tinyxml_8h-source.html

xml 简单解析器

<a name="l00262"></a>00262     <span class="comment">/*  Reads an XML name into the string provided. Returns</span>
<a name="l00263"></a>00263 <span class="comment">        a pointer just past the last character of the name,</span>
<a name="l00264"></a>00264 <span class="comment">        or 0 if the function has an error.</span>
<a name="l00265"></a>00265 <span class="comment">    */</span>
<a name="l00266"></a>00266     <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* ReadName( <span class="keyword">const</span> <span class="keywordtype">char</span>* p, TIXML_STRING* name, TiXmlEncoding encoding );
<a name="l00267"></a>00267 
<a name="l00268"></a>00268     <span class="comment">/*  Reads text. Returns a pointer past the given end tag.</span>
<a name="l00269"></a>00269 <span class="comment">        Wickedly complex options, but it keeps the (sensitive) code in one place.</span>
<a name="l00270"></a>00270 <span class="comment">    */</span>
<a name="l00271"></a>00271     <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* ReadText(    <span class="keyword">const</span> <span class="keywordtype">char</span>* in,             <span class="comment">// where to start</span>
<a name="l00272"></a>00272                                     TIXML_STRING* text,         <span class="comment">// the string read</span>
<a name="l00273"></a>00273                                     <span class="keywordtype">bool</span> ignoreWhiteSpace,      <span class="comment">// whether to keep the white space</span>
<a name="l00274"></a>00274                                     <span class="keyword">const</span> <span class="keywordtype">char</span>* endTag,         <span class="comment">// what ends this text</span>
<a name="l00275"></a>00275                                     <span class="keywordtype">bool</span> ignoreCase,            <span class="comment">// whether to ignore case in the end tag</span>
<a name="l00276"></a>00276                                     TiXmlEncoding encoding );   <span class="comment">// the current encoding</span>
<a name="l00277"></a>00277 
<a name="l00278"></a>00278     <span class="comment">// If an entity has been found, transform it into a character.</span>
<a name="l00279"></a>00279     <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* GetEntity( <span class="keyword">const</span> <span class="keywordtype">char</span>* in, <span class="keywordtype">char</span>* value, <span class="keywordtype">int</span>* length, TiXmlEncoding encoding );
<a name="l00280"></a>00280 
<a name="l00281"></a>00281     <span class="comment">// Get a character, while interpreting entities.</span>
<a name="l00282"></a>00282     <span class="comment">// The length can be from 0 to 4 bytes.</span>
<a name="l00283"></a>00283     <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* GetChar( <span class="keyword">const</span> <span class="keywordtype">char</span>* p, <span class="keywordtype">char</span>* _value, <span class="keywordtype">int</span>* length, TiXmlEncoding encoding )
<a name="l00284"></a>00284     {
<a name="l00285"></a>00285         assert( p );
<a name="l00286"></a>00286         <span class="keywordflow">if</span> ( encoding == TIXML_ENCODING_UTF8 )
<a name="l00287"></a>00287         {
<a name="l00288"></a>00288             *length = utf8ByteTable[ *((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)p) ];
<a name="l00289"></a>00289             assert( *length &gt;= 0 &amp;&amp; *length &lt; 5 );
<a name="l00290"></a>00290         }
<a name="l00291"></a>00291         <span class="keywordflow">else</span>
<a name="l00292"></a>00292         {
<a name="l00293"></a>00293             *length = 1;
<a name="l00294"></a>00294         }
<a name="l00295"></a>00295 
<a name="l00296"></a>00296         <span class="keywordflow">if</span> ( *length == 1 )
<a name="l00297"></a>00297         {
<a name="l00298"></a>00298             <span class="keywordflow">if</span> ( *p == <span class="charliteral">'&amp;'</span> )
<a name="l00299"></a>00299                 <span class="keywordflow">return</span> GetEntity( p, _value, length, encoding );
<a name="l00300"></a>00300             *_value = *p;
<a name="l00301"></a>00301             <span class="keywordflow">return</span> p+1;
<a name="l00302"></a>00302         }
<a name="l00303"></a>00303         <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( *length )
<a name="l00304"></a>00304         {
<a name="l00305"></a>00305             <span class="comment">//strncpy( _value, p, *length );    // lots of compilers don't like this function (unsafe),</span>
<a name="l00306"></a>00306                                                 <span class="comment">// and the null terminator isn't needed</span>
<a name="l00307"></a>00307             <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i=0; p[i] &amp;&amp; i&lt;*length; ++i ) {
<a name="l00308"></a>00308                 _value[i] = p[i];
<a name="l00309"></a>00309             }
<a name="l00310"></a>00310             <span class="keywordflow">return</span> p + (*length);
<a name="l00311"></a>00311         }
<a name="l00312"></a>00312         <span class="keywordflow">else</span>
<a name="l00313"></a>00313         {
<a name="l00314"></a>00314             <span class="comment">// Not valid text.</span>
