mozilla-history/rdf/base/public/rdf.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (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.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
/*
A catch-all header file for miscellaneous RDF stuff. Currently
contains error codes and vocabulary macros.
*/
#ifndef rdf_h___
#define rdf_h___
#include "nsError.h"
/**
* The following macros are to aid in vocabulary definition. They
* creates const char*'s for "kURI[prefix]_[name]", appropriate
* complete namespace qualification on the URI, e.g.,
*
* #define RDF_NAMESPACE_URI "http://www.w3.org/TR/WD-rdf-syntax#"
* DEFINE_RDF_ELEMENT(RDF_NAMESPACE_URI, RDF, ID);
*
* will define:
*
* kURIRDF_ID to be "http://www.w3.org/TR/WD-rdf-syntax#ID"
*/
#define DEFINE_RDF_VOCAB(ns, prefix, name) \
static const char* kURI##prefix##_##name = ns #name
/**
* Core RDF vocabularies that we use to define semantics
*/
#define RDF_NAMESPACE_URI "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
#define WEB_NAMESPACE_URI "http://home.netscape.com/WEB-rdf#"
#define NC_NAMESPACE_URI "http://home.netscape.com/NC-rdf#"
/**
* @name Standard RDF error codes
*/
/*@{*/
/* Returned from nsIRDFCursor::Advance() if the cursor has no more
elements to enuemrate */
#define NS_RDF_CURSOR_EMPTY NS_ERROR_GENERATE_SUCCESS(NS_ERROR_MODULE_RDF, 1)
/* Returned from nsIRDFDataSource::GetSource() and GetTarget() if the source/target
has no value */
#define NS_RDF_NO_VALUE NS_ERROR_GENERATE_SUCCESS(NS_ERROR_MODULE_RDF, 2)
/* Returned from nsIRDFDataSource::Assert() and Unassert() if the assertion (or
unassertion was accepted by the datasource*/
#define NS_RDF_ASSERTION_ACCEPTED NS_OK
/* Returned from nsIRDFDataSource::Assert() and Unassert() if the assertion (or
unassertion) was rejected by the datasource; i.e., the datasource was not
willing to record the statement. */
#define NS_RDF_ASSERTION_REJECTED NS_ERROR_GENERATE_SUCCESS(NS_ERROR_MODULE_RDF, 3)
/* ProgID prefixes for RDF DLL registration. */
#define NS_RDF_PROGID "component://netscape/rdf"
#define NS_RDF_DATASOURCE_PROGID NS_RDF_PROGID "/datasource"
#define NS_RDF_DATASOURCE_PROGID_PREFIX NS_RDF_DATASOURCE_PROGID "?name="
#define NS_RDF_RESOURCE_FACTORY_PROGID "component://netscape/rdf/resource-factory"
#define NS_RDF_RESOURCE_FACTORY_PROGID_PREFIX NS_RDF_RESOURCE_FACTORY_PROGID "?name="
/*@}*/
#ifdef _IMPL_NS_RDF
#ifdef XP_PC
#define NS_RDF _declspec(dllexport)
#else /* !XP_PC */
#define NS_RDF
#endif /* !XP_PC */
#else /* !_IMPL_NS_RDF */
#ifdef XP_PC
#define NS_RDF _declspec(dllimport)
#else /* !XP_PC */
#define NS_RDF
#endif /* !XP_PC */
#endif /* !_IMPL_NS_RDF */
#endif /* rdf_h___ */