summaryrefslogtreecommitdiff
path: root/ext/standard/php_smart_str.h
blob: b99230dd8661992efc1ea4e5055b1915c4077019 (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
/*
   +----------------------------------------------------------------------+
   | PHP Version 4                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2002 The PHP Group                                |
   +----------------------------------------------------------------------+
   | This source file is subject to version 2.02 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available at through the world-wide-web at                           |
   | http://www.php.net/license/2_02.txt.                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Sascha Schumann <sascha@schumann.cx>                        |
   +----------------------------------------------------------------------+
 */

#ifndef PHP_SMART_STR_H
#define PHP_SMART_STR_H

#include "php_smart_str_public.h"

#include <stdlib.h>
#include <zend.h>

#define smart_str_0(x) ((x)->c[(x)->len] = '\0')

#ifndef SMART_STR_PREALLOC
#define SMART_STR_PREALLOC 128
#endif

#define smart_str_alloc(d, n, what) {\
	if (!d->c) d->len = d->a = 0; \
	newlen = d->len + n; \
	if (newlen >= d->a) {\
		d->c = perealloc(d->c, newlen + SMART_STR_PREALLOC + 1, what); \
		d->a = newlen + SMART_STR_PREALLOC; \
	}\
}

#define smart_str_appends_ex(dest, src, what) smart_str_appendl_ex(dest, src, strlen(src), what)
#define smart_str_appends(dest, src) smart_str_appendl(dest, src, strlen(src))

#define smart_str_appendc(dest, c) smart_str_appendc_ex(dest, c, 0)
#define smart_str_free(s) smart_str_free_ex(s, 0)
#define smart_str_appendl(dest, src, len) smart_str_appendl_ex(dest, src, len, 0)
#define smart_str_append(dest, src) smart_str_append_ex(dest, src, 0)
#define smart_str_append_long(dest, val) smart_str_append_long_ex(dest, val, 0)

static inline void smart_str_appendc_ex(smart_str *dest, char c, int what)
{
	size_t newlen;

	smart_str_alloc(dest, 1, what);
	dest->len = newlen;
	dest->c[dest->len - 1] = c;
}


static inline void smart_str_free_ex(smart_str *s, int what)
{
	if (s->c) {
		pefree(s->c, what);
		s->c = NULL;
	}
	s->a = s->len = 0;
}

static inline void smart_str_appendl_ex(smart_str *dest, const char *src, size_t len, int what)
{
	size_t newlen;

	smart_str_alloc(dest, len, what);
	memcpy(dest->c + dest->len, src, len);
	dest->len = newlen;
}

static inline char *smart_str_print_long(char *buf, long num)
{
	char *p = buf, *end;
	int n;
	long tmp;
	
	if (num < 0) {
		num = -num;
		*p++ = '-';
	}

	/* many numbers are < 10 */
	if (num < 10) {
		*p++ = num + '0';
		return p;
	}

	n = 1;
	tmp = num;

	/* calculate the number of digits we need */
	do {
		tmp /= 10;
		n++;
	} while (tmp >= 10);

	end = p += n;
	
	do {
		*--p = (num % 10) + '0';
		num /= 10;
	} while (--n > 0);

	return end;
}

static inline void smart_str_append_long_ex(smart_str *dest, long num, int type)
{
	char buf[32];
	char *p = smart_str_print_long(buf, num);
	smart_str_appendl_ex(dest, buf, p - buf, type);
}

static inline void smart_str_append_ex(smart_str *dest, smart_str *src, int what)
{
	smart_str_appendl_ex(dest, src->c, src->len, what);
}

static inline void smart_str_setl(smart_str *dest, const char *src, size_t len)
{
	dest->len = len;
	dest->a = len + 1;
	dest->c = (char *) src;
}

static inline void smart_str_sets(smart_str *dest, const char *src)
{
	smart_str_setl(dest, src, strlen(src));
}

#endif