xref: /trunk/main/sc/source/core/tool/reffind.cxx (revision cdf0e10c4e3984b49a9502b011690b615761d4a3)
1 /*************************************************************************
2  *
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * Copyright 2000, 2010 Oracle and/or its affiliates.
6  *
7  * OpenOffice.org - a multi-platform office productivity suite
8  *
9  * This file is part of OpenOffice.org.
10  *
11  * OpenOffice.org is free software: you can redistribute it and/or modify
12  * it under the terms of the GNU Lesser General Public License version 3
13  * only, as published by the Free Software Foundation.
14  *
15  * OpenOffice.org is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU Lesser General Public License version 3 for more details
19  * (a copy is included in the LICENSE file that accompanied this code).
20  *
21  * You should have received a copy of the GNU Lesser General Public License
22  * version 3 along with OpenOffice.org.  If not, see
23  * <http://www.openoffice.org/license.html>
24  * for a copy of the LGPLv3 License.
25  *
26  ************************************************************************/
27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_sc.hxx"
30 
31 
32 
33 // INCLUDE ---------------------------------------------------------------
34 
35 #include <string.h>
36 
37 #include "reffind.hxx"
38 #include "global.hxx"
39 #include "compiler.hxx"
40 #include "document.hxx"
41 
42 // STATIC DATA -----------------------------------------------------------
43 
44 //  incl. Doppelpunkt -> Doppelte Referenzen werden einzeln behandelt
45 const sal_Unicode __FAR_DATA ScRefFinder::pDelimiters[] = {
46     '=','(',')',';','+','-','*','/','^','&',' ','{','}','<','>',':', 0
47 };
48 
49 // =======================================================================
50 
51 inline sal_Bool IsText( sal_Unicode c )
52 {
53     return !ScGlobal::UnicodeStrChr( ScRefFinder::pDelimiters, c );
54 }
55 
56 inline sal_Bool IsText( sal_Bool& bQuote, sal_Unicode c )
57 {
58     if ( c == '\'' )
59     {
60         bQuote = !bQuote;
61         return sal_True;
62     }
63     if ( bQuote )
64         return sal_True;
65     return IsText( c );
66 }
67 
68 ScRefFinder::ScRefFinder(const String& rFormula, ScDocument* pDocument,
69              formula::FormulaGrammar::AddressConvention eConvP) :
70     aFormula( rFormula ),
71     eConv( eConvP ),
72     pDoc( pDocument )
73 {
74     nSelStart = nSelEnd = nFound = 0;
75 }
76 
77 ScRefFinder::~ScRefFinder()
78 {
79 }
80 
81 sal_uInt16 lcl_NextFlags( sal_uInt16 nOld )
82 {
83     sal_uInt16 nNew = nOld & 7;                 // die drei Abs-Flags
84     nNew = ( nNew - 1 ) & 7;                // weiterzaehlen
85 
86     if (!(nOld & SCA_TAB_3D))
87         nNew &= ~SCA_TAB_ABSOLUTE;          // nicht 3D -> nie absolut!
88 
89     return ( nOld & 0xfff8 ) | nNew;
90 }
91 
92 void ScRefFinder::ToggleRel( xub_StrLen nStartPos, xub_StrLen nEndPos )
93 {
94     xub_StrLen nLen = aFormula.Len();
95     if (!nLen)
96         return;
97     const sal_Unicode* pSource = aFormula.GetBuffer();      // fuer schnellen Zugriff
98 
99     //  Selektion erweitern, und statt Selektion Start- und Endindex
100 
101     if ( nEndPos < nStartPos )
102     {
103         xub_StrLen nTemp = nStartPos; nStartPos = nEndPos; nEndPos = nTemp;
104     }
105     while (nStartPos > 0 && IsText(pSource[nStartPos - 1]) )
106         --nStartPos;
107     if (nEndPos)
108         --nEndPos;
109     while (nEndPos+1 < nLen && IsText(pSource[nEndPos + 1]) )
110         ++nEndPos;
111 
112     String aResult;
113     String aExpr;
114     String aSep;
115     ScAddress aAddr;
116     nFound = 0;
117 
118     xub_StrLen nLoopStart = nStartPos;
119     while ( nLoopStart <= nEndPos )
120     {
121         //  Formel zerlegen
122 
123         xub_StrLen nEStart = nLoopStart;
124         while ( nEStart <= nEndPos && !IsText(pSource[nEStart]) )
125             ++nEStart;
126 
127         sal_Bool bQuote = sal_False;
128         xub_StrLen nEEnd = nEStart;
129         while ( nEEnd <= nEndPos && IsText(bQuote,pSource[nEEnd]) )
130             ++nEEnd;
131 
132         aSep  = aFormula.Copy( nLoopStart, nEStart-nLoopStart );
133         aExpr = aFormula.Copy( nEStart, nEEnd-nEStart );
134 
135         //  Test, ob aExpr eine Referenz ist
136 
137         sal_uInt16 nResult = aAddr.Parse( aExpr, pDoc, pDoc->GetAddressConvention() );
138         if ( nResult & SCA_VALID )
139         {
140             sal_uInt16 nFlags = lcl_NextFlags( nResult );
141             aAddr.Format( aExpr, nFlags, pDoc, pDoc->GetAddressConvention() );
142 
143             xub_StrLen nAbsStart = nStartPos+aResult.Len()+aSep.Len();
144 
145             if (!nFound)                            // erste Referenz ?
146                 nSelStart = nAbsStart;
147             nSelEnd = nAbsStart+aExpr.Len();        // Selektion, keine Indizes
148             ++nFound;
149         }
150 
151         //  zusammenbauen
152 
153         aResult += aSep;
154         aResult += aExpr;
155 
156         nLoopStart = nEEnd;
157     }
158 
159     String aTotal = aFormula.Copy( 0, nStartPos );
160     aTotal += aResult;
161     aTotal += aFormula.Copy( nEndPos+1 );
162 
163     aFormula = aTotal;
164 }
165 
166 
167 
168 
169