Lots of updates. Finished implementing BB_FEATURE_TRIVIAL_HELP
which lets you compile out most of the "--help" output, saving
up to 17k.
Renamed mnc to nc.
-Erik
diff --git a/cut.c b/cut.c
new file mode 100644
index 0000000..89a934e
--- /dev/null
+++ b/cut.c
@@ -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.
+ *
+ */
+
+