407 lines
9.5 KiB
C
407 lines
9.5 KiB
C
/*
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* Copyright (c) 1989, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
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* added Native Language Support
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* 1999-09-19 Bruno Haible <haible@clisp.cons.org>
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* modified to work correctly in multi-byte locales
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*/
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <ctype.h>
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#include <limits.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <getopt.h>
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#include "nls.h"
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#include "widechar.h"
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#include "c.h"
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#include "xalloc.h"
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#ifdef HAVE_WIDECHAR
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#define wcs_width(s) wcswidth(s,wcslen(s))
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static wchar_t *mbs_to_wcs(const char *);
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#else
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#define wcs_width(s) strlen(s)
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#define mbs_to_wcs(s) xstrdup(s)
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static char *mtsafe_strtok(char *, const char *, char **);
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#define wcstok mtsafe_strtok
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#endif
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#define DEFCOLS 25
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#define TAB 8
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#define DEFNUM 1000
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#define MAXLINELEN (LINE_MAX + 1)
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static void c_columnate __P((void));
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static void *emalloc __P((int));
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static void input __P((FILE *));
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static void maketbl __P((void));
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static void print __P((void));
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static void r_columnate __P((void));
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typedef struct _tbl {
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wchar_t **list;
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int cols, *len;
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} TBL;
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int termwidth = 80; /* default terminal width */
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int entries; /* number of records */
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int eval; /* exit value */
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int maxlength; /* longest record */
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wchar_t **list; /* array of pointers to records */
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wchar_t default_separator[] = { '\t', ' ', 0 };
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wchar_t *separator = default_separator; /* field separator for table option */
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static const struct option longopts[] =
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{
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{ "help", 0, 0, 'h' },
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{ "columns", 0, 0, 'c' },
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{ "table", 0, 0, 't' },
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{ "separator", 0, 0, 's' },
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{ "fillrows", 0, 0, 'x' },
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{ NULL, 0, 0, 0 },
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};
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static void __attribute__((__noreturn__)) usage(int rc)
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{
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FILE *out = rc == EXIT_FAILURE ? stderr : stdout;
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fprintf(out, _("\nUsage: %s [options] [file ...]\n"),
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program_invocation_short_name);
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fprintf(out, _("\nOptions:\n"));
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fprintf(out, _(
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" -h, --help displays this help text\n"
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" -c, --columns <width> width of output in number of characters\n"
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" -t, --table create a table\n"
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" -s, --separator <string> table delimeter\n"
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" -x, --fillrows fill rows before columns\n"));
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fprintf(out, _("\nFor more information see column(1).\n"));
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exit(rc);
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}
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int
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main(int argc, char **argv)
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{
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struct winsize win;
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FILE *fp;
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int ch, tflag, xflag;
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char *p;
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setlocale(LC_ALL, "");
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bindtextdomain(PACKAGE, LOCALEDIR);
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textdomain(PACKAGE);
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if (ioctl(1, TIOCGWINSZ, &win) == -1 || !win.ws_col) {
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if ((p = getenv("COLUMNS")) != NULL)
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termwidth = atoi(p);
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} else
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termwidth = win.ws_col;
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tflag = xflag = 0;
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while ((ch = getopt_long(argc, argv, "h?c:s:tx", longopts, NULL)) != -1)
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switch(ch) {
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case 'h':
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case '?':
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usage(EXIT_SUCCESS);
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break;
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case 'c':
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termwidth = atoi(optarg);
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break;
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case 's':
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separator = mbs_to_wcs(optarg);
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break;
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case 't':
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tflag = 1;
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break;
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case 'x':
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xflag = 1;
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break;
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default:
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usage(EXIT_FAILURE);
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}
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argc -= optind;
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argv += optind;
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if (!*argv)
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input(stdin);
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else {
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for (; *argv; ++argv) {
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if ((fp = fopen(*argv, "r")) != NULL) {
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input(fp);
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(void)fclose(fp);
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} else {
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warn("%s", *argv);
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eval = EXIT_FAILURE;
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}
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}
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}
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if (!entries)
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exit(eval);
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if (tflag)
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maketbl();
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else if (maxlength >= termwidth)
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print();
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else if (xflag)
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c_columnate();
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else
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r_columnate();
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if (ferror(stdout) || fclose(stdout))
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eval = EXIT_FAILURE;
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exit(eval);
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}
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static void
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c_columnate()
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{
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int chcnt, col, cnt, endcol, numcols;
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wchar_t **lp;
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maxlength = (maxlength + TAB) & ~(TAB - 1);
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numcols = termwidth / maxlength;
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endcol = maxlength;
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for (chcnt = col = 0, lp = list;; ++lp) {
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fputws(*lp, stdout);
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chcnt += wcs_width(*lp);
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if (!--entries)
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break;
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if (++col == numcols) {
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chcnt = col = 0;
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endcol = maxlength;
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putwchar('\n');
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} else {
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while ((cnt = ((chcnt + TAB) & ~(TAB - 1))) <= endcol) {
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putwchar('\t');
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chcnt = cnt;
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}
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endcol += maxlength;
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}
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}
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if (chcnt)
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putwchar('\n');
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}
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static void
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r_columnate()
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{
