842A continuation of the passing XML as string discussion..
- Sep 20, 2001Greetings,
I have read the discussion on passing XML in strings with great interest.
We are doing the same with our server, sending a blob of XML over the wire.
This would all work perfectly if everyone has XML::Parser. When falling
back on XML::Parser::Lite the %lt; are obviously not encoded back properly
yet (see docs).
I have been looking at the other methods that were suggested:
1. return SOAP::Data->type(xml => $xmlblob)
2. the use of <![CDATA[..]]>
When trying to do 1. (my preferred method), I get warnings from the parser:
xml processing instruction not at start of external entity at line 1,
column 426, byte 426 at
/sw/common/share/perl/site-perl/5.00503/alpha-osf1/XML/Parser.pm line 185
Bascially, my $xmlblob is a fully valid and well-formed piece of xml,
including the <?xml ?> start. Removing the first line warns about another
processing instruction <?format DECIMAL=".">, removing that one warns about
the <!DOCTYPE..> stuff.
The Doctype stuff is required for the validation at the other side.
The instructions on 2 were not completely clear to me, but I tried several
forms at the server side:
return "<![CDATA[" . $xmlblob . "]]>"
return SOAP::Data->type(xml => ("<![CDATA[" . $xmlblob . "]]>")) (or with
string as type)
etc.. These didn't seem to work as well (still < and <![CDATA tags still
I am hoping to do everything server-side so I don't have to do anything
manual at the client side - does anyone have a cookbook example how to use
an xml blob (including PI's) without the need for decoding (in the event of
absence of the XML::Parser module) ?
With kind regards,
drs. Jean-Jack M. Riethoven
EMBL Outstation - Hinxton pow@... ICQ#: 3433929
European Bioinformatics Institute Phone: (+44) 1223 494635
Wellcome Trust Genome Campus Fax : (+44) 1223 494468
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