* Copyright (c) 1989 The Regents of the University of California.
* This code is derived from software contributed to Berkeley by
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 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
"@(#) Copyright (c) 1989 The Regents of the University of California.\n\
static char sccsid
[] = "@(#)locate.bigram.c 4.7 (Berkeley) 6/1/90";
* bigram < text > bigrams
* List bigrams for 'updatedb' script.
* Use 'code' to encode a file using this output.
#include <sys/param.h> /* for MAXPATHLEN */
char buf1
[MAXPATHLEN
] = " ";
register char *oldpath
= buf1
, *path
= buf2
;
while ( fgets ( path
, sizeof(buf2
), stdin
) != NULL
) {
/* skip longest common prefix */
for ( cp
= path
; *cp
== *oldpath
; cp
++, oldpath
++ )
* output post-residue bigrams only
while ( *cp
!= NULL
&& *(cp
+ 1) != NULL
) {
if ( path
== buf1
) /* swap pointers */
path
= buf2
, oldpath
= buf1
;
path
= buf1
, oldpath
= buf2
;