107 lines
3.5 KiB
Plaintext
107 lines
3.5 KiB
Plaintext
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.\" Copyright (c) 1980, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)intro.0 8.1 (Berkeley) 6/4/93
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.\"
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.tp
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.(l C
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.ps 12
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.ft B
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Screen Updating and Cursor Movement Optimization:
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.fl
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A Library Package
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.ft
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.ps
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.sp
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.i "Kenneth C. R. C. Arnold"
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.i "Elan Amir"
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.sp
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Computer Science Division
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Department of Electrical Engineering and Computer Science
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University of California, Berkeley
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Berkeley, California 94720
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.sp 3
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.bi ABSTRACT
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.sp 2
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.)l
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.(q
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.pp
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This document describes a package of C library functions
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which allow the user to:
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.ie t .ip \ \ \ \(bu
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.el .ip 1)
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update a screen with reasonable optimization,
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.ie t .ip \ \ \ \(bu
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.el .ip 2)
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get input from the terminal
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in a screen-oriented fashion,
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and
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.ie t .ip \ \ \ \(bu
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.el .ip 3)
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independent from the above, move the cursor optimally
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from one point to another.
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.pp
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These routines all use the
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\*(tc \*(db to describe the capabilities of the terminal.
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.)q
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.b Acknowledgements
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.pp
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This package would not exist
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without the work of Bill Joy,
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who,
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in writing his editor,
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created the capability to generally describe terminals,
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wrote the routines which read this \*(db,
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and, most importantly,
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those which implement optimal cursor movement,
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which routines I have simply lifted nearly intact.
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Doug Merritt and Kurt Shoens also were extremely important,
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as were both willing to waste time listening to me rant and rave.
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The help and/or support of
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Ken Abrams,
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Alan Char,
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Mark Horton,
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and
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Joe Kalash,
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was, and is,
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also greatly appreciated.
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.i "Ken Arnold 16 April 1986"
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.pp
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The help and/or support of Kirk McKusick and Keith Bostic (public vi!)
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was invaluable in bringing the package ``into the 90's'', which now
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includes completely new data structures and screen refresh optimization
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routines.
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.i "Elan Amir 29 December 1992"
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