80 lines
1.6 KiB
C++
80 lines
1.6 KiB
C++
#pragma once
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/*
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* Created by Brett on 17/11/23.
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* Licensed under GNU General Public License V3.0
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* See LICENSE file for license detail
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*/
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#ifndef BRAINFUCK_MISC_BF_TOKENIZER_H
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#define BRAINFUCK_MISC_BF_TOKENIZER_H
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#include <vector>
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#include <string>
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#include <optional>
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enum class bf_token
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{
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INC_DP,
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DEC_DP,
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INC_DV,
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DEC_DV,
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PRINT,
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READ,
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OPEN,
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CLOSE
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};
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struct token_t
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{
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bf_token token;
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std::optional<uint64_t> name = {};
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explicit token_t(bf_token token): token(token)
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{}
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};
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typedef std::optional<std::reference_wrapper<const token_t>> optional_token;
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class tokenizer
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{
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private:
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std::vector<token_t> tokens;
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size_t conditionalCount = 0;
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size_t currentIndex = 0;
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void tokenize(const std::string& program);
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void bf_name();
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public:
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explicit tokenizer(const std::string& program)
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{
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tokenize(program);
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bf_name();
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}
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inline bool hasNext(){
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return currentIndex < tokens.size();
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}
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inline void advance(){
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currentIndex++;
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}
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inline optional_token next() {
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if (currentIndex >= tokens.size())
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return {};
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return tokens[currentIndex++];
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}
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inline optional_token peek(){
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if (currentIndex >= tokens.size())
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return {};
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return tokens[currentIndex];
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}
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void print(size_t index = 0);
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};
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#endif //BRAINFUCK_MISC_BF_TOKENIZER_H
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