gecko-dev/parser/xml/nsISAXAttributes.idl

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2012-05-21 15:12:37 +04:00
/* 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/. */
#include "nsISupports.idl"
/**
* Interface for a list of XML attributes.
*
* This interface allows access to a list of attributes in
* three different ways:
*
* 1.) by attribute index;
* 2.) by Namespace-qualified name; or
* 3.) by XML qualified name.
*
* 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
* http://xml.org/sax/features/namespace-prefixes feature
* is set to true (it is false by default).
*
* The order of attributes in the list is unspecified.
*/
[scriptable, uuid(e347005e-6cd0-11da-be43-001422106990)]
interface nsISAXAttributes : nsISupports
{
/**
* 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.
*/
long getIndexFromName(in AString uri, in AString localName);
/**
* Look up the index of an attribute by XML qualified name.
* @param qName The qualified name.
* @return The index of the attribute, or -1
* if it does not appear in the list.
*/
long getIndexFromQName(in AString qName);
/**
* Return the number of attributes in the list. Once you know the
* number of attributes, you can iterate through the list.
*
* @return The number of attributes in the list.
*/
readonly attribute long length;
/**
* Look up an attribute's local name by index.
* @param index The attribute index (zero-based).
* @return The local name, or null if the index is out of range.
*/
AString getLocalName(in unsigned long index);
/**
* Look up an attribute's XML qualified name by index.
* @param index The attribute index (zero-based).
* @return The XML qualified name, or the empty string if none is
* available, or null if the index is out of range.
*/
AString getQName(in unsigned long index);
/**
* Look up an attribute's type by index. The attribute type is one
* of the strings "CDATA", "ID", "IDREF", "IDREFS", "NMTOKEN",
* "NMTOKENS", "ENTITY", "ENTITIES", or "NOTATION" (always in upper
* case). 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
* Recommendation (clause 3.3.3, "Attribute-Value
* Normalization"). For an enumerated attribute that is not a
* notation, the parser will report the type as "NMTOKEN".
*
* @param index The attribute index (zero-based).
* @return The attribute's type as a string, or null if the index is
* out of range.
*/
AString getType(in unsigned long index);
/**
* Look up an attribute's type 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 attribute type as a string, or null if the attribute
* is not in the list.
*/
AString getTypeFromName(in AString uri, in AString localName);
/**
* Look up an attribute's type by XML qualified name.
* @param qName The qualified name.
* @return The attribute type as a string, or null if the attribute
* is not in the list.
*/
AString getTypeFromQName(in AString qName);
/**
* 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.
*/
AString getURI(in unsigned long index);
/**
* Look up an attribute's value by index. 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.
*
* @param index The attribute index (zero-based).
* @return The attribute's value as a string, or null if the index is
* out of range.
*/
AString getValue(in unsigned long index);
/**
* Look up an attribute's value by Namespace name. 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.
*
* @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 attribute's value as a string, or null if the attribute is
* not in the list.
*/
AString getValueFromName(in AString uri, in AString localName);
/**
* Look up an attribute's value by XML qualified (prefixed) name.
* 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.
*
* @param qName The qualified (prefixed) name.
* @return The attribute's value as a string, or null if the attribute is
* not in the list.
*/
AString getValueFromQName(in AString qName);
};