author | wenzelm |
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theory JEdit |
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imports Base |
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begin |
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chapter \<open>Introduction\<close> |
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section \<open>Concepts and terminology\<close> |
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text \<open> |
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Isabelle/jEdit is a Prover IDE that integrates \<^emph>\<open>parallel proof checking\<close> |
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@{cite "Wenzel:2009" and "Wenzel:2013:ITP"} with \<^emph>\<open>asynchronous user |
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interaction\<close> @{cite "Wenzel:2010" and "Wenzel:2012:UITP-EPTCS" and |
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"Wenzel:2014:ITP-PIDE" and "Wenzel:2014:UITP"}, based on a document-oriented |
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approach to \<^emph>\<open>continuous proof processing\<close> @{cite "Wenzel:2011:CICM" and |
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"Wenzel:2012" and "Wenzel:2018:FIDE" and "Wenzel:2019:MKM"}. Many concepts |
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and system components are fit together in order to make this work. The main |
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building blocks are as follows. |
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\<^descr>[Isabelle/ML] is the implementation and extension language of Isabelle, |
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see also @{cite "isabelle-implementation"}. It is integrated into the |
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logical context of Isabelle/Isar and allows to manipulate logical entities |
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directly. Arbitrary add-on tools may be implemented for object-logics such |
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as Isabelle/HOL. |
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\<^descr>[Isabelle/Scala] is the system programming language of Isabelle. It |
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extends the pure logical environment of Isabelle/ML towards the outer |
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world of graphical user interfaces, text editors, IDE frameworks, web |
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services, SSH servers, SQL databases etc. Special infrastructure allows to |
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transfer algebraic datatypes and formatted text easily between ML and |
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Scala, using asynchronous protocol commands. |
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\<^descr>[PIDE] is a general framework for Prover IDEs based on Isabelle/Scala. It |
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is built around a concept of parallel and asynchronous document |
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processing, which is supported natively by the parallel proof engine that |
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is implemented in Isabelle/ML. The traditional prover command loop is |
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given up; instead there is direct support for editing of source text, with |
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rich formal markup for GUI rendering. |
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\<^descr>[jEdit] is a sophisticated text editor\<^footnote>\<open>\<^url>\<open>http://www.jedit.org\<close>\<close> |
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implemented in Java\<^footnote>\<open>\<^url>\<open>https://adoptopenjdk.net\<close>\<close>. It is easily |
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extensible by plugins written in any language that works on the JVM. In |
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the context of Isabelle this is always |
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Scala\<^footnote>\<open>\<^url>\<open>https://www.scala-lang.org\<close>\<close>. |
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\<^descr>[Isabelle/jEdit] is the main application of the PIDE framework and the |
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default user-interface for Isabelle. It targets both beginners and |
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experts. Technically, Isabelle/jEdit consists of the original jEdit code |
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base with minimal patches and a special plugin for Isabelle. This is |
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integrated as a desktop application for the main operating system |
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families: Linux, Windows, macOS. |
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End-users of Isabelle download and run a standalone application that exposes |
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jEdit as a text editor on the surface. Thus there is occasionally a tendency |
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to apply the name ``jEdit'' to any of the Isabelle Prover IDE aspects, |
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without proper differentiation. When discussing these PIDE building blocks |
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in public forums, mailing lists, or even scientific publications, it is |
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particularly important to distinguish Isabelle/ML versus Standard ML, |
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Isabelle/Scala versus Scala, Isabelle/jEdit versus jEdit. |
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\<close> |
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section \<open>The Isabelle/jEdit Prover IDE\<close> |
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text \<open> |
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\begin{figure}[!htb] |
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\begin{center} |
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\includegraphics[width=\textwidth]{isabelle-jedit} |
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\end{center} |
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\caption{The Isabelle/jEdit Prover IDE} |
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\label{fig:isabelle-jedit} |
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\end{figure} |
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Isabelle/jEdit (\figref{fig:isabelle-jedit}) consists of some plugins for |
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the jEdit text editor, while preserving its overall look-and-feel. The main |
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plugin is called ``Isabelle'' and has its own menu \<^emph>\<open>Plugins~/ Isabelle\<close> |
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with access to several actions and add-on panels (see also |
