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1 /*
2  * Copyright (C) 2006 Apple Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef WTF_StringExtras_h
27 #define WTF_StringExtras_h
28 
29 #include <stdarg.h>
30 #include <stdio.h>
31 
32 #if HAVE(STRINGS_H)
33 #include <strings.h>
34 #endif
35 
36 #if COMPILER(MSVC)
37 // FIXME: why a COMPILER check instead of OS? also, these should be HAVE checks
38 
snprintf(char * buffer,size_t count,const char * format,...)39 inline int snprintf(char* buffer, size_t count, const char* format, ...)
40 {
41     int result;
42     va_list args;
43     va_start(args, format);
44     result = _vsnprintf(buffer, count, format, args);
45     va_end(args);
46     return result;
47 }
48 
49 #if COMPILER(MSVC7) || OS(WINCE)
50 
vsnprintf(char * buffer,size_t count,const char * format,va_list args)51 inline int vsnprintf(char* buffer, size_t count, const char* format, va_list args)
52 {
53     return _vsnprintf(buffer, count, format, args);
54 }
55 
56 #endif
57 
58 #if OS(WINCE)
59 
strnicmp(const char * string1,const char * string2,size_t count)60 inline int strnicmp(const char* string1, const char* string2, size_t count)
61 {
62     return _strnicmp(string1, string2, count);
63 }
64 
stricmp(const char * string1,const char * string2)65 inline int stricmp(const char* string1, const char* string2)
66 {
67     return _stricmp(string1, string2);
68 }
69 
strdup(const char * strSource)70 inline char* strdup(const char* strSource)
71 {
72     return _strdup(strSource);
73 }
74 
75 #endif
76 
strncasecmp(const char * s1,const char * s2,size_t len)77 inline int strncasecmp(const char* s1, const char* s2, size_t len)
78 {
79     return _strnicmp(s1, s2, len);
80 }
81 
strcasecmp(const char * s1,const char * s2)82 inline int strcasecmp(const char* s1, const char* s2)
83 {
84     return _stricmp(s1, s2);
85 }
86 
87 #endif
88 
89 #if OS(WINDOWS) || OS(LINUX) || OS(SOLARIS)
90 // FIXME: should check HAVE_STRNSTR
91 
strnstr(const char * buffer,const char * target,size_t bufferLength)92 inline char* strnstr(const char* buffer, const char* target, size_t bufferLength)
93 {
94     size_t targetLength = strlen(target);
95     if (targetLength == 0)
96         return const_cast<char*>(buffer);
97     for (const char* start = buffer; *start && start + targetLength <= buffer + bufferLength; start++) {
98         if (*start == *target && strncmp(start + 1, target + 1, targetLength - 1) == 0)
99             return const_cast<char*>(start);
100     }
101     return 0;
102 }
103 
104 #endif
105 
106 #if COMPILER(RVCT) && __ARMCC_VERSION < 400000
107 
108 int strcasecmp(const char* s1, const char* s2);
109 int strncasecmp(const char* s1, const char* s2, size_t len);
110 
111 #endif
112 
113 #endif // WTF_StringExtras_h
114