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dotnet xml
group:Encoding problem
dotnet xml:
I'm trying to do a transform (Using XmlTransform class in c#) and in the
Transform I'm specifying the the output xsl below: <xsl:output method="xml" encoding="UTF-8" indent="no"/> the resulting xml ends up with the following declaration: <?xml version="1.0" encoding="utf-16"?> changing the encoding to utf-16, is there something I'm doing wrong? Is it possible to make the resulting xml declaration omit the encoding all together? thanks
Thanks for your help and the link. I've changed my code to use a
MemoryStream and it works perfectly. [quoted text, click to view] "Martin Honnen" <mahotrash@yahoo.de> wrote in message news:OX4BBTvsFHA.2064@TK2MSFTNGP09.phx.gbl... > > > Demon News wrote: > >> I'm trying to do a transform (Using XmlTransform class in c#) and in the >> Transform I'm specifying the the output xsl below: >> >> <xsl:output method="xml" encoding="UTF-8" indent="no"/> >> >> the resulting xml ends up with the following declaration: >> >> <?xml version="1.0" encoding="utf-16"?> > > It depends on where you transform to, if you transform to a stream then > the Transform method should use the encoding the <xsl:output> element > specifies. If you transform to a string then UTF-16 is the encoding. > See > <http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconInputsOutputsToXslTransform.asp> > for details. > > > -- > > Martin Honnen --- MVP XML > http://JavaScript.FAQTs.com/
Actually, Now I'm playing with it, using a Memory stream I can't get it to
come out as anything other than UTF-8. Even if I change the encoding to UTF-16 or anything else it still comes out as UTF-8 now. Any idea what's happening? [quoted text, click to view] "Martin Honnen" <mahotrash@yahoo.de> wrote in message news:OX4BBTvsFHA.2064@TK2MSFTNGP09.phx.gbl... > > > Demon News wrote: > >> I'm trying to do a transform (Using XmlTransform class in c#) and in the >> Transform I'm specifying the the output xsl below: >> >> <xsl:output method="xml" encoding="UTF-8" indent="no"/> >> >> the resulting xml ends up with the following declaration: >> >> <?xml version="1.0" encoding="utf-16"?> > > It depends on where you transform to, if you transform to a stream then > the Transform method should use the encoding the <xsl:output> element > specifies. If you transform to a string then UTF-16 is the encoding. > See > <http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconInputsOutputsToXslTransform.asp> > for details. > > > -- > > Martin Honnen --- MVP XML > http://JavaScript.FAQTs.com/
[quoted text, click to view] Demon News wrote: > I'm trying to do a transform (Using XmlTransform class in c#) and in the > Transform I'm specifying the the output xsl below: > > <xsl:output method="xml" encoding="UTF-8" indent="no"/> > > the resulting xml ends up with the following declaration: > > <?xml version="1.0" encoding="utf-16"?> It depends on where you transform to, if you transform to a stream then the Transform method should use the encoding the <xsl:output> element specifies. If you transform to a string then UTF-16 is the encoding. See <http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconInputsOutputsToXslTransform.asp> for details. -- Martin Honnen --- MVP XML
[quoted text, click to view]
Demon News wrote: > Actually, Now I'm playing with it, using a Memory stream I can't get it to > come out as anything other than UTF-8. Even if I change the encoding to > UTF-16 or anything else it still comes out as UTF-8 now. Any idea what's > happening? The generated XML won't change when you change the Encoding after the transform... It may be written to disk as UTF-16, but the string that is written contains the characters "encoding='utf-8'"... --
[quoted text, click to view] Demon News wrote: > Actually, Now I'm playing with it, using a Memory stream I can't get it to > come out as anything other than UTF-8. Even if I change the encoding to > UTF-16 or anything else it still comes out as UTF-8 now. Any idea what's > happening? Not really, you need to show some code and explain in detail where you change the encoding, where you transform to, how you look at the result then. For instance if you transform to a stream and then want to have a string to look at you obviously need to read out the bytes in the stream and convert them to a string. Here is a short C# example: using System; using System.IO; using System.Xml; using System.Xml.Xsl; public class Test2005090601 { public static void Main (string[] args) { string[] encodings = { "UTF-8", "UTF-16", "ISO-8859-1" }; XmlDocument xslStylesheet = new XmlDocument(); xslStylesheet.Load(@"test2005090601Xsl.xml"); XmlNamespaceManager namespaceManager = new XmlNamespaceManager(xslStylesheet.NameTable); namespaceManager.AddNamespace("xsl", "http://www.w3.org/1999/XSL/Transform"); XmlAttribute encodingAttribute = xslStylesheet.SelectSingleNode("/xsl:stylesheet/xsl:output/@encoding", namespaceManager) as