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mkindex.c revision 1.2 
      1 /*	$NetBSD: mkindex.c,v 1.2 1995/03/21 12:14:52 cgd Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * Barry Brachman.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  */
     38 
     39 #ifndef lint
     40 static char copyright[] =
     41 "@(#) Copyright (c) 1993\n\
     42 	The Regents of the University of California.  All rights reserved.\n";
     43 #endif /* not lint */
     44 
     45 #ifndef lint
     46 #if 0
     47 static char sccsid[] = "@(#)mkindex.c	8.1 (Berkeley) 6/11/93";
     48 #else
     49 static char rcsid[] = "$NetBSD: mkindex.c,v 1.2 1995/03/21 12:14:52 cgd Exp $";
     50 #endif
     51 #endif /* not lint */
     52 
     53 #include <stdio.h>
     54 
     55 #include "bog.h"
     56 
     57 char *nextword __P((FILE *, char *, int *, int *));
     58 
     59 int
     60 main(argc, argv)
     61 	int argc;
     62 	char *argv[];
     63 {
     64 	int clen, rlen, prev;
     65 	long off, start;
     66 	char buf[MAXWORDLEN + 1];
     67 
     68 	prev = '\0';
     69 	off = start = 0L;
     70 	while (nextword(stdin, buf, &clen, &rlen) != NULL) {
     71 		if (*buf != prev) {
     72 			if (prev != '\0')
     73 				printf("%c %6ld %6ld\n", prev, start, off - 1);
     74 			prev = *buf;
     75 			start = off;
     76 		}
     77 		off += clen + 1;
     78 	}
     79 	printf("%c %6ld %6ld\n", prev, start, off - 1);
     80 	exit(0);
     81 }
     82 
     83 /*
     84  * Return the next word in the compressed dictionary in 'buffer' or
     85  * NULL on end-of-file
     86  * Also set clen to the length of the compressed word (for mkindex) and
     87  * rlen to the strlen() of the real word
     88  */
     89 char *
     90 nextword(fp, buffer, clen, rlen)
     91 	FILE *fp;
     92 	char *buffer;
     93 	int *clen, *rlen;
     94 {
     95 	register int ch, pcount;
     96 	register char *p, *q;
     97 	static char buf[MAXWORDLEN + 1];
     98 	static int first = 1;
     99 	static int lastch = 0;
    100 
    101    	if (first) {
    102 		if ((pcount = getc(fp)) == EOF)
    103 			return (NULL);
    104 		first = 0;
    105 	}
    106 	else if ((pcount = lastch) == EOF)
    107 		return (NULL);
    108 
    109 	p = buf + (*clen = pcount);
    110 
    111 	while ((ch = getc(fp)) != EOF && ch >= 'a')
    112 			*p++ = ch;
    113 		lastch = ch;
    114 	*p = '\0';
    115 
    116 	*rlen = (int) (p - buf);
    117 	*clen = *rlen - *clen;
    118 
    119 	p = buf;
    120 	q = buffer;
    121 	while ((*q++ = *p) != '\0') {
    122 		if (*p++ == 'q')
    123 			*q++ = 'u';
    124 	}
    125 	return (buffer);
    126 }
    127