1 /*
2 +----------------------------------------------------------------------+
3 | Copyright (c) The PHP Group |
4 +----------------------------------------------------------------------+
5 | This source file is subject to version 3.01 of the PHP license, |
6 | that is bundled with this package in the file LICENSE, and is |
7 | available through the world-wide-web at the following url: |
8 | http://www.php.net/license/3_01.txt |
9 | If you did not receive a copy of the PHP license and are unable to |
10 | obtain it through the world-wide-web, please send a note to |
11 | license@php.net so we can mail you a copy immediately. |
12 +----------------------------------------------------------------------+
13 | Author: Sascha Schumann <sascha@schumann.cx> |
14 +----------------------------------------------------------------------+
15 */
16
17 #ifndef ZEND_SMART_STR_H
18 #define ZEND_SMART_STR_H
19
20 #include <zend.h>
21 #include "zend_globals.h"
22 #include "zend_smart_str_public.h"
23
24 #define smart_str_appends_ex(dest, src, what) \
25 smart_str_appendl_ex((dest), (src), strlen(src), (what))
26 #define smart_str_appends(dest, src) \
27 smart_str_appendl((dest), (src), strlen(src))
28 #define smart_str_extend(dest, len) \
29 smart_str_extend_ex((dest), (len), 0)
30 #define smart_str_appendc(dest, c) \
31 smart_str_appendc_ex((dest), (c), 0)
32 #define smart_str_appendl(dest, src, len) \
33 smart_str_appendl_ex((dest), (src), (len), 0)
34 #define smart_str_append(dest, src) \
35 smart_str_append_ex((dest), (src), 0)
36 #define smart_str_append_smart_str(dest, src) \
37 smart_str_append_smart_str_ex((dest), (src), 0)
38 #define smart_str_sets(dest, src) \
39 smart_str_setl((dest), (src), strlen(src));
40 #define smart_str_append_long(dest, val) \
41 smart_str_append_long_ex((dest), (val), 0)
42 #define smart_str_append_unsigned(dest, val) \
43 smart_str_append_unsigned_ex((dest), (val), 0)
44 #define smart_str_free(dest) \
45 smart_str_free_ex((dest), 0)
46
47 BEGIN_EXTERN_C()
48
49 ZEND_API void ZEND_FASTCALL smart_str_erealloc(smart_str *str, size_t len);
50 ZEND_API void ZEND_FASTCALL smart_str_realloc(smart_str *str, size_t len);
51 ZEND_API void ZEND_FASTCALL smart_str_append_escaped(smart_str *str, const char *s, size_t l);
52 ZEND_API void smart_str_append_printf(smart_str *dest, const char *format, ...)
53 ZEND_ATTRIBUTE_FORMAT(printf, 2, 3);
54
END_EXTERN_C()55 END_EXTERN_C()
56
57 static zend_always_inline size_t smart_str_alloc(smart_str *str, size_t len, zend_bool persistent) {
58 if (UNEXPECTED(!str->s)) {
59 goto do_smart_str_realloc;
60 } else {
61 len += ZSTR_LEN(str->s);
62 if (UNEXPECTED(len >= str->a)) {
63 do_smart_str_realloc:
64 if (persistent) {
65 smart_str_realloc(str, len);
66 } else {
67 smart_str_erealloc(str, len);
68 }
69 }
70 }
71 return len;
72 }
73
smart_str_extend_ex(smart_str * dest,size_t len,zend_bool persistent)74 static zend_always_inline char* smart_str_extend_ex(smart_str *dest, size_t len, zend_bool persistent) {
75 size_t new_len = smart_str_alloc(dest, len, persistent);
76 char *ret = ZSTR_VAL(dest->s) + ZSTR_LEN(dest->s);
77 ZSTR_LEN(dest->s) = new_len;
78 return ret;
79 }
80
