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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /include/sax/fastattribs.hxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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diff --git a/include/sax/fastattribs.hxx b/include/sax/fastattribs.hxx
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+/* -*- 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_SAX_FASTATTRIBS_HXX
+#define INCLUDED_SAX_FASTATTRIBS_HXX
+
+#include <com/sun/star/xml/sax/XFastAttributeList.hpp>
+#include <com/sun/star/xml/sax/XFastTokenHandler.hpp>
+#include <com/sun/star/util/XCloneable.hpp>
+
+#include <cppuhelper/implbase.hxx>
+#include <sax/saxdllapi.h>
+
+#include <string_view>
+#include <vector>
+
+namespace com::sun::star::xml::sax { class XFastTokenHandler; }
+namespace com::sun::star::xml { struct Attribute; }
+namespace com::sun::star::xml { struct FastAttribute; }
+
+namespace sax_fastparser
+{
+
+struct UnknownAttribute
+{
+ OUString maNamespaceURL;
+ OString maName;
+ OString maValue;
+
+ UnknownAttribute( OUString sNamespaceURL, OString aName, OString value );
+ UnknownAttribute( OString sName, OString value );
+
+ void FillAttribute( css::xml::Attribute* pAttrib ) const;
+};
+
+/// A native C++ interface to tokenisation
+class SAX_DLLPUBLIC FastTokenHandlerBase :
+ public cppu::WeakImplHelper< css::xml::sax::XFastTokenHandler >
+{
+ public:
+ virtual ~FastTokenHandlerBase();
+ virtual sal_Int32 getTokenDirect( const char *pToken, sal_Int32 nLength ) const = 0;
+
+ /**
+ * Client method to attempt the use of this interface if possible.
+ * @xTokenHandler - the token lookup interface
+ * @pStr - string buffer to lookup
+ * @nLength - optional length of chars in that buffer
+ *
+ * @return Tokenized form of pStr
+ */
+ static sal_Int32 getTokenFromChars(
+ const FastTokenHandlerBase *pTokenHandler,
+ const char *pStr, size_t nLength );
+};
+
+
+class SAX_DLLPUBLIC FastAttributeList final : public cppu::WeakImplHelper< css::xml::sax::XFastAttributeList, css::util::XCloneable >
+{
+public:
+ FastAttributeList( FastTokenHandlerBase *pTokenHandler );
+ FastAttributeList( const css::uno::Reference< css::xml::sax::XFastAttributeList > & xAttrList );
+ virtual ~FastAttributeList() override;
+
+ void clear();
+ void reserve( sal_Int32 nNumTokens )
+ {
+ maAttributeValues.reserve(nNumTokens+1);
+ maAttributeTokens.reserve(nNumTokens);
+ }
+ void add( const FastAttributeList& );
+ void add( const css::uno::Reference<css::xml::sax::XFastAttributeList>& );
+ void add( sal_Int32 nToken, const char* pValue );
+ void add( sal_Int32 nToken, const char* pValue, size_t nValueLength );
+ void add( sal_Int32 nToken, const OString& rValue );
+ void add( sal_Int32 nToken, std::u16string_view sValue ); // Converts to UTF-8
+ void addNS( sal_Int32 nNamespaceToken, sal_Int32 nToken, const OString& rValue );
+ void addNS( sal_Int32 nNamespaceToken, sal_Int32 nToken, std::u16string_view sValue );
+ // note: rQName is *namespace-prefixed*
+ void addUnknown( const OUString& rNamespaceURL, const OString& rQName, const OString& value );
+ void addUnknown( const OString& rName, const OString& value );
+ const std::vector< sal_Int32 >& getFastAttributeTokens() const { return maAttributeTokens; }
+ const char* getFastAttributeValue(size_t nIndex) const { return mpChunk + maAttributeValues[nIndex]; }
+ sal_Int32 AttributeValueLength(size_t i) const { return maAttributeValues[i + 1] - maAttributeValues[i] - 1; }
+ size_t size() const { return maAttributeValues.size(); }
+
+ // performance sensitive shortcuts to avoid allocation ...
