jeebak

-- load standard vis module, providing parts of the Lua API
require('vis')

function FilterRange(file, range, pos, filter)
    -- Based on: http://martanne.github.io/vis/doc/#Vis:operator_new
    local status, out, err = vis:pipe(file, range, filter)
    if not status then
        vis:info(err)
    else
        file:delete(range)