diff options
Diffstat (limited to 'webrtc/rtc_base/string_utils.h')
-rw-r--r-- | webrtc/rtc_base/string_utils.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/webrtc/rtc_base/string_utils.h b/webrtc/rtc_base/string_utils.h new file mode 100644 index 0000000..23c55cb --- /dev/null +++ b/webrtc/rtc_base/string_utils.h @@ -0,0 +1,93 @@ +/* + * Copyright 2004 The WebRTC Project Authors. All rights reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef RTC_BASE_STRING_UTILS_H_ +#define RTC_BASE_STRING_UTILS_H_ + +#include <ctype.h> +#include <stdarg.h> +#include <stdio.h> +#include <string.h> + +#if defined(WEBRTC_WIN) +#include <malloc.h> +#include <wchar.h> +#include <windows.h> + +#endif // WEBRTC_WIN + +#if defined(WEBRTC_POSIX) +#include <stdlib.h> +#include <strings.h> +#endif // WEBRTC_POSIX + +#include <string> + +namespace rtc { + +const size_t SIZE_UNKNOWN = static_cast<size_t>(-1); + +// Safe version of strncpy that always nul-terminate. +size_t strcpyn(char* buffer, + size_t buflen, + const char* source, + size_t srclen = SIZE_UNKNOWN); + +/////////////////////////////////////////////////////////////////////////////// +// UTF helpers (Windows only) +/////////////////////////////////////////////////////////////////////////////// + +#if defined(WEBRTC_WIN) + +inline std::wstring ToUtf16(const char* utf8, size_t len) { + if (len == 0) + return std::wstring(); + int len16 = ::MultiByteToWideChar(CP_UTF8, 0, utf8, static_cast<int>(len), + nullptr, 0); + std::wstring ws(len16, 0); + ::MultiByteToWideChar(CP_UTF8, 0, utf8, static_cast<int>(len), &*ws.begin(), + len16); + return ws; +} + +inline std::wstring ToUtf16(const std::string& str) { + return ToUtf16(str.data(), str.length()); +} + +inline std::string ToUtf8(const wchar_t* wide, size_t len) { + if (len == 0) + return std::string(); + int len8 = ::WideCharToMultiByte(CP_UTF8, 0, wide, static_cast<int>(len), + nullptr, 0, nullptr, nullptr); + std::string ns(len8, 0); + ::WideCharToMultiByte(CP_UTF8, 0, wide, static_cast<int>(len), &*ns.begin(), + len8, nullptr, nullptr); + return ns; +} + +inline std::string ToUtf8(const wchar_t* wide) { + return ToUtf8(wide, wcslen(wide)); +} + +inline std::string ToUtf8(const std::wstring& wstr) { + return ToUtf8(wstr.data(), wstr.length()); +} + +#endif // WEBRTC_WIN + +// Remove leading and trailing whitespaces. +std::string string_trim(const std::string& s); + +// TODO(jonasolsson): replace with absl::Hex when that becomes available. +std::string ToHex(const int i); + +} // namespace rtc + +#endif // RTC_BASE_STRING_UTILS_H_ |