--- /dev/null
+.\" $NetBSD: column.1,v 1.9 2009/03/09 19:24:32 joerg Exp $
+.\"
+.\" Copyright (c) 1989, 1990, 1993
+.\" The Regents of the University of California. All rights reserved.
+.\"
+.\" 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. 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.
+.\"
+.\" @(#)column.1 8.1 (Berkeley) 6/6/93
+.\"
+.Dd March 9, 2008
+.Dt COLUMN 1
+.Os
+.Sh NAME
+.Nm column
+.Nd columnate lists
+.Sh SYNOPSIS
+.Nm
+.Op Fl tx
+.Op Fl c Ar columns
+.Op Fl s Ar sep
+.Op Ar
+.Sh DESCRIPTION
+The
+.Nm
+utility formats its input into multiple columns.
+Rows are filled before columns.
+Input is taken from
+.Ar file
+operands, or, by default, from the standard input.
+Empty lines are ignored.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl c
+Output is formatted for a display
+.Ar columns
+wide.
+.It Fl s
+Specify a set of characters to be used to delimit columns for the
+.Fl t
+option.
+.It Fl t
+Determine the number of columns the input contains and create a table.
+Columns are delimited with whitespace, by default, or with the characters
+supplied using the
+.Fl s
+option.
+Useful for pretty-printing displays.
+.It Fl x
+Fill columns before filling rows.
+.El
+.Pp
+.Nm
+exits 0 on success, \*[Gt]0 if an error occurred.
+.Sh ENVIRONMENT
+.Bl -tag -width COLUMNS
+.It Ev COLUMNS
+The environment variable
+.Ev COLUMNS
+is used to determine the size of
+the screen if no other information is available.
+.El
+.Sh EXAMPLES
+.Dl (echo \&"PERM LINKS OWNER GROUP SIZE MONTH DAY HH:MM/YEAR NAME\&"\&;\ \&\e
+.Dl ls -l \&| sed 1d) \&| column -t
+.Sh SEE ALSO
+.Xr colrm 1 ,
+.Xr ls 1 ,
+.Xr paste 1 ,
+.Xr sort 1
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 4.3 Reno .
--- /dev/null
+/* $NetBSD: column.c,v 1.21 2008/07/21 14:19:21 lukem Exp $ */
+
+/*
+ * Copyright (c) 1989, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * 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. 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.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1989, 1993, 1994\
+ The Regents of the University of California. All rights reserved.");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)column.c 8.4 (Berkeley) 5/4/95";
+#endif
+__RCSID("$NetBSD: column.c,v 1.21 2008/07/21 14:19:21 lukem Exp $");
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <termios.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <util.h>
+
+#define TAB 8
+#define TABROUND(l) (((l) + TAB) & ~(TAB - 1))
+
+static void c_columnate(void);
+static void input(FILE *);
+static void maketbl(void);
+static void print(void);
+static void r_columnate(void);
+static void usage(void) __dead;
+
+static int termwidth = 80; /* default terminal width */
+
+static int entries; /* number of records */
+static int eval; /* exit value */
+static int maxlength; /* longest record */
+static char **list; /* array of pointers to records */
+static const char *separator = "\t "; /* field separator for table option */
+
+int
+main(int argc, char **argv)
+{
+ struct winsize win;
+ FILE *fp;
+ int ch, tflag, xflag;
+ const char *p;
+
+ setprogname(*argv);
+
+ if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) == -1 || !win.ws_col) {
+ if ((p = getenv("COLUMNS")) != NULL)
+ termwidth = atoi(p);
+ } else
+ termwidth = win.ws_col;
+
+ tflag = xflag = 0;
+ while ((ch = getopt(argc, argv, "c:s:tx")) != -1)
+ switch(ch) {
+ case 'c':
+ termwidth = atoi(optarg);
+ break;
+ case 's':
+ separator = optarg;
+ break;
+ case 't':
+ tflag = 1;
+ break;
+ case 'x':
+ xflag = 1;
+ break;
+ case '?':
+ default:
+ usage();
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (!*argv)
+ input(stdin);
+ else for (; *argv; ++argv)
+ if ((fp = fopen(*argv, "r")) != NULL) {
+ input(fp);
+ (void)fclose(fp);
+ } else {
