juce_XmlDocument.h

/*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2022 - Raw Material Software Limited
 
   JUCE is an open source library subject to commercial or open-source
   licensing.
 
   The code included in this file is provided under the terms of the ISC license
   http://www.isc.org/downloads/software-support-policy/isc-license. Permission
   To use, copy, modify, and/or distribute this software for any purpose with or
   without fee is hereby granted provided that the above copyright notice and
   this permission notice appear in all copies.
 
   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.
 
  ==============================================================================
*/
 
namespace juce
{
 
//==============================================================================
class JUCE_API  XmlDocument
{
public:
    //==============================================================================
    XmlDocument (const String& documentText);

    XmlDocument (const File& file);

    ~XmlDocument();
 
    //==============================================================================
    std::unique_ptr<XmlElement> getDocumentElement (bool onlyReadOuterDocumentElement = false);

    std::unique_ptr<XmlElement> getDocumentElementIfTagMatches (StringRef requiredTag);

    const String& getLastParseError() const noexcept;

    void setInputSource (InputSource* newSource) noexcept;

    void setEmptyTextElementsIgnored (bool shouldBeIgnored) noexcept;
 
    //==============================================================================
    static std::unique_ptr<XmlElement> parse (const File& file);

    static std::unique_ptr<XmlElement> parse (const String& xmlData);
 
 
    //==============================================================================
private:
    String originalText;
    String::CharPointerType input { nullptr };
    bool outOfData = false, errorOccurred = false;
    String lastError, dtdText;
    StringArray tokenisedDTD;
    bool needToLoadDTD = false, ignoreEmptyTextElements = true;
    std::unique_ptr<InputSource> inputSource;
 
    std::unique_ptr<XmlElement> parseDocumentElement (String::CharPointerType, bool outer);
    void setLastError (const String&, bool carryOn);
    bool parseHeader();
    bool parseDTD();
    void skipNextWhiteSpace();
    juce_wchar readNextChar() noexcept;
    XmlElement* readNextElement (bool alsoParseSubElements);
    void readChildElements (XmlElement&);
    void readQuotedString (String&);
    void readEntity (String&);
 
    String getFileContents (const String&) const;
    String expandEntity (const String&);
    String expandExternalEntity (const String&);
    String getParameterEntity (const String&);
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (XmlDocument)
};
 
//==============================================================================
std::unique_ptr<XmlElement> parseXML (const String& textToParse);

std::unique_ptr<XmlElement> parseXML (const File& fileToParse);

std::unique_ptr<XmlElement> parseXMLIfTagMatches (const String& textToParse, StringRef requiredTag);

std::unique_ptr<XmlElement> parseXMLIfTagMatches (const File& fileToParse, StringRef requiredTag);
 
 
} // namespace juce