date and time created 91/12/22 18:55:14 by bostic

[unix-history] / usr / src / usr.bin / tset / wrterm.c

/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char sccsid[] = "@(#)wrterm.c    5.1 (Berkeley) %G%";
#endif /* not lint */

#include <sys/types.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include "extern.h"

/*
* Output termcap entry to stdout, quoting characters that would give the
* shell problems and omitting empty fields.
*/
void
wrtermcap(bp)
       char *bp;
{
       register int ch;
       register char *p;
       char *t, *sep;

       /* Find the end of the terminal names. */
       if ((t = index(bp, ':')) == NULL)
               err("termcap names not colon terminated");
       *t++ = '\0';

       /* Output terminal names that don't have whitespace. */
       sep = "";
       while ((p = strsep(&bp, "|")) != NULL)
               if (*p != '\0' && strpbrk(p, " \t") == NULL) {
                       (void)printf("%s%s", sep, p);
                       sep = "|";
               }
       (void)putchar(':');
               
       /*
        * Output fields, transforming any dangerous characters.  Skip
        * empty fields or fields containing only whitespace.
        */
       while ((p = strsep(&t, ":")) != NULL) {
               while ((ch = *p) != '\0' && isspace(ch))
                       ++p;
               if (ch == '\0')
                       continue;
               while ((ch = *p++) != '\0')
                       switch(ch) {
                       case '\033':
                               (void)printf("\\E");
                       case  ' ':              /* No spaces. */
                               (void)printf("\\040");
                               break;
                       case '!':               /* No csh history chars. */
                               (void)printf("\\041");
                               break;
                       case ',':               /* No csh history chars. */
                               (void)printf("\\054");
                               break;
                       case '"':               /* No quotes. */
                               (void)printf("\\042");
                               break;
                       case '\'':              /* No quotes. */
                               (void)printf("\\047");
                               break;
                       case '`':               /* No quotes. */
                               (void)printf("\\140");
                               break;
                       case '\\':              /* Anything following is OK. */
                       case '^':
                               (void)putchar(ch);
                               if ((ch = *p++) == '\0')
                                       break;
                               /* FALLTHROUGH */
                       default:
                               (void)putchar(ch);
               }
               (void)putchar(':');
       }
}