sc/inc/compiler.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   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 #ifndef INCLUDED_SC_INC_COMPILER_HXX
  21 #define INCLUDED_SC_INC_COMPILER_HXX
  22
  23 #include <string.h>
  24
  25 #include <tools/mempool.hxx>
  26 #include "scdllapi.h"
  27 #include "global.hxx"
  28 #include "refdata.hxx"
  29 #include "token.hxx"
  30 #include <formula/token.hxx>
  31 #include <formula/grammar.hxx>
  32 #include <unotools/charclass.hxx>
  33 #include <rtl/ustrbuf.hxx>
  34 #include <com/sun/star/sheet/ExternalLinkInfo.hpp>
  35 #include <vector>
  36
  37 #include <formula/FormulaCompiler.hxx>
  38 #include <o3tl/typed_flags_set.hxx>
  39
  40 // constants and data types also for external modules (ScInterpreter et al)
  41
  42 #define MAXSTRLEN    1024   /* maximum length of input string of one symbol */
  43
  44 // flag values of CharTable
  45 enum class ScCharFlags : sal_uInt32 {
  46     NONE            = 0x00000000,
  47     Illegal         = 0x00000000,
  48     Char            = 0x00000001,
  49     CharBool        = 0x00000002,
  50     CharWord        = 0x00000004,
  51     CharValue       = 0x00000008,
  52     CharString      = 0x00000010,
  53     CharDontCare    = 0x00000020,
  54     Bool            = 0x00000040,
  55     Word            = 0x00000080,
  56     WordSep         = 0x00000100,
  57     Value           = 0x00000200,
  58     ValueSep        = 0x00000400,
  59     ValueExp        = 0x00000800,
  60     ValueSign       = 0x00001000,
  61     ValueValue      = 0x00002000,
  62     StringSep       = 0x00004000,
  63     NameSep         = 0x00008000,  // there can be only one! '\''
  64     CharIdent       = 0x00010000,  // identifier (built-in function) or reference start
  65     Ident           = 0x00020000,  // identifier or reference continuation
  66     OdfLBracket     = 0x00040000,  // ODF '[' reference bracket
  67     OdfRBracket     = 0x00080000,  // ODF ']' reference bracket
  68     OdfLabelOp      = 0x00100000,  // ODF '!!' automatic intersection of labels
  69     OdfNameMarker   = 0x00200000,  // ODF '$$' marker that starts a defined (range) name
  70     CharName        = 0x00400000,  // start character of a defined name
  71     Name            = 0x00800000,  // continuation character of a defined name
  72     CharErrConst    = 0x01000000,  // start character of an error constant ('#')
  73 };
  74 namespace o3tl {
  75     template<> struct typed_flags<ScCharFlags> : is_typed_flags<ScCharFlags, 0x01ffffff> {};
  76 }
  77
  78 #define SC_COMPILER_FILE_TAB_SEP      '#'         // 'Doc'#Tab
  79
  80 class ScDocument;
  81 class ScMatrix;
  82 class ScRangeData;
  83 class ScExternalRefManager;
  84 class ScTokenArray;
  85
  86 namespace sc {
  87
  88 class CompileFormulaContext;
  89
  90 }
  91
  92 // constants and data types internal to compiler
  93
  94 struct ScRawToken
  95 {
  96     friend class ScCompiler;
  97     // Friends that use a temporary ScRawToken on the stack (and therefore need
  98     // the private dtor) and know what they're doing..
