[thirdparty/util-linux.git] / libsmartcols / samples / wrap.c

/*
 * Copyright (C) 2010-2014 Karel Zak <kzak@redhat.com>
 *
 * This file may be redistributed under the terms of the
 * GNU Lesser General Public License.
 */
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <getopt.h>

#include "c.h"
#include "nls.h"
#include "strutils.h"
#include "xalloc.h"

#include "libsmartcols.h"


enum { COL_NAME, COL_DESC, COL_FOO, COL_LIKE, COL_TEXT };

/* add columns to the @tb */
static void setup_columns(struct libscols_table *tb)
{
	if (!scols_table_new_column(tb, "NAME", 0, SCOLS_FL_TREE))
		goto fail;
	if (!scols_table_new_column(tb, "DESC", 0, 0))
		goto fail;
	if (!scols_table_new_column(tb, "FOO", 0, SCOLS_FL_WRAP))
		goto fail;
	if (!scols_table_new_column(tb, "LIKE", 0, SCOLS_FL_RIGHT))
		goto fail;
	if (!scols_table_new_column(tb, "TEXT", 0, SCOLS_FL_WRAP))
		goto fail;
	return;
fail:
	scols_unref_table(tb);
	err(EXIT_FAILURE, "failed to create output columns");
}

static char *gen_text(const char *prefix, const char *sub_prefix, char *buf, size_t sz)
{
	int x = snprintf(buf, sz,  "%s-%s-", prefix, sub_prefix);

	for ( ; (size_t)x < sz - 1; x++)
		buf[x] = *prefix;

	buf[x++] = 'x';
	buf[x] = '\0';
	return buf;
}

static struct libscols_line * add_line(	struct libscols_table *tb,
					struct libscols_line *parent,
					const char *prefix)
{
	char buf[BUFSIZ];
	struct libscols_line *ln = scols_table_new_line(tb, parent);
	if (!ln)
		err(EXIT_FAILURE, "failed to create output line");

	if (scols_line_set_data(ln, COL_NAME, gen_text(prefix, "N", buf, 15)))
		goto fail;
	if (scols_line_set_data(ln, COL_DESC, gen_text(prefix, "D", buf, 10)))
		goto fail;
	if (scols_line_set_data(ln, COL_FOO, gen_text(prefix, "U", buf, 55)))
		goto fail;
	if (scols_line_set_data(ln, COL_LIKE, "1"))
		goto fail;
	if (scols_line_set_data(ln, COL_TEXT, gen_text(prefix, "T", buf, 50)))
		goto fail;
	return ln;
fail:
	scols_unref_table(tb);
	err(EXIT_FAILURE, "failed to create output line");
}

int main(int argc, char *argv[])
{
	struct libscols_table *tb;
	struct libscols_line *ln, *xln;

	setlocale(LC_ALL, "");	/* just to have enable UTF8 chars */

	scols_init_debug(0);

	tb = scols_new_table();
	if (!tb)
		err(EXIT_FAILURE, "failed to create output table");

	scols_table_enable_colors(tb, isatty(STDOUT_FILENO));
	setup_columns(tb);

	ln = add_line(tb, NULL, "A");
	add_line(tb, ln, "aa");
	add_line(tb, ln, "ab");

	ln = add_line(tb, NULL, "B");
	xln = add_line(tb, ln, "ba");
	add_line(tb, xln, "baa");
	add_line(tb, xln, "bab");
	add_line(tb, ln, "bb");

