1 files changed, 412 insertions, 0 deletions

diff --git a/src/xmlreader.cpp b/src/xmlreader.cpp
new file mode 100644
index 0000000..bb24157
--- /dev/null
+++ b/src/xmlreader.cpp
@@ -0,0 +1,412 @@
+#include "xmlreader.h"
+#include <string.h>
+
+XmlReader::XmlReader( bool bStrip )
+{
+        nError = 0;
+        this->bStrip = bStrip;
+}
+
+XmlReader::~XmlReader()
+{
+}
+
+#define gcall( x ) if( x == false ) return false;
+
+bool XmlReader::isws( char chr )
+{
+        return ( chr == ' ' || chr == '\t' || chr == '\n' || chr == '\r' );
+}
+
+bool XmlReader::ws()
+{
+        while( true )
+        {
+                char chr = getChar();
+                if( isws( chr ) )
+                {
+                        usedChar();
+                }
+                else
+                {
+                        return true;
+                }
+        }
+        return true;
+}
+
+bool XmlReader::buildDoc()
+{
+        // take care of initial whitespace
+        gcall( ws() );
+        gcall( node() );
+
+        return true;
+}
+
+bool XmlReader::node()
+{
+        gcall( startNode() )
+
+        // At this point, we are closing the startNode
+        char chr = getChar();
+        if( chr == '>' )
+        {
+                usedChar();
+
+                // Now we process the guts of the node.
+                gcall( content() );
+        }
+        else if( chr == '/' )
+        {
+                // This is the tricky one, one more validation, then we close the node.
+                usedChar();
+                if( getChar() == '>' )
+                {
+                        closeNode();
+                        usedChar();
+                }
+                else
+                {
+                        reportError("Close node in singleNode malformed!");
+                        return false;
+                }
+        }
+        else
+        {
+                reportError("Close node expected, but not found.");
+                return false;
+        }
+
+        return true;
+}
+
+bool XmlReader::startNode()
+{
+        if( getChar() == '<' )
+        {
+                usedChar();
+
+                if( getChar() == '/' )
+                {
+                        // Heh, it's actually a close node, go figure
+                        FlexBuf fbName;
+                        usedChar();
+                        gcall( ws() );
+
+                        while( true )
+                        {
+                                char chr = getChar();
+                                if( isws( chr ) || chr == '>' )
+                                {
+                                        // Here we actually compare the name we got to the name
+                                        // we already set, they have to match exactly.
+                                        if( !strcasecmp( getCurrent()->getName(), fbName.getData() ) )
+                                        {
+                                                closeNode();
+                                                break;
+                                        }
+                                        else
+                                        {
+                                                reportError("Got a mismatched node close tag.");
+                                                return false;
+                                        }
+                                }
+                                else
+                                {
+                                        fbName.appendData( chr );
+                                        usedChar();
+                                }
+                        }
+
+                        gcall( ws() );
+                        if( getChar() == '>' )
+                        {
+                                // Everything is cool.
+                                usedChar();
+                        }
+                        else
+                        {
+                                reportError("Got extra junk data instead of node close tag.");
+                                return false;
+                        }
+                }
+                else
+                {
+                        // We're good, format is consistant
+                        addNode();
+
+                        // Skip extra whitespace
+                        gcall( ws() );
+                        gcall( name() );
+                        gcall( ws() );
+                        gcall( paramlist() );
+                        gcall( ws() );
+                }
+        }
+        else
+        {
+                reportError("Expected to find node opening char, '<'.\n");
+                return false;
+        }
+
+        return true;
+}
+
+bool XmlReader::name()
+{
+        FlexBuf fbName;
+        
+        while( true )
+        {
+                char chr = getChar();
+                if( isws( chr ) || chr == '>' || chr == '/' )
+                {
+                        setName( fbName.getData() );
+                        return true;
+                }
+                else
+                {
+                        fbName.appendData( chr );
+                        usedChar();
+                }
+        }
+
+        return true;
+}
+
+bool XmlReader::paramlist()
+{
+        while( true )
+        {
+                char chr = getChar();
+                if( chr == '/' || chr == '>' )
+                {
+                        return true;
+                }
+                else
+                {
+                        gcall( param() );
+                        gcall( ws() );
+                }
+        }
+        
+        return true;
+}
+
+char XmlReader::getEscape()
+{
+        // Right now, we just do # escapes...
