1fc5d09e80
Define a constant WORDLEN. Always use this constant and NWORD where appropriate. Use NWORD - 1 in battlestar.c to avoid off-by-one error. Increment wordnumber after the INVEN verb to allow it to be followed by a comma and other actions. Avoid overflowing elements of the words array if input words are too long. Parse "," as AND except when followed by a verb, to allow such constructions as "take foo, bar, and baz". Trim AND AND which may occur from the ", and" in such a list. Avoid crashes from EVERYTHING in the wrong place by moving it to the start of OBJECT AND EVERYTHING and NOUNS AND EVERYTHING sequences, and trimming EVERYTHING AND EVERYTHING.
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/* $NetBSD: getcom.c,v 1.9 2000/09/21 17:44:34 jsm Exp $ */
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/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)getcom.c 8.1 (Berkeley) 5/31/93";
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#else
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__RCSID("$NetBSD: getcom.c,v 1.9 2000/09/21 17:44:34 jsm Exp $");
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#endif
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#endif /* not lint */
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#include "extern.h"
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char *
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getcom(buf, size, prompt, error)
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char *buf;
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int size;
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const char *prompt, *error;
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{
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for (;;) {
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fputs(prompt, stdout);
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if (fgets(buf, size, stdin) == 0) {
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if (feof(stdin))
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die();
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clearerr(stdin);
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continue;
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}
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while (isspace(*buf))
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buf++;
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if (*buf)
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break;
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if (error)
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puts(error);
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}
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return (buf);
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}
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/*
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* shifts to UPPERCASE if flag > 0, lowercase if flag < 0,
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* and leaves it unchanged if flag = 0
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*/
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char *
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getword(buf1, buf2, flag)
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char *buf1, *buf2;
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int flag;
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{
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int cnt;
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cnt = 1;
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while (isspace(*buf1))
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buf1++;
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if (*buf1 != ',') {
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if (!*buf1) {
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*buf2 = 0;
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return (0);
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}
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while (cnt < WORDLEN && *buf1 && !isspace(*buf1) && *buf1 != ',')
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if (flag < 0) {
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if (isupper(*buf1)) {
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*buf2++ = tolower(*buf1++);
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cnt++;
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} else {
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*buf2++ = *buf1++;
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cnt++;
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}
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} else if (flag > 0) {
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if (islower(*buf1)) {
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*buf2++ = toupper(*buf1++);
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cnt++;
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} else {
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*buf2++ = *buf1++;
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cnt++;
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}
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} else {
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*buf2++ = *buf1++;
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cnt++;
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}
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if (cnt == WORDLEN)
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while (*buf1 && !isspace(*buf1))
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buf1++;
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} else
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*buf2++ = *buf1++;
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*buf2 = '\0';
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while (isspace(*buf1))
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buf1++;
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return (*buf1 ? buf1 : NULL);
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}
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