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9term: add a "look" menu item (#299)

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Add a menu item which functions similar to acme's `Look` command.

This is copied from 9front. See:
https://code.9front.org/hg/plan9front/rev/1f1596dbca51
https://code.9front.org/hg/plan9front/rev/d2de1d2f7b48
This commit is contained in:
Fazlul Shahriar 2020-01-07 15:02:01 -05:00 • committed by Dan Cross
parent cf6b778799
commit a4e59b3702
4 changed files with 39 additions and 0 deletions
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7
man/man1/9term.1
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@ -285,6 +285,13 @@ containing the selection (typing cursor).
A typical use of this feature is to tell the editor to find the source of an error
by plumbing the file and line information in a compiler's diagnostic.
.PP
The
.B look
menu item searches forward for the contents of the selection within
the window. If a match is found, it becomes the new selection and the
window scrolls to display it. The search wraps around to the beginning
of the windows if the end of the window is reached.
.PP
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,