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Date: Thu, 19 Jul 2012 11:37:33 -0400
From: Ryan Johnson <ryan DOT johnson AT cs DOT utoronto DOT ca>
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To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject: mintty and modifier keys
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Hi all (mostly Andy),

I notice that mintty 1.1 handles certain key combinations differently 
than xterm:

ctrl+enter produces 0x1e (RS) vs. CR in xterm
alt+enter produces ESC CR vs. nothing at all in xterm

ctrl+shift+<letter> emits the unicode C2 control codepoints (0xc281 
through 0xc29a); xterm emits the C0 control value as if shift were 
unpressed.

So, two questions:
1. Is there a particular reason for this behavior? Perhaps rxvt or some 
other non-xterm terminal emulator does it?
2. Is there documentation somewhere of what convention mintty follows 
for the various special cases?

(these questions are partly triggered by frustration at shift+enter not 
working, which lead to me finding a reasonably sane proposal to fix 
these kinds of terminal woes [1]; I was surprised to find that mintty 
can already distinguish some key presses that xterm can't)

[1] www.leonerd.org.uk/hacks/fixterms/

Thanks,
Ryan


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