--- a/src/Pure/Thy/command.scala Wed May 05 15:30:01 2010 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,100 +0,0 @@
-/*
- * Prover commands with semantic state
- *
- * @author Johannes Hölzl, TU Munich
- * @author Fabian Immler, TU Munich
- */
-
-package isabelle
-
-
-import scala.actors.Actor, Actor._
-import scala.collection.mutable
-
-
-object Command
-{
- object Status extends Enumeration
- {
- val UNPROCESSED = Value("UNPROCESSED")
- val FINISHED = Value("FINISHED")
- val FAILED = Value("FAILED")
- }
-
- case class HighlightInfo(highlight: String) { override def toString = highlight }
- case class TypeInfo(ty: String)
- case class RefInfo(file: Option[String], line: Option[Int],
- command_id: Option[String], offset: Option[Int])
-}
-
-
-class Command(
- val id: Isar_Document.Command_ID,
- val span: Thy_Syntax.Span)
- extends Session.Entity
-{
- /* classification */
-
- def is_command: Boolean = !span.isEmpty && span.head.is_command
- def is_ignored: Boolean = span.forall(_.is_ignored)
- def is_malformed: Boolean = !is_command && !is_ignored
-
- def name: String = if (is_command) span.head.content else ""
- override def toString = if (is_command) name else if (is_ignored) "<ignored>" else "<malformed>"
-
-
- /* source text */
-
- val source: String = span.map(_.source).mkString
- def source(i: Int, j: Int): String = source.substring(i, j)
- def length: Int = source.length
-
- lazy val symbol_index = new Symbol.Index(source)
-
-
- /* accumulated messages */
-
- @volatile protected var state = new State(this)
- def current_state: State = state
-
- private case class Consume(session: Session, message: XML.Tree)
- private case object Assign
-
- private val accumulator = actor {
- var assigned = false
- loop {
- react {
- case Consume(session: Session, message: XML.Tree) if !assigned =>
- state = state.+(session, message)
-
- case Assign =>
- assigned = true // single assignment
- reply(())
-
- case bad => System.err.println("command accumulator: ignoring bad message " + bad)
- }
- }
- }
-
- def consume(session: Session, message: XML.Tree) { accumulator ! Consume(session, message) }
-
- def assign_state(state_id: Isar_Document.State_ID): Command =
- {
- val cmd = new Command(state_id, span)
- accumulator !? Assign
- cmd.state = current_state
- cmd
- }
-
-
- /* markup */
-
- lazy val empty_markup = new Markup_Text(Nil, source)
-
- def markup_node(begin: Int, end: Int, info: Any): Markup_Tree =
- {
- val start = symbol_index.decode(begin)
- val stop = symbol_index.decode(end)
- new Markup_Tree(new Markup_Node(start, stop, info), Nil)
- }
-}