diff --git a/src/wrapdaisy.cpp b/src/wrapdaisy.cpp
index 0be42f3..23b71ef 100644
--- a/src/wrapdaisy.cpp
+++ b/src/wrapdaisy.cpp
@@ -103,11 +103,9 @@ bool WrapDaisy::run (
         return false;
     }
 
-    std::string output, stdStylesheet, stdFileIn;
-    stdStylesheet = stylesheet.mb_str ( wxConvUTF8 );
-    stdFileIn = fileIn.mb_str ( wxConvUTF8 );
+    std::string output;
 
-    if ( !stdStylesheet.empty() ) // stylesheet found
+    if ( !stylesheet.empty() ) // stylesheet found
     {
         // #1: convert to canonical XHTML
 #if wxCHECK_VERSION(2,9,0)
@@ -126,7 +124,7 @@ bool WrapDaisy::run (
     
         WrapLibxml wrapLibxml;
             
-        bool success = wrapLibxml.xslt ( stdStylesheet, stdFileIn );
+        bool success = wrapLibxml.xslt ( stylesheet, fileIn );
        
         if ( !success )
         {
diff --git a/src/wraplibxml.cpp b/src/wraplibxml.cpp
index ee18e09..1a04ea3 100644
--- a/src/wraplibxml.cpp
+++ b/src/wraplibxml.cpp
@@ -29,6 +29,13 @@
 #include <wx/filesys.h>
 #include <wx/uri.h>
 
+#ifdef __WXMSW__ // Libxml supports utf8 file name on windows
+#define CONV(url) ( ( const char * ) ( url ).utf8_str() )
+#else
+#define CONV(url) ( ( const char * ) ( url ).mb_str ( wxConvLocal ) )
+#endif
+
+
 static xmlCatalogPtr catalog = NULL;
 
 class Initializer
@@ -105,12 +112,13 @@ WrapLibxml::~WrapLibxml()
 {
 }
 
-bool WrapLibxml::validate ( const std::string& fileName )
+bool WrapLibxml::validate ( const std::string& utf8DocBuf,
+		const wxString &docUrl )
 {
 	output = "";
 
-	xmlParserCtxtPtr ctxt;
-	xmlDocPtr docPtr;
+	xmlParserCtxtPtr ctxt = NULL;
+	xmlDocPtr docPtr = NULL;
 
 	ctxt = xmlNewParserCtxt();
 	if ( ctxt == NULL )
@@ -118,11 +126,11 @@ bool WrapLibxml::validate ( const std::string& fileName )
 		return false;
 	}
 
-	docPtr = xmlCtxtReadFile (
-	             ctxt,
-	             fileName.c_str(),
-	             NULL,
-	             ( netAccess ) ? XML_PARSE_DTDVALID : XML_PARSE_DTDVALID | XML_PARSE_NONET );
+	int flags = XML_PARSE_DTDVALID;
+	if ( !netAccess )
+		flags |= XML_PARSE_NONET;
+	docPtr = xmlCtxtReadMemory ( ctxt, utf8DocBuf.c_str(), utf8DocBuf.length(),
+			CONV ( docUrl ), "UTF-8", flags);
 
 	bool returnValue = docPtr != NULL && ctxt->valid != 0;
 
@@ -133,112 +141,140 @@ bool WrapLibxml::validate ( const std::string& fileName )
 }
 
 bool WrapLibxml::validateRelaxNG (
-    const std::string& schemaFileName,
-    const std::string& fileName )
+    const wxString &schemaFileName,
+    const std::string &utf8DocBuf,
+    const wxString &docUrl )
 {
 	output = "";
 
-	xmlRelaxNGValidCtxtPtr ctxtPtr;
-	xmlDocPtr docPtr;
-	xmlRelaxNGParserCtxtPtr schemaParserCtxtPtr;
-	xmlRelaxNGPtr schemaPtr;
+	bool returnValue = false;
+	xmlParserCtxtPtr ctxt = NULL;
+	xmlDocPtr docPtr = NULL;
+	xmlRelaxNGValidCtxtPtr ctxtPtr = NULL;
+	xmlRelaxNGParserCtxtPtr rngParserCtxt = NULL;
+	xmlRelaxNGPtr schemaPtr = NULL;
 
