You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
107 lines
4.1 KiB
C++
107 lines
4.1 KiB
C++
// Copyright 2008, Google Inc. All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are met:
|
|
//
|
|
// 1. Redistributions of source code must retain the above copyright notice,
|
|
// this list of conditions and the following disclaimer.
|
|
// 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
// this list of conditions and the following disclaimer in the documentation
|
|
// and/or other materials provided with the distribution.
|
|
// 3. Neither the name of Google Inc. nor the names of its contributors may be
|
|
// used to endorse or promote products derived from this software without
|
|
// specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
|
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
|
|
// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
// This file declares the internal Xsd class which holds some of the
|
|
// information in the KML XSD. There are three main users of the Xsd class:
|
|
// 1) the parser for mapping names to ids, 2) the dom for mapping ids
|
|
// to classes, and 3) the serializer for mapping ids back to names.
|
|
|
|
#ifndef KML_XSD_XSD_H__
|
|
#define KML_XSD_XSD_H__
|
|
|
|
#include <map>
|
|
#include "kml/base/util.h"
|
|
|
|
namespace kmldom {
|
|
|
|
enum XsdType {
|
|
XSD_SIMPLE_TYPE,
|
|
XSD_COMPLEX_TYPE,
|
|
XSD_UNKNOWN
|
|
};
|
|
|
|
// This represents an XSD <element>.
|
|
// For example:
|
|
// <element name="name" type="string"/>
|
|
// If the type is fundamental then xsd_type_t is XSD_SIMPLE_TYPE
|
|
// Enumerations are considered simple.
|
|
// Or:
|
|
// <element name="Placemark" type="kml:PlacemarkType"
|
|
// substitutionGroup="kml:AbstractFeatureGroup"/>
|
|
// If the type is no fundamental then xsd_type_t is XSD_COMPLEX_TYPE
|
|
struct XsdElement {
|
|
const char* element_name_; // <element name="element_name_" ... />
|
|
XsdType xsd_type_; // <element ... type="simple-or-complex" />
|
|
};
|
|
|
|
// This respresents an XSD <simpleType> with <restriction base="string">
|
|
// and <enumeration> children. For example:
|
|
// <simpleType name="altitudeModeEnumType">
|
|
// <restriction base="string">
|
|
// <enumeration value="clampToGround"/>
|
|
// <enumeration value="relativeToGround"/>
|
|
// <enumeration value="absolute"/>
|
|
// </restriction>
|
|
// </simpleType>
|
|
// KML's use of XSD offers an opportunity for simplification: there is
|
|
// a 1:1 mapping between the element name and the type. That is, altitudeMode
|
|
// is the only element of type altitudeModeEnumType and vice versa.
|
|
struct XsdSimpleTypeEnum {
|
|
// Yes, this is the element of this type not the type itself
|
|
int type_id;
|
|
const char** enum_value_list; // Value of value attribute.
|
|
};
|
|
|
|
typedef std::map<string,int> tag_id_map_t;
|
|
|
|
// This a 0.1 C++ version of the information in the KML XSD.
|
|
// At present it is just the list of elements. Each element has a name,
|
|
// libkml-specific id, and type info (simple vs complex).
|
|
class Xsd {
|
|
public:
|
|
static Xsd* GetSchema();
|
|
|
|
// Essentially the API to the global <element>'s
|
|
int ElementId(const string& name) const;
|
|
XsdType ElementType(int id) const;
|
|
string ElementName(int id) const;
|
|
|
|
// Return the id of the given enum string for the given enum element.
|
|
int EnumId(int type_id, string enum_value) const;
|
|
// Return the enum string for the given enum id for the given enum element.
|
|
string EnumValue(int type_id, int enum_id) const;
|
|
|
|
private:
|
|
Xsd();
|
|
static Xsd* schema_;
|
|
|
|
tag_id_map_t tag_to_id;
|
|
std::map<int,XsdElement> id_to_string;
|
|
};
|
|
|
|
} // end namespace kmldom
|
|
|
|
#endif // KML_XSD_XSD_H__
|