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author | Daniel Wilhelm <daniel@wili.li> | 2014-04-18 17:12:17 +0200 |
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committer | Daniel Wilhelm <daniel@wili.li> | 2014-04-18 17:12:17 +0200 |
commit | b654dbfa5f3e4a4d02f72023f7c5895635aa6396 (patch) | |
tree | 8c1dfe7f638c0fc7afc1d08bc2fc0fd0f8646e5e /shared/tinyxml/readme.txt | |
parent | 3.17 (diff) | |
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diff --git a/shared/tinyxml/readme.txt b/shared/tinyxml/readme.txt deleted file mode 100644 index 89d9e8d3..00000000 --- a/shared/tinyxml/readme.txt +++ /dev/null @@ -1,530 +0,0 @@ -/** @mainpage - -<h1> TinyXML </h1> - -TinyXML is a simple, small, C++ XML parser that can be easily -integrated into other programs. - -<h2> What it does. </h2> - -In brief, TinyXML parses an XML document, and builds from that a -Document Object Model (DOM) that can be read, modified, and saved. - -XML stands for "eXtensible Markup Language." It allows you to create -your own document markups. Where HTML does a very good job of marking -documents for browsers, XML allows you to define any kind of document -markup, for example a document that describes a "to do" list for an -organizer application. XML is a very structured and convenient format. -All those random file formats created to store application data can -all be replaced with XML. One parser for everything. - -The best place for the complete, correct, and quite frankly hard to -read spec is at <a href="http://www.w3.org/TR/2004/REC-xml-20040204/"> -http://www.w3.org/TR/2004/REC-xml-20040204/</a>. An intro to XML -(that I really like) can be found at -<a href="http://skew.org/xml/tutorial/">http://skew.org/xml/tutorial</a>. - -There are different ways to access and interact with XML data. -TinyXML uses a Document Object Model (DOM), meaning the XML data is parsed -into a C++ objects that can be browsed and manipulated, and then -written to disk or another output stream. You can also construct an XML document -from scratch with C++ objects and write this to disk or another output -stream. - -TinyXML is designed to be easy and fast to learn. It is two headers -and four cpp files. Simply add these to your project and off you go. -There is an example file - xmltest.cpp - to get you started. - -TinyXML is released under the ZLib license, -so you can use it in open source or commercial code. The details -of the license are at the top of every source file. - -TinyXML attempts to be a flexible parser, but with truly correct and -compliant XML output. TinyXML should compile on any reasonably C++ -compliant system. It does not rely on exceptions or RTTI. It can be -compiled with or without STL support. TinyXML fully supports -the UTF-8 encoding, and the first 64k character entities. - - -<h2> What it doesn't do. </h2> - -TinyXML doesn't parse or use DTDs (Document Type Definitions) or XSLs -(eXtensible Stylesheet Language.) There are other parsers out there -(check out www.sourceforge.org, search for XML) that are much more fully -featured. But they are also much bigger, take longer to set up in -your project, have a higher learning curve, and often have a more -restrictive license. If you are working with browsers or have more -complete XML needs, TinyXML is not the parser for you. - -The following DTD syntax will not parse at this time in TinyXML: - -@verbatim - <!DOCTYPE Archiv [ - <!ELEMENT Comment (#PCDATA)> - ]> -@endverbatim - -because TinyXML sees this as a !DOCTYPE node with an illegally -embedded !ELEMENT node. This may be addressed in the future. - -<h2> Tutorials. </h2> - -For the impatient, here is a tutorial to get you going. A great way to get started, -but it is worth your time to read this (very short) manual completely. - -- @subpage tutorial0 - -<h2> Code Status. </h2> - -TinyXML is mature, tested code. It is very stable. If you find -bugs, please file a bug report on the sourceforge web site -(www.sourceforge.net/projects/tinyxml). We'll get them straightened -out as soon as possible. - -There are some areas of improvement; please check sourceforge if you are -interested in working on TinyXML. - -<h2> Related Projects </h2> - -TinyXML projects you may find useful! (Descriptions provided by the projects.) - -<ul> -<li> <b>TinyXPath</b> (http://tinyxpath.sourceforge.net). TinyXPath is a small footprint - XPath syntax decoder, written in C++.</li> -<li> <b>TinyXML++</b> (http://code.google.com/p/ticpp/). TinyXML++ is a completely new - interface to TinyXML that uses MANY of the C++ strengths. Templates, - exceptions, and much better error handling.</li> -</ul> - -<h2> Features </h2> - -<h3> Using STL </h3> - -TinyXML can be compiled to use or not use STL. When using STL, TinyXML -uses the std::string class, and fully supports std::istream, std::ostream, -operator<<, and operator>>. Many API methods have both 'const char*' and -'const std::string&' forms. - -When STL support is compiled out, no STL files are included whatsoever. All -the string classes are implemented by TinyXML itself. API methods -all use the 'const char*' form for input. - -Use the compile time #define: - - TIXML_USE_STL - -to compile one version or the other. This can be passed by the compiler, -or set as the first line of "tinyxml.h". - -Note: If compiling the test code in Linux, setting the environment -variable TINYXML_USE_STL=YES/NO will control STL compilation. In the -Windows project file, STL and non STL targets are provided. In your project, -It's probably easiest to add the line "#define TIXML_USE_STL" as the first -line of tinyxml.h. - -<h3> UTF-8 </h3> - -TinyXML supports UTF-8 allowing to manipulate XML files in any language. TinyXML -also supports "legacy mode" - the encoding used before UTF-8 support and -probably best described as "extended ascii". - -Normally, TinyXML will try to detect the correct encoding and use it. However, -by setting the value of TIXML_DEFAULT_ENCODING in the header file, TinyXML -can be forced to always use one encoding. - -TinyXML will assume Legacy Mode until one of the following occurs: -<ol> - <li> If the non-standard but common "UTF-8 lead bytes" (0xef 0xbb 0xbf) - begin the file or data stream, TinyXML will read it as UTF-8. </li> - <li> If the declaration tag is read, and it has an encoding="UTF-8", then - TinyXML will read it as UTF-8. </li> - <li> If the declaration tag is read, and it has no encoding specified, then TinyXML will - read it as UTF-8. </li> - <li> If the declaration tag is read, and it has an encoding="something else", then TinyXML - will read it as Legacy Mode. In legacy mode, TinyXML will work as it did before. It's - not clear what that mode does exactly, but old content should keep working.</li> - <li> Until one of the above criteria is met, TinyXML runs in Legacy Mode.</li> -</ol> - -What happens if the encoding is incorrectly set or detected? TinyXML will try -to read and pass through text seen as improperly encoded. You may get some strange results or -mangled characters. You may want to force TinyXML to the correct mode. - -You may force TinyXML to Legacy Mode by using LoadFile( TIXML_ENCODING_LEGACY ) or -LoadFile( filename, TIXML_ENCODING_LEGACY ). You may force it to use legacy mode all -the time by setting TIXML_DEFAULT_ENCODING = TIXML_ENCODING_LEGACY. Likewise, you may -force it to TIXML_ENCODING_UTF8 with the same technique. - -For English users, using English XML, UTF-8 is the same as low-ASCII. You -don't need to be aware of UTF-8 or change your code in any way. You can think -of UTF-8 as a "superset" of ASCII. - -UTF-8 is not a double byte format - but it is a standard encoding of Unicode! -TinyXML does not use or directly support wchar, TCHAR, or Microsoft's _UNICODE at this time. -It is common to see the term "Unicode" improperly refer to UTF-16, a wide byte encoding -of unicode. This is a source of confusion. - -For "high-ascii" languages - everything not English, pretty much - TinyXML can -handle all languages, at the same time, as long as the XML is encoded -in UTF-8. That can be a little tricky, older programs and operating systems -tend to use the "default" or "traditional" code page. Many apps (and almost all -modern ones) can output UTF-8, but older or stubborn (or just broken) ones -still output text in the