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Avoid potential negative array index access to cached text.
[LibreOffice.git] / sc / source / core / data / global2.cxx
blob6f8352fd18623b945e5400261757f0da9586c0cb
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
20 #include <sfx2/docfile.hxx>
21 #include <sfx2/objsh.hxx>
22 #include <unotools/configmgr.hxx>
23 #include <unotools/pathoptions.hxx>
24 #include <tools/urlobj.hxx>
25 #include <svl/numformat.hxx>
26 #include <svl/zforlist.hxx>
27 #include <formula/errorcodes.hxx>
28 #include <sal/log.hxx>
29 #include <rtl/character.hxx>
30 #include <rtl/math.hxx>
31 #include <o3tl/string_view.hxx>
32
33 #include <global.hxx>
34 #include <rangeutl.hxx>
35 #include <compiler.hxx>
36 #include <paramisc.hxx>
37 #include <calcconfig.hxx>
38
39 // struct ScImportParam:
40
41 ScImportParam::ScImportParam() :
42 nCol1(0),
43 nRow1(0),
44 nCol2(0),
45 nRow2(0),
46 bImport(false),
47 bNative(false),
48 bSql(true),
49 nType(ScDbTable)
50 {
51 }
52
53 ScImportParam::ScImportParam( const ScImportParam& r ) :
54 nCol1 (r.nCol1),
55 nRow1 (r.nRow1),
56 nCol2 (r.nCol2),
57 nRow2 (r.nRow2),
58 bImport (r.bImport),
59 aDBName (r.aDBName),
60 aStatement (r.aStatement),
61 bNative (r.bNative),
62 bSql (r.bSql),
63 nType (r.nType)
64 {
65 }
66
67 ScImportParam::~ScImportParam()
68 {
69 }
70
71 ScImportParam& ScImportParam::operator=( const ScImportParam& r )
72 {
73 nCol1 = r.nCol1;
74 nRow1 = r.nRow1;
75 nCol2 = r.nCol2;
76 nRow2 = r.nRow2;
77 bImport = r.bImport;
78 aDBName = r.aDBName;
79 aStatement = r.aStatement;
80 bNative = r.bNative;
81 bSql = r.bSql;
82 nType = r.nType;
83
84 return *this;
85 }
86
87 bool ScImportParam::operator==( const ScImportParam& rOther ) const
88 {
89 return( nCol1 == rOther.nCol1 &&
90 nRow1 == rOther.nRow1 &&
91 nCol2 == rOther.nCol2 &&
92 nRow2 == rOther.nRow2 &&
93 bImport == rOther.bImport &&
94 aDBName == rOther.aDBName &&
95 aStatement == rOther.aStatement &&
96 bNative == rOther.bNative &&
97 bSql == rOther.bSql &&
98 nType == rOther.nType );
99
100 //TODO: are nQuerySh and pConnection equal ?
101 }
102
103 // struct ScConsolidateParam:
104
105 ScConsolidateParam::ScConsolidateParam()
106 {
107 Clear();
108 }
109
110 ScConsolidateParam::ScConsolidateParam( const ScConsolidateParam& r )
111 {
112 operator=(r);
113 }
114
115 ScConsolidateParam::~ScConsolidateParam()
116 {
117 }
118
119 void ScConsolidateParam::ClearDataAreas()
120 {
121 pDataAreas.reset();
122 nDataAreaCount = 0;
123 }
124
125 void ScConsolidateParam::Clear()
126 {
127 ClearDataAreas();
128
129 nCol = 0;
130 nRow = 0;
131 nTab = 0;
132 bByCol = bByRow = bReferenceData = false;
133 eFunction = SUBTOTAL_FUNC_SUM;
134 }
135
136 ScConsolidateParam& ScConsolidateParam::operator=( const ScConsolidateParam& r )
137 {
138 if (this != &r)
139 {
140 nCol = r.nCol;
141 nRow = r.nRow;
142 nTab = r.nTab;
143 bByCol = r.bByCol;
144 bByRow = r.bByRow;
145 bReferenceData = r.bReferenceData;
146 eFunction = r.eFunction;
147 nDataAreaCount = r.nDataAreaCount;
148 if ( r.nDataAreaCount > 0 )
