HasKeyValue for matching on attribute presence ...

HasKeyValue for matching on attribute presence and getting a value

1 files changed, 13 insertions, 0 deletions

diff --git a/src/library/scala/xml/HasKeyValue.scala b/src/library/scala/xml/HasKeyValue.scala
new file mode 100644
index 0000000000..f7dae950f1
--- /dev/null
+++ b/src/library/scala/xml/HasKeyValue.scala
@@ -0,0 +1,13 @@
+package scala.xml
+
+/** use this class to match on (unprefixed) attribute values
+ *  <p>
+ val hasName = new HasKeyValue("name")
+ node match {
+   case Node("foo", hasName(x), _*) => x // foo had attribute with key "name" and with value x
+ }
+ */
+class HasKeyValue(key: String) {
+        def unapplySeq(x:MetaData): Option[Seq[Node]] = x.get(key)
+}
+