How can I match on an attribute that contains a certain string?

Question

I am having a problem selecting nodes by attribute when the attributes contains more than one word. For example:

Answer 1

To add onto bobince's answer... If whatever tool/library you using uses Xpath 2.0, you can also do this:

//*[count(index-of(tokenize(@class, '\s+' ), $classname)) = 1]

count() is apparently needed because index-of() returns a sequence of each index it has a match at in the string.