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/****************************************************************************
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
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** This file is part of the QtScript module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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** In addition, as a special exception, Nokia gives you certain
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** additional rights. These rights are described in the Nokia Qt LGPL
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** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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** If you are unsure which license is appropriate for your use, please
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** contact the sales department at http://www.qtsoftware.com/contact.
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****************************************************************************/
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#ifndef QSCRIPTLEXER_P_H
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#define QSCRIPTLEXER_P_H
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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#include <QtCore/QString>
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class QScriptEnginePrivate;
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class QScriptNameIdImpl;
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Lexer(QScriptEnginePrivate *eng);
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void setCode(const QString &c, int lineno);
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int currentLineNo() const { return yylineno; }
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int currentColumnNo() const { return yycolumn; }
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int startLineNo() const { return startlineno; }
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int startColumnNo() const { return startcolumn; }
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int endLineNo() const { return currentLineNo(); }
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int endColumnNo() const
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{ int col = currentColumnNo(); return (col > 0) ? col - 1 : col; }
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bool prevTerminator() const { return terminator; }
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UnclosedStringLiteral,
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IllegalEscapeSequence,
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IllegalUnicodeEscapeSequence,
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IllegalExponentIndicator,
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enum ParenthesesState {
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enum RegExpBodyPrefix {
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bool scanRegExp(RegExpBodyPrefix prefix = NoPrefix);
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QScriptNameIdImpl *pattern;
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State lexerState() const
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QString errorMessage() const
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void setErrorMessage(const QString &err)
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void setErrorMessage(const char *err)
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{ setErrorMessage(QString::fromLatin1(err)); }
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QScriptEnginePrivate *driver;
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// encountered delimiter like "'" and "}" on last run
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void setDone(State s);
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int lookupKeyword(const char *);
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bool isWhiteSpace() const;
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bool isLineTerminator() const;
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bool isHexDigit(ushort c) const;
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bool isOctalDigit(ushort c) const;
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int matchPunctuator(ushort c1, ushort c2,
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ushort c3, ushort c4);
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ushort singleEscape(ushort c) const;
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ushort convertOctal(ushort c1, ushort c2,
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static unsigned char convertHex(ushort c1);
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static unsigned char convertHex(ushort c1, ushort c2);
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static QChar convertUnicode(ushort c1, ushort c2,
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ushort c3, ushort c4);
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static bool isIdentLetter(ushort c);
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static bool isDecimalDigit(ushort c);
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inline int ival() const { return qsyylval.ival; }
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inline double dval() const { return qsyylval.dval; }
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inline QScriptNameIdImpl *ustr() const { return qsyylval.ustr; }
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const QChar *characterBuffer() const { return buffer16; }
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int characterCount() const { return pos16; }
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void record8(ushort c);
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void record16(QChar c);
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void recordStartPos();
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int findReservedWord(const QChar *buffer, int size) const;
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void syncProhibitAutomaticSemicolon();
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int bol; // begin of line
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QScriptNameIdImpl *ustr;
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// current and following unicode characters
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ushort current, next1, next2, next3;
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ParenthesesState parenthesesState;
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int parenthesesCount;
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bool prohibitAutomaticSemicolon;
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} // namespace QScript
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#endif // QT_NO_SCRIPT