view 3rdparty/packages/uemacs/ueansi.c @ 1652:558cab468052

RG fixed a bug in the Vavasour emulator clock2 module. clock2 is now of type Sbrtn instead of Systm. clock.asm has been modified to link to this type.
author boisy
date Sat, 17 Jul 2004 12:20:31 +0000
parents 48c646212b1c
children
line wrap: on
line source

/*
 * The routines in this file provide support for ANSI style terminals
 * over a serial line. The serial I/O services are provided by routines in
 * "termio.c". It compiles into nothing if not an ANSI device.
 */

#include        <stdio.h>
#include        "ueed.h"

#ifdef ANSI

#define NROW    23                      /* Screen size.                 */
#define NCOL    77                      /* Edit if you want to.         */
#define BEL     0x07                    /* BEL character.               */
#define ESC     0x1B                    /* ESC character.               */

extern  int     ttopen();               /* Forward references.          */
extern  int     ttgetc();
extern  int     ttputc();
extern  int     ttflush();
extern  int     ttclose();
extern  int     ansimove();
extern  int     ansieeol();
extern  int     ansieeop();
extern  int     ansibeep();
extern  int     ansiopen();

/*
 * Standard terminal interface dispatch table. Most of the fields point into
 * "termio" code.
 */
TERM    term    = {
        NROW-1,
        NCOL,
        ansiopen,
        ttclose,
        ttgetc,
        ttputc,
        ttflush,
        ansimove,
        ansieeol,
        ansieeop,
        ansibeep
};

ansimove(row, col)
{
        ttputc(ESC);
        ttputc('[');
        ansiparm(row+1);
        ttputc(';');
        ansiparm(col+1);
        ttputc('H');
}

ansieeol()
{
        ttputc(ESC);
        ttputc('[');
        ttputc('K');
}

ansieeop()
{
        ttputc(ESC);
        ttputc('[');
        ttputc('J');
}

ansibeep()
{
        ttputc(BEL);
        ttflush();
}

ansiparm(n)
register int    n;
{
        register int    q;

        q = n/10;
        if (q != 0)
                ansiparm(q);
        ttputc((n%10) + '0');
}

#endif

ansiopen()
{
#ifdef V7
        register char *cp;
        char *getenv();

        if ((cp = getenv("TERM")) == NULL) {
                puts("Shell variable TERM not defined!");
                exit(1);
        }
        if (strcmp(cp, "vt100") != 0) {
                puts("Terminal type not 'vt100'!");
                exit(1);
        }
#endif
        ttopen();
}