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Lots of updates. Finished implementing BB_FEATURE_TRIVIAL_HELP

Browse Source 
which lets you compile out most of the "--help" output, saving
up to 17k.

Renamed mnc to nc.
 -Erik
This commit is contained in:
Erik Andersen
2000-05-12 19:41:47 +00:00
parent 3d427ac5ef
commit 7ab9c7ee52
136 changed files with 1743 additions and 454 deletions
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372
coreutils/cut.c Normal file
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@ -0,0 +1,372 @@
/* vi: set sw=4 ts=4: */
/*
* cut implementation for busybox
*
* Copyright (c) Michael J. Holme
*
* This version of cut is adapted from Minix cut and was modified
* by Erik Andersen <andersee@debian.org> to be used in busybox.
*
* 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
*
* Original copyright notice is retained at the end of this file.
*/
#include "internal.h"
#include <sys/types.h>
#include <ctype.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#define BB_DECLARE_EXTERN
#define bb_need_help
#include "messages.c"
#define MAX_FIELD 80 /* Pointers to the beginning of each field
* are stored in columns[], if a line holds
* more than MAX_FIELD columns the array
* boundary is exceed. But unlikely at 80 */
#define MAX_ARGS 32 /* Maximum number of fields following -f or
* -c switches */
int args[MAX_ARGS * 2];
int num_args;
/* Lots of new defines, should easen maintainance... */
#define DUMP_STDIN 0 /* define for mode: no options */
#define OPTIONF 1 /* define for mode: option -f */
#define OPTIONC 2 /* define for mode: option -c */
#define OPTIONB 3 /* define for mode: option -b */
#define NOTSET 0 /* option not selected */
#define SET 1 /* option selected */
/* Defines for the warnings */
#define DELIMITER_NOT_APPLICABLE 0
#define OVERRIDING_PREVIOUS_MODE 1
#define OPTION_NOT_APPLICABLE 2
#define UNKNOWN_OPTION 3
#define FILE_NOT_READABLE 4
/* Defines for the fatal errors */
#define SYNTAX_ERROR 101
#define POSITION_ERROR 102
#define LINE_TO_LONG_ERROR 103
#define RANGE_ERROR 104
#define MAX_FIELDS_EXEEDED_ERROR 105
#define MAX_ARGS_EXEEDED_ERROR 106
int mode; /* 0 = dump stdin to stdout, 1=-f, 2=-c */
char delim = '\t'; /* default delimiting character */
FILE *fd;
char *name;
char line[BUFSIZ];
int exit_status;
int cut_main(int argc, char **argv);
void warn(int warn_number, char *option);
void cuterror(int err);
void get_args(void);
void cut(void);
void warn(int warn_number, char *option)
{
static char *warn_msg[] = {
"%s: Option -d allowed only with -f\n",
"%s: -%s overrides earlier option\n",
"%s: -%s not allowed in current mode\n",
"%s: Cannot open %s\n"
};
fprintf(stderr, warn_msg[warn_number], name, option);
exit_status = warn_number + 1;
}
void cuterror(int err)
{
static char *err_mes[] = {
"%s: syntax error\n",
"%s: position must be >0\n",
"%s: line longer than BUFSIZ\n",
"%s: range must not decrease from left to right\n",
"%s: MAX_FIELD exceeded\n",
"%s: MAX_ARGS exceeded\n"
};
fprintf(stderr, err_mes[err - 101], name);
exit(err);
}
void get_args()
{
int i = 0;
int arg_ptr = 0;
int flag;
num_args = 0;
do {
if (num_args == MAX_ARGS)
cuterror(MAX_ARGS_EXEEDED_ERROR);
if (!isdigit(line[i]) && line[i] != '-')
cuterror(SYNTAX_ERROR);
args[arg_ptr] = 1;
args[arg_ptr + 1] = BUFSIZ;
flag = 1;
while (line[i] != ',' && line[i] != 0) {
if (isdigit(line[i])) {
args[arg_ptr] = 0;
while (isdigit(line[i]))
args[arg_ptr] = 10 * args[arg_ptr] + line[i++] - '0';
if (!args[arg_ptr])
cuterror(POSITION_ERROR);
arg_ptr++;
}
if (line[i] == '-') {
arg_ptr |= 1;
i++;
flag = 0;
}
}
if (flag && arg_ptr & 1)
args[arg_ptr] = args[arg_ptr - 1];
if (args[num_args * 2] > args[num_args * 2 + 1])
cuterror(RANGE_ERROR);
num_args++;
arg_ptr = num_args * 2;
}
while (line[i++]);
}
void cut()
{
int i, j, length, maxcol=0;
char *columns[MAX_FIELD];
while (fgets(line, BUFSIZ, fd)) {
length = strlen(line) - 1;
*(line + length) = 0;
switch (mode) {
case DUMP_STDIN:
printf("%s", line);
break;
case OPTIONF:
columns[maxcol++] = line;
