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/* * This file is part of the KDE libraries * Copyright (C) 1999 Harri Porten (porten@kde.org) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public License * along with this library; see the file COPYING.LIB. If not, write to * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifndef _KJSLEXER_H_ #define _KJSLEXER_H_ #include "global.h" #include "kjsstring.h" namespace KJS { class KJSLexerPrivate; class KJSLexer { public: KJSLexer(); ~KJSLexer(); void setCode(const UChar *c, unsigned int len); int lex(); int lineNo() const { return yylineno + 1; } bool prevTerminator() const { return terminator; } enum State { Start, Identifier, InIdentifier, InSingleLineComment, InMultiLineComment, InNum, InNum0, InHex, InOctal, InDecimal, InExponentIndicator, InExponent, Int, Hex, Octal, Decimal, String, Eof, InString, InEscapeSequence, InHexEscape, InUnicodeEscape, Other, Bad }; int yylineno; private: bool done; char *buffer8; UChar *buffer16; unsigned int size8, size16; unsigned int pos8, pos16; bool terminator; bool restrKeyword; int stackToken; State state; void setDone(State s); unsigned int pos; void shift(unsigned int p); int lookupKeyword(const char *); bool isWhiteSpace() const; bool isLineTerminator() const; bool isIdentLetter() const; bool isDecimalDigit(unsigned short c) const; bool isHexDigit(unsigned short c) const; bool isOctalDigit(unsigned short c) const; int matchPunctuator(unsigned short c1, unsigned short c2, unsigned short c3, unsigned short c4); unsigned char singleEscape(unsigned short c) const; unsigned short convertOctal(unsigned short c1, unsigned short c2, unsigned short c3) const; unsigned char convertHex(unsigned short c1) const; unsigned char convertHex(unsigned short c1, unsigned short c2) const; UChar convertUnicode(unsigned short c1, unsigned short c2, unsigned short c3, unsigned short c4) const; void record8(unsigned short c); void record16(unsigned char c); void record16(UChar c); const UChar *code; unsigned int length; int yycolumn; // current and following unicode characters unsigned short current, next1, next2, next3; struct keyword { const char *name; int token; }; static struct keyword keytable[]; // for future extensions KJSLexerPrivate *priv; }; }; // namespace #endif
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