default code page. - -For example, Japanese systems traditionally use SHIFT-JIS encoding. -Text encoded as SHIFT-JIS can not be read by TinyXML. -A good text editor can import SHIFT-JIS and then save as UTF-8. - -The <a href="http://skew.org/xml/tutorial/">Skew.org link</a> does a great -job covering the encoding issue. - -The test file "utf8test.xml" is an XML containing English, Spanish, Russian, -and Simplified Chinese. (Hopefully they are translated correctly). The file -"utf8test.gif" is a screen capture of the XML file, rendered in IE. Note that -if you don't have the correct fonts (Simplified Chinese or Russian) on your -system, you won't see output that matches the GIF file even if you can parse -it correctly. Also note that (at least on my Windows machine) console output -is in a Western code page, so that Print() or printf() cannot correctly display -the file. This is not a bug in TinyXML - just an OS issue. No data is lost or -destroyed by TinyXML. The console just doesn't render UTF-8. - - -<h3> Entities </h3> -TinyXML recognizes the pre-defined "character entities", meaning special -characters. Namely: - -@verbatim - & & - < < - > > - " " - ' ' -@endverbatim - -These are recognized when the XML document is read, and translated to there -UTF-8 equivalents. For instance, text with the XML of: - -@verbatim - Far & Away -@endverbatim - -will have the Value() of "Far & Away" when queried from the TiXmlText object, -and will be written back to the XML stream/file as an ampersand. Older versions -of TinyXML "preserved" character entities, but the newer versions will translate -them into characters. - -Additionally, any character can be specified by its Unicode code point: -The syntax " " or " " are both to the non-breaking space characher. - -<h3> Printing </h3> -TinyXML can print output in several different ways that all have strengths and limitations. - -- Print( FILE* ). Output to a std-C stream, which includes all C files as well as stdout. - - "Pretty prints", but you don't have control over printing options. - - The output is streamed directly to the FILE object, so there is no memory overhead - in the TinyXML code. - - used by Print() and SaveFile() - -- operator<<. Output to a c++ stream. - - Integrates with standart C++ iostreams. - - Outputs in "network printing" mode without line breaks. Good for network transmission - and moving XML between C++ objects, but hard for a human to read. - -- TiXmlPrinter. Output to a std::string or memory buffer. - - API is less concise - - Future printing options will be put here. - - Printing may change slightly in future versions as it is refined and expanded. - -<h3> Streams </h3> -With TIXML_USE_STL on TinyXML supports C++ streams (operator <<,>>) streams as well -as C (FILE*) streams. There are some differences that you may need to be aware of. - -C style output: - - based on FILE* - - the Print() and SaveFile() methods - - Generates formatted output, with plenty of white space, intended to be as - human-readable as possible. They are very fast, and tolerant of ill formed - XML documents. For example, an XML document that contains 2 root elements - and 2 declarations, will still print. - -C style input: - - based on FILE* - - the Parse() and LoadFile() methods - - A fast, tolerant read. Use whenever you don't need the C++ streams. - -C++ style output: - - based on std::ostream - - operator<< - - Generates condensed output, intended for network transmission rather than - readability. Depending on your system's implementation of the ostream class, - these may be somewhat slower. (Or may not.) Not tolerant of ill formed XML: - a document should contain the correct one root element. Additional root level - elements will not be streamed out. - -C++ style input: - - based on std::istream - - operator>> - - Reads XML from a stream, making it useful for network transmission. The tricky - part is knowing when the XML document is complete, since there will almost - certainly be other data in the stream. TinyXML will assume the XML data is - complete after it reads the root element. Put another way, documents that - are ill-constructed with more than