33 lines
1.3 KiB
C++
33 lines
1.3 KiB
C++
#ifndef YERBACON_LEX_H
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#define YERBACON_LEX_H
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#include <vector>
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#include "Yerbacon.hpp"
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#include <limits>
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#include <ostream>
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struct tok {
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typedef Yerbacon::Exception LexerException;
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enum type: const unsigned short {
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UNEXPECTED = std::numeric_limits<unsigned char>::max() + 1, IDENTIFIER, NUMBER, ALPHACHAR,
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DEFINE = '=', TAG = '#', DOLLAR_SIGN = '$', DOT = '.', COMMA = ',',
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LPAR = '(', LBRACE = '{', LBRACKET = '[', RPAR = ')',
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RBRACE = '}', RBRACKET = ']',
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PLUS = '+', HYPHEN = '-', DIVIDE = '/',
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LCOMP = '>', RCOMP = '<',
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SQUOTE = '\'', ASTERISK = '*', STRING = '"',
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};
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static auto inverseLCharacter(const unsigned char& character) {
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return static_cast<unsigned char>(((character + 2) - (character == tok::LPAR)));
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};
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type toktype;
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std::string toktext;
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unsigned long line;
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tok(): toktype(UNEXPECTED), toktext(), line(0) {};
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tok(const type& Type, std::string_view Text, const decltype(line)& line = 0): toktype(Type), toktext(Text), line(line) {}
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explicit tok(const type& Type, const decltype(line)& line = 0): tok(Type, std::string(1, Type), line) {};
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friend std::ostream& operator<<(std::ostream& output, const tok& it) { return output << it.toktext; }
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};
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std::vector<tok> lex(const std::string& in);
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#endif //YERBACON_TEST_H
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