-	schemaParserCtxtPtr = xmlRelaxNGNewParserCtxt ( schemaFileName.c_str() );
-	if ( schemaParserCtxtPtr == NULL )
-		return false;
+	do {
+		rngParserCtxt = xmlRelaxNGNewParserCtxt ( CONV ( schemaFileName ) );
+		if ( rngParserCtxt == NULL )
+			return false;
 
-	schemaPtr = xmlRelaxNGParse ( schemaParserCtxtPtr );
-	if ( schemaPtr == NULL )
-	{
-		xmlRelaxNGFreeParserCtxt ( schemaParserCtxtPtr );
-		return false;
-	}
+		schemaPtr = xmlRelaxNGParse ( rngParserCtxt );
+		if ( schemaPtr == NULL )
+			break;
 
-	ctxtPtr = xmlRelaxNGNewValidCtxt ( schemaPtr );
-	if ( ctxtPtr == NULL )
-	{
-		xmlRelaxNGFree ( schemaPtr );
-		xmlRelaxNGFreeParserCtxt ( schemaParserCtxtPtr );
-		return false;
-	}
+		ctxtPtr = xmlRelaxNGNewValidCtxt ( schemaPtr );
+		if ( ctxtPtr == NULL )
+			break;
 
-	docPtr = xmlReadFile ( fileName.c_str(), NULL,
-	                       ( netAccess ) ? XML_PARSE_DTDLOAD : XML_PARSE_DTDLOAD | XML_PARSE_NONET );
-	if ( docPtr == NULL )
-	{
-		xmlRelaxNGFree ( schemaPtr );
-		xmlRelaxNGFreeValidCtxt ( ctxtPtr );
-		return false;
-	}
+		ctxt = xmlNewParserCtxt();
+		if ( ctxt == NULL )
+			break;
 
-	int res = xmlRelaxNGValidateDoc ( ctxtPtr, docPtr );
+		int flags = XML_PARSE_DTDVALID;
+		if ( !netAccess )
+			flags |= XML_PARSE_NONET;
+		docPtr = xmlCtxtReadMemory ( ctxt, utf8DocBuf.c_str(),
+					utf8DocBuf.length(), CONV ( docUrl ), "UTF-8", flags );
+		if ( docPtr == NULL )
+			break;
 
-	bool returnValue = ( res ) ? false : true;
+		int err = xmlRelaxNGValidateDoc ( ctxtPtr, docPtr );
+		returnValue = ( err ) ? false : true;
+
+	} while ( false );
 
 	xmlFreeDoc ( docPtr );
-	xmlRelaxNGFree ( schemaPtr );
+	xmlFreeParserCtxt ( ctxt );
 	xmlRelaxNGFreeValidCtxt ( ctxtPtr );
+	xmlRelaxNGFree ( schemaPtr );
+
 	return returnValue;
 }
 
 bool WrapLibxml::validateW3CSchema (
-    const std::string& schemaFileName,
-    const std::string& fileName )
+    const wxString &schemaFileName,
+    const std::string &utf8DocBuf,
+    const wxString &docUrl )
 {
 	output = "";
 
-	xmlSchemaValidCtxtPtr ctxtPtr;
-	xmlDocPtr docPtr;
-	xmlSchemaParserCtxtPtr schemaParserCtxtPtr;
-	xmlSchemaPtr schemaPtr;
+	bool returnValue = false;
 
-	schemaParserCtxtPtr = xmlSchemaNewParserCtxt ( schemaFileName.c_str() );
-	if ( schemaParserCtxtPtr == NULL )
-		return false;
+	xmlParserCtxtPtr ctxt = NULL;
+	xmlDocPtr docPtr = NULL;
+	xmlSchemaValidCtxtPtr ctxtPtr = NULL;
+	xmlSchemaParserCtxtPtr rngParserCtxt = NULL;
+	xmlSchemaPtr schemaPtr = NULL;
 