  99     friend class ScTokenArray;
 100 protected:
 101     OpCode              eOp;
 102     formula::StackVar   eType;  // type of data; this determines how the unions are used
 103 public:
 104     union {
 105         double       nValue;
 106         struct {
 107             sal_uInt8   cByte;
 108             bool        bIsInForceArray;
 109         } sbyte;
 110         ScComplexRefData aRef;
 111         struct {
 112             sal_uInt16          nFileId;
 113             sal_Unicode         cTabName[MAXSTRLEN+1];
 114             ScComplexRefData    aRef;
 115         } extref;
 116         struct {
 117             sal_uInt16  nFileId;
 118             sal_Unicode cName[MAXSTRLEN+1];
 119         } extname;
 120         struct {
 121             sal_Int16   nSheet;
 122             sal_uInt16  nIndex;
 123         } name;
 124         struct {
 125             sal_uInt16              nIndex;
 126             ScTableRefToken::Item   eItem;
 127         } table;
 128         struct {
 129             rtl_uString* mpData;
 130             rtl_uString* mpDataIgnoreCase;
 131         } sharedstring;
 132         ScMatrix*    pMat;
 133         FormulaError nError;
 134         sal_Unicode  cStr[ MAXSTRLEN+1 ];   // string (up to 255 characters + 0)
 135         short        nJump[ FORMULA_MAXJUMPCOUNT + 1 ];     // If/Chose token
 136     };
 137
 138     // coverity[uninit_member] - members deliberately not initialized
 139     ScRawToken() {}
 140 private:
 141                 ~ScRawToken() {}                //! only delete via Delete()
 142 public:
 143                 DECL_FIXEDMEMPOOL_NEWDEL( ScRawToken );
 144     formula::StackVar    GetType()   const       { return eType; }
 145     OpCode      GetOpCode() const       { return eOp; }
 146     void        NewOpCode( OpCode e )   { eOp = e; }
 147
 148     // Use these methods only on tokens that are not part of a token array,
 149     // since the reference count is cleared!
 150     void SetOpCode( OpCode eCode );
 151     void SetString( rtl_uString* pData, rtl_uString* pDataIgoreCase );
 152     void SetSingleReference( const ScSingleRefData& rRef );
 153     void SetDoubleReference( const ScComplexRefData& rRef );
 154     void SetDouble( double fVal );
 155     void SetErrorConstant( FormulaError nErr );
 156
 157     // These methods are ok to use, reference count not cleared.
 158     void SetName(sal_Int16 nSheet, sal_uInt16 nIndex);
 159     void SetExternalSingleRef( sal_uInt16 nFileId, const OUString& rTabName, const ScSingleRefData& rRef );
 160     void SetExternalDoubleRef( sal_uInt16 nFileId, const OUString& rTabName, const ScComplexRefData& rRef );
 161     void SetExternalName( sal_uInt16 nFileId, const OUString& rName );
 162     void SetExternal(const sal_Unicode* pStr);
 163
 164     /** If the token is a non-external reference, determine if the reference is
 165         valid. If the token is an external reference, return true. Else return
 166         false. Used only in ScCompiler::NextNewToken() to preserve non-existing
 167         sheet names in otherwise valid references.
 168      */
 169     bool IsValidReference() const;
 170
 171     formula::FormulaToken* CreateToken() const;   // create typified token
 172
 173     static sal_Int32 GetStrLen( const sal_Unicode* pStr ); // as long as a "string" is an array
 174 };
 175
 176 class SC_DLLPUBLIC ScCompiler : public formula::FormulaCompiler
 177 {
 178 public:
 179
 180     enum ExtendedErrorDetection
 181     {
 182         EXTENDED_ERROR_DETECTION_NONE = 0,      // no error on unknown symbols, default (interpreter handles it)
 183         EXTENDED_ERROR_DETECTION_NAME_BREAK,    // name error on unknown symbols and break, pCode incomplete
 184         EXTENDED_ERROR_DETECTION_NAME_NO_BREAK  // name error on unknown symbols, don't break, continue
 185     };
 186
 187     struct Convention
 188     {
 189         const formula::FormulaGrammar::AddressConvention meConv;
 190
 191         Convention( formula::FormulaGrammar::AddressConvention eConvP );
 192         virtual ~Convention();
 193
 194         virtual void makeRefStr(
 195             OUStringBuffer& rBuffer,
 196             formula::FormulaGrammar::Grammar eGram,
 197             const ScAddress& rPos,
 198             const OUString& rErrRef, const std::vector<OUString>& rTabNames,
 199             const ScComplexRefData& rRef, bool bSingleRef, bool bFromRangeName ) const = 0;
 200
 201         virtual css::i18n::ParseResult
 202                     parseAnyToken( const OUString& rFormula,
 203                                    sal_Int32 nSrcPos,
 204                                    const CharClass* pCharClass) const = 0;
 205
 206         /**
 207          * Parse the symbol string and pick up the file name and the external
 208          * range name.
 209          *
 210          * @return true on successful parse, or false otherwise.
