（转）TinyXML Tutorial 中文指南
關(guān)于TinyXml 2008-11-12 18:16:14 閱讀518 評論0 ??字號：大中小?訂閱
注： 本文是 TinyXML 2.5.3 版本 Document 中的《TinyXML Tutorial》的翻譯文檔，由本人 Dennis.Gao 翻譯，版權(quán)歸原作者所有，轉(zhuǎn)載本文檔請注明出處。原文出自 TinyXML 源碼包doc目錄。在線文檔：http://www.grinninglizard.com/tinyxmldocs/tutorial0.html
Author ： Dennis.Gao
Date ： 2008.01.01
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這是什么？
本指南就如何有效的使用 TinyXML 提供一些竅門和建議。
這里也會包括一些 C++ 的竅門，像如何在字符串和整數(shù)之間進(jìn)行轉(zhuǎn)換。這和 TinyXML 本身并沒有任何關(guān)系，但是它會對你的工程有所幫助，所以我把它寫了進(jìn)來。
如果你不知道 C++ 的基本概念，那么本指南對你沒有任何用處。同樣，如果你不知道 DOM 是什么，先在別的地方學(xué)習(xí)一下吧。
開始之前
一些 XML 數(shù)據(jù)集/文件將會被用到：
example1.xml:
| ? <?xml version="1.0" ?> <Hello>World</Hello> |
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example2.xml:
| ? <?xml version="1.0" ?> <poetry> ???????<verse> ???????????????Alas ?????????????????Great World ???????????????????????Alas (again) ???????</verse> </poetry> |
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example3.xml:
| ? <?xml version="1.0" ?> <shapes> ???????<circle name="int-based" x="20" y="30" r="50" /> ???????<point name="float-based" x="3.5" y="52.1" /> </shapes> |
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example4.xml:
| ? <?xml version="1.0" ?> <MyApp> ????<!-- Settings for MyApp --> ????<Messages> ????????<Welcome>Welcome to MyApp</Welcome> ????????<Farewell>Thank you for using MyApp</Farewell> ????</Messages> ????<Windows> ????????<Window name="MainFrame" x="5" y="15" w="400" h="250" /> ????</Windows> ????<Connection ip="192.168.0.1" timeout="123.456000" /> </MyApp> |
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開始起步
從文件加載 XML
將一個文件加載到 TinyXML DOM 中的最簡單方法:
| ? TiXmlDocument doc( "demo.xml" ); doc.LoadFile(); |
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下面是一個更實際的用法。它會加載文件并在標(biāo)準(zhǔn)輸出中顯示文件內(nèi)容：
| ? // load the named file and dump its structure to STDOUT void dump_to_stdout(const char* pFilename) { ???????TiXmlDocument doc(pFilename); ???????bool loadOkay = doc.LoadFile(); ???????if (loadOkay) ???????{ ???????????????printf("\n%s:\n", pFilename); ???????????????dump_to_stdout( &doc ); // defined later in the tutorial ???????} ???????else ???????{ ???????????????printf("Failed to load file \"%s\"\n", pFilename); ???????} } |
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這是在 main() 函數(shù)中使用這個函數(shù)的簡單示例：
| ? int main(void) { ???????dump_to_stdout("example1.xml"); ???????return 0; } |
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Example 1 的 XML 是：
| ? <?xml version="1.0" ?> <Hello>World</Hello> |
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運行這個程序就可以將 XML 文件顯示在控制臺或 DOS 窗口中：
| ? DOCUMENT + DECLARATION + ELEMENT Hello ??+ TEXT[World] |
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在本指南的后面會給出 dump_to_stdout() 函數(shù)的定義，它對你了解如何遞歸遍歷一個 DOM 十分有用。
通過編程建立 XML 文檔
下面的函數(shù)可以建立 Example 1 文檔：
| ? void build_simple_doc( ) { ???????// Make xml: <?xml ..><Hello>World</Hello> ???????TiXmlDocument doc; ???????TiXmlDeclaration * decl = new TiXmlDeclaration( "1.0", "", "" ); ???????TiXmlElement * element = new TiXmlElement( "Hello" ); ???????TiXmlText * text = new TiXmlText( "World" ); ???????element->LinkEndChild( text ); ???????doc.LinkEndChild( decl ); ???????doc.LinkEndChild( element ); ???????doc.SaveFile( "madeByHand.xml" ); } |
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可以通過下面的調(diào)用來加載文件并將它顯示在控制臺上：
| ? dump_to_stdout("madeByHand.xml"); // this func defined later in the tutorial |
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你會發(fā)現(xiàn)它和 Example 1 是完全一樣的：
| ? madeByHand.xml: Document + Declaration + Element [Hello] ??+ Text: [World] |
