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[Bug-readline] Echoing of control chars in readline
From: |
Joe Peterson |
Subject: |
[Bug-readline] Echoing of control chars in readline |
Date: |
Mon, 14 Jul 2008 07:45:16 -0600 |
User-agent: |
Thunderbird 2.0.0.14 (X11/20080620) |
Hi all,
I patched the Linux kernel a few months ago (change appeared in 2.6.25)
to allow control chars to be echoed (the "stty echoctl" functionality) -
this had been missing in previous kernels, and it was something that was
missing in Linux but existed in most/all other Unix variants.
I now notice that these echos are also suppressed by readline. I.e., if
I hit ctrl-c on the command line, no "^C" appears. To be consistent
with the kernel tty behavior, would it make sense to add this ability to
readline? I can imagine it would be useful to know, e.g., that I hit
ctrl-c after typing a command (this canceling it) in a shell rather than
hitting enter, but as it stands now, they are visually the same, so
looking at previous commands in the shell window does not give this
info. Thoughts?
-Joe
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