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| -rw-r--r-- | include/formula/grammar.hxx | 234 |
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diff --git a/include/formula/grammar.hxx b/include/formula/grammar.hxx new file mode 100644 index 000000000..5d7933dee --- /dev/null +++ b/include/formula/grammar.hxx @@ -0,0 +1,234 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_FORMULA_GRAMMAR_HXX +#define INCLUDED_FORMULA_GRAMMAR_HXX + +#include <com/sun/star/sheet/FormulaLanguage.hpp> +#include <formula/formuladllapi.h> +#include <sal/types.h> + +namespace formula +{ + +/** Grammars digested by ScCompiler. + */ +class FORMULA_DLLPUBLIC FormulaGrammar +{ +public: + enum AddressConvention{ + CONV_UNSPECIFIED = -1, /* useful when we want method to chose, must be first */ + + /* elements must be sequential and changes should be reflected in ScCompiler::pCharTables */ + CONV_OOO = 0, /* 'doc'#sheet.A1:sheet2.B2 */ + CONV_ODF, /* ['doc'#sheet.A1:sheet2.B2] */ + CONV_XL_A1, /* [doc]sheet:sheet2!A1:B2 */ + CONV_XL_R1C1, /* [doc]sheet:sheet2!R1C1:R2C2 */ + CONV_XL_OOX, /* [#]sheet:sheet2!A1:B2 */ + + CONV_LOTUS_A1, /* external? 3d? A1.B2 <placeholder/> */ + + CONV_LAST, /* for loops, must always be last */ + + // not a real address convention, a special case for INDIRECT function interpretation + // only -> try using CONV_OOO, failing that CONV_XL_A1 + CONV_A1_XL_A1 + }; + + //! CONV_UNSPECIFIED is a negative value! + static const int kConventionOffset = - CONV_UNSPECIFIED + 1; + // Room for 32k hypothetical languages plus EXTERNAL. + static const int kConventionShift = 16; + // Room for 256 reference conventions. + static const int kEnglishBit = (1 << (kConventionShift + 8)); + // Mask off all non-language bits. + static const int kFlagMask = ~((~unsigned(0)) << kConventionShift); + + /** Values encoding the formula language plus address reference convention + plus English parsing/formatting + */ + //! When adding new values adapt isSupported() below as well. + enum Grammar + { + /// Used only in ScCompiler ctor and in some XML import API context. + GRAM_UNSPECIFIED = -1, + /// ODFF with default ODF A1 bracketed references. + GRAM_ODFF = css::sheet::FormulaLanguage::ODFF | + ((CONV_ODF + + kConventionOffset) << kConventionShift) | + kEnglishBit, + /// ODF 1.1 with default ODF A1 bracketed references. + GRAM_PODF = css::sheet::FormulaLanguage::ODF_11 | + ((CONV_ODF + + kConventionOffset) << kConventionShift) | + kEnglishBit, + /// English with default A1 reference style. + GRAM_ENGLISH = css::sheet::FormulaLanguage::ENGLISH | + ((CONV_OOO + + kConventionOffset) << kConventionShift) | + kEnglishBit, + /// Native with default A1 reference style. + GRAM_NATIVE = css::sheet::FormulaLanguage::NATIVE | + ((CONV_OOO + + kConventionOffset) << kConventionShift), + /// ODFF with reference style as set in UI, may be A1 or R1C1. + GRAM_ODFF_UI = css::sheet::FormulaLanguage::ODFF | + ((CONV_UNSPECIFIED + + kConventionOffset) << kConventionShift) | + kEnglishBit, + /// ODFF with A1 reference style, unbracketed. + GRAM_ODFF_A1 = css::sheet::FormulaLanguage::ODFF | + ((CONV_OOO + + kConventionOffset) << kConventionShift) | + kEnglishBit, + /// ODF 1.1 with reference style as set in UI, may be A1 or R1C1. + GRAM_PODF_UI = css::sheet::FormulaLanguage::ODF_11 | + ((CONV_UNSPECIFIED + + kConventionOffset) << kConventionShift) | + kEnglishBit, + /// ODF 1.1 with A1 reference style, unbracketed. + GRAM_PODF_A1 = css::sheet::FormulaLanguage::ODF_11 | + ((CONV_OOO + + kConventionOffset) << kConventionShift) | + kEnglishBit, + /// Native with reference style as set in UI, may be A1 or R1C1. + GRAM_NATIVE_UI = css::sheet::FormulaLanguage::NATIVE | + ((CONV_UNSPECIFIED + + kConventionOffset) << kConventionShift), + /// Native with