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\secref{sec:dockables}), as well as \<^emph>\<open>Plugins~/ Plugin Options~/ Isabelle\<close> |
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(see also \secref{sec:options}). |
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The options allow to specify a logic session name, but the same selector is |
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also accessible in the \<^emph>\<open>Theories\<close> panel (\secref{sec:theories}). After |
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startup of the Isabelle plugin, the selected logic session image is provided |
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automatically by the Isabelle build tool @{cite "isabelle-system"}: if it is |
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absent or outdated wrt.\ its sources, the build process updates it within |
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the running text editor. Prover IDE functionality is fully activated after |
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successful termination of the build process. A failure may require changing |
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some options and restart of the Isabelle plugin or application. Changing the |
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logic session requires a restart of the whole application to take effect. |
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\<^medskip> The main job of the Prover IDE is to manage sources and their changes, |
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taking the logical structure as a formal document into account (see also |
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\secref{sec:document-model}). The editor and the prover are connected |
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asynchronously without locking. The prover is free to organize the checking |
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of the formal text in parallel on multiple cores, and provides feedback via |
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markup, which is rendered in the editor via colors, boxes, squiggly |
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underlines, hyperlinks, popup windows, icons, clickable output etc. |
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Using the mouse together with the modifier key \<^verbatim>\<open>CONTROL\<close> (Linux, Windows) |
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or \<^verbatim>\<open>COMMAND\<close> (macOS) exposes formal content via tooltips and/or |
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hyperlinks (see also \secref{sec:tooltips-hyperlinks}). Output (in popups |
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etc.) may be explored recursively, using the same techniques as in the |
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editor source buffer. |
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Thus the Prover IDE gives an impression of direct access to formal content |
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of the prover within the editor, but in reality only certain aspects are |
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exposed, according to the possibilities of the prover and its add-on tools. |
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\<close> |
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subsection \<open>Documentation\<close> |
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text \<open> |
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The \<^emph>\<open>Documentation\<close> panel of Isabelle/jEdit provides access to some example |
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theory files and the standard Isabelle documentation. PDF files are opened |
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by regular desktop operations of the underlying platform. The section |
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``Original jEdit Documentation'' contains the original \<^emph>\<open>User's Guide\<close> of |
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this sophisticated text editor. The same is accessible via the \<^verbatim>\<open>Help\<close> menu |
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or \<^verbatim>\<open>F1\<close> keyboard shortcut, using the built-in HTML viewer of Java/Swing. |
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The latter also includes \<^emph>\<open>Frequently Asked Questions\<close> and documentation of |
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individual plugins. |
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Most of the information about jEdit is relevant for Isabelle/jEdit as well, |
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but users need to keep in mind that defaults sometimes differ, and the |
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official jEdit documentation does not know about the Isabelle plugin with |
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its support for continuous checking of formal source text: jEdit is a plain |
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text editor, but Isabelle/jEdit is a Prover IDE. |
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\<close> |
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subsection \<open>Plugins\<close> |
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text \<open> |
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The \<^emph>\<open>Plugin Manager\<close> of jEdit allows to augment editor functionality by JVM |
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modules (jars) that are provided by the central plugin repository, which is |
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accessible via various mirror sites. |
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Connecting to the plugin server-infrastructure of the jEdit project allows |
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to update bundled plugins or to add further functionality. This needs to be |
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done with the usual care for such an open bazaar of contributions. Arbitrary |
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combinations of add-on features are apt to cause problems. It is advisable |
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to start with the default configuration of Isabelle/jEdit and develop a |
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sense how it is meant to work, before loading too many other plugins. |
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\<^medskip> |
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The \<^emph>\<open>Isabelle\<close> plugin is responsible for the main Prover IDE functionality |
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of Isabelle/jEdit: it manages the prover session in the background. A few |
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additional plugins are bundled with Isabelle/jEdit for convenience or out of |
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necessity, notably \<^emph>\<open>Console\<close> with its \<^emph>\<open>Scala\<close> sub-plugin |
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(\secref{sec:scala-console}) and \<^emph>\<open>SideKick\<close> with some Isabelle-specific |
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parsers for document tree structure (\secref{sec:sidekick}). The |
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\<^emph>\<open>Navigator\<close> plugin is particularly important for hyperlinks within the |
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formal document-model (\secref{sec:tooltips-hyperlinks}). Further plugins |
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(e.g.\ \<^emph>\<open>ErrorList\<close>, \<^emph>\<open>Code2HTML\<close>) are included to saturate the dependencies |
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of bundled plugins, but have no particular use in Isabelle/jEdit. |
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\<close> |
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subsection \<open>Options \label{sec:options}\<close> |
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text \<open> |
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Both jEdit and Isabelle have distinctive management of persistent options. |
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Regular jEdit options are accessible via the dialogs \<^emph>\<open>Utilities~/ Global |
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Options\<close> or \<^emph>\<open>Plugins~/ Plugin Options\<close>, with a second chance to flip the |
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two within the central options dialog. Changes are stored in |
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\<^path>\<open>$JEDIT_SETTINGS/properties\<close> and \<^path>\<open>$JEDIT_SETTINGS/keymaps\<close>. |
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Isabelle system options are managed by Isabelle/Scala and changes are stored |
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in \<^path>\<open>$ISABELLE_HOME_USER/etc/preferences\<close>, independently of |
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other jEdit properties. See also @{cite "isabelle-system"}, especially the |
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coverage of sessions and command-line tools like @{tool build} or @{tool |
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options}. |
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Those Isabelle options that are declared as \<^verbatim>\<open>public\<close> are configurable in |
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Isabelle/jEdit via \<^emph>\<open>Plugin Options~/ Isabelle~/ General\<close>. Moreover, there |
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are various options for rendering document content, which are configurable |
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via \<^emph>\<open>Plugin Options~/ Isabelle~/ Rendering\<close>. Thus \<^emph>\<open>Plugin Options~/ |
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Isabelle\<close> in jEdit provides a view on a subset of Isabelle system options. |
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Note that some of these options affect general parameters that are relevant |
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outside Isabelle/jEdit as well, e.g.\ @{system_option threads} or |
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@{system_option parallel_proofs} for the Isabelle build tool @{cite |
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"isabelle-system"}, but it is possible to use the settings variable |
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@{setting ISABELLE_BUILD_OPTIONS} to change defaults for batch builds |
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without affecting the Prover IDE. |
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The jEdit action @{action_def isabelle.options} opens the options dialog for |
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the Isabelle plugin; it can be mapped to editor GUI elements as usual. |
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\<^medskip> |
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Options are usually loaded on startup and saved on shutdown of |
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Isabelle/jEdit. Editing the generated \<^path>\<open>$JEDIT_SETTINGS/properties\<close> |
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or \<^path>\<open>$ISABELLE_HOME_USER/etc/preferences\<close> manually while the |
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application is running may cause lost updates! |
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\<close> |
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subsection \<open>Keymaps\<close> |
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text \<open> |
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Keyboard shortcuts are managed as a separate concept of \<^emph>\<open>keymap\<close> that is |
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configurable via \<^emph>\<open>Global Options~/ Shortcuts\<close>. The \<^verbatim>\<open>imported\<close> keymap is |
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derived from the initial environment of properties that is available at the |
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first start of the editor; afterwards the keymap file takes precedence and |
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is no longer affected by change of default properties. |
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Users may modify their keymap later, but this can lead to conflicts with |
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\<^verbatim>\<open>shortcut\<close> properties in \<^file>\<open>$JEDIT_HOME/src/jEdit.props\<close>. |
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The action @{action_def "isabelle.keymap-merge"} helps to resolve pending |
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Isabelle keymap changes wrt. the current jEdit keymap; non-conflicting |
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changes are applied implicitly. This action is automatically invoked on |
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Isabelle/jEdit startup. |
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\<close> |
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section \<open>Command-line invocation \label{sec:command-line}\<close> |
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text \<open> |
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Isabelle/jEdit is normally invoked as a single-instance desktop application, |
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based on platform-specific executables for Linux, Windows, macOS. |
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It is also possible to invoke the Prover IDE on the command-line, with some |
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extra options and environment settings. The command-line usage of @{tool_def |
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jedit} is as follows: |
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@{verbatim [display] |
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\<open>Usage: isabelle jedit [OPTIONS] [FILES ...] |
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Options are: |
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-A NAME ancestor session for option -R (default: parent) |
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-D NAME=X set JVM system property |
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-J OPTION add JVM runtime option |
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(default $JEDIT_JAVA_SYSTEM_OPTIONS $JEDIT_JAVA_OPTIONS) |
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-R NAME build image with requirements from other sessions |
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-b build only |
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-d DIR include session directory |
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-f fresh build |
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-i NAME include session in name-space of theories |
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-j OPTION add jEdit runtime option |
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(default $JEDIT_OPTIONS) |
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-l NAME logic image name |
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-m MODE add print mode for output |
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-n no build of session image on startup |
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-p CMD ML process command prefix (process policy) |
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-s system build mode for session image (system_heaps=true) |
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-u user build mode for session image (system_heaps=false) |
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Start jEdit with Isabelle plugin setup and open FILES |
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(default "$USER_HOME/Scratch.thy" or ":" for empty buffer).\<close>} |
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The \<^verbatim>\<open>-l\<close> option specifies the session name of the logic image to be used |
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for proof processing. Additional session root directories may be included |
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via option \<^verbatim>\<open>-d\<close> to augment the session name space (see also @{cite |
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"isabelle-system"}). By default, the specified image is checked and built on |
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demand, but option \<^verbatim>\<open>-n\<close> bypasses the implicit build process for the |
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selected session image. Options \<^verbatim>\<open>-s\<close> and \<^verbatim>\<open>-u\<close> override the default system |
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option @{system_option system_heaps}: this determines where to store the |
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session image of @{tool build}. |
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The \<^verbatim>\<open>-R\<close> option builds an auxiliary logic image with all theories from |
262 |
other sessions that are not already present in its parent; it also opens the |
|
263 |
session \<^verbatim>\<open>ROOT\<close> entry in the editor to facilitate editing of the main |
|
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session. The \<^verbatim>\<open>-A\<close> option specifies and alternative ancestor session for |
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option \<^verbatim>\<open>-R\<close>: this allows to restructure the hierarchy of session images on |
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the spot. |
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The \<^verbatim>\<open>-i\<close> option includes additional sessions into the name-space of |
269 |
theories: multiple occurrences are possible. |
|
270 |
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The \<^verbatim>\<open>-m\<close> option specifies additional print modes for the prover process. |
272 |
Note that the system option @{system_option_ref jedit_print_mode} allows to |
|
273 |
do the same persistently (e.g.\ via the \<^emph>\<open>Plugin Options\<close> dialog of |
|
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Isabelle/jEdit), without requiring command-line invocation. |
|
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The \<^verbatim>\<open>-J\<close> and \<^verbatim>\<open>-j\<close> options pass additional low-level options to the JVM or |
277 |
jEdit, respectively. The defaults are provided by the Isabelle settings |
|
278 |
environment @{cite "isabelle-system"}, but note that these only work for the |
|
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command-line tool described here, and not the desktop application. |
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The \<^verbatim>\<open>-D\<close> option allows to define JVM system properties; this is passed |
282 |
directly to the underlying \<^verbatim>\<open>java\<close> process. |
|
283 |
||
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The \<^verbatim>\<open>-b\<close> and \<^verbatim>\<open>-f\<close> options control the self-build mechanism of |
285 |
Isabelle/jEdit. This is only relevant for building from sources, which also |
|
63680 | 286 |
requires an auxiliary \<^verbatim>\<open>jedit_build\<close> component from |
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\<^url>\<open>https://isabelle.in.tum.de/components\<close>. The official Isabelle release |
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already includes a pre-built version of Isabelle/jEdit. |
289 |
||
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\<^bigskip> |
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It is also possible to connect to an already running Isabelle/jEdit process |
292 |
via @{tool_def jedit_client}: |
|
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@{verbatim [display] |
|
294 |
\<open>Usage: isabelle jedit_client [OPTIONS] [FILES ...] |
|
295 |
||
296 |
Options are: |
|
297 |
-c only check presence of server |
|
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-n only report server name |
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-s NAME server name (default "Isabelle") |
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|
301 |
Connect to already running Isabelle/jEdit instance and open FILES\<close>} |
|
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||
303 |
The \<^verbatim>\<open>-c\<close> option merely checks the presence of the server, producing a |
|
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process return-code. |
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|
306 |
The \<^verbatim>\<open>-n\<close> option reports the server name, and the \<^verbatim>\<open>-s\<close> option provides a |
|
307 |
different server name. The default server name is the official distribution |
|
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name (e.g.\ \<^verbatim>\<open>Isabelle2021\<close>). Thus @{tool jedit_client} can connect to the |
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Isabelle desktop application without further options. |
