Hi,

there is a minor glitch with Ctrl-C on Windows:

1. Start Rterm.exe
2. Press Ctrl-C (without ENTER afterwards) to generate a user interrupt signal.
3. Type Sys.sleep(1e6) + ENTER.
4. The user interrupt in Step 2 causes Sys.sleep() in Step 3 to be interrupted.

I can reproduce this behavior on Windows 7 64-bit and 'Rterm.exe' with
R v2.13.0 (2011-04-13), v2.15.0 Patched (2012-05-26 r59447), and Devel
(2012-06-20 r59586).

It occurs neither with 'R' on OSX and R v2.15.0 (2012-03-30) nor with
'R' on Linux and R v2.15.0 Patched (2012-05-01 r59304).  In those
cases, pressing Ctrl-C also advances the prompt (just as if Ctrl-C was
followed by an ENTER).  This is not the case with Rterm on Windows,
where pressing Ctrl-C does not advance the prompt.  However, pressing
Ctrl-C and then ENTER, gives an empty line between the two prompts
(just as if Ctrl-C was followed by an ENTER that "didn't get
through").

/Henrik

PS. I am aware of the recent Bug/Fix #14948
[https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=14948].

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