libsmartcols/samples/wrap.c

   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, "faild 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, "faild 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, "faild to create output table");
  94
  95         scols_table_enable_colors(tb, 1);
  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 }