readline in function call with space in prompt.

Not on a machine with latest R at moment so not ruling out something there, but it is working fine for me.
Karl

R version 4.0.2 (2020-06-22)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 19041)

------------------------------

Message: 9
Date: Tue, 9 Feb 2021 10:21:58 +1300
From: Rolf Turner <r.turner at auckland.ac.nz>
To: Jeremie Juste <jeremiejuste at gmail.com>
Cc: r-help at r-project.org
Subject: Re: [R] readline in function call with space in prompt.
Message-ID: <20210209102158.5b04117d at rolf-Latitude-E7470>
Content-Type: text/plain; charset="windows-1252"


On Mon, 08 Feb 2021 14:28:33 +0100

Hello,

I have noticed a behavior that I don't understand. When I call the
following function from the prompt.
test <- function(){
    a <- readline("selection: ")
    a
}

test()
selection: |

I can only type one character and the readline function exits before
I can press enter.

however

test1 <- function(){
    a <- readline("selection:")
    a
}

test1()
selection:|

works as expected.

selection: abc[Ret]

However calling directly readline with a space in the prompt does
what I would expect.

a <- readline("selection: ")
selection: abc[Ret]
a
"abc"

It is the expected behavior or am I missing something?

Works fine for me, with or without the space in the prompt string.
There *must* be something flaky in your system, but I'm damned if I can
come up with any useful suggestions for tracking down just where that
flakiness lies.  Sorry.

Perhaps try re-installing R???

cheers,

Rolf Turner

--
Honorary Research Fellow
Department of Statistics
University of Auckland
Phone: +64-9-373-7599 ext. 88276