source: trunk/src/script/qscriptlexer_p.h@ 178

Last change on this file since 178 was 2, checked in by Dmitry A. Kuminov, 17 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 6.6 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
5**
6** This file is part of the QtScript module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you are unsure which license is appropriate for your use, please
37** contact the sales department at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef QSCRIPTLEXER_P_H
43#define QSCRIPTLEXER_P_H
44
45//
46// W A R N I N G
47// -------------
48//
49// This file is not part of the Qt API. It exists purely as an
50// implementation detail. This header file may change from version to
51// version without notice, or even be removed.
52//
53// We mean it.
54//
55
56#include <QtCore/QString>
57
58#ifndef QT_NO_SCRIPT
59
60QT_BEGIN_NAMESPACE
61
62class QScriptEnginePrivate;
63class QScriptNameIdImpl;
64
65namespace QScript {
66
67class Lexer
68{
69public:
70 Lexer(QScriptEnginePrivate *eng);
71 ~Lexer();
72
73 void setCode(const QString &c, int lineno);
74 int lex();
75
76 int currentLineNo() const { return yylineno; }
77 int currentColumnNo() const { return yycolumn; }
78
79 int startLineNo() const { return startlineno; }
80 int startColumnNo() const { return startcolumn; }
81
82 int endLineNo() const { return currentLineNo(); }
83 int endColumnNo() const
84 { int col = currentColumnNo(); return (col > 0) ? col - 1 : col; }
85
86 bool prevTerminator() const { return terminator; }
87
88 enum State { Start,
89 Identifier,
90 InIdentifier,
91 InSingleLineComment,
92 InMultiLineComment,
93 InNum,
94 InNum0,
95 InHex,
96 InOctal,
97 InDecimal,
98 InExponentIndicator,
99 InExponent,
100 Hex,
101 Octal,
102 Number,
103 String,
104 Eof,
105 InString,
106 InEscapeSequence,
107 InHexEscape,
108 InUnicodeEscape,
109 Other,
110 Bad };
111
112 enum Error {
113 NoError,
114 IllegalCharacter,
115 UnclosedStringLiteral,
116 IllegalEscapeSequence,