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下面這段代碼通過節(jié)點的建立和連接的不同順序生成一個完全相同的 XML DOM ：
| ? void write_simple_doc2( ) { ???????// same as write_simple_doc1 but add each node ???????// as early as possible into the tree. ? ???????TiXmlDocument doc; ???????TiXmlDeclaration * decl = new TiXmlDeclaration( "1.0", "", "" ); ???????doc.LinkEndChild( decl ); ??????? ???????TiXmlElement * element = new TiXmlElement( "Hello" ); ???????doc.LinkEndChild( element ); ??????? ???????TiXmlText * text = new TiXmlText( "World" ); ???????element->LinkEndChild( text ); ??????? ???????doc.SaveFile( "madeByHand2.xml" ); } |
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這兩段代碼生成的是同一段 XML ，如下：
| ? <?xml version="1.0" ?> <Hello>World</Hello> |
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也就是這種結(jié)構(gòu)形式：
| ? DOCUMENT + DECLARATION + ELEMENT Hello ??+ TEXT[World] |
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屬性
很簡單就可以給一個已經(jīng)存在的節(jié)點設(shè)置屬性：
| ? window = new TiXmlElement( "Demo" ); window->SetAttribute("name", "Circle"); window->SetAttribute("x", 5); window->SetAttribute("y", 15); window->SetDoubleAttribute("radius", 3.14159); |
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你也可以使用 TiXmlAttribute 對象來做這件事。
下面這段代碼給出了一種（并非僅此一種）如何得到一個元素的所有屬性，然后打印出名字和字符串值的方法，并且，如果這些值可以轉(zhuǎn)換成整形或浮點型，那么把他們也打印出來：
| ? // print all attributes of pElement. // returns the number of attributes printed int dump_attribs_to_stdout(TiXmlElement* pElement, unsigned int indent) { ????if ( !pElement ) return 0; ????TiXmlAttribute* pAttrib=pElement->FirstAttribute(); ????int i=0; ????int ival; ????double dval; ????const char* pIndent=getIndent(indent); ????printf("\n"); ????while (pAttrib) ????{ ????????printf( "%s%s: value=[%s]", pIndent, pAttrib->Name(), pAttrib->Value()); ????????if (pAttrib->QueryIntValue(&ival)==TIXML_SUCCESS) printf( " int=%d", ival); ????????if (pAttrib->QueryDoubleValue(&dval)==TIXML_SUCCESS) printf( " d=%1.1f", dval); ????????printf( "\n" ); ????????i++; ????????pAttrib=pAttrib->Next(); ????} ????return i; } |
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將文檔寫入文件
將建立好的 DOM 寫入一個文件很簡單：
| ? doc.SaveFile( saveFilename ); |
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回想一下 example 4：
| ? <?xml version="1.0" ?> <MyApp> ????<!-- Settings for MyApp --> ????<Messages> ????????<Welcome>Welcome to MyApp</Welcome> ????????<Farewell>Thank you for using MyApp</Farewell> ????</Messages> ????<Windows> ????????<Window name="MainFrame" x="5" y="15" w="400" h="250" /> ????</Windows> ????<Connection ip="192.168.0.1" timeout="123.456000" /> </MyApp> |
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下面的函數(shù)用來建立這個 DOM 并把它寫進(jìn)一份名為 "appsettings.xml" 的文件中：
| ? void write_app_settings_doc( ) { ???????TiXmlDocument doc; ???????TiXmlElement* msg; ???????TiXmlDeclaration* decl = new TiXmlDeclaration( "1.0", "", "" ); ???????doc.LinkEndChild( decl ); ? ???????TiXmlElement * root = new TiXmlElement( "MyApp" ); ???????doc.LinkEndChild( root ); ? ???????TiXmlComment * comment = new TiXmlComment(); ???????comment->SetValue(" Settings for MyApp " ); ???????root->LinkEndChild( comment ); ? ???????TiXmlElement * msgs = new TiXmlElement( "Messages" ); ???????root->LinkEndChild( msgs ); ? ???????msg = new TiXmlElement( "Welcome" ); ???????msg->LinkEndChild( new TiXmlText( "Welcome to MyApp" )); ???????msgs->LinkEndChild( msg ); ? ???????msg = new TiXmlElement( "Farewell" ); ???????msg->LinkEndChild( new TiXmlText( "Thank you for using MyApp" )); ???????msgs->LinkEndChild( msg ); ? ???????TiXmlElement * windows = new TiXmlElement( "Windows" ); ???????root->LinkEndChild( windows ); ? ???????TiXmlElement * window; ???????window = new TiXmlElement( "Window" ); ???????windows->LinkEndChild( window ); ???????window->SetAttribute("name", "MainFrame"); ???????window->SetAttribute("x", 5); ???????window->SetAttribute("y", 15); ???????window->SetAttribute("w", 400); ???????window->SetAttribute("h", 250); ? ???????TiXmlElement * cxn = new TiXmlElement( "Connection" ); ???????root->LinkEndChild( cxn ); ???????cxn->SetAttribute("ip", "192.168.0.1"); ???????cxn->SetDoubleAttribute("timeout", 123.456); // floating point attrib ??????? ???????dump_to_stdout( &doc ); ???????doc.SaveFile( "appsettings.xml" ); } |
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通過 dump_to_stdout() 函數(shù)可以顯示這個結(jié)構(gòu)：
| ? Document + Declaration + Element [MyApp] ?(No attributes) ??+ Comment: [ Settings for MyApp ] ??+ Element [Messages] ?(No attributes) ????+ Element [Welcome] ?(No attributes) ??????+ Text: [Welcome to MyApp] ????+ Element [Farewell] ?(No attributes) ??????+ Text: [Thank you for using MyApp] ??+ Element [Windows] ?(No attributes) ????+ Element [Window] ??????+ name: value=[MainFrame] ??????+ x: value=[5] int=5 d=5.0 ??????+ y: value=[15] int=15 d=15.0 ??????+ w: value=[400] int=400 d=400.0 ??????+ h: value=[250] int=250 d=250.0 ??????5 attributes ??+ Element [Connection] ????+ ip: value=[192.168.0.1] int=192 d=192.2 ????+ timeout: value=[123.456000] int=123 d=123.5 ????2 attributes |
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很高興在默認(rèn)的情況下， TinyXml 用其他的 API 所謂的“優(yōu)美”格式來寫 XML ，它修改元素文字的空白，然后用嵌套層次的方式顯示這棵樹。
我沒有注意到在寫文件的時候是否有辦法關(guān)掉縮排，但是這肯定很容易。
[ Lee：在 STL 模式下很容易，只要使用 cout << myDoc 就可以了。非 STL 模式通常是“優(yōu)美”格式的。加入一個“開關(guān)”會是一個不錯的特性，并且已經(jīng)這么做了。]
XML 與 C++ 對象之間的轉(zhuǎn)換
介紹
這個示例假定你正要加載你的應(yīng)用設(shè)置并把它們保存在 XML 文件中，就像 example4.xml 那樣。
有許多辦法可以完成這件事。例如，看一看 TinyBind 這個工程，你可以在這里找到它：http://sourceforge.net/projects/tinybind
本節(jié)給出一個使用 XML 來加載并保存一個基本的對象結(jié)構(gòu)的淺顯易懂的方法。
建立你的對象類
先從下面的這些基類入手：
| ? #include <string> #include <map> using namespace std; ? typedef std::map<std::string,std::string> MessageMap; ? // a basic window abstraction - demo purposes only class WindowSettings { public: ???????int x,y,w,h; ???????string name; ? ???????WindowSettings() ???????????????: x(0), y(0), w(100), h(100), name("Untitled") ???????{ ???????} ? ???????WindowSettings(int x, int y, int w, int h, const string& name) ???????{ ???????????????this->x=x; ???????????????this->y=y; ???????????????this->w=w; ???????????????this->h=h; ???????????????this->name=name; ???????} }; ? class ConnectionSettings { public: ???????string ip; ???????double timeout; }; ? class AppSettings { public: ???????string m_name; ???????MessageMap m_messages; ???????list<WindowSettings> m_windows; ???????ConnectionSettings m_connection; ? ???????AppSettings() {} ? ???????void save(const char* pFilename); ???????void load(const char* pFilename); ??????? ???????// just to show how to do it ???????void setDemoValues() ???????{ ???????????????m_name="MyApp"; ???????????????m_messages.clear(); ???????????????m_messages["Welcome"]="Welcome to "+m_name; ???????????????m_messages["Farewell"]="Thank you for using "+m_name; ???????????????m_windows.clear(); ???????????????m_windows.push_back(WindowSettings(15,15,400,250,"Main")); ???????????????m_connection.ip="Unknown"; ???????????????m_connection.timeout=123.456; ???????} }; |
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這是一個簡化的 main() 函數(shù)，它演示了如何建立一個默認(rèn)設(shè)置的樹的對象，保存它以及重新載入它：
| ? int main(void) { ???????AppSettings settings; ??????? ???????settings.save("appsettings2.xml"); ???????settings.load("appsettings2.xml"); ???????return 0; } |
