NetBSD/games/boggle/mkindex/mkindex.c

132 lines
3.7 KiB
C

/* $NetBSD: mkindex.c,v 1.10 2005/07/01 16:38:24 jmc Exp $ */
/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Barry Brachman.
*
* 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.
*/
#ifndef lint
static char copyright[] = "@(#) Copyright (c) 1993\n\
The Regents of the University of California. All rights reserved.\n";
#if 0
static char sccsid[] = "@(#)mkindex.c 8.1 (Berkeley) 6/11/93";
#else
static char rcsid[] =
"$NetBSD: mkindex.c,v 1.10 2005/07/01 16:38:24 jmc Exp $";
#endif
#endif /* not lint */
#include <stdio.h>
#include <stdlib.h>
#include "bog.h"
char *nextword(FILE *, char *, int *, int *);
int
main(void)
{
int clen, rlen, prev, i;
long off, start;
char buf[MAXWORDLEN + 1];
prev = '\0';
off = start = 0L;
while (nextword(stdin, buf, &clen, &rlen) != NULL) {
if (*buf != prev) {
/*
* Boggle expects a full index even if the dictionary
* had no words beginning with some letters.
* So we write out entries for every letter from prev
* to *buf.
*/
if (prev != '\0')
printf("%c %6ld %6ld\n", prev, start, off - 1);
for (i = (prev ? prev + 1 : 'a'); i < *buf; i++)
printf("%c %6ld %6ld\n", i, off, off - 1);
prev = *buf;
start = off;
}
off += clen + 1;
}
printf("%c %6ld %6ld\n", prev, start, off - 1);
for (i = prev + 1; i <= 'z'; i++)
printf("%c %6ld %6ld\n", i, off, off - 1);
fflush(stdout);
if (ferror(stdout)) {
perror("error writing standard output");
exit(1);
}
exit(0);
}
/*
* Return the next word in the compressed dictionary in 'buffer' or
* NULL on end-of-file
* Also set clen to the length of the compressed word (for mkindex) and
* rlen to the strlen() of the real word
*/
char *
nextword(FILE *fp, char *buffer, int *clen, int *rlen)
{
int ch, pcount;
char *p, *q;
static char buf[MAXWORDLEN + 1];
static int first = 1;
static int lastch = 0;
if (first) {
if ((pcount = getc(fp)) == EOF)
return (NULL);
first = 0;
}
else if ((pcount = lastch) == EOF)
return (NULL);
p = buf + (*clen = pcount);
while ((ch = getc(fp)) != EOF && ch >= 'a')
*p++ = ch;
lastch = ch;
*p = '\0';
*rlen = (int) (p - buf);
*clen = *rlen - *clen;
p = buf;
q = buffer;
while ((*q++ = *p) != '\0') {
if (*p++ == 'q')
*q++ = 'u';
}
return (buffer);
}