author | wenzelm |
Fri, 21 Apr 2017 14:09:03 +0200 | |
changeset 65532 | febfd9f78bd4 |
parent 65524 | 0910f1733909 |
child 66195 | bb886f13623a |
permissions | -rw-r--r-- |
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/* Title: Tools/jEdit/src/jedit_resources.scala |
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Author: Makarius |
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Resources for theories and auxiliary files, based on jEdit buffer |
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content and virtual file-systems. |
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*/ |
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package isabelle.jedit |
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import isabelle._ |
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import java.io.{File => JFile, ByteArrayOutputStream} |
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import javax.swing.text.Segment |
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import scala.util.parsing.input.Reader |
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import org.gjt.sp.jedit.io.{VFS, FileVFS, VFSManager} |
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import org.gjt.sp.jedit.MiscUtilities |
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import org.gjt.sp.jedit.{jEdit, View, Buffer} |
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import org.gjt.sp.jedit.bufferio.BufferIORequest |
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class JEdit_Resources(session_base: Sessions.Base) extends Resources(session_base) |
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{ |
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/* document node name */ |
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def known_file(path: String): Option[Document.Node.Name] = |
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JEdit_Lib.check_file(path).flatMap(session_base.known.get_file(_)) |
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def node_name(path: String): Document.Node.Name = |
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known_file(path) getOrElse { |
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val vfs = VFSManager.getVFSForPath(path) |
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val node = if (vfs.isInstanceOf[FileVFS]) MiscUtilities.resolveSymlinks(path) else path |
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theory_name(Sessions.DRAFT, Thy_Header.theory_name(node)) match { |
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case (true, theory) => Document.Node.Name.loaded_theory(theory) |
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case (false, theory) => |
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val master_dir = if (theory == "") "" else vfs.getParentOfPath(path) |
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Document.Node.Name(node, master_dir, theory) |
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} |
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} |
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def node_name(buffer: Buffer): Document.Node.Name = |
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node_name(JEdit_Lib.buffer_name(buffer)) |
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def theory_node_name(buffer: Buffer): Option[Document.Node.Name] = |
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{ |
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val name = node_name(buffer) |
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if (name.is_theory) Some(name) else None |
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} |
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override def append(dir: String, source_path: Path): String = |
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{ |
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val path = source_path.expand |
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if (dir == "" || path.is_absolute) |
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MiscUtilities.resolveSymlinks(File.platform_path(path)) |
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else if (path.is_current) dir |
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else { |
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val vfs = VFSManager.getVFSForPath(dir) |
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if (vfs.isInstanceOf[FileVFS]) |
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MiscUtilities.resolveSymlinks( |
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vfs.constructPath(dir, File.platform_path(path))) |
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else vfs.constructPath(dir, File.standard_path(path)) |
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} |
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} |
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/* file content */ |
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def read_file_content(node_name: Document.Node.Name): Option[String] = |
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{ |
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val name = node_name.node |
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try { |
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val text = |
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if (Url.is_wellformed(name)) Url.read(Url(name)) |
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else File.read(new JFile(name)) |
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Some(Symbol.decode(Line.normalize(text))) |
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} |
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catch { case ERROR(_) => None } |
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} |
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def get_file_content(node_name: Document.Node.Name): Option[String] = |
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Document_Model.get(node_name) match { |
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case Some(model: Buffer_Model) => Some(JEdit_Lib.buffer_text(model.buffer)) |
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case Some(model: File_Model) => Some(model.content.text) |
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case None => read_file_content(node_name) |
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} |
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override def with_thy_reader[A](name: Document.Node.Name, f: Reader[Char] => A): A = |
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{ |
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GUI_Thread.now { |
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Document_Model.get(name) match { |
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case Some(model: Buffer_Model) => |
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JEdit_Lib.buffer_lock(model.buffer) { Some(f(JEdit_Lib.buffer_reader(model.buffer))) } |
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case Some(model: File_Model) => Some(f(Scan.char_reader(model.content.text))) |
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case None => None |
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} |
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} getOrElse { |
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if (Url.is_wellformed(name.node)) f(Scan.byte_reader(Url(name.node))) |
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else { |
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val file = new JFile(name.node) |
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if (file.isFile) f(Scan.byte_reader(file)) |
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else error("No such file: " + quote(file.toString)) |
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} |
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} |
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} |
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private class File_Content_Output(buffer: Buffer) extends |
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ByteArrayOutputStream(buffer.getLength + 1) |
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{ |
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def content(): Bytes = Bytes(this.buf, 0, this.count) |
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} |
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private class File_Content(buffer: Buffer) extends |
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BufferIORequest(null, buffer, null, VFSManager.getVFSForPath(buffer.getPath), buffer.getPath) |
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{ |
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def _run() { } |
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def content(): Bytes = |
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{ |
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val out = new File_Content_Output(buffer) |
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write(buffer, out) |
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out.content() |
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} |
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} |
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def make_file_content(buffer: Buffer): Bytes = (new File_Content(buffer)).content() |
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/* theory text edits */ |
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override def commit(change: Session.Change) |
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{ |
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if (change.syntax_changed.nonEmpty) |
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GUI_Thread.later { Document_Model.syntax_changed(change.syntax_changed) } |
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if (change.deps_changed || |
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PIDE.options.bool("jedit_auto_resolve") && undefined_blobs(change.version.nodes).nonEmpty) |
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PIDE.plugin.deps_changed() |
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} |
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} |