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/* NSC -- new Scala compiler
* Copyright 2005-2010 LAMP/EPFL
* @author Paul Phillips
*/
package scala.tools.nsc
package interpreter
import xml.{ XML, Group, Node, NodeSeq }
import XMLCompletion._
import scala.collection.{ mutable, immutable }
class XMLCompletion(root: Node) extends CompletionAware {
private val nodeCache = new mutable.HashMap[String, Node]
private def getNode(s: String): Option[Node] = {
completions // make sure cache is populated
nodeCache get s
}
lazy val completions: List[String] = {
def children = root.child.toList
def uniqueTags = children groupBy (_.label) filter (_._2.size == 1) map (_._1)
val uniqs = uniqueTags.toList
children.foldLeft(List[String]())((res, node) => {
val name = node.label
def count = res filter (_ startsWith (name + "[")) size // ]
val suffix = if (uniqs contains name) "" else "[%d]" format (count + 1)
val s = name + suffix
nodeCache(s) = node
s :: res
}).sorted
}
def completions(verbosity: Int) = completions
override def execute(id: String) = getNode(id)
override def follow(id: String) = getNode(id) map (x => new XMLCompletion(x))
}
object XMLCompletion {
def apply(x: Node) = new XMLCompletion(x)
}
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