reader_xml.h

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/*
 * This file is part of liblcf. Copyright (c) 2020 liblcf authors.
 * https://github.com/EasyRPG/liblcf - https://easyrpg.org
 *
 * liblcf is Free/Libre Open Source Software, released under the MIT License.
 * For the full copyright and license information, please view the COPYING
 * file that was distributed with this source code.
 */
 
#ifndef LCF_READER_XML_H
#define LCF_READER_XML_H
 
#include <string>
#include <vector>
#include <cstdio>
#if defined(LCF_SUPPORT_XML)
#  include <expat.h>
#endif
#include <stdint.h>
#include "lcf_options.h"
#include "reader_util.h"
 
class XmlHandler;
 
class XmlReader {
 
public:
    XmlReader(std::istream& filestream);
 
    ~XmlReader();
 
    bool IsOk() const;
 
    void Error(const char* fmt, ...);
 
    void Parse();
 
    void SetHandler(XmlHandler* handler);
 
    template <class T>
    static void Read(T& ref, const std::string& data);
 
    template <class T>
    static void ReadVector(std::vector<T>& ref, const std::string& data);
 
    void StartElement(const char* name, const char** atts);
 
    void CharacterData(const char* s, int len);
 
    void EndElement(const char* name);
 
protected:
    std::istream& stream;
#if defined(LCF_SUPPORT_XML)
    XML_Parser parser;
#else
    void* parser;
#endif
    int nesting;
    std::vector<XmlHandler*> handlers;
    std::string buffer;
 
};
 
class XmlHandler {
 
public:
    virtual void StartElement(XmlReader& /* reader */, const char* /* name */, const char** /* atts */) {}
    virtual void CharacterData(XmlReader& /* reader */, const std::string& /* data */) {}
    virtual void EndElement(XmlReader& /* reader */, const char* /* name */) {}
    XmlHandler() {}
    virtual ~XmlHandler() {}
 
};
 
#endif