	scols_print_table(tb);
	scols_unref_table(tb);
	return EXIT_SUCCESS;
}
Commit	Line	Data
e90f4b67 KZ	1	/*
	2	* Copyright (C) 2010-2014 Karel Zak <kzak@redhat.com>
	3	*
	4	* This file may be redistributed under the terms of the
	5	* GNU Lesser General Public License.
	6	*/
	7	#include <stdlib.h>
	8	#include <unistd.h>
	9	#include <string.h>
	10	#include <errno.h>
	11	#include <sys/types.h>
	12	#include <sys/stat.h>
	13	#include <dirent.h>
	14	#include <getopt.h>
	15
	16	#include "c.h"
	17	#include "nls.h"
	18	#include "strutils.h"
	19	#include "xalloc.h"
	20
	21	#include "libsmartcols.h"
	22
	23
20759a42	24	enum { COL_NAME, COL_DESC, COL_FOO, COL_LIKE, COL_TEXT };
e90f4b67 KZ	25
	26	/* add columns to the @tb */
	27	static void setup_columns(struct libscols_table *tb)
	28	{
e85c8c98	29	if (!scols_table_new_column(tb, "NAME", 0, SCOLS_FL_TREE))
e90f4b67	30	goto fail;
20759a42 KZ	31	if (!scols_table_new_column(tb, "DESC", 0, 0))
	32	goto fail;
	33	if (!scols_table_new_column(tb, "FOO", 0, SCOLS_FL_WRAP))
	34	goto fail;
	35	if (!scols_table_new_column(tb, "LIKE", 0, SCOLS_FL_RIGHT))
	36	goto fail;
	37	if (!scols_table_new_column(tb, "TEXT", 0, SCOLS_FL_WRAP))
e90f4b67 KZ	38	goto fail;
	39	return;
	40	fail:
	41	scols_unref_table(tb);
9e930041	42	err(EXIT_FAILURE, "failed to create output columns");
e90f4b67 KZ	43	}
e90f4b67 KZ	44
20759a42 KZ	45	static char gen_text(const char prefix, const char sub_prefix, char buf, size_t sz)
	46	{
	47	int x = snprintf(buf, sz, "%s-%s-", prefix, sub_prefix);
	48
5fde1d9f	49	for ( ; (size_t)x < sz - 1; x++)
20759a42 KZ	50	buf[x] = *prefix;
	51
	52	buf[x++] = 'x';
	53	buf[x] = '\0';
	54	return buf;
	55	}
	56
e85c8c98 KZ	57	static struct libscols_line * add_line( struct libscols_table *tb,
e85c8c98 KZ	58	struct libscols_line *parent,
20759a42	59	const char *prefix)
e90f4b67	60	{
20759a42	61	char buf[BUFSIZ];
e85c8c98	62	struct libscols_line *ln = scols_table_new_line(tb, parent);
e90f4b67 KZ	63	if (!ln)
	64	err(EXIT_FAILURE, "failed to create output line");
	65
20759a42 KZ	66	if (scols_line_set_data(ln, COL_NAME, gen_text(prefix, "N", buf, 15)))
	67	goto fail;
	68	if (scols_line_set_data(ln, COL_DESC, gen_text(prefix, "D", buf, 10)))
	69	goto fail;
	70	if (scols_line_set_data(ln, COL_FOO, gen_text(prefix, "U", buf, 55)))
	71	goto fail;
	72	if (scols_line_set_data(ln, COL_LIKE, "1"))
e90f4b67	73	goto fail;
20759a42	74	if (scols_line_set_data(ln, COL_TEXT, gen_text(prefix, "T", buf, 50)))
e90f4b67	75	goto fail;
e85c8c98	76	return ln;
e90f4b67 KZ	77	fail:
e90f4b67 KZ	78	scols_unref_table(tb);
9e930041	79	err(EXIT_FAILURE, "failed to create output line");
e90f4b67 KZ	80	}
	81
	82	int main(int argc, char *argv[])
	83	{
	84	struct libscols_table *tb;
20759a42	85	struct libscols_line ln, xln;
e90f4b67 KZ	86
	87	setlocale(LC_ALL, ""); /* just to have enable UTF8 chars */
	88
	89	scols_init_debug(0);
	90
	91	tb = scols_new_table();
	92	if (!tb)
9e930041	93	err(EXIT_FAILURE, "failed to create output table");
e90f4b67	94
066779c6	95	scols_table_enable_colors(tb, isatty(STDOUT_FILENO));
e90f4b67 KZ	96	setup_columns(tb);
e90f4b67 KZ	97
20759a42 KZ	98	ln = add_line(tb, NULL, "A");
	99	add_line(tb, ln, "aa");
	100	add_line(tb, ln, "ab");
e85c8c98	101
20759a42 KZ	102	ln = add_line(tb, NULL, "B");
	103	xln = add_line(tb, ln, "ba");
	104	add_line(tb, xln, "baa");
	105	add_line(tb, xln, "bab");
	106	add_line(tb, ln, "bb");
e90f4b67 KZ	107
	108	scols_print_table(tb);
	109	scols_unref_table(tb);
	110	return EXIT_SUCCESS;
	111	}