/* Title: Pure/PIDE/command.scala
Author: Fabian Immler, TU Munich
Author: Makarius
Prover commands with semantic state.
*/
package isabelle
object Command
{
/** accumulated results from prover **/
case class State(
val command: Command,
val status: List[Markup],
val reverse_results: List[XML.Tree],
val markup: Markup_Tree)
{
/* content */
lazy val results = reverse_results.reverse
def add_result(result: XML.Tree): State = copy(reverse_results = result :: reverse_results)
def add_markup(info: Text.Info[Any]): State = copy(markup = markup + info)
def root_info: Text.Info[Any] =
new Text.Info(command.range,
XML.Elem(Markup(Markup.STATUS, Nil), status.reverse.map(XML.Elem(_, Nil))))
def root_markup: Markup_Tree = markup + root_info
/* message dispatch */
def accumulate(message: XML.Tree): Command.State =
message match {
case XML.Elem(Markup(Markup.STATUS, _), body) => // FIXME explicit body check!?
copy(status = (for (XML.Elem(markup, _) <- body) yield markup) ::: status)
case XML.Elem(Markup(Markup.REPORT, _), msgs) =>
(this /: msgs)((state, msg) =>
msg match {
case XML.Elem(Markup(name, atts), args)
if Position.get_id(atts) == Some(command.id) && Position.get_range(atts).isDefined =>
val range = command.decode(Position.get_range(atts).get)
val props = atts.filterNot(p => Markup.POSITION_PROPERTIES(p._1))
val info = Text.Info[Any](range, XML.Elem(Markup(name, props), args))
add_markup(info)
case _ => System.err.println("Ignored report message: " + msg); state
})
case _ => add_result(message)
}
}
/* unparsed dummy commands */
def unparsed(source: String) =
new Command(Document.NO_ID, List(Token(Token.Kind.UNPARSED, source)))
}
class Command(
val id: Document.Command_ID,
val span: List[Token])
{
/* 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 is_unparsed = id == Document.NO_ID
def name: String = if (is_command) span.head.content else ""
override def toString =
id + "/" + (if (is_command) name else if (is_ignored) "IGNORED" else "MALFORMED")
/* source text */
val source: String = span.map(_.source).mkString
def source(range: Text.Range): String = source.substring(range.start, range.stop)
def length: Int = source.length
val range: Text.Range = Text.Range(0, length)
lazy val symbol_index = new Symbol.Index(source)
def decode(i: Text.Offset): Text.Offset = symbol_index.decode(i)
def decode(r: Text.Range): Text.Range = symbol_index.decode(r)
/* accumulated results */
val empty_state: Command.State = Command.State(this, Nil, Nil, Markup_Tree.empty)
}