 211          */
 212         virtual bool parseExternalName( const OUString& rSymbol, OUString& rFile, OUString& rName,
 213                 const ScDocument* pDoc,
 214                 const css::uno::Sequence< css::sheet::ExternalLinkInfo>* pExternalLinks ) const = 0;
 215
 216         virtual OUString makeExternalNameStr( sal_uInt16 nFileId, const OUString& rFile,
 217                 const OUString& rName ) const = 0;
 218
 219         virtual void makeExternalRefStr(
 220             OUStringBuffer& rBuffer, const ScAddress& rPos, sal_uInt16 nFileId, const OUString& rFileName,
 221             const OUString& rTabName, const ScSingleRefData& rRef ) const = 0;
 222
 223         virtual void makeExternalRefStr(
 224             OUStringBuffer& rBuffer, const ScAddress& rPos,
 225             sal_uInt16 nFileId, const OUString& rFileName, const std::vector<OUString>& rTabNames,
 226             const OUString& rTabName, const ScComplexRefData& rRef ) const = 0;
 227
 228         enum SpecialSymbolType
 229         {
 230             /**
 231              * Character between sheet name and address.  In OOO A1 this is
 232              * '.', while XL A1 and XL R1C1 this is '!'.
 233              */
 234             SHEET_SEPARATOR,
 235
 236             /**
 237              * In OOO A1, a sheet name may be prefixed with '$' to indicate an
 238              * absolute sheet position.
 239              */
 240             ABS_SHEET_PREFIX
 241         };
 242         virtual sal_Unicode getSpecialSymbol( SpecialSymbolType eSymType ) const = 0;
 243
 244         virtual ScCharFlags getCharTableFlags( sal_Unicode c, sal_Unicode cLast ) const = 0;
 245
 246     protected:
 247         const ScCharFlags* mpCharTable;
 248     };
 249     friend struct Convention;
 250
 251 private:
 252
 253     static CharClass            *pCharClassEnglish;                      // character classification for en_US locale
 254     static const Convention     *pConventions[ formula::FormulaGrammar::CONV_LAST ];
 255
 256     static const struct AddInMap
 257     {
 258         const char* pODFF;
 259         const char* pEnglish;
 260         const char* pOriginal;              // programmatical name
 261         const char* pUpper;                 // upper case programmatical name
 262     } g_aAddInMap[];
 263     static size_t GetAddInMapCount();
 264
 265     ScDocument* pDoc;
 266     ScAddress   aPos;
 267
 268     SvNumberFormatter* mpFormatter;
 269
 270     SCTAB       mnCurrentSheetTab;      // indicates current sheet number parsed so far
 271     sal_Int32   mnCurrentSheetEndPos;   // position after current sheet name if parsed
 272
 273     // For CONV_XL_OOX, may be set via API by MOOXML filter.
 274     css::uno::Sequence<css::sheet::ExternalLinkInfo> maExternalLinks;
 275
 276     sal_Unicode cSymbol[MAXSTRLEN];                 // current Symbol
 277     OUString    aFormula;                           // formula source code
 278     sal_Int32   nSrcPos;                            // tokenizer position (source code)
 279     mutable ScRawToken maRawToken;
 280
 281     const CharClass*    pCharClass;         // which character classification is used for parseAnyToken
 282     sal_uInt16      mnPredetectedReference;     // reference when reading ODF, 0 (none), 1 (single) or 2 (double)
 283     SCsTAB      nMaxTab;                    // last sheet in document
 284     sal_Int32   mnRangeOpPosInSymbol;       // if and where a range operator is in symbol
 285     const Convention *pConv;
 286     ExtendedErrorDetection  meExtendedErrorDetection;
 287     bool        mbCloseBrackets;            // whether to close open brackets automatically, default TRUE
 288     bool        mbRewind;                   // whether symbol is to be rewound to some step during lexical analysis
 289     std::vector<sal_uInt16> maExternalFiles;
 290
 291     std::vector<OUString> maTabNames;                /// sheet names mangled for the current grammar for output
 292     std::vector<OUString> &GetSetupTabNames() const; /// get or setup tab names for the current grammar
 293
 294     struct TableRefEntry
 295     {
 296         ScTokenRef  mxToken;
 297         sal_uInt16  mnLevel;
 298         TableRefEntry( formula::FormulaToken* p ) : mxToken(p), mnLevel(0) {}
 299     };
 300     std::vector<TableRefEntry> maTableRefs;     /// "stack" of currently active ocTableRef tokens
 301
 302     bool   NextNewToken(bool bInArray);
 303
 304     virtual void SetError(FormulaError nError) override;
 305     sal_Int32 NextSymbol(bool bInArray);
 306     bool IsValue( const OUString& );
 307     bool IsOpCode( const OUString&, bool bInArray );
 308     bool IsOpCode2( const OUString& );
 309     bool IsString();
 310     bool IsReference( const OUString& rSymbol, const OUString* pErrRef = nullptr );
 311     bool IsSingleReference( const OUString& rSymbol, const OUString* pErrRef = nullptr );
 312     bool IsDoubleReference( const OUString& rSymbol, const OUString* pErrRef = nullptr );
 313     bool IsPredetectedReference( const OUString& rSymbol );
 314     bool IsPredetectedErrRefReference( const OUString& rName, const OUString* pErrRef );
 315     bool IsMacro( const OUString& );
 316     bool IsNamedRange( const OUString& );
 317     bool IsExternalNamedRange( const OUString& rSymbol, bool& rbInvalidExternalNameRange );
 318     bool IsDBRange( const OUString& );
 319     bool IsColRowName( const OUString& );
 320     bool IsBoolean( const OUString& );
 321     void AutoCorrectParsedSymbol();
 322
 323     void AdjustSheetLocalNameRelReferences( SCTAB nDelta );
 324     void SetRelNameReference();
 325
 326     /** Obtain range data for ocName token, global or sheet local.
