author | wenzelm |
Sun, 15 Mar 2015 19:21:15 +0100 | |
changeset 59702 | 58dfaa369c11 |
parent 59699 | a6efad6acafd |
child 59703 | 081c57f6b22c |
permissions | -rw-r--r-- |
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/* Title: Pure/Thy/thy_syntax.scala |
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Author: Makarius |
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Superficial theory syntax: tokens and spans. |
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*/ |
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package isabelle |
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import scala.collection.mutable |
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import scala.annotation.tailrec |
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object Thy_Syntax |
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{ |
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/** perspective **/ |
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def command_perspective( |
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node: Document.Node, |
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perspective: Text.Perspective, |
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overlays: Document.Node.Overlays): (Command.Perspective, Command.Perspective) = |
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{ |
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if (perspective.is_empty && overlays.is_empty) |
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(Command.Perspective.empty, Command.Perspective.empty) |
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else { |
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val has_overlay = overlays.commands |
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val visible = new mutable.ListBuffer[Command] |
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val visible_overlay = new mutable.ListBuffer[Command] |
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@tailrec |
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def check_ranges(ranges: List[Text.Range], commands: Stream[(Command, Text.Offset)]) |
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{ |
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(ranges, commands) match { |
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case (range :: more_ranges, (command, offset) #:: more_commands) => |
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val command_range = command.range + offset |
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range compare command_range match { |
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case 0 => |
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visible += command |
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visible_overlay += command |
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check_ranges(ranges, more_commands) |
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case c => |
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if (has_overlay(command)) visible_overlay += command |
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|
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if (c < 0) check_ranges(more_ranges, commands) |
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else check_ranges(ranges, more_commands) |
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} |
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case (Nil, (command, _) #:: more_commands) => |
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if (has_overlay(command)) visible_overlay += command |
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|
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check_ranges(Nil, more_commands) |
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case _ => |
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} |
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} |
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val commands = |
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(if (overlays.is_empty) node.command_iterator(perspective.range) |
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else node.command_iterator()).toStream |
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check_ranges(perspective.ranges, commands) |
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(Command.Perspective(visible.toList), Command.Perspective(visible_overlay.toList)) |
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} |
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} |
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/** header edits: graph structure and outer syntax **/ |
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private def header_edits( |
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resources: Resources, |
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previous: Document.Version, |
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edits: List[Document.Edit_Text]): |
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(List[Document.Node.Name], Document.Nodes, List[Document.Edit_Command]) = |
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{ |
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val syntax_changed0 = new mutable.ListBuffer[Document.Node.Name] |
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var nodes = previous.nodes |
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val doc_edits = new mutable.ListBuffer[Document.Edit_Command] |
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edits foreach { |
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case (name, Document.Node.Deps(header)) => |
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val node = nodes(name) |
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val update_header = |
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node.header.errors.nonEmpty || header.errors.nonEmpty || node.header != header |
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if (update_header) { |
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val node1 = node.update_header(header) |
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if (node.header.imports.map(_._1) != node1.header.imports.map(_._1) || |
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node.header.keywords != node1.header.keywords) syntax_changed0 += name |
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nodes += (name -> node1) |
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doc_edits += (name -> Document.Node.Deps(header)) |
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} |
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case _ => |
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} |
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val syntax_changed = nodes.descendants(syntax_changed0.toList) |
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for (name <- syntax_changed) { |
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val node = nodes(name) |
