49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
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#pragma once
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#include <string>
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#include <list>
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class Lexer {
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public:
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struct LexerToken {
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enum class Type {
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None, Word, Semicolon, CurlyOpenBracket, CurlyCloseBracket,
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RoundOpenBracket, RoundCloseBracket, Period, Commo, Plus, Minus, Star,
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Slash, Equal, ExclamationMark, PlusEqual, MinusEqual, StarEqual,
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SlashEqual, EqualEqual, ExclamationMarkEqual, PlusPlus, MinusMinus,
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LAngle, RAngle, LAngleEqual, RAngleEqual, LArrow, RArrow, FOR, IF, ELSE,
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WHILE, StringLiteral
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};
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LexerToken() = default;
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LexerToken(const LexerToken&) = default;
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LexerToken(LexerToken&&) = default;
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LexerToken(const Type& type, const std::string& info) : type(type), info(info) {}
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LexerToken(const Type& type, std::string&& info) : type(type), info(info) {}
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LexerToken(Type&& type, const std::string& info) : type(type), info(info) {}
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LexerToken(Type&& type, std::string&& info) : type(type), info(info) {}
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LexerToken& operator=(LexerToken&&) = default;
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LexerToken& operator=(const LexerToken&) = default;
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Type type;
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std::string info;
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};
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using LexerTokenList = std::list<LexerToken>;
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void ParseText(std::string&&);
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void ParseText(const std::string&);
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LexerTokenList GetTokens() const;
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private:
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void PushToken();
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LexerTokenList tokens;
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LexerToken::Type current_state = LexerToken::Type::None;
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std::string current_info;
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};
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using LexerTokenList = Lexer::LexerTokenList;
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namespace std {
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std::string to_string(Lexer::LexerToken::Type);
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}
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