-	schemaPtr = xmlSchemaParse ( schemaParserCtxtPtr );
-	if ( schemaPtr == NULL )
-	{
-		xmlSchemaFreeParserCtxt ( schemaParserCtxtPtr );
-		return false;
-	}
+	do {
+		rngParserCtxt = xmlSchemaNewParserCtxt ( CONV ( schemaFileName ) );
+		if ( rngParserCtxt == NULL )
+			return false;
 
-	ctxtPtr = xmlSchemaNewValidCtxt ( schemaPtr );
-	if ( ctxtPtr == NULL )
-	{
-		xmlSchemaFree ( schemaPtr );
-		xmlSchemaFreeParserCtxt ( schemaParserCtxtPtr );
-		return false;
-	}
+		schemaPtr = xmlSchemaParse ( rngParserCtxt );
+		if ( schemaPtr == NULL )
+			break;
 
-	docPtr = xmlReadFile ( fileName.c_str(), NULL,
-	                       ( netAccess ) ? XML_PARSE_DTDLOAD : XML_PARSE_DTDLOAD | XML_PARSE_NONET );
-	if ( docPtr == NULL )
-	{
-		xmlSchemaFree ( schemaPtr );
-		xmlSchemaFreeValidCtxt ( ctxtPtr );
-		return false;
-	}
+		ctxtPtr = xmlSchemaNewValidCtxt ( schemaPtr );
+		if ( ctxtPtr == NULL )
+			break;
 
-	int res = xmlSchemaValidateDoc ( ctxtPtr, docPtr );
+		ctxt = xmlNewParserCtxt();
+		if ( ctxt == NULL )
+			break;
 
-	bool returnValue = ( res ) ? false : true;
+		int flags = XML_PARSE_DTDLOAD;
+		if ( !netAccess )
+			flags |= XML_PARSE_NONET;
+		docPtr = xmlCtxtReadMemory ( ctxt, utf8DocBuf.c_str(),
+					utf8DocBuf.length(), CONV ( docUrl ), "UTF-8", flags );
+		if ( docPtr == NULL )
+			break;
+
+		int res = xmlSchemaValidateDoc ( ctxtPtr, docPtr );
+
+		returnValue = ( res ) ? false : true;
+
+	} while ( false );
 
 	xmlFreeDoc ( docPtr );
+	xmlFreeParserCtxt ( ctxt );
 	xmlSchemaFree ( schemaPtr );
 	xmlSchemaFreeValidCtxt ( ctxtPtr );
+
 	return returnValue;
 }
 
 bool WrapLibxml::parse (
-    const std::string& fileName,
+    const std::string& utf8DocBuf,
+    const wxString &docUrl,
+    bool indent,
+    bool resolveEntities )
+{
+	return parse ( utf8DocBuf.c_str(), utf8DocBuf.length(), docUrl,
+			indent, resolveEntities );
+}
+
+bool WrapLibxml::parse (
+    const wxString &docUrl,
+    bool indent,
+    bool resolveEntities )
+{
+	return parse ( NULL, 0, docUrl, indent, resolveEntities );
+}
+
+bool WrapLibxml::parse (
+    const char *utf8DocBuf,
+    size_t utf8DocBufSize,
+    const wxString &docUrl,
     bool indent,
     bool resolveEntities )
 {
 	output = "";
 
-	xmlParserCtxtPtr ctxt;
-	xmlDocPtr docPtr;
+	xmlParserCtxtPtr ctxt = NULL;
+	xmlDocPtr docPtr = NULL;
 
 	ctxt = xmlNewParserCtxt();
 	if ( ctxt == NULL )
@@ -252,12 +288,11 @@ bool WrapLibxml::parse (
 	if ( !netAccess )
 		flags |= XML_PARSE_NONET;
 