+        if( getChar( 1 ) == '#' )
+        {
+                usedChar();
+                usedChar();
+                char buf[4];
+                int j = 0;
+                for( j = 0; getChar() != ';'; j++ )
+                {
+                        buf[j] = getChar();
+                        usedChar();
+                }
+                usedChar();
+                buf[j] = '\0';
+                return (char)atoi( buf );
+        }
+        else
+        {
+                return '\0';
+        }
+}
+
+bool XmlReader::param()
+{
+        FlexBuf fbName;
+        FlexBuf fbValue;
+
+        while( true )
+        {
+                char chr = getChar();
+                if( isws( chr ) || chr == '=' )
+                {
+                        break;
+                }
+                else
+                {
+                        fbName.appendData( chr );
+                        usedChar();
+                }
+        }
+
+        gcall( ws() );
+
+        if( getChar() == '=' )
+        {
+                usedChar();
+
+                gcall( ws() );
+
+                char chr = getChar();
+                if( chr == '"' )
+                {
+                        // Better quoted rhs
+                        usedChar();
+
+                        while( true )
+                        {
+                                chr = getChar();
+                                if( chr == '"' )
+                                {
+                                        usedChar();
+                                        addProperty( fbName.getData(), fbValue.getData() );
+                                        return true;
+                                }
+                                else
+                                {
+                                        if( chr == '&' )
+                                        {
+                                                chr = getEscape();
+                                                if( chr == '\0' ) return false;
+                                                fbValue.appendData( chr );
+                                        }
+                                        else
+                                        {
+                                                fbValue.appendData( chr );
+                                                usedChar();
+                                        }
+                                }
+                        }
+                }
+                else
+                {
+                        // Simple one-word rhs
+                        while( true )
+                        {
+                                chr = getChar();
+                                if( isws( chr ) || chr == '/' || chr == '>' )
+                                {
+                                        addProperty( fbName.getData(), fbValue.getData() );
+                                        return true;
+                                }
+                                else
+                                {
+                                        if( chr == '&' )
+                                        {
+                                                chr = getEscape();
+                                                if( chr == '\0' ) return false;
+                                                fbValue.appendData( chr );
+                                        }
+                                        else
+                                        {
+                                                fbValue.appendData( chr );
+                                                usedChar();
+                                        }
+                                }
+                        }
+                }
+        }
+        else
+        {
+                reportError("Expected an equals to seperate the params.");
+                return false;
+        }
+
+        return true;
+}
+
+bool XmlReader::content()
+{
+        FlexBuf fbContent;
+
+        if( bStrip ) gcall( ws() );
+
+        while( true )
+        {
+                char chr = getChar();
+                if( chr == '<' )
+                {
+                        if( getChar(1) == '/' )
+                        {
+                                if( fbContent.getLength() > 0 )
+                                {
+                                        if( bStrip )
+                                        {
+                                                int j;
+                                                for( j = fbContent.getLength()-1; isws(fbContent.getData()[j]); j-- );
+                                                ((char *)fbContent.getData())[j+1] = '\0';
+                                        }
+                                        setContent( fbContent.getData() );
+                                }
+                                usedChar();
+                                usedChar();
+                                gcall( ws() );
+                                FlexBuf fbName;
+                                while( true )
+                                {
+                                        chr = getChar();
+                                        if( isws( chr ) || chr == '>' )
+                                        {
+                                                if( !strcasecmp( getCurrent()->getName(), fbName.getData() ) )
+                                                {
+                                                        closeNode();
+                                                        break;
+                                                }
+                                                else
+                                                {
+                                                        reportError("Mismatched close tag found.");
+                                                        return false;
+                                                }
+                                        }
+                                        else
+                                        {
+                                                fbName.appendData( chr );
+                                                usedChar();
+                                        }
+                                }
+                                gcall( ws() );
+                                if( getChar() == '>' )
+                                {
+                                        usedChar();
+                                        return true;
+                                }
+                                else
+                                {
+                                        reportError("Malformed close tag.");
+                                        return false;
+                                }
+                        }
+                        else
+                        {
+                                if( fbContent.getLength() > 0 )
+                                {
+                                        if( bStrip )
+                                        {
+                                                int j;
+                                                for( j = fbContent.getLength()-1; isws(fbContent.getData()[j]); j-- );
+                                                ((char *)fbContent.getData())[j+1] = '\0';
+                                        }
+                                        setContent( fbContent.getData() );
+                                        fbContent.clearData();
+                                }
+                                gcall( node() );
+                        }
+
+                        if( bStrip ) gcall( ws() );
+                }
+                else
+                {
+                        fbContent.appendData( chr );
+                        usedChar();
+                }
+        }
+}
+
+void XmlReader::reportError( const char *sError )
+{
+        printf("XmlReader error: %s\n", sError );
+}
+
+int XmlReader::getError()
+{
+        return nError;
+}
+