src/Pure/PIDE/isar_document.scala
author wenzelm
Tue Aug 31 23:28:21 2010 +0200 (2010-08-31)
changeset 38887 1261481ef5e5
parent 38581 d503a0912e14
child 39042 470fd769ae53
permissions -rw-r--r--
Command.State: add reported positions to markup tree, according main message position or Markup.binding/entity/report occurrences in body;
Position.Id_Range convenience;
     1 /*  Title:      Pure/PIDE/isar_document.scala
     2     Author:     Makarius
     3 
     4 Protocol message formats for interactive Isar documents.
     5 */
     6 
     7 package isabelle
     8 
     9 
    10 object Isar_Document
    11 {
    12   /* document editing */
    13 
    14   object Assign {
    15     def unapply(msg: XML.Tree)
    16         : Option[(Document.Version_ID, List[(Document.Command_ID, Document.Exec_ID)])] =
    17       msg match {
    18         case XML.Elem(Markup(Markup.ASSIGN, List((Markup.VERSION, Document.ID(id)))), edits) =>
    19           val id_edits = edits.map(Edit.unapply)
    20           if (id_edits.forall(_.isDefined)) Some((id, id_edits.map(_.get)))
    21           else None
    22         case _ => None
    23       }
    24   }
    25 
    26   object Edit {
    27     def unapply(msg: XML.Tree): Option[(Document.Command_ID, Document.Exec_ID)] =
    28       msg match {
    29         case XML.Elem(
    30           Markup(Markup.EDIT,
    31             List((Markup.ID, Document.ID(i)), (Markup.EXEC, Document.ID(j)))), Nil) => Some((i, j))
    32         case _ => None
    33       }
    34   }
    35 
    36 
    37   /* toplevel transactions */
    38 
    39   sealed abstract class Status
    40   case class Forked(forks: Int) extends Status
    41   case object Unprocessed extends Status
    42   case object Finished extends Status
    43   case object Failed extends Status
    44 
    45   def command_status(markup: List[Markup]): Status =
    46   {
    47     val forks = (0 /: markup) {
    48       case (i, Markup(Markup.FORKED, _)) => i + 1
    49       case (i, Markup(Markup.JOINED, _)) => i - 1
    50       case (i, _) => i
    51     }
    52     if (forks != 0) Forked(forks)
    53     else if (markup.exists(_.name == Markup.FAILED)) Failed
    54     else if (markup.exists(_.name == Markup.FINISHED)) Finished
    55     else Unprocessed
    56   }
    57 
    58 
    59   /* reported positions */
    60 
    61   def reported_positions(command_id: Document.Command_ID, message: XML.Elem): Set[Text.Range] =
    62   {
    63     def reported(set: Set[Text.Range], tree: XML.Tree): Set[Text.Range] =
    64       tree match {
    65         case XML.Elem(Markup(name, Position.Id_Range(id, range)), body)
    66         if (name == Markup.BINDING || name == Markup.ENTITY || name == Markup.REPORT) &&
    67           id == command_id => body.foldLeft(set + range)(reported)
    68         case XML.Elem(_, body) => body.foldLeft(set)(reported)
    69         case XML.Text(_) => set
    70       }
    71     reported(Set.empty, message) ++ Position.Range.unapply(message.markup.properties)
    72   }
    73 }
    74 
    75 
    76 trait Isar_Document extends Isabelle_Process
    77 {
    78   import Isar_Document._
    79 
    80 
    81   /* commands */
    82 
    83   def define_command(id: Document.Command_ID, text: String): Unit =
    84     input("Isar_Document.define_command", Document.ID(id), text)
    85 
    86 
    87   /* document versions */
    88 
    89   def edit_version(old_id: Document.Version_ID, new_id: Document.Version_ID,
    90       edits: List[Document.Edit[Document.Command_ID]])
    91   {
    92     val arg =
    93       XML_Data.make_list(
    94         XML_Data.make_pair(XML_Data.make_string)(
    95           XML_Data.make_option(XML_Data.make_list(
    96               XML_Data.make_pair(
    97                 XML_Data.make_option(XML_Data.make_long))(
    98                 XML_Data.make_option(XML_Data.make_long))))))(edits)
    99 
   100     input("Isar_Document.edit_version",
   101       Document.ID(old_id), Document.ID(new_id), YXML.string_of_body(arg))
   102   }
   103 }