XmlAttribute; XslTransform xsltProcessor = new XslTransform(); foreach (string encoding in encodings) { MemoryStream memStream = new MemoryStream(); encodingAttribute.Value = encoding; xsltProcessor.Load(xslStylesheet); xsltProcessor.Transform(xslStylesheet, null, memStream, null); memStream.Position = 0; byte[] resultBytes = new byte[memStream.Length]; memStream.Read(resultBytes, 0, (int)memStream.Length); string resultString = System.Text.Encoding.GetEncoding(encoding).GetString(resultBytes); Console.WriteLine("Transformation result is: {0}.", resultString); Console.WriteLine(); } } } For simplicity I have choosen a simple stylesheet producing a static result and run it against itself: <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"> <xsl:output method="xml" encoding="UTF-8" indent="yes" /> <xsl:template match="/"> <test xml:lang="de">abcäöü€</test> </xsl:template> </xsl:stylesheet> Now when I run that program in a Windows console the output is Transformation result is: ?<?xml version="1.0" encoding="utf-8"?> <test xml:lang="de">abcäöü?</test>. Transformation result is: ?<?xml version="1.0" encoding="utf-16"?> <test xml:lang="de">abcäöü?</test>. Transformation result is: <?xml version="1.0" encoding="iso-8859-1"?> <test xml:lang="de">abcäöü?</test>. So the encoding in the XML declaration written to the stream is as specified by the stylesheet in the <xsl:output>. -- Martin Honnen --- MVP XML
I don't quite understand, you seem to be changing the encoding after the
transform. Surely the point of specifying the encoding attribute in the output element is that it outputs to the specified encoding at point of transform and changes the encoding attribute in the resulting xml declaration. If not why bother with an encoding attribute in the xsl:output element of the transform? The code I've been using is: // sXMLDoc is the xml string to transform // sXSLPath is the path to the xslt transform file public string Transform(string sXMLDoc, string sXSLPath) { //read XML creating the XPathDocument XmlTextReader trXML = new XmlTextReader(new StringReader(sXMLDoc)); XPathDocument xpDoc = new XPathDocument(trXML); // Create the Transform and Resolver objects for later use XslTransform xslt = new XslTransform (); XmlUrlResolver xur = new XmlUrlResolver(); // Load the xsl from the given path // NB Has to be loaded from a path otherwise resolving include statements won't work XmlDocument xslDoc = new XmlDocument(); xslDoc.Load(sXSLPath); // Load the transform into the transform class using the Resolver // to resolve any includes xslt.Load(xslDoc,xur,this.GetType().Assembly.Evidence); //create the output stream (must be a stream to take account of the xsl:output attributes System.IO.Stream str = new MemoryStream(); //Transform it writing to the output stream //using the resolver again for any extra external references xslt.Transform(xpDoc,null,str,xur); // Make sure to Flush and reset the position before reading str.Flush(); str.Position = 0; StreamReader sr = new StreamReader(str); string xmlOut = sr.ReadToEnd(); //get result return xmlOut; } [quoted text, click to view] "Martin Honnen" <mahotrash@yahoo.de> wrote in message news:e1O8IRwsFHA.3512@TK2MSFTNGP15.phx.gbl... > > > Demon News wrote: >> Actually, Now I'm playing with it, using a Memory stream I can't get it >> to >> come out as anything other than UTF-8. Even if I change the encoding to >> UTF-16 or anything else it still comes out as UTF-8 now. Any idea what's >> happening? > > Not really, you need to show some code and explain in detail where you > change the encoding, where you transform to, how you look at the result > then. For instance if you transform to a stream and then want to have a > string to look at you obviously need to read out the bytes in the stream > and convert them to a string. > > Here is a short C# example: > > using System; > using System.IO; > using System.Xml; > using System.Xml.Xsl; > > public class Test2005090601 { > public static void Main (string[] args) { > string[] encodings = { "UTF-8", "UTF-16", "ISO-8859-1" }; > XmlDocument xslStylesheet = new XmlDocument(); > xslStylesheet.Load(@"test2005090601Xsl.xml"); > XmlNamespaceManager namespaceManager = new > XmlNamespaceManager(xslStylesheet.NameTable); > namespaceManager.AddNamespace("xsl", > "http://www.w3.org/1999/XSL/Transform"); > XmlAttribute encodingAttribute = > xslStylesheet.SelectSingleNode("/xsl:stylesheet/xsl:output/@encoding", > namespaceManager) as XmlAttribute; > XslTransform xsltProcessor = new XslTransform(); > foreach (string encoding in encodings) { > MemoryStream memStream = new MemoryStream(); > encodingAttribute.Value = encoding; > xsltProcessor.Load(xslStylesheet); > xsltProcessor.Transform(xslStylesheet, null, memStream, null); > memStream.Position = 0; > byte[] resultBytes = new byte[memStream.Length]; > memStream.Read(resultBytes, 0, (int)memStream.Length); > string resultString = > System.Text.Encoding.GetEncoding(encoding).GetString(resultBytes); > Console.WriteLine("Transformation result is: {0}.", resultString); > Console.WriteLine(); > } > } > } > > For simplicity I have choosen a simple stylesheet producing a static > result and run it against itself: > > <?xml version="1.0" encoding="UTF-8"?