59643a2120
current tab, however the code it replaced wanted to round to the next TAB. Consequently things like this: ( echo 1 ; echo 2 ) | column cause column to loop indefinitely. This patch is slightly different from the one Gary submitted, but is closer to the original code. Submitted by: Gary Cody <gary@lyranthe.org> MFC after: 1 week
339 lines
7.9 KiB
C
339 lines
7.9 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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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1989, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif
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#if 0
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#ifndef lint
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static char sccsid[] = "@(#)column.c 8.4 (Berkeley) 5/4/95";
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#endif
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/param.h>
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#include <err.h>
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#include <limits.h>
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <wchar.h>
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#include <wctype.h>
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#define TAB 8
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void c_columnate(void);
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void input(FILE *);
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void maketbl(void);
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void print(void);
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void r_columnate(void);
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void usage(void);
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int width(const wchar_t *);
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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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const wchar_t *separator = L"\t "; /* field separator for table option */
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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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const char *src;
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wchar_t *newsep;
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size_t seplen;
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setlocale(LC_ALL, "");
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if (ioctl(1, TIOCGWINSZ, &win) == -1 || !win.ws_col) {
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if ((p = getenv("COLUMNS")))
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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(argc, argv, "c:s:tx")) != -1)
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switch(ch) {
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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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src = optarg;
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seplen = mbsrtowcs(NULL, &src, 0, NULL);
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if (seplen == (size_t)-1)
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err(1, "bad separator");
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newsep = malloc((seplen + 1) * sizeof(wchar_t));
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if (newsep == NULL)
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err(1, NULL);
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mbsrtowcs(newsep, &src, seplen + 1, NULL);
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separator = newsep;
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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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case '?':
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default:
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usage();
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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 for (; *argv; ++argv)
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if ((fp = fopen(*argv, "r"))) {
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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 = 1;
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}
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if (!entries)
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exit(eval);
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maxlength = roundup(maxlength + TAB, TAB);
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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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exit(eval);
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}
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void
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c_columnate(void)
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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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numcols = termwidth / maxlength;
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endcol = maxlength;
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for (chcnt = col = 0, lp = list;; ++lp) {
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wprintf(L"%ls", *lp);
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chcnt += 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 = roundup(chcnt + TAB, TAB)) <= endcol) {
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(void)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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void
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r_columnate(void)
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{
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int base, chcnt, cnt, col, endcol, numcols, numrows, row;
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numcols = termwidth / maxlength;
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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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wprintf(L"%ls", list[base]);
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chcnt += width(list[base]);
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if ((base += numrows) >= entries)
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break;
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while ((cnt = roundup(chcnt + TAB, TAB)) <= endcol) {
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(void)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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void
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print(void)
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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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(void)wprintf(L"%ls\n", *lp);
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}
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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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#define DEFCOLS 25
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void
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maketbl(void)
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{
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TBL *t;
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int coloff, cnt;
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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 *last;
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if ((t = tbl = calloc(entries, sizeof(TBL))) == NULL)
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err(1, (char *)NULL);
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if ((cols = calloc((maxcols = DEFCOLS), sizeof(*cols))) == NULL)
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err(1, (char *)NULL);
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if ((lens = calloc(maxcols, sizeof(int))) == NULL)
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err(1, (char *)NULL);
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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, &last));
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p = NULL)
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if (++coloff == maxcols) {
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if (!(cols = realloc(cols, (u_int)maxcols +
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DEFCOLS * sizeof(char *))) ||
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!(lens = realloc(lens,
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(u_int)maxcols + DEFCOLS * sizeof(int))))
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err(1, NULL);
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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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if ((t->list = calloc(coloff, sizeof(*t->list))) == NULL)
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err(1, (char *)NULL);
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if ((t->len = calloc(coloff, sizeof(int))) == NULL)
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err(1, (char *)NULL);
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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] = 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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(void)wprintf(L"%ls%*ls", t->list[coloff],
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lens[coloff] - t->len[coloff] + 2, L" ");
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(void)wprintf(L"%ls\n", t->list[coloff]);
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}
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}
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#define DEFNUM 1000
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#define MAXLINELEN (LINE_MAX + 1)
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void
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input(FILE *fp)
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{
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static int maxentry;
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int len;
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wchar_t *p, buf[MAXLINELEN];
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if (!list)
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if ((list = calloc((maxentry = DEFNUM), sizeof(*list))) ==
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NULL)
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err(1, (char *)NULL);
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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, L'\n'))) {
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warnx("line too long");
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eval = 1;
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continue;
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}
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*p = L'\0';
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len = width(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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if (!(list = realloc(list,
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(u_int)maxentry * sizeof(*list))))
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err(1, NULL);
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}
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list[entries] = malloc((wcslen(buf) + 1) * sizeof(wchar_t));
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if (list[entries] == NULL)
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err(1, NULL);
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wcscpy(list[entries], buf);
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entries++;
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}
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}
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/* Like wcswidth(), but ignores non-printing characters. */
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int
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width(const wchar_t *wcs)
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{
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int w, cw;
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for (w = 0; *wcs != L'\0'; wcs++)
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if ((cw = wcwidth(*wcs)) > 0)
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w += cw;
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return (w);
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}
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void
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usage(void)
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{
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(void)fprintf(stderr,
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"usage: column [-tx] [-c columns] [-s sep] [file ...]\n");
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exit(1);
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}
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