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File: [cvs.NetBSD.org] / src / games / battlestar / parse.c (download)

Revision 1.15, Fri Jul 1 06:04:54 2005 UTC (15 years, 2 months ago) by jmc
Branch: MAIN
CVS Tags: yamt-pf42-baseX, yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pf42-base, yamt-pf42, yamt-pagecache-tag8, yamt-pagecache-base9, yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, yamt-pagecache, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, tls-maxphys-base, tls-maxphys, tls-earlyentropy-base, tls-earlyentropy, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, phil-wifi-base, phil-wifi-20191119, phil-wifi-20190609, pgoyette-localcount-base, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-localcount-20161104, pgoyette-localcount-20160806, pgoyette-localcount-20160726, pgoyette-localcount, pgoyette-compat-merge-20190127, pgoyette-compat-base, pgoyette-compat-20190127, pgoyette-compat-20190118, pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, pgoyette-compat, perseant-stdc-iso10646-base, perseant-stdc-iso10646, netbsd-9-base, netbsd-9-0-RELEASE, netbsd-9-0-RC2, netbsd-9-0-RC1, netbsd-9, netbsd-8-base, netbsd-8-2-RELEASE, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, netbsd-7-nhusb-base-20170116, netbsd-7-nhusb-base, netbsd-7-nhusb, netbsd-7-base, netbsd-7-2-RELEASE, netbsd-7-1-RELEASE, netbsd-7-1-RC2, netbsd-7-1-RC1, netbsd-7-1-2-RELEASE, netbsd-7-1-1-RELEASE, netbsd-7-1, netbsd-7-0-RELEASE, netbsd-7-0-RC3, netbsd-7-0-RC2, netbsd-7-0-RC1, netbsd-7-0-2-RELEASE, netbsd-7-0-1-RELEASE, netbsd-7-0, netbsd-7, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, netbsd-5-base, netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-RC3, netbsd-5-0-RC2, netbsd-5-0-RC1, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, netbsd-5, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4, mjf-devfs2-base, mjf-devfs2, matt-premerge-20091211, matt-nb8-mediatek-base, matt-nb8-mediatek, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b, matt-mips64-premerge-20101231, matt-mips64-base2, matt-mips64-base, matt-mips64, matt-armv6-prevmlocking, matt-armv6-nbase, matt-armv6-base, matt-armv6, localcount-20160914, keiichi-mipv6-base, keiichi-mipv6, jym-xensuspend-nbase, jym-xensuspend-base, jym-xensuspend, hpcarm-cleanup-nbase, hpcarm-cleanup-base, hpcarm-cleanup, cube-autoconf-base, cube-autoconf, cherry-xenmp-base, cherry-xenmp, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2, agc-symver-base, agc-symver, abandoned-netbsd-4-base, abandoned-netbsd-4
Branch point for: phil-wifi
Changes since 1.14: +13 -13 lines

KNF and WARNS=3

/*	$NetBSD: parse.c,v 1.15 2005/07/01 06:04:54 jmc Exp $	*/

/*
 * 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. 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.
 */

#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)parse.c	8.2 (Berkeley) 4/28/95";
#else
__RCSID("$NetBSD: parse.c,v 1.15 2005/07/01 06:04:54 jmc Exp $");
#endif
#endif				/* not lint */

#include "extern.h"

