/*
* 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. 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.
*/
/*
* 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
* added Native Language Support
* 1999-09-19 Bruno Haible <haible@clisp.cons.org>
* modified to work correctly in multi-byte locales
*/
#include <sys/types.h>
#include <sys/ioctl.h>
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <getopt.h>
#include "nls.h"
#include "widechar.h"
#include "c.h"
#include "xalloc.h"
#include "strutils.h"
#ifdef HAVE_WIDECHAR
#define wcs_width(s) wcswidth(s,wcslen(s))
static wchar_t *mbs_to_wcs(const char *);
#else
#define wcs_width(s) strlen(s)
#define mbs_to_wcs(s) xstrdup(s)
static char *mtsafe_strtok(char *, const char *, char **);
#define wcstok mtsafe_strtok
#endif
#define DEFCOLS 25
#define TAB 8
#define DEFNUM 1000
#define MAXLINELEN (LINE_MAX + 1)
static int input(FILE *fp, int *maxlength, wchar_t ***list, int *entries);
static void c_columnate(int maxlength, long termwidth, wchar_t **list, int entries);
static void r_columnate(int maxlength, long termwidth, wchar_t **list, int entries);
static void maketbl(wchar_t **list, int entries, wchar_t *separator);
static void print(wchar_t **list, int entries);
typedef struct _tbl {
wchar_t **list;
int cols, *len;
} TBL;
static void __attribute__((__noreturn__)) usage(int rc)
{
FILE *out = rc == EXIT_FAILURE ? stderr : stdout;
fprintf(out, _("\nUsage: %s [options] [file ...]\n"),
program_invocation_short_name);
fprintf(out, _("\nOptions:\n"));
fprintf(out, _(
" -h, --help displays this help text\n"
" -V, --version output version information and exit\n"
" -c, --columns <width> width of output in number of characters\n"
" -t, --table create a table\n"
" -s, --separator <string> table delimeter\n"
" -x, --fillrows fill rows before columns\n"));
fprintf(out, _("\nFor more information see column(1).\n"));
exit(rc);
}
int main(int argc, char **argv)
{
struct winsize win;
FILE *fp;
int ch, tflag, xflag;
char *p;
long termwidth;
int entries = 0; /* number of records */
unsigned int eval = 0; /* exit value */
int maxlength; /* longest record */
wchar_t **list = NULL; /* array of pointers to records */
/* field separator for table option */
wchar_t default_separator[] = { '\t', ' ', 0 };
wchar_t *separator = default_separator;
static const struct option longopts[] =
{
{ "help", 0, 0, 'h' },
{ "version", 0, 0, 'V' },
{ "columns", 0, 0, 'c' },
{ "table", 0, 0, 't' },
{ "separator", 0, 0, 's' },
{ "fillrows", 0, 0, 'x' },
{ NULL, 0, 0, 0 },
};
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
if (ioctl(STDIN_FILENO, TIOCGWINSZ, &win) == -1 || !win.ws_col) {
if ((p = getenv("COLUMNS")) != NULL)
termwidth = strtol_or_err(p,
_("terminal environment COLUMNS failed"));
} else
termwidth = win.ws_col;
tflag = xflag = 0;
while ((ch = getopt_long(argc, argv, "hVc:s:tx", longopts, NULL)) != -1)
switch(ch) {
case 'h':
usage(EXIT_SUCCESS);
break;
case 'V':
printf(_("%s from %s\n"), program_invocation_short_name,
PACKAGE_STRING);
return EXIT_SUCCESS;
case 'c':
termwidth = strtol_or_err(optarg,
_("bad columns width value"));
if (termwidth < 1)
errx(EXIT_FAILURE,
_("-%c positive integer expected as an argument"), ch);
break;
case 's':
separator = mbs_to_wcs(optarg);
break;
case 't':
tflag = 1;
break;
case 'x':
xflag = 1;
break;
default:
usage(EXIT_FAILURE);
}
argc -= optind;
argv += optind;
if (!*argv)
eval += input(stdin, &maxlength, &list, &entries);
else
for (; *argv; ++argv) {
if ((fp = fopen(*argv, "r")) != NULL) {
eval += input(fp, &maxlength, &list, &entries);
fclose(fp);
} else {
warn("%s", *argv);
eval += EXIT_FAILURE;
}
}
if (!entries)
exit(eval);
if (tflag)
maketbl(list, entries, separator);
else if (maxlength >= termwidth)
print(list, entries);
else if (xflag)
c_columnate(maxlength, termwidth, list, entries);
else
r_columnate(maxlength, termwidth, list, entries);
for (int i = 0; i < entries; i++)
free(list[i]);
free(list);
if (ferror(stdout) || fclose(stdout))
eval += EXIT_FAILURE;
if (eval == 0)
return EXIT_SUCCESS;
else
return EXIT_FAILURE;
}
static void c_columnate(int maxlength, long termwidth, wchar_t **list, int entries)
{
int chcnt, col, cnt, endcol, numcols;
wchar_t **lp;
maxlength = (maxlength + TAB) & ~(TAB - 1);
