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-rw-r--r--examples/loadables/cut.c379
1 files changed, 0 insertions, 379 deletions
diff --git a/examples/loadables/cut.c b/examples/loadables/cut.c
deleted file mode 100644
index 47d7d3e..0000000
--- a/examples/loadables/cut.c
+++ /dev/null
@@ -1,379 +0,0 @@
-/*
- * Copyright (c) 1989, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Adam S. Moskowitz of Menlo Consulting and Marciano Pitargue.
- *
- * 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.
- */
-
-#ifndef lint
-static const char copyright[] =
-"@(#) Copyright (c) 1989, 1993\n\
- The Regents of the University of California. All rights reserved.\n";
-#endif /* not lint */
-
-#ifndef lint
-static const char sccsid[] = "@(#)cut.c 8.3 (Berkeley) 5/4/95";
-#endif /* not lint */
-
-#include <config.h>
-
-#include <ctype.h>
-#include <stdio.h>
-#include <errno.h>
-
-#include "bashansi.h"
-
-#ifdef HAVE_LIMITS_H
-# include <limits.h>
-#endif
-
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-
-#include "builtins.h"
-#include "shell.h"
-#include "bashgetopt.h"
-#include "common.h"
-
-#if !defined (errno)
-extern int errno;
-#endif
-
-#if !defined (_POSIX2_LINE_MAX)
-# define _POSIX2_LINE_MAX 2048
-#endif
-
-static int cflag;
-static char dchar;
-static int dflag;
-static int fflag;
-static int sflag;
-
-static int autostart, autostop, maxval;
-static char positions[_POSIX2_LINE_MAX + 1];
-
-static int c_cut __P((FILE *, char *));
-static int f_cut __P((FILE *, char *));
-static int get_list __P((char *));
-static char *_cut_strsep __P((char **, const char *));
-
-int
-cut_builtin(list)
- WORD_LIST *list;
-{
- FILE *fp;
- int (*fcn) __P((FILE *, char *)) = NULL;
- int ch;
-
- fcn = NULL;
- dchar = '\t'; /* default delimiter is \t */
-
- /* Since we don't support multi-byte characters, the -c and -b
- options are equivalent, and the -n option is meaningless. */
- reset_internal_getopt ();
- while ((ch = internal_getopt (list, "b:c:d:f:sn")) != -1)
- switch(ch) {
- case 'b':
- case 'c':
- fcn = c_cut;
- if (get_list(list_optarg) < 0)
- return (EXECUTION_FAILURE);
- cflag = 1;
- break;
- case 'd':
- dchar = *list_optarg;
- dflag = 1;
- break;
- case 'f':
- fcn = f_cut;
- if (get_list(list_optarg) < 0)
- return (EXECUTION_FAILURE);
- fflag = 1;
- break;
- case 's':
- sflag = 1;
- break;
- case 'n':
- break;
- case '?':
- default:
- builtin_usage();
- return (EX_USAGE);
- }
-
- list = loptend;
-
- if (fflag) {
- if (cflag) {
- builtin_usage();
- return (EX_USAGE);
- }
- } else if (!cflag || dflag || sflag) {
- builtin_usage();
- return (EX_USAGE);
- }
-
- if (list) {
- while (list) {
- fp = fopen(list->word->word, "r");
- if (fp == 0) {
- builtin_error("%s", list->word->word);
- return (EXECUTION_FAILURE);
- }
- ch = (*fcn)(fp, list->word->word);
- (void)fclose(fp);
- if (ch < 0)
- return (EXECUTION_FAILURE);
- list = list->next;
- }
- } else {
- ch = (*fcn)(stdin, "stdin");
- if (ch < 0)
- return (EXECUTION_FAILURE);
- }
-
- return (EXECUTION_SUCCESS);
-}
-
-static int
-get_list(list)
- char *list;
-{
- int setautostart, start, stop;
- char *pos;
- char *p;
-
- /*
- * set a byte in the positions array to indicate if a field or
- * column is to be selected; use +1, it's 1-based, not 0-based.
- * This parser is less restrictive than the Draft 9 POSIX spec.
- * POSIX doesn't allow lists that aren't in increasing order or
- * overlapping lists. We also handle "-3-5" although there's no
- * real reason too.
