[unix-history] / usr / src / games / battlestar / getcom.c

/*
 * Copyright (c) 1983, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char sccsid[] = "@(#)getcom.c	8.1 (Berkeley) 5/31/93";
#endif /* not lint */

#include <stdio.h>
#include <ctype.h>

char *
getcom(buf, size, prompt, error)
	char *buf;
	int size;
	char *prompt, *error;
{
	for (;;) {
		fputs(prompt, stdout); 
		if (fgets(buf, size, stdin) == 0) {
			clearerr(stdin);
			continue;
		}
		while (isspace(*buf))
			buf++;
		if (*buf)
			break;
		if (error)
			puts(error);
	}
	return (buf);
}


/*
 * shifts to UPPERCASE if flag > 0, lowercase if flag < 0,
 * and leaves it unchanged if flag = 0
 */
char *
getword(buf1, buf2, flag)
	register char *buf1, *buf2;
	register flag;
{
	while (isspace(*buf1))
		buf1++;
	if (*buf1 != ',') {
		if (!*buf1) {
			*buf2 = 0;
			return (0);
		}
		while (*buf1 && !isspace(*buf1) && *buf1 != ',')
			if (flag < 0)
				if (isupper(*buf1))
					*buf2++ = tolower(*buf1++);
				else
					*buf2++ = *buf1++;
			else if (flag > 0)
				if (islower(*buf1))
					*buf2++ = toupper(*buf1++);
				else
					*buf2++ = *buf1++;
			else
				*buf2++ = *buf1++;
	} else
		*buf2++ = *buf1++;
	*buf2 = 0;
	while (isspace(*buf1))
		buf1++;
	return (*buf1 ? buf1 : 0);
}
Commit	Line	Data
fdc7d56f	1	/*
86164080 KB	2	* Copyright (c) 1983, 1993
86164080 KB	3	* The Regents of the University of California. All rights reserved.
e95fc82a	4	*
c0567266 KB	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
fdc7d56f EW	32	*/
fdc7d56f EW	33
124d2372	34	#ifndef lint
ad787160	35	static char sccsid[] = "@(#)getcom.c 8.1 (Berkeley) 5/31/93";
e95fc82a	36	#endif /* not lint */
124d2372 EW	37
	38	#include <stdio.h>
	39	#include <ctype.h>
	40
	41	char *
	42	getcom(buf, size, prompt, error)
	43	char *buf;
	44	int size;
	45	char prompt, error;
	46	{
	47	for (;;) {
	48	fputs(prompt, stdout);
d0adb698 EW	49	if (fgets(buf, size, stdin) == 0) {
	50	clearerr(stdin);
	51	continue;
	52	}
124d2372 EW	53	while (isspace(*buf))
	54	buf++;
	55	if (*buf)
	56	break;
	57	if (error)
	58	puts(error);
	59	}
	60	return (buf);
	61	}
	62
d0adb698 EW	63
	64	/*
	65	* shifts to UPPERCASE if flag > 0, lowercase if flag < 0,
	66	* and leaves it unchanged if flag = 0
	67	*/
124d2372 EW	68	char *
124d2372 EW	69	getword(buf1, buf2, flag)
d0adb698 EW	70	register char buf1, buf2;
d0adb698 EW	71	register flag;
124d2372	72	{
124d2372 EW	73	while (isspace(*buf1))
	74	buf1++;
	75	if (*buf1 != ',') {
	76	if (!*buf1) {
	77	*buf2 = 0;
	78	return (0);
	79	}
	80	while (buf1 && !isspace(buf1) && *buf1 != ',')
d0adb698 EW	81	if (flag < 0)
	82	if (isupper(*buf1))
	83	buf2++ = tolower(buf1++);
	84	else
	85	buf2++ = buf1++;
	86	else if (flag > 0)
	87	if (islower(*buf1))
	88	buf2++ = toupper(buf1++);
	89	else
	90	buf2++ = buf1++;
	91	else
	92	buf2++ = buf1++;
124d2372 EW	93	} else
	94	buf2++ = buf1++;
	95	*buf2 = 0;
	96	while (isspace(*buf1))
	97	buf1++;
	98	return (*buf1 ? buf1 : 0);
	99	}