+ bool getAsInteger( sal_Int32 nToken, sal_Int32 &rInt) const;
+ bool getAsDouble( sal_Int32 nToken, double &rDouble) const;
+ bool getAsChar( sal_Int32 nToken, const char*& rPos ) const;
+ sal_Int32 getAsIntegerByIndex( sal_Int32 nTokenIndex ) const;
+ const char* getAsCharByIndex( sal_Int32 nTokenIndex ) const;
+ OUString getValueByIndex( sal_Int32 nTokenIndex ) const;
+
+ // XFastAttributeList
+ virtual sal_Bool SAL_CALL hasAttribute( ::sal_Int32 Token ) override;
+ virtual ::sal_Int32 SAL_CALL getValueToken( ::sal_Int32 Token ) override;
+ virtual ::sal_Int32 SAL_CALL getOptionalValueToken( ::sal_Int32 Token, ::sal_Int32 Default ) override;
+ virtual OUString SAL_CALL getValue( ::sal_Int32 Token ) override;
+ virtual OUString SAL_CALL getOptionalValue( ::sal_Int32 Token ) override;
+ virtual css::uno::Sequence< css::xml::Attribute > SAL_CALL getUnknownAttributes( ) override;
+ virtual css::uno::Sequence< css::xml::FastAttribute > SAL_CALL getFastAttributes() override;
+
+ // XCloneable
+ virtual ::css::uno::Reference< ::css::util::XCloneable > SAL_CALL createClone() override;
+
+ sal_Int32 getAttributeIndex( ::sal_Int32 Token )
+ {
+ for (size_t i=0; i<maAttributeTokens.size(); ++i)
+ if (maAttributeTokens[i] == Token)
+ return i;
+ return -1;
+ }
+
+ /// Use for fast iteration and conversion of attributes
+ class FastAttributeIter {
+ const FastAttributeList &mrList;
+ size_t mnIdx;
+
+ public:
+ FastAttributeIter(const FastAttributeList &rList, size_t nIdx)
+ : mrList(rList), mnIdx(nIdx)
+ {
+ }
+
+ FastAttributeIter& operator++ ()
+ {
+ mnIdx++;
+ return *this;
+ }
+ bool operator!=( const FastAttributeIter& rhs ) const
+ {
+ return mnIdx != rhs.mnIdx;
+ }
+
+ const FastAttributeIter& operator*() const
+ {
+ return *this;
+ }
+
+ sal_Int32 getToken() const
+ {
+ assert(mnIdx < mrList.maAttributeTokens.size());
+ return mrList.maAttributeTokens[mnIdx];
+ }
+ bool isEmpty() const
+ {
+ assert(mnIdx < mrList.maAttributeTokens.size());
+ return mrList.AttributeValueLength(mnIdx) < 1;
+ }
+ sal_Int32 toInt32() const
+ {
+ assert(mnIdx < mrList.maAttributeTokens.size());
+ return rtl_str_toInt32(mrList.getFastAttributeValue(mnIdx), 10);
+ }
+ double toDouble() const
+ {
+ assert(mnIdx < mrList.maAttributeTokens.size());
+ return rtl_str_toDouble(mrList.getFastAttributeValue(mnIdx));
+ }
+ bool toBoolean() const
+ {
+ assert(mnIdx < mrList.maAttributeTokens.size());
+ return rtl_str_toBoolean(mrList.getFastAttributeValue(mnIdx));
+ }
+ OUString toString() const
+ {
+ assert(mnIdx < mrList.maAttributeTokens.size());
+ return OUString(mrList.getFastAttributeValue(mnIdx),
+ mrList.AttributeValueLength(mnIdx),
+ RTL_TEXTENCODING_UTF8);
+ }
+ const char* toCString() const
+ {
+ assert(mnIdx < mrList.maAttributeTokens.size());
+ return mrList.getFastAttributeValue(mnIdx);
+ }
+ sal_Int32 getLength() const
+ {
+ assert(mnIdx < mrList.maAttributeTokens.size());
+ return mrList.AttributeValueLength(mnIdx);
+ }
+ std::string_view toView() const
+ {
+ assert(mnIdx < mrList.maAttributeTokens.size());
+ return std::string_view(mrList.getFastAttributeValue(mnIdx), mrList.AttributeValueLength(mnIdx));
+ }
+ bool isString(const char *str) const
+ {
+ assert(mnIdx < mrList.maAttributeTokens.size());
+ return !strcmp(str, mrList.getFastAttributeValue(mnIdx));
+ }
+ };
+ FastAttributeIter begin() const { return FastAttributeIter(*this, 0); }
+ FastAttributeIter end() const { return FastAttributeIter(*this, maAttributeTokens.size()); }
+ FastAttributeIter find( sal_Int32 nToken ) const;
+
+private:
+ char *mpChunk; ///< buffer to store all attribute values - null terminated strings
+ sal_Int32 mnChunkLength; ///< size of allocated memory for mpChunk
+ // maAttributeValues stores pointers, relative to mpChunk, for each attribute value string
+ // length of the string is maAttributeValues[n+1] - maAttributeValues[n] - 1
+ // maAttributeValues[0] == 0
+ std::vector< sal_Int32 > maAttributeValues;
+ std::vector< sal_Int32 > maAttributeTokens;
+ std::vector< UnknownAttribute > maUnknownAttributes;
+ FastTokenHandlerBase * mpTokenHandler;
+};
+
+inline FastAttributeList& castToFastAttributeList(
+ const css::uno::Reference< css::xml::sax::XFastAttributeList >& xAttrList )
+{
+ assert( dynamic_cast <FastAttributeList *> ( xAttrList.get() ) != nullptr );
+ return *static_cast <FastAttributeList *> ( xAttrList.get() );
+}
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */