Michael Fabian 'Xaymar' Dirks
74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
/// AUTOGENERATED COPYRIGHT HEADER START
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// Copyright (C) 2017-2024 Michael Fabian 'Xaymar' Dirks <info@xaymar.com>
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// AUTOGENERATED COPYRIGHT HEADER END
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#pragma once
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#include <cinttypes>
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#include <filesystem>
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#include <fstream>
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#include <iostream>
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#include <istream>
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#include <memory>
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#include <string>
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#include <utility>
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#include "error.hpp"
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// ToDo:
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// - Figure out a way to let the lexer output line and character information?
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namespace blitz {
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struct token {
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std::pair<uint64_t, uint64_t> location;
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std::string text;
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enum class variant : uint64_t {
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UNKNOWN, // We have absolutely no fucking clue.
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ENDOFFILE, // End of the file.
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NEWLINE, // New Line.
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SEPARATOR, // Command Separator.
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CONTROL, // All kinds of control signals
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SYMBOL, // All kinds of symbols.
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COMMENT, // ; Whatever
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TEXT, // HelloWorld
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STRING, // "HelloWorld"
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INTEGER, // 1, 1% (without the %)
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REAL, // 1.0, 1# (without the #)
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} type;
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std::string to_string();
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bool operator==(blitz::token::variant rhs);
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bool operator==(std::string const& rhs);
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};
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class lexer {
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std::filesystem::path _file;
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std::ifstream _stream;
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// Current location in the file.
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std::pair<uint64_t, uint64_t> _location;
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blitz::token _current;
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blitz::token _override;
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public:
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~lexer();
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lexer(std::filesystem::path file);
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/** Retrieve the current token information.
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*/
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blitz::token current();
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/** Retrieve the next token in the given stream.
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*
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* This will replace the current token.
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*/
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blitz::token next();
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/** Peek at the next token in the given stream.
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*
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* The current token will remain in-tact.
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*/
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blitz::token peek();
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};
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} // namespace blitz
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