-	docPtr = xmlCtxtReadFile (
-	             ctxt,
-	             fileName.c_str(),
-	             NULL,
-	             flags );
-
+	if ( utf8DocBuf != NULL)
+		docPtr = xmlCtxtReadMemory ( ctxt, utf8DocBuf, utf8DocBufSize,
+					CONV ( docUrl ), "UTF-8", flags );
+	else
+		docPtr = xmlCtxtReadFile ( ctxt, CONV ( docUrl ), NULL, flags );
 	if ( docPtr == NULL )
 	{
 		xmlFreeParserCtxt ( ctxt );
@@ -291,12 +326,13 @@ bool WrapLibxml::parse (
 	return returnValue;
 }
 
-bool WrapLibxml::xpath ( const std::string& path, const std::string& fileName )
+bool WrapLibxml::xpath ( const wxString &xpath, const std::string &utf8DocBuf,
+	    const wxString &docUrl )
 {
 	output = "";
 
-	xmlParserCtxtPtr ctxt;
-	xmlDocPtr docPtr;
+	xmlParserCtxtPtr ctxt = NULL;
+	xmlDocPtr docPtr = NULL;
 
 	xmlKeepBlanksDefault ( 0 );
 
@@ -306,9 +342,11 @@ bool WrapLibxml::xpath ( const std::string& path, const std::string& fileName )
 		return false;
 	}
 
-	docPtr = xmlCtxtReadFile (
+	docPtr = xmlCtxtReadMemory (
 	             ctxt,
-	             fileName.c_str(),
+	             utf8DocBuf.c_str(),
+	             utf8DocBuf.length(),
+	             CONV ( docUrl ),
 	             "UTF-8",
 	             //(netAccess) ? XML_PARSE_DTDLOAD | XML_PARSE_NOENT : XML_PARSE_DTDLOAD | XML_PARSE_NONET | XML_PARSE_NOENT
 	             XML_PARSE_NOENT | XML_PARSE_NONET | XML_PARSE_NSCLEAN
@@ -320,9 +358,9 @@ bool WrapLibxml::xpath ( const std::string& path, const std::string& fileName )
 		return false;
 	}
 
-	xmlXPathContextPtr context;
-	xmlXPathObjectPtr result;
-	xmlNodeSetPtr nodeset;
+	xmlXPathContextPtr context = NULL;
+	xmlXPathObjectPtr result = NULL;
+	xmlNodeSetPtr nodeset = NULL;
 
 	context = xmlXPathNewContext ( docPtr );
 	if ( !context )
@@ -336,7 +374,10 @@ bool WrapLibxml::xpath ( const std::string& path, const std::string& fileName )
 	xmlXPathRegisterNs ( context, ( xmlChar * ) "xhtml", ( xmlChar * ) "http://www.w3.org/1999/xhtml" );
 	// add others as necessary!
 
-	result = xmlXPathEvalExpression ( ( const xmlChar * ) path.c_str(), context );
+	result = xmlXPathEvalExpression (
+			// Since the encoding of the buffer is UTF-8
+			( const xmlChar * ) ( const char * ) xpath.utf8_str (),
+			context );
 
 	bool xpathIsValid = ( result ) ? true : false;
 
@@ -362,8 +403,8 @@ bool WrapLibxml::xpath ( const std::string& path, const std::string& fileName )
 		xmlBufferFree ( bufferPtr );
 		break;
 	}
-	if ( result )
-		xmlXPathFreeObject ( result );
+
+	xmlXPathFreeObject ( result );
 	xmlXPathFreeContext ( context );
 	xmlFreeDoc ( docPtr );
 	xmlFreeParserCtxt ( ctxt );
@@ -372,62 +413,98 @@ bool WrapLibxml::xpath ( const std::string& path, const std::string& fileName )
 }
 
