DB<1> $x = q|<blah1 phase="2" type="MyType" more_keys="Values" <Unwanted/>  <SomeTagIwant><k1="v1"></SomeTagIwant>|;

  DB<2> $y = q|<blah1 phase="2" type="MyType" more_keys="Values" <Unwanted/>  <SomeTagIDontWant><k1="v1"></SomeTagIDontWant>|;

  DB<3> print "$_ " for $x  =~ /type="([^"]+)".+?(\w+?TagIwant)  | type="([^"]+)"/x;
MyType SomeTagIwant
  DB<4> print "$_ " for  $y =~ /type="([^"]+)".+?(\\w+?TagIwant)  | type="([^"]+)"/x;;
  MyType
  DB<5>