149 {
150 nDataAreaCount = r.nDataAreaCount;
151 pDataAreas.reset( new ScArea[nDataAreaCount] );
152 for ( sal_uInt16 i=0; i<nDataAreaCount; i++ )
153 pDataAreas[i] = r.pDataAreas[i];
154 }
155 else
156 pDataAreas.reset();
157 }
158 return *this;
159 }
160
161 bool ScConsolidateParam::operator==( const ScConsolidateParam& r ) const
162 {
163 bool bEqual = (nCol == r.nCol)
164 && (nRow == r.nRow)
165 && (nTab == r.nTab)
166 && (bByCol == r.bByCol)
167 && (bByRow == r.bByRow)
168 && (bReferenceData == r.bReferenceData)
169 && (nDataAreaCount == r.nDataAreaCount)
170 && (eFunction == r.eFunction);
171
172 if ( nDataAreaCount == 0 )
173 bEqual = bEqual && (pDataAreas == nullptr) && (r.pDataAreas == nullptr);
174 else
175 bEqual = bEqual && (pDataAreas != nullptr) && (r.pDataAreas != nullptr);
176
177 if ( bEqual && (nDataAreaCount > 0) )
178 for ( sal_uInt16 i=0; i<nDataAreaCount && bEqual; i++ )
179 bEqual = pDataAreas[i] == r.pDataAreas[i];
180
181 return bEqual;
182 }
183
184 void ScConsolidateParam::SetAreas( std::unique_ptr<ScArea[]> pAreas, sal_uInt16 nCount )
185 {
186 pDataAreas = std::move(pAreas);
187 nDataAreaCount = nCount;
188 }
189
190 // struct ScSolveParam
191
192 ScSolveParam::ScSolveParam()
193 {
194 }
195
196 ScSolveParam::ScSolveParam( const ScSolveParam& r )
197 : aRefFormulaCell ( r.aRefFormulaCell ),
198 aRefVariableCell( r.aRefVariableCell ),
199 pStrTargetVal ( r.pStrTargetVal )
200 {
201 }
202
203 ScSolveParam::ScSolveParam( const ScAddress& rFormulaCell,
204 const ScAddress& rVariableCell,
205 const OUString& rTargetValStr )
206 : aRefFormulaCell ( rFormulaCell ),
207 aRefVariableCell( rVariableCell ),
208 pStrTargetVal ( rTargetValStr )
209 {
210 }
211
212 ScSolveParam::~ScSolveParam()
213 {
214 }
215
216 ScSolveParam& ScSolveParam::operator=( const ScSolveParam& r )
217 {
218 aRefFormulaCell = r.aRefFormulaCell;
219 aRefVariableCell = r.aRefVariableCell;
220 pStrTargetVal = r.pStrTargetVal;
221 return *this;
222 }
223
224 bool ScSolveParam::operator==( const ScSolveParam& r ) const
225 {
226 bool bEqual = (aRefFormulaCell == r.aRefFormulaCell)
227 && (aRefVariableCell == r.aRefVariableCell);
228
229 if ( bEqual )
230 {
231 if ( !pStrTargetVal && !r.pStrTargetVal )
232 bEqual = true;
233 else if ( !pStrTargetVal || !r.pStrTargetVal )
234 bEqual = false;
235 else
236 bEqual = ( *pStrTargetVal == *(r.pStrTargetVal) );
237 }
238
239 return bEqual;
240 }
241
242 // struct ScTabOpParam
243
244 ScTabOpParam::ScTabOpParam() : meMode(Column) {}
245
246 ScTabOpParam::ScTabOpParam( const ScTabOpParam& r )
247 : aRefFormulaCell ( r.aRefFormulaCell ),
248 aRefFormulaEnd ( r.aRefFormulaEnd ),
249 aRefRowCell ( r.aRefRowCell ),
250 aRefColCell ( r.aRefColCell ),
251 meMode(r.meMode)
252 {
253 }
254
255 ScTabOpParam::ScTabOpParam( const ScRefAddress& rFormulaCell,
256 const ScRefAddress& rFormulaEnd,
257 const ScRefAddress& rRowCell,
258 const ScRefAddress& rColCell,
259 Mode eMode )
260 : aRefFormulaCell ( rFormulaCell ),
261 aRefFormulaEnd ( rFormulaEnd ),
262 aRefRowCell ( rRowCell ),
263 aRefColCell ( rColCell ),
264 meMode(eMode)
265 {
266 }
267
268 ScTabOpParam& ScTabOpParam::operator=( const ScTabOpParam& r )
269 {
270 aRefFormulaCell = r.aRefFormulaCell;
271 aRefFormulaEnd = r.aRefFormulaEnd;
272 aRefRowCell = r.aRefRowCell;
273 aRefColCell = r.aRefColCell;
274 meMode = r.meMode;
275 return *this;
276 }
277
278 bool ScTabOpParam::operator==( const ScTabOpParam& r ) const
279 {
280 return ( (aRefFormulaCell == r.aRefFormulaCell)
281 && (aRefFormulaEnd == r.aRefFormulaEnd)
282 && (aRefRowCell == r.aRefRowCell)
283 && (aRefColCell == r.aRefColCell)
284 && (meMode == r.meMode) );
285 }
286
287 OUString ScGlobal::GetAbsDocName( const OUString& rFileName,
288 const SfxObjectShell* pShell )
289 {
290 OUString aAbsName;
291 if (!pShell || !pShell->HasName())
292 { // maybe relative to document path working directory
293 INetURLObject aObj;
294 if (!utl::ConfigManager::IsFuzzing())
295 {
296 aObj.SetSmartURL(SvtPathOptions().GetWorkPath());
297 aObj.setFinalSlash(); // it IS a path
298 }
299 else
300 aObj.SetSmartURL(u"file:///tmp/document");
301 bool bWasAbs = true;
302 aAbsName = aObj.smartRel2Abs( rFileName, bWasAbs ).GetMainURL(INetURLObject::DecodeMechanism::NONE);
303 // returned string must be encoded because it's used directly to create SfxMedium
304 }
305 else
306 {
307 const SfxMedium* pMedium = pShell->GetMedium();
308 if ( pMedium )
309 {
310 bool bWasAbs = true;
311 aAbsName = pMedium->GetURLObject().smartRel2Abs( rFileName, bWasAbs ).GetMainURL(INetURLObject::DecodeMechanism::NONE);
312 }
313 else
314 { // This can't happen, but ...
315 // just to be sure to have the same encoding
316 INetURLObject aObj;
317 aObj.SetSmartURL( aAbsName );
318 aAbsName = aObj.GetMainURL(INetURLObject::DecodeMechanism::NONE);
319 }
320 }
321 return aAbsName;
322 }
323
324 OUString ScGlobal::GetDocTabName( std::u16string_view rFileName,
325 std::u16string_view rTabName )
326 {
327 OUString aDocTab(rFileName);
328 // "'Doc'#Tab"
329 aDocTab = "'" + aDocTab.replaceAll(u"'", u"\\'") + "'" + OUStringChar(SC_COMPILER_FILE_TAB_SEP) + rTabName;
330 return aDocTab;
331 }
332
333 namespace
334 {
335 bool isEmptyString( const OUString& rStr )
336 {
337 if (rStr.isEmpty())
338 return true;
339 else if (rStr[0] == ' ')
340 {
341 const sal_Unicode* p = rStr.getStr() + 1;
342 const sal_Unicode* const pStop = p - 1 + rStr.getLength();
343 while (p < pStop && *p == ' ')
344 ++p;
345 if (p == pStop)
346 return true;
347 }
348 return false;
349 }
350 }
351
352 double ScGlobal::ConvertStringToValue( const OUString& rStr, const ScCalcConfig& rConfig,
353 FormulaError & rError, FormulaError nStringNoValueError,
354 SvNumberFormatter* pFormatter, SvNumFormatType & rCurFmtType )
355 {
356 // We keep ScCalcConfig::StringConversion::LOCALE default until
357 // we provide a friendly way to convert string numbers into numbers in the UI.
358
359 double fValue = 0.0;
360 if (nStringNoValueError == FormulaError::CellNoValue)
361 {
362 // Requested that all strings result in 0, error handled by caller.