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val syntax = |
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if (node.is_empty) None |
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else { |
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val header = node.header |
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val imports_syntax = header.imports.flatMap(a => nodes(a._1).syntax) |
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Some((resources.base_syntax /: imports_syntax)(_ ++ _).add_keywords(header.keywords)) |
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} |
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nodes += (name -> node.update_syntax(syntax)) |
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} |
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(syntax_changed, nodes, doc_edits.toList) |
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} |
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/** text edits **/ |
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/* edit individual command source */ |
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@tailrec def edit_text(eds: List[Text.Edit], commands: Linear_Set[Command]): Linear_Set[Command] = |
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{ |
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eds match { |
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case e :: es => |
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Document.Node.Commands.starts(commands.iterator).find { |
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case (cmd, cmd_start) => |
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e.can_edit(cmd.source, cmd_start) || |
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e.is_insert && e.start == cmd_start + cmd.length |
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} match { |
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case Some((cmd, cmd_start)) if e.can_edit(cmd.source, cmd_start) => |
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val (rest, text) = e.edit(cmd.source, cmd_start) |
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val new_commands = commands.insert_after(Some(cmd), Command.unparsed(text)) - cmd |
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edit_text(rest.toList ::: es, new_commands) |
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case Some((cmd, cmd_start)) => |
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edit_text(es, commands.insert_after(Some(cmd), Command.unparsed(e.text))) |
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case None => |
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require(e.is_insert && e.start == 0) |
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edit_text(es, commands.insert_after(None, Command.unparsed(e.text))) |
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} |
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case Nil => commands |
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} |
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} |
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/* reparse range of command spans */ |
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|
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@tailrec private def chop_common( |
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cmds: List[Command], |
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blobs_spans: List[(Command.Blobs_Info, Command_Span.Span)]) |
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: (List[Command], List[(Command.Blobs_Info, Command_Span.Span)]) = |
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{ |
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(cmds, blobs_spans) match { |
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case (cmd :: cmds, (blobs, span) :: rest) if cmd.blobs == blobs && cmd.span == span => |
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chop_common(cmds, rest) |
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case _ => (cmds, blobs_spans) |
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} |
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} |
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private def reparse_spans( |
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resources: Resources, |
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syntax: Prover.Syntax, |
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get_blob: Document.Node.Name => Option[Document.Blob], |
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can_import: Document.Node.Name => Boolean, |
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node_name: Document.Node.Name, |
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header: Document.Node.Header, |
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163 |
commands: Linear_Set[Command], |
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first: Command, last: Command): Linear_Set[Command] = |
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165 |
{ |
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166 |
val cmds0 = commands.iterator(first, last).toList |
55779 | 167 |
val blobs_spans0 = |
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168 |
syntax.parse_spans(cmds0.iterator.map(_.source).mkString).map(span => |
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169 |
(Command.blobs_info(resources, syntax, get_blob, can_import, node_name, header, span), |
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170 |
span)) |
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171 |
|
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val (cmds1, blobs_spans1) = chop_common(cmds0, blobs_spans0) |
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173 |
|
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val (rev_cmds2, rev_blobs_spans2) = chop_common(cmds1.reverse, blobs_spans1.reverse) |
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val cmds2 = rev_cmds2.reverse |
55779 | 176 |
val blobs_spans2 = rev_blobs_spans2.reverse |
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177 |
|
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178 |
cmds2 match { |
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179 |
case Nil => |
55779 | 180 |
assert(blobs_spans2.isEmpty) |
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181 |
commands |
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182 |
case cmd :: _ => |
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183 |
val hook = commands.prev(cmd) |
54462 | 184 |
val inserted = |
59684 | 185 |
blobs_spans2.map({ case (blobs, span) => |
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186 |
Command(Document_ID.make(), node_name, blobs, span) }) |
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187 |
(commands /: cmds2)(_ - _).append_after(hook, inserted) |
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188 |
} |
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189 |
} |
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190 |
|
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191 |
|
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192 |
/* recover command spans after edits */ |
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193 |
|
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194 |
// FIXME somewhat slow |
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195 |
private def recover_spans( |
56208 | 196 |
resources: Resources, |
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197 |
syntax: Prover.Syntax, |
56336 | 198 |
get_blob: Document.Node.Name => Option[Document.Blob], |
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199 |
can_import: Document.Node.Name => Boolean, |
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200 |
node_name: Document.Node.Name, |
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201 |
header: Document.Node.Header, |
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202 |
perspective: Command.Perspective, |
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203 |
commands: Linear_Set[Command]): Linear_Set[Command] = |
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204 |
{ |
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205 |
val visible = perspective.commands.toSet |
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206 |
|
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207 |
def next_invisible_command(cmds: Linear_Set[Command], from: Command): Command = |
57904 | 208 |
cmds.iterator(from).dropWhile(cmd => !cmd.is_proper || visible(cmd)) |
209 |
.find(_.is_proper) getOrElse cmds.last |
|
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210 |
|
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211 |
@tailrec def recover(cmds: Linear_Set[Command]): Linear_Set[Command] = |
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212 |
cmds.find(_.is_unparsed) match { |
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213 |
case Some(first_unparsed) => |
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val first = next_invisible_command(cmds.reverse, first_unparsed) |
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215 |
val last = next_invisible_command(cmds, first_unparsed) |
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216 |
recover(reparse_spans( |
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217 |
resources, syntax, get_blob, can_import, node_name, header, cmds, first, last)) |
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218 |
case None => cmds |
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219 |
} |
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220 |
recover(commands) |
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221 |
} |
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222 |
|
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223 |
|
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224 |
/* consolidate unfinished spans */ |
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225 |
|
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226 |
private def consolidate_spans( |
56208 | 227 |
resources: Resources, |
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228 |
syntax: Prover.Syntax, |
56336 | 229 |
get_blob: Document.Node.Name => Option[Document.Blob], |
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230 |
can_import: Document.Node.Name => Boolean, |
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231 |
reparse_limit: Int, |
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232 |
node_name: Document.Node.Name, |
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233 |
header: Document.Node.Header, |
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234 |
perspective: Command.Perspective, |
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235 |
commands: Linear_Set[Command]): Linear_Set[Command] = |
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236 |
{ |
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237 |
if (perspective.commands.isEmpty) commands |
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238 |
else { |
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239 |
commands.find(_.is_unfinished) match { |
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240 |
case Some(first_unfinished) => |
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241 |
val visible = perspective.commands.toSet |
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242 |
commands.reverse.find(visible) match { |
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243 |
case Some(last_visible) => |
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244 |
val it = commands.iterator(last_visible) |
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245 |
var last = last_visible |
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246 |
var i = 0 |
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247 |
while (i < reparse_limit && it.hasNext) { |
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248 |
last = it.next |
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249 |
i += last.length |
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250 |
} |
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251 |
reparse_spans(resources, syntax, get_blob, can_import, node_name, |
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252 |
header, commands, first_unfinished, last) |
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253 |
case None => commands |
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254 |
} |
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|
255 |
case None => commands |
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|
256 |
} |
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|
257 |
} |
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|
258 |
} |
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|
259 |
|
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|
260 |
|
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|
261 |
/* main */ |
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|
262 |
|
50761 | 263 |
def diff_commands(old_cmds: Linear_Set[Command], new_cmds: Linear_Set[Command]) |
52849 | 264 |
: List[Command.Edit] = |
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265 |
{ |
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266 |
val removed = old_cmds.iterator.filter(!new_cmds.contains(_)).toList |
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267 |
val inserted = new_cmds.iterator.filter(!old_cmds.contains(_)).toList |
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268 |
|
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269 |
removed.reverse.map(cmd => (old_cmds.prev(cmd), None)) ::: |
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270 |
inserted.map(cmd => (new_cmds.prev(cmd), Some(cmd))) |
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271 |
} |
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|
272 |
|
54513 | 273 |
private def text_edit( |
56208 | 274 |
resources: Resources, |
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275 |
syntax: Prover.Syntax, |
56336 | 276 |
get_blob: Document.Node.Name => Option[Document.Blob], |
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277 |
can_import: Document.Node.Name => Boolean, |
54513 | 278 |
reparse_limit: Int, |
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279 |
node: Document.Node, edit: Document.Edit_Text): Document.Node = |
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280 |
{ |
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|
281 |
edit match { |
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282 |
case (_, Document.Node.Clear()) => node.clear |
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283 |
|
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|
284 |
case (_, Document.Node.Blob(blob)) => node.init_blob(blob) |
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|
285 |
|
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286 |
case (name, Document.Node.Edits(text_edits)) => |
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|
287 |
if (name.is_theory) { |
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|
288 |
val commands0 = node.commands |
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|
289 |
val commands1 = edit_text(text_edits, commands0) |
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|
290 |
val commands2 = |
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|
291 |
recover_spans(resources, syntax, get_blob, can_import, name, |
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|
292 |
node.header, node.perspective.visible, commands1) |
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|
293 |
node.update_commands(commands2) |
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|
294 |
} |
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store blob content within document node: aux. files that were once open are made persistent;
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295 |
else node |
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apply all text edits to each node, before determining the resulting doc_edits -- allow several iterations to consolidate spans etc.;
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changeset
|
296 |
|
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|
297 |
case (_, Document.Node.Deps(_)) => node |
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|
298 |
|
52849 | 299 |
case (name, Document.Node.Perspective(required, text_perspective, overlays)) => |
52861
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commands with overlay remain visible, to avoid loosing printed output;
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|
300 |
val (visible, visible_overlay) = command_perspective(node, text_perspective, overlays) |
52849 | 301 |
val perspective: Document.Node.Perspective_Command = |
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commands with overlay remain visible, to avoid loosing printed output;
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changeset
|
302 |
Document.Node.Perspective(required, visible_overlay, overlays) |
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changeset
|
303 |
if (node.same_perspective(text_perspective, perspective)) node |
48755
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changeset
|
304 |
else |
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changeset
|
305 |
node.update_perspective(text_perspective, perspective). |
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changeset
|
306 |
update_commands( |
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diff
changeset
|
307 |
consolidate_spans(resources, syntax, get_blob, can_import, reparse_limit, |
58dfaa369c11
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diff
changeset
|
308 |
name, node.header, visible, node.commands)) |
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parents:
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changeset
|
309 |
} |
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parents:
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diff
changeset
|
310 |
} |
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parents:
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diff
changeset
|
311 |
|
56316
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propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
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diff
changeset
|
312 |
def parse_change( |
56208 | 313 |
resources: Resources, |
49524
68796a77c42b
Thy_Syntax.consolidate_spans is subject to editor_reparse_limit, for improved experience of unbalanced comments etc.;
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parents:
49414
diff
changeset
|
314 |
reparse_limit: Int, |
43722 | 315 |
previous: Document.Version, |
54521
744ea0025e11
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parents:
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diff
changeset
|
316 |
doc_blobs: Document.Blobs, |
56315 | 317 |
edits: List[Document.Edit_Text]): Session.Change = |
38374 | 318 |
{ |
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parents:
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changeset
|
319 |
val (syntax_changed, nodes0, doc_edits0) = header_edits(resources, previous, edits) |
58dfaa369c11
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parents:
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diff
changeset
|
320 |
|
56336 | 321 |
def get_blob(name: Document.Node.Name) = |
322 |
doc_blobs.get(name) orElse previous.nodes(name).get_blob |
|
323 |
||
59702
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wenzelm
parents:
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diff
changeset
|
324 |
def can_import(name: Document.Node.Name): Boolean = |
58dfaa369c11
hybrid use of command blobs: inlined errors and auxiliary files;
wenzelm
parents:
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diff
changeset
|
325 |
resources.loaded_theories(name.theory) || nodes0(name).has_header |
54518
81a9a54c57fc
always reparse nodes with thy_load commands, to update inlined files;
wenzelm
parents:
54517
diff
changeset
|
326 |
|
56316
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
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diff
changeset
|
327 |
val (doc_edits, version) = |
59077
7e0d3da6e6d8
node-specific syntax, with base_syntax as default;
wenzelm
parents:
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diff
changeset
|
328 |
if (edits.isEmpty) (Nil, Document.Version.make(previous.nodes)) |
56316
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wenzelm
parents:
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diff
changeset
|
329 |
else { |
b1cf8ddc2e04
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wenzelm
parents:
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diff
changeset
|
330 |
val reparse = |
59077
7e0d3da6e6d8
node-specific syntax, with base_syntax as default;
wenzelm
parents:
57906
diff
changeset
|
331 |
(syntax_changed /: nodes0.iterator)({ |
56316
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
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diff
changeset
|
332 |
case (reparse, (name, node)) => |
b1cf8ddc2e04
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wenzelm
parents:
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diff
changeset
|
333 |
if (node.load_commands.exists(_.blobs_changed(doc_blobs))) |
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
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diff
changeset
|
334 |
name :: reparse |
b1cf8ddc2e04
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wenzelm
parents:
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diff
changeset
|
335 |
else reparse |
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
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diff
changeset
|
336 |
}) |
b1cf8ddc2e04
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wenzelm
parents:
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diff
changeset
|
337 |
val reparse_set = reparse.toSet |
46946
acc8ebf980ca
more explicit header_edits before main text_edits;
wenzelm
parents:
46942
diff
changeset
|
338 |
|
56316
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
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diff
changeset
|
339 |
var nodes = nodes0 |
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
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diff
changeset
|
340 |
val doc_edits = new mutable.ListBuffer[Document.Edit_Command]; doc_edits ++= doc_edits0 |
54521
744ea0025e11
clarified Document.Blobs environment vs. actual edits of auxiliary files;
wenzelm
parents:
54519
diff
changeset
|
341 |
|
56316
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
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diff
changeset
|
342 |
val node_edits = |
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
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diff
changeset
|
343 |
(edits ::: reparse.map((_, Document.Node.Edits(Nil)))).groupBy(_._1) |
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
56315
diff
changeset
|
344 |
.asInstanceOf[Map[Document.Node.Name, List[Document.Edit_Text]]] // FIXME ??? |
38374 | 345 |
|
56316
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
56315
diff
changeset
|
346 |
node_edits foreach { |
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
56315
diff
changeset
|
347 |
case (name, edits) => |
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
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diff
changeset
|
348 |
val node = nodes(name) |
59077
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node-specific syntax, with base_syntax as default;
wenzelm
parents:
57906
diff
changeset
|
349 |
val syntax = node.syntax getOrElse resources.base_syntax |
56316
b1cf8ddc2e04
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wenzelm
parents:
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diff
changeset
|
350 |
val commands = node.commands |
48754
c2c1e5944536
clarified undefined, unparsed, unfinished command spans;
wenzelm
parents:
48748
diff
changeset
|
351 |
|
56316
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
56315
diff
changeset
|
352 |
val node1 = |
59319 | 353 |
if (reparse_set(name) && commands.nonEmpty) |
56316
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
56315
diff
changeset
|
354 |
node.update_commands( |
59702
58dfaa369c11
hybrid use of command blobs: inlined errors and auxiliary files;
wenzelm
parents:
59699
diff
changeset
|
355 |
reparse_spans(resources, syntax, get_blob, can_import, name, |
58dfaa369c11
hybrid use of command blobs: inlined errors and auxiliary files;
wenzelm
parents:
59699
diff
changeset
|
356 |
node.header, commands, commands.head, commands.last)) |
56316
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
56315
diff
changeset
|
357 |
else node |
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
56315
diff
changeset
|
358 |
val node2 = |
59702
58dfaa369c11
hybrid use of command blobs: inlined errors and auxiliary files;
wenzelm
parents:
59699
diff
changeset
|
359 |
(node1 /: edits)( |
58dfaa369c11
hybrid use of command blobs: inlined errors and auxiliary files;
wenzelm
parents:
59699
diff
changeset
|
360 |
text_edit(resources, syntax, get_blob, can_import, reparse_limit, _, _)) |
59372
503739360344
proper update of perspective after implicit edit due to reparse (e.g. ~~/src/HOL/Nat.thy);
wenzelm
parents:
59319
diff
changeset
|
361 |
val node3 = |
503739360344
proper update of perspective after implicit edit due to reparse (e.g. ~~/src/HOL/Nat.thy);
wenzelm
parents:
59319
diff
changeset
|
362 |
if (reparse_set.contains(name)) |
59702
58dfaa369c11
hybrid use of command blobs: inlined errors and auxiliary files;
wenzelm
parents:
59699
diff
changeset
|
363 |
text_edit(resources, syntax, get_blob, can_import, reparse_limit, |
59372
503739360344
proper update of perspective after implicit edit due to reparse (e.g. ~~/src/HOL/Nat.thy);
wenzelm
parents:
59319
diff
changeset
|
364 |
node2, (name, node2.edit_perspective)) |
503739360344
proper update of perspective after implicit edit due to reparse (e.g. ~~/src/HOL/Nat.thy);
wenzelm
parents:
59319
diff
changeset
|
365 |
else node2 |
54521
744ea0025e11
clarified Document.Blobs environment vs. actual edits of auxiliary files;
wenzelm
parents:
54519
diff
changeset
|
366 |
|
59372
503739360344
proper update of perspective after implicit edit due to reparse (e.g. ~~/src/HOL/Nat.thy);
wenzelm
parents:
59319
diff
changeset
|
367 |
if (!(node.same_perspective(node3.text_perspective, node3.perspective))) |
503739360344
proper update of perspective after implicit edit due to reparse (e.g. ~~/src/HOL/Nat.thy);
wenzelm
parents:
59319
diff
changeset
|
368 |
doc_edits += (name -> node3.perspective) |
54521
744ea0025e11
clarified Document.Blobs environment vs. actual edits of auxiliary files;
wenzelm
parents:
54519
diff
changeset
|
369 |
|
59372
503739360344
proper update of perspective after implicit edit due to reparse (e.g. ~~/src/HOL/Nat.thy);
wenzelm
parents:
59319
diff
changeset
|
370 |
doc_edits += (name -> Document.Node.Edits(diff_commands(commands, node3.commands))) |
503739360344
proper update of perspective after implicit edit due to reparse (e.g. ~~/src/HOL/Nat.thy);
wenzelm
parents:
59319
diff
changeset
|
371 |
|
503739360344
proper update of perspective after implicit edit due to reparse (e.g. ~~/src/HOL/Nat.thy);
wenzelm
parents:
59319
diff
changeset
|
372 |
nodes += (name -> node3) |
56316
b1cf8ddc2e04
propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents:
56315
diff
changeset
|
373 |
} |
59077
7e0d3da6e6d8
node-specific syntax, with base_syntax as default;
wenzelm
parents:
57906
diff
changeset
|
374 |
(doc_edits.toList.filterNot(_._2.is_void), Document.Version.make(nodes)) |
54513 | 375 |
} |
376 |
||
59319 | 377 |
Session.Change(previous, syntax_changed, syntax_changed.nonEmpty, doc_edits, version) |
38374 | 378 |
} |
34268 | 379 |
} |