ODF A1 bracketed references. Not very useful but supported. + GRAM_NATIVE_ODF = css::sheet::FormulaLanguage::NATIVE | + ((CONV_ODF + + kConventionOffset) << kConventionShift), + /// Native with Excel A1 reference style. + GRAM_NATIVE_XL_A1 = css::sheet::FormulaLanguage::NATIVE | + ((CONV_XL_A1 + + kConventionOffset) << kConventionShift), + /// Native with Excel R1C1 reference style. + GRAM_NATIVE_XL_R1C1 = css::sheet::FormulaLanguage::NATIVE | + ((CONV_XL_R1C1 + + kConventionOffset) << kConventionShift), + /// English with Excel A1 reference style. + GRAM_ENGLISH_XL_A1 = css::sheet::FormulaLanguage::XL_ENGLISH | + ((CONV_XL_A1 + + kConventionOffset) << kConventionShift) | + kEnglishBit, + /// English with Excel R1C1 reference style. + GRAM_ENGLISH_XL_R1C1 = css::sheet::FormulaLanguage::XL_ENGLISH | + ((CONV_XL_R1C1 + + kConventionOffset) << kConventionShift) | + kEnglishBit, + /// English with Excel OOXML reference style. + GRAM_ENGLISH_XL_OOX = css::sheet::FormulaLanguage::XL_ENGLISH | + ((CONV_XL_OOX + + kConventionOffset) << kConventionShift) | + kEnglishBit, + /// Excel OOXML with Excel OOXML reference style. + GRAM_OOXML = css::sheet::FormulaLanguage::OOXML | + ((CONV_XL_OOX + + kConventionOffset) << kConventionShift) | + kEnglishBit, + /// API English with A1 reference style, unbracketed. + GRAM_API = css::sheet::FormulaLanguage::API | + ((CONV_OOO + + kConventionOffset) << kConventionShift) | + kEnglishBit, + /// Central definition of the default grammar to be used. + GRAM_DEFAULT = GRAM_NATIVE_UI, + + /// Central definition of the default storage grammar to be used. + GRAM_STORAGE_DEFAULT = GRAM_ODFF, + + /** OpCodeMap set by external filter and merged with reference + convention plus English bit on top. Plain value acts as + FormulaLanguage. */ + GRAM_EXTERNAL = (1 << (kConventionShift - 1)) + }; + + /// If English parsing/formatting is associated with a grammar. + static bool isEnglish( const Grammar eGrammar ) + { + return (eGrammar & kEnglishBit) != 0; + } + + /** Compatibility helper for old "bCompileEnglish, bCompileXML" API calls + to obtain the new grammar. */ + static Grammar mapAPItoGrammar( const bool bEnglish, const bool bXML ); + + static bool isSupported( const Grammar eGrammar ); + + static sal_Int32 extractFormulaLanguage( const Grammar eGrammar ) + { + return eGrammar & kFlagMask; + } + + static AddressConvention extractRefConvention( const Grammar eGrammar ) + { + return static_cast<AddressConvention>( + ((eGrammar & ~kEnglishBit) >> kConventionShift) - + kConventionOffset); + } + + static Grammar setEnglishBit( const Grammar eGrammar, const bool bEnglish ); + + static Grammar mergeToGrammar( const Grammar eGrammar, const AddressConvention eConv ); + + /// If grammar is of ODF 1.1 + static bool isPODF( const Grammar eGrammar ) + { + return extractFormulaLanguage( eGrammar) == + css::sheet::FormulaLanguage::ODF_11; + } + + /// If grammar is of ODFF + static bool isODFF( const Grammar eGrammar ) + { + return extractFormulaLanguage( eGrammar) == + css::sheet::FormulaLanguage::ODFF; + } + + /// If grammar is of OOXML + static bool isOOXML( const Grammar eGrammar ) + { + return extractFormulaLanguage( eGrammar) == + css::sheet::FormulaLanguage::OOXML; + } + + /// If grammar has an Excel syntax, determined by address convention. + static bool isExcelSyntax( const Grammar eGrammar ) + { + AddressConvention eConv = extractRefConvention( eGrammar ); + switch (eConv) + { + case FormulaGrammar::AddressConvention::CONV_XL_A1: + case FormulaGrammar::AddressConvention::CONV_XL_R1C1: + case FormulaGrammar::AddressConvention::CONV_XL_OOX: + return true; + default: + return false; + } + } + +}; + +} // formula + + +#endif // INCLUDED_FORMULA_GRAMMAR_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |