1 : /*
2 : +----------------------------------------------------------------------+
3 : | PHP Version 5 |
4 : +----------------------------------------------------------------------+
5 : | Copyright (c) 1997-2007 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 : /* $Id: php_smart_str.h,v 1.30.2.3.2.1 2007/01/01 09:36:08 sebastian Exp $ */
20 :
21 : #ifndef PHP_SMART_STR_H
22 : #define PHP_SMART_STR_H
23 :
24 : #include "php_smart_str_public.h"
25 :
26 : #include <stdlib.h>
27 : #ifndef SMART_STR_USE_REALLOC
28 : #include <zend.h>
29 : #endif
30 :
31 : #define smart_str_0(x) do { \
32 : if ((x)->c) { \
33 : (x)->c[(x)->len] = '\0'; \
34 : } \
35 : } while (0)
36 :
37 : #ifndef SMART_STR_PREALLOC
38 : #define SMART_STR_PREALLOC 128
39 : #endif
40 :
41 : #ifndef SMART_STR_START_SIZE
42 : #define SMART_STR_START_SIZE 78
43 : #endif
44 :
45 : #ifdef SMART_STR_USE_REALLOC
46 : #define SMART_STR_REALLOC(a,b,c) realloc((a),(b))
47 : #else
48 : #define SMART_STR_REALLOC(a,b,c) perealloc((a),(b),(c))
49 : #endif
50 :
51 : #define SMART_STR_DO_REALLOC(d, what) \
52 : (d)->c = SMART_STR_REALLOC((d)->c, (d)->a + 1, (what))
53 :
54 : #define smart_str_alloc4(d, n, what, newlen) do { \
55 : if (!(d)->c) { \
56 : (d)->len = 0; \
57 : newlen = (n); \
58 : (d)->a = newlen < SMART_STR_START_SIZE \
59 : ? SMART_STR_START_SIZE \
60 : : newlen + SMART_STR_PREALLOC; \
61 : SMART_STR_DO_REALLOC(d, what); \
62 : } else { \
63 : newlen = (d)->len + (n); \
64 : if (newlen >= (d)->a) { \
65 : (d)->a = newlen + SMART_STR_PREALLOC; \
66 : SMART_STR_DO_REALLOC(d, what); \
67 : } \
68 : } \
69 : } while (0)
70 :
71 : #define smart_str_alloc(d, n, what) \
72 : smart_str_alloc4((d), (n), (what), newlen)
73 :
74 : /* wrapper */
75 :
76 : #define smart_str_appends_ex(dest, src, what) \
77 : smart_str_appendl_ex((dest), (src), strlen(src), (what))
78 : #define smart_str_appends(dest, src) \
79 : smart_str_appendl((dest), (src), strlen(src))
80 :
81 : #define smart_str_appendc(dest, c) \
82 : smart_str_appendc_ex((dest), (c), 0)
83 : #define smart_str_free(s) \
84 : smart_str_free_ex((s), 0)
85 : #define smart_str_appendl(dest, src, len) \
86 : smart_str_appendl_ex((dest), (src), (len), 0)
87 : #define smart_str_append(dest, src) \
88 : smart_str_append_ex((dest), (src), 0)
89 : #define smart_str_append_long(dest, val) \
90 : smart_str_append_long_ex((dest), (val), 0)
91 : #define smart_str_append_off_t(dest, val) \
92 : smart_str_append_off_t_ex((dest), (val), 0)
93 : #define smart_str_append_unsigned(dest, val) \
94 : smart_str_append_unsigned_ex((dest), (val), 0)
95 :
96 : #define smart_str_appendc_ex(dest, ch, what) do { \
97 : register size_t __nl; \
98 : smart_str_alloc4((dest), 1, (what), __nl); \
99 : (dest)->len = __nl; \
100 : ((unsigned char *) (dest)->c)[(dest)->len - 1] = (ch); \
101 : } while (0)
102 :
103 : #define smart_str_free_ex(s, what) do { \
104 : smart_str *__s = (smart_str *) (s); \
105 : if (__s->c) { \
106 : pefree(__s->c, what); \
107 : __s->c = NULL; \
108 : } \
109 : __s->a = __s->len = 0; \
