Question

I have a String which is XML data. After removing some nodes and adding few. The xml data is having lot of white spaces in it (created during the node removal.)

<A>
<B>
</B>

<!-- some node i deleted and lot of white spaces -->



<c>
</c>


<!-- some more node i deleted and lot of white spaces -->




<E>
</E>

Desired output after String manipulation

<A>
<B>
</B>
<c>
</c>
<E>
</E>
</A>

I can use replaceAll(“\s”,””) but this removes even the new line character and make the xml out of structure for displaying it in UI.

Is there a way to trim it without trimming the new line character?

Edit: This XML data is part of OMElement

Answer 1

Can you clarify what you mean? If you mean whitespace other than new-lines, try as follows.

str = str.replaceAll("[ \t\x0B\f\r]", "");

… or, do you instead mean you want to remove extraneous new lines?

str = str.replaceAll("\n{2,}", "\n");

… or do you only want to remove only literal ' ' spaces?

str = str.replace(" ", "");