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/****************************************************************************
**
** Copyright (C) 2016 Jan Dalheimer <jan@dalheimer.de>
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "cmakeautocompleter.h"
#include <QRegExp>
#include <QTextCursor>
#include <QTextBlock>
#include <QDebug>
#include <texteditor/tabsettings.h>
namespace CMakeProjectManager {
namespace Internal {
CMakeAutoCompleter::CMakeAutoCompleter()
{
setAutoInsertBracketsEnabled(true);
}
bool CMakeAutoCompleter::isInComment(const QTextCursor &cursor) const
{
// NOTE: This doesn't handle '#' inside quotes, nor multi-line comments
QTextCursor moved = cursor;
moved.movePosition(QTextCursor::StartOfLine, QTextCursor::KeepAnchor);
return moved.selectedText().contains(QLatin1Char('#'));
}
bool CMakeAutoCompleter::isInString(const QTextCursor &cursor) const
{
// NOTE: multiline strings are currently not supported, since they rarely, if ever, seem to be used
QTextCursor moved = cursor;
moved.movePosition(QTextCursor::StartOfLine);
const int positionInLine = cursor.position() - moved.position();
moved.movePosition(QTextCursor::EndOfLine, QTextCursor::KeepAnchor);
const QString line = moved.selectedText();
bool isEscaped = false;
bool inString = false;
for (int i = 0; i < positionInLine; ++i) {
const QChar c = line.at(i);
if (c == QLatin1Char('\\') && !isEscaped)
isEscaped = true;
else if (c == QLatin1Char('"') && !isEscaped)
inString = !inString;
else
isEscaped = false;
}
return inString;
}
QString CMakeAutoCompleter::insertMatchingBrace(const QTextCursor &cursor,
const QString &text,
QChar lookAhead,
bool skipChars,
int *skippedChars) const
{
Q_UNUSED(cursor)
if (text.isEmpty())
return QString();
const QChar current = text.at(0);
switch (current.unicode()) {
case '(':
return QStringLiteral(")");
case ')':
if (current == lookAhead && skipChars)
++*skippedChars;
break;
default:
break;
}
return QString();
}
QString CMakeAutoCompleter::insertMatchingQuote(const QTextCursor &cursor,
const QString &text,
QChar lookAhead,
bool skipChars,
int *skippedChars) const
{
Q_UNUSED(cursor)
static const QChar quote(QLatin1Char('"'));
if (text.isEmpty() || text != quote)
return QString();
if (lookAhead == quote && skipChars) {
++*skippedChars;
return QString();
}
return quote;
}
int CMakeAutoCompleter::paragraphSeparatorAboutToBeInserted(QTextCursor &cursor)
{
const QString line = cursor.block().text().trimmed();
if (line.contains(QRegExp(QStringLiteral("^(endfunction|endmacro|endif|endforeach|endwhile)\\w*\\("))))
tabSettings().indentLine(cursor.block(), tabSettings().indentationColumn(cursor.block().text()));
return 0;
}
bool CMakeAutoCompleter::contextAllowsAutoBrackets(const QTextCursor &cursor,
const QString &textToInsert) const
{
if (textToInsert.isEmpty())
return false;
const QChar c = textToInsert.at(0);
if (c == QLatin1Char('(') || c == QLatin1Char(')'))
return !isInComment(cursor);
return false;
}
bool CMakeAutoCompleter::contextAllowsAutoQuotes(const QTextCursor &cursor, const QString &textToInsert) const
{
if (textToInsert.isEmpty())
return false;
const QChar c = textToInsert.at(0);
if (c == QLatin1Char('"'))
return !isInComment(cursor);
return false;
}
bool CMakeAutoCompleter::contextAllowsElectricCharacters(const QTextCursor &cursor) const
{
return !isInComment(cursor) && !isInString(cursor);
}
} // namespace Internal
} // namespace CMakeProjectManager
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