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下面這個 main() 函數(shù)演示了如何建立，修改，保存，還有加載一個結(jié)構(gòu)體：
| ? int main(void) { ???????// block: customise and save settings ???????{ ???????????????AppSettings settings; ???????????????settings.m_name="HitchHikerApp"; ???????????????settings.m_messages["Welcome"]="Don't Panic"; ???????????????settings.m_messages["Farewell"]="Thanks for all the fish"; ???????????????settings.m_windows.push_back(WindowSettings(15,25,300,250,"BookFrame")); ???????????????settings.m_connection.ip="192.168.0.77"; ???????????????settings.m_connection.timeout=42.0; ? ???????????????settings.save("appsettings2.xml"); ???????} ??????? ???????// block: load settings ???????{ ???????????????AppSettings settings; ???????????????settings.load("appsettings2.xml"); ???????????????printf("%s: %s\n", settings.m_name.c_str(), ???????????????????????settings.m_messages["Welcome"].c_str()); ???????????????WindowSettings & w=settings.m_windows.front(); ???????????????printf("%s: Show window '%s' at %d,%d (%d x %d)\n", ???????????????????????settings.m_name.c_str(), w.name.c_str(), w.x, w.y, w.w, w.h); ???????????????printf("%s: %s\n", settings.m_name.c_str(), settings.m_messages["Farewell"].c_str()); ???????} ???????return 0; } |
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當(dāng) save() 函數(shù)和 load() 函數(shù)完成后（在下面），運行這個 main() 函數(shù)，在控制臺會顯示：
| ? HitchHikerApp: Don't Panic HitchHikerApp: Show window 'BookFrame' at 15,25 (300 x 100) HitchHikerApp: Thanks for all the fish |
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編碼為 XML
有許多不同的方法來解決如何將它（一個結(jié)構(gòu)體）保存在文件中。比如：
| ? void AppSettings::save(const char* pFilename) { ???????TiXmlDocument doc; ???????TiXmlElement* msg; ???????TiXmlComment * comment; ???????string s; ????????TiXmlDeclaration* decl = new TiXmlDeclaration( "1.0", "", "" ); ???????doc.LinkEndChild( decl ); ? ???????TiXmlElement * root = new TiXmlElement(m_name.c_str()); ???????doc.LinkEndChild( root ); ? ???????comment = new TiXmlComment(); ???????s=" Settings for "+m_name+" "; ???????comment->SetValue(s.c_str()); ???????root->LinkEndChild( comment ); ? ???????// block: messages ???????{ ???????????????MessageMap::iterator iter; ? ???????????????TiXmlElement * msgs = new TiXmlElement( "Messages" ); ???????????????root->LinkEndChild( msgs ); ? ???????????????for (iter=m_messages.begin(); iter != m_messages.end(); iter++) ???????????????{ ???????????????????????const string & key=(*iter).first; ???????????????????????const string & value=(*iter).second; ???????????????????????msg = new TiXmlElement(key.c_str()); ???????????????????????msg->LinkEndChild( new TiXmlText(value.c_str())); ???????????????????????msgs->LinkEndChild( msg ); ???????????????} ???????} ? ???????// block: windows ???????{ ???????????????TiXmlElement * windowsNode = new TiXmlElement( "Windows" ); ???????????????root->LinkEndChild( windowsNode ); ? ???????????????list<WindowSettings>::iterator iter; ? ???????????????for (iter=m_windows.begin(); iter != m_windows.end(); iter++) ???????????????{ ???????????????????????const WindowSettings& w=*iter; ? ???????????????????????TiXmlElement * window; ???????????????????????window = new TiXmlElement( "Window" ); ???????????????????????windowsNode->LinkEndChild( window ); ???????????????????????window->SetAttribute("name", w.name.c_str()); ???????????????????????window->SetAttribute("x", w.x); ???????????????????????window->SetAttribute("y", w.y); ???????????????????????window->SetAttribute("w", w.w); ???????????????????????window->SetAttribute("h", w.h); ???????????????} ???????} ? ???????// block: connection ???????{ ???????????????TiXmlElement * cxn = new TiXmlElement( "Connection" ); ???????????????root->LinkEndChild( cxn ); ???????????????cxn->SetAttribute("ip", m_connection.ip.c_str()); ???????????????cxn->SetDoubleAttribute("timeout", m_connection.timeout); ???????} ? ???????doc.SaveFile(pFilename); } |
