Scratch

Scratch is a Neovim plugin that lets you create temporary scratch buffers to write and evaluate code snippets without saving them to a file. Inspired by Emacs scratch buffers, this plugin provides a seamless way to test code in different languages without cluttering your workspace with temporary files.

Features

• Open a scratch buffer
• Automatically sets the scratch buffer content to the selected text if in visual mode
• Evaluate the code in the scratch buffer
• Automatically detect the language based on the active buffer or manually specify it.

Installation & Configuration

Note: This plugin is language-independent. You need to manually configure the run_cmd for each language, which should read code from stdin and execute it.

• example using lazy

{
  "SalahDevp/scratch.nvim",
  config = function()
    local scratch = require("scratch")

    scratch.setup({
      languages = {
        lua = {
          run_cmd = "lua",
        },
        python = {
          run_cmd = "python3",
        },
      },
    })

    vim.keymap.set("n", "<leader>bs", "<cmd>Scratch buf<cr>")
    vim.keymap.set("n", "<leader>be", "<cmd>Scratch eval<cr>")
  end,
}

Commands

• :Scratch buf [language] Opens a scratch buffer for the specified language or uses the language of the active buffer if not specified.
• :Scratch eval runs the code in the scratch buffer

Feature Ideas

Here are some features that I could add, or feel free to contribute them via a pull request:

• Possibility to configure boilerplate code for specific languages (e.g., adding a main function when creating a C scratch buffer).
• Open the buffer in a new split/tab.

License

This plugin is licensed under the MIT License. See the LICENSE file for more information.

Contributing

Contributions are welcome! If you'd like to suggest a feature or report a bug, please open an issue or submit a pull request. For major changes, please open an issue first to discuss what you would like to change.