simplified Command.status again, reverting most of e5eed57913d0 (note that more complex information can be represented with full markup reports);
/* Title: Pure/PIDE/isar_document.scala
Author: Makarius
Protocol message formats for interactive Isar documents.
*/
package isabelle
object Isar_Document
{
/* document editing */
object Assign {
def unapply(msg: XML.Tree)
: Option[(Document.Version_ID, List[(Document.Command_ID, Document.Exec_ID)])] =
msg match {
case XML.Elem(Markup(Markup.ASSIGN, List((Markup.VERSION, Document.ID(id)))), edits) =>
val id_edits = edits.map(Edit.unapply)
if (id_edits.forall(_.isDefined)) Some((id, id_edits.map(_.get)))
else None
case _ => None
}
}
object Edit {
def unapply(msg: XML.Tree): Option[(Document.Command_ID, Document.Exec_ID)] =
msg match {
case XML.Elem(
Markup(Markup.EDIT,
List((Markup.ID, Document.ID(i)), (Markup.EXEC, Document.ID(j)))), Nil) => Some((i, j))
case _ => None
}
}
/* toplevel transactions */
sealed abstract class Status
case class Forked(forks: Int) extends Status
case object Unprocessed extends Status
case object Finished extends Status
case object Failed extends Status
def command_status(markup: List[Markup]): Status =
{
val forks = (0 /: markup) {
case (i, Markup(Markup.FORKED, _)) => i + 1
case (i, Markup(Markup.JOINED, _)) => i - 1
case (i, _) => i
}
if (forks != 0) Forked(forks)
else if (markup.exists(_.name == Markup.FAILED)) Failed
else if (markup.exists(_.name == Markup.FINISHED)) Finished
else Unprocessed
}
}
trait Isar_Document extends Isabelle_Process
{
import Isar_Document._
/* commands */
def define_command(id: Document.Command_ID, text: String): Unit =
input("Isar_Document.define_command", Document.ID(id), text)
/* document versions */
def edit_version(old_id: Document.Version_ID, new_id: Document.Version_ID,
edits: List[Document.Edit[Document.Command_ID]])
{
val arg =
XML_Data.make_list(
XML_Data.make_pair(XML_Data.make_string)(
XML_Data.make_option(XML_Data.make_list(
XML_Data.make_pair(
XML_Data.make_option(XML_Data.make_long))(
XML_Data.make_option(XML_Data.make_long))))))(edits)
input("Isar_Document.edit_version",
Document.ID(old_id), Document.ID(new_id), YXML.string_of_body(arg))
}
}