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108 lines
4.1 KiB
C++
108 lines
4.1 KiB
C++
/* This file is part of the KDE libraries and the Kate part.
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*
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* Copyright (C) 2010 Bernhard Beschow <bbeschow@cs.tu-berlin.de>
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* Copyright (C) 2007 Sebastian Pipping <webmaster@hartwork.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef _KATE_REGEXPSEARCH_H_
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#define _KATE_REGEXPSEARCH_H_
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#include <QtCore/QObject>
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#include <ktexteditor/range.h>
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#include "katepartinterfaces_export.h"
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namespace KTextEditor {
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class Document;
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}
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/**
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* Object to help to search for regexp.
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* This should be NO QObject, it is created to often!
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* I measured that, if you create it 20k times to replace for example " " in a document, that takes seconds on a modern machine!
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*/
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class KATEPARTINTERFACES_EXPORT KateRegExpSearch
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{
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public:
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explicit KateRegExpSearch (KTextEditor::Document *document, Qt::CaseSensitivity caseSensitivity);
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~KateRegExpSearch ();
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//
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// KTextEditor::SearchInterface stuff
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//
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public:
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/**
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* Search for the regular expression \p regexp inside the range
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* \p inputRange. If \p backwards is \e true, the search direction will
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* be reversed.
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*
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* \param regexp text to search for
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* \param inputRange Range to search in
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* \param backwards if \e true, the search will be backwards
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* \return Vector of ranges, one for each capture. The first range (index zero)
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* spans the full match. If the pattern does not match the vector
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* has length 1 and holds the invalid range (see Range::isValid()).
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* \see KTextEditor::Range, QRegExp
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*/
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QVector<KTextEditor::Range> search (const QString &pattern,
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const KTextEditor::Range & inputRange, bool backwards = false);
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/**
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* Returns a modified version of text where escape sequences are resolved, e.g. "\\n" to "\n".
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*
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* \param text text containing escape sequences
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* \return text with resolved escape sequences
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*/
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static QString escapePlaintext(const QString &text);
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/**
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* Returns a modified version of text where
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* \li escape sequences are resolved, e.g. "\\n" to "\n",
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* \li references are resolved, e.g. "\\1" to <i>1st entry in capturedTexts</i>, and
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* \li counter sequences are resolved, e.g. "\\#...#" to <i>replacementCounter</i>.
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*
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* \param text text containing escape sequences, references, and counter sequences
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* \param capturedTexts list of substitutes for references
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* \param replacementCounter value for replacement counter
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* \return resolved text
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*/
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static QString buildReplacement(const QString &text, const QStringList &capturedTexts, int replacementCounter);
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private:
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/**
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* Implementation of escapePlainText() and public buildReplacement().
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*
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* \param text text containing escape sequences and possibly references and counters
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* \param capturedTexts list of substitutes for references
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* \param replacementCounter value for replacement counter (only used when replacementGoodies == true)
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* \param replacementGoodies <code>true</code> for buildReplacement(), <code>false</code> for escapePlainText()
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* \return resolved text
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*/
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static QString buildReplacement(const QString &text, const QStringList &capturedTexts, int replacementCounter, bool replacementGoodies);
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private:
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KTextEditor::Document *const m_document;
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Qt::CaseSensitivity m_caseSensitivity;
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class ReplacementStream;
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};
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#endif
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// kate: space-indent on; indent-width 2; replace-tabs on;
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