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運行這個修改過的 main() 函數(shù)會生成如下的文件：
| ? <?xml version="1.0" ?> <HitchHikerApp> ????<!-- Settings for HitchHikerApp --> ????<Messages> ????????<Farewell>Thanks for all the fish</Farewell> ????????<Welcome>Don't Panic</Welcome> ????</Messages> ????<Windows> ????????<Window name="BookFrame" x="15" y="25" w="300" h="250" /> ????</Windows> ????<Connection ip="192.168.0.77" timeout="42.000000" /> </HitchHikerApp> |
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從 XML 解碼
就像給一個對象編碼一樣，也有許多辦法可以把 XML 解碼為你自己的 C++ 對象結(jié)構(gòu)。下面的方法使用了 TiXmlHandles 類。
| ? void AppSettings::load(const char* pFilename) { ????TiXmlDocument doc(pFilename); ????if (!doc.LoadFile()) return; ????TiXmlHandle hDoc(&doc); ????TiXmlElement* pElem; ????TiXmlHandle hRoot(0); ????// block: name ????{ ????????pElem=hDoc.FirstChildElement().Element(); ????????// should always have a valid root but handle gracefully if it does ????????if (!pElem) return; ????????m_name=pElem->Value(); ????????// save this for later ????????hRoot=TiXmlHandle(pElem); ????} ????// block: string table ????{ ????????m_messages.clear(); // trash existing table ????????pElem=hRoot.FirstChild( "Messages" ).FirstChild().Element(); ????????for( pElem; pElem; pElem=pElem->NextSiblingElement()) ????????{ ????????????const char *pKey=pElem->Value(); ????????????const char *pText=pElem->GetText(); ????????????if (pKey && pText) ????????????{ ????????????????m_messages[pKey]=pText; ????????????} ????????} ????} ????// block: windows ????{ ????????m_windows.clear(); // trash existing list ????????TiXmlElement* pWindowNode=hRoot.FirstChild( "Windows" ).FirstChild().Element(); ????????for( pWindowNode; pWindowNode; pWindowNode=pWindowNode->NextSiblingElement()) ????????{ ????????????WindowSettings w; ????????????const char *pName=pWindowNode->Attribute("name"); ????????????if (pName) w.name=pName; ???????????? ????????????pWindowNode->QueryIntAttribute("x", &w.x); // If this fails, original value is left as-is ????????????pWindowNode->QueryIntAttribute("y", &w.y); ????????????pWindowNode->QueryIntAttribute("w", &w.w); ????????????pWindowNode->QueryIntAttribute("hh", &w.h); ????????????m_windows.push_back(w); ????????} ????} ????// block: connection ????{ ????????pElem=hRoot.FirstChild("Connection").Element(); ????????if (pElem) ????????{ ????????????m_connection.ip=pElem->Attribute("ip"); ????????????pElem->QueryDoubleAttribute("timeout",&m_connection.timeout); ????????} ????} } |
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dump_to_stdout() 函數(shù)的完整代碼
下面是一份復(fù)制粘貼過來的演示程序：加載任意一份 XML 文件，然后使用上面所說的遞歸遍歷的方式將 XML 結(jié)構(gòu)輸出到標(biāo)準(zhǔn)輸出中。
| ? // tutorial demo program #include "stdafx.h" #include "tinyxml.h" // ---------------------------------------------------------------------- // STDOUT dump and indenting utility functions // ---------------------------------------------------------------------- const unsigned int NUM_INDENTS_PER_SPACE=2; const char * getIndent( unsigned int numIndents ) { ????static const char * pINDENT=" + "; ????static const unsigned int LENGTH=strlen( pINDENT ); ????unsigned int n=numIndents*NUM_INDENTS_PER_SPACE; ????if ( n > LENGTH ) n = LENGTH; ????return &pINDENT[ LENGTH-n ]; } // same as getIndent but no "+" at the end const char * getIndentAlt( unsigned int numIndents ) { ????static const char * pINDENT=" "; ????static const unsigned int LENGTH=strlen( pINDENT ); ????unsigned int n=numIndents*NUM_INDENTS_PER_SPACE; ????if ( n > LENGTH ) n = LENGTH; ????return &pINDENT[ LENGTH-n ]; } int dump_attribs_to_stdout(TiXmlElement* pElement, unsigned int indent) { ????if ( !pElement ) return 0; ????TiXmlAttribute* pAttrib=pElement->FirstAttribute(); ????int i=0; ????int ival; ????double dval; ????const char* pIndent=getIndent(indent); ????printf("\n"); ????while (pAttrib) ????