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On 3/16/2016 10:00 AM, Adam Dinwoodie wrote:
On Wed, Mar 16, 2016 at 08:34:45AM -0400, Ken Brown wrote:On 3/16/2016 7:45 AM, Adam Dinwoodie wrote:Here's an interesting bug: normally in a Bash session in MinTTY, backspace and Ctrl+H both delete the previous character, as expected. However, after running texconfig and returning to the shell, both the backspace key and Ctrl+H appear to just print "^H" to the terminal. It looks like this is genuinely the terminal trying to render a backspace character, rather than just backspacing, given the following: $ printf ^H | xxd 00000000: 08 . (To get that, I typed "printf {backspace} | xxd".) It's not clear to me whether this is Bash, MinTTY or texconfig that's misbehaving. Ctrl+W to delete a word, Ctrl+R to get (for me) fzf's history search, and using the up and down arrows to navigate history all work. Running Vim, opening a new Bash shell from within the duff one, or SSHing to another box has Ctrl+H working just fine within that process, but the bugged behaviour resumes when I return to the original Bash shell.I can't reproduce this on my system. I tried 'texconfig --help' and 'texconfig conf'. What's the precise texconfig command that you used?I'm just running `texconfig`, with no arguments. There's a warning prompt, that you press Enter to clear, then there's an interactive menu that appears -- I'm assuming it's something about that interactive menu that's causing the problem.
In the interactive case, texconfig calls texconfig-dialog, which calls dialog.
Turns out, after some digging, MinTTY's "Keys" > "Backspace sends ^H" setting is critical here -- my .minttyrc has `BackspaceSendsBS=yes`, but if I remove that line and restart MinTTY, everything works fine. If I add that setting to a fresh Cygwin install that contains only the Base packages, texlive-collection-basic, and their dependencies, I can reproduce the issue. That probably explains why you can't reproduce it, but it still seems like a bug -- I wouldn't expect backspace behaviour to change in that fashion regardless of that bit of configuration.
So it appears to be a MinTTY/dialog issue. Ken -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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