 327
 328         Prerequisite: rToken is a FormulaIndexToken so IsGlobal() and
 329         GetIndex() can be called on it. We don't check with RTTI.
 330      */
 331     ScRangeData* GetRangeData( const formula::FormulaToken& pToken ) const;
 332
 333     static void InitCharClassEnglish();
 334
 335 public:
 336     ScCompiler( sc::CompileFormulaContext& rCxt, const ScAddress& rPos );
 337
 338     ScCompiler( ScDocument* pDocument, const ScAddress&);
 339
 340     ScCompiler( sc::CompileFormulaContext& rCxt, const ScAddress& rPos, ScTokenArray& rArr );
 341
 342     ScCompiler( ScDocument* pDocument, const ScAddress&,ScTokenArray& rArr);
 343
 344     virtual ~ScCompiler() override;
 345
 346 public:
 347     static void DeInit();               /// all
 348
 349     // for ScAddress::Format()
 350     static void CheckTabQuotes( OUString& aTabName,
 351                                 const formula::FormulaGrammar::AddressConvention eConv = formula::FormulaGrammar::CONV_OOO );
 352
 353     /** Analyzes a string for a 'Doc'#Tab construct, or 'Do''c'#Tab etc..
 354
 355         @returns the position of the unquoted # hash mark in 'Doc'#Tab, or
 356                  -1 if none. */
 357     static sal_Int32 GetDocTabPos( const OUString& rString );
 358
 359     static bool EnQuote( OUString& rStr );
 360     sal_Unicode GetNativeAddressSymbol( Convention::SpecialSymbolType eType ) const;
 361
 362     // Check if it is a valid english function name
 363     bool IsEnglishSymbol( const OUString& rName );
 364
 365     bool IsErrorConstant( const OUString& ) const;
 366     bool IsTableRefItem( const OUString& ) const;
 367     bool IsTableRefColumn( const OUString& ) const;
 368
 369     /** Calls GetToken() if PeekNextNoSpaces() is of given OpCode. */
 370     bool GetTokenIfOpCode( OpCode eOp );
 371
 372     /**
 373      * When auto correction is set, the jump command reorder must be enabled.
 374      */
 375     void SetAutoCorrection( bool bVal );
 376     void            SetCloseBrackets( bool bVal ) { mbCloseBrackets = bVal; }
 377     void            SetRefConvention( const Convention *pConvP );
 378     void            SetRefConvention( const formula::FormulaGrammar::AddressConvention eConv );
 379
 380     static const Convention* GetRefConvention( formula::FormulaGrammar::AddressConvention eConv );
 381
 382     /// Set symbol map if not empty.
 383     void            SetFormulaLanguage( const OpCodeMapPtr & xMap );
 384
 385     void            SetGrammar( const formula::FormulaGrammar::Grammar eGrammar );
 386
 387     void SetNumberFormatter( SvNumberFormatter* pFormatter );
 388
 389 private:
 390     /** Set grammar and reference convention from within SetFormulaLanguage()
 391         or SetGrammar().
 392
 393         @param eNewGrammar
 394             The new grammar to be set and the associated reference convention.
 395
 396         @param eOldGrammar
 397             The previous grammar that was active before SetFormulaLanguage().
 398      */
 399     void            SetGrammarAndRefConvention(
 400                         const formula::FormulaGrammar::Grammar eNewGrammar,
 401                         const formula::FormulaGrammar::Grammar eOldGrammar );
 402 public:
 403
 404     /// Set external link info for ScAddress::CONV_XL_OOX.
