48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
#ifndef FURC_FRONT_LEXER_HPP
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#define FURC_FRONT_LEXER_HPP
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#include "furc/front/token.hpp"
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#include <cstddef>
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#include <deque>
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#include <string_view>
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namespace furc {
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class lexer {
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public:
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lexer(std::string_view filepath, std::string_view content)
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: m_filepath(filepath), m_content(content) {}
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~lexer() = default;
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lexer(lexer&&) noexcept = default;
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lexer& operator=(lexer&&) noexcept = default;
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lexer(const lexer&) = delete;
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lexer& operator=(const lexer&) = delete;
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public:
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token next_token();
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token peek_token(std::size_t offset = 0);
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private:
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token get_token();
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void next();
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constexpr char get(std::size_t offset = 0) const;
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void skip_spaces();
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constexpr token::location location() const;
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private:
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std::string_view m_filepath;
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std::string_view m_content;
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std::size_t m_cursor = 0;
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std::size_t m_row = 0;
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std::size_t m_lineStart = 0;
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std::deque<token> m_peekToken;
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};
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} // namespace furc
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#endif // FURC_FRONT_LEXER_HPP
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