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.(l C
.ps 12
.ft B
Screen Updating and Cursor Movement Optimization:
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A Library Package
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.ps
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.i "Kenneth C. R. C. Arnold"
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Computer Science Division
Department of Electrical Engineering and Computer Science
University of California, Berkeley
Berkeley, California  94720
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.bi ABSTRACT
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.)l
.(q
.pp
This document describes a package of C library functions
which allow the user to:
.ie t .ip \ \ \ \(bu
.el .ip 1)
update a screen with reasonable optimization,
.ie t .ip \ \ \ \(bu
.el .ip 2)
get input from the terminal
in a screen-oriented fashion,
and
.ie t .ip \ \ \ \(bu
.el .ip 3)
independent from the above, move the cursor optimally
from one point to another.
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These routines all use the
\*(tc \*(db to describe the capabilities of the terminal.
.)q
.b Acknowledgements
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This package would not exist
without the work of Bill Joy,
who,
in writing his editor,
created the capability to generally describe terminals,
wrote the routines which read this \*(db,
and, most importantly,
those which implement optimal cursor movement,
which routines I have simply lifted nearly intact.
Doug Merritt and Kurt Shoens also were extremely important,
as were both willing to waste time listening to me rant and rave.
The help and/or support of
Ken Abrams,
Alan Char,
Mark Horton,
and
Joe Kalash,
was, and is,
also greatly appreciated.
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Revised 16 April 1986
