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https://gitlab.com/hashborgir/d2tweaks-rnd2k.git
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121 lines
3.1 KiB
C++
121 lines
3.1 KiB
C++
// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
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// Distributed under the MIT License (http://opensource.org/licenses/MIT)
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#pragma once
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#ifndef SPDLOG_HEADER_ONLY
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#include <spdlog/cfg/helpers.h>
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#endif
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#include <spdlog/spdlog.h>
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#include <spdlog/details/os.h>
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#include <spdlog/details/registry.h>
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#include <algorithm>
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#include <string>
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#include <utility>
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#include <sstream>
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namespace spdlog {
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namespace cfg {
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namespace helpers {
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// inplace convert to lowercase
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inline std::string &to_lower_(std::string &str)
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{
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std::transform(
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str.begin(), str.end(), str.begin(), [](char ch) { return static_cast<char>((ch >= 'A' && ch <= 'Z') ? ch + ('a' - 'A') : ch); });
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return str;
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}
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// inplace trim spaces
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inline std::string &trim_(std::string &str)
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{
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const char *spaces = " \n\r\t";
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str.erase(str.find_last_not_of(spaces) + 1);
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str.erase(0, str.find_first_not_of(spaces));
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return str;
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}
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// return (name,value) trimmed pair from given "name=value" string.
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// return empty string on missing parts
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// "key=val" => ("key", "val")
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// " key = val " => ("key", "val")
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// "key=" => ("key", "")
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// "val" => ("", "val")
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inline std::pair<std::string, std::string> extract_kv_(char sep, const std::string &str)
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{
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auto n = str.find(sep);
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std::string k, v;
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if (n == std::string::npos)
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{
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v = str;
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}
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else
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{
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k = str.substr(0, n);
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v = str.substr(n + 1);
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}
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return std::make_pair(trim_(k), trim_(v));
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}
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// return vector of key/value pairs from sequence of "K1=V1,K2=V2,.."
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// "a=AAA,b=BBB,c=CCC,.." => {("a","AAA"),("b","BBB"),("c", "CCC"),...}
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inline std::unordered_map<std::string, std::string> extract_key_vals_(const std::string &str)
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{
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std::string token;
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std::istringstream token_stream(str);
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std::unordered_map<std::string, std::string> rv{};
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while (std::getline(token_stream, token, ','))
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{
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if (token.empty())
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{
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continue;
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}
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auto kv = extract_kv_('=', token);
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rv[kv.first] = kv.second;
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}
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return rv;
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}
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SPDLOG_INLINE void load_levels(const std::string &input)
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{
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if (input.empty() || input.size() > 512)
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{
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return;
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}
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auto key_vals = extract_key_vals_(input);
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std::unordered_map<std::string, level::level_enum> levels;
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level::level_enum global_level = level::info;
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bool global_level_found = false;
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for (auto &name_level : key_vals)
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{
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auto &logger_name = name_level.first;
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auto level_name = to_lower_(name_level.second);
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auto level = level::from_str(level_name);
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// ignore unrecognized level names
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if (level == level::off && level_name != "off")
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{
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continue;
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}
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if (logger_name.empty()) // no logger name indicate global level
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{
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global_level_found = true;
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global_level = level;
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}
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else
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{
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levels[logger_name] = level;
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}
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}
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details::registry::instance().set_levels(std::move(levels), global_level_found ? &global_level : nullptr);
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}
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} // namespace helpers
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} // namespace cfg
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} // namespace spdlog
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