src/Pure/PIDE/isar_document.scala
author wenzelm
Thu Sep 23 14:39:29 2010 +0200 (2010-09-23)
changeset 39625 fb0c851e4f9d
parent 39622 53365ba766ac
child 39627 108901b49210
permissions -rw-r--r--
tuned prover message categorization;
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/*  Title:      Pure/PIDE/isar_document.scala
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    Author:     Makarius
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Protocol message formats for interactive Isar documents.
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*/
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package isabelle
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object Isar_Document
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{
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  /* document editing */
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  object Assign {
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    def unapply(msg: XML.Tree)
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        : Option[(Document.Version_ID, List[(Document.Command_ID, Document.Exec_ID)])] =
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      msg match {
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        case XML.Elem(Markup(Markup.ASSIGN, List((Markup.VERSION, Document.ID(id)))), edits) =>
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          val id_edits = edits.map(Edit.unapply)
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          if (id_edits.forall(_.isDefined)) Some((id, id_edits.map(_.get)))
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          else None
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        case _ => None
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      }
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  }
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  object Edit {
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    def unapply(msg: XML.Tree): Option[(Document.Command_ID, Document.Exec_ID)] =
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      msg match {
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        case XML.Elem(
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          Markup(Markup.EDIT,
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            List((Markup.ID, Document.ID(i)), (Markup.EXEC, Document.ID(j)))), Nil) => Some((i, j))
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        case _ => None
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      }
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  }
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  /* toplevel transactions */
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  sealed abstract class Status
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  case class Forked(forks: Int) extends Status
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  case object Unprocessed extends Status
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  case object Finished extends Status
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  case object Failed extends Status
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  def command_status(markup: List[Markup]): Status =
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  {
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    val forks = (0 /: markup) {
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      case (i, Markup(Markup.FORKED, _)) => i + 1
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      case (i, Markup(Markup.JOINED, _)) => i - 1
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      case (i, _) => i
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    }
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    if (forks != 0) Forked(forks)
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    else if (markup.exists(_.name == Markup.FAILED)) Failed
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    else if (markup.exists(_.name == Markup.FINISHED)) Finished
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    else Unprocessed
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  }
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  /* result messages */
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  def clean_message(body: XML.Body): XML.Body =
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    body filter { case XML.Elem(Markup(Markup.NO_REPORT, _), _) => false case _ => true } map
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      { case XML.Elem(markup, ts) => XML.Elem(markup, clean_message(ts)) case t => t }
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  def message_reports(msg: XML.Tree): List[XML.Elem] =
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    msg match {
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      case elem @ XML.Elem(Markup(Markup.REPORT, _), _) => List(elem)
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      case XML.Elem(_, body) => body.flatMap(message_reports)
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      case XML.Text(_) => Nil
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    }
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  /* specific messages */
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  def is_ready(msg: XML.Tree): Boolean =
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    msg match {
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      case XML.Elem(Markup(Markup.STATUS, _),
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        List(XML.Elem(Markup(Markup.READY, _), _))) => true
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      case _ => false
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    }
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 def is_tracing(msg: XML.Tree): Boolean =
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    msg match {
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      case XML.Elem(Markup(Markup.TRACING, _), _) => true
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      case _ => false
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    }
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  def is_warning(msg: XML.Tree): Boolean =
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    msg match {
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      case XML.Elem(Markup(Markup.WARNING, _), _) => true
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      case _ => false
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    }
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  def is_error(msg: XML.Tree): Boolean =
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    msg match {
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      case XML.Elem(Markup(Markup.ERROR, _), _) => true
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      case _ => false
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    }
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  def is_state(msg: XML.Tree): Boolean =
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    msg match {
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      case XML.Elem(Markup(Markup.WRITELN, _), List(XML.Elem(Markup(Markup.STATE, _), _))) => true
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      case _ => false
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    }
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  /* reported positions */
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  private val include_pos = Set(Markup.BINDING, Markup.ENTITY, Markup.REPORT, Markup.POSITION)
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  def message_positions(command: Command, message: XML.Elem): Set[Text.Range] =
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  {
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    def positions(set: Set[Text.Range], tree: XML.Tree): Set[Text.Range] =
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      tree match {
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        case XML.Elem(Markup(name, Position.Id_Range(id, raw_range)), body)
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        if include_pos(name) && id == command.id =>
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          val range = command.decode(raw_range).restrict(command.range)
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          body.foldLeft(if (range.is_singularity) set else set + range)(positions)
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        case XML.Elem(Markup(name, _), body) => body.foldLeft(set)(positions)
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        case _ => set
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      }
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    val set = positions(Set.empty, message)
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    if (set.isEmpty && !is_state(message))
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      set ++ Position.Range.unapply(message.markup.properties).map(command.decode(_))
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    else set
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  }
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}
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trait Isar_Document extends Isabelle_Process
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{
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  import Isar_Document._
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  /* commands */
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  def define_command(id: Document.Command_ID, text: String): Unit =
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    input("Isar_Document.define_command", Document.ID(id), text)
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  /* document versions */
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  def edit_version(old_id: Document.Version_ID, new_id: Document.Version_ID,
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      edits: List[Document.Edit[Document.Command_ID]])
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  {
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    val arg =
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      XML_Data.make_list(
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        XML_Data.make_pair(XML_Data.make_string)(
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          XML_Data.make_option(XML_Data.make_list(
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              XML_Data.make_pair(
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                XML_Data.make_option(XML_Data.make_long))(
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                XML_Data.make_option(XML_Data.make_long))))))(edits)
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    input("Isar_Document.edit_version",
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      Document.ID(old_id), Document.ID(new_id), YXML.string_of_body(arg))
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  }
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}