#define HASHSIZE	256
#define HASHMUL		81
#define HASHMASK	(HASHSIZE - 1)

static int hash(const char *);
static void install(struct wlist *);
static struct wlist *lookup(const char *);

static struct wlist *hashtab[HASHSIZE];

void
wordinit(void)
{
	struct wlist *w;

	for (w = wlist; w->string; w++)
		install(w);
}

static int
hash(const char *s)
{
	int     hashval = 0;

	while (*s) {
		hashval += *s++;
		hashval *= HASHMUL;
		hashval &= HASHMASK;
	}
	return hashval;
}

static struct wlist *
lookup(const char   *s)
{
	struct wlist *wp;

	for (wp = hashtab[hash(s)]; wp != NULL; wp = wp->next)
		if (*s == *wp->string && strcmp(s, wp->string) == 0)
			return wp;
	return NULL;
}

static void
install(struct wlist *wp)
{
	int     hashval;

	if (lookup(wp->string) == NULL) {
		hashval = hash(wp->string);
		wp->next = hashtab[hashval];
		hashtab[hashval] = wp;
	} else
		printf("Multiply defined %s.\n", wp->string);
}

void
parse(void)
{
	struct wlist *wp;
	int     n;
	int     flag;

	wordnumber = 0;		/* for cypher */
	for (n = 0; n <= wordcount; n++) {
		if ((wp = lookup(words[n])) == NULL) {
			wordvalue[n] = -1;
			wordtype[n] = -1;
		} else {
			wordvalue[n] = wp->value;
			wordtype[n] = wp->article;
		}
	}
	/* We never use adjectives for anything, so yank them all. */
	for (n = 1; n < wordcount; n++)
		if (wordtype[n] == ADJS) {
			int i;
			for (i = n + 1; i < wordcount; i++) {
				wordtype[i - 1] = wordtype[i];
				wordvalue[i - 1] = wordvalue[i];
				strcpy(words[i - 1], words[i]);
			}
			wordcount--;
		}
	/* Don't let a comma mean AND if followed by a verb. */
	for (n = 0; n < wordcount; n++)
		if (wordvalue[n] == AND && words[n][0] == ','
		    && wordtype[n + 1] == VERB) {
			wordvalue[n] = -1;
			wordtype[n] = -1;
		}
	/* Trim "AND AND" which can happen naturally at the end of a
	 * comma-delimited list.
	 */
	for (n = 1; n < wordcount; n++)
		if (wordvalue[n - 1] == AND && wordvalue[n] == AND) {
			int i;
			for (i = n + 1; i < wordcount; i++) {
				wordtype[i - 1] = wordtype[i];
				wordvalue[i - 1] = wordvalue[i];
				strcpy(words[i - 1], words[i]);
			}
			wordcount--;
		}

	/* If there is a sequence (NOUN | OBJECT) AND EVERYTHING
	 * then move all the EVERYTHINGs to the beginning, since that's where
	 * they're expected.  We can't get rid of the NOUNs and OBJECTs in
	 * case they aren't in EVERYTHING (i.e. not here or nonexistent).
	 */
	flag = 1;
	while (flag) {
		flag = 0;
		for (n = 1; n < wordcount; n++)
			if ((wordtype[n - 1] == NOUNS || 
			    wordtype[n - 1] == OBJECT) &&
			    wordvalue[n] == AND && 
			    wordvalue[n + 1] == EVERYTHING) {
				char tmpword[WORDLEN];
				wordvalue[n + 1] = wordvalue[n - 1];
				wordvalue[n - 1] = EVERYTHING;
				wordtype[n + 1] = wordtype[n - 1];
				wordtype[n - 1] = OBJECT;
				strcpy(tmpword, words[n - 1]);
				strcpy(words[n - 1], words[n + 1]);
				strcpy(words[n + 1], tmpword);
				flag = 1;
		}
		/* And trim EVERYTHING AND EVERYTHING. */
		for (n = 1; n < wordcount; n++)
			if (wordvalue[n - 1] == EVERYTHING &&
			    wordvalue[n] == AND && 
			    wordvalue[n + 1] == EVERYTHING) {
				int i;
				for (i = n + 1; i < wordcount; i++) {
					wordtype[i - 1] = wordtype[i + 1];
					wordvalue[i - 1] = wordvalue[i + 1];
					strcpy(words[i - 1], words[i + 1]);
				}
				wordcount--;
				wordcount--;
				flag = 1;
			}
	}
}