Are line breaks in XML attribute values allowed?

Question

I realise that it\'s not elegant or desired, but is it allowed (in well-formed XML) for an attribute value in an XML element to span multiple lines?

e.g.

<         


        

Answer 1

It is allowed, however according to W3C recommendation your XML parser should normalize the all whitespace characters to space (0x20) - so the output of your examples will differ (you should have new line on the output for " ", but only space in the first case).

http://www.w3.org/TR/1998/REC-xml-19980210#AVNormalize