<a name="l00315"></a>00315             <span class="keywordflow">return</span> 0;
<a name="l00316"></a>00316         }
<a name="l00317"></a>00317     }
<a name="l00318"></a>00318 
<a name="l00319"></a>00319     <span class="comment">// Puts a string to a stream, expanding entities as it goes.</span>
<a name="l00320"></a>00320     <span class="comment">// Note this should not contian the '&lt;', '&gt;', etc, or they will be transformed into entities!</span>
<a name="l00321"></a>00321     <span class="keyword">static</span> <span class="keywordtype">void</span> PutString( <span class="keyword">const</span> TIXML_STRING&amp; str, TIXML_OSTREAM* out );
<a name="l00322"></a>00322 
<a name="l00323"></a>00323     <span class="keyword">static</span> <span class="keywordtype">void</span> PutString( <span class="keyword">const</span> TIXML_STRING&amp; str, TIXML_STRING* out );
<a name="l00324"></a>00324 
<a name="l00325"></a>00325     <span class="comment">// Return true if the next characters in the stream are any of the endTag sequences.</span>
<a name="l00326"></a>00326     <span class="comment">// Ignore case only works for english, and should only be relied on when comparing</span>
<a name="l00327"></a>00327     <span class="comment">// to English words: StringEqual( p, "version", true ) is fine.</span>
<a name="l00328"></a>00328     <span class="keyword">static</span> <span class="keywordtype">bool</span> StringEqual(    <span class="keyword">const</span> <span class="keywordtype">char</span>* p,
<a name="l00329"></a>00329                                 <span class="keyword">const</span> <span class="keywordtype">char</span>* endTag,
<a name="l00330"></a>00330                                 <span class="keywordtype">bool</span> ignoreCase,
<a name="l00331"></a>00331                                 TiXmlEncoding encoding );
<a name="l00332"></a>00332 
<a name="l00333"></a>00333     <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* errorString[ TIXML_ERROR_STRING_COUNT ];
<a name="l00334"></a>00334 
<a name="l00335"></a>00335     TiXmlCursor location;
<a name="l00336"></a>00336 
<a name="l00338"></a><a class="code" href="classTiXmlBase.html#p1">00338</a>     <span class="keywordtype">void</span>*           <a class="code" href="classTiXmlBase.html#p1">userData</a>;
<a name="l00339"></a>00339     
<a name="l00340"></a>00340     <span class="comment">// None of these methods are reliable for any language except English.</span>
<a name="l00341"></a>00341     <span class="comment">// Good for approximation, not great for accuracy.</span>
<a name="l00342"></a>00342     <span class="keyword">static</span> <span class="keywordtype">int</span> IsAlpha( <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> anyByte, TiXmlEncoding encoding );
<a name="l00343"></a>00343     <span class="keyword">static</span> <span class="keywordtype">int</span> IsAlphaNum( <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> anyByte, TiXmlEncoding encoding );
<a name="l00344"></a>00344     <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">int</span> ToLower( <span class="keywordtype">int</span> v, TiXmlEncoding encoding )
<a name="l00345"></a>00345     {
<a name="l00346"></a>00346         <span class="keywordflow">if</span> ( encoding == TIXML_ENCODING_UTF8 )
<a name="l00347"></a>00347         {
<a name="l00348"></a>00348             <span class="keywordflow">if</span> ( v &lt; 128 ) <span class="keywordflow">return</span> tolower( v );
<a name="l00349"></a>00349             <span class="keywordflow">return</span> v;
<a name="l00350"></a>00350         }
<a name="l00351"></a>00351         <span class="keywordflow">else</span>
<a name="l00352"></a>00352         {
<a name="l00353"></a>00353             <span class="keywordflow">return</span> tolower( v );
<a name="l00354"></a>00354         }
<a name="l00355"></a>00355     }
<a name="l00356"></a>00356     <span class="keyword">static</span> <span class="keywordtype">void</span> ConvertUTF32ToUTF8( <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> input, <span class="keywordtype">char</span>* output, <span class="keywordtype">int</span>* length );
<a name="l00357"></a>00357 
<a name="l00358"></a>00358 <span class="keyword">private</span>:
<a name="l00359"></a>00359     <a class="code" href="classTiXmlBase.html">TiXmlBase</a>( <span class="keyword">const</span> <a class="code" href="classTiXmlBase.html">TiXmlBase</a>&amp; );              <span class="comment">// not implemented.</span>
<a name="l00360"></a>00360     <span class="keywordtype">void</span> operator=( <span class="keyword">const</span> <a class="code" href="classTiXmlBase.html">TiXmlBase</a>&amp; base );    <span class="comment">// not allowed.</span>
<a name="l00361"></a>00361 
<a name="l00362"></a>00362     <span class="keyword">struct </span>Entity
<a name="l00363"></a>00363     {
<a name="l00364"></a>00364         <span class="keyword">const</span> <span class="keywordtype">char</span>*     str;
<a name="l00365"></a>00365         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>    strLength;
<a name="l00366"></a>00366         <span class="keywordtype">char</span>            chr;
<a name="l00367"></a>00367     };
<a name="l00368"></a>00368     <span class="keyword">enum</span>
<a name="l00369"></a>00369     {
<a name="l00370"></a>00370         NUM_ENTITY = 5,