author | wenzelm |
Thu, 16 Apr 2015 15:00:03 +0200 | |
changeset 60095 | 35f626b11422 |
parent 59736 | 5c1a0069b9d3 |
child 60215 | 5fb4990dfc73 |
permissions | -rw-r--r-- |
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/* Title: Pure/Thy/thy_header.scala |
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Author: Makarius |
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Static theory header information. |
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*/ |
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package isabelle |
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import scala.annotation.tailrec |
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import scala.collection.mutable |
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import scala.util.parsing.input.{Reader, CharSequenceReader} |
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import scala.util.matching.Regex |
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object Thy_Header extends Parse.Parser |
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{ |
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/* bootstrap keywords */ |
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type Keywords = List[(String, Option[Keyword.Spec], Option[String])] |
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val HEADER = "header" |
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val CHAPTER = "chapter" |
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val SECTION = "section" |
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val SUBSECTION = "subsection" |
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val SUBSUBSECTION = "subsubsection" |
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val TEXT = "text" |
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val TXT = "txt" |
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val TEXT_RAW = "text_raw" |
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val THEORY = "theory" |
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val IMPORTS = "imports" |
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val KEYWORDS = "keywords" |
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val AND = "and" |
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val BEGIN = "begin" |
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private val bootstrap_header: Keywords = |
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List( |
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("%", None, None), |
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("(", None, None), |
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(")", None, None), |
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(",", None, None), |
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("::", None, None), |
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("==", None, None), |
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(AND, None, None), |
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(BEGIN, None, None), |
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(IMPORTS, None, None), |
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(KEYWORDS, None, None), |
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(HEADER, Some(((Keyword.DOCUMENT_HEADING, Nil), Nil)), None), |
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(CHAPTER, Some(((Keyword.DOCUMENT_HEADING, Nil), Nil)), None), |
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(SECTION, Some(((Keyword.DOCUMENT_HEADING, Nil), Nil)), None), |
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(SUBSECTION, Some(((Keyword.DOCUMENT_HEADING, Nil), Nil)), None), |
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(SUBSUBSECTION, Some(((Keyword.DOCUMENT_HEADING, Nil), Nil)), None), |
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(TEXT, Some(((Keyword.DOCUMENT_BODY, Nil), Nil)), None), |
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(TXT, Some(((Keyword.DOCUMENT_BODY, Nil), Nil)), None), |
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(TEXT_RAW, Some(((Keyword.DOCUMENT_RAW, Nil), Nil)), None), |
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(THEORY, Some((Keyword.THY_BEGIN, Nil), List("theory")), None), |
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("ML_file", Some((Keyword.THY_LOAD, Nil), List("ML")), None)) |
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private val bootstrap_keywords = |
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Keyword.Keywords.empty.add_keywords(bootstrap_header) |
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lazy val bootstrap_syntax: Outer_Syntax = |
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Outer_Syntax.init().add_keywords(bootstrap_header) |
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/* theory file name */ |
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private val Base_Name = new Regex(""".*?([^/\\:]+)""") |
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private val Thy_Name = new Regex(""".*?([^/\\:]+)\.thy""") |
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def base_name(s: String): String = |
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s match { case Base_Name(name) => name case _ => error("Malformed import: " + quote(s)) } |
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def thy_name(s: String): Option[String] = |
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s match { case Thy_Name(name) => Some(name) case _ => None } |
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/* header */ |
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val header: Parser[Thy_Header] = |
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{ |
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val opt_files = |
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$$$("(") ~! (rep1sep(name, $$$(",")) <~ $$$(")")) ^^ { case _ ~ x => x } | |
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success(Nil) |
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val keyword_spec = |
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atom("outer syntax keyword specification", _.is_name) ~ opt_files ~ tags ^^ |
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{ case x ~ y ~ z => ((x, y), z) } |
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val keyword_decl = |
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rep1(string) ~ |
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opt($$$("::") ~! keyword_spec ^^ { case _ ~ x => x }) ~ |
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opt($$$("==") ~! name ^^ { case _ ~ x => x }) ^^ |
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{ case xs ~ y ~ z => xs.map((_, y, z)) } |
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val keyword_decls = |
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keyword_decl ~ rep($$$(AND) ~! keyword_decl ^^ { case _ ~ x => x }) ^^ |
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{ case xs ~ yss => (xs :: yss).flatten } |
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val args = |
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position(theory_name) ~ |
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(opt($$$(IMPORTS) ~! (rep1(position(theory_xname)))) ^^ |
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{ case None => Nil case Some(_ ~ xs) => xs }) ~ |
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(opt($$$(KEYWORDS) ~! keyword_decls) ^^ |
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{ case None => Nil case Some(_ ~ xs) => xs }) ~ |
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$$$(BEGIN) ^^ |
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{ case x ~ ys ~ zs ~ _ => Thy_Header(x, ys, zs) } |
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val heading = |
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(command(HEADER) | |
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command(CHAPTER) | |
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command(SECTION) | |
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command(SUBSECTION) | |
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command(SUBSUBSECTION) | |
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command(TEXT) | |
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command(TXT) | |
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command(TEXT_RAW)) ~ |
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tags ~! document_source |
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(rep(heading) ~ command(THEORY) ~ tags) ~! args ^^ { case _ ~ x => x } |
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} |
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/* read -- lazy scanning */ |
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def read(reader: Reader[Char], start: Token.Pos): Thy_Header = |
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{ |
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val token = Token.Parsers.token(bootstrap_keywords) |
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val toks = new mutable.ListBuffer[Token] |
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@tailrec def scan_to_begin(in: Reader[Char]) |
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{ |
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token(in) match { |
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case Token.Parsers.Success(tok, rest) => |
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toks += tok |
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if (!tok.is_begin) scan_to_begin(rest) |
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case _ => |
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} |
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} |
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scan_to_begin(reader) |
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parse(commit(header), Token.reader(toks.toList, start)) match { |
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case Success(result, _) => result |
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case bad => error(bad.toString) |
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} |
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} |
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def read(source: CharSequence, start: Token.Pos): Thy_Header = |
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read(new CharSequenceReader(source), start) |
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} |
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sealed case class Thy_Header( |
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name: (String, Position.T), |
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imports: List[(String, Position.T)], |
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keywords: Thy_Header.Keywords) |
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{ |
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def decode_symbols: Thy_Header = |
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{ |
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val f = Symbol.decode _ |
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Thy_Header((f(name._1), name._2), imports.map({ case (a, b) => (f(a), b) }), |
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keywords.map({ case (a, b, c) => |
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(f(a), b.map({ case ((x, y), z) => ((f(x), y.map(f)), z.map(f)) }), c.map(f)) })) |
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} |
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} |