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Share two unpopular but super practical Vim use skills, many novices are not very clear about this, in order to help you solve this problem, the following small series will explain in detail for everyone, people who have this need can learn, I hope you can harvest.

Recently, I encountered two new problems when using VIM, which I think are quite valuable. Now I will summarize the treatment method and share it with you.

VIM delete (backspace) key cannot be deleted to the left

Open vim editing text under MacOS, enter insert mode, delete several saved characters before editing, press delete key to delete them, never thought of it! Only hear "duang", unexpectedly invalid!

One thing to be clear, there is no backspace key in the Mac keyboard, there is a key called delete, in fact, equivalent to the backspace key under Window, when editing text, press has the function of deleting characters to the left.

the cause of the problem

An online search revealed that the reason for the irritating question at the beginning was:

VIM uses compatible mode, or sets the backspace variable to null. In fact, compatible mode is the configuration of VIM for VI compatibility. Its role is to make the operation behavior of VIM consistent with the specification and VI. In this mode, the backspace configuration is empty. This means that backspace cannot delete indent, end of line, and start.

By default, pressing delete (backspace) will delete only the text inserted in this insertion mode, which is related to the mode setting of backspace, which can be set to the following three modes:

0 same as ":set backspace=" (Vi compatible) 1 same as ":set backspace=indent,eol" 2 same as ":set backspace=indent,eol,start"

the solution of the problem

Once we know the reason, we can solve it. We just need to set the backspace mode to 2.

Edit the ~/.vimrc file and add the following content and save it. Next time you enter VIM, you can use the delete (backspace) key arbitrarily in insert mode:

"Fix delete/backspce key failure in insert mode set backspace=2

Use vim-airline to beautify your status bar

Before has been using Powerline status bar beautification, the system upgraded to macOS 10.15.5 suddenly found that it can not be used normally.

After using Google search to solve the problem, I found another lighter and more powerful status bar beautification artifact vim-airline.

vim-airline is a plug-in that displays a friendlier status bar in VIM to make you happier at work!

Project address: github.com/vim-airline/vim-airline

First look at the effect, isn't it beautiful!

Install vim-airline

vim-airline is also very easy to use, you just need to download vim-airline plugin and put it in the plugin directory under VIM installation directory.

$ git clone https://github.com/vim-airline/vim-airline.git $ cp vim-airline/plugin/airline.vim ~/.vim/plugin/ $ ls ~/.vim/plugin airline-themes.vim airline.vim

Of course, you can also install vim-airline plugins directly using various VIM plugin managers, such as:

Plugin ManagerInstall with... [Pathogen]git clone https://github.com/vim-airline/vim-airline ~/.vim/bundle/vim-airline

Remember to run :Helptags to generate help tags[NeoBundle]NeoBundle 'vim-airline/vim-airline'[Vundle]Plugin 'vim-airline/vim-airline'[Plug]Plug 'vim-airline/vim-airline'[VAM]call vam#ActivateAddons([ 'vim-airline' ])[Dein]call dein#add('vim-airline/vim-airline')[minpac]call minpac#add('vim-airline/vim-airline')pack feature (native Vim 8 package feature)git clone https://github.com/vim-airline/vim-airline ~/.vim/pack/dist/start/vim-airline

Remember to run :helptags ~/.vim/pack/dist/start/vim-airline/doc to generate help tags

Configure vim-airline

After vim-airline is installed, it is basically ready to use. If you need to customize some individual requirements, you can also configure them through the.vimrc file. Here is my profile, you can refer to it below:

if ! exists('g:airline_symbols') let g:airline_symbols = {} endif let g:airline_left_sep = '$>' let g: airline_left_alt_sep = '' let g:airline_right_sep ='' let g: airline_right_alt_sep = '' let g:airline_symbols.linenr = '¶' let g:airline_symbols.branch = '' "Yes No Open tablet g:airline#extensions#tablet #enabled = 1 let g:airline_theme='powerlineish' set laststatus=2 set encoding=utf-8 set t_Co=256 set fillchars+=stl:\ ,stlnc:\ set term=xterm-256color set termencoding= utf-8 set compatible set number syntax enable set backspace=2

vim-airline In addition to its own style, you can also find more beautiful and useful themes through the official theme repository vim-airline-themes project yo!

Project address: github.com/vim-airline/vim-airline-themes

Did reading the above help you? If you still want to have further understanding of related knowledge or read more related articles, please pay attention to the industry information channel, thank you for your support.

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