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Don't comment warnings. Don't put #warnings about warnings. _FIX_ warnings.

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This fixes the warning, and makes the binary smaller out of sheer pique.
(Yes, since Manuel did this one it's nice tight code that took several
attempts to shrink, but I was ticked.)

Add the start of a test for uniq; this is about the first 1/3 of the
tests we need for full susv3 coverage of uniq.
This commit is contained in:
Rob Landley 2005-09-07 04:18:36 +00:00
parent 99f61719cb
commit 14efdc58ce
5 changed files with 74 additions and 71 deletions
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2
coreutils/libcoreutils/Makefile.in
View File

@ -23,7 +23,7 @@ LIBCOREUTILS_DIR:=$(top_builddir)/coreutils/libcoreutils/
endif
srcdir=$(top_srcdir)/coreutils/libcoreutils
LIBCOREUTILS_SRC:= cp_mv_stat.c getopt_mk_fifo_nod.c xgetoptfile_sort_uniq.c
LIBCOREUTILS_SRC:= cp_mv_stat.c getopt_mk_fifo_nod.c
LIBCOREUTILS_OBJS=$(patsubst %.c,$(LIBCOREUTILS_DIR)%.o, $(LIBCOREUTILS_SRC))

38
coreutils/libcoreutils/xgetoptfile_sort_uniq.c
View File

@ -1,38 +0,0 @@
/* vi: set sw=4 ts=4: */
/*
* coreutils utility routine
*
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <stdio.h>
#include <unistd.h>
#include "libbb.h"
#include "coreutils.h"
extern FILE *xgetoptfile_sort_uniq(char **argv, const char *mode)
{
const char *n;
if ((n = *argv) != NULL) {
if ((*n != '-') || n[1]) {
return bb_xfopen(n, mode);
}
}
return (*mode == 'r') ? stdin : stdout;
}

67
coreutils/uniq.c
View File

@ -4,19 +4,7 @@
*
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* Licensed under GPL v2, see file LICENSE in this tarball for details.
*
*/
@ -31,7 +19,21 @@
#include "busybox.h"
#include "libcoreutils/coreutils.h"
static const char uniq_opts[] = "f:s:cdu\0\7\3\5\1\2\4";
/* The extra data is flags to make -d and -u switch each other off */
static const char uniq_opts[] = "cudf:s:\0\7\3\5\1\2\4";
#define SHOW_COUNT 1
#define SHOW_UNIQUE 2
#define SHOW_DUPLICATE 4
static FILE *open_arg(char **argv, char *mode)
{
char *n=*argv;
return (n && *n != '-' && n[1]) ? bb_xfopen(n, mode) :
*mode=='r' ? stdin : stdout;
}
int uniq_main(int argc, char **argv)
{
@ -39,28 +41,37 @@ int uniq_main(int argc, char **argv)
unsigned long dups, skip_fields, skip_chars, i;
const char *oldline, *oldskipped, *line, *skipped, *input_filename;
int opt;
int uniq_flags = 6; /* -u */
int uniq_flags = SHOW_UNIQUE | SHOW_DUPLICATE;
skip_fields = skip_chars = 0;
while ((opt = getopt(argc, argv, uniq_opts)) > 0) {
if (opt == 'f') skip_fields = bb_xgetularg10(optarg);
else if (opt == 's') skip_chars = bb_xgetularg10(optarg);
/* This bit uses the extra data at the end of uniq_opts to make
* -d and -u switch each other off in a very small amount of space */
else if ((line = strchr(uniq_opts, opt)) != NULL) {
uniq_flags &= line[4];
uniq_flags |= line[7];
uniq_flags &= line[8];
uniq_flags |= line[11];
} else bb_show_usage();
}
input_filename = *(argv += optind);
in = xgetoptfile_sort_uniq(argv, "r");
in = open_arg(argv, "r");
if (*argv) ++argv;
out = xgetoptfile_sort_uniq(argv, "w");
out = open_arg(argv, "w");
if (*argv && argv[1]) bb_show_usage();
oldline = NULL;
line = skipped = NULL;
NOT_DUPLICATE:
oldline = line;
oldskipped = skipped;
dups = 0;
/* gnu uniq ignores newlines */
while ((line = bb_get_chomped_line_from_file(in)) != NULL) {
skipped = line;
@ -70,27 +81,21 @@ int uniq_main(int argc, char **argv)
}
for (i = skip_chars ; *skipped && i ; i--) ++skipped;
if (oldline) {
if (strcmp(oldskipped, skipped) == 0) {
if (!strcmp(oldskipped, skipped)) {
++dups; /* Note: Testing for overflow seems excessive. */
continue;
}
DO_LAST:
if ((dups && (uniq_flags & 2)) || (!dups && (uniq_flags & 4))) {
bb_fprintf(out, "\0%7d\t" + (uniq_flags & 1), dups + 1);
if (uniq_flags & (dups ? SHOW_DUPLICATE : SHOW_UNIQUE)) {
bb_fprintf(out, "\0%7d " + (uniq_flags & SHOW_COUNT), dups + 1);
bb_fprintf(out, "%s\n", oldline);
}
free((void *)oldline);
}
oldline = line;
oldskipped = skipped;
dups = 0;
goto NOT_DUPLICATE;
}
if (oldline) {
skipped = NULL;
goto DO_LAST;
}
if (oldline) goto DO_LAST;
bb_xferror(in, input_filename);

2
include/usage.h
View File

@ -3041,7 +3041,7 @@
"\t-f\tforce overwrite an existing file"
#define uniq_trivial_usage \
"[OPTION]... [INPUT [OUTPUT]]"
"[-fscdu]... [INPUT [OUTPUT]]"
#define uniq_full_usage \
"Discard all but one of successive identical lines from INPUT\n" \
"(or standard input), writing to OUTPUT (or standard output).\n\n" \

36
testsuite/uniq.tests Executable file
View File

@ -0,0 +1,36 @@
#!/bin/sh
# SUSv3 compliant uniq tests.
# Copyright 2005 by Rob Landley <rob@landley.net>
# Licensed under GPL v2, see file LICENSE for details.
# AUDIT: Not full coverage of the spec yet.
if [ ${#COMMAND} -eq 0 ]; then COMMAND=uniq; fi
. testing.sh
# The basic tests. These should work even with the small busybox.
#-f skip fields
#-s skip chars
#-c occurrences
#-d dups only
#-u
testing "uniq (default to stdin)" "" "one\ntwo\nthree\n" "" \
"one\ntwo\ntwo\nthree\nthree\nthree\n"
testing "uniq - (specify stdin)" "-" "one\ntwo\nthree\n" "" \
"one\ntwo\ntwo\nthree\nthree\nthree\n"
testing "uniq input (specify file)" "input" "one\ntwo\nthree\n" \
"one\ntwo\ntwo\nthree\nthree\nthree\n" ""
testing "uniq input outfile (two files)" "input actual > /dev/null" \
"one\ntwo\nthree\n" "one\ntwo\ntwo\nthree\nthree\nthree\n" ""
#testing "uniq - outfile" "- outfile" "one\ntwo\nthree\n" \
# "one\ntwo\ntwo\nthree\nthree\nthree\n" ""
testing "uniq -d" "-d" "two\nthree\n" "" \
"one\ntwo\ntwo\nthree\nthree\nthree\n"
testing "uniq -c" "-c" " 1 one\n 2 two\n 3 three\n" "" \
"one\ntwo\ntwo\nthree\nthree\nthree\n"
# testing "uniq -c -d"
# testing "uniq infile"
exit $FAILCOUNT