44 lines
809 B
C++
44 lines
809 B
C++
#ifndef muz_LEXER_HPP
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#define muz_LEXER_HPP
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#include "commons.hpp"
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#include "Node.hpp"
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namespace muz
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{
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struct TokenInfo
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{
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size_t position;
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NodeType type;
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std::string value;
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};
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/**
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* Scan a text and gives corresponding tokens.
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* @see Node
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**/
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class Lexer
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{
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public:
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explicit Lexer();
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virtual ~Lexer();
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void scan(std::string const& source);
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std::vector<std::shared_ptr<Node>> all();
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std::shared_ptr<Node> next();
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private:
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std::string m_source;
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size_t m_cursor = 0;
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std::vector<char> m_seps;
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std::optional<TokenInfo> next_word();
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bool is_sep(size_t index) const;
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bool is_num(std::string const& word) const;
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bool is_ident(std::string const& word) const;
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bool is_dir_ident(std::string const& word) const;
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};
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}
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#endif
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