Rework Grammar and Parser

Add proper headless binary construction:
	Includes basic validation

Add Error and Warning structs to Parser
Add FileNode pointer getter to Parser
Change all `char8_t*` and `const char8_t` to `const char*` in Parser
Add Parser move operators and Parser deconstructor
Add BufferHandler PIMPL object to Parser
Add UTF-8 file Warning to v2script
Add proper Grammar value retrieval
Add AbstractSyntaxTree for v2script data parser:
	Has compile-time embedded type information accessible at compile-time and runtime
	Has Tab-based print functionality

Fix wrong environment reference for headless construction in SConstruct
Add error retrieval
Add BasicCallbackOStreamBuffer for callback streaming
Add CallbackStreamBuffer for char
Add CallbackWStreamBuffer for wchar_t
Add BasicCallbackStream
Add CallbackStream for char
Add CallbackWStream for wchar_t
Add grammar for events and decisions
Add event_parse to Parser
Add decision_parse to Parser
Add .clang-format
Ignore dirty lexy module
Add CSV parser and grammar:
	Creates std::vector<csv::LineObject> for a list of lines

Add BasicParser and BasicBufferHandler to reduce code reduplication

1 files changed, 37 insertions, 0 deletions

diff --git a/include/openvic-dataloader/detail/BasicParser.hpp b/include/openvic-dataloader/detail/BasicParser.hpp
new file mode 100644
index 0000000..5493804
--- /dev/null
+++ b/include/openvic-dataloader/detail/BasicParser.hpp
@@ -0,0 +1,37 @@
+#pragma once
+
+#include <filesystem>
+#include <optional>
+#include <string_view>
+#include <vector>
+
+#include <openvic-dataloader/ParseError.hpp>
+#include <openvic-dataloader/ParseWarning.hpp>
+#include <openvic-dataloader/detail/Concepts.hpp>
+
+namespace ovdl::detail {
+	class BasicParser {
+	public:
+		BasicParser();
+
+		void set_error_log_to_null();
+		void set_error_log_to_stderr();
+		void set_error_log_to_stdout();
+		void set_error_log_to(std::basic_ostream<char>& stream);
+
+		bool has_error() const;
+		bool has_fatal_error() const;
+		bool has_warning() const;
+
+		const std::vector<ParseError>& get_errors() const;
+		const std::vector<ParseWarning>& get_warnings() const;
+
+	protected:
+		std::vector<ParseError> _errors;
+		std::vector<ParseWarning> _warnings;
+
+		std::reference_wrapper<std::ostream> _error_stream;
+		const char* _file_path;
+		bool _has_fatal_error = false;
+	};
+}
\ No newline at end of file