author | wenzelm |
Tue, 23 Nov 2021 21:02:13 +0100 | |
changeset 74836 | a97ec0954c50 |
parent 74829 | f31229171b3b |
child 74838 | 4c8d9479f916 |
permissions | -rw-r--r-- |
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/* Title: Pure/Thy/latex.scala |
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Author: Makarius |
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Support for LaTeX. |
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*/ |
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package isabelle |
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import java.io.{File => JFile} |
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import scala.annotation.tailrec |
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import scala.collection.mutable |
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import scala.util.matching.Regex |
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object Latex |
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{ |
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/* output name for LaTeX macros */ |
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private val output_name_map: Map[Char, String] = |
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Map('_' -> "UNDERSCORE", |
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'\'' -> "PRIME", |
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'0' -> "ZERO", |
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'1' -> "ONE", |
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'2' -> "TWO", |
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'3' -> "THREE", |
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'4' -> "FOUR", |
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'5' -> "FIVE", |
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'6' -> "SIX", |
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'7' -> "SEVEN", |
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'8' -> "EIGHT", |
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'9' -> "NINE") |
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def output_name(name: String): String = |
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if (name.exists(output_name_map.keySet)) { |
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val res = new StringBuilder |
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for (c <- name) { |
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output_name_map.get(c) match { |
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case None => res += c |
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case Some(s) => res ++= s |
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} |
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} |
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res.toString |
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} |
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else name |
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/* index entries */ |
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def index_escape(str: String): String = |
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{ |
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val special1 = "!\"@|" |
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val special2 = "\\{}#" |
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if (str.exists(c => special1.contains(c) || special2.contains(c))) { |
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val res = new StringBuilder |
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for (c <- str) { |
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if (special1.contains(c)) { |
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res ++= "\\char" |
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res ++= Value.Int(c) |
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} |
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else { |
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if (special2.contains(c)) { res += '"'} |
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res += c |
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} |
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} |
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res.toString |
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} |
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else str |
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} |
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object Index_Item |
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{ |
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sealed case class Value(text: Text, like: String) |
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def unapply(tree: XML.Tree): Option[Value] = |
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tree match { |
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case XML.Wrapped_Elem(Markup.Latex_Index_Item(_), text, like) => |
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Some(Value(text, XML.content(like))) |
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case _ => None |
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} |
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} |
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object Index_Entry |
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{ |
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sealed case class Value(items: List[Index_Item.Value], kind: String) |
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def unapply(tree: XML.Tree): Option[Value] = |
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tree match { |
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case XML.Elem(Markup.Latex_Index_Entry(kind), body) => |
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val items = body.map(Index_Item.unapply) |
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if (items.forall(_.isDefined)) Some(Value(items.map(_.get), kind)) else None |
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case _ => None |
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} |
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} |
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/* output text and positions */ |
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type Text = XML.Body |
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def position(a: String, b: String): String = "%:%" + a + "=" + b + "%:%\n" |
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def init_position(file_pos: String): List[String] = |
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if (file_pos.isEmpty) Nil |
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else List("\\endinput\n", position(Markup.FILE, file_pos)) |
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Latex.Output.latex_heading depends on option document_heading_prefix, e.g. relevant for Dagstuhl LIPIcs which prefers unaliased \section etc.;
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class Output(options: Options) |
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{ |
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def latex_output(latex_text: Text): String = apply(latex_text) |
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def latex_macro0(name: String): Text = |
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XML.string("\\" + name) |
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def latex_macro(name: String, body: Text): Text = |
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XML.enclose("\\" + name + "{", "}", body) |
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def latex_environment(name: String, body: Text): Text = |
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XML.enclose("%\n\\begin{" + name + "}%\n", "%\n\\end{" + name + "}", body) |
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def latex_heading(kind: String, props: Properties.T, body: Text): Text = |
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{ |
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val prefix = |
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"%\n\\" + options.string("document_heading_prefix") + kind + |
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Markup.Optional_Argument.get(props) |
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XML.enclose(prefix + "{", "%\n}\n", body) |
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} |
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def latex_body(kind: String, props: Properties.T, body: Text): Text = |
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latex_environment("isamarkup" + kind, body) |
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def latex_delim(name: String, body: Text): Text = |
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{ |
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val s = output_name(name) |
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XML.enclose("%\n\\isadelim" + s + "\n", "%\n\\endisadelim" + s + "\n", body) |
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} |
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def latex_tag(name: String, body: Text): Text = |
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{ |
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val s = output_name(name) |
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XML.enclose("%\n\\isatag" + s + "\n", "%\n\\endisatag" + s + "\n{\\isafold" + s + "}%\n", body) |
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} |
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def index_item(item: Index_Item.Value): String = |
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{ |
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val like = if (item.like.isEmpty) "" else index_escape(item.like) + "@" |
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val text = index_escape(latex_output(item.text)) |
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like + text |
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} |
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def index_entry(entry: Index_Entry.Value): Text = |
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{ |
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val items = entry.items.map(index_item).mkString("!") |
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val kind = if (entry.kind.isEmpty) "" else "|" + index_escape(entry.kind) |
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latex_macro("index", XML.string(items + kind)) |
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} |
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/* standard output of text with per-line positions */ |
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def apply(latex_text: Text, file_pos: String = ""): String = |
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{ |
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var line = 1 |
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val result = new mutable.ListBuffer[String] |
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val positions = new mutable.ListBuffer[String] ++= init_position(file_pos) |
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def traverse(body: XML.Body): Unit = |
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{ |
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body.foreach { |
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case XML.Text(s) => |
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line += s.count(_ == '\n') |
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result += s |
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case XML.Elem(Markup.Document_Latex(props), body) => |
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for { l <- Position.Line.unapply(props) if positions.nonEmpty } { |
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val s = position(Value.Int(line), Value.Int(l)) |
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if (positions.last != s) positions += s |
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} |
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traverse(body) |
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case XML.Elem(Markup.Latex_Output(_), body) => |
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traverse(XML.string(latex_output(body))) |
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case XML.Elem(Markup.Latex_Macro0(name), Nil) => |
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traverse(latex_macro0(name)) |
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case XML.Elem(Markup.Latex_Macro(name), body) => |
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traverse(latex_macro(name, body)) |
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case XML.Elem(Markup.Latex_Environment(name), body) => |
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traverse(latex_environment(name, body)) |
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case XML.Elem(markup @ Markup.Latex_Heading(kind), body) => |
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traverse(latex_heading(kind, markup.properties, body)) |
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case XML.Elem(markup @ Markup.Latex_Body(kind), body) => |
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traverse(latex_body(kind, markup.properties, body)) |
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case XML.Elem(Markup.Latex_Delim(name), body) => |
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traverse(latex_delim(name, body)) |
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case XML.Elem(Markup.Latex_Tag(name), body) => |
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traverse(latex_tag(name, body)) |
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case Index_Entry(entry) => |
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traverse(index_entry(entry)) |
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case t: XML.Tree => |
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error("Bad latex markup" + |
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(if (file_pos.isEmpty) "" else Position.here(Position.File(file_pos))) + ":\n" + |
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XML.string_of_tree(t)) |
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} |
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} |
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traverse(latex_text) |
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result ++= positions |
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result.mkString |
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} |
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} |
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|
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|
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/* generated .tex file */ |
210 |
||
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private val File_Pattern = """^%:%file=(.+)%:%$""".r |
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private val Line_Pattern = """^*%:%(\d+)=(\d+)%:%$""".r |
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|
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def read_tex_file(tex_file: Path): Tex_File = |
|
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{ |
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val positions = |
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Line.logical_lines(File.read(tex_file)).reverse. |
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takeWhile(_ != "\\endinput").reverse |
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219 |
|
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val source_file = |
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positions match { |
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case File_Pattern(file) :: _ => Some(file) |
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case _ => None |
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} |
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|
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val source_lines = |
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if (source_file.isEmpty) Nil |
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else |
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positions.flatMap(line => |
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line match { |