- */
- for (; (p = _cut_strsep(&list, ", \t")) != NULL;) {
- setautostart = start = stop = 0;
- if (*p == '-') {
- ++p;
- setautostart = 1;
- }
- if (isdigit((unsigned char)*p)) {
- start = stop = strtol(p, &p, 10);
- if (setautostart && start > autostart)
- autostart = start;
- }
- if (*p == '-') {
- if (isdigit((unsigned char)p[1]))
- stop = strtol(p + 1, &p, 10);
- if (*p == '-') {
- ++p;
- if (!autostop || autostop > stop)
- autostop = stop;
- }
- }
- if (*p) {
- builtin_error("[-cf] list: illegal list value");
- return -1;
- }
- if (!stop || !start) {
- builtin_error("[-cf] list: values may not include zero");
- return -1;
- }
- if (stop > _POSIX2_LINE_MAX) {
- builtin_error("[-cf] list: %d too large (max %d)",
- stop, _POSIX2_LINE_MAX);
- return -1;
- }
- if (maxval < stop)
- maxval = stop;
- for (pos = positions + start; start++ <= stop; *pos++ = 1);
- }
-
- /* overlapping ranges */
- if (autostop && maxval > autostop)
- maxval = autostop;
-
- /* set autostart */
- if (autostart)
- memset(positions + 1, '1', autostart);
-
- return 0;
-}
-
-/* ARGSUSED */
-static int
-c_cut(fp, fname)
- FILE *fp;
- char *fname;
-{
- int ch, col;
- char *pos;
-
- ch = 0;
- for (;;) {
- pos = positions + 1;
- for (col = maxval; col; --col) {
- if ((ch = getc(fp)) == EOF)
- return;
- if (ch == '\n')
- break;
- if (*pos++)
- (void)putchar(ch);
- }
- if (ch != '\n') {
- if (autostop)
- while ((ch = getc(fp)) != EOF && ch != '\n')
- (void)putchar(ch);
- else
- while ((ch = getc(fp)) != EOF && ch != '\n');
- }
- (void)putchar('\n');
- }
- return (0);
-}
-
-static int
-f_cut(fp, fname)
- FILE *fp;
- char *fname;
-{
- int ch, field, isdelim;
- char *pos, *p, sep;
- int output;
- char lbuf[_POSIX2_LINE_MAX + 1];
-
- for (sep = dchar; fgets(lbuf, sizeof(lbuf), fp);) {
- output = 0;
- for (isdelim = 0, p = lbuf;; ++p) {
- if (!(ch = *p)) {
- builtin_error("%s: line too long.", fname);
- return -1;
- }
- /* this should work if newline is delimiter */
- if (ch == sep)
- isdelim = 1;
- if (ch == '\n') {
- if (!isdelim && !sflag)
- (void)printf("%s", lbuf);
- break;
- }
- }
- if (!isdelim)
- continue;
-
- pos = positions + 1;
- for (field = maxval, p = lbuf; field; --field, ++pos) {
- if (*pos) {
- if (output++)
- (void)putchar(sep);
- while ((ch = *p++) != '\n' && ch != sep)
- (void)putchar(ch);
- } else {
- while ((ch = *p++) != '\n' && ch != sep)
- continue;
- }
- if (ch == '\n')
- break;
- }
- if (ch != '\n') {
- if (autostop) {
- if (output)
- (void)putchar(sep);
- for (; (ch = *p) != '\n'; ++p)
- (void)putchar(ch);
- } else
- for (; (ch = *p) != '\n'; ++p);
- }
- (void)putchar('\n');
- }
- return (0);
-}
-
-/*
- * Get next token from string *stringp, where tokens are possibly-empty
- * strings separated by characters from delim.
- *
- * Writes NULs into the string at *stringp to end tokens.
- * delim need not remain constant from call to call.
- * On return, *stringp points past the last NUL written (if there might
- * be further tokens), or is NULL (if there are definitely no more tokens).
- *
- * If *stringp is NULL, strsep returns NULL.
- */
-static char *
-_cut_strsep(stringp, delim)
- register char **stringp;
- register const char *delim;
-{
- register char *s;
- register const char *spanp;
- register int c, sc;
- char *tok;
-
- if ((s = *stringp) == NULL)
- return (NULL);
- for (tok = s;;) {
- c = *s++;
- spanp = delim;
- do {
- if ((sc = *spanp++) == c) {
- if (c == 0)
- s = NULL;
- else
- s[-1] = 0;
- *stringp = s;
- return (tok);
- }
- } while (sc != 0);
- }
- /* NOTREACHED */
-}
-
-static char *cut_doc[] = {
- "Select portions of lines.",
- "",
- "Select portions of each line (as specified by LIST) from each FILE",
- "(by default, the standard input), and write them to the standard output.",
- "Items specified by LIST are either column positions or fields delimited",
- "by a special character. Column numbering starts at 1.",
- (char *)0
-};
-
-struct builtin cut_struct = {
- "cut",
- cut_builtin,
- BUILTIN_ENABLED,
- cut_doc,
- "cut -b list [-n] [file ...] OR cut -c list [file ...] OR cut -f list [-s] [-d delim] [file ...]",
- 0
-};
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