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Annotation of 43BSD/usr.lib/lib2648/escseq.c, revision 1.1.1.1

1.1       root        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) 4/30/85";
                      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: 
                     18: escseq(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: }

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