If there's something between ) and { (such as a const qualifier) [[?)<cr>%b would work (this solution is complex and perhaps only useful in a key binding?)
[[?(<cr>b works too as long as there's no parameter that contains an open parentheses (such as in FunctionName(int (*function_pointer)(int, int)) { ... })

Doom Emacs lsp-ui action hotkeys

I'm a complete newbie when it comes to emacs. I recently installed Doom emacs and I've been really enjoying it. One thing that I'm struggling to find out is how do I quickly access/select on of the actions that are given to me by lsp-mode (I assume it's lsp-ui). I've attached a screenshot - the actions that I'm referring to are on the right-hand side.
Quick side questions:
When I jump to definition (spc-c-d) how do I jump back? Do I just kill the buffer?
Using ivy, how can I easily go through the list? - using control-n is a bit hard
You can come back to the previous buffer using CTRL+O
You can go down or up in the list using CTRL+j or CTRL+k
There are some tricks to get the answer:
first, try to find the action or function you know.
example 1. "M-x action-you-want-to-know"
example 2. "C-h k then-type-the-shortcut-key-you-want-to-search"
second, try to get the answer from project issues
The answer to your question:
1: press "C-o" jump backward
2: Try to input multi keywords in your search field to narrow down the search scope, just like increment search.
If you get too many lines after ivy-search some keyword you input, that means you donot know what you want to search, right?

How can I modify emacs' Search and Replace to perform a more complicated task?

total Emacs noob here. So right now I'm working on a fairly big LaTeX project in Emacs in which there are couple of places where I need to index some words, using the makeidx package. Because I also wanted indexed words to be bold, I created my own command \ind{} which would make the argument go bold and indexed. But right now I'm dissatisifed with this command so I'd like to change every instance of \ind{whatever} in my text by \textbf{whatever}\index{whatever by default}.
The thing is I know exactly what I want :
Go through the text, look for any instance of \ind{ and replace by \textbf{ using search-and-replace
Save the argument of \ind ("whatever" in this case) in memory
Ask me the user what should the argument of \index be. By default (by striking enter), it should be the first argument, but I can also change my mind and enter something different ("whatever by default" in this case). If there's no input (only a space " " for example) stop the program.
Write down \index{, the new argument and }.
Go to next occurance in the text.
But, alas!, I know not how to achieve this, so I need someone's help. If it should take too much time to explain how to do such a thing, would you please send me some tutorial about writing my own functions?
I hope I'm being clear, and thanks for your patience!
This approach seems vaguely unorthodox to me, but it works and seems sufficient for a one-off job...
In the replacement text for replace-regexp and query-replace-regexp (C-M-%), one newer escape sequence is \,(...), where ... can be any Lisp expression. There's a Lisp function read-from-minibuffer which reads arbitrary text typed by the user, with an optional default. Therefore:
C-M-%: Start query-replace-regexp.
\\ind{\([^}]+?\)}: The pattern to search for.
\\textbf{\1}\\index{\,(read-from-minibuffer "index content? " \1)}: The replacement text. The user will be prompted for the text to put in the braces following the \index{} element, using the original text between the braces following the \ind{} element as a default.
Note that when using query-replace-regexp, you'll have to confirm each choice by typing y after each. Use M-x replace-regexp if you want to avoid this step.
Vlad give you the LaTeX answer to your problem. An Emacs solution is the key-macro: start with
C-x (
to define a new macro, then do one step of your change, say:
C-s \ind{
<left>ex
Then copy and paste the argument in the \textbf macro... You have to be careful to move in a way that will be repeatable. Once the standard modification is done, you let the cursor after the whatever by default and end the definition by
C-x )
now C-x e will call the macro you just define, letting your cursor at the correct place to change the part you want to change You can also repeat the e to call the macro several time at once.
Why not just redefine the \ind so that it can get an optional argument?
For example:
\newcommand{\ind}[2][]{%
\def\first{#1}%
\ifx\first\empty
\textbf{#2}\index{#2}%
\else
\textbf{#2}\index{#1}%
\fi
}
This way you can use \ind{whatever} or \ind[whatever-else]{whatever}.

Emacs reselect region, as Vim shortcut 'gv' does

In vim, visual block can be recall by 'gv' command so that multiple commands can be applied easily. (such as, comment out, then indent, then do_something_fun).
In Emacs, how can this be achieved?
[C-xC-x] only works when current cursor position stays where previous block ended.
If previous block was changed, the closest is to go through 'point-to-register' and 'jump-to-register'.
Just I am curious if there is an Emacs built-in command making this in one shot.
If Transient Mark mode is off, the region is always active. If it's on (which it sounds like is your situation), you can set mark-even-if-inactive to non-nil to allow region commands to work while the region isn't highlighted.
However, note you also can cycle back through previous mark positions using C-u C-SPC -- this will pop the mark ring. Once you're back to where you want to be, C-x C-x will rehighlight the region you want. (It may take a little bit of playing with this feature to get a feel for it, but it's why I can't switch away from Emacs now.)
If I understand correctly what you are asking for, then you don't need to do anything. When you select a region in emacs, it stays selected until you select a new one. So you could select the region and then perform as many actions as you want.
Sounds like you're looking for the secondary selection, which stays put even as the region might change. (It stays put until you move it.)
See:
the Emacs manual, node Secondary Selection
Emacs wiki page Secondary Selection
library second-sel.el:
Also narrow-to-region (CTRL-x n n ) applies every command from then on just to that region- you can't hurt the rest of the buffer, it doesn't even show. After done editing , widen (CTRL-x n w )to get back the whole buffer.
CMM
If you use evil-mode, just press gv like in vim.
Since the answers here and for other similar SO questions didn't help for me (CUA-mode, Emacs 24, not only indent-rigidly), I continued searching and finally found a reselect-last-region defined in this collection of custom function (starting line 670). That worked like a charm for me - and hopefully does for others still arriving here.