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//
// AttributesImpl.h
//
// Library: XML
// Package: SAX
// Module: SAX
//
// Implementation of the SAX2 Attributes Interface.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef SAX_AttributesImpl_INCLUDED
#define SAX_AttributesImpl_INCLUDED
#include "Poco/XML/XML.h"
#include "Poco/SAX/Attributes.h"
#include <vector>
namespace Poco {
namespace XML {
class XML_API AttributesImpl: public Attributes
/// This class provides a default implementation of the SAX2 Attributes interface,
/// with the addition of manipulators so that the list can be modified or reused.
///
/// There are two typical uses of this class:
/// 1. to take a persistent snapshot of an Attributes object in a startElement event; or
/// 2. to construct or modify an Attributes object in a SAX2 driver or filter.
{
public:
struct Attribute
{
XMLString localName;
XMLString namespaceURI;
XMLString qname;
XMLString value;
XMLString type;
bool specified;
};
typedef std::vector<Attribute> AttributeVec;
typedef AttributeVec::const_iterator iterator;
AttributesImpl();
/// Creates the AttributesImpl.
AttributesImpl(const Attributes& attributes);
/// Creates the AttributesImpl by copying another one.
AttributesImpl(const AttributesImpl& attributes);
/// Creates the AttributesImpl by copying another one.
~AttributesImpl();
/// Destroys the AttributesImpl.
AttributesImpl& operator = (const AttributesImpl& attributes);
/// Assignment operator.
int getIndex(const XMLString& name) const;
int getIndex(const XMLString& namespaceURI, const XMLString& localName) const;
int getLength() const;
const XMLString& getLocalName(int i) const;
const XMLString& getQName(int i) const;
const XMLString& getType(int i) const;
const XMLString& getType(const XMLString& qname) const;
const XMLString& getType(const XMLString& namespaceURI, const XMLString& localName) const;
const XMLString& getValue(int i) const;
const XMLString& getValue(const XMLString& qname) const;
const XMLString& getValue(const XMLString& namespaceURI, const XMLString& localName) const;
const XMLString& getURI(int i) const;
bool isSpecified(int i) const;
/// Returns true unless the attribute value was provided by DTD defaulting.
/// Extension from Attributes2 interface.
bool isSpecified(const XMLString& qname) const;
/// Returns true unless the attribute value was provided by DTD defaulting.
/// Extension from Attributes2 interface.
bool isSpecified(const XMLString& namespaceURI, const XMLString& localName) const;
/// Returns true unless the attribute value was provided by DTD defaulting.
/// Extension from Attributes2 interface.
void setValue(int i, const XMLString& value);
/// Sets the value of an attribute.
void setValue(const XMLString& qname, const XMLString& value);
/// Sets the value of an attribute.
void setValue(const XMLString& namespaceURI, const XMLString& localName, const XMLString& value);
/// Sets the value of an attribute.
void setAttributes(const Attributes& attributes);
/// Copies the attributes from another Attributes object.
void setAttribute(int i, const XMLString& namespaceURI, const XMLString& localName, const XMLString& qname, const XMLString& type, const XMLString& value);
/// Sets an attribute.
void addAttribute(const XMLString& namespaceURI, const XMLString& localName, const XMLString& qname, const XMLString& type, const XMLString& value);
/// Adds an attribute to the end of the list.
void addAttribute(const XMLString& namespaceURI, const XMLString& localName, const XMLString& qname, const XMLString& type, const XMLString& value, bool specified);
/// Adds an attribute to the end of the list.
void addAttribute(const XMLChar* namespaceURI, const XMLChar* localName, const XMLChar* qname, const XMLChar* type, const XMLChar* value, bool specified);
/// Adds an attribute to the end of the list.
Attribute& addAttribute();
/// Add an (empty) attribute to the end of the list.
/// For internal use only.
