[Bug] Multi-line Ctrl-V support

[mRrvz]

Bug reports

I'm trying to insert multi-line code snippet, e.g:

res = {}
for i=1,5 do
    table.insert(res, 1)
end

and i get this:

end

but buffer is valid — if i press enter key, code execute normally.

Expected Behavior

Correct display of the code snippet.

Details

I looked at the source code, and it said that \n translates to \r.
After that, I tried to make my Ctrl-V handler like this:

Key: prompt.ControlV,
Fn: func(buf *prompt.Buffer) {
    text := buf.Text()
    buf.DeleteBeforeCursor(len(text))
    buf.InsertText(strings.Replace(text, "\r", "\n", -1), false, true)
}

but in this case, Render update screen invalid and i get (for every keystroke, e.g changing the cursor keys: left, right) something like this:

myapp.s1-master> res = {}
for i=1,5 do
    table.insert(res, 1)
myapp.s1-master> res = {}
for i=1,5 do
    table.insert(res, 1)
myapp.s1-master> res = {}
for i=1,5 do
    table.insert(res, 1)
myapp.s1-master> res = {}
for i=1,5 do
    table.insert(res, 1)
myapp.s1-master> res = {}
for i=1,5 do
    table.insert(res, 1)
myapp.s1-master> res = {}
for i=1,5 do
    table.insert(res, 1)
end

looking at the source code (render.go), I realized that at the moment only single lines are supported :(

[mRrvz]

I found a fork that solves this issue: https://github.com/binaek89/go-prompt