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man1: document mouse keystrokes in acme, sam, 9term

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Change-Id: Id99ce9a143a21009d93a1c6ba2d1f84a3588649f
Reviewed-on: https://plan9port-review.googlesource.com/2942
Reviewed-by: Russ Cox <rsc@swtch.com>
This commit is contained in:
Russ Cox 2017-07-15 20:23:49 -06:00
parent b15fd97627
commit 35abfa1b39
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18
man/man1/acme.1
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@ -645,6 +645,24 @@ environment variable
.B $acmeaddr
is created that holds, in the form interpreted by button 3,
the fully-qualified address of the extra argument.
.SS "Simulated buttons
For systems without a three-button mouse, the keyboard modifier
keys can be used to modify the effect of the main mouse button.
On Unix systems, the Control key changes the main button to button 2,
and the Alt key changes it to button 3.
On Mac systems, the Option key changes the main button to button 2,
and the Command key changes it to button 3.
Pressing the key after the button is held down adds the button to form
a chord, so that for example on Macs selecting text with the trackpad
button and then typing Option without letting go of the button will
cause a 1-2 chord, cutting the selection.
On Mac systems, the usual keyboard shortcuts
Command-C, -V, -X, and -Z invoke
copy, paste, cut, and undo,
and Command-Shift-Z invokes redo,
as in other programs.
Especially on Mac laptops, these keyboard shortcuts are
typically much less awkward than the equivalent chords.
.SS "Support programs
.I Win
creates a new