author | wenzelm |
Tue, 03 Jan 2017 14:17:03 +0100 | |
changeset 64759 | 100941134718 |
parent 64718 | 3197b68f4314 |
child 64797 | 891a25a87ea1 |
permissions | -rw-r--r-- |
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/* Title: Pure/PIDE/resources.scala |
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Author: Makarius |
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Resources for theories and auxiliary files. |
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*/ |
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package isabelle |
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import scala.annotation.tailrec |
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import scala.util.parsing.input.Reader |
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import java.io.{File => JFile} |
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object Resources |
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{ |
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def thy_path(path: Path): Path = path.ext("thy") |
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val empty: Resources = new Resources(Set.empty, Map.empty, Outer_Syntax.empty) |
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} |
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class Resources( |
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val loaded_theories: Set[String], |
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val known_theories: Map[String, Document.Node.Name], |
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val base_syntax: Outer_Syntax, |
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val log: Logger = No_Logger) |
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{ |
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/* document node names */ |
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def node_name(qualifier: String, raw_path: Path): Document.Node.Name = |
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{ |
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val no_qualifier = "" // FIXME |
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val path = raw_path.expand |
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val node = path.implode |
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val theory = Long_Name.qualify(no_qualifier, Thy_Header.thy_name(node).getOrElse("")) |
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val master_dir = if (theory == "") "" else path.dir.implode |
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Document.Node.Name(node, master_dir, theory) |
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} |
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/* file-system operations */ |
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def append(dir: String, source_path: Path): String = |
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(Path.explode(dir) + source_path).expand.implode |
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def append_file(dir: String, raw_name: String): String = |
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if (Path.is_valid(raw_name)) append(dir, Path.explode(raw_name)) |
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else raw_name |
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/* source files of Isabelle/ML bootstrap */ |
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def source_file(raw_name: String): Option[String] = |
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{ |
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if (Path.is_wellformed(raw_name)) { |
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if (Path.is_valid(raw_name)) { |
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def check(p: Path): Option[Path] = if (p.is_file) Some(p) else None |
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val path = Path.explode(raw_name) |
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val path1 = |
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if (path.is_absolute || path.is_current) check(path) |
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else { |
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check(Path.explode("~~/src/Pure") + path) orElse |
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(if (Isabelle_System.getenv("ML_SOURCES") == "") None |
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else check(Path.explode("$ML_SOURCES") + path)) |
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} |
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Some(File.platform_path(path1 getOrElse path)) |
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} |
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else None |
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} |
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else Some(raw_name) |
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} |
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/* theory files */ |
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def loaded_files(syntax: Outer_Syntax, text: String): List[String] = |
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if (syntax.load_commands_in(text)) { |
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val spans = syntax.parse_spans(text) |
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spans.iterator.map(Command.span_files(syntax, _)._1).flatten.toList |
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} |
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else Nil |
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private def dummy_name(theory: String): Document.Node.Name = |
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Document.Node.Name(theory + ".thy", "", theory) |
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def import_name(qualifier: String, master: Document.Node.Name, s: String): Document.Node.Name = |
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{ |
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val no_qualifier = "" // FIXME |
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val thy1 = Thy_Header.base_name(s) |
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val thy2 = if (Long_Name.is_qualified(thy1)) thy1 else Long_Name.qualify(no_qualifier, thy1) |
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(known_theories.get(thy1) orElse |
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known_theories.get(thy2) orElse |
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known_theories.get(Long_Name.base_name(thy1))) match { |
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case Some(name) if loaded_theories(name.theory) => dummy_name(name.theory) |
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case Some(name) => name |
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case None => |
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val path = Path.explode(s) |
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val theory = path.base.implode |
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if (Long_Name.is_qualified(theory)) dummy_name(theory) |
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else { |
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val node = append(master.master_dir, Resources.thy_path(path)) |
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val master_dir = append(master.master_dir, path.dir) |
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Document.Node.Name(node, master_dir, Long_Name.qualify(no_qualifier, theory)) |
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} |
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} |
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} |
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def with_thy_reader[A](name: Document.Node.Name, f: Reader[Char] => A): A = |
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{ |
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val path = Path.explode(name.node) |
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if (!path.is_file) error("No such file: " + path.toString) |
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val reader = Scan.byte_reader(path.file) |
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try { f(reader) } finally { reader.close } |
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} |
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def check_thy_reader(qualifier: String, node_name: Document.Node.Name, |
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reader: Reader[Char], start: Token.Pos): Document.Node.Header = |
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{ |
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if (reader.source.length > 0) { |
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try { |
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val header = Thy_Header.read(reader, start).decode_symbols |
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val base_name = Long_Name.base_name(node_name.theory) |
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val (name, pos) = header.name |
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if (base_name != name) |
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error("Bad theory name " + quote(name) + |
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" for file " + Resources.thy_path(Path.basic(base_name)) + Position.here(pos) + |
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Completion.report_names(pos, 1, List((base_name, ("theory", base_name))))) |
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val imports = |
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header.imports.map({ case (s, pos) => (import_name(qualifier, node_name, s), pos) }) |
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Document.Node.Header(imports, header.keywords, header.abbrevs) |
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} |
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catch { case exn: Throwable => Document.Node.bad_header(Exn.message(exn)) } |
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} |
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else Document.Node.no_header |
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} |
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def check_thy(qualifier: String, name: Document.Node.Name, start: Token.Pos) |
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: Document.Node.Header = |
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with_thy_reader(name, check_thy_reader(qualifier, name, _, start)) |
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def check_file(file: String): Boolean = |
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try { |
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if (Url.is_wellformed(file)) Url.is_readable(file) |
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else (new JFile(file)).isFile |
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} |
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catch { case ERROR(_) => false } |
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/* special header */ |
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def special_header(name: Document.Node.Name): Option[Document.Node.Header] = |
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if (Thy_Header.is_ml_root(name.theory)) |
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Some(Document.Node.Header(List((import_name("", name, Thy_Header.ML_BOOTSTRAP), Position.none)))) |
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else if (Thy_Header.is_bootstrap(name.theory)) |
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Some(Document.Node.Header(List((import_name("", name, Thy_Header.PURE), Position.none)))) |
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else None |
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/* document changes */ |
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def parse_change( |
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reparse_limit: Int, |
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previous: Document.Version, |
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doc_blobs: Document.Blobs, |
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edits: List[Document.Edit_Text]): Session.Change = |
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Thy_Syntax.parse_change(this, reparse_limit, previous, doc_blobs, edits) |
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def commit(change: Session.Change) { } |
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parents:
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} |