mirror of
https://github.com/jezhiggins/arabica
synced 2024-12-28 22:23:21 +01:00
223 lines
7.3 KiB
C++
223 lines
7.3 KiB
C++
#ifndef AttributesH
|
|
#define AttributesH
|
|
|
|
// Attributes.h
|
|
// $Id$
|
|
|
|
#include <string>
|
|
|
|
namespace SAX
|
|
{
|
|
|
|
/**
|
|
* Interface for a list of XML attributes.
|
|
*
|
|
* <p>This interface allows access to a list of attributes in
|
|
* three different ways:</p>
|
|
*
|
|
* <ol>
|
|
* <li>by attribute index;</li>
|
|
* <li>by Namespace-qualified name; or</li>
|
|
* <li>by qualified (prefixed) name.</li>
|
|
* </ol>
|
|
*
|
|
* <p>The list will not contain attributes that were declared
|
|
* #IMPLIED but not specified in the start tag. It will also not
|
|
* contain attributes used as Namespace declarations (xmlns*) unless
|
|
* the <code>http://xml.org/sax/features/namespace-prefixes</code>
|
|
* feature is set to <var>true</var> (it is <var>false</var> by
|
|
* default).</p>
|
|
*
|
|
* <p>If the namespace-prefixes feature (see above) is <var>false</var>,
|
|
* access by qualified name may not be available; if the
|
|
* <code>http://xml.org/sax/features/namespaces</code>
|
|
* feature is <var>false</var>, access by Namespace-qualified names
|
|
* may not be available.</p>
|
|
*
|
|
* <p>This interface replaces the now-deprecated SAX1 {@link
|
|
* basic_AttributeList AttributeList} interface, which does not
|
|
* contain Namespace support. In addition to Namespace support, it
|
|
* adds the <var>getIndex</var> methods (below).</p>
|
|
*
|
|
* <p>The order of attributes in the list is unspecified, and will
|
|
* vary from implementation to implementation.</p>
|
|
*
|
|
* @since SAX 2.0
|
|
* @author Jez Higgins,
|
|
* <a href="mailto:jez@jezuk.co.uk">jez@jezuk.co.uk</a>
|
|
* @version 2.0
|
|
* @see basic_AttributesImpl
|
|
*/
|
|
template<class string_type>
|
|
class basic_Attributes
|
|
{
|
|
public:
|
|
typedef string_type stringT;
|
|
|
|
virtual ~basic_Attributes() { }
|
|
|
|
//
|
|
// indexed access
|
|
//
|
|
/**
|
|
* Return the number of attributes in the list.
|
|
*
|
|
* <p>Once you know the number of attributes, you can iterate
|
|
* through the list.</p>
|
|
*
|
|
* @return The number of attributes in the list.
|
|
* @see #getURI(int)
|
|
* @see #getLocalName(int)
|
|
* @see #getQName(int)
|
|
* @see #getType(int)
|
|
* @see #getValue(int)
|
|
*/
|
|
virtual int getLength() const = 0;
|
|
/**
|
|
* Look up an attribute's Namespace URI by index.
|
|
*
|
|
* @param index The attribute index (zero-based).
|
|
* @return The Namespace URI, or the empty string if none
|
|
* is available, or null if the index is out of
|
|
* range.
|
|
* @see #getLength
|
|
*/
|
|
virtual stringT getURI(unsigned int index) const = 0;
|
|
/**
|
|
* Look up an attribute's local name by index.
|
|
*
|
|
* @param index The attribute index (zero-based).
|
|
* @return The local name, or the empty string if Namespace
|
|
* processing is not being performed, or null
|
|
* if the index is out of range.
|
|
* @see #getLength
|
|
*/
|
|
virtual stringT getLocalName(unsigned int index) const = 0;
|
|
/**
|
|
* Look up an attribute's XML 1.0 qualified name by index.
|
|
*
|
|
* @param index The attribute index (zero-based).
|
|
* @return The XML 1.0 qualified name, or the empty string
|
|
* if none is available, or null if the index
|
|
* is out of range.
|
|
* @see #getLength
|
|
*/
|
|
virtual stringT getQName(unsigned int index) const = 0;
|
|
/**
|
|
* Look up an attribute's type by index.