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int base, chcnt, cnt, col, endcol, numcols, numrows, row;
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maxlength = (maxlength + TAB) & ~(TAB - 1);
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numcols = termwidth / maxlength;
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if (!numcols)
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numcols = 1;
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numrows = entries / numcols;
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if (entries % numcols)
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++numrows;
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for (row = 0; row < numrows; ++row) {
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endcol = maxlength;
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for (base = row, chcnt = col = 0; col < numcols; ++col) {
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fputws(list[base], stdout);
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chcnt += wcs_width(list[base]);
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if ((base += numrows) >= entries)
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break;
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while ((cnt = ((chcnt + TAB) & ~(TAB - 1))) <= endcol) {
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putwchar('\t');
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chcnt = cnt;
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}
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endcol += maxlength;
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}
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putwchar('\n');
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}
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}
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static void
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print()
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{
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int cnt;
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wchar_t **lp;
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for (cnt = entries, lp = list; cnt--; ++lp) {
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fputws(*lp, stdout);
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putwchar('\n');
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}
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}
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static void
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maketbl()
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{
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TBL *t;
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int coloff, cnt, i;
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wchar_t *p, **lp;
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int *lens, maxcols;
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TBL *tbl;
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wchar_t **cols;
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wchar_t *wcstok_state;
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t = tbl = emalloc(entries * sizeof(TBL));
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cols = emalloc((maxcols = DEFCOLS) * sizeof(wchar_t *));
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lens = emalloc(maxcols * sizeof(int));
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for (cnt = 0, lp = list; cnt < entries; ++cnt, ++lp, ++t) {
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for (coloff = 0, p = *lp;
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(cols[coloff] = wcstok(p, separator, &wcstok_state)) != NULL;
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p = NULL) {
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if (++coloff == maxcols) {
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cols = xrealloc(cols, ((u_int)maxcols + DEFCOLS)
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* sizeof(wchar_t *));
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lens = xrealloc(lens, ((u_int)maxcols + DEFCOLS)
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* sizeof(int));
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memset((char *)lens + maxcols * sizeof(int),
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0, DEFCOLS * sizeof(int));
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maxcols += DEFCOLS;
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}
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}
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t->list = emalloc(coloff * sizeof(wchar_t *));
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t->len = emalloc(coloff * sizeof(int));
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for (t->cols = coloff; --coloff >= 0;) {
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t->list[coloff] = cols[coloff];
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t->len[coloff] = wcs_width(cols[coloff]);
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if (t->len[coloff] > lens[coloff])
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lens[coloff] = t->len[coloff];
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}
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}
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for (cnt = 0, t = tbl; cnt < entries; ++cnt, ++t) {
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for (coloff = 0; coloff < t->cols - 1; ++coloff) {
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fputws(t->list[coloff], stdout);
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for (i = lens[coloff] - t->len[coloff] + 2; i > 0; i--)
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putwchar(' ');
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}
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if (coloff < t->cols) {
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fputws(t->list[coloff], stdout);
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putwchar('\n');
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}
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}
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}
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static void
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input(fp)
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FILE *fp;
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{
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static int maxentry;
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int len, lineno = 1, reportedline = 0;
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wchar_t *p, buf[MAXLINELEN];
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if (!list)
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list = emalloc((maxentry = DEFNUM) * sizeof(wchar_t *));
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while (fgetws(buf, MAXLINELEN, fp)) {
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for (p = buf; *p && iswspace(*p); ++p);
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if (!*p)
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continue;
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if (!(p = wcschr(p, '\n')) && !feof(fp)) {
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if (reportedline < lineno) {
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warnx(_("line %d is too long, output will be truncated"),
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lineno);
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reportedline = lineno;
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}
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eval = EXIT_FAILURE;
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continue;
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}
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lineno++;
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if (!feof(fp))
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*p = '\0';
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len = wcs_width(buf); /* len = p - buf; */
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if (maxlength < len)
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maxlength = len;
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if (entries == maxentry) {
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maxentry += DEFNUM;
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list = xrealloc(list, (u_int)maxentry * sizeof(wchar_t *));
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}
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list[entries++] = wcsdup(buf);
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}
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}
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#ifdef HAVE_WIDECHAR
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static wchar_t *mbs_to_wcs(const char *s)
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{
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ssize_t n;
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wchar_t *wcs;
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n = mbstowcs((wchar_t *)0, s, 0);
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if (n < 0)
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return NULL;
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wcs = malloc((n + 1) * sizeof(wchar_t));
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if (!wcs)
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return NULL;
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n = mbstowcs(wcs, s, n + 1);
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if (n < 0)
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return NULL;
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return wcs;
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}
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#endif
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#ifndef HAVE_WIDECHAR
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static char *mtsafe_strtok(char *str, const char *delim, char **ptr)
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{
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if (str == NULL) {
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str = *ptr;
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if (str == NULL)
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return NULL;
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}
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str += strspn(str, delim);
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if (*str == '\0') {
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*ptr = NULL;
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return NULL;
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} else {
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char *token_end = strpbrk(str, delim);
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if (token_end) {
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*token_end = '\0';
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*ptr = token_end + 1;
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} else
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*ptr = NULL;
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return str;
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}
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}
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#endif
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static void *
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emalloc(size)
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int size;
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{
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char *p;
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p = xmalloc(size);
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memset(p, 0, size);
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return (p);
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}
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