Regular expression for valid xml

[Manishkumar Modi]

i am looking regular expression to check string is valid XML or not

[Zandis Murāns]

You should never do this. Instead, try to parse you'r xml to tell if it's valid or not.

[Manishkumar Modi]

Thank you. and can we make regular expression to check string is valid XHTML or not

[Manishkumar Modi]

I want to check this is valid or not
String myString = "<manish><abc pqr="1234"/></manish>";

[Zandis Murāns]

^<([^<>]+?)><[^"]+?("?)[^"]*\2/></\1>$

[Tim Moores]

What you posted in neither well-formed nor valid XML.

Note that single regexps are not powerful enough to even check wellformedness of XML, much less validity (which implies the presence of some sort of schema).