Use XML files as multi-tree scripts

Currently, many software configurations, including the configuration files of the game UI, are in XML format.

There are a lot of open-source XML libraries, such as C ++ xerces, but this library is large and simple XML parsing is enough to use the tinyxml library.

Download: http://sourceforge.net/projects/tinyxml

There are also six files in it. If you have trouble, you can directly generate a lib and directly use the header file.

 

I wrote a parser using tinyxml for the multi-tree mentioned above:

# Ifndef xmlscriptparser_h _ <br/> # define xmlscriptparser_h _ </P> <p> # include <iostream> <br/> # include <string> </P> <p> # include "tree. HPP "<br/> # include" tinyxml. H "</P> <p> namespace util {<br/> using namespace kptree; </P> <p> template <class datatype> <br/> class xmlscriptparser: public tree <datatype> <br/>{< br/> STD: String file_name; // XML Script Name <br/> STD: String m_name; // name of the Multi-tree <br/> Public: <br/> T Ypedef datatype type; <br/> xmlscriptparser (STD: string name); <br/> virtual ~ Xmlscriptparser () {}; </P> <p> bool loadxmlscript (); <br/> protected: <br/> bool recursparse (tixmlelement * ptreenode, pre_order_iterator & parent ); <br/>}; </P> <p> template <class datatype> <br/> xmlscriptparser <datatype >:: xmlscriptparser (STD: string name) <br/>: file_name (name) <br/>{}</P> <p> template <class datatype> <br/> bool xmlscriptparser <datatype> :: loadxmlscript () <br/>{< br/> tixmldocument DOC (file_name. C_str (); <br/> If (! Doc. loadFile () <br/> return false; </P> <p> tixmlhandle hdoc (& Doc); <br/> tixmlelement * pelem; <br/> tixmlhandle hroot (0); </P> <p> // block: Name <br/> pelem = hdoc. firstchildelement (). element (); <br/> // shoshould always have a valid root but handle gracefully if it does <br/> If (! Pelem) <br/> return false; <br/> m_name = pelem-> value (); // m_name = "htree" </P> <p> // save this for later <br/> hroot = tixmlhandle (pelem ); </P> <p> // block: nodes </P> <p> tixmlelement * ptreenode = hroot. firstchild ("Node "). element (); </P> <p> type node; <br/> // read the name of the current node: <br/> const char * pname = ptreenode-> attribute ("name"); <br/> If (pname) <br/> node. name = pname; <br/> // read the type of the current node: <br/> const char * ptype = ptreenode-> attribute ("type "); // "root" <br/> If (ptype) <br/> node. type = ptype; </P> <p> pre_order_iterator parent = begin (); <br/> parent = insert (parent, node ); </P> <p> // parse the XML file <br/> return recursparse (ptreenode, parent ); <br/>}</P> <p> template <class datatype> <br/> bool xmlscriptparser <datatype >:: recursparse (tixmlelement * ptreenode, pre_order_iterator & parent) <br/>{< br/> If (ptreenode = NULL) <br/> return true; </P> <p> // process block can also be placed outside the loop, which seems to be slightly different </P> <p> for (ptreenode = ptreenode-> firstchildelement (); <br/> ptreenode; <br/> ptreenode = ptreenode-> nextsiblingelement () <br/>{< br/>{// process block <br/> type node; </P> <p> // read the name of the current node: <br/> const char * pname = ptreenode-> attribute ("name "); <br/> If (pname) node. name = pname; <br/> // read the type of the current node: <br/> const char * ptype = ptreenode-> attribute ("type "); <br/> If (ptype) node. type = ptype; </P> <p> pre_order_iterator child = append_child (parent, node ); <br/> // construct a type object to pass in the append_child function </P> <p> recursparse (ptreenode, child ); <br/>}</P> <p> return true; <br/>}</P> <p> /////////////////////// //////////////////////////////////////// ///////// <br/> // 4/29/2009-ryf <br/> // XML script Parsing is implemented, it is not necessary to write ^ _ ^ </P> <p> # endif

 

Test code:

 Xmlscriptparser <joint> Parser ("tree. XML "); <br/> parser. loadxmlscript (); <br/> typedef scriptparser <joint >:: iterator myiter; <br/> for (myiter it = parser. begin (); it! = Parser. end (); ++ it) <br/>{< br/> cout <"type =" <(* it ). type <"/t"; <br/> cout <"name =" <(* it ). name <"/N"; <br/>} cout <Endl;

 

The new XML script file is as follows:

<? XML version = "1.0" encoding = "UTF-8"?> <Br/> <! --- For the use of building a htree --> <br/> <ptree> <br/> <node type = "root" name = "1"> <br/> <Node type = "joint" name = "2"> <br/> <node type = "end" name = "3"> <br/> </node> </P> <p> <node type = "joint" name = "4"> <br/> <node type = "end" name = "5"> <br/> </node> <br/> <node type = "end" name = "6"> <br/> </node> <br/> <node type = "end" name =" 7 "> <br/> </node> <br/> <node type =" end "name =" 8 "> <br/> </node> <br/> </node> </P> <p> <node type = "end" name = "9"> <br/> </node> </P> <p> <node Type = "end" name = "10"> <br/> </node> </P> <p> <node type =" joint "name =" 11 "> <br/> <node type =" joint "name =" 12 "> <br/> <node type =" end "name =" 13 "> <br/> </node> <br/> <node type =" end "name =" 14 "> <br/> </node> <br/> <node Type = "end" name = "15"> <br/> </node> <br/> <node type = "end" name = "16"> <br/> </node> <br/> </node> </P> <p> <node type = "end" name = "17"> <br/> </node> <br/> <node type = "end" name = "18"> <br/> </node> <br/> <node type = "end" name =" 19 "> <br/> </node> <br/> </ptree>