+ warn("Cannot open `%s'", *argv);
+ eval = 1;
+ }
+
+ if (!entries)
+ return eval;
+
+ maxlength = TABROUND(maxlength);
+ if (tflag)
+ maketbl();
+ else if (maxlength >= termwidth)
+ print();
+ else if (xflag)
+ c_columnate();
+ else
+ r_columnate();
+ return eval;
+}
+
+static void
+c_columnate(void)
+{
+ int chcnt, col, cnt, endcol, numcols;
+ char **lp;
+
+ numcols = termwidth / maxlength;
+ endcol = maxlength;
+ for (chcnt = col = 0, lp = list;; ++lp) {
+ chcnt += printf("%s", *lp);
+ if (!--entries)
+ break;
+ if (++col == numcols) {
+ chcnt = col = 0;
+ endcol = maxlength;
+ (void)putchar('\n');
+ } else {
+ while ((cnt = TABROUND(chcnt)) <= endcol) {
+ (void)putchar('\t');
+ chcnt = cnt;
+ }
+ endcol += maxlength;
+ }
+ }
+ if (chcnt)
+ (void)putchar('\n');
+}
+
+static void
+r_columnate(void)
+{
+ int base, chcnt, cnt, col, endcol, numcols, numrows, row;
+
+ numcols = termwidth / maxlength;
+ numrows = entries / numcols;
+ if (entries % numcols)
+ ++numrows;
+
+ for (row = 0; row < numrows; ++row) {
+ endcol = maxlength;
+ for (base = row, chcnt = col = 0; col < numcols; ++col) {
+ chcnt += printf("%s", list[base]);
+ if ((base += numrows) >= entries)
+ break;
+ while ((cnt = TABROUND(chcnt)) <= endcol) {
+ (void)putchar('\t');
+ chcnt = cnt;
+ }
+ endcol += maxlength;
+ }
+ (void)putchar('\n');
+ }
+}
+
+static void
+print(void)
+{
+ int cnt;
+ char **lp;
+
+ for (cnt = entries, lp = list; cnt--; ++lp)
+ (void)printf("%s\n", *lp);
+}
+
+typedef struct _tbl {
+ char **list;
+ int cols, *len;
+} TBL;
+#define DEFCOLS 25
+
+static void
+maketbl(void)
+{
+ TBL *t;
+ int coloff, cnt;
+ char *p, **lp;
+ int *lens, *nlens, maxcols;
+ TBL *tbl;
+ char **cols, **ncols;
+
+ t = tbl = ecalloc(entries, sizeof(*t));
+ cols = ecalloc((maxcols = DEFCOLS), sizeof(*cols));
+ lens = ecalloc(maxcols, sizeof(*lens));
+ for (cnt = 0, lp = list; cnt < entries; ++cnt, ++lp, ++t) {
+ for (coloff = 0, p = *lp;
+ (cols[coloff] = strtok(p, separator)) != NULL; p = NULL)
+ if (++coloff == maxcols) {
+ ncols = erealloc(cols, (maxcols +
+ DEFCOLS) * sizeof(*ncols));
+ nlens = erealloc(lens, (maxcols +
+ DEFCOLS) * sizeof(*nlens));
+ cols = ncols;
+ lens = nlens;
+ (void)memset(cols + maxcols, 0,
+ DEFCOLS * sizeof(*cols));
+ (void)memset(lens + maxcols, 0,
+ DEFCOLS * sizeof(*lens));
+ maxcols += DEFCOLS;
+ }
+ t->list = ecalloc(coloff, sizeof(*(t->list)));
+ t->len = ecalloc(coloff, sizeof(*(t->len)));
+ for (t->cols = coloff; --coloff >= 0;) {
+ t->list[coloff] = cols[coloff];
+ t->len[coloff] = strlen(cols[coloff]);
+ if (t->len[coloff] > lens[coloff])
+ lens[coloff] = t->len[coloff];
+ }
+ }
+ for (cnt = 0, t = tbl; cnt < entries; ++cnt, ++t) {
+ for (coloff = 0; coloff < t->cols - 1; ++coloff)
+ (void)printf("%s%*s", t->list[coloff],
+ lens[coloff] - t->len[coloff] + 2, " ");
+ (void)printf("%s\n", t->list[coloff]);
+ }
+ free(tbl);
+ free(cols);
+ free(lens);
+}
+
+#define DEFNUM 1000
+
+static void
+input(FILE *fp)
+{
+ static int maxentry;
+ int len;
+ size_t blen;
+ char *p, *buf;
+ char **n;
+
+ if (!list)
+ list = ecalloc((maxentry = DEFNUM), sizeof(*list));
+ while ((buf = fgetln(fp, &blen)) != NULL) {
+ buf = estrndup(buf, blen);
+ for (p = buf; *p && isspace((unsigned char)*p); ++p);
+ if (!*p) {
+ free(buf);
+ continue;
+ }
+ if (!(p = strchr(p, '\n'))) {
+ warnx("line too long");
+ eval = 1;
+ free(buf);
+ continue;
+ }
+ *p = '\0';
+ len = p - buf;
+ if (maxlength < len)
+ maxlength = len;
+ if (entries == maxentry) {
+ n = erealloc(list, (maxentry + DEFNUM) * sizeof(*n));
+ (void)memset(n + maxentry, 0, sizeof(*n) * DEFNUM);
+ maxentry += DEFNUM;
+ list = n;
+ }
+ list[entries++] = buf;
+ }
+}
+
+static void
+usage(void)
+{
+
+ (void)fprintf(stderr,
+ "Usage: %s [-tx] [-c columns] [-s sep] [file ...]\n",
+ getprogname());
+ exit(1);
+}