32 lines
581 B
C
32 lines
581 B
C
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#ifndef LEXER_H
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#define LEXER_H
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#include "Token.h"
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class Lexer {
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public:
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explicit Lexer(QString src);
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const Token& peek() const { return m_cur; }
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Token next(); // consume current and advance
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bool match(TokenKind k);
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Token expect(TokenKind k, const char* msg);
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private:
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Token lexOne();
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void skipWsAndComments();
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QChar ch(int i = 0) const;
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void advance(int n = 1);
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Token make(TokenKind k, QString t = QString());
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QString m_src;
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int m_i = 0;
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int m_line = 1;
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int m_col = 1;
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Token m_cur;
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};
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#endif // LEXER_H
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