jayvn / vimcmdline

Send code to command line interpreter

vimcmdline: Send lines to interpreter

This plugin sends lines from either Vim or Neovim to a command line interpreter. Supported file types are haskell, julia, lisp, matlab, prolog, python, ruby and sh. The interpreter may run in a Tmux pane or in a Neovim built-in terminal. The main advantage of running the interpreter in a Neovim terminal is that the output is colorized, as in the screenshot below:

How to install

Copy the directories ftplugin, plugin and syntax and their files to your ~/.vim or ~/.config/nvim directory, or use a plugin manager like Vim-Plug, Vundle, Pathogen, Neobundle, or other.

Usage

If you are editing one of the supported file types, in Normal mode do:

• <LocalLeader>s to start the interpreter.

• <Space> to send the current line to the interpreter.

• <LocalLeader>q to send the quit command to the interpreter.

For languages that can source chunks of code:

• In Visual mode, press:

  • <Space> to send a selection of text to the interpreter.

• And, in Normal mode, press:

  • <LocalLeader>p to send from the line to the end of paragraph.

  • <LocalLeader>b to send block of code between two closest marks.

  • <LocalLeader>f to send the entire file to the interpreter.

Options

Below are examples of how to set the options in your vimrc:

let cmdline_vsplit = 1        " Split the window vertically
let cmdline_esc_term = 1      " Remap <Esc> to :stopinsert in Neovim terminal
let cmdline_in_buffer = 0     " Start the interpreter in a Neovim buffer
let cmdline_term_height = 15  " Initial height of interpreter window or pane
let cmdline_term_width = 80   " Initial width of interpreter window or pane
let cmdline_tmp_dir = '/tmp'  " Temporary directory to save files
let cmdline_outhl = 1         " Syntax highlight the output

If you are using Neovim, you can use its syntax highlight capabilities to colorize the interpreter output, and you can customize the colors in your vimrc. The example of customization below is for a terminal emulator that supports 256 colors (see in Neovim :h highlight-ctermfg):

if &t_Co == 256
    let cmdline_color_input = 247
    let cmdline_color_normal = 39
    let cmdline_color_number = 51
    let cmdline_color_integer = 51
    let cmdline_color_float = 51
    let cmdline_color_complex = 51
    let cmdline_color_negnum = 183
    let cmdline_color_negfloat = 183
    let cmdline_color_date = 43
    let cmdline_color_true = 78
    let cmdline_color_false = 203
    let cmdline_color_inf = 39
    let cmdline_color_constant = 75
    let cmdline_color_string = 79
    let cmdline_color_stderr = 33
    let cmdline_color_error = 15
    let cmdline_color_warn = 1
    let cmdline_color_index = 186
endif

If you prefer that the output is highlighted using you current colorscheme, put in your vimrc:

let cmdline_follow_colorscheme = 1