Separate command line for textfilter

[mihaon]

I very love the textfilter command. It makes possible to use all the power of the shell commands and brings me closer to my dream "Unix as IDE".

But I want to reduce boilerplate text because I want to use the textfilter very often.

Currently I do:

1. Select text:

foo3
baz5
bar9
foo3
foo3
foo8
foo5
baz1

2. Press Ctrl+e and type textfilter sh -c 'sort -u | grep foo'

But I want to optimize second step to:
2. Press, for example, Ctrl+n and type just sort -u | grep foo

How can I achieve this in micro editor?

[Andriamanitra]

The easiest way is probably to wrap textfilter command in another command like this:

~/.config/micro/init.lua

local micro = import("micro")
local config = import("micro/config")

function init()
    config.MakeCommand(
        "prompt-textfilter",
        function (bufpane)
            local callback = function (resp, canceled)
                if not canceled and resp ~= "" then
                    bufpane:HandleCommand(string.format("textfilter sh -c '%s'", resp))
                end
            end
            micro.InfoBar():Prompt("|> ", "", "Textfilter", nil, callback)
        end,
        config.NoComplete
    )
end

~/.config/micro/bindings.json

{
    "Ctrl-b": "command:prompt-textfilter"
}

A caveat of this approach is that it doesn't properly handle quotes because the bufpane:HandleCommand passes the command as a string to micro's command line parser. Arguably more proper solution would be to use shell.JobSpawn (see help plugins), but it would be more complicated as you'd need to figure out how to get the selection(s) and feed them to the job's stdin.