[DUG] Strange Error in Android

[Jolyon Smith]

Could you post the first line of the XML so we can see what it comprises 
of ?  i.e. what XML declaration does the string contain which the parser 
is rejecting ?

As a result of the DOM Vendor implementation model in Delphi, behaviour 
on Windows is no indication of reliability on Android, iOS or OS X (as 
you are finding).

For Android it seems that the key to your problem is in 
XML.Internal.AdomCore_4_3.pas, specifically the EvaluateXmlOrTextDecl() 
method of TXmlInputSource but without knowing what declaration is being 
presented to this method it's impossible to say whether the problem lies 
here, in the process of assigning the string from the HTTP response to 
the XML document or with the content of the XML string itself.

There is potential for many slips twixt this particular cup and lip.

> Robert Martin <mailto:rob at chreos.co.nz>
> Tue, 3 Dec 2013 09:03
> Hi Jeremy
>
> Never done any Delphi Android work but is it possible it is a 
> character set issue?  I am only using XE2 nut if I look at 
> XMLDoc.LoadFromXML() (I don't have a LoadXMLData) it takes an 
> AnsiString on at UTF16 delphi string.
>
> Thanks
> Rob
>
>
>  On 2/12/2013 11:40 p.m., Jeremy Coulter wrote:
>
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> Jeremy Coulter <mailto:jscoulter at gmail.com>
> Mon, 2 Dec 2013 23:40
>
> Hi All.
>
> I am Sending an HTTP request to a server that is returning some XML in 
> an Android app.
>
> However, I get an unexpected result. I am using Indy and the 
> idHTTP.get() function which returns either a string or populates a stream.
>
> I started out first by loading the results into a string variable, 
> i.e.  buffer:=isHTTP.get()  which returns the data fine, BUT if I call 
> LoadXMLData(buffer)  - (LoadXmlData() is in Xml.XMLDoc.pas) which is a 
> function I have used a number of time in Delphi in normal Windows apps 
> and never had a problem -- that wasn't something I did J
>
> However, if in the android app, I load the buffer variable into a 
> string list then save that to file the  call LoadXMLDocument() that 
> takes a file name, it works fine !!
>
> Oh, the error I get is   "ET_INVALID_XML_DECL line:-1" which indicates 
> the XML is invalid but if I do a showmessage(buffer) its perfectly fine.
>
> I have tried loading the result into a stream and the reading it out 
> into a string and I get the same error. I have tried removing the 
> #13#10's and STILL I get the error. If I write the XML to file first, 
> no problem.
>
> I have tried using String and DOMStrings, but still the same error
>
> Anyone got any ideas? I shouldn't have to write the xml to file then 
> load it, that's a bit of a pain.
>
> Thanks, Jeremy
>
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