diff options
Diffstat (limited to 'gd/common/strings.cc')
| -rw-r--r-- | gd/common/strings.cc | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/gd/common/strings.cc b/gd/common/strings.cc deleted file mode 100644 index 13c5c059c..000000000 --- a/gd/common/strings.cc +++ /dev/null @@ -1,178 +0,0 @@ -/* - * Copyright 2020 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. - */ - -#include "common/strings.h" - -#include <charconv> -#include <cstdlib> -#include <functional> -#include <iomanip> -#include <iterator> -#include <sstream> -#include <system_error> - -namespace { - -struct IsSpace : std::unary_function<std::string::value_type, bool> { - bool operator()(std::string::value_type v) { - return isspace(static_cast<int>(v)); - } -}; - -struct IsHexDigit : std::unary_function<std::string::value_type, bool> { - bool operator()(std::string::value_type v) { - return isxdigit(static_cast<int>(v)); - } -}; - -} // namespace - -namespace bluetooth { -namespace common { - -std::string ToHexString(const std::vector<uint8_t>& value) { - return ToHexString(value.begin(), value.end()); -} - -bool IsValidHexString(const std::string& str) { - return std::find_if_not(str.begin(), str.end(), IsHexDigit{}) == str.end(); -} - -std::optional<std::vector<uint8_t>> FromHexString(const std::string& str) { - if (str.size() % 2 != 0) { - LOG_INFO("str size is not divisible by 2, size is %zu", str.size()); - return std::nullopt; - } - if (std::find_if_not(str.begin(), str.end(), IsHexDigit{}) != str.end()) { - LOG_INFO("value contains none hex digit"); - return std::nullopt; - } - std::vector<uint8_t> value; - value.reserve(str.size() / 2); - for (size_t i = 0; i < str.size(); i += 2) { - uint8_t v = 0; - auto ret = std::from_chars(str.c_str() + i, str.c_str() + i + 2, v, 16); - if (std::make_error_code(ret.ec)) { - LOG_INFO("failed to parse hex char at index %zu", i); - return std::nullopt; - } - value.push_back(v); - } - return value; -} - -std::string StringTrim(std::string str) { - str.erase(str.begin(), std::find_if_not(str.begin(), str.end(), IsSpace{})); - str.erase(std::find_if_not(str.rbegin(), str.rend(), IsSpace{}).base(), str.end()); - return str; -} - -std::vector<std::string> StringSplit(const std::string& str, const std::string& delim, size_t max_token) { - ASSERT_LOG(!delim.empty(), "delim cannot be empty"); - std::vector<std::string> tokens; - // Use std::string::find and std::string::substr to avoid copying str into a stringstream - std::string::size_type starting_index = 0; - auto index_of_delim = str.find(delim); - while ((max_token == 0 || tokens.size() < (max_token - 1)) && index_of_delim != std::string::npos) { - tokens.push_back(str.substr(starting_index, index_of_delim - starting_index)); - starting_index = index_of_delim + delim.size(); - index_of_delim = str.find(delim, starting_index); - } - // Append last item to the vector if there are anything left - if (starting_index < (str.size() + 1)) { - tokens.push_back(str.substr(starting_index)); - } - return tokens; -} - -std::string StringJoin(const std::vector<std::string>& strings, const std::string& delim) { - std::stringstream ss; - for (auto it = strings.begin(); it != strings.end(); it++) { - ss << *it; - if (std::next(it) != strings.end()) { - ss << delim; - } - } - return ss.str(); -} - -std::optional<int64_t> Int64FromString(const std::string& str) { - char* ptr = nullptr; - errno = 0; - int64_t value = std::strtoll(str.c_str(), &ptr, 10); - if (errno != 0) { - LOG_INFO("cannot parse string '%s' with error '%s'", str.c_str(), strerror(errno)); - return std::nullopt; - } - if (ptr == str.c_str()) { - LOG_INFO("string '%s' is empty or has wrong format", str.c_str()); - return std::nullopt; - } - if (ptr != (str.c_str() + str.size())) { - LOG_INFO("cannot parse whole string '%s'", str.c_str()); - return std::nullopt; - } - return value; -} - -std::string ToString(int64_t value) { - return std::to_string(value); -} - -std::optional<uint64_t> Uint64FromString(const std::string& str) { - if (str.find('-') != std::string::npos) { - LOG_INFO("string '%s' contains minus sign, this function is for unsigned", str.c_str()); - return std::nullopt; - } - char* ptr = nullptr; - errno = 0; - uint64_t value = std::strtoull(str.c_str(), &ptr, 10); - if (errno != 0) { - LOG_INFO("cannot parse string '%s' with error '%s'", str.c_str(), strerror(errno)); - return std::nullopt; - } - if (ptr == str.c_str()) { - LOG_INFO("string '%s' is empty or has wrong format", str.c_str()); - return std::nullopt; - } - if (ptr != (str.c_str() + str.size())) { - LOG_INFO("cannot parse whole string '%s'", str.c_str()); - return std::nullopt; - } - return value; -} - -std::string ToString(uint64_t value) { - return std::to_string(value); -} - -std::optional<bool> BoolFromString(const std::string& str) { - if (str == "true") { - return true; - } else if (str == "false") { - return false; - } else { - LOG_INFO("string '%s' is neither true nor false", str.c_str()); - return std::nullopt; - } -} - -std::string ToString(bool value) { - return value ? "true" : "false"; -} - -} // namespace common -} // namespace bluetooth
\ No newline at end of file |