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Diffstat (limited to 'include/unotools/textsearch.hxx')
| -rw-r--r-- | include/unotools/textsearch.hxx | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/include/unotools/textsearch.hxx b/include/unotools/textsearch.hxx new file mode 100644 index 000000000000..0b826102cb91 --- /dev/null +++ b/include/unotools/textsearch.hxx @@ -0,0 +1,186 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ +#include "unotools/unotoolsdllapi.h" + +#ifndef _UNOTOOLS_TEXTSEARCH_HXX +#define _UNOTOOLS_TEXTSEARCH_HXX +#include <i18nlangtag/lang.h> +#include <rtl/ustring.hxx> +#include <tools/string.hxx> +#include <com/sun/star/uno/Reference.h> +#include <com/sun/star/lang/Locale.hpp> +#include <com/sun/star/util/XTextSearch.hpp> +#include <com/sun/star/util/SearchOptions.hpp> + +class CharClass; + +namespace com { + namespace sun { + namespace star { + namespace util { + struct SearchResult; + } + } + } +} + +// ............................................................................ +namespace utl +{ +// ............................................................................ + +// Utility class for searching +class UNOTOOLS_DLLPUBLIC SearchParam +{ +public: + enum SearchType{ SRCH_NORMAL, SRCH_REGEXP, SRCH_LEVDIST }; + +private: + String sSrchStr; // the search string + String sReplaceStr; // the replace string + + SearchType m_eSrchType; // search normal/regular/LevDist + + int m_bWordOnly : 1; // used by normal search + int m_bSrchInSel : 1; // search only in the selection + int m_bCaseSense : 1; // + + // values for the "weight Levenshtein-Distance" + int bLEV_Relaxed : 1; + int nLEV_OtherX; + int nLEV_ShorterY; + int nLEV_LongerZ; + + // asian flags - used for the transliteration + long nTransliterationFlags; + +public: + SearchParam( const OUString &rText, + SearchType eSrchType = SearchParam::SRCH_NORMAL, + sal_Bool bCaseSensitive = sal_True, + sal_Bool bWordOnly = sal_False, + sal_Bool bSearchInSelection = sal_False ); + + SearchParam( const SearchParam& ); + + ~SearchParam(); + + const String& GetSrchStr() const { return sSrchStr; } + const String& GetReplaceStr() const { return sReplaceStr; } + SearchType GetSrchType() const { return m_eSrchType; } + + int IsCaseSensitive() const { return m_bCaseSense; } + int IsSrchInSelection() const { return m_bSrchInSel; } + int IsSrchWordOnly() const { return m_bWordOnly; } + + + void SetSrchStr( const String& rStr ) { sSrchStr = rStr; } + void SetReplaceStr( const String& rStr ) { sReplaceStr = rStr; } + void SetSrchType( SearchType eType ) { m_eSrchType = eType; } + + void SetCaseSensitive( int bFlag ) { m_bCaseSense = bFlag; } + void SetSrchInSelection( int bFlag ) { m_bSrchInSel = bFlag; } + void SetSrchWordOnly( int bFlag ) { m_bWordOnly = bFlag; } + + int IsSrchRelaxed() const { return bLEV_Relaxed; } + int GetLEVOther() const { return nLEV_OtherX; } + int GetLEVShorter() const { return nLEV_ShorterY; } + int GetLEVLonger() const { return nLEV_LongerZ; } + + void SetSrchRelaxed( int bFlag ) { bLEV_Relaxed = bFlag; } + void SetLEVOther( int nValue ) { nLEV_OtherX = nValue; } + void SetLEVShorter( int nValue ) { nLEV_ShorterY = nValue; } + void SetLEVLonger( int nValue ) { nLEV_LongerZ = nValue; } + + long GetTransliterationFlags() const { return nTransliterationFlags; } + void SetTransliterationFlags( long nValue ) { nTransliterationFlags = nValue; } +}; + +// Utility class for searching a substring in a string. +// The following metrics are supported +// - ordinary text (Bayer/Moore) +// - regular expressions +// - weighted Levenshtein distance +// +// This class allows forward and backward searching! + +class UNOTOOLS_DLLPUBLIC TextSearch +{ + static ::com::sun::star::uno::Reference< ::com::sun::star::util::XTextSearch > + getXTextSearch( const ::com::sun::star::util::SearchOptions& rPara ); + + com::sun::star::uno::Reference < com::sun::star::util::XTextSearch > + xTextSearch; + + void Init( const SearchParam & rParam, + const ::com::sun::star::lang::Locale& rLocale ); + +public: + // rText is the string being searched for + // this first two CTORs are deprecated! + TextSearch( const SearchParam & rPara, LanguageType nLanguage ); + TextSearch( const SearchParam & rPara, const CharClass& rCClass ); + + TextSearch( const ::com::sun::star::util::SearchOptions& rPara ); + ~TextSearch(); + + /* search in the (selected) text the search string: + rScrTxt - the text, in in which we search + pStart - start position for the search + pEnde - end position for the search + + RETURN values == sal_True: something is found + - pStart start pos of the found text, + - pStart end pos of the found text, + - pSrchResult - the search result with all found + positions. Is only filled with more positions + if the regular expression handles groups. + + == sal_False: nothing found, pStart,pEnde unchanged. + + Definitions: start pos always inclusive, end pos always exclusive! + The position must always in the right direction! + search forward: start <= end + search backward: end <= start + */ + int SearchFrwrd( const String &rStr, + xub_StrLen* pStart, xub_StrLen* pEnde, + ::com::sun::star::util::SearchResult* pSrchResult = 0 ); + sal_Bool SearchForward( const OUString &rStr, + sal_Int32* pStart, sal_Int32* pEnd, + ::com::sun::star::util::SearchResult* pRes = 0 ); + int SearchBkwrd( const String &rStr, + xub_StrLen* pStart, xub_StrLen* pEnde, + ::com::sun::star::util::SearchResult* pSrchResult = 0 ); + + void SetLocale( const ::com::sun::star::util::SearchOptions& rOpt, + const ::com::sun::star::lang::Locale& rLocale ); + + /* replace back references in the replace string by the sub expressions from the search result */ + void ReplaceBackReferences( String& rReplaceStr, const String &rStr, const ::com::sun::star::util::SearchResult& rResult ); + +}; + +// ............................................................................ +} // namespace utl +// ............................................................................ + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |