Multiple different serialization formats in a single xquery

Sascha Grabsch via Exist-open <[email protected]> Thu, 17 Apr 2025 15:25:18 +0200
Newsgroups gmane.text.xml.exist
Message-ID <[email protected]> 
Dear list members,

I'm trying to output different formats (XML and HTML5) from a single 
xquery script, but can't get it to work. Here is my test case:

xquery version "3.1";
let $p_format := request:get-parameter("format", ())

let $test :=
<html>
     <head>
         <title>Test Title</title>
     </head>
     <body>
         <h1>Hello, World!</h1>
     </body>
</html>

return
     if ($p_format = "tei-xml") then (serialize($test, map { "method": 
"xml" })) else (serialize($test, map { "method": "html" }))


However in both cases this does not work as expected:

method:xml - The serialization option method:xml does not return valid 
XML, since the returned document is wrongly escaped 
(&lt;html&gt;&lt;head&gt;&lt;title&gt;Test 
Title&lt;/title&gt;&lt;/head&gt;&lt;body&gt;&lt;h1&gt;Hello, 
World!&lt;/h1&gt;&lt;/body&gt;&lt;/html&gt;). The content-type in the 
response header however is correct ("application/xml").

method:html - While the serialization option method:html correctly adds 
a doctype for HTML5 (i. e. <!DOCTYPE html>), the actual response in a 
browser is wrongly escaped (as in &lt;!DOCTYPE html&gt;
&lt;html&gt;&lt;head&gt;&lt;title&gt;Test 
Title&lt;/title&gt;&lt;/head&gt;&lt;body&gt;&lt;h1&gt;Hello, 
World!&lt;/h1&gt;&lt;/body&gt;&lt;/html&gt;). Additionally the 
content-type in the response header is "application/xml" instead of 
"text/html".


According to 
<https://exist-db.org/exist/apps/doc/xquery.xml#fn-serialize> I would 
have expected to be able to return different serializations via 
fn:serialize, but it seems it is only possible to have one serialization 
per XQuery script via "declare option exist:serialize ..."?

I would be glad about any information or hints what I might be missing.

Thanks a lot!

Sascha
-- 
Berlin-Brandenburgische Akademie der Wissenschaften
TELOTA ⁠(The Electronic Life Of The Academy)
Jägerstr. 22/23 | 10117 Berlin
[email protected] | +49 30 20370 536



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