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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala
package xml
/** prefixed attributes always have a non-null namespace.
*
* @param pre
* @param key
* @param value the attribute value
* @param next1
*/
class PrefixedAttribute(
val pre: String,
val key: String,
val value: Seq[Node],
val next1: MetaData)
extends Attribute
{
val next = if (value ne null) next1 else next1.remove(key)
/** same as this(pre, key, Text(value), next), or no attribute if value is null */
def this(pre: String, key: String, value: String, next: MetaData) =
this(pre, key, if (value ne null) Text(value) else null: NodeSeq, next)
/** same as this(pre, key, value.get, next), or no attribute if value is None */
def this(pre: String, key: String, value: Option[Seq[Node]], next: MetaData) =
this(pre, key, value.orNull, next)
/** Returns a copy of this unprefixed attribute with the given
* next field.
*/
def copy(next: MetaData) =
new PrefixedAttribute(pre, key, value, next)
def getNamespace(owner: Node) =
owner.getNamespace(pre)
/** forwards the call to next (because caller looks for unprefixed attribute */
def apply(key: String): Seq[Node] = next(key)
/** gets attribute value of qualified (prefixed) attribute with given key
*/
def apply(namespace: String, scope: NamespaceBinding, key: String): Seq[Node] = {
if (key == this.key && scope.getURI(pre) == namespace)
value
else
next(namespace, scope, key)
}
}
object PrefixedAttribute {
def unapply(x: PrefixedAttribute) = Some((x.pre, x.key, x.value, x.next))
}
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