/// The returned Attribute element must be filled by the caller.
void removeAttribute(int i);
/// Removes an attribute.
void removeAttribute(const XMLString& qname);
/// Removes an attribute.
void removeAttribute(const XMLString& namespaceURI, const XMLString& localName);
/// Removes an attribute.
void clear();
/// Removes all attributes.
void reserve(std::size_t capacity);
/// Reserves capacity in the internal vector.
void setLocalName(int i, const XMLString& localName);
/// Sets the local name of an attribute.
void setQName(int i, const XMLString& qname);
/// Sets the qualified name of an attribute.
void setType(int i, const XMLString& type);
/// Sets the type of an attribute.
void setURI(int i, const XMLString& namespaceURI);
/// Sets the namespace URI of an attribute.
iterator begin() const;
/// Iterator support.
iterator end() const;
/// Iterator support.
protected:
Attribute* find(const XMLString& qname) const;
Attribute* find(const XMLString& namespaceURI, const XMLString& localName) const;
private:
AttributeVec _attributes;
Attribute _empty;
};
//
// inlines
//
inline AttributesImpl::iterator AttributesImpl::begin() const
{
return _attributes.begin();
}
inline AttributesImpl::iterator AttributesImpl::end() const
{
return _attributes.end();
}
inline AttributesImpl::Attribute& AttributesImpl::addAttribute()
{
_attributes.push_back(_empty);
return _attributes.back();
}
inline int AttributesImpl::getLength() const
{
return (int) _attributes.size();
}
inline const XMLString& AttributesImpl::getLocalName(int i) const
{
poco_assert (0 <= i && i < static_cast<int>(_attributes.size()));
return _attributes[i].localName;
}
inline const XMLString& AttributesImpl::getQName(int i) const
{
poco_assert (0 <= i && i < static_cast<int>(_attributes.size()));
return _attributes[i].qname;
}
inline const XMLString& AttributesImpl::getType(int i) const
{
poco_assert (0 <= i && i < static_cast<int>(_attributes.size()));
return _attributes[i].type;
}
inline const XMLString& AttributesImpl::getType(const XMLString& qname) const
{
Attribute* pAttr = find(qname);
if (pAttr)
return pAttr->type;
else
return _empty.type;
}
inline const XMLString& AttributesImpl::getType(const XMLString& namespaceURI, const XMLString& localName) const
{
Attribute* pAttr = find(namespaceURI, localName);
if (pAttr)
return pAttr->type;
else
return _empty.type;
}
inline const XMLString& AttributesImpl::getValue(int i) const
{
poco_assert (0 <= i && i < static_cast<int>(_attributes.size()));
return _attributes[i].value;
}
inline const XMLString& AttributesImpl::getValue(const XMLString& qname) const
{
Attribute* pAttr = find(qname);
if (pAttr)
return pAttr->value;
else
return _empty.value;
}
inline const XMLString& AttributesImpl::getValue(const XMLString& namespaceURI, const XMLString& localName) const
{
Attribute* pAttr = find(namespaceURI, localName);
if (pAttr)
return pAttr->value;
else
return _empty.value;
}
inline const XMLString& AttributesImpl::getURI(int i) const
{
poco_assert (0 <= i && i < static_cast<int>(_attributes.size()));
return _attributes[i].namespaceURI;
}
inline bool AttributesImpl::isSpecified(int i) const
{
poco_assert (0 <= i && i < static_cast<int>(_attributes.size()));
return _attributes[i].specified;
}
inline bool AttributesImpl::isSpecified(const XMLString& qname) const
{
Attribute* pAttr = find(qname);
if (pAttr)
return pAttr->specified;
else
return false;
}
inline bool AttributesImpl::isSpecified(const XMLString& namespaceURI, const XMLString& localName) const
{
Attribute* pAttr = find(namespaceURI, localName);
if (pAttr)
return pAttr->specified;
else
return false;
}
} } // namespace Poco::XML
#endif // SAX_AttributesImpl_INCLUDED
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