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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> | 9 #include <vector> |
| 10 | 10 |
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| 22 // large enough to accommodate the formatted string without truncation, they | 22 // large enough to accommodate the formatted string without truncation, they |
| 23 // 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 |
| 24 // (vsnprintf, and vswprintf on Windows), or -1 (vswprintf on POSIX platforms). | 24 // (vsnprintf, and vswprintf on Windows), or -1 (vswprintf on POSIX platforms). |
| 25 inline int vsnprintfT(char* buffer, | 25 inline int vsnprintfT(char* buffer, |
| 26 size_t buf_size, | 26 size_t buf_size, |
| 27 const char* format, | 27 const char* format, |
| 28 va_list argptr) { | 28 va_list argptr) { |
| 29 return base::vsnprintf(buffer, buf_size, format, argptr); | 29 return base::vsnprintf(buffer, buf_size, format, argptr); |
| 30 } | 30 } |
| 31 | 31 |
| 32 #if defined(OS_WIN) | 32 /*#if defined(OS_WIN) |
| 33 inline int vsnprintfT(wchar_t* buffer, | 33 inline int vsnprintfT(wchar_t* buffer, |
| 34 size_t buf_size, | 34 size_t buf_size, |
| 35 const wchar_t* format, | 35 const wchar_t* format, |
| 36 va_list argptr) { | 36 va_list argptr) { |
| 37 return base::vswprintf(buffer, buf_size, format, argptr); | 37 return base::vswprintf(buffer, buf_size, format, argptr); |
| 38 } | 38 } |
| 39 #endif | 39 #endif*/ |
| 40 | 40 |
| 41 // Templatized backend for StringPrintF/StringAppendF. This does not finalize | 41 // Templatized backend for StringPrintF/StringAppendF. This does not finalize |
| 42 // the va_list, the caller is expected to do that. | 42 // the va_list, the caller is expected to do that. |
| 43 template <class StringType> | 43 template <class StringType> |
| 44 static void StringAppendVT(StringType* dst, | 44 static void StringAppendVT(StringType* dst, |
| 45 const typename StringType::value_type* format, | 45 const typename StringType::value_type* format, |
| 46 va_list ap) { | 46 va_list ap) { |
| 47 // First try with a small fixed size buffer. | 47 // First try with a small fixed size buffer. |
| 48 // This buffer size should be kept in sync with StringUtilTest.GrowBoundary | 48 // This buffer size should be kept in sync with StringUtilTest.GrowBoundary |
| 49 // and StringUtilTest.StringPrintfBounds. | 49 // and StringUtilTest.StringPrintfBounds. |
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| 112 | 112 |
| 113 std::string StringPrintf(const char* format, ...) { | 113 std::string StringPrintf(const char* format, ...) { |
| 114 va_list ap; | 114 va_list ap; |
| 115 va_start(ap, format); | 115 va_start(ap, format); |
| 116 std::string result; | 116 std::string result; |
| 117 StringAppendV(&result, format, ap); | 117 StringAppendV(&result, format, ap); |
| 118 va_end(ap); | 118 va_end(ap); |
| 119 return result; | 119 return result; |
| 120 } | 120 } |
| 121 | 121 |
| 122 #if defined(OS_WIN) | 122 /*#if defined(OS_WIN) |
| 123 std::wstring StringPrintf(const wchar_t* format, ...) { | 123 std::wstring StringPrintf(const wchar_t* format, ...) { |
| 124 va_list ap; | 124 va_list ap; |
| 125 va_start(ap, format); | 125 va_start(ap, format); |
| 126 std::wstring result; | 126 std::wstring result; |
| 127 StringAppendV(&result, format, ap); | 127 StringAppendV(&result, format, ap); |
| 128 va_end(ap); | 128 va_end(ap); |
| 129 return result; | 129 return result; |
| 130 } | 130 } |
| 131 #endif | 131 #endif*/ |
| 132 | 132 |
| 133 std::string StringPrintV(const char* format, va_list ap) { | 133 std::string StringPrintV(const char* format, va_list ap) { |
| 134 std::string result; | 134 std::string result; |
| 135 StringAppendV(&result, format, ap); | 135 StringAppendV(&result, format, ap); |
| 136 return result; | 136 return result; |
| 137 } | 137 } |
| 138 | 138 |
| 139 const std::string& SStringPrintf(std::string* dst, const char* format, ...) { | 139 const std::string& SStringPrintf(std::string* dst, const char* format, ...) { |
| 140 va_list ap; | 140 va_list ap; |
| 141 va_start(ap, format); | 141 va_start(ap, format); |
| 142 dst->clear(); | 142 dst->clear(); |
| 143 StringAppendV(dst, format, ap); | 143 StringAppendV(dst, format, ap); |
| 144 va_end(ap); | 144 va_end(ap); |
| 145 return *dst; | 145 return *dst; |
| 146 } | 146 } |
| 147 | 147 |
| 148 #if defined(OS_WIN) | 148 /*#if defined(OS_WIN) |
| 149 const std::wstring& SStringPrintf(std::wstring* dst, | 149 const std::wstring& SStringPrintf(std::wstring* dst, |
| 150 const wchar_t* format, ...) { | 150 const wchar_t* format, ...) { |
| 151 va_list ap; | 151 va_list ap; |
| 152 va_start(ap, format); | 152 va_start(ap, format); |
| 153 dst->clear(); | 153 dst->clear(); |
| 154 StringAppendV(dst, format, ap); | 154 StringAppendV(dst, format, ap); |
| 155 va_end(ap); | 155 va_end(ap); |
| 156 return *dst; | 156 return *dst; |
| 157 } | 157 } |
| 158 #endif | 158 #endif*/ |
| 159 | 159 |
| 160 void StringAppendF(std::string* dst, const char* format, ...) { | 160 void StringAppendF(std::string* dst, const char* format, ...) { |
| 161 va_list ap; | 161 va_list ap; |
| 162 va_start(ap, format); | 162 va_start(ap, format); |
| 163 StringAppendV(dst, format, ap); | 163 StringAppendV(dst, format, ap); |
| 164 va_end(ap); | 164 va_end(ap); |
| 165 } | 165 } |
| 166 | 166 |
| 167 #if defined(OS_WIN) | 167 /*#if defined(OS_WIN) |
| 168 void StringAppendF(std::wstring* dst, const wchar_t* format, ...) { | 168 void StringAppendF(std::wstring* dst, const wchar_t* format, ...) { |
| 169 va_list ap; | 169 va_list ap; |
| 170 va_start(ap, format); | 170 va_start(ap, format); |
| 171 StringAppendV(dst, format, ap); | 171 StringAppendV(dst, format, ap); |
| 172 va_end(ap); | 172 va_end(ap); |
| 173 } | 173 } |
| 174 #endif | 174 #endif*/ |
| 175 | 175 |
| 176 void StringAppendV(std::string* dst, const char* format, va_list ap) { | 176 void StringAppendV(std::string* dst, const char* format, va_list ap) { |
| 177 StringAppendVT(dst, format, ap); | 177 StringAppendVT(dst, format, ap); |
| 178 } | 178 } |
| 179 | 179 |
| 180 #if defined(OS_WIN) | 180 /*#if defined(OS_WIN) |
| 181 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) { |
| 182 StringAppendVT(dst, format, ap); | 182 StringAppendVT(dst, format, ap); |
| 183 } | 183 } |
| 184 #endif | 184 #endif*/ |
| 185 | 185 |
| 186 } // namespace base | 186 } // namespace base |
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