/* gans.c - get an answer from the user */ #ifndef lint static char ident[] = "@(#)gans.c,v 1.1.1.1 1993/01/30 04:41:25 jtc Exp"; #endif /* lint */ #include "../h/mh.h" #include gans (prompt, ansp) register char *prompt; register struct swit *ansp; { register int i; register char *cp; register struct swit *ap; char ansbuf[BUFSIZ]; for (;;) { printf ("%s", prompt); (void) fflush (stdout); cp = ansbuf; while ((i = getchar ()) != '\n') { if (i == EOF) return 0; if (cp < &ansbuf[sizeof ansbuf - 1]) { #ifdef LOCALE i = (isalpha(i) && isupper(i)) ? tolower(i) : i; #else if (i >= 'A' && i <= 'Z') i += 'a' - 'A'; #endif *cp++ = i; } } *cp = 0; if (ansbuf[0] == '?' || cp == ansbuf) { printf ("Options are:\n"); for (ap = ansp; ap -> sw; ap++) printf (" %s\n", ap -> sw); continue; } if ((i = smatch (ansbuf, ansp)) < 0) { printf ("%s: %s.\n", ansbuf, i == -1 ? "unknown" : "ambiguous"); continue; } return i; } }