 bool WrapLibxml::xslt (
-    const std::string& styleFileName,
-    const std::string& fileName
+    const wxString &styleFileName,
+    const std::string &utf8DocBuf,
+    const wxString &docUrl
+)
+{
+	return xslt ( styleFileName, utf8DocBuf.c_str(), utf8DocBuf.length(),
+			docUrl );
+}
+
+bool WrapLibxml::xslt (
+    const wxString &styleFileName,
+    const wxString &docUrl
+)
+{
+	return xslt ( styleFileName, NULL, 0, docUrl );
+}
+
+bool WrapLibxml::xslt (
+    const wxString &styleFileName,
+    const char *utf8DocBuf,
+    size_t utf8DocBufSize,
+    const wxString &docUrl
 )
 {
 	output = "";
 
-	xsltStylesheetPtr cur;
-	xmlDocPtr doc, res;
-	xmlSubstituteEntitiesDefault ( 1 );
-	xmlLoadExtDtdDefaultValue = 1;
-	cur = xsltParseStylesheetFile ( ( const xmlChar * ) styleFileName.c_str() );
-	if ( !cur )
-	{
-        nonParserError = "Cannot parse stylesheet";
-		return false;
-	}
+	bool ret = false;
 
-	doc = xmlParseFile ( fileName.c_str() );
-	if ( !doc )
-	{
-        nonParserError = "Cannot parse file";
-		xsltFreeStylesheet ( cur );
-		return false;
-	}
+	xsltStylesheetPtr cur = NULL;
+	xmlParserCtxtPtr ctxt = NULL;
+	xmlDocPtr doc = NULL, res = NULL;
 
-	// ensure entity warnings are treated as errors
-	if ( !getLastError().empty() )
-	{
-		xmlFreeDoc ( doc );
-		xsltFreeStylesheet ( cur );
-		return false;
-	}
+	do {
+		cur = xsltParseStylesheetFile ( ( const xmlChar * )
+				CONV ( styleFileName ) );
+		if ( !cur )
+		{
+			nonParserError = "Cannot parse stylesheet";
+			return false;
+		}
 
-	res = xsltApplyStylesheet ( cur, doc, NULL );
-	if ( !res )
-	{
-        nonParserError = "Cannot apply stylesheet";
-		xmlFreeDoc ( doc );
-		xsltFreeStylesheet ( cur );
-		return false;
-	}
+		ctxt = xmlNewParserCtxt();
+		if ( !ctxt )
+		{
+			nonParserError = _("Cannot create parser context");
+			break;
+		}
 
-	xmlChar *buf = NULL;
-	int size;
-	xmlDocDumpFormatMemoryEnc ( res, &buf, &size, "UTF-8", 1 );
-	if ( buf )
-	{
-		output.append ( ( char * ) buf, size );
-		xmlFree ( buf );
-	}
+		int flags = XML_PARSE_NOENT | XML_PARSE_DTDLOAD;
+		if ( !netAccess )
+			flags |= XML_PARSE_NONET;
+		if ( utf8DocBuf != NULL )
+			doc = xmlCtxtReadMemory ( ctxt, utf8DocBuf, utf8DocBufSize,
+						CONV ( docUrl ), "UTF-8", flags );
+		else
+			doc = xmlCtxtReadFile ( ctxt,  CONV ( docUrl ), NULL, flags );
+		if ( !doc )
+		{
+			nonParserError = "Cannot parse file";
+			break;
+		}
+
+		// ensure entity warnings are treated as errors
+		if ( !getLastError().empty() )
+			break;
+
+		res = xsltApplyStylesheet ( cur, doc, NULL );
+		if ( !res )
+		{
+			nonParserError = "Cannot apply stylesheet";
+			break;
+		}
+
+		xmlChar *buf = NULL;
+		int size;
+		xmlDocDumpFormatMemoryEnc ( res, &buf, &size, "UTF-8", 1 );
+		if ( buf )
+		{
+			output.append ( ( char * ) buf, size );
+			xmlFree ( buf );
+		}
+
+		ret = true;
+
+	} while ( false );
 