numcols = termwidth / maxlength;
endcol = maxlength;
for (chcnt = col = 0, lp = list;; ++lp) {
fputws(*lp, stdout);
chcnt += wcs_width(*lp);
if (!--entries)
break;
if (++col == numcols) {
chcnt = col = 0;
endcol = maxlength;
putwchar('\n');
} else {
while ((cnt = ((chcnt + TAB) & ~(TAB - 1))) <= endcol) {
putwchar('\t');
chcnt = cnt;
}
endcol += maxlength;
}
}
if (chcnt)
putwchar('\n');
}
static void r_columnate(int maxlength, long termwidth, wchar_t **list, int entries)
{
int base, chcnt, cnt, col, endcol, numcols, numrows, row;
maxlength = (maxlength + TAB) & ~(TAB - 1);
numcols = termwidth / maxlength;
if (!numcols)
numcols = 1;
numrows = entries / numcols;
if (entries % numcols)
++numrows;
for (row = 0; row < numrows; ++row) {
endcol = maxlength;
for (base = row, chcnt = col = 0; col < numcols; ++col) {
fputws(list[base], stdout);
chcnt += wcs_width(list[base]);
if ((base += numrows) >= entries)
break;
while ((cnt = ((chcnt + TAB) & ~(TAB - 1))) <= endcol) {
putwchar('\t');
chcnt = cnt;
}
endcol += maxlength;
}
putwchar('\n');
}
}
static void print(wchar_t **list, int entries)
{
int cnt;
wchar_t **lp;
for (cnt = entries, lp = list; cnt--; ++lp) {
fputws(*lp, stdout);
putwchar('\n');
}
}
static void maketbl(wchar_t **list, int entries, wchar_t *separator)
{
TBL *t;
int cnt, i;
wchar_t *p, **lp;
ssize_t *lens;
ssize_t maxcols = DEFCOLS, coloff;
TBL *tbl;
wchar_t **cols;
wchar_t *wcstok_state;
t = tbl = xcalloc(entries, sizeof(TBL));
cols = xcalloc(maxcols, sizeof(wchar_t *));
lens = xcalloc(maxcols, sizeof(ssize_t));
for (lp = list, cnt = 0; cnt < entries; ++cnt, ++lp, ++t) {
coloff = 0;
p = *lp;
while ((cols[coloff] = wcstok(p, separator, &wcstok_state)) != NULL) {
if (++coloff == maxcols) {
maxcols += DEFCOLS;
cols = xrealloc(cols, maxcols * sizeof(wchar_t *));
lens = xrealloc(lens, maxcols * sizeof(ssize_t));
/* zero fill only new memory */
memset(lens + ((maxcols - DEFCOLS) * sizeof(ssize_t)), 0,
DEFCOLS * sizeof(int));
}
p = NULL;
}
t->list = xcalloc(coloff, sizeof(wchar_t *));
t->len = xcalloc(coloff, sizeof(int));
for (t->cols = coloff; --coloff >= 0;) {
t->list[coloff] = cols[coloff];
t->len[coloff] = wcs_width(cols[coloff]);
if (t->len[coloff] > lens[coloff])
lens[coloff] = t->len[coloff];
}
}
for (t = tbl, cnt = 0; cnt < entries; ++cnt, ++t) {
for (coloff = 0; coloff < t->cols - 1; ++coloff) {
fputws(t->list[coloff], stdout);
for (i = lens[coloff] - t->len[coloff] + 2; i > 0; i--)
putwchar(' ');
}
if (coloff < t->cols) {
fputws(t->list[coloff], stdout);
putwchar('\n');
}
}
for (cnt = 0; cnt < entries; ++cnt) {
free((tbl+cnt)->list);
free((tbl+cnt)->len);
}
free(cols);
free(lens);
free(tbl);
}
static int input(FILE *fp, int *maxlength, wchar_t ***list, int *entries)
{
static int maxentry = DEFNUM;
int len, lineno = 1, reportedline = 0, eval = 0;
wchar_t *p, buf[MAXLINELEN];
wchar_t **local_list;
int local_entries = *entries;
if (!local_list)
local_list = xcalloc(maxentry, sizeof(wchar_t *));
while (fgetws(buf, MAXLINELEN, fp)) {
for (p = buf; *p && iswspace(*p); ++p)
;
if (!*p)
continue;
if (!(p = wcschr(p, '\n')) && !feof(fp)) {
if (reportedline < lineno) {
warnx(_("line %d is too long, output will be truncated"),
lineno);
reportedline = lineno;
}
eval = 1;
continue;
}
lineno++;
if (!feof(fp))
*p = '\0';
len = wcs_width(buf); /* len = p - buf; */
if (*maxlength < len)
*maxlength = len;
if (local_entries == maxentry) {
maxentry += DEFNUM;
local_list = xrealloc(local_list,
(u_int)maxentry * sizeof(wchar_t *));
}
local_list[local_entries++] = wcsdup(buf);
}
*list = local_list;
*entries = local_entries;
return eval;
}
#ifdef HAVE_WIDECHAR
static wchar_t *mbs_to_wcs(const char *s)
{
ssize_t n;
wchar_t *wcs;
n = mbstowcs((wchar_t *)0, s, 0);
if (n < 0)
return NULL;
wcs = malloc((n + 1) * sizeof(wchar_t));
if (!wcs)
return NULL;
n = mbstowcs(wcs, s, n + 1);
if (n < 0)
return NULL;
return wcs;
}
#endif
#ifndef HAVE_WIDECHAR
static char *mtsafe_strtok(char *str, const char *delim, char **ptr)
{
if (str == NULL) {
str = *ptr;
if (str == NULL)
return NULL;
}
str += strspn(str, delim);
if (*str == '\0') {
*ptr = NULL;
return NULL;
} else {
char *token_end = strpbrk(str, delim);
if (token_end) {
*token_end = '\0';
*ptr = token_end + 1;
} else
*ptr = NULL;
return str;
}
}
#endif
