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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
**
**************************************************************************/
#ifndef QMLJSINDENTER_H
#define QMLJSINDENTER_H
#include <qmljs/qmljs_global.h>
#include <qmljs/qmljsscanner.h>
#include <QtCore/QRegExp>
#include <QtCore/QStringList>
#include <QtGui/QTextBlock>
namespace QmlJS {
class QMLJS_EXPORT QmlJSIndenter
{
Q_DISABLE_COPY(QmlJSIndenter)
public:
QmlJSIndenter();
~QmlJSIndenter();
void setTabSize(int size);
void setIndentSize(int size);
int indentForBottomLine(QTextBlock firstBlock, QTextBlock lastBlock, QChar typedIn);
QChar firstNonWhiteSpace(const QString &t) const;
private:
static const int SmallRoof;
static const int BigRoof;
bool isOnlyWhiteSpace(const QString &t) const;
int columnForIndex(const QString &t, int index) const;
int indentOfLine(const QString &t) const;
QString trimmedCodeLine(const QString &t);
void eraseChar(QString &t, int k, QChar ch) const;
QChar lastParen() const;
bool okay(QChar typedIn, QChar okayCh) const;
/*
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.
*/
bool readLine();
void startLinizer();
bool bottomLineStartsInMultilineComment();
int indentWhenBottomLineStartsInMultiLineComment();
bool matchBracelessControlStatement();
bool isUnfinishedLine();
bool isContinuationLine();
int indentForContinuationLine();
int indentForStandaloneLine();
Token lastToken() const;
QStringRef tokenText(const Token &token) const;
private:
int ppHardwareTabSize;
int ppIndentSize;
int ppContinuationIndentSize;
int ppCommentOffset;
private:
struct LinizerState
{
LinizerState()
: braceDepth(0),
leftBraceFollows(false),
pendingRightBrace(false)
{ }
int braceDepth;
bool leftBraceFollows;
bool pendingRightBrace;
QString line;
QList<Token> tokens;
QTextBlock iter;
};
class Program
{
public:
Program() {}
Program(QTextBlock begin, QTextBlock end)
: begin(begin), end(end) {}
QTextBlock firstBlock() const { return begin; }
QTextBlock lastBlock() const { return end; }
private:
QTextBlock begin, end;
};
Program yyProgram;
LinizerState yyLinizerState;
// shorthands
const QString *yyLine;
const int *yyBraceDepth;
const bool *yyLeftBraceFollows;
QRegExp label;
QRegExp braceX;
QRegExp iflikeKeyword;
};
} // namespace QmlJS
#endif // QMLJSINDENTER_H
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