one root element will not read correctly. - Also note that operator>> is somewhat slower than Parse, due to both - implementation of the STL and limitations of TinyXML. - -<h3> White space </h3> -The world simply does not agree on whether white space should be kept, or condensed. -For example, pretend the '_' is a space, and look at "Hello____world". HTML, and -at least some XML parsers, will interpret this as "Hello_world". They condense white -space. Some XML parsers do not, and will leave it as "Hello____world". (Remember -to keep pretending the _ is a space.) Others suggest that __Hello___world__ should become -Hello___world. - -It's an issue that hasn't been resolved to my satisfaction. TinyXML supports the -first 2 approaches. Call TiXmlBase::SetCondenseWhiteSpace( bool ) to set the desired behavior. -The default is to condense white space. - -If you change the default, you should call TiXmlBase::SetCondenseWhiteSpace( bool ) -before making any calls to Parse XML data, and I don't recommend changing it after -it has been set. - - -<h3> Handles </h3> - -Where browsing an XML document in a robust way, it is important to check -for null returns from method calls. An error safe implementation can -generate a lot of code like: - -@verbatim -TiXmlElement* root = document.FirstChildElement( "Document" ); -if ( root ) -{ - TiXmlElement* element = root->FirstChildElement( "Element" ); - if ( element ) - { - TiXmlElement* child = element->FirstChildElement( "Child" ); - if ( child ) - { - TiXmlElement* child2 = child->NextSiblingElement( "Child" ); - if ( child2 ) - { - // Finally do something useful. -@endverbatim - -Handles have been introduced to clean this up. Using the TiXmlHandle class, -the previous code reduces to: - -@verbatim -TiXmlHandle docHandle( &document ); -TiXmlElement* child2 = docHandle.FirstChild( "Document" ).FirstChild( "Element" ).Child( "Child", 1 ).ToElement(); -if ( child2 ) -{ - // do something useful -@endverbatim - -Which is much easier to deal with. See TiXmlHandle for more information. - - -<h3> Row and Column tracking </h3> -Being able to track nodes and attributes back to their origin location -in source files can be very important for some applications. Additionally, -knowing where parsing errors occured in the original source can be very -time saving. - -TinyXML can tracks the row and column origin of all nodes and attributes -in a text file. The TiXmlBase::Row() and TiXmlBase::Column() methods return -the origin of the node in the source text. The correct tabs can be -configured in TiXmlDocument::SetTabSize(). - - -<h2> Using and Installing </h2> - -To Compile and Run xmltest: - -A Linux Makefile and a Windows Visual C++ .dsw file is provided. -Simply compile and run. It will write the file demotest.xml to your -disk and generate output on the screen. It also tests walking the -DOM by printing out the number of nodes found using different -techniques. - -The Linux makefile is very generic and runs on many systems - it -is currently tested on mingw and -MacOSX. You do not need to run 'make depend'. The dependecies have been -hard coded. - -<h3>Windows project file for VC6</h3> -<ul> -<li>tinyxml: tinyxml library, non-STL </li> -<li>tinyxmlSTL: tinyxml library, STL </li> -<li>tinyXmlTest: test app, non-STL </li> -<li>tinyXmlTestSTL: test app, STL </li> -</ul> - -<h3>Makefile</h3> -At the top of the makefile you can set: - -PROFILE, DEBUG, and TINYXML_USE_STL. Details (such that they are) are in -the makefile. - -In the tinyxml directory, type "make clean" then "make". The executable -file 'xmltest' will be created. - - - -<h3>To Use in an Application:</h3> - -Add tinyxml.cpp, tinyxml.h, tinyxmlerror.cpp, tinyxmlparser.cpp, tinystr.cpp, and tinystr.h to your -project or make file. That's it! It should compile on any reasonably -compliant C++ system. You do not need to enable exceptions or -RTTI for TinyXML. - - -<h2> How TinyXML works. </h2> - -An example is probably the best way to go. Take: -@verbatim - <?xml version="1.0" standalone=no> - <!-- Our to do list data --> - <ToDo> - <Item priority="1"> Go to the <bold>Toy store!