{ ????????printf( "%s%s: value=[%s]", pIndent, pAttrib->Name(), pAttrib->Value()); ????????if (pAttrib->QueryIntValue(&ival)==TIXML_SUCCESS) printf( " int=%d", ival); ????????if (pAttrib->QueryDoubleValue(&dval)==TIXML_SUCCESS) printf( " d=%1.1f", dval); ????????printf( "\n" ); ????????i++; ????????pAttrib=pAttrib->Next(); ????} ????return i;???? } void dump_to_stdout( TiXmlNode* pParent, unsigned int indent = 0 ) { ????if ( !pParent ) return; ????TiXmlNode* pChild; ????TiXmlText* pText; ????int t = pParent->Type(); ????printf( "%s", getIndent(indent)); ????int num; ????switch ( t ) ????{ ????case TiXmlNode::DOCUMENT: ????????printf( "Document" ); ????????break; ????case TiXmlNode::ELEMENT: ????????printf( "Element [%s]", pParent->Value() ); ????????num=dump_attribs_to_stdout(pParent->ToElement(), indent+1); ????????switch(num) ????????{ ????????????case 0: printf( " (No attributes)"); break; ????????????case 1: printf( "%s1 attribute", getIndentAlt(indent)); break; ????????????default: printf( "%s%d attributes", getIndentAlt(indent), num); break; ????????} ????????break; ????case TiXmlNode::COMMENT: ????????printf( "Comment: [%s]", pParent->Value()); ????????break; ????case TiXmlNode::UNKNOWN: ????????printf( "Unknown" ); ????????break; ????case TiXmlNode::TEXT: ????????pText = pParent->ToText(); ????????printf( "Text: [%s]", pText->Value() ); ????????break; ????case TiXmlNode::DECLARATION: ????????printf( "Declaration" ); ????????break; ????default: ????????break; ????} ????printf( "\n" ); ????for ( pChild = pParent->FirstChild(); pChild != 0; pChild = pChild->NextSibling()) ????{ ????????dump_to_stdout( pChild, indent+1 ); ????} } // load the named file and dump its structure to STDOUT void dump_to_stdout(const char* pFilename) { ????TiXmlDocument doc(pFilename); ????bool loadOkay = doc.LoadFile(); ????if (loadOkay) ????{ ????????printf("\n%s:\n", pFilename); ????????dump_to_stdout( &doc ); // defined later in the tutorial ????} ????else ????{ ????????printf("Failed to load file \"%s\"\n", pFilename); ????} } // ---------------------------------------------------------------------- // main() for printing files named on the command line // ---------------------------------------------------------------------- int main(int argc, char* argv[]) { ????for (int i=1; i<argc; i++) ????{ ????????dump_to_stdout(argv[i]); ????} ????return 0; } |
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在命令行或 DOS 窗口中這樣運行它，比如：
| ? C:\dev\tinyxml> Debug\tinyxml_1.exe example1.xml ? example1.xml: Document + Declaration + Element [Hello] ?(No attributes) ??+ Text: [World] |
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作者以及變動
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由 Ellers 于2005年4月~6月編寫
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由 Lee Thomason 于2005年9月整理入 doc 文檔中
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2005年10月由 Ellers 進(jìn)行更新
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因翻譯倉促，水平有限，文中如有疏漏或錯誤，請不吝賜教。聯(lián)系作者：
轉(zhuǎn)載于:https://www.cnblogs.com/lancidie/archive/2010/12/12/1903553.html
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