This is the 1st post of a series posts on nifty techniques that make my editing experience in Neovim smoother.
In Neovim, if we want to select from the current cursor position to the end of
the line, we usually use v$. However, the annoyance is that newline character
is also selected. We have to press h to move the cursor one character left.
How do we select only to the last character of the line? Fortunately, we can
use g_ to do that. According to the documentation:
g_ To the last non-blank character of the line and
[count - 1] lines downward |inclusive|.To select from the cursor position to the last character of this line, we can
use vg_.
There is also a selection
option in Neovim that controls how the selection
behaves. If we use set selection=exclusive, then the last character will not
be included when we use $.
Another way is to remap $ in visual mode. Add the following settings to your config:
References
Neovim provides several shortcuts to change character cases quickly. All the
following operations should be followed by motions (e.g., $, w, e etc.)
or text objects:
g~: switch the case of charactergu: change characters to lower casegU: change characters to upper caseSometimes, we want to add a pair of characters to existing text objects. The
ys operator provided by vim-surround
is used for that purpose. To use it, the format is
Suppose we have the following texts, and we want to surround the word welcome
with a pair of square bracket ([])
# | indicate cursor position
"wel|come to a new world"Our key strokes should be ysiw]1
The above text now becomes:
"[welcome] to a new world"If you want to surround "welcome to a new world" with (), you can use ysi")2
When we are browsing the help file, we may want to check the doc for a keyword
quickly. For example, when the cursor is in the keyword clipboard (keywords
in the help files are colored as opposed to the regular text), how do we check
its documentation immediately?
It is very simple: just press K, and you will go the documentation of the
keyword. You can also press Ctrl+] to go to the
documentation.
If you have enabled mouse support in nvim (set mouse=a), you can also double
click the keyword to open its documentation. If you are using mintty
terminal, clicking the keyword while you are pressing Ctrl will
also work.
By the way, to go back to previous position in the help file, press Ctrl+O or Ctrl+T.
References
textwidth in Nvim#For text files such as Markdown, LaTeX, we may want to restrict the line length
to 80 characters at most for better readability. To set line length of the file,
we should use textwidth option:
Maximum width of text that is being inserted. A longer line will be broken after white space to get this width. A zero value disables this
Add the following setting to your init.vim should work:
augroup my_textwidth
au!
autocmd FileType text,markdown,tex setlocal textwidth=80
augroup ENDIf we open an existing file, we will find that the file content isn’t changed
automatically. It turns out that we have to manually format the existing texts.
We can use gggqG to format the entire document. When you type new text, it
will be correctly splitted to next line at textwidth.
References
You can use {count}Ctrl-G to show the full path of current buffer:
{count}CTRL-G Like CTRL-G, but prints the current file name with
full path. If the count is higher than 1, the current
buffer number is also given.To show only the full path of file, press 1 followed by Ctrl-G. To also
show its buffer number, use a count higher than 1, e.g., 2<C-G>.
References
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