1.1 --- a/src/Pure/Thy/command.scala	Fri May 07 09:59:59 2010 +0200
     1.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.3 @@ -1,100 +0,0 @@
     1.4 -/*
     1.5 - * Prover commands with semantic state
     1.6 - *
     1.7 - * @author Johannes Hölzl, TU Munich
     1.8 - * @author Fabian Immler, TU Munich
     1.9 - */
    1.10 -
    1.11 -package isabelle
    1.12 -
    1.13 -
    1.14 -import scala.actors.Actor, Actor._
    1.15 -import scala.collection.mutable
    1.16 -
    1.17 -
    1.18 -object Command
    1.19 -{
    1.20 -  object Status extends Enumeration
    1.21 -  {
    1.22 -    val UNPROCESSED = Value("UNPROCESSED")
    1.23 -    val FINISHED = Value("FINISHED")
    1.24 -    val FAILED = Value("FAILED")
    1.25 -  }
    1.26 -
    1.27 -  case class HighlightInfo(highlight: String) { override def toString = highlight }
    1.28 -  case class TypeInfo(ty: String)
    1.29 -  case class RefInfo(file: Option[String], line: Option[Int],
    1.30 -    command_id: Option[String], offset: Option[Int])
    1.31 -}
    1.32 -
    1.33 -
    1.34 -class Command(
    1.35 -    val id: Isar_Document.Command_ID,
    1.36 -    val span: Thy_Syntax.Span)
    1.37 -  extends Session.Entity
    1.38 -{
    1.39 -  /* classification */
    1.40 -
    1.41 -  def is_command: Boolean = !span.isEmpty && span.head.is_command
    1.42 -  def is_ignored: Boolean = span.forall(_.is_ignored)
    1.43 -  def is_malformed: Boolean = !is_command && !is_ignored
    1.44 -
    1.45 -  def name: String = if (is_command) span.head.content else ""
    1.46 -  override def toString = if (is_command) name else if (is_ignored) "<ignored>" else "<malformed>"
    1.47 -
    1.48 -
    1.49 -  /* source text */
    1.50 -
    1.51 -  val source: String = span.map(_.source).mkString
    1.52 -  def source(i: Int, j: Int): String = source.substring(i, j)
    1.53 -  def length: Int = source.length
    1.54 -
    1.55 -  lazy val symbol_index = new Symbol.Index(source)
    1.56 -
    1.57 -
    1.58 -  /* accumulated messages */
    1.59 -
    1.60 -  @volatile protected var state = new State(this)
    1.61 -  def current_state: State = state
    1.62 -
    1.63 -  private case class Consume(session: Session, message: XML.Tree)
    1.64 -  private case object Assign
    1.65 -
    1.66 -  private val accumulator = actor {
    1.67 -    var assigned = false
    1.68 -    loop {
    1.69 -      react {
    1.70 -        case Consume(session: Session, message: XML.Tree) if !assigned =>
    1.71 -          state = state.+(session, message)
    1.72 -
    1.73 -        case Assign =>
    1.74 -          assigned = true  // single assignment
    1.75 -          reply(())
    1.76 -
    1.77 -        case bad => System.err.println("command accumulator: ignoring bad message " + bad)
    1.78 -      }
    1.79 -    }
    1.80 -  }
    1.81 -
    1.82 -  def consume(session: Session, message: XML.Tree) { accumulator ! Consume(session, message) }
    1.83 -
    1.84 -  def assign_state(state_id: Isar_Document.State_ID): Command =
    1.85 -  {
    1.86 -    val cmd = new Command(state_id, span)
    1.87 -    accumulator !? Assign
    1.88 -    cmd.state = current_state
    1.89 -    cmd
    1.90 -  }
    1.91 -
    1.92 -
    1.93 -  /* markup */
    1.94 -
    1.95 -  lazy val empty_markup = new Markup_Text(Nil, source)
    1.96 -
    1.97 -  def markup_node(begin: Int, end: Int, info: Any): Markup_Tree =
    1.98 -  {
    1.99 -    val start = symbol_index.decode(begin)
   1.100 -    val stop = symbol_index.decode(end)
   1.101 -    new Markup_Tree(new Markup_Node(start, stop, info), Nil)
   1.102 -  }
   1.103 -}