projects / unix-history / blame
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1 | .\" Copyright (c) 1980 The Regents of the University of California. |
| 2 | .\" All rights reserved. | |
| 909ac6b1 | 3 | .\" |
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4 | .\" Redistribution and use in source and binary forms are permitted |
| 5 | .\" provided that the above copyright notice and this paragraph are | |
| 6 | .\" duplicated in all such forms and that any documentation, | |
| 7 | .\" advertising materials, and other materials related to such | |
| 8 | .\" distribution and use acknowledge that the software was developed | |
| 9 | .\" by the University of California, Berkeley. The name of the | |
| 10 | .\" University may not be used to endorse or promote products derived | |
| 11 | .\" from this software without specific prior written permission. | |
| 12 | .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 13 | .\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 14 | .\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 15 | .\" | |
| 1c15e888 | 16 | .\" @(#)intro.0 6.2 (Berkeley) 3/17/89 |
| 909ac6b1 KM |
17 | .\" |
| 18 | .tp | |
| 19 | .(l C | |
| 20 | .ps 12 | |
| 21 | .ft B | |
| 22 | Screen Updating and Cursor Movement Optimization: | |
| 23 | .fl | |
| 24 | A Library Package | |
| 25 | .ft | |
| 26 | .ps | |
| 27 | .sp | |
| 28 | .i "Kenneth C. R. C. Arnold" | |
| 29 | .sp | |
| 30 | Computer Science Division | |
| 31 | Department of Electrical Engineering and Computer Science | |
| 32 | University of California, Berkeley | |
| 33 | Berkeley, California 94720 | |
| 34 | .sp 3 | |
| 35 | .bi ABSTRACT | |
| 36 | .sp 2 | |
| 37 | .)l | |
| 38 | .(q | |
| 39 | .pp | |
| 40 | This document describes a package of C library functions | |
| 41 | which allow the user to: | |
| 42 | .ie t .ip \ \ \ \(bu | |
| 43 | .el .ip 1) | |
| 44 | update a screen with reasonable optimization, | |
| 45 | .ie t .ip \ \ \ \(bu | |
| 46 | .el .ip 2) | |
| 47 | get input from the terminal | |
| 48 | in a screen-oriented fashion, | |
| 49 | and | |
| 50 | .ie t .ip \ \ \ \(bu | |
| 51 | .el .ip 3) | |
| 52 | independent from the above, move the cursor optimally | |
| 53 | from one point to another. | |
| 54 | .pp | |
| 55 | These routines all use the | |
| 56 | \*(tc \*(db to describe the capabilities of the terminal. | |
| 57 | .)q | |
| 58 | .b Acknowledgements | |
| 59 | .pp | |
| 60 | This package would not exist | |
| 61 | without the work of Bill Joy, | |
| 62 | who, | |
| 63 | in writing his editor, | |
| 64 | created the capability to generally describe terminals, | |
| 65 | wrote the routines which read this \*(db, | |
| 66 | and, most importantly, | |
| 67 | those which implement optimal cursor movement, | |
| 68 | which routines I have simply lifted nearly intact. | |
| 69 | Doug Merritt and Kurt Shoens also were extremely important, | |
| 70 | as were both willing to waste time listening to me rant and rave. | |
| 71 | The help and/or support of | |
| 72 | Ken Abrams, | |
| 73 | Alan Char, | |
| 74 | Mark Horton, | |
| 75 | and | |
| 76 | Joe Kalash, | |
| 77 | was, and is, | |
| 78 | also greatly appreciated. | |
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79 | .sp 2 |
| 80 | Revised 16 April 1986 |