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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "base/strings/stringprintf.h" | 5 #include "base/strings/stringprintf.h" |
6 | 6 |
7 #include <errno.h> | 7 #include <errno.h> |
8 | 8 |
| 9 #include <vector> |
| 10 |
9 #include "base/scoped_clear_errno.h" | 11 #include "base/scoped_clear_errno.h" |
10 #include "base/strings/string_util.h" | 12 #include "base/strings/string_util.h" |
11 #include "base/strings/utf_string_conversions.h" | 13 #include "base/strings/utf_string_conversions.h" |
12 | 14 |
13 namespace base { | 15 namespace base { |
14 | 16 |
15 namespace { | 17 namespace { |
16 | 18 |
17 // Overloaded wrappers around vsnprintf and vswprintf. The buf_size parameter | 19 // Overloaded wrappers around vsnprintf and vswprintf. The buf_size parameter |
18 // is the size of the buffer. These return the number of characters in the | 20 // is the size of the buffer. These return the number of characters in the |
19 // formatted string excluding the NUL terminator. If the buffer is not | 21 // formatted string excluding the NUL terminator. If the buffer is not |
20 // large enough to accommodate the formatted string without truncation, they | 22 // large enough to accommodate the formatted string without truncation, they |
21 // return the number of characters that would be in the fully-formatted string | 23 // return the number of characters that would be in the fully-formatted string |
22 // (vsnprintf, and vswprintf on Windows), or -1 (vswprintf on POSIX platforms). | 24 // (vsnprintf, and vswprintf on Windows), or -1 (vswprintf on POSIX platforms). |
23 inline int vsnprintfT(char* buffer, | 25 inline int vsnprintfT(char* buffer, |
24 size_t buf_size, | 26 size_t buf_size, |
25 const char* format, | 27 const char* format, |
26 va_list argptr) { | 28 va_list argptr) { |
27 return base::vsnprintf(buffer, buf_size, format, argptr); | 29 return base::vsnprintf(buffer, buf_size, format, argptr); |
28 } | 30 } |
29 | 31 |
30 #if !defined(OS_ANDROID) | 32 #if defined(OS_WIN) |
31 inline int vsnprintfT(wchar_t* buffer, | 33 inline int vsnprintfT(wchar_t* buffer, |
32 size_t buf_size, | 34 size_t buf_size, |
33 const wchar_t* format, | 35 const wchar_t* format, |
34 va_list argptr) { | 36 va_list argptr) { |
35 return base::vswprintf(buffer, buf_size, format, argptr); | 37 return base::vswprintf(buffer, buf_size, format, argptr); |
36 } | 38 } |
37 #endif | 39 #endif |
38 | 40 |
39 // Templatized backend for StringPrintF/StringAppendF. This does not finalize | 41 // Templatized backend for StringPrintF/StringAppendF. This does not finalize |
40 // the va_list, the caller is expected to do that. | 42 // the va_list, the caller is expected to do that. |
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110 | 112 |
111 std::string StringPrintf(const char* format, ...) { | 113 std::string StringPrintf(const char* format, ...) { |
112 va_list ap; | 114 va_list ap; |
113 va_start(ap, format); | 115 va_start(ap, format); |
114 std::string result; | 116 std::string result; |
115 StringAppendV(&result, format, ap); | 117 StringAppendV(&result, format, ap); |
116 va_end(ap); | 118 va_end(ap); |
117 return result; | 119 return result; |
118 } | 120 } |
119 | 121 |
120 #if !defined(OS_ANDROID) | 122 #if defined(OS_WIN) |
121 std::wstring StringPrintf(const wchar_t* format, ...) { | 123 std::wstring StringPrintf(const wchar_t* format, ...) { |
122 va_list ap; | 124 va_list ap; |
123 va_start(ap, format); | 125 va_start(ap, format); |
124 std::wstring result; | 126 std::wstring result; |
125 StringAppendV(&result, format, ap); | 127 StringAppendV(&result, format, ap); |
126 va_end(ap); | 128 va_end(ap); |
127 return result; | 129 return result; |
128 } | 130 } |
129 #endif | 131 #endif |
130 | 132 |
131 std::string StringPrintV(const char* format, va_list ap) { | 133 std::string StringPrintV(const char* format, va_list ap) { |
132 std::string result; | 134 std::string result; |
133 StringAppendV(&result, format, ap); | 135 StringAppendV(&result, format, ap); |
134 return result; | 136 return result; |
135 } | 137 } |
136 | 138 |
137 const std::string& SStringPrintf(std::string* dst, const char* format, ...) { | 139 const std::string& SStringPrintf(std::string* dst, const char* format, ...) { |
138 va_list ap; | 140 va_list ap; |
139 va_start(ap, format); | 141 va_start(ap, format); |
140 dst->clear(); | 142 dst->clear(); |
141 StringAppendV(dst, format, ap); | 143 StringAppendV(dst, format, ap); |
142 va_end(ap); | 144 va_end(ap); |
143 return *dst; | 145 return *dst; |
144 } | 146 } |
145 | 147 |
146 #if !defined(OS_ANDROID) | 148 #if defined(OS_WIN) |
147 const std::wstring& SStringPrintf(std::wstring* dst, | 149 const std::wstring& SStringPrintf(std::wstring* dst, |
148 const wchar_t* format, ...) { | 150 const wchar_t* format, ...) { |
149 va_list ap; | 151 va_list ap; |
150 va_start(ap, format); | 152 va_start(ap, format); |
151 dst->clear(); | 153 dst->clear(); |
152 StringAppendV(dst, format, ap); | 154 StringAppendV(dst, format, ap); |
153 va_end(ap); | 155 va_end(ap); |
154 return *dst; | 156 return *dst; |
155 } | 157 } |
156 #endif | 158 #endif |
157 | 159 |
158 void StringAppendF(std::string* dst, const char* format, ...) { | 160 void StringAppendF(std::string* dst, const char* format, ...) { |
159 va_list ap; | 161 va_list ap; |
160 va_start(ap, format); | 162 va_start(ap, format); |
161 StringAppendV(dst, format, ap); | 163 StringAppendV(dst, format, ap); |
162 va_end(ap); | 164 va_end(ap); |
163 } | 165 } |
164 | 166 |
165 #if !defined(OS_ANDROID) | 167 #if defined(OS_WIN) |
166 void StringAppendF(std::wstring* dst, const wchar_t* format, ...) { | 168 void StringAppendF(std::wstring* dst, const wchar_t* format, ...) { |
167 va_list ap; | 169 va_list ap; |
168 va_start(ap, format); | 170 va_start(ap, format); |
169 StringAppendV(dst, format, ap); | 171 StringAppendV(dst, format, ap); |
170 va_end(ap); | 172 va_end(ap); |
171 } | 173 } |
172 #endif | 174 #endif |
173 | 175 |
174 void StringAppendV(std::string* dst, const char* format, va_list ap) { | 176 void StringAppendV(std::string* dst, const char* format, va_list ap) { |
175 StringAppendVT(dst, format, ap); | 177 StringAppendVT(dst, format, ap); |
176 } | 178 } |
177 | 179 |
178 #if !defined(OS_ANDROID) | 180 #if defined(OS_WIN) |
179 void StringAppendV(std::wstring* dst, const wchar_t* format, va_list ap) { | 181 void StringAppendV(std::wstring* dst, const wchar_t* format, va_list ap) { |
180 StringAppendVT(dst, format, ap); | 182 StringAppendVT(dst, format, ap); |
181 } | 183 } |
182 #endif | 184 #endif |
183 | 185 |
184 } // namespace base | 186 } // namespace base |
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