Tips and Tricks

How can I use fennel to configure vis?

Add this to your ~/.configure/vis/visrc.lua

require('vis')

local fennel = require("fennel")
table.insert(package.loaders or package.searchers, fennel.searcher)

local config = require("config")

Create an example config called ~/.configure/vis/config.fnl

(vis.events.subscribe vis.events.WIN_OPEN
                      (fn [win]
                        (vis:command "set number on")
                        (vis:command "set autoindent on")
                        (vis:command "set tabwidth 4")
                        (vis:command "set expandtab on")
                        (vis:command "set ignorecase on")))

(vis:map vis.modes.NORMAL ";;" :<vis-window-next>)

Make sure that the path to fennel.lua is ~/.config/vis/fennel.lua

How can I spellcheck the current file?

:!aspell -t -c $vis_filepath

How do I open the current file in a repl?

Lua:

:!lua -i $vis_filename

Python:

:!python -i $vis_filename

Guile Scheme:

:!guile -l $vis_filename

Javascript:

!node -i -e "$(< $vis_filename)"

How do I wrap lines to 80 characters wide?

Using command mode, pipe selected text into fold or wrap:

:|fold -w 80 -s

:|wrap -w 80

Integrate with external window manager

From the README:

There exist plans to use a client/server architecture, delegating window management to your windowing system or favorite terminal multiplexer.

See also issue #130.

That said, there are some workarounds:

vis:command_register('xsp', function(argv)
	local file = vis.win.file
	local path = argv[1] or file.path
	if not os.getenv("DISPLAY") then
		vis:info("Error: $DISPLAY doesn't exist")
		return
	end
	local cmd = string.format('st -e vis "%s" &', path)
	os.execute(cmd)
end, "Open file in a new X11 window")

vis:command_register('tsp', function(argv)
	local file = vis.win.file
	local path = argv[1] or file.path
	local fifo = os.getenv("DVTM_CMD_FIFO")
	if not fifo then
		vis:info("Error: $DVTM_CMD_FIFO doesn't exist")
		return
	end
	local cmd = string.format([[echo 'create "vis %s"' >> %s]],
		path:gsub(" ", "\\ "), fifo)
	os.execute(cmd)
end, "Open file in a new dvtm(1) window")