fix.lua

function read(_sDefault )
    if _sDefault ~= nil and type( _sDefault ) ~= "string" then
        error( "bad argument #1 (expected string, got " .. type( _sDefault ) .. ")", 2 )
    end
    term.setCursorBlink( true )

    local sLine
    if type( _sDefault ) == "string" then
        sLine = _sDefault
    else
        sLine = ""
    end
    local nHistoryPos
    local nPos = #sLine

    local w = term.getSize()
    local sx = term.getCursorPos()

    local function redraw( _bClear )
        local nScroll = 0
        if sx + nPos >= w then
            nScroll = (sx + nPos) - w
        end

        local cx,cy = term.getCursorPos()
        term.setCursorPos( sx, cy )
        local sReplace = (_bClear and " ") or _sReplaceChar
        if sReplace then
            term.write( string.rep( sReplace, math.max( string.len(sLine) - nScroll, 0 ) ) )
        else
            term.write( string.sub( sLine, nScroll + 1 ) )
        end
        term.restoreCursor()
        term.setCursorPos( sx + nPos - nScroll, cy )
    end

    local function clear()
        redraw( true )
    end

    while true do
        local sEvent, param = os.pullEvent()
        if sEvent == "char" then
            -- Typed key
            clear()
            sLine = string.sub( sLine, 1, nPos ) .. param .. string.sub( sLine, nPos + 1 )
            nPos = nPos + 1
            redraw()

        elseif sEvent == "paste" then
            -- Pasted text
            clear()
            sLine = string.sub( sLine, 1, nPos ) .. param .. string.sub( sLine, nPos + 1 )
            nPos = nPos + string.len( param )
            redraw()

        elseif sEvent == "key" then
            if param == keys.enter then
                break

            elseif param == keys.left then
                -- Left
                if nPos > 0 then
                    clear()
                    nPos = nPos - 1
                    recomplete()
                    redraw()
                end

            elseif param == keys.right then
                -- Right
                if nPos < string.len(sLine) then
                    -- Move right
                    clear()
                    nPos = nPos + 1
                    recomplete()
                    redraw()
                else
                    -- Accept autocomplete
                    acceptCompletion()
                end


            elseif param == keys.backspace then
                -- Backspace
                if nPos > 0 then
                    clear()
                    sLine = string.sub( sLine, 1, nPos - 1 ) .. string.sub( sLine, nPos + 1 )
                    nPos = nPos - 1
                    recomplete()
                    redraw()
                end

            elseif param == keys.home then
                -- Home
                if nPos > 0 then
                    clear()
                    nPos = 0
                    recomplete()
                    redraw()
                end

            elseif param == keys.delete then
                -- Delete
                if nPos < string.len(sLine) then
                    clear()
                    sLine = string.sub( sLine, 1, nPos ) .. string.sub( sLine, nPos + 2 )
                    recomplete()
                    redraw()
                end

            elseif param == keys["end"] then
                -- End
                if nPos < string.len(sLine ) then
                    clear()
                    nPos = string.len(sLine)
                    recomplete()
                    redraw()
                end

            end

        elseif sEvent == "term_resize" then
            -- Terminal resized
            w = term.getSize()
            redraw()

        end
    end

    local cx, cy = term.getCursorPos()
    term.setCursorBlink( false )
    term.setCursorPos( w + 1, cy )
    print()

    return sLine
end