1 /* 2 * Copyright (c) 1980 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 */ 6 7 #ifndef lint 8 static char sccsid[] = "@(#)escseq.c 5.1 (Berkeley) 04/30/85"; 9 #endif not lint 10 11 /* 12 * escseq: get us out of any escape sequence we are in the middle of 13 * and put us into the requested kind of escape sequence. 14 */ 15 16 #include "2648.h" 17 escseq(mode)18escseq(mode) 19 int mode; 20 { 21 if (mode == _escmode) 22 return; 23 /* Get out of previous mode */ 24 switch (_escmode) { 25 case NONE: 26 break; 27 case ESCD: 28 if (mode == TEXT) { 29 outchar('s'); 30 _escmode = mode; 31 return; 32 } 33 case ESCP: 34 case ESCM: 35 outchar('Z'); /* no-op */ 36 break; 37 case TEXT: 38 outstr("\33*dT"); 39 break; 40 } 41 /* Get into new mode */ 42 switch (_escmode = mode) { 43 case NONE: 44 break; 45 case ESCD: 46 outstr("\33*d"); 47 break; 48 case ESCP: 49 outstr("\33*p"); 50 break; 51 case ESCM: 52 outstr("\33*m"); 53 break; 54 case TEXT: 55 outstr("\33*dS"); 56 break; 57 } 58 } 59