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How to do regex pattern matching in Scala

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I have a list of String in Scala, each String has a key/value format as follows:

<row Id="25780063" PostTypeId="2" ParentId="25774527" CreationDate="2014-09-11T05:56:29.900" /> 

Each String may have some extra key/value. I'd like to extract the value for a few keys for each string. Here is the pattern I've defined but it is not working properly

val idPattern = "Id=(.*).r val typePattern = "PostTypeId=(.*)".r 

How can I correctly extract the value for 'Id' and 'PostTypeId'?

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