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Merge pull request #743 from lioncash/view
logging: Use std::string_view where applicable
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commit
8afc21f175
@ -3,19 +3,20 @@
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <array>
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#include <atomic>
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#include <chrono>
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#include <climits>
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#include <condition_variable>
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#include <memory>
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#include <mutex>
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#include <thread>
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#include <vector>
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#ifdef _WIN32
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#include <share.h> // For _SH_DENYWR
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#else
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#define _SH_DENYWR 0
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#endif
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#include "common/assert.h"
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#include "common/common_funcs.h" // snprintf compatibility define
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#include "common/logging/backend.h"
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#include "common/logging/log.h"
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#include "common/logging/text_formatter.h"
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@ -48,11 +49,11 @@ public:
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backends.push_back(std::move(backend));
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}
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void RemoveBackend(const std::string& backend_name) {
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void RemoveBackend(std::string_view backend_name) {
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std::lock_guard<std::mutex> lock(writing_mutex);
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auto it = std::remove_if(backends.begin(), backends.end(), [&backend_name](const auto& i) {
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return !strcmp(i->GetName(), backend_name.c_str());
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});
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const auto it =
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std::remove_if(backends.begin(), backends.end(),
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[&backend_name](const auto& i) { return backend_name == i->GetName(); });
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backends.erase(it, backends.end());
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}
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@ -64,10 +65,10 @@ public:
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filter = f;
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}
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Backend* GetBackend(const std::string& backend_name) {
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auto it = std::find_if(backends.begin(), backends.end(), [&backend_name](const auto& i) {
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return !strcmp(i->GetName(), backend_name.c_str());
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});
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Backend* GetBackend(std::string_view backend_name) {
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const auto it =
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std::find_if(backends.begin(), backends.end(),
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[&backend_name](const auto& i) { return backend_name == i->GetName(); });
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if (it == backends.end())
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return nullptr;
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return it->get();
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@ -265,11 +266,11 @@ void AddBackend(std::unique_ptr<Backend> backend) {
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Impl::Instance().AddBackend(std::move(backend));
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}
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void RemoveBackend(const std::string& backend_name) {
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void RemoveBackend(std::string_view backend_name) {
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Impl::Instance().RemoveBackend(backend_name);
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}
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Backend* GetBackend(const std::string& backend_name) {
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Backend* GetBackend(std::string_view backend_name) {
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return Impl::Instance().GetBackend(backend_name);
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}
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@ -4,10 +4,9 @@
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#pragma once
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#include <chrono>
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#include <cstdarg>
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#include <memory>
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#include <string>
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#include <utility>
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#include <string_view>
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#include "common/file_util.h"
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#include "common/logging/filter.h"
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#include "common/logging/log.h"
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@ -106,9 +105,9 @@ private:
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void AddBackend(std::unique_ptr<Backend> backend);
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void RemoveBackend(const std::string& backend_name);
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void RemoveBackend(std::string_view backend_name);
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Backend* GetBackend(const std::string& backend_name);
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Backend* GetBackend(std::string_view backend_name);
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/**
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* Returns the name of the passed log class as a C-string. Subclasses are separated by periods
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@ -8,39 +8,9 @@
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#include "common/string_util.h"
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namespace Log {
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Filter::Filter(Level default_level) {
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ResetAll(default_level);
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}
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void Filter::ResetAll(Level level) {
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class_levels.fill(level);
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}
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void Filter::SetClassLevel(Class log_class, Level level) {
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class_levels[static_cast<size_t>(log_class)] = level;
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}
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void Filter::ParseFilterString(const std::string& filter_str) {
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auto clause_begin = filter_str.cbegin();
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while (clause_begin != filter_str.cend()) {
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auto clause_end = std::find(clause_begin, filter_str.cend(), ' ');
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// If clause isn't empty
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if (clause_end != clause_begin) {
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ParseFilterRule(clause_begin, clause_end);
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}
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if (clause_end != filter_str.cend()) {
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// Skip over the whitespace
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++clause_end;
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}
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clause_begin = clause_end;
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}
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}
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namespace {
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template <typename It>
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static Level GetLevelByName(const It begin, const It end) {
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Level GetLevelByName(const It begin, const It end) {
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for (u8 i = 0; i < static_cast<u8>(Level::Count); ++i) {
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const char* level_name = GetLevelName(static_cast<Level>(i));
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if (Common::ComparePartialString(begin, end, level_name)) {
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@ -51,7 +21,7 @@ static Level GetLevelByName(const It begin, const It end) {
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}
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template <typename It>
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static Class GetClassByName(const It begin, const It end) {
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Class GetClassByName(const It begin, const It end) {
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for (ClassType i = 0; i < static_cast<ClassType>(Class::Count); ++i) {
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const char* level_name = GetLogClassName(static_cast<Class>(i));
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if (Common::ComparePartialString(begin, end, level_name)) {
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@ -61,8 +31,8 @@ static Class GetClassByName(const It begin, const It end) {
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return Class::Count;
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}
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bool Filter::ParseFilterRule(const std::string::const_iterator begin,
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const std::string::const_iterator end) {
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template <typename Iterator>
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bool ParseFilterRule(Filter& instance, Iterator begin, Iterator end) {
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auto level_separator = std::find(begin, end, ':');
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if (level_separator == end) {
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LOG_ERROR(Log, "Invalid log filter. Must specify a log level after `:`: {}",
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@ -77,7 +47,7 @@ bool Filter::ParseFilterRule(const std::string::const_iterator begin,
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}
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if (Common::ComparePartialString(begin, level_separator, "*")) {
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ResetAll(level);
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instance.ResetAll(level);
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return true;
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}
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@ -87,9 +57,40 @@ bool Filter::ParseFilterRule(const std::string::const_iterator begin,
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return false;
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}
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SetClassLevel(log_class, level);
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instance.SetClassLevel(log_class, level);
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return true;
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}
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} // Anonymous namespace
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Filter::Filter(Level default_level) {
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ResetAll(default_level);
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}
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void Filter::ResetAll(Level level) {
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class_levels.fill(level);
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}
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void Filter::SetClassLevel(Class log_class, Level level) {
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class_levels[static_cast<size_t>(log_class)] = level;
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}
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void Filter::ParseFilterString(std::string_view filter_view) {
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auto clause_begin = filter_view.cbegin();
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while (clause_begin != filter_view.cend()) {
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auto clause_end = std::find(clause_begin, filter_view.cend(), ' ');
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// If clause isn't empty
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if (clause_end != clause_begin) {
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ParseFilterRule(*this, clause_begin, clause_end);
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}
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if (clause_end != filter_view.cend()) {
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// Skip over the whitespace
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++clause_end;
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}
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clause_begin = clause_end;
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}
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}
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bool Filter::CheckMessage(Class log_class, Level level) const {
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return static_cast<u8>(level) >= static_cast<u8>(class_levels[static_cast<size_t>(log_class)]);
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@ -6,7 +6,7 @@
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#include <array>
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#include <cstddef>
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#include <string>
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#include <string_view>
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#include "common/logging/log.h"
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namespace Log {
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@ -40,9 +40,7 @@ public:
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* - `Service:Info` -- Sets the level of Service to Info.
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* - `Service.FS:Trace` -- Sets the level of the Service.FS class to Trace.
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*/
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void ParseFilterString(const std::string& filter_str);
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bool ParseFilterRule(const std::string::const_iterator start,
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const std::string::const_iterator end);
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void ParseFilterString(std::string_view filter_view);
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/// Matches class/level combination against the filter, returning true if it passed.
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bool CheckMessage(Class log_class, Level level) const;
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