int getcommand(char *msgstr, char *comstr)
/* Reads in a command and acts on it */
{
int ch, counter, len = strlen(msgstr);
scroll(UP, 0, 1, 24, 80, 24, WHITE);
for (counter = 0; counter < len; counter++)
{
if (isupper(msgstr[counter]))
writef(counter + 1, 24, COMMANDCOLOR, 1, "%c", msgstr[counter]);
else
writef(counter + 1, 24, LOWCOMMANDCOLOR, 1, "%c", msgstr[counter]);
}
do
ch = toupper(getkey());
while ((strchr(comstr, ch) == NULL) && (ch != ESC));
clearinput();
return((ch == ESC) ? -1 : strlen(comstr) - strlen(strchr(comstr, ch)));
} /* getcommand */
/* Allows the user to edit a string with only certain characters allowed -
Returns TRUE if ESC was not pressed, FALSE is ESC was pressed. */
int editstring(char *s, char *legal, int maxlength)
{
int c, len = strlen(s), pos = len, insert = TRUE;
changecursor(insert);
do {
writef(1, 25, WHITE, 79, "%s", s);
gotoxy(pos + 1, 25);
switch(c = getkey()) {
case HOMEKEY :
pos = 0;
break;
case ENDKEY :
pos = len;
break;
case INSKEY :
insert = !insert;
changecursor(insert);
break;
case LEFTKEY :
if (pos > 0)
pos--;
break;
case RIGHTKEY :
if (pos < len)
pos++;
break;
case BS :
if (pos > 0) {
movmem(&s[pos], &s[pos - 1], len - pos + 1);
pos--;
len--;
}
break;
case DELKEY :
if (pos < len) {
movmem(&s[pos + 1], &s[pos], len - pos);
len--;
}
break;
case CR :
break;
case UPKEY :
break;
case DOWNKEY :
break;
case ESC :
break;
default :
if (((legal[0] == 0) || (strchr(legal, c) != NULL)) &&
((c >= ' ') && (c <= '~')) &&
(len < maxlength)) {
if (insert) {
memmove(&s[pos + 1], &s[pos], len - pos + 1);
len++;
}
else if (pos >= len)
len++;
s[pos++] = c;
}
break;
} /* switch */
s[len] = 0;
}
while ((c!=UPKEY)&&(c!=DOWNKEY)&&(c!=CR)&&(c!=ESC));
clearinput();
changecursor(FALSE);
setcursor(nocursor);
return(c != ESC);
} /* editstring */
