1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 7 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2018 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Author: Sascha Schumann <sascha@schumann.cx> |
16 +----------------------------------------------------------------------+
17 */
18
19 #ifndef ZEND_SMART_STR_H
20 #define ZEND_SMART_STR_H
21
22 #include <zend.h>
23 #include "zend_smart_str_public.h"
24
25 #define smart_str_appends_ex(dest, src, what) \
26 smart_str_appendl_ex((dest), (src), strlen(src), (what))
27 #define smart_str_appends(dest, src) \
28 smart_str_appendl((dest), (src), strlen(src))
29 #define smart_str_appendc(dest, c) \
30 smart_str_appendc_ex((dest), (c), 0)
31 #define smart_str_appendl(dest, src, len) \
32 smart_str_appendl_ex((dest), (src), (len), 0)
33 #define smart_str_append(dest, src) \
34 smart_str_append_ex((dest), (src), 0)
35 #define smart_str_append_smart_str(dest, src) \
36 smart_str_append_smart_str_ex((dest), (src), 0)
37 #define smart_str_sets(dest, src) \
38 smart_str_setl((dest), (src), strlen(src));
39 #define smart_str_append_long(dest, val) \
40 smart_str_append_long_ex((dest), (val), 0)
41 #define smart_str_append_unsigned(dest, val) \
42 smart_str_append_unsigned_ex((dest), (val), 0)
43
44 BEGIN_EXTERN_C()
45
46 ZEND_API void ZEND_FASTCALL smart_str_erealloc(smart_str *str, size_t len);
47 ZEND_API void ZEND_FASTCALL smart_str_realloc(smart_str *str, size_t len);
48 ZEND_API void ZEND_FASTCALL smart_str_append_escaped(smart_str *str, const char *s, size_t l);
49
END_EXTERN_C()50 END_EXTERN_C()
51
52 static zend_always_inline size_t smart_str_alloc(smart_str *str, size_t len, zend_bool persistent) {
53 if (UNEXPECTED(!str->s)) {
54 goto do_smart_str_realloc;
55 } else {
56 len += ZSTR_LEN(str->s);
57 if (UNEXPECTED(len >= str->a)) {
58 do_smart_str_realloc:
59 if (persistent) {
60 smart_str_realloc(str, len);
61 } else {
62 smart_str_erealloc(str, len);
63 }
64 }
65 }
66 return len;
67 }
68
smart_str_free(smart_str * str)69 static zend_always_inline void smart_str_free(smart_str *str) {
70 if (str->s) {
71 zend_string_release(str->s);
72 str->s = NULL;
73 }
74 str->a = 0;
75 }
76
smart_str_0(smart_str * str)77 static zend_always_inline void smart_str_0(smart_str *str) {
78 if (str->s) {
79 ZSTR_VAL(str->s)[ZSTR_LEN(str->s)] = '\0';
80 }
81 }
82
smart_str_appendc_ex(smart_str * dest,char ch,zend_bool persistent)83 static zend_always_inline void smart_str_appendc_ex(smart_str *dest, char ch, zend_bool persistent) {
84 size_t new_len = smart_str_alloc(dest, 1, persistent);
85 ZSTR_VAL(dest->s)[new_len - 1] = ch;
86 ZSTR_LEN(dest->s) = new_len;
87 }
88
smart_str_appendl_ex(smart_str * dest,const char * str,size_t len,zend_bool persistent)89 static zend_always_inline void smart_str_appendl_ex(smart_str *dest, const char *str, size_t len, zend_bool persistent) {
90 size_t new_len = smart_str_alloc(dest, len, persistent);
91 memcpy(ZSTR_VAL(dest->s) + ZSTR_LEN(dest->s), str, len);
92 ZSTR_LEN(dest->s) = new_len;
93 }
94
smart_str_append_ex(smart_str * dest,const zend_string * src,zend_bool persistent)95 static zend_always_inline void smart_str_append_ex(smart_str *dest, const zend_string *src, zend_bool persistent) {
96 smart_str_appendl_ex(dest, ZSTR_VAL(src), ZSTR_LEN(src), persistent);
97 }
98
smart_str_append_smart_str_ex(smart_str * dest,const smart_str * src,zend_bool persistent)99 static zend_always_inline void smart_str_append_smart_str_ex(smart_str *dest, const smart_str *src, zend_bool persistent) {
100 if (src->s && ZSTR_LEN(src->s)) {
101 smart_str_append_ex(dest, src->s, persistent);
102 }
103 }
104
smart_str_append_long_ex(smart_str * dest,zend_long num,zend_bool persistent)105 static zend_always_inline void smart_str_append_long_ex(smart_str *dest, zend_long num, zend_bool persistent) {
106 char buf[32];
107 char *result = zend_print_long_to_buf(buf + sizeof(buf) - 1, num);
108 smart_str_appendl_ex(dest, result, buf + sizeof(buf) - 1 - result, persistent);
109 }
110
smart_str_append_unsigned_ex(smart_str * dest,zend_ulong num,zend_bool persistent)111 static zend_always_inline void smart_str_append_unsigned_ex(smart_str *dest, zend_ulong num, zend_bool persistent) {
112 char buf[32];
113 char *result = zend_print_ulong_to_buf(buf + sizeof(buf) - 1, num);
114 smart_str_appendl_ex(dest, result, buf + sizeof(buf) - 1 - result, persistent);
115 }
116
smart_str_setl(smart_str * dest,const char * src,size_t len)117 static zend_always_inline void smart_str_setl(smart_str *dest, const char *src, size_t len) {
118 smart_str_free(dest);
119 smart_str_appendl(dest, src, len);
120 }
121
122 #endif
123