363 rError = nStringNoValueError;
364 return fValue;
365 }
366
367 switch (rConfig.meStringConversion)
368 {
369 case ScCalcConfig::StringConversion::ILLEGAL:
370 rError = nStringNoValueError;
371 return fValue;
372 case ScCalcConfig::StringConversion::ZERO:
373 return fValue;
374 case ScCalcConfig::StringConversion::LOCALE:
375 {
376 if (rConfig.mbEmptyStringAsZero)
377 {
378 // The number scanner does not accept empty strings or strings
379 // containing only spaces, be on par in these cases with what was
380 // accepted in OOo and is in AOO (see also the
381 // StringConversion::UNAMBIGUOUS branch) and convert to 0 to prevent
382 // interoperability nightmares.
383
384 if (isEmptyString( rStr))
385 return fValue;
386 }
387
388 if (!pFormatter)
389 goto Label_fallback_to_unambiguous;
390
391 sal_uInt32 nFIndex = 0;
392 if (!pFormatter->IsNumberFormat(rStr, nFIndex, fValue))
393 {
394 rError = nStringNoValueError;
395 fValue = 0.0;
396 }
397 return fValue;
398 }
399 break;
400 case ScCalcConfig::StringConversion::UNAMBIGUOUS:
401 Label_fallback_to_unambiguous:
402 {
403 if (!rConfig.mbEmptyStringAsZero)
404 {
405 if (isEmptyString( rStr))
406 {
407 rError = nStringNoValueError;
408 return fValue;
409 }
410 }
411 }
412 // continue below, pulled from switch case for better readability
413 break;
414 }
415
416 rtl_math_ConversionStatus eStatus;
417 sal_Int32 nParseEnd;
418 // Decimal and group separator 0 => only integer and possibly exponent,
419 // stops at first non-digit non-sign.
420 fValue = ::rtl::math::stringToDouble( rStr, 0, 0, &eStatus, &nParseEnd);
421 sal_Int32 nLen = rStr.getLength();
422 if (eStatus == rtl_math_ConversionStatus_Ok && nParseEnd < nLen)
423 {
424 // Not at string end, check for trailing blanks or switch to date or
425 // time parsing or bail out.
426 const sal_Unicode* const pStart = rStr.getStr();
427 const sal_Unicode* p = pStart + nParseEnd;
428 const sal_Unicode* const pStop = pStart + nLen;
429 switch (*p++)
430 {
431 case ' ':
432 while (p < pStop && *p == ' ')
433 ++p;
434 if (p < pStop)
435 rError = nStringNoValueError;
436 break;
437 case '-':
438 case ':':
439 {
440 bool bDate = (*(p-1) == '-');
441 enum State { year = 0, month, day, hour, minute, second, fraction, done, blank, stop };
442 sal_Int32 nUnit[done] = {0,0,0,0,0,0,0};
443 const sal_Int32 nLimit[done] = {0,12,31,0,59,59,0};
444 State eState = (bDate ? month : minute);
445 rCurFmtType = (bDate ? SvNumFormatType::DATE : SvNumFormatType::TIME);
446 nUnit[eState-1] = o3tl::toInt32(rStr.subView( 0, nParseEnd));
447 const sal_Unicode* pLastStart = p;
448 // Ensure there's no preceding sign. Negative dates
449 // currently aren't handled correctly. Also discard
450 // +CCYY-MM-DD
451 p = pStart;
452 while (p < pStop && *p == ' ')
453 ++p;
454 if (p < pStop && !rtl::isAsciiDigit(*p))
455 rError = nStringNoValueError;
456 p = pLastStart;
457 while (p < pStop && rError == FormulaError::NONE && eState < blank)
458 {
459 if (eState == minute)
460 rCurFmtType |= SvNumFormatType::TIME;
461 if (rtl::isAsciiDigit(*p))
462 {
463 // Maximum 2 digits per unit, except fractions.
464 if (p - pLastStart >= 2 && eState != fraction)
465 rError = nStringNoValueError;
466 }
467 else if (p > pLastStart)
468 {
469 // We had at least one digit.