110 : } while (0)
111 :
112 : #define smart_str_appendl_ex(dest, src, nlen, what) do { \
113 : register size_t __nl; \
114 : smart_str *__dest = (smart_str *) (dest); \
115 : \
116 : smart_str_alloc4(__dest, (nlen), (what), __nl); \
117 : memcpy(__dest->c + __dest->len, (src), (nlen)); \
118 : __dest->len = __nl; \
119 : } while (0)
120 :
121 : /* input: buf points to the END of the buffer */
122 : #define smart_str_print_unsigned4(buf, num, vartype, result) do { \
123 : char *__p = (buf); \
124 : vartype __num = (num); \
125 : *__p = '\0'; \
126 : do { \
127 : *--__p = (char) (__num % 10) + '0'; \
128 : __num /= 10; \
129 : } while (__num > 0); \
130 : result = __p; \
131 : } while (0)
132 :
133 : /* buf points to the END of the buffer */
134 : #define smart_str_print_long4(buf, num, vartype, result) do { \
135 : if (num < 0) { \
136 : /* this might cause problems when dealing with LONG_MIN \
137 : and machines which don't support long long. Works \
138 : flawlessly on 32bit x86 */ \
139 : smart_str_print_unsigned4((buf), -(num), vartype, (result)); \
140 : *--(result) = '-'; \
141 : } else { \
142 : smart_str_print_unsigned4((buf), (num), vartype, (result)); \
143 : } \
144 : } while (0)
145 :
146 : /*
147 : * these could be replaced using a braced-group inside an expression
148 : * for GCC compatible compilers, e.g.
149 : *
150 : * #define f(..) ({char *r;..;__r;})
151 : */
152 :
153 10 : static inline char *smart_str_print_long(char *buf, long num) {
154 : char *r;
155 10 : smart_str_print_long4(buf, num, unsigned long, r);
156 10 : return r;
157 : }
158 :
159 0 : static inline char *smart_str_print_unsigned(char *buf, long num) {
160 : char *r;
161 0 : smart_str_print_unsigned4(buf, num, unsigned long, r);
162 0 : return r;
163 : }
164 :
165 : #define smart_str_append_generic_ex(dest, num, type, vartype, func) do { \
166 : char __b[32]; \
167 : char *__t; \
168 : smart_str_print##func##4 (__b + sizeof(__b) - 1, (num), vartype, __t); \
169 : smart_str_appendl_ex((dest), __t, __b + sizeof(__b) - 1 - __t, (type)); \
170 : } while (0)
171 :
172 : #define smart_str_append_unsigned_ex(dest, num, type) \
173 : smart_str_append_generic_ex((dest), (num), (type), unsigned long, _unsigned)
174 :
175 : #define smart_str_append_long_ex(dest, num, type) \
176 : smart_str_append_generic_ex((dest), (num), (type), unsigned long, _long)
177 :
178 : #define smart_str_append_off_t_ex(dest, num, type) \
179 : smart_str_append_generic_ex((dest), (num), (type), off_t, _long)
180 :
181 : #define smart_str_append_ex(dest, src, what) \
182 : smart_str_appendl_ex((dest), ((smart_str *)(src))->c, \
183 : ((smart_str *)(src))->len, (what));
184 :
185 :
186 : #define smart_str_setl(dest, src, nlen) do { \
187 : (dest)->len = (nlen); \
188 : (dest)->a = (nlen) + 1; \
189 : (dest)->c = (char *) (src); \
190 : } while (0)
191 :
192 : #define smart_str_sets(dest, src) \
193 : smart_str_setl((dest), (src), strlen(src));
194 :
195 : #endif
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