46 lines
1004 B
C
46 lines
1004 B
C
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#pragma once
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#include "Token.h"
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#include <memory>
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#include <vector>
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#include <string>
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#include <array>
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typedef std::vector<Token> TokenStream;
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#define KEYWORD_COUNT 3
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class Lexer
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{
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private:
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Location loc;
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Location prev_loc;
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int advance();
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int rewind();
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char current_char;
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int index;
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Lexer(const std::string& fname);
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std::string current_line_text;
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std::string previous_line_text;
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std::string current_lexed_text;
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std::string recalculate_current_line(const std::string& text);
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Token create_string();
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Token create_number();
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Token create_identifier();
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bool is_in_string(const std::string& string, const char& character);
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public:
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static const std::array<std::string,KEYWORD_COUNT> keywords;
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~Lexer();
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TokenStream lex(const std::string& text);
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static std::shared_ptr<Lexer> make_lexer(const std::string& fname);
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static void assign_parent_location(std::shared_ptr<Lexer>& lexer, const std::shared_ptr<Location>& loc);
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};
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