31fa41024e
is still one issue on FreeBSD/arm (signed vs unsigned char) which prevents actually bumping this to WARNS=6 - I'm still considering the correct solution to this issue. Tested by: make universe
113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
/*
|
|
* Copyright (c) 1995 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
|
|
* Copyright (c) 1989, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* James A. Woods.
|
|
*
|
|
* 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. 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
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#if 0
|
|
#ifndef lint
|
|
static char copyright[] =
|
|
"@(#) Copyright (c) 1989, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)locate.bigram.c 8.1 (Berkeley) 6/6/93";
|
|
#endif /* not lint */
|
|
#endif
|
|
|
|
/*
|
|
* bigram < sorted_file_names | sort -nr |
|
|
* awk 'NR <= 128 { printf $2 }' > bigrams
|
|
*
|
|
* List bigrams for 'updatedb' script.
|
|
* Use 'code' to encode a file using this output.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <sys/param.h> /* for MAXPATHLEN */
|
|
#include "locate.h"
|
|
|
|
u_char buf1[MAXPATHLEN] = " ";
|
|
u_char buf2[MAXPATHLEN];
|
|
u_int bigram[UCHAR_MAX + 1][UCHAR_MAX + 1];
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
u_char *cp;
|
|
u_char *oldpath = buf1, *path = buf2;
|
|
u_int i, j;
|
|
|
|
while (fgets(path, sizeof(buf2), stdin) != NULL) {
|
|
|
|
/*
|
|
* We don't need remove newline character '\n'.
|
|
* '\n' is less than ASCII_MIN and will be later
|
|
* ignored at output.
|
|
*/
|
|
|
|
|
|
/* skip longest common prefix */
|
|
for (cp = path; *cp == *oldpath; cp++, oldpath++)
|
|
if (*cp == '\0')
|
|
break;
|
|
|
|
while (*cp != '\0' && *(cp + 1) != '\0') {
|
|
bigram[(u_char)*cp][(u_char)*(cp + 1)]++;
|
|
cp += 2;
|
|
}
|
|
|
|
/* swap pointers */
|
|
if (path == buf1) {
|
|
path = buf2;
|
|
oldpath = buf1;
|
|
} else {
|
|
path = buf1;
|
|
oldpath = buf2;
|
|
}
|
|
}
|
|
|
|
/* output, boundary check */
|
|
for (i = ASCII_MIN; i <= ASCII_MAX; i++)
|
|
for (j = ASCII_MIN; j <= ASCII_MAX; j++)
|
|
if (bigram[i][j] != 0)
|
|
(void)printf("%4u %c%c\n", bigram[i][j], i, j);
|
|
|
|
exit(0);
|
|
}
|