| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_BASE_STRINGS_H |
| #define ANDROID_BASE_STRINGS_H |
| |
| #include <sstream> |
| #include <string> |
| #include <vector> |
| |
| namespace android { |
| namespace base { |
| |
| // Splits a string into a vector of strings. |
| // |
| // The string is split at each occurrence of a character in delimiters. |
| // |
| // The empty string is not a valid delimiter list. |
| std::vector<std::string> Split(const std::string& s, |
| const std::string& delimiters); |
| |
| // Trims whitespace off both ends of the given string. |
| std::string Trim(const std::string& s); |
| |
| // Joins a container of things into a single string, using the given separator. |
| template <typename ContainerT, typename SeparatorT> |
| std::string Join(const ContainerT& things, SeparatorT separator) { |
| if (things.empty()) { |
| return ""; |
| } |
| |
| std::ostringstream result; |
| result << *things.begin(); |
| for (auto it = std::next(things.begin()); it != things.end(); ++it) { |
| result << separator << *it; |
| } |
| return result.str(); |
| } |
| |
| // We instantiate the common cases in strings.cpp. |
| extern template std::string Join(const std::vector<std::string>&, char); |
| extern template std::string Join(const std::vector<const char*>&, char); |
| extern template std::string Join(const std::vector<std::string>&, const std::string&); |
| extern template std::string Join(const std::vector<const char*>&, const std::string&); |
| |
| // Tests whether 's' starts with 'prefix'. |
| bool StartsWith(const std::string& s, const char* prefix); |
| bool StartsWithIgnoreCase(const std::string& s, const char* prefix); |
| |
| // Tests whether 's' ends with 'suffix'. |
| bool EndsWith(const std::string& s, const char* suffix); |
| bool EndsWithIgnoreCase(const std::string& s, const char* suffix); |
| |
| // Tests whether 'lhs' equals 'rhs', ignoring case. |
| bool EqualsIgnoreCase(const std::string& lhs, const std::string& rhs); |
| |
| } // namespace base |
| } // namespace android |
| |
| #endif // ANDROID_BASE_STRINGS_H |