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case Line_Pattern(Value.Int(line), Value.Int(source_line)) => Some(line -> source_line) |
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case _ => None |
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}) |
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234 |
|
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new Tex_File(tex_file, source_file, source_lines) |
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} |
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237 |
|
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final class Tex_File private[Latex]( |
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tex_file: Path, source_file: Option[String], source_lines: List[(Int, Int)]) |
67173 | 240 |
{ |
241 |
override def toString: String = tex_file.toString |
|
242 |
||
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def source_position(l: Int): Option[Position.T] = |
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source_file match { |
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case None => None |
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case Some(file) => |
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val source_line = |
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source_lines.iterator.takeWhile({ case (m, _) => m <= l }). |
249 |
foldLeft(0) { case (_, (_, n)) => n } |
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if (source_line == 0) None else Some(Position.Line_File(source_line, file)) |
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} |
252 |
||
253 |
def position(line: Int): Position.T = |
|
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source_position(line) getOrElse Position.Line_File(line, tex_file.implode) |
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} |
256 |
||
257 |
||
258 |
/* latex log */ |
|
259 |
||
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def latex_errors(dir: Path, root_name: String): List[String] = |
261 |
{ |
|
262 |
val root_log_path = dir + Path.explode(root_name).ext("log") |
|
263 |
if (root_log_path.is_file) { |
|
264 |
for { (msg, pos) <- filter_errors(dir, File.read(root_log_path)) } |
|
265 |
yield "Latex error" + Position.here(pos) + ":\n" + Library.indent_lines(2, msg) |
|
266 |
} |
|
267 |
else Nil |
|
268 |
} |
|
269 |
||
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def filter_errors(dir: Path, root_log: String): List[(String, Position.T)] = |
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{ |
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val seen_files = Synchronized(Map.empty[JFile, Tex_File]) |
273 |
||
274 |
def check_tex_file(path: Path): Option[Tex_File] = |
|
275 |
seen_files.change_result(seen => |
|
276 |
seen.get(path.file) match { |
|
277 |
case None => |
|
278 |
if (path.is_file) { |
|
279 |
val tex_file = read_tex_file(path) |
|
280 |
(Some(tex_file), seen + (path.file -> tex_file)) |
|
281 |
} |
|
282 |
else (None, seen) |
|
283 |
case some => (some, seen) |
|
284 |
}) |
|
285 |
||
286 |
def tex_file_position(path: Path, line: Int): Position.T = |
|
287 |
check_tex_file(path) match { |
|
288 |
case Some(tex_file) => tex_file.position(line) |
|
289 |
case None => Position.Line_File(line, path.implode) |
|
290 |
} |
|
291 |
||
67172 | 292 |
object File_Line_Error |
293 |
{ |
|
71601 | 294 |
val Pattern: Regex = """^(.*?\.\w\w\w):(\d+): (.*)$""".r |
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def unapply(line: String): Option[(Path, Int, String)] = |
67172 | 296 |
line match { |
297 |
case Pattern(file, Value.Int(line), message) => |
|
298 |
val path = File.standard_path(file) |
|
299 |
if (Path.is_wellformed(path)) { |
|
67183 | 300 |
val file = (dir + Path.explode(path)).canonical |
67423 | 301 |
val msg = Library.perhaps_unprefix("LaTeX Error: ", message) |
302 |
if (file.is_file) Some((file, line, msg)) else None |
|
67172 | 303 |
} |
304 |
else None |
|
305 |
case _ => None |
|
306 |
} |
|
307 |
} |
|
308 |
||
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val Line_Error = """^l\.\d+ (.*)$""".r |
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val More_Error = |
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311 |
List( |
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312 |
"<argument>", |
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313 |
"<template>", |
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314 |
"<recently read>", |
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|
315 |
"<to be read again>", |
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316 |
"<inserted text>", |
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|
317 |
"<output>", |
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|
318 |
"<everypar>", |
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|
319 |
"<everymath>", |
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|
320 |
"<everydisplay>", |
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|
321 |
"<everyhbox>", |
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|
322 |
"<everyvbox>", |
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|
323 |
"<everyjob>", |
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|
324 |
"<everycr>", |
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|
325 |
"<mark>", |
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|
326 |
"<everyeof>", |
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|
327 |
"<write>").mkString("^(?:", "|", ") (.*)$").r |
67172 | 328 |
|
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|
329 |
val Bad_Font = """^LaTeX Font Warning: (Font .*\btxmia\b.* undefined).*$""".r |
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|
330 |
val Bad_File = """^! LaTeX Error: (File `.*' not found\.)$""".r |
67482 | 331 |
|
67423 | 332 |
val error_ignore = |
333 |
Set( |
|
334 |
"See the LaTeX manual or LaTeX Companion for explanation.", |
|
335 |
"Type H <return> for immediate help.") |
|
336 |
||
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|
337 |
def error_suffix1(lines: List[String]): Option[String] = |
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|
338 |
{ |
71784 | 339 |
val lines1 = |
340 |
lines.take(20).takeWhile({ case File_Line_Error((_, _, _)) => false case _ => true }) |
|
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|
341 |
lines1.zipWithIndex.collectFirst({ |
67423 | 342 |
case (Line_Error(msg), i) => |
343 |
cat_lines(lines1.take(i).filterNot(error_ignore) ::: List(msg)) }) |
|
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|
344 |
} |
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|
345 |
def error_suffix2(lines: List[String]): Option[String] = |
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|
346 |
lines match { |
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|
347 |
case More_Error(msg) :: _ => Some(msg) |
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348 |
case _ => None |
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|
349 |
} |
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|
350 |
|
67173 | 351 |
@tailrec def filter(lines: List[String], result: List[(String, Position.T)]) |
352 |
: List[(String, Position.T)] = |
|
353 |
{ |
|
67172 | 354 |
lines match { |
67173 | 355 |
case File_Line_Error((file, line, msg1)) :: rest1 => |
67183 | 356 |
val pos = tex_file_position(file, line) |
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|
357 |
val msg2 = error_suffix1(rest1) orElse error_suffix2(rest1) getOrElse "" |
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|
358 |
filter(rest1, (Exn.cat_message(msg1, msg2), pos) :: result) |
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|
359 |
case Bad_Font(msg) :: rest => |
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|
360 |
filter(rest, (msg, Position.none) :: result) |
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|
361 |
case Bad_File(msg) :: rest => |
67482 | 362 |
filter(rest, (msg, Position.none) :: result) |
67172 | 363 |
case _ :: rest => filter(rest, result) |
364 |
case Nil => result.reverse |
|
365 |
} |
|
67173 | 366 |
} |
67172 | 367 |
|
67174 | 368 |
filter(Line.logical_lines(root_log), Nil) |
67173 | 369 |
} |
67172 | 370 |
} |