Vim Rosetta

vim-rosetta

A Vim plugin that provides translation features for code comments and variable naming using Google Translate API.

Features

• Comment Translation: Translate code comments under the cursor to any language
• Word/Selection Translation: Translate the word under cursor or selected text
• Buffer Translation: Translate entire buffer and display in a new split window
• Auto Translation: Automatically translate comments on cursor hold
• Variable Name Completion: Japanese to English translation for variable naming (snake_case, UPPER_CASE, camelCase, PascalCase)
• Supports multi-line comments
• Works with various comment styles (//, /* */, #, ")

Installation

Using [vim-plug](https://github.com/junegunn/vim-plug)

Plug 'mattn/vim-rosetta'

Using [dein.vim](https://github.com/Shougo/dein.vim)

call dein#add('mattn/vim-rosetta')

Using Vim 8+ native package manager

mkdir -p ~/.vim/pack/plugins/start
cd ~/.vim/pack/plugins/start
git clone https://github.com/mattn/vim-rosetta.git

Requirements

• Vim 8.1+ with +popup feature, or Neovim 0.4+
• curl command

Usage

Comment Translation

https://github.com/user-attachments/assets/668b9c3c-1996-4a66-9aa9-ee92187963eb

Place your cursor on a comment and run:

:RosettaTranslateComment

Or use the default mapping:

tc

Word/Selection Translation

Place your cursor on a word (or select text in visual mode) and use the default mapping:

tt

In visual mode, the selected text will be translated.

Buffer Translation

Translate the entire buffer and display the result in a new vertical split window:

:RosettaTranslateBuffer

Or translate a specific range:

:10,20RosettaTranslateBuffer
:'<,'>RosettaTranslateBuffer  " Visual selection

Auto Translation

Enable automatic translation when cursor stops on a comment:

let g:rosetta_translate_c