-	xsltFreeStylesheet ( cur );
 	xmlFreeDoc ( doc );
 	xmlFreeDoc ( res );
+	xmlFreeParserCtxt ( ctxt );
+	xsltFreeStylesheet ( cur );
 
-	return true;
+	return ret;
 }
 
 bool WrapLibxml::bufferWellFormed ( const std::string& buffer )
@@ -436,13 +513,11 @@ bool WrapLibxml::bufferWellFormed ( const std::string& buffer )
 	if ( !ctxt )
 		return false;
 
-	xmlDocPtr docPtr = xmlCtxtReadMemory (
-	                       ctxt,
-	                       buffer.c_str(),
-	                       buffer.size(),
-	                       "",
-	                       "UTF-8",
-	                       ( netAccess ) ? XML_PARSE_DTDLOAD : XML_PARSE_DTDLOAD | XML_PARSE_NONET );
+	int flags = XML_PARSE_DTDLOAD;
+	if ( !netAccess )
+		flags |= XML_PARSE_NONET;
+	xmlDocPtr docPtr = xmlCtxtReadMemory ( ctxt, buffer.c_str(), buffer.size(),
+			"", "UTF-8", flags );
 	bool returnValue = ( docPtr ) ? true : false;
 
 	xmlFreeDoc ( docPtr );
@@ -530,8 +605,8 @@ std::string WrapLibxml::getLastError()
 
 	if ( !err )
 	{
-        return ( nonParserError.empty() ) ? "" : nonParserError;
-    }
+		return nonParserError;
+	}
 
 	std::stringstream ss;
 	ss << "Error at line ";
diff --git a/src/wraplibxml.h b/src/wraplibxml.h
index 030fdef..f6d02b9 100644
--- a/src/wraplibxml.h
+++ b/src/wraplibxml.h
@@ -43,20 +43,41 @@ class WrapLibxml
 
 		WrapLibxml ( bool netAccessParameter = false );
 		virtual ~WrapLibxml();
-		bool validate ( const std::string& fileName );
+		bool validate ( const std::string &utf8DocBuf, const wxString &docUrl );
 		bool validateRelaxNG (
-		    const std::string& schemaFileName,
-		    const std::string& fileName );
+		    const wxString &schemaFileName,
+		    const std::string &utf8DocBuf,
+		    const wxString &docUrl );
 		bool validateW3CSchema (
-		    const std::string& schemaFileName,
-		    const std::string& fileName );
+		    const wxString &schemaFileName,
+		    const std::string &utf8DocBuf,
+		    const wxString &docUrl );
 		bool parse (
-		    const std::string& fileName,
+		    const std::string &utf8DocBuf,
+		    const wxString &docUrl,
 		    bool indent = false,
 		    bool resolveEntities = false );
-		bool bufferWellFormed ( const std::string& buffer );
-		bool xpath ( const std::string& path, const std::string& fileName );
-		bool xslt ( const std::string& styleFileName, const std::string& fileName );
+		bool parse (
+		    const wxString &fileName,
+		    bool indent = false,
+		    bool resolveEntities = false );
+		bool parse (
+		    const char *utf8DocBuf,
+		    size_t utf8DocBufSize,
+		    const wxString &fileName,
+		    bool indent = false,
+		    bool resolveEntities = false );
+		bool bufferWellFormed ( const std::string& utf8Buffer );
+		bool xpath ( const wxString &xpath, const std::string &utf8DocBuf,
+		    const wxString &docUrl );
+		bool xslt ( const wxString &styleFileName,
+		    const std::string &utf8DocBuf,
+		    const wxString &docUrl );
+		bool xslt ( const wxString &styleFileName, const wxString &docUrl );
+		bool xslt ( const wxString &styleFileName,
+		    const char *utf8DocBuf,
+		    size_t utf8DocBufSize,
+		    const wxString &docUrl );
 		std::string getLastError();
 		std::pair<int, int> getErrorPosition();
 		std::string getOutput();
diff --git a/src/xmlcopyeditor.cpp b/src/xmlcopyeditor.cpp
index 7212cf5..1fd19a6 100644
--- a/src/xmlcopyeditor.cpp
+++ b/src/xmlcopyeditor.cpp
@@ -2319,7 +2319,7 @@ void MyFrame::importMSWord ( const wxString& path )
 	if ( result != 5 ) // Word 2003 or later
 	{
 		std::auto_ptr<WrapLibxml> prettyPrinter ( new WrapLibxml ( libxmlNetAccess ) );
-		prettyPrinter->parse ( tempFileName.name(), true );
+		prettyPrinter->parse ( tempFileName.wideName(), true );
 		buffer = prettyPrinter->getOutput();
 		displayBuffer = wxString ( buffer.c_str(), wxConvUTF8, buffer.size() );
 	}
@@ -3773,34 +3773,13 @@ void MyFrame::OnValidateDTD ( wxCommandEvent& event )
 	if ( ( doc = getActiveDocument() ) == NULL )
 		return;
 