smart_str_free_ex(smart_str * str,zend_bool persistent)81 static zend_always_inline void smart_str_free_ex(smart_str *str, zend_bool persistent) {
82 if (str->s) {
83 zend_string_release_ex(str->s, persistent);
84 str->s = NULL;
85 }
86 str->a = 0;
87 }
88
smart_str_0(smart_str * str)89 static zend_always_inline void smart_str_0(smart_str *str) {
90 if (str->s) {
91 ZSTR_VAL(str->s)[ZSTR_LEN(str->s)] = '\0';
92 }
93 }
94
smart_str_get_len(smart_str * str)95 static zend_always_inline size_t smart_str_get_len(smart_str *str) {
96 return str->s ? ZSTR_LEN(str->s) : 0;
97 }
98
smart_str_extract(smart_str * str)99 static zend_always_inline zend_string *smart_str_extract(smart_str *str) {
100 if (str->s) {
101 zend_string *res;
102 smart_str_0(str);
103 res = str->s;
104 str->s = NULL;
105 return res;
106 } else {
107 return ZSTR_EMPTY_ALLOC();
108 }
109 }
110
smart_str_appendc_ex(smart_str * dest,char ch,zend_bool persistent)111 static zend_always_inline void smart_str_appendc_ex(smart_str *dest, char ch, zend_bool persistent) {
112 size_t new_len = smart_str_alloc(dest, 1, persistent);
113 ZSTR_VAL(dest->s)[new_len - 1] = ch;
114 ZSTR_LEN(dest->s) = new_len;
115 }
116
smart_str_appendl_ex(smart_str * dest,const char * str,size_t len,zend_bool persistent)117 static zend_always_inline void smart_str_appendl_ex(smart_str *dest, const char *str, size_t len, zend_bool persistent) {
118 size_t new_len = smart_str_alloc(dest, len, persistent);
119 memcpy(ZSTR_VAL(dest->s) + ZSTR_LEN(dest->s), str, len);
120 ZSTR_LEN(dest->s) = new_len;
121 }
122
smart_str_append_ex(smart_str * dest,const zend_string * src,zend_bool persistent)123 static zend_always_inline void smart_str_append_ex(smart_str *dest, const zend_string *src, zend_bool persistent) {
124 smart_str_appendl_ex(dest, ZSTR_VAL(src), ZSTR_LEN(src), persistent);
125 }
126
smart_str_append_smart_str_ex(smart_str * dest,const smart_str * src,zend_bool persistent)127 static zend_always_inline void smart_str_append_smart_str_ex(smart_str *dest, const smart_str *src, zend_bool persistent) {
128 if (src->s && ZSTR_LEN(src->s)) {
129 smart_str_append_ex(dest, src->s, persistent);
130 }
131 }
132
smart_str_append_long_ex(smart_str * dest,zend_long num,zend_bool persistent)133 static zend_always_inline void smart_str_append_long_ex(smart_str *dest, zend_long num, zend_bool persistent) {
134 char buf[32];
135 char *result = zend_print_long_to_buf(buf + sizeof(buf) - 1, num);
136 smart_str_appendl_ex(dest, result, buf + sizeof(buf) - 1 - result, persistent);
137 }
138
smart_str_append_unsigned_ex(smart_str * dest,zend_ulong num,zend_bool persistent)139 static zend_always_inline void smart_str_append_unsigned_ex(smart_str *dest, zend_ulong num, zend_bool persistent) {
140 char buf[32];
141 char *result = zend_print_ulong_to_buf(buf + sizeof(buf) - 1, num);
142 smart_str_appendl_ex(dest, result, buf + sizeof(buf) - 1 - result, persistent);
143 }
144
smart_str_setl(smart_str * dest,const char * src,size_t len)145 static zend_always_inline void smart_str_setl(smart_str *dest, const char *src, size_t len) {
146 smart_str_free(dest);
147 smart_str_appendl(dest, src, len);
148 }
149
150 #endif
151
