1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/***************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Qt Software Information (qt-info@nokia.com)
**
**
** Non-Open Source Usage
**
** Licensees may use this file in accordance with the Qt Beta Version
** License Agreement, Agreement version 2.2 provided with the Software or,
** alternatively, in accordance with the terms contained in a written
** agreement between you and Nokia.
**
** GNU General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the packaging
** of this file. Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
**
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt GPL Exception
** version 1.3, included in the file GPL_EXCEPTION.txt in this package.
**
***************************************************************************/
#ifndef INDENTER_H
#define INDENTER_H
#include <QtCore/QString>
#include <QtCore/QStringList>
namespace SharedTools {
namespace IndenterInternal {
/* String constants and regexps required by the indenter. Separate for code cleanliness*/
struct Constants {
Constants();
const QString m_slashAster;
const QString m_asterSlash;
const QString m_slashSlash;
const QString m_else;
const QString m_qobject;
const QString m_operators;
const QString m_bracesSemicolon;
const QString m_3dots;
QRegExp m_literal;
QRegExp m_label;
QRegExp m_inlineCComment;
QRegExp m_braceX;
QRegExp m_iflikeKeyword;
QRegExp m_caseLabel;
};
/* The "linizer" is a group of functions and variables to iterate
* through the source code of the program to indent. The program is
* given as a list of strings, with the bottom line being the line to
* indent. The actual program might contain extra lines, but those are
* uninteresting and not passed over to us. */
template <class Iterator>
struct LinizerState {
QString line;
int braceDepth;
bool leftBraceFollows;
Iterator iter;
bool inCComment;
bool pendingRightBrace;
};
}
/* Indenter singleton as a template of a bidirectional input iterator
* of a sequence of code lines represented as QString.
* When setting the parameters, be careful to
* specify the correct template parameters (best use a typedef). */
template <class Iterator>
class Indenter {
Indenter(const Indenter&);
Indenter &operator=(const Indenter&);
Indenter();
public:
~Indenter();
static Indenter &instance();
void setIndentSize(int size);
void setTabSize(int size );
/* Return indentation for the last line of the sequence
* based on the previous lines. */
int indentForBottomLine(const Iterator ¤t,
const Iterator &programBegin,
const Iterator &programEnd,
QChar typedIn);
// Helpers.
static bool isOnlyWhiteSpace( const QString& t);
static QChar firstNonWhiteSpace( const QString& t );
private:
int columnForIndex( const QString& t, int index ) const;
int indentOfLine( const QString& t ) const;
QString trimmedCodeLine( const QString& t );
bool readLine();
void startLinizer();
bool bottomLineStartsInCComment();
int indentWhenBottomLineStartsInCComment() const;
bool matchBracelessControlStatement();
bool isUnfinishedLine();
bool isContinuationLine();
int indentForContinuationLine();
int indentForStandaloneLine();
IndenterInternal::Constants m_constants;
int ppHardwareTabSize;
int ppIndentSize;
int ppContinuationIndentSize;
Iterator yyProgramBegin;
Iterator yyProgramEnd;
typedef typename IndenterInternal::LinizerState<Iterator> LinizerState;
LinizerState *yyLinizerState ;
// shorthands
const QString *yyLine;
const int *yyBraceDepth;
const bool *yyLeftBraceFollows;
};
}
#include "indenter_impl.h"
#endif // INDENTER_H
|