470 if (eState < done)
471 {
472 nUnit[eState] = o3tl::toInt32(rStr.subView( pLastStart - pStart, p - pLastStart));
473 if (nLimit[eState] && nLimit[eState] < nUnit[eState])
474 rError = nStringNoValueError;
475 }
476 pLastStart = p + 1; // hypothetical next start
477 // Delimiters must match, a trailing delimiter
478 // yields an invalid date/time.
479 switch (eState)
480 {
481 case month:
482 // Month must be followed by separator and
483 // day, no trailing blanks.
484 if (*p != '-' || (p+1 == pStop))
485 rError = nStringNoValueError;
486 break;
487 case day:
488 if ((*p != 'T' || (p+1 == pStop)) && *p != ' ')
489 rError = nStringNoValueError;
490 // Take one blank as a valid delimiter
491 // between date and time.
492 break;
493 case hour:
494 // Hour must be followed by separator and
495 // minute, no trailing blanks.
496 if (*p != ':' || (p+1 == pStop))
497 rError = nStringNoValueError;
498 break;
499 case minute:
500 if ((*p != ':' || (p+1 == pStop)) && *p != ' ')
501 rError = nStringNoValueError;
502 if (*p == ' ')
503 eState = done;
504 break;
505 case second:
506 if (((*p != ',' && *p != '.') || (p+1 == pStop)) && *p != ' ')
507 rError = nStringNoValueError;
508 if (*p == ' ')
509 eState = done;
510 break;
511 case fraction:
512 eState = done;
513 break;
514 default:
515 rError = nStringNoValueError;
516 break;
517 }
518 eState = static_cast<State>(eState + 1);
519 }
520 else
521 rError = nStringNoValueError;
522 ++p;
523 }
524 if (eState == blank)
525 {
526 while (p < pStop && *p == ' ')
527 ++p;
528 if (p < pStop)
529 rError = nStringNoValueError;
530 eState = stop;
531 }
532
533 // Month without day, or hour without minute.
534 if (eState == month || (eState == day && p <= pLastStart) ||
535 eState == hour || (eState == minute && p <= pLastStart))
536 rError = nStringNoValueError;
537
538 if (rError == FormulaError::NONE)
539 {
540 // Catch the very last unit at end of string.
541 if (p > pLastStart && eState < done)
542 {
543 nUnit[eState] = o3tl::toInt32(rStr.subView( pLastStart - pStart, p - pLastStart));
544 if (nLimit[eState] && nLimit[eState] < nUnit[eState])
545 rError = nStringNoValueError;
546 }
547 if (bDate && nUnit[hour] > 23)
548 rError = nStringNoValueError;
549 if (rError == FormulaError::NONE)
550 {
551 if (bDate && nUnit[day] == 0)
552 nUnit[day] = 1;
553 double fFraction = (nUnit[fraction] <= 0 ? 0.0 :
554 ::rtl::math::pow10Exp( nUnit[fraction],
555 static_cast<int>( -ceil( log10( static_cast<double>( nUnit[fraction]))))));
556 if (!bDate)
557 fValue = 0.0;
558 else
559 {
560 Date aDate(
561 sal::static_int_cast<sal_Int16>(nUnit[day]),
562 sal::static_int_cast<sal_Int16>(nUnit[month]),
563 sal::static_int_cast<sal_Int16>(nUnit[year]));
564 if (!aDate.IsValidDate())
565 rError = nStringNoValueError;
566 else
567 {
568 if (pFormatter)
569 fValue = aDate - pFormatter->GetNullDate();
570 else
571 {
572 SAL_WARN("sc.core","ScGlobal::ConvertStringToValue - fixed null date");
573 static Date aDefaultNullDate( 30, 12, 1899);
574 fValue = aDate - aDefaultNullDate;
575 }
576 }
577 }
578 fValue += ((nUnit[hour] * 3600) + (nUnit[minute] * 60) + nUnit[second] + fFraction) / 86400.0;
579 }
580 }
581 }
582 break;
583 default:
584 rError = nStringNoValueError;
585 }
586 if (rError != FormulaError::NONE)
587 fValue = 0.0;
588 }
589 return fValue;
590 }
591
592 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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