</bold></Item> - <Item priority="2"> Do bills</Item> - </ToDo> -@endverbatim - -Its not much of a To Do list, but it will do. To read this file -(say "demo.xml") you would create a document, and parse it in: -@verbatim - TiXmlDocument doc( "demo.xml" ); - doc.LoadFile(); -@endverbatim - -And its ready to go. Now lets look at some lines and how they -relate to the DOM. - -@verbatim -<?xml version="1.0" standalone=no> -@endverbatim - - The first line is a declaration, and gets turned into the - TiXmlDeclaration class. It will be the first child of the - document node. - - This is the only directive/special tag parsed by TinyXML. - Generally directive tags are stored in TiXmlUnknown so the - commands wont be lost when it is saved back to disk. - -@verbatim -<!-- Our to do list data --> -@endverbatim - - A comment. Will become a TiXmlComment object. - -@verbatim -<ToDo> -@endverbatim - - The "ToDo" tag defines a TiXmlElement object. This one does not have - any attributes, but does contain 2 other elements. - -@verbatim -<Item priority="1"> -@endverbatim - - Creates another TiXmlElement which is a child of the "ToDo" element. - This element has 1 attribute, with the name "priority" and the value - "1". - -@verbatim -Go to the -@endverbatim - - A TiXmlText. This is a leaf node and cannot contain other nodes. - It is a child of the "Item" TiXmlElement. - -@verbatim -<bold> -@endverbatim - - - Another TiXmlElement, this one a child of the "Item" element. - -Etc. - -Looking at the entire object tree, you end up with: -@verbatim -TiXmlDocument "demo.xml" - TiXmlDeclaration "version='1.0'" "standalone=no" - TiXmlComment " Our to do list data" - TiXmlElement "ToDo" - TiXmlElement "Item" Attribtutes: priority = 1 - TiXmlText "Go to the " - TiXmlElement "bold" - TiXmlText "Toy store!" - TiXmlElement "Item" Attributes: priority=2 - TiXmlText "Do bills" -@endverbatim - -<h2> Documentation </h2> - -The documentation is build with Doxygen, using the 'dox' -configuration file. - -<h2> License </h2> - -TinyXML is released under the zlib license: - -This software is provided 'as-is', without any express or implied -warranty. In no event will the authors be held liable for any -damages arising from the use of this software. - -Permission is granted to anyone to use this software for any -purpose, including commercial applications, and to alter it and -redistribute it freely, subject to the following restrictions: - -1. The origin of this software must not be misrepresented; you must -not claim that you wrote the original software. If you use this -software in a product, an acknowledgment in the product documentation -would be appreciated but is not required. - -2. Altered source versions must be plainly marked as such, and -must not be misrepresented as being the original software. - -3. This notice may not be removed or altered from any source -distribution. - -<h2> References </h2> - -The World Wide Web Consortium is the definitive standard body for -XML, and their web pages contain huge amounts of information. - -The definitive spec: <a href="http://www.w3.org/TR/2004/REC-xml-20040204/"> -http://www.w3.org/TR/2004/REC-xml-20040204/</a> - -I also recommend "XML Pocket Reference" by Robert Eckstein and published by -OReilly...the book that got the whole thing started. - -<h2> Contributors, Contacts, and a Brief History </h2> - -Thanks very much to everyone who sends suggestions, bugs, ideas, and -encouragement. It all helps, and makes this project fun. A special thanks -to the contributors on the web pages that keep it lively. - -So many people have sent in bugs and ideas, that rather than list here -we try to give credit due in the "changes.txt" file. - -TinyXML was originally written by Lee Thomason. (Often the "I" still -in the documentation.) Lee reviews changes and releases new versions, -with the help of Yves Berquin, Andrew Ellerton, and the tinyXml community. - -We appreciate your suggestions, and would love to know if you -use TinyXML. Hopefully you will enjoy it and find it useful. -Please post questions, comments, file bugs, or contact us at: - -www.sourceforge.net/projects/tinyxml - -Lee Thomason, Yves Berquin, Andrew Ellerton -*/ |