for (i = 0; i < length; i++) {
if (*(line + i) == delim) {
*(line + i) = 0;
if (maxcol == MAX_FIELD)
cuterror(MAX_FIELDS_EXEEDED_ERROR);
columns[maxcol] = line + i + 1;
maxcol++;
}
}
if (maxcol != 1) {
for (i = 0; i < num_args; i++) {
for (j = args[i * 2]; j <= args[i * 2 + 1]; j++)
if (j <= maxcol) {
printf("%s", columns[j - 1]);
if (i != num_args - 1 || j != args[i * 2 + 1])
putchar(delim);
}
}
}
break;
case OPTIONC:
for (i = 0; i < num_args; i++) {
for (j = args[i * 2];
j <= (args[i * 2 + 1] >
length ? length : args[i * 2 + 1]); j++)
putchar(*(line + j - 1));
}
}
if (maxcol != 1)
putchar('\n');
}
}
int cut_main(int argc, char **argv)
{
int i = 1;
int numberFilenames = 0;
name = argv[0];
if (argc == 1 || strcmp(argv[1], dash_dash_help)==0)
usage( "cut [OPTION]... [FILE]...\n"
#ifndef BB_FEATURE_TRIVIAL_HELP
"\nPrints selected fields from each input FILE to standard output.\n\n"
"Options:\n"
"\t-b LIST\tOutput only bytes from LIST\n"
"\t-c LIST\tOutput only characters from LIST\n"
"\t-d DELIM\tUse DELIM instead of tab as the field delimiter\n"
"\t-f N\tPrint only these fields\n"
"\t-n\tIgnored\n"
#endif
);
while (i < argc) {
if (argv[i][0] == '-') {
switch (argv[i++][1]) {
case 'd':
if (mode == OPTIONC || mode == OPTIONB)
warn(DELIMITER_NOT_APPLICABLE, "d");
delim = argv[i++][0];
break;
case 'f':
sprintf(line, "%s", argv[i++]);
if (mode == OPTIONC || mode == OPTIONB)
warn(OVERRIDING_PREVIOUS_MODE, "f");
mode = OPTIONF;
break;
case 'b':
sprintf(line, "%s", argv[i++]);
if (mode == OPTIONF || mode == OPTIONC)
warn(OVERRIDING_PREVIOUS_MODE, "b");
mode = OPTIONB;
break;
case 'c':
sprintf(line, "%s", argv[i++]);
if (mode == OPTIONF || mode == OPTIONB)
warn(OVERRIDING_PREVIOUS_MODE, "c");
mode = OPTIONC;
break;
case '\0': /* - means: read from stdin */
numberFilenames++;
break;
case 'n': /* needed for Posix, but no effect here */
if (mode != OPTIONB)
warn(OPTION_NOT_APPLICABLE, "n");
break;
default:
warn(UNKNOWN_OPTION, &(argv[i - 1][1]));
}
} else {
i++;
numberFilenames++;
}
}
/* Here follow the checks, if the selected options are reasonable. */
if (mode == OPTIONB) /* since in Minix char := byte */
mode = OPTIONC;
get_args();
if (numberFilenames != 0) {
i = 1;
while (i < argc) {
if (argv[i][0] == '-') {
switch (argv[i][1]) {
case 'f':
case 'c':
case 'b':
case 'd':
i += 2;
break;
case 'n':
case 'i':
case 's':
i++;
break;
case '\0':
fd = stdin;
i++;
cut();
break;
default:
i++;
}
} else {
if ((fd = fopen(argv[i++], "r")) == NULL) {
warn(FILE_NOT_READABLE, argv[i - 1]);
} else {
cut();
fclose(fd);
}
}
}
} else {
fd = stdin;
cut();
}
exit(exit_status);
}
/* cut - extract columns from a file or stdin. Author: Michael J. Holme
*
* Copyright 1989, Michael John Holme, All rights reserved.
* This code may be freely distributed, provided that this notice
* remains intact.
*
* V1.1: 6th September 1989
*
* Bugs, criticisms, etc,
* c/o Mark Powell
* JANET sq79@uk.ac.liv
* ARPA sq79%liv.ac.uk@nsfnet-relay.ac.uk
* UUCP ...!mcvax!ukc!liv.ac.uk!sq79
*-------------------------------------------------------------------------
* Changed for POSIX1003.2/Draft10 conformance
* Thomas Brupbacher (tobr@mw.lpc.ethz.ch), September 1990.
* Changes:
* - separation of error messages ( stderr) and output (stdout).
* - support for -b and -n (no effect, -b acts as -c)
* - support for -s
*-------------------------------------------------------------------------
*/
/*
* Copyright (c) 1987,1997, Prentice Hall
* All rights reserved.
*
* Redistribution and use of the MINIX operating system in source and
* binary forms, with or without modification, are permitted provided
* that the following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 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.
*
* Neither the name of Prentice Hall nor the names of the software
* authors or contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS, AUTHORS, 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 PRENTICE HALL OR ANY AUTHORS 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.
*
*/