config_parser: Add common boolean parser
This more accurately parses systemd values instead of just comparing to
"false" or "true".
Change-Id: I0d70ef418075d555bf6f090fefa0b34332491ed0
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/src/config_parser.hpp b/src/config_parser.hpp
index abbf25c..75ef4a7 100644
--- a/src/config_parser.hpp
+++ b/src/config_parser.hpp
@@ -1,6 +1,7 @@
#pragma once
#include <filesystem>
+#include <optional>
#include <string>
#include <string_view>
#include <unordered_map>
@@ -13,6 +14,11 @@
namespace config
{
+/** @brief Compare in (case insensitive) vs expected (sensitive) */
+bool icaseeq(std::string_view in, std::string_view expected) noexcept;
+/** @brief Turns a systemd bool string into a c++ bool */
+std::optional<bool> parseBool(std::string_view in) noexcept;
+
struct string_hash : public std::hash<std::string_view>
{
using is_transparent = void;