summaryrefslogtreecommitdiff
path: root/libguile/deprecated.c
blob: e39d11e9d848c43d4a18ca8e7249360507f78a83 (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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
/* Copyright 2003-2004,2006,2008-2018,2020
     Free Software Foundation, Inc.

   This file is part of Guile.

   Guile is free software: you can redistribute it and/or modify it
   under the terms of the GNU Lesser General Public License as published
   by the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   Guile 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 Lesser General Public
   License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with Guile.  If not, see
   <https://www.gnu.org/licenses/>.  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <stdio.h>
#include <string.h>
#include <unistd.h>

#define SCM_BUILDING_DEPRECATED_CODE

#include "boolean.h"
#include "bitvectors.h"
#include "deprecation.h"
#include "gc.h"
#include "gsubr.h"
#include "strings.h"

#include "deprecated.h"

#if (SCM_ENABLE_DEPRECATED == 1)



#ifndef MAXPATHLEN
#define MAXPATHLEN 80
#endif /* ndef MAXPATHLEN */
#ifndef X_OK
#define X_OK 1
#endif /* ndef X_OK */

char *
scm_find_executable (const char *name)
{
  char tbuf[MAXPATHLEN];
  int i = 0, c;
  FILE *f;

  scm_c_issue_deprecation_warning ("scm_find_executable is deprecated.");

  /* fprintf(stderr, "s_f_e checking access %s ->%d\n", name, access(name, X_OK)); fflush(stderr); */
  if (access (name, X_OK))
    return 0L;
  f = fopen (name, "r");
  if (!f)
    return 0L;
  if ((fgetc (f) == '#') && (fgetc (f) == '!'))
    {
      while (1)
	switch (c = fgetc (f))
	  {
	  case /*WHITE_SPACES */ ' ':
	  case '\t':
	  case '\r':
	  case '\f':
	  case EOF:
	    tbuf[i] = 0;
	    fclose (f);
	    return strdup (tbuf);
	  default:
	    tbuf[i++] = c;
	    break;
	  }
    }
  fclose (f);
  return strdup (name);
}




SCM_DEFINE (scm_bit_count, "bit-count", 2, 0, 0,
	    (SCM b, SCM bitvector),
	    "Return the number of occurrences of the boolean @var{b} in\n"
	    "@var{bitvector}.")
#define FUNC_NAME s_scm_bit_count
{
  int bit = scm_to_bool (b);
  size_t count = 0, len;

  scm_c_issue_deprecation_warning
    ("bit-count is deprecated.  Use bitvector-count, or a loop over array-ref "
     "if array support is needed.");

  if (scm_is_true (scm_bitvector_p (bitvector)))
    {
      len = scm_to_size_t (scm_bitvector_length (bitvector));
      count = scm_to_size_t (scm_bitvector_count (bitvector));
    }
  else
    {
      scm_t_array_handle handle;
      size_t off;
      ssize_t inc;

      scm_bitvector_elements (bitvector, &handle, &off, &len, &inc);

      for (size_t i = 0; i < len; i++)
	if (scm_is_true (scm_array_handle_ref (&handle, i*inc)))
	  count++;

      scm_array_handle_release (&handle);
    }
  
  return scm_from_size_t (bit ? count : len-count);
}
#undef FUNC_NAME

SCM
scm_istr2bve (SCM str)
{
  scm_t_array_handle handle;
  size_t len = scm_i_string_length (str);
  SCM vec = scm_c_make_bitvector (len, SCM_UNDEFINED);
  SCM res = vec;

  uint32_t mask;
  size_t k, j;
  const char *c_str;
  uint32_t *data;

  scm_c_issue_deprecation_warning
    ("scm_istr2bve is deprecated.  "
     "Read from a string instead, prefixed with `#*'.");

  data = scm_bitvector_writable_elements (vec, &handle, NULL, NULL, NULL);
  c_str = scm_i_string_chars (str);

  for (k = 0; k < (len + 31) / 32; k++)
    {
      data[k] = 0L;
      j = len - k * 32;
      if (j > 32)
	j = 32;
      for (mask = 1L; j--; mask <<= 1)
	switch (*c_str++)
	  {
	  case '0':
	    break;
	  case '1':
	    data[k] |= mask;
	    break;
	  default:
	    res = SCM_BOOL_F;
	    goto exit;
	  }
    }
  
 exit:
  scm_array_handle_release (&handle);
  scm_remember_upto_here_1 (str);
  return res;
}




void
scm_i_init_deprecated ()
{
#include "deprecated.x"
}

#endif /* SCM_ENABLE_DEPRECATD == 1 */