/* Title: Pure/PIDE/rendering.scala
Author: Makarius
Isabelle-specific implementation of quasi-abstract rendering and
markup interpretation.
*/
package isabelle
import java.io.{File => JFile}
import java.nio.file.FileSystems
object Rendering
{
/* color */
object Color extends Enumeration
{
// background
val unprocessed1, running1, canceled, bad, intensify, entity, active, active_result,
markdown_bullet1, markdown_bullet2, markdown_bullet3, markdown_bullet4 = Value
val background_colors = values
// foreground
val quoted, antiquoted = Value
val foreground_colors = values -- background_colors
// message underline
val writeln, information, warning, legacy, error = Value
val message_underline_colors = values -- background_colors -- foreground_colors
// message background
val writeln_message, information_message, tracing_message,
warning_message, legacy_message, error_message = Value
val message_background_colors =
values -- background_colors -- foreground_colors -- message_underline_colors
// text
val main, keyword1, keyword2, keyword3, quasi_keyword, improper, operator,
tfree, tvar, free, skolem, bound, `var`, inner_numeral, inner_quoted,
inner_cartouche, comment1, comment2, comment3, dynamic, class_parameter,
antiquote, raw_text, plain_text = Value
val text_colors =
values -- background_colors -- foreground_colors -- message_underline_colors --
message_background_colors
// text overview
val unprocessed, running = Value
val text_overview_colors = Set(unprocessed, running, error, warning)
}
/* output messages */
val state_pri = 1
val writeln_pri = 2
val information_pri = 3
val tracing_pri = 4
val warning_pri = 5
val legacy_pri = 6
val error_pri = 7
val message_pri = Map(
Markup.STATE -> state_pri,
Markup.STATE_MESSAGE -> state_pri,
Markup.WRITELN -> writeln_pri,
Markup.WRITELN_MESSAGE -> writeln_pri,
Markup.INFORMATION -> information_pri,
Markup.INFORMATION_MESSAGE -> information_pri,
Markup.TRACING -> tracing_pri,
Markup.TRACING_MESSAGE -> tracing_pri,
Markup.WARNING -> warning_pri,
Markup.WARNING_MESSAGE -> warning_pri,
Markup.LEGACY -> legacy_pri,
Markup.LEGACY_MESSAGE -> legacy_pri,
Markup.ERROR -> error_pri,
Markup.ERROR_MESSAGE -> error_pri
).withDefaultValue(0)
val message_underline_color = Map(
writeln_pri -> Color.writeln,
information_pri -> Color.information,
warning_pri -> Color.warning,
legacy_pri -> Color.legacy,
error_pri -> Color.error)
val message_background_color = Map(
writeln_pri -> Color.writeln_message,
information_pri -> Color.information_message,
tracing_pri -> Color.tracing_message,
warning_pri -> Color.warning_message,
legacy_pri -> Color.legacy_message,
error_pri -> Color.error_message)
def output_messages(results: Command.Results): List[XML.Tree] =
{
val (states, other) =
results.iterator.map(_._2).filterNot(Protocol.is_result(_)).toList
.partition(Protocol.is_state(_))
states ::: other
}
/* text color */
val text_color = Map(
Markup.KEYWORD1 -> Color.keyword1,
Markup.KEYWORD2 -> Color.keyword2,
Markup.KEYWORD3 -> Color.keyword3,
Markup.QUASI_KEYWORD -> Color.quasi_keyword,
Markup.IMPROPER -> Color.improper,
Markup.OPERATOR -> Color.operator,
Markup.STRING -> Color.main,
Markup.ALT_STRING -> Color.main,
Markup.VERBATIM -> Color.main,
Markup.CARTOUCHE -> Color.main,
Markup.LITERAL -> Color.keyword1,
Markup.DELIMITER -> Color.main,
Markup.TFREE -> Color.tfree,
Markup.TVAR -> Color.tvar,
Markup.FREE -> Color.free,
Markup.SKOLEM -> Color.skolem,
Markup.BOUND -> Color.bound,
Markup.VAR -> Color.`var`,
Markup.INNER_STRING -> Color.inner_quoted,
Markup.INNER_CARTOUCHE -> Color.inner_cartouche,
Markup.DYNAMIC_FACT -> Color.dynamic,
Markup.CLASS_PARAMETER -> Color.class_parameter,
Markup.ANTIQUOTE -> Color.antiquote,
Markup.RAW_TEXT -> Color.raw_text,
Markup.PLAIN_TEXT -> Color.plain_text,
Markup.ML_KEYWORD1 -> Color.keyword1,
Markup.ML_KEYWORD2 -> Color.keyword2,
Markup.ML_KEYWORD3 -> Color.keyword3,
Markup.ML_DELIMITER -> Color.main,
Markup.ML_NUMERAL -> Color.inner_numeral,
Markup.ML_CHAR -> Color.inner_quoted,
Markup.ML_STRING -> Color.inner_quoted,
Markup.ML_COMMENT -> Color.comment1,
Markup.COMMENT -> Color.comment1,
Markup.COMMENT1 -> Color.comment1,
Markup.COMMENT2 -> Color.comment2,
Markup.COMMENT3 -> Color.comment3)
val foreground =
Map(
Markup.STRING -> Color.quoted,
Markup.ALT_STRING -> Color.quoted,
Markup.VERBATIM -> Color.quoted,
Markup.CARTOUCHE -> Color.quoted,
Markup.ANTIQUOTED -> Color.antiquoted)
/* tooltips */
val tooltip_descriptions =
Map(
Markup.CITATION -> "citation",
Markup.TOKEN_RANGE -> "inner syntax token",
Markup.FREE -> "free variable",
Markup.SKOLEM -> "skolem variable",
Markup.BOUND -> "bound variable",
Markup.VAR -> "schematic variable",
Markup.TFREE -> "free type variable",
Markup.TVAR -> "schematic type variable")
/* markup elements */
val semantic_completion_elements =
Markup.Elements(Markup.COMPLETION, Markup.NO_COMPLETION)
val language_context_elements =
Markup.Elements(Markup.STRING, Markup.ALT_STRING, Markup.VERBATIM,
Markup.CARTOUCHE, Markup.COMMENT, Markup.LANGUAGE,
Markup.ML_STRING, Markup.ML_COMMENT)
val language_elements = Markup.Elements(Markup.LANGUAGE)
val citation_elements = Markup.Elements(Markup.CITATION)
val active_elements =
Markup.Elements(Markup.DIALOG, Markup.BROWSER, Markup.GRAPHVIEW, Markup.THEORY_EXPORTS,
Markup.SENDBACK, Markup.JEDIT_ACTION, Markup.SIMP_TRACE_PANEL)
val background_elements =
Document_Status.Command_Status.proper_elements + Markup.WRITELN_MESSAGE +
Markup.STATE_MESSAGE + Markup.INFORMATION_MESSAGE +
Markup.TRACING_MESSAGE + Markup.WARNING_MESSAGE +
Markup.LEGACY_MESSAGE + Markup.ERROR_MESSAGE +
Markup.BAD + Markup.INTENSIFY + Markup.ENTITY +
Markup.Markdown_Bullet.name ++ active_elements
val foreground_elements = Markup.Elements(foreground.keySet)
val text_color_elements = Markup.Elements(text_color.keySet)
val tooltip_elements =
Markup.Elements(Markup.LANGUAGE, Markup.EXPRESSION, Markup.TIMING, Markup.ENTITY,
Markup.SORTING, Markup.TYPING, Markup.CLASS_PARAMETER, Markup.ML_TYPING,
Markup.ML_BREAKPOINT, Markup.PATH, Markup.DOC, Markup.URL,
Markup.MARKDOWN_PARAGRAPH, Markup.MARKDOWN_ITEM, Markup.Markdown_List.name) ++
Markup.Elements(tooltip_descriptions.keySet)
val tooltip_message_elements =
Markup.Elements(Markup.WRITELN, Markup.INFORMATION, Markup.WARNING, Markup.LEGACY, Markup.ERROR,
Markup.BAD)
val caret_focus_elements = Markup.Elements(Markup.ENTITY)
val antiquoted_elements = Markup.Elements(Markup.ANTIQUOTED)
val meta_data_elements =
Markup.Elements(Markup.META_TITLE, Markup.META_CREATOR, Markup.META_CONTRIBUTOR,
Markup.META_DATE, Markup.META_DESCRIPTION, Markup.META_LICENSE)
val markdown_elements =
Markup.Elements(Markup.MARKDOWN_PARAGRAPH, Markup.MARKDOWN_ITEM, Markup.Markdown_List.name,
Markup.Markdown_Bullet.name)
}
abstract class Rendering(
val snapshot: Document.Snapshot,
val options: Options,
val session: Session)
{
override def toString: String = "Rendering(" + snapshot.toString + ")"
def model: Document.Model
/* caret */
def before_caret_range(caret: Text.Offset): Text.Range =
{
val former_caret = snapshot.revert(caret)
snapshot.convert(Text.Range(former_caret - 1, former_caret))
}
/* completion */
def semantic_completion(completed_range: Option[Text.Range], caret_range: Text.Range)
: Option[Text.Info[Completion.Semantic]] =
if (snapshot.is_outdated) None
else {
snapshot.select(caret_range, Rendering.semantic_completion_elements, _ =>
{
case Completion.Semantic.Info(info) =>
completed_range match {
case Some(range0) if range0.contains(info.range) && range0 != info.range => None
case _ => Some(info)
}
case _ => None
}).headOption.map(_.info)
}
def semantic_completion_result(
history: Completion.History,
unicode: Boolean,
completed_range: Option[Text.Range],
caret_range: Text.Range): (Boolean, Option[Completion.Result]) =
{
semantic_completion(completed_range, caret_range) match {
case Some(Text.Info(_, Completion.No_Completion)) => (true, None)
case Some(Text.Info(range, names: Completion.Names)) =>
model.get_text(range) match {
case Some(original) => (false, names.complete(range, history, unicode, original))
case None => (false, None)
}
case None => (false, None)
}
}
def language_context(range: Text.Range): Option[Completion.Language_Context] =
snapshot.select(range, Rendering.language_context_elements, _ =>
{
case Text.Info(_, XML.Elem(Markup.Language(language, symbols, antiquotes, delimited), _)) =>
if (delimited) Some(Completion.Language_Context(language, symbols, antiquotes))
else None
case Text.Info(_, elem)
if elem.name == Markup.ML_STRING || elem.name == Markup.ML_COMMENT =>
Some(Completion.Language_Context.ML_inner)
case Text.Info(_, _) =>
Some(Completion.Language_Context.inner)
}).headOption.map(_.info)
def citation(range: Text.Range): Option[Text.Info[String]] =
snapshot.select(range, Rendering.citation_elements, _ =>
{
case Text.Info(info_range, XML.Elem(Markup.Citation(name), _)) =>
Some(Text.Info(snapshot.convert(info_range), name))
case _ => None
}).headOption.map(_.info)
/* file-system path completion */
def language_path(range: Text.Range): Option[Text.Range] =
snapshot.select(range, Rendering.language_elements, _ =>
{
case Text.Info(info_range, XML.Elem(Markup.Language(Markup.Language.PATH, _, _, _), _)) =>
Some(snapshot.convert(info_range))
case _ => None
}).headOption.map(_.info)
def path_completion(caret: Text.Offset): Option[Completion.Result] =
{
def complete(text: String): List[(String, List[String])] =
{
try {
val path = Path.explode(text)
val (dir, base_name) =
if (text == "" || text.endsWith("/")) (path, "")
else (path.dir, path.file_name)
val directory = new JFile(session.resources.append(snapshot.node_name, dir))
val files = directory.listFiles
if (files == null) Nil
else {
val ignore =
space_explode(':', options.string("completion_path_ignore")).
map(s => FileSystems.getDefault.getPathMatcher("glob:" + s))
(for {
file <- files.iterator
name = file.getName
if name.startsWith(base_name)
path_name = new JFile(name).toPath
if !ignore.exists(matcher => matcher.matches(path_name))
text1 = (dir + Path.basic(name)).implode_short
if text != text1
is_dir = new JFile(directory, name).isDirectory
replacement = text1 + (if (is_dir) "/" else "")
descr = List(text1, if (is_dir) "(directory)" else "(file)")
} yield (replacement, descr)).take(options.int("completion_limit")).toList
}
}
catch { case ERROR(_) => Nil }
}
def is_wrapped(s: String): Boolean =
s.startsWith("\"") && s.endsWith("\"") ||
s.startsWith(Symbol.open_decoded) && s.endsWith(Symbol.close_decoded)
for {
r1 <- language_path(before_caret_range(caret))
s1 <- model.get_text(r1)
if is_wrapped(s1)
r2 = Text.Range(r1.start + 1, r1.stop - 1)
s2 = s1.substring(1, s1.length - 1)
if Path.is_valid(s2)
paths = complete(s2)
if paths.nonEmpty
items = paths.map(p => Completion.Item(r2, s2, "", p._2, p._1, 0, false))
} yield Completion.Result(r2, s2, false, items)
}
/* spell checker */
private lazy val spell_checker_include =
Markup.Elements(space_explode(',', options.string("spell_checker_include")): _*)
private lazy val spell_checker_elements =
spell_checker_include ++
Markup.Elements(space_explode(',', options.string("spell_checker_exclude")): _*)
def spell_checker(range: Text.Range): List[Text.Info[Text.Range]] =
{
val result =
snapshot.select(range, spell_checker_elements, _ =>
{
case info =>
Some(
if (spell_checker_include(info.info.name))
Some(snapshot.convert(info.range))
else None)
})
for (Text.Info(range, Some(range1)) <- result)
yield Text.Info(range, range1)
}
def spell_checker_point(range: Text.Range): Option[Text.Range] =
spell_checker(range).headOption.map(_.info)
/* text background */
def background(elements: Markup.Elements, range: Text.Range, focus: Set[Long])
: List[Text.Info[Rendering.Color.Value]] =
{
for {
Text.Info(r, result) <-
snapshot.cumulate[(List[Markup], Option[Rendering.Color.Value])](
range, (List(Markup.Empty), None), Rendering.background_elements,
command_states =>
{
case (((markups, color), Text.Info(_, XML.Elem(markup, _))))
if markups.nonEmpty && Document_Status.Command_Status.proper_elements(markup.name) =>
Some((markup :: markups, color))
case (_, Text.Info(_, XML.Elem(Markup(Markup.BAD, _), _))) =>
Some((Nil, Some(Rendering.Color.bad)))
case (_, Text.Info(_, XML.Elem(Markup(Markup.INTENSIFY, _), _))) =>
Some((Nil, Some(Rendering.Color.intensify)))
case (_, Text.Info(_, XML.Elem(Markup(Markup.ENTITY, props), _))) =>
props match {
case Markup.Entity.Def(i) if focus(i) => Some((Nil, Some(Rendering.Color.entity)))
case Markup.Entity.Ref(i) if focus(i) => Some((Nil, Some(Rendering.Color.entity)))
case _ => None
}
case (_, Text.Info(_, XML.Elem(Markup.Markdown_Bullet(depth), _))) =>
val color =
depth % 4 match {
case 1 => Rendering.Color.markdown_bullet1
case 2 => Rendering.Color.markdown_bullet2
case 3 => Rendering.Color.markdown_bullet3
case _ => Rendering.Color.markdown_bullet4
}
Some((Nil, Some(color)))
case (acc, Text.Info(_, Protocol.Dialog(_, serial, result))) =>
command_states.collectFirst(
{ case st if st.results.defined(serial) => st.results.get(serial).get }) match
{
case Some(Protocol.Dialog_Result(res)) if res == result =>
Some((Nil, Some(Rendering.Color.active_result)))
case _ =>
Some((Nil, Some(Rendering.Color.active)))
}
case (_, Text.Info(_, elem)) =>
if (Rendering.active_elements(elem.name))
Some((Nil, Some(Rendering.Color.active)))
else None
})
color <-
(result match {
case (markups, opt_color) if markups.nonEmpty =>
val status = Document_Status.Command_Status.make(markups.iterator)
if (status.is_unprocessed) Some(Rendering.Color.unprocessed1)
else if (status.is_running) Some(Rendering.Color.running1)
else if (status.is_canceled) Some(Rendering.Color.canceled)
else opt_color
case (_, opt_color) => opt_color
})
} yield Text.Info(r, color)
}
/* text foreground */
def foreground(range: Text.Range): List[Text.Info[Rendering.Color.Value]] =
snapshot.select(range, Rendering.foreground_elements, _ =>
{
case info => Some(Rendering.foreground(info.info.name))
})
/* caret focus */
private def entity_focus(range: Text.Range,
check: (Boolean, Long) => Boolean = (is_def: Boolean, i: Long) => is_def): Set[Long] =
{
val results =
snapshot.cumulate[Set[Long]](range, Set.empty, Rendering.caret_focus_elements, _ =>
{
case (serials, Text.Info(_, XML.Elem(Markup(Markup.ENTITY, props), _))) =>
props match {
case Markup.Entity.Def(i) if check(true, i) => Some(serials + i)
case Markup.Entity.Ref(i) if check(false, i) => Some(serials + i)
case _ => None
}
case _ => None
})
(Set.empty[Long] /: results){ case (s1, Text.Info(_, s2)) => s1 ++ s2 }
}
def caret_focus(caret_range: Text.Range, visible_range: Text.Range): Set[Long] =
{
val focus_defs = entity_focus(caret_range)
if (focus_defs.nonEmpty) focus_defs
else {
val visible_defs = entity_focus(visible_range)
entity_focus(caret_range, (is_def: Boolean, i: Long) => !is_def && visible_defs.contains(i))
}
}
def caret_focus_ranges(caret_range: Text.Range, visible_range: Text.Range): List[Text.Range] =
{
val focus = caret_focus(caret_range, visible_range)
if (focus.nonEmpty) {
val results =
snapshot.cumulate[Boolean](visible_range, false, Rendering.caret_focus_elements, _ =>
{
case (_, Text.Info(_, XML.Elem(Markup(Markup.ENTITY, props), _))) =>
props match {
case Markup.Entity.Def(i) if focus(i) => Some(true)
case Markup.Entity.Ref(i) if focus(i) => Some(true)
case _ => None
}
})
for (info <- results if info.info) yield info.range
}
else Nil
}
/* message underline color */
def message_underline_color(elements: Markup.Elements, range: Text.Range)
: List[Text.Info[Rendering.Color.Value]] =
{
val results =
snapshot.cumulate[Int](range, 0, elements, _ =>
{
case (pri, Text.Info(_, elem)) => Some(pri max Rendering.message_pri(elem.name))
})
for {
Text.Info(r, pri) <- results
color <- Rendering.message_underline_color.get(pri)
} yield Text.Info(r, color)
}
/* tooltips */
def timing_threshold: Double = 0.0
private sealed case class Tooltip_Info(
range: Text.Range,
timing: Timing = Timing.zero,
messages: List[Command.Results.Entry] = Nil,
rev_infos: List[(Boolean, XML.Tree)] = Nil)
{
def + (t: Timing): Tooltip_Info = copy(timing = timing + t)
def + (r0: Text.Range, serial: Long, tree: XML.Tree): Tooltip_Info =
{
val r = snapshot.convert(r0)
if (range == r) copy(messages = (serial -> tree) :: messages)
else copy(range = r, messages = List(serial -> tree))
}
def + (r0: Text.Range, important: Boolean, tree: XML.Tree): Tooltip_Info =
{
val r = snapshot.convert(r0)
if (range == r) copy(rev_infos = (important -> tree) :: rev_infos)
else copy (range = r, rev_infos = List(important -> tree))
}
def timing_info(tree: XML.Tree): Option[XML.Tree] =
tree match {
case XML.Elem(Markup(Markup.TIMING, _), _) =>
if (timing.elapsed.seconds >= timing_threshold) Some(XML.Text(timing.message)) else None
case _ => Some(tree)
}
def infos(important: Boolean): List[XML.Tree] =
for {
(is_important, tree) <- rev_infos.reverse if is_important == important
tree1 <- timing_info(tree)
} yield tree1
}
def perhaps_append_file(node_name: Document.Node.Name, name: String): String =
if (Path.is_valid(name)) session.resources.append(node_name, Path.explode(name)) else name
def tooltips(elements: Markup.Elements, range: Text.Range): Option[Text.Info[List[XML.Tree]]] =
{
val results =
snapshot.cumulate[Tooltip_Info](range, Tooltip_Info(range), elements, command_states =>
{
case (info, Text.Info(_, XML.Elem(Markup.Timing(t), _))) => Some(info + t)
case (info, Text.Info(r0, msg @ XML.Elem(Markup(Markup.BAD, Markup.Serial(i)), body)))
if body.nonEmpty => Some(info + (r0, i, msg))
case (info, Text.Info(r0, XML.Elem(Markup(name, props), _)))
if Rendering.tooltip_message_elements(name) =>
for ((i, tree) <- Command.State.get_result_proper(command_states, props))
yield (info + (r0, i, tree))
case (info, Text.Info(r0, XML.Elem(Markup.Entity(kind, name), _)))
if kind != "" && kind != Markup.ML_DEF =>
val kind1 = Word.implode(Word.explode('_', kind))
val txt1 =
if (name == "") kind1
else if (kind1 == "") quote(name)
else kind1 + " " + quote(name)
val info1 = info + (r0, true, XML.Text(txt1))
Some(if (kind == Markup.COMMAND) info1 + (r0, true, XML.elem(Markup.TIMING)) else info1)
case (info, Text.Info(r0, XML.Elem(Markup.Path(name), _))) =>
val file = perhaps_append_file(snapshot.node_name, name)
val text =
if (name == file) "file " + quote(file)
else "path " + quote(name) + "\nfile " + quote(file)
Some(info + (r0, true, XML.Text(text)))
case (info, Text.Info(r0, XML.Elem(Markup.Doc(name), _))) =>
val text = "doc " + quote(name)
Some(info + (r0, true, XML.Text(text)))
case (info, Text.Info(r0, XML.Elem(Markup.Url(name), _))) =>
Some(info + (r0, true, XML.Text("URL " + quote(name))))
case (info, Text.Info(r0, XML.Elem(Markup(name, _), body)))
if name == Markup.SORTING || name == Markup.TYPING =>
Some(info + (r0, true, Pretty.block(XML.Text("::") :: Pretty.brk(1) :: body)))
case (info, Text.Info(r0, XML.Elem(Markup(Markup.CLASS_PARAMETER, _), body))) =>
Some(info + (r0, true, Pretty.block(0, body)))
case (info, Text.Info(r0, XML.Elem(Markup(Markup.ML_TYPING, _), body))) =>
Some(info + (r0, false, Pretty.block(XML.Text("ML:") :: Pretty.brk(1) :: body)))
case (info, Text.Info(r0, Protocol.ML_Breakpoint(breakpoint))) =>
val text =
if (session.debugger.breakpoint_state(breakpoint)) "breakpoint (enabled)"
else "breakpoint (disabled)"
Some(info + (r0, true, XML.Text(text)))
case (info, Text.Info(r0, XML.Elem(Markup.Language(language, _, _, _), _))) =>
val lang = Word.implode(Word.explode('_', language))
Some(info + (r0, true, XML.Text("language: " + lang)))
case (info, Text.Info(r0, XML.Elem(Markup.Expression(kind), _))) =>
val descr = if (kind == "") "expression" else "expression: " + kind
Some(info + (r0, true, XML.Text(descr)))
case (info, Text.Info(r0, XML.Elem(Markup(Markup.MARKDOWN_PARAGRAPH, _), _))) =>
Some(info + (r0, true, XML.Text("Markdown: paragraph")))
case (info, Text.Info(r0, XML.Elem(Markup(Markup.MARKDOWN_ITEM, _), _))) =>
Some(info + (r0, true, XML.Text("Markdown: item")))
case (info, Text.Info(r0, XML.Elem(Markup.Markdown_List(kind), _))) =>
Some(info + (r0, true, XML.Text("Markdown: " + kind)))
case (info, Text.Info(r0, XML.Elem(Markup(name, _), _))) =>
Rendering.tooltip_descriptions.get(name).map(desc => info + (r0, true, XML.Text(desc)))
}).map(_.info)
if (results.isEmpty) None
else {
val r = Text.Range(results.head.range.start, results.last.range.stop)
val all_tips =
Command.Results.make(results.flatMap(_.messages)).iterator.map(_._2).toList :::
results.flatMap(res => res.infos(true)) :::
results.flatMap(res => res.infos(false)).lastOption.toList
if (all_tips.isEmpty) None else Some(Text.Info(r, all_tips))
}
}
/* command status overview */
def overview_color(range: Text.Range): Option[Rendering.Color.Value] =
{
if (snapshot.is_outdated) None
else {
val results =
snapshot.cumulate[List[Markup]](range, Nil, Document_Status.Command_Status.liberal_elements,
_ =>
{
case (status, Text.Info(_, elem)) => Some(elem.markup :: status)
}, status = true)
if (results.isEmpty) None
else {
val status = Document_Status.Command_Status.make(results.iterator.flatMap(_.info))
if (status.is_running) Some(Rendering.Color.running)
else if (status.is_failed) Some(Rendering.Color.error)
else if (status.is_warned) Some(Rendering.Color.warning)
else if (status.is_unprocessed) Some(Rendering.Color.unprocessed)
else None
}
}
}
/* antiquoted text */
def antiquoted(range: Text.Range): Option[Text.Range] =
snapshot.cumulate[Option[Text.Range]](range, None, Rendering.antiquoted_elements, _ =>
{
case (res, info) => if (res.isEmpty) Some(Some(info.range)) else None
}).headOption.flatMap(_.info)
/* meta data */
def meta_data(range: Text.Range): Properties.T =
{
val results =
snapshot.cumulate[Properties.T](range, Nil, Rendering.meta_data_elements, _ =>
{
case (res, Text.Info(_, elem)) =>
val plain_text = XML.content(elem)
Some((elem.name -> plain_text) :: res)
})
Library.distinct(results.flatMap(_.info.reverse))
}
}