209 lines
7.1 KiB
C++
209 lines
7.1 KiB
C++
#ifndef HGL_XML_PARSE_INCLUDE
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#define HGL_XML_PARSE_INCLUDE
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#include<hgl/type/BaseString.h>
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#include<hgl/type/Map.h>
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#include<hgl/type/StrChar.h>
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#include<hgl/CodePage.h>
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extern "C"
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{
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/**
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* 该XML解晰器使用Expat实现,根据MIT协议取得免费授权,授权协议参见 doc/license/MIT.txt
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* Expat官方网站：http://expat.sourceforge.net/
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*/
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struct XML_ParserStruct;
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using XML_Parser=struct XML_ParserStruct *;
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}
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namespace hgl
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{
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namespace io
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{
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class InputStream;
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}//namespace io
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/**
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* XML节点解析器
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*/
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class XMLElementParse
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{
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public:
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virtual bool StartElement(const char *element_name)=0;
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virtual void Attr(const char *flag,const char *info){};
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virtual void CharData(const char *str,int str_length){};
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virtual void EndElement(const char *element_name){};
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};//class XMLElementParse
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class XMLElementParseKV:public XMLElementParse
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{
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protected:
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using AttrsMap=Map<AnsiString,AnsiString>;
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using AttrItem=Pair<AnsiString,AnsiString>;
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AttrsMap attrs_map;
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protected:
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const AttrItem *GetAttrItem(const AnsiString &name);
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template<typename T> const bool GetInteger (const AnsiString &name,T &value){const AttrItem *ai=GetAttrItem(name);return(ai?stoi(ai->right.c_str(),value):false);}
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template<typename T> const bool GetUInteger (const AnsiString &name,T &value){const AttrItem *ai=GetAttrItem(name);return(ai?stou(ai->right.c_str(),value):false);}
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template<typename T> const bool GetFloat (const AnsiString &name,T &value){const AttrItem *ai=GetAttrItem(name);return(ai?stof(ai->right.c_str(),value):false);}
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public:
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virtual void Attr(const char *flag,const char *info) override;
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public:
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const bool IsExist (const AnsiString &name)const{return attrs_map.KeyExist(name);}
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const char * ToCString (const AnsiString &name){const AttrItem *ai=GetAttrItem(name);return(ai?ai->right.c_str():nullptr);}
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const char * operator[] (const AnsiString &name){return ToCString(name);}
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public:
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const bool Get(const AnsiString &name,AnsiString &str)
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{
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const AttrItem *ai=GetAttrItem(name);
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if(!ai)return(false);
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str=ai->right;
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return(true);
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}
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const bool Get(const AnsiString &name,UTF16String &str)
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{
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const AttrItem *ai=GetAttrItem(name);
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if(!ai)return(false);
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str=to_u16(ai->right);
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return(true);
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}
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const bool Get(const AnsiString &name,char &ch)
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{
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const AttrItem *ai=GetAttrItem(name);
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if(!ai)return(false);
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ch=ai->right.GetBeginChar();
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return(true);
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}
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const bool Get(const AnsiString &name,bool &value)
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{
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const AttrItem *ai=GetAttrItem(name);
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return(ai?stob<char>(ai->right.c_str(),value):false);
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}
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const bool Get(const AnsiString &name, int8 &value){return GetInteger < int8 >(name,value);}
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const bool Get(const AnsiString &name,uint8 &value){return GetUInteger<uint8 >(name,value);}
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const bool Get(const AnsiString &name, int16 &value){return GetInteger < int16>(name,value);}
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const bool Get(const AnsiString &name,uint16 &value){return GetUInteger<uint16>(name,value);}
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const bool Get(const AnsiString &name, int32 &value){return GetInteger < int32>(name,value);}
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const bool Get(const AnsiString &name,uint32 &value){return GetUInteger<uint32>(name,value);}
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const bool Get(const AnsiString &name, int64 &value){return GetInteger < int64>(name,value);}
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const bool Get(const AnsiString &name,uint64 &value){return GetUInteger<uint64>(name,value);}
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const bool GetHexStr(const AnsiString &name,uint8 *data)
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{
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const AttrItem *ai=GetAttrItem(name);
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if(!ai)return(false);
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ParseHexStr(data,ai->right.c_str(),ai->right.Length());
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return(true);
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}
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};//class XMLElementParseKV:public XMLElementParse
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/**
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* XML解析器<br>
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*/
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class XMLParse
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{
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protected:
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XML_Parser xml;
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int buffer_size;
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char *buffer;
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protected:
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XMLElementParse *element_parse;
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virtual void StartParse();
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public:
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XMLParse(XMLElementParse *,const int size=HGL_SIZE_1KB*128);
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virtual ~XMLParse();
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virtual void Start(const char *charset="utf-8");
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virtual bool Parse(const char *buf,int len,bool isFin);
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virtual bool Parse(io::InputStream *,bool isFin=true);
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};//class XMLParse
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bool XMLParseFile(XMLParse *xml,const OSString &filename);
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#define XML_START_PARSE(name) while(*name) \
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{ \
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const char *flag=*name;++name; \
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const char *info=*name;++name;
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#define XML_END_PARSE() LOG_ERROR(UTF8String(__FILE__)+U8_TEXT(":")+UTF8String(__LINE__)+U8_TEXT(" can't parse atts \"")+UTF8String(flag)+U8_TEXT("\" , info \"")+UTF8String(info)+U8_TEXT("\".")); \
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}
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#define XML_END_PARSE_SKIP() ;}
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#define xml_parse_skip(name) if(hgl::strcmp(flag,#name)==0)continue;else
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#define xml_parse_string_u16(name) if(hgl::strcmp(flag,#name)==0)name=to_u16(info);else
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#define xml_parse_string_u8(name) if(hgl::strcmp(flag,#name)==0)name=info;else
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#define xml_parse_int(name) if(hgl::strcmp(flag,#name)==0)hgl::stoi(info,name);else
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#define xml_parse_uint(name) if(hgl::strcmp(flag,#name)==0)hgl::stou(info,name);else
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#define xml_parse_float(name) if(hgl::strcmp(flag,#name)==0)hgl::stof(info,name);else
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#define xml_parse_bool(name) if(hgl::strcmp(flag,#name)==0)hgl::stob(info,name);else
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#define xml_parse_hexstr(name) if(hgl::strcmp(flag,#name)==0)hgl::ParseHexStr(name,info);else
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#define xml_parse_to_string_u8(name,value) if(hgl::strcmp(flag,name)==0)value=info;else
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#define xml_parse_to_int(name,value) if(hgl::strcmp(flag,name)==0)hgl::stoi(info,value);else
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#define xml_parse_to_uint(name,value) if(hgl::strcmp(flag,name)==0)hgl::stou(info,value);else
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#define xml_parse_to_float(name,value) if(hgl::strcmp(flag,name)==0)hgl::stof(info,value);else
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#define xml_parse_to_bool(name,value) if(hgl::strcmp(flag,name)==0)hgl::stob(info,value);else
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/** 使用范例:
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<root>
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<role name="Bill" sex="true" age="18"/>
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<role name="Lucy" sex="false" age="17"/>
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</root>
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void StartElement(const char *element_name,const char **atts) override
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{
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if(strcmp(element_name,"role")==0)
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{
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std::string name;
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bool sex;
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int age;
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XML_START_PARSE(atts)
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xml_parse_string_u8(name)
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xml_parse_bool(sex)
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xml_parse_int(age)
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XML_END_PARSE
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}
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}
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*/
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}//namespace hgl
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#endif//HGL_XML_PARSE_INCLUDE
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