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  
      24  enum { COL_NAME, COL_DESC, COL_FOO, COL_LIKE, COL_TEXT };
      25  
      26  /* add columns to the @tb */
      27  static void setup_columns(struct libscols_table *tb)
      28  {
      29  	if (!scols_table_new_column(tb, "NAME", 0, SCOLS_FL_TREE))
      30  		goto fail;
      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))
      38  		goto fail;
      39  	return;
      40  fail:
      41  	scols_unref_table(tb);
      42  	err(EXIT_FAILURE, "failed to create output columns");
      43  }
      44  
      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  
      49  	for ( ; (size_t)x < sz - 1; x++)
      50  		buf[x] = *prefix;
      51  
      52  	buf[x++] = 'x';
      53  	buf[x] = '\0';
      54  	return buf;
      55  }
      56  
      57  static struct libscols_line * add_line(	struct libscols_table *tb,
      58  					struct libscols_line *parent,
      59  					const char *prefix)
      60  {
      61  	char buf[BUFSIZ];
      62  	struct libscols_line *ln = scols_table_new_line(tb, parent);
      63  	if (!ln)
      64  		err(EXIT_FAILURE, "failed to create output line");
      65  
      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"))
      73  		goto fail;
      74  	if (scols_line_set_data(ln, COL_TEXT, gen_text(prefix, "T", buf, 50)))
      75  		goto fail;
      76  	return ln;
      77  fail:
      78  	scols_unref_table(tb);
      79  	err(EXIT_FAILURE, "failed to create output line");
      80  }
      81  
      82  int main(int argc, char *argv[])
      83  {
      84  	struct libscols_table *tb;
      85  	struct libscols_line *ln, *xln;
      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)
      93  		err(EXIT_FAILURE, "failed to create output table");
      94  
      95  	scols_table_enable_colors(tb, isatty(STDOUT_FILENO));
      96  	setup_columns(tb);
      97  
      98  	ln = add_line(tb, NULL, "A");
      99  	add_line(tb, ln, "aa");
     100  	add_line(tb, ln, "ab");
     101  
     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");
     107  
     108  	scols_print_table(tb);
     109  	scols_unref_table(tb);
     110  	return EXIT_SUCCESS;
     111  }