 405     void SetExternalLinks(
 406         const css::uno::Sequence<
 407             css::sheet::ExternalLinkInfo>& rLinks )
 408     {
 409         maExternalLinks = rLinks;
 410     }
 411
 412     void            CreateStringFromXMLTokenArray( OUString& rFormula, OUString& rFormulaNmsp );
 413
 414     void            SetExtendedErrorDetection( ExtendedErrorDetection eVal ) { meExtendedErrorDetection = eVal; }
 415
 416     bool            IsCorrected() { return bCorrected; }
 417     const OUString& GetCorrectedFormula() { return aCorrectedFormula; }
 418
 419     /**
 420      * Tokenize formula expression string into an array of tokens.
 421      *
 422      * @param rFormula formula expression to tokenize.
 423      *
 424      * @return heap allocated token array object. The caller <i>must</i>
 425      *         manage the life cycle of this object.
 426      */
 427     ScTokenArray* CompileString( const OUString& rFormula );
 428     ScTokenArray* CompileString( const OUString& rFormula, const OUString& rFormulaNmsp );
 429     const ScAddress& GetPos() const { return aPos; }
 430
 431     void MoveRelWrap( SCCOL nMaxCol, SCROW nMaxRow );
 432     static void MoveRelWrap( ScTokenArray& rArr, ScDocument* pDoc, const ScAddress& rPos,
 433                              SCCOL nMaxCol, SCROW nMaxRow );
 434
 435     /** If the character is allowed as tested by nFlags (SC_COMPILER_C_...
 436         bits) for all known address conventions. If more than one bit is given
 437         in nFlags, all bits must match. */
 438     static bool IsCharFlagAllConventions(
 439         OUString const & rStr, sal_Int32 nPos, ScCharFlags nFlags );
 440
 441 private:
 442     // FormulaCompiler
 443     virtual OUString FindAddInFunction( const OUString& rUpperName, bool bLocalFirst ) const override;
 444     virtual void fillFromAddInCollectionUpperName( const NonConstOpCodeMapPtr& xMap ) const override;
 445     virtual void fillFromAddInCollectionEnglishName( const NonConstOpCodeMapPtr& xMap ) const override;
 446     virtual void fillFromAddInMap( const NonConstOpCodeMapPtr& xMap, formula::FormulaGrammar::Grammar _eGrammar ) const override;
 447     virtual void fillAddInToken(::std::vector< css::sheet::FormulaOpCodeMapEntry >& _rVec,bool _bIsEnglish) const override;
 448
 449     virtual bool HandleExternalReference(const formula::FormulaToken& _aToken) override;
 450     virtual bool HandleRange() override;
 451     virtual bool HandleColRowName() override;
 452     virtual bool HandleDbData() override;
 453     virtual bool HandleTableRef() override;
 454
 455     virtual formula::FormulaTokenRef ExtendRangeReference( formula::FormulaToken & rTok1, formula::FormulaToken & rTok2 ) override;
 456     virtual void CreateStringFromExternal( OUStringBuffer& rBuffer, const formula::FormulaToken* pToken ) const override;
 457     virtual void CreateStringFromSingleRef( OUStringBuffer& rBuffer, const formula::FormulaToken* pToken ) const override;
 458     virtual void CreateStringFromDoubleRef( OUStringBuffer& rBuffer, const formula::FormulaToken* pToken ) const override;
 459     virtual void CreateStringFromMatrix( OUStringBuffer& rBuffer, const formula::FormulaToken* pToken ) const override;
 460     virtual void CreateStringFromIndex( OUStringBuffer& rBuffer, const formula::FormulaToken* pToken ) const override;
 461     virtual void LocalizeString( OUString& rName ) const override;   // modify rName - input: exact name
 462
 463     virtual bool IsForceArrayParameter( const formula::FormulaToken* pToken, sal_uInt16 nParam ) const override;
 464
 465     /// Access the CharTable flags
 466     inline ScCharFlags GetCharTableFlags( sal_Unicode c, sal_Unicode cLast )
 467         { return c < 128 ? pConv->getCharTableFlags(c, cLast) : ScCharFlags::NONE; }
 468 };
 469
 470 #endif
 471
 472 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */