--- a/src/Pure/Thy/thy_syntax.scala Sat Jul 09 21:53:27 2011 +0200
+++ b/src/Pure/Thy/thy_syntax.scala Sun Jul 10 00:21:19 2011 +0200
@@ -99,8 +99,12 @@
/** text edits **/
- def text_edits(syntax: Outer_Syntax, previous: Document.Version,
- edits: List[Document.Edit_Text]): (List[Document.Edit_Command], Document.Version) =
+ def text_edits(
+ syntax: Outer_Syntax,
+ previous: Document.Version,
+ edits: List[Document.Edit_Text],
+ headers: List[(String, Document.Node.Header)])
+ : (List[Document.Edit_Command], List[(String, Thy_Header.Header)], Document.Version) =
{
/* phase 1: edit individual command source */
@@ -169,10 +173,25 @@
}
+ /* node header */
+
+ def node_header(name: String, node: Document.Node)
+ : (List[(String, Thy_Header.Header)], Document.Node.Header) =
+ (node.header.thy_header, headers.find(p => p._1 == name).map(_._2)) match {
+ case (Exn.Res(thy_header0), Some(header @ Document.Node.Header(_, Exn.Res(thy_header))))
+ if thy_header0 != thy_header =>
+ (List((name, thy_header)), header)
+ case (Exn.Exn(_), Some(header @ Document.Node.Header(_, Exn.Res(thy_header)))) =>
+ (List((name, thy_header)), header)
+ case _ => (Nil, node.header)
+ }
+
+
/* resulting document edits */
{
val doc_edits = new mutable.ListBuffer[Document.Edit_Command]
+ val header_edits = new mutable.ListBuffer[(String, Thy_Header.Header)]
var nodes = previous.nodes
edits foreach {
@@ -194,9 +213,13 @@
inserted_commands.map(cmd => (commands2.prev(cmd), Some(cmd)))
doc_edits += (name -> Some(cmd_edits))
- nodes += (name -> Document.Node(node.header, node.blobs, commands2))
+
+ val (new_headers, new_header) = node_header(name, node)
+ header_edits ++= new_headers
+
+ nodes += (name -> Document.Node(new_header, node.blobs, commands2))
}
- (doc_edits.toList, new Document.Version(Document.new_id(), nodes))
+ (doc_edits.toList, header_edits.toList, Document.Version(Document.new_id(), nodes))
}
}
}