67 lines
1.4 KiB
C
67 lines
1.4 KiB
C
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#ifndef __LEXAL_H__
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#define __LEXAL_H__
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#include "streams.h"
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class Lexeme
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{
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public:
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typedef enum Type {
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String,
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Integer,
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Float,
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Ident,
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Symbol,
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Eof
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};
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private:
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int line;
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int pos;
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Type type;
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std::wstring content;
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public:
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Lexeme() { };
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Lexeme(Type type, const std::wstring &content, int line, int pos);
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~Lexeme() { };
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public:
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const Type getType() const { return type; };
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const std::wstring getContent() const { return content; };
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std::wstring getPosStr() const;
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int getLine() const { return line; };
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int getPos() const { return pos; };
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};
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class Lexal
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{
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private:
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UtfStreamReader &reader;
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int line;
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int pos;
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public:
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Lexal(UtfStreamReader &reader);
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~Lexal() { };
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public:
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Lexeme getNext();
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static std::wstring posToStr(int line, int pos);
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private:
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void skipSpaces();
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void skipToLineEnd();
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void skipMultilineComment(int startLine, int startPos);
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Lexeme readIdent(int startLine, int startPos, wchar_t first);
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Lexeme readNumber(int startLine, int startPos, wchar_t first);
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Lexeme readString(int startLine, int startPos, wchar_t quote);
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};
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#endif
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