Variable in CDATA in Scala

Question

Is there a way to put a variable to be expanded in a cdata section in scala

val reason = <reason><![CDATA[ {failedReason} ]]></reason>

score 27 · Answer 1 · answered Mar 14 '13 at 13:59

27

It could be even simplier:

val reason = <reason>{scala.xml.PCData(failedReason)}</reason>

answered Mar 14 '13 at 13:59

Bob G

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You might want to escape illegal `]]>`: `content.replaceAll("]]>", "]]]]><![CDATA[>")` – Bruno Bieth Feb 24 '14 at 16:48
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I'm not sure the comment by @BrunoBieth applies to this (great!) answer. It already correctly deals with "gotcha" strings: `{scala.xml.PCData("]]>")}` becomes `<![CDATA[]]]]><![CDATA[>]]>` – Bart Schuller Oct 02 '19 at 13:08

jcern · Accepted Answer · 2012-12-20T17:17:56.527

I am not sure if you can get that through native XML support, but you could do something like:

scala.xml.XML.loadString("<reason><![CDATA[%s]]></reason>".format(failedReason))

You lose some of the compile-time validations that way, but it should give you am xml element with the data which you are looking for. Since it returns a scala.xml.Elem, you can also embed the result in a larger XML structure.

EDIT

After thinking about this a bit more, the following may be a beter (and less fragile) way to do this. It restricts the free-text portion to only the CDATA, minimizing the potential for unbalanced expressions.

<reason>{ scala.xml.Unparsed("<![CDATA[%s]]>".format(failedReason)) }</reason>

Variable in CDATA in Scala

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