-	wxString fname = doc->getFullFileName();
-
-	WrapTempFileName wtfn ( fname );
-	if ( fname.empty() || doc->GetModify() )
-	{
-		wxString wideBuffer = doc->GetText();
-
-		std::string buffer = ( const char * ) wideBuffer.mb_str ( wxConvUTF8 );
-		if ( !saveRawUtf8 (
-		            wtfn.name(),
-		            buffer ) )
-		{
-			messagePane (
-			    _ ( "Cannot save temporary copy for validation; please save or discard changes" ),
-			    CONST_STOP );
-			return;
-		}
-		fname = wtfn.wideName();
-	}
-
-	std::string fnameLocal = ( const char * ) fname.mb_str ( wxConvLocal );
 
 	doc->clearErrorIndicators();
 	statusProgress ( _ ( "DTD Validation in progress..." ) );
 
 	auto_ptr<WrapLibxml> wl ( new WrapLibxml ( libxmlNetAccess ) );
-
-	if ( !wl->validate ( fnameLocal ) )
+	wxString fname = doc->getFullFileName();
+	if ( !wl->validate ( doc->myGetTextRaw(), fname ) )
 	{
 		std::string error = wl->getLastError();
 		wxString wideError = wxString ( error.c_str(), wxConvUTF8, error.size() );
@@ -3871,32 +3850,13 @@ void MyFrame::validateRelaxNG (
 	if ( !doc )
 		return;
 
-	WrapTempFileName wtfn ( fileName );
-	if ( fileName.empty() || doc->GetModify() )
-	{
-		wxString wideBuffer = doc->GetText();
-
-		std::string buffer = ( const char * ) wideBuffer.mb_str ( wxConvUTF8 );
-		if ( !saveRawUtf8 (
-		            wtfn.name(),
-		            buffer ) )
-		{
-			messagePane (
-			    _ ( "Cannot save temporary copy for validation; please save or discard changes" ),
-			    CONST_STOP );
-			return;
-		}
-		fileName = wtfn.wideName();
-	}
 
 	doc->clearErrorIndicators();
 	statusProgress ( _ ( "RELAX NG validation in progress..." ) );
 
 	auto_ptr<WrapLibxml> wl ( new WrapLibxml ( libxmlNetAccess ) );
 
-	std::string schemaFileNameLocal = ( const char * ) schemaName.mb_str ( wxConvLocal );
-	std::string fileNameLocal = ( const char * ) fileName.mb_str ( wxConvLocal );
-	if ( !wl->validateRelaxNG ( schemaFileNameLocal, fileNameLocal ) )
+	if ( !wl->validateRelaxNG ( schemaName, doc->myGetTextRaw(), fileName ) )
 	{
 		std::string error = wl->getLastError();
 		wxString wideError = wxString ( error.c_str(), wxConvUTF8, error.size() );
@@ -4089,28 +4049,14 @@ void MyFrame::OnXPath ( wxCommandEvent& event )
 	if ( ret == wxID_CANCEL )
 		return;
 	xpathExpression = dlg->GetValue();
-	std::string valUtf8 = ( const char * ) xpathExpression.mb_str ( wxConvUTF8 );
 