> > <xsl:stylesheet > xmlns:xsl="http://www.w3.org/1999/XSL/Transform" > version="1.0"> > > <xsl:output method="xml" encoding="UTF-8" indent="yes" /> > > <xsl:template match="/"> > <test xml:lang="de">abcäöü?</test> > </xsl:template> > > </xsl:stylesheet> > > Now when I run that program in a Windows console the output is > > Transformation result is: ?<?xml version="1.0" encoding="utf-8"?> > <test xml:lang="de">abcäöü?</test>. > > Transformation result is: ?<?xml version="1.0" encoding="utf-16"?> > <test xml:lang="de">abcäöü?</test>. > > Transformation result is: <?xml version="1.0" encoding="iso-8859-1"?> > <test xml:lang="de">abcäöü?</test>. > > So the encoding in the XML declaration written to the stream is as > specified by the stylesheet in the <xsl:output>. > > > > -- > > Martin Honnen --- MVP XML > http://JavaScript.FAQTs.com/
Typical, as soon as I post, I find out the problem... My XSLT had an include
and the included xslt had an output encoding attribute specified of UTF-8 which was over riding what ever I put into the parent xslt. Thanks for the help. [quoted text, click to view] "Martin Honnen" <mahotrash@yahoo.de> wrote in message news:e1O8IRwsFHA.3512@TK2MSFTNGP15.phx.gbl... > > > Demon News wrote: >> Actually, Now I'm playing with it, using a Memory stream I can't get it >> to >> come out as anything other than UTF-8. Even if I change the encoding to >> UTF-16 or anything else it still comes out as UTF-8 now. Any idea what's >> happening? > > Not really, you need to show some code and explain in detail where you > change the encoding, where you transform to, how you look at the result > then. For instance if you transform to a stream and then want to have a > string to look at you obviously need to read out the bytes in the stream > and convert them to a string. > > Here is a short C# example: > > using System; > using System.IO; > using System.Xml; > using System.Xml.Xsl; > > public class Test2005090601 { > public static void Main (string[] args) { > string[] encodings = { "UTF-8", "UTF-16", "ISO-8859-1" }; > XmlDocument xslStylesheet = new XmlDocument(); > xslStylesheet.Load(@"test2005090601Xsl.xml"); > XmlNamespaceManager namespaceManager = new > XmlNamespaceManager(xslStylesheet.NameTable); > namespaceManager.AddNamespace("xsl", > "http://www.w3.org/1999/XSL/Transform"); > XmlAttribute encodingAttribute = > xslStylesheet.SelectSingleNode("/xsl:stylesheet/xsl:output/@encoding", > namespaceManager) as XmlAttribute; > XslTransform xsltProcessor = new XslTransform(); > foreach (string encoding in encodings) { > MemoryStream memStream = new MemoryStream(); > encodingAttribute.Value = encoding; > xsltProcessor.Load(xslStylesheet); > xsltProcessor.Transform(xslStylesheet, null, memStream, null); > memStream.Position = 0; > byte[] resultBytes = new byte[memStream.Length]; > memStream.Read(resultBytes, 0, (int)memStream.Length); > string resultString = > System.Text.Encoding.GetEncoding(encoding).GetString(resultBytes); > Console.WriteLine("Transformation result is: {0}.", resultString); > Console.WriteLine(); > } > } > } > > For simplicity I have choosen a simple stylesheet producing a static > result and run it against itself: > > <?xml version="1.0" encoding="UTF-8"?> > <xsl:stylesheet > xmlns:xsl="http://www.w3.org/1999/XSL/Transform" > version="1.0"> > > <xsl:output method="xml" encoding="UTF-8" indent="yes" /> > > <xsl:template match="/"> > <test xml:lang="de">abcäöü?</test> > </xsl:template> > > </xsl:stylesheet> > > Now when I run that program in a Windows console the output is > > Transformation result is: ?<?xml version="1.0" encoding="utf-8"?> > <test xml:lang="de">abcäöü?</test>. > > Transformation result is: ?<?xml version="1.0" encoding="utf-16"?> > <test xml:lang="de">abcäöü?</test>. > > Transformation result is: <?xml version="1.0" encoding="iso-8859-1"?> > <test xml:lang="de">abcäöü?</test>. > > So the encoding in the XML declaration written to the stream is as > specified by the stylesheet in the <xsl:output>. > > > > -- > > Martin Honnen --- MVP XML > http://JavaScript.FAQTs.com/
[quoted text, click to view] Demon News wrote: > I don't quite understand, you seem to be changing the encoding after the > transform. No, I first change the encoding in the stylesheet and then do the transform and simple do that for several example encodings to demonstrate that the encoding in the stylesheet document passed to XslTransform is what determines the encoding in the XML declaration of the output written to the stream. It is a simple test case which keeps the demonstration short, otherwise I would have to include three different stylesheets for that demonstration. -- Martin Honnen --- MVP XML
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