1 files changed, 108 insertions, 0 deletions

diff --git a/src/xmlreader.cpp b/src/xmlreader.cpp
new file mode 100644
index 0000000..432ecc1
--- /dev/null
+++ b/src/xmlreader.cpp
@@ -0,0 +1,108 @@
+#include "xmlreader.h"
+
+Bu::XmlReader::XmlReader( Bu::Stream &sIn ) :
+        sIn( sIn )
+{
+}
+
+Bu::XmlReader::~XmlReader()
+{
+}
+
+const char *Bu::XmlReader::lookahead( int nAmnt )
+{
+        if( sBuf.getSize() >= nAmnt )
+                return sBuf.getStr();
+
+        int nNew = nAmnt - sBuf.getSize();
+        char *buf = new char[nNew];
+        sIn.read( buf, nNew );
+        sBuf.append( buf );
+
+        return sBuf.getStr();
+}
+
+void Bu::XmlReader::burn( int nAmnt )
+{
+        if( sBuf.getSize() < nAmnt )
+        {
+                lookahead( nAmnt );
+        }
+
+        sBuf.remove( nAmnt );
+}
+
+void Bu::XmlNode::checkString( const char *str, int nLen )
+{
+        if( !strncmp( str, lookahead( nLen ), nLen ) )
+        {
+                burn( nLen );
+                return;
+        }
+
+        throw Bu::ExceptionBase("Expected string '%s'", str );
+}
+
+Bu::XmlNode *Bu::XmlReader::read()
+{
+        prolog();
+}
+
+void Bu::XmlReader::prolog()
+{
+        XMLDecl();
+        Misc();
+}
+
+void Bu::XmlReader::XMLDecl()
+{
+        checkString("<?xml", 5 );
+        VersionInfo();
+        EncodingDecl();
+        SDDecl();
+        S();
+}
+
+void Bu::XmlReader::Misc()
+{
+}
+
+void Bu::XmlReader::S()
+{
+        for( int j = 0;; j++ )
+        {
+                char c = *lookahead( 1 );
+                if( c == 0x20 || c == 0x9 || c == 0xD || c == 0xA )
+                        continue;
+                if( j == 0 )
+                        printf("Error, expected whitespace!\n");
+                return;
+        }
+}
+
+void Bu::XmlReader::S()
+{
+        for(;;)
+        {
+                char c = *lookahead( 1 );
+                if( c == 0x20 || c == 0x9 || c == 0xD || c == 0xA )
+                        continue;
+                return;
+        }
+}
+
+void Bu::XmlReader::VersionInfo()
+{
+        S();
+        checkString("version", 7 );
+        
+}
+
+void Bu::XmlReader::Eq()
+{
+        Sq();
+        checkString("=", 1 );
+        Sq();
+}
+
+