Using Regex to wrap xml element value with cdata - regex

Question

I have to edit a stored procedure that builds xml strings so that all the element values are wrapped in cdata. Some of the values have already been wrapped in cdata so I need to ignore those.
I figured this is a good attempt to learn some regex
From: <element>~DATA_04</element>
to: <element><![CDATA[~DATA_04]]></element>
What are my options on how to do this? I can do simple regex, this is way more advanced.
NOTE: The <element> is generic for illustration purposes, in reality, it could be anything and is unknown.
Sample text:
declare #sql nvarchar(max) =
' <data>
<header></header>
<docInfo>Blah</docInfo>
<someelement>~DATA_04</someelement>
<anotherelement><![CDATA[~DATA_05]]></anotherelement>
</data>
'
Using the sample xml, the regex would need to find someelement and add cdata to it like <someelement><![CDATA[~DATA_04]]></someelement> and leave the other elements alone.
Bear in mind, I did not write this horrible sql code, i just have to edit it.

Answer 1

This is c#:
string text = Regex.Replace( inputString, #"<element>~(.+)</element>", "<element>![CDATA[~$1]]</element>" , RegexOptions.None );
The find is:
<element>~(.+)</element>
The replace is:
<element>![CDATA[~$1]]</element>
I'm assuming there is a ~ at the start of the inside of the element tag.
You will also want to watch out for whitespace if that is an issue...
You may want to add some
\s*
Any whitespace characters, zero or more matches

Answer 2

Try with (<[^>]+>)(\~data_([^<]+))(<[^>]+>)
and replace for \1<![CDATA[\2]]>\4
this will give you: <element><![CDATA[~DATA_04]]></element>,
where element could be anything else. Check the DEMO
Good luck