 	// fetch document contents
-	std::string rawBufferUtf8;
-	getRawText ( doc, rawBufferUtf8 );
-	if ( !XmlEncodingHandler::setUtf8 ( rawBufferUtf8 ) )
-	{
-		encodingMessage();
-		return;
-	}
-
-	WrapTempFileName tempFileName ( doc->getFullFileName() );
-
-	ofstream rawBufferStream ( tempFileName.name().c_str() );
-	if ( !rawBufferStream )
-		return;
-	rawBufferStream << rawBufferUtf8;
-	rawBufferStream.close();
+	std::string utf8Buffer;
+	getRawText ( doc, utf8Buffer );
 
 	auto_ptr<WrapLibxml> wl ( new WrapLibxml ( libxmlNetAccess ) );
-
-	bool success = wl->xpath ( valUtf8, tempFileName.name() );
+	bool success = wl->xpath ( xpathExpression, utf8Buffer,
+			doc->getFullFileName() );
 
 	if ( !success )
 	{
@@ -4145,24 +4091,10 @@ void MyFrame::OnXslt ( wxCommandEvent& event )
 	XmlDoc *doc;
 	if ( ( doc = getActiveDocument() ) == NULL )
 		return;
-	std::string rawBufferUtf8;
-	getRawText ( doc, rawBufferUtf8 );
-	if ( !XmlEncodingHandler::setUtf8 ( rawBufferUtf8 ) )
-	{
-		encodingMessage();
-		return;
-	}
 
-	WrapTempFileName tempFileName ( doc->getFullFileName() );
-
-	ofstream rawBufferStream ( tempFileName.name().c_str() );
-	if ( !rawBufferStream )
-		return;
-	rawBufferStream << rawBufferUtf8;
-	rawBufferStream.close();
+	std::string rawBufferUtf8 = doc->myGetTextRaw();
 
 	wxString path;
-
 	int id = event.GetId();
 	if ( id == ID_XSLT )
 	{
@@ -4254,7 +4186,8 @@ void MyFrame::OnXslt ( wxCommandEvent& event )
 	std::string stylefnameLocal = ( const char * ) path.mb_str ( wxConvLocal );
 
 	auto_ptr<WrapLibxml> wl ( new WrapLibxml ( libxmlNetAccess ) );
-	if ( !wl->xslt ( stylefnameLocal, tempFileName.name() ) )
+	wxString fileName = doc->getFullFileName();
+	if ( !wl->xslt ( path, rawBufferUtf8, fileName ) )
 	{
 		std::string error = wl->getLastError();
 		wxString wideError = wxString ( error.c_str(), wxConvUTF8, error.size() );
@@ -4298,20 +4231,12 @@ void MyFrame::OnPrettyPrint ( wxCommandEvent& event )
 
 	statusProgress ( _ ( "Pretty-printing in progress..." ) );
 
+	wxString fileName = doc->getFullFileName();
+	auto_ptr<WrapLibxml> wl ( new WrapLibxml ( libxmlNetAccess ) );
 	for ( int i = 0; i < 2; i++ ) // perform two iterations
 	{
-		WrapTempFileName tempFileName ( doc->getFullFileName() );
 
-		ofstream rawBufferStream ( tempFileName.name().c_str() );
-		if ( !rawBufferStream )
-			return;
-		rawBufferStream << rawBufferUtf8;
-		rawBufferStream.close();
-
-		auto_ptr<WrapLibxml> wl ( new WrapLibxml ( libxmlNetAccess ) );
-		bool success = wl->parse ( tempFileName.name(), true );
-
-		if ( !success )
+		if ( !wl->parse ( rawBufferUtf8, fileName, true ) )
 		{
 			std::string error = wl->getLastError();
 			wxString wideError = wxString ( error.c_str(), wxConvUTF8, error.size() );