|
|
*
|
|
* <p>The attribute type is one of the strings "CDATA", "ID",
|
|
* "IDREF", "IDREFS", "NMTOKEN", "NMTOKENS", "ENTITY", "ENTITIES",
|
|
* or "NOTATION" (always in upper case).</p>
|
|
*
|
|
* <p>If the parser has not read a declaration for the attribute,
|
|
* or if the parser does not report attribute types, then it must
|
|
* return the value "CDATA" as stated in the XML 1.0 Recommentation
|
|
* (clause 3.3.3, "Attribute-Value Normalization").</p>
|
|
*
|
|
* <p>For an enumerated attribute that is not a notation, the
|
|
* parser will report the type as "NMTOKEN".</p>
|
|
*
|
|
* @param index The attribute index (zero-based).
|
|
* @return The attribute's type as a string, or null if the
|
|
* index is out of range.
|
|
* @see #getLength
|
|
*/
|
|
virtual stringT getType(unsigned int index) const = 0;
|
|
/**
|
|
* Look up an attribute's value by index.
|
|
*
|
|
* <p>If the attribute value is a list of tokens (IDREFS,
|
|
* ENTITIES, or NMTOKENS), the tokens will be concatenated
|
|
* into a single string with each token separated by a
|
|
* single space.</p>
|
|
*
|
|
* @param index The attribute index (zero-based).
|
|
* @return The attribute's value as a string, or null if the
|
|
* index is out of range.
|
|
* @see #getLength
|
|
*/
|
|
virtual stringT getValue(unsigned int index) const = 0;
|
|
|
|
//
|
|
// name based query
|
|
//
|
|
/**
|
|
* Look up the index of an attribute by Namespace name.
|
|
*
|
|
* @param uri The Namespace URI, or the empty string if
|
|
* the name has no Namespace URI.
|
|
* @param localName The attribute's local name.
|
|
* @return The index of the attribute, or -1 if it does not
|
|
* appear in the list.
|
|
*/
|
|
virtual int getIndex(const stringT& uri, const stringT& localPart) const = 0;
|
|
/**
|
|
* Look up the index of an attribute by XML 1.0 qualified name.
|
|
*
|
|
* @param qName The qualified (prefixed) name.
|
|
* @return The index of the attribute, or -1 if it does not
|
|
* appear in the list.
|
|
*/
|
|
virtual int getIndex(const stringT& qName) const = 0;
|
|
/**
|
|
* Look up an attribute's type by Namespace name.
|
|
*
|
|
* <p>See {@link #getType(unsigned int) getType(unsigned int)} for a description
|
|
* of the possible types.</p>
|
|
*
|
|
* @param uri The Namespace URI, or the empty String if the
|
|
* name has no Namespace URI.
|
|
* @param localName The local name of the attribute.
|
|
* @return The attribute type as a string, or null if the
|
|
* attribute is not in the list or if Namespace
|
|
* processing is not being performed.
|
|
*/
|
|
virtual stringT getType(const stringT& uri, const stringT& localName) const = 0;
|
|
/**
|
|
* Look up an attribute's type by XML 1.0 qualified name.
|
|
*
|
|
* <p>See {@link #getType(unsigned int) getType(unsigned int)} for a description
|
|
* of the possible types.</p>
|
|
*
|
|
* @param qName The XML 1.0 qualified name.
|
|
* @return The attribute type as a string, or null if the
|
|
* attribute is not in the list or if qualified names
|
|
* are not available.
|
|
*/
|
|
virtual stringT getType(const stringT& qName) const = 0;
|
|
/**
|
|
* Look up an attribute's value by Namespace name.
|
|
*
|
|
* <p>See {@link #getValue(unsigned int) getValue(unsigned int)} for a description
|
|
* of the possible values.</p>
|
|
*
|
|
* @param uri The Namespace URI, or the empty String if the
|
|
* name has no Namespace URI.
|
|
* @param localName The local name of the attribute.
|
|
* @return The attribute value as a string, or null if the
|
|
* attribute is not in the list.
|
|
*/
|
|
virtual stringT getValue(const stringT& uri, const stringT& localName) const = 0;
|
|
/**
|
|
* Look up an attribute's value by XML 1.0 qualified name.
|
|
*
|
|
* <p>See {@link #getValue(unsigned int) getValue(unsigned int)} for a description
|
|
* of the possible values.</p>
|
|
*
|
|
* @param qName The XML 1.0 qualified name.
|
|
* @return The attribute value as a string, or null if the
|
|
* attribute is not in the list or if qualified names
|
|
* are not available.
|
|
*/
|
|
virtual stringT getValue(const stringT& qname) const = 0;
|
|
|
|
}; // class Attributes
|
|
|
|
typedef basic_Attributes<std::string> Attributes;
|
|
typedef basic_Attributes<std::wstring> wAttributes;
|
|
|
|
}; // namespace SAX
|
|
|
|
#endif
|
|
// end of file
|