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
|
/*
* Copyright © 2016 Keith Packard <keithp@keithp.com>
*
* This program 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; version 2 of the License.
*
* This program 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 program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "ao_lisp.h"
static void string_mark(void *addr)
{
(void) addr;
}
static int string_size(void *addr)
{
if (!addr)
return 0;
return strlen(addr) + 1;
}
static void string_move(void *addr)
{
(void) addr;
}
char *
ao_lisp_string_new(int len) {
char *a = ao_lisp_alloc(len + 1);
if (!a)
return NULL;
a[len] = '\0';
return a;
}
char *
ao_lisp_string_copy(char *a)
{
int alen = strlen(a);
char *r = ao_lisp_alloc(alen + 1);
if (!r)
return NULL;
strcpy(r, a);
return r;
}
char *
ao_lisp_string_cat(char *a, char *b)
{
int alen = strlen(a);
int blen = strlen(b);
char *r = ao_lisp_alloc(alen + blen + 1);
if (!r)
return NULL;
strcpy(r, a);
strcpy(r+alen, b);
return r;
}
const struct ao_lisp_mem_type ao_lisp_string_type = {
.mark = string_mark,
.size = string_size,
.move = string_move,
};
void
ao_lisp_string_print(char *s)
{
char c;
putchar('"');
while ((c = *s++)) {
switch (c) {
case '\n':
printf ("\\n");
break;
case '\r':
printf ("\\r");
break;
case '\t':
printf ("\\t");
break;
default:
putchar(c);
break;
}
}
putchar('"');
}
|
