translate.nvim

Features

• You can use any command you like for translation.
  • Google translate API (default)
  • translate-shell
  • DeepL API Pro/Free
• The results of the translation can be output in a variety of ways.
  • Floating window
  • Split window
  • Insert to the current buffer
  • Replace the original text
  • Set the register
• The translation command and output method can be specified as command arguments.
• In addition to the above presets, you can add your own functions.

Requirements

• neovim 0.8+

The default Google Translate requires nothing but curl.

If you use translate-shell, you need to install trans command.

If you use DeepL API Pro/Free, you need the authorization key for DeepL API Pro/Free. In addition, you need curl to send the request.

Quick start

Install

With any plugin manager you like (e.g. vim-plug, packer.nvim, dein.vim)

Setup

This plugin has default settings, so there is no need to call setup if you want to use it as is.

This is my setting.

let g:deepl_api_auth_key = 'MY_AUTH_KEY'
lua <<EOL
require("translate").setup({
    default = {
        command = "deepl_pro",
    },
    preset = {
        output = {
            split = {
                append = true,
            },
        },
    },
})
EOL

See help for available options.

Command

This plugin provides :Translate.

I put the quote from the help in the fold.

:Translate

:[range]Translate {target-lang} [{-options}...]

    {target-lang}: Required. The language into which the text should be
    translated. The format varies depending on the external command used.

    |:Translate| can take |:range|. |v|, |V| and |CTRL-V| are supported. If it was
    not given, |:Translate| treats current cursor line.

    available options:
        - '-source='
            The language of the text to be translated.
        - '-parse_before='
            The functions to format texts of selection. You can
            use a comma-separated string. If omitted,
            |translate-nvim-option-default-parse-before|.
        - '-command='
            The extermal command to use translation. If omitted,
            |translate-nvim-option-default-command| is used.
        - '-parse_after='
            The functions to format the result of extermal
            command. You can use a comma-separated string.
            If omitted, |translate-nvim-option-default-parse-after|.
        - '-output='
            The function to pass the translation result. If
            omitted, |translate-nvim-option-default-output|.
        - '-comment'
            Special option, used as a flag. If this flag is set
            and the cursor is over a comment, whole comment is
            treated as a selection.


    Use <Cmd> for mapping.
    If you cannot use it, you must change the format with nmap and xmap.


    nnoremap me <Cmd>Translate EN<CR>
    xnoremap me <Cmd>Translate EN<CR>
    
    Another way.

    nnoremap me :<C-u>Translate EN<CR>
    xnoremap me :Translate EN<CR>

Translate the word under the cursor

You can use this mapping.

nnoremap <space>tw viw:Translate ZH<CR>