summaryrefslogtreecommitdiff
path: root/src/sbuf.c
blob: 2049dcc45200719b36f04e5d83551525ce68c07b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
/* Functions for handling string buffers.
 * Copyright (C) 2000, 2001 Shawn Betts
 *
 * This file is part of ratpoison.
 *
 * ratpoison is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 * 
 * ratpoison is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this software; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307 USA
 */

#include <string.h>

#include "ratpoison.h"
#include "sbuf.h"

struct sbuf *
sbuf_new (size_t initsz)
{
  struct sbuf *b = (struct sbuf*) xmalloc (sizeof (struct sbuf));

  if (initsz < 1) 
    initsz = 1;

  b->data = (char*) xmalloc (initsz);
  b->maxsz = initsz;

  b->data[0] = '\0';
  b->len = 0;

  return b;
}

void
sbuf_free (struct sbuf *b)
{
  if (b != NULL)
    {
      if (b->data != NULL)
	free (b->data);
      
      free (b);
    }
}

char *
sbuf_concat (struct sbuf *b, const char *str)
{
  size_t minsz = b->len + strlen (str) + 1;

  if (b->maxsz < minsz)
    {
      b->data = (char*) xrealloc (b->data, minsz);
      b->maxsz = minsz;
    }
  
  memcpy (b->data + b->len, str, minsz - b->len - 1);
  b->len = minsz - 1;
  *(b->data + b->len) = 0;

  return b->data;
}

char *
sbuf_copy (struct sbuf *b, const char *str)
{
  b->len = 0;
  return sbuf_concat (b, str);
}

char *
sbuf_clear (struct sbuf *b)
{
  b->len = 0;
  b->data[0] = '\0';
  return b->data;
}

char *
sbuf_get (struct sbuf *b)
{
  return b->data;
}

char *
sbuf_printf (struct sbuf *b, char *fmt, ...)
{
  va_list ap;

  free (b->data);

  va_start (ap, fmt);
  b->data = xvsprintf (fmt, ap);
  va_end (ap);

  return b->data;
}

char *
sbuf_printf_concat (struct sbuf *b, char *fmt, ...)
{
  char *buffer;
  va_list ap;

  va_start (ap, fmt);
  buffer = xvsprintf (fmt, ap);
  va_end (ap);

  sbuf_concat (b, buffer);
  free (buffer);

  return b->data;
}