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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 : #include "unotools/unotoolsdllapi.h"
20 :
21 : #ifndef _UNOTOOLS_TEXTSEARCH_HXX
22 : #define _UNOTOOLS_TEXTSEARCH_HXX
23 : #include <i18nlangtag/lang.h>
24 : #include <rtl/ustring.hxx>
25 : #include <com/sun/star/uno/Reference.h>
26 : #include <com/sun/star/lang/Locale.hpp>
27 : #include <com/sun/star/util/XTextSearch.hpp>
28 : #include <com/sun/star/util/SearchOptions.hpp>
29 :
30 : class CharClass;
31 :
32 : namespace com {
33 : namespace sun {
34 : namespace star {
35 : namespace util {
36 : struct SearchResult;
37 : }
38 : }
39 : }
40 : }
41 :
42 : // ............................................................................
43 : namespace utl
44 : {
45 : // ............................................................................
46 :
47 : // Utility class for searching
48 : class UNOTOOLS_DLLPUBLIC SearchParam
49 : {
50 : public:
51 : enum SearchType{ SRCH_NORMAL, SRCH_REGEXP, SRCH_LEVDIST };
52 :
53 : private:
54 : OUString sSrchStr; // the search string
55 : OUString sReplaceStr; // the replace string
56 :
57 : SearchType m_eSrchType; // search normal/regular/LevDist
58 :
59 : int m_bWordOnly : 1; // used by normal search
60 : int m_bSrchInSel : 1; // search only in the selection
61 : int m_bCaseSense : 1; //
62 :
63 : // values for the "weight Levenshtein-Distance"
64 : int bLEV_Relaxed : 1;
65 : int nLEV_OtherX;
66 : int nLEV_ShorterY;
67 : int nLEV_LongerZ;
68 :
69 : // asian flags - used for the transliteration
70 : long nTransliterationFlags;
71 :
72 : public:
73 : SearchParam( const OUString &rText,
74 : SearchType eSrchType = SearchParam::SRCH_NORMAL,
75 : bool bCaseSensitive = true,
76 : bool bWordOnly = false,
77 : bool bSearchInSelection = false );
78 :
79 : SearchParam( const SearchParam& );
80 :
81 : ~SearchParam();
82 :
83 6 : const OUString& GetSrchStr() const { return sSrchStr; }
84 6 : const OUString& GetReplaceStr() const { return sReplaceStr; }
85 6 : SearchType GetSrchType() const { return m_eSrchType; }
86 :
87 6 : int IsCaseSensitive() const { return m_bCaseSense; }
88 6 : int IsSrchInSelection() const { return m_bSrchInSel; }
89 0 : int IsSrchWordOnly() const { return m_bWordOnly; }
90 :
91 :
92 : void SetSrchStr( const OUString& rStr ) { sSrchStr = rStr; }
93 : void SetReplaceStr( const OUString& rStr ) { sReplaceStr = rStr; }
94 : void SetSrchType( SearchType eType ) { m_eSrchType = eType; }
95 :
96 : void SetCaseSensitive( int bFlag ) { m_bCaseSense = bFlag; }
97 : void SetSrchInSelection( int bFlag ) { m_bSrchInSel = bFlag; }
98 : void SetSrchWordOnly( int bFlag ) { m_bWordOnly = bFlag; }
99 :
100 0 : int IsSrchRelaxed() const { return bLEV_Relaxed; }
101 0 : int GetLEVOther() const { return nLEV_OtherX; }
102 0 : int GetLEVShorter() const { return nLEV_ShorterY; }
103 0 : int GetLEVLonger() const { return nLEV_LongerZ; }
104 :
105 : void SetSrchRelaxed( int bFlag ) { bLEV_Relaxed = bFlag; }
106 : void SetLEVOther( int nValue ) { nLEV_OtherX = nValue; }
107 : void SetLEVShorter( int nValue ) { nLEV_ShorterY = nValue; }
108 : void SetLEVLonger( int nValue ) { nLEV_LongerZ = nValue; }
109 :
110 6 : long GetTransliterationFlags() const { return nTransliterationFlags; }
111 : void SetTransliterationFlags( long nValue ) { nTransliterationFlags = nValue; }
112 : };
113 :
114 : // Utility class for searching a substring in a string.
115 : // The following metrics are supported
116 : // - ordinary text (Bayer/Moore)
117 : // - regular expressions
118 : // - weighted Levenshtein distance
119 : //
120 : // This class allows forward and backward searching!
121 :
122 : class UNOTOOLS_DLLPUBLIC TextSearch
123 : {
124 : static ::com::sun::star::uno::Reference< ::com::sun::star::util::XTextSearch >
125 : getXTextSearch( const ::com::sun::star::util::SearchOptions& rPara );
126 :
127 : com::sun::star::uno::Reference < com::sun::star::util::XTextSearch >
128 : xTextSearch;
129 :
130 : void Init( const SearchParam & rParam,
131 : const ::com::sun::star::lang::Locale& rLocale );
132 :
133 : public:
134 : // rText is the string being searched for
135 : // this first two CTORs are deprecated!
136 : TextSearch( const SearchParam & rPara, LanguageType nLanguage );
137 : TextSearch( const SearchParam & rPara, const CharClass& rCClass );
138 :
139 : TextSearch( const ::com::sun::star::util::SearchOptions& rPara );
140 : ~TextSearch();
141 :
142 : /* search in the (selected) text the search string:
143 : rScrTxt - the text, in in which we search
144 : pStart - start position for the search
145 : pEnde - end position for the search
146 :
147 : RETURN values == true: something is found
148 : - pStart start pos of the found text,
149 : - pStart end pos of the found text,
150 : - pSrchResult - the search result with all found
151 : positions. Is only filled with more positions
152 : if the regular expression handles groups.
153 :
154 : == false: nothing found, pStart,pEnde unchanged.
155 :
156 : Definitions: start pos always inclusive, end pos always exclusive!
157 : The position must always in the right direction!
158 : search forward: start <= end
159 : search backward: end <= start
160 : */
161 : bool SearchForward( const OUString &rStr,
162 : sal_Int32* pStart, sal_Int32* pEnd,
163 : ::com::sun::star::util::SearchResult* pRes = 0 );
164 : bool SearchBackward( const OUString &rStr,
165 : sal_Int32* pStart, sal_Int32* pEnd,
166 : ::com::sun::star::util::SearchResult* pRes = 0 );
167 :
168 : void SetLocale( const ::com::sun::star::util::SearchOptions& rOpt,
169 : const ::com::sun::star::lang::Locale& rLocale );
170 :
171 : /* replace back references in the replace string by the sub expressions from the search result */
172 : void ReplaceBackReferences( OUString& rReplaceStr, const OUString &rStr, const ::com::sun::star::util::SearchResult& rResult );
173 :
174 : };
175 :
176 : // ............................................................................
177 : } // namespace utl
178 : // ............................................................................
179 :
180 : #endif
181 :
182 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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