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>

Bob G · Accepted Answer · 2013-03-14 13:59:17Z

27

It could be even simplier:

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

answered Mar 14, 2013 at 13:59

Bob G

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2 Comments

Bruno Bieth Over a year ago

You might want to escape illegal ]]>: content.replaceAll("]]>", "]]]]><![CDATA[>")

Bart Schuller Over a year ago

I'm not sure the comment by @BrunoBieth applies to this (great!) answer. It already correctly deals with "gotcha" strings: <reason>{scala.xml.PCData("]]>")}</reason> becomes <reason><![CDATA[]]]]><![CDATA[>]]></reason>

jcern · Accepted Answer · 2012-12-20 17:17:56Z

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>

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