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|
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The \<^verbatim>\<open>-p\<close> option allows to override the implicit default of the system |
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option @{system_option_ref ML_process_policy} for ML processes started by |
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the Prover IDE, e.g. to control CPU affinity on multiprocessor systems. |
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|
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The JVM system property \<^verbatim>\<open>isabelle.jedit_server\<close> provides a different server |
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name, e.g.\ use \<^verbatim>\<open>isabelle jedit -Disabelle.jedit_server=\<close>\<open>name\<close> and |
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\<^verbatim>\<open>isabelle jedit_client -s\<close>~\<open>name\<close> to connect later on. |
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\<close> |
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|
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|
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section \<open>GUI rendering\<close> |
322 |
||
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text \<open> |
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Isabelle/jEdit is a classic Java/AWT/Swing application: its GUI rendering |
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usually works well, but there are technical side-conditions on the Java |
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window system and graphics engine. When researching problems and solutions |
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on the Web, it often helps to include other well-known Swing applications, |
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notably IntelliJ IDEA and Netbeans. |
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\<close> |
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|
330 |
|
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|
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|
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subsection \<open>Portable and scalable look-and-feel\<close> |
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|
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text \<open> |
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In the past, \<^emph>\<open>system look-and-feels\<close> tried hard to imitate native GUI |
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elements on specific platforms (Windows, macOS/Aqua, Linux/GTK+), but many |
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technical problems have accumulated in recent years (e.g.\ see |
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|
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\secref{sec:problems}). |
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|
339 |
|
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In 2021, we are de-facto back to \<^emph>\<open>portable look-and-feels\<close>, which also |
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happen to be \emph{scalable} on high-resolution displays: |
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|
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\<^item> \<^verbatim>\<open>FlatLaf Light\<close> is the default for Isabelle/jEdit on all platforms. It |
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generally looks good and adapts itself pretty well to high-resolution |
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|
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displays. |
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|
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|
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\<^item> \<^verbatim>\<open>FlatLaf Dark\<close> is an alternative, but it requires further changes of |
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editor colors by the user (or by the jEdit plugin \<^verbatim>\<open>Editor Scheme\<close>). Also |
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note that Isabelle/PIDE has its own extensive set of rendering options |
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|
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that need to be revisited. |
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|
351 |
|
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\<^item> \<^verbatim>\<open>Metal\<close> still works smoothly, although it is stylistically outdated. It |
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can accommodate high-resolution displays via font properties (see below). |
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354 |
|
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Changing the look-and-feel in \<^emph>\<open>Global Options~/ Appearance\<close> often updates |
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the GUI only partially: a full restart of Isabelle/jEdit is required to see |
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the true effect. |
60291 | 358 |
\<close> |
359 |
||
360 |
||
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subsection \<open>Adjusting fonts\<close> |
60291 | 362 |
|
363 |
text \<open> |
|
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The preferred font family for Isabelle/jEdit is \<^verbatim>\<open>Isabelle DejaVu\<close>: it is |
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used by default for the main text area and various GUI elements. The default |
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font sizes attempt to deliver a usable application for common display types, |
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such as ``Full HD'' at $1920 \times 1080$ and ``Ultra HD'' at $3840 \times |
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|
368 |
2160$. |
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|
369 |
|
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\<^medskip> Isabelle/jEdit provides various options to adjust font sizes in particular |
70252 | 371 |
GUI elements. Here is a summary of all relevant font properties: |
60291 | 372 |
|
61574 | 373 |
\<^item> \<^emph>\<open>Global Options / Text Area / Text font\<close>: the main text area font, |
374 |
which is also used as reference point for various derived font sizes, |
|
62185 | 375 |
e.g.\ the \<^emph>\<open>Output\<close> (\secref{sec:output}) and \<^emph>\<open>State\<close> |
62183 | 376 |
(\secref{sec:state-output}) panels. |
60291 | 377 |
|
61574 | 378 |
\<^item> \<^emph>\<open>Global Options / Gutter / Gutter font\<close>: the font for the gutter area |
379 |
left of the main text area, e.g.\ relevant for display of line numbers |
|
380 |
(disabled by default). |
|
60291 | 381 |
|
61574 | 382 |
\<^item> \<^emph>\<open>Global Options / Appearance / Button, menu and label font\<close> as well as |
383 |
\<^emph>\<open>List and text field font\<close>: this specifies the primary and secondary font |
|
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384 |
for the \<^emph>\<open>Metal\<close> look-and-feel. |
60291 | 385 |
|
61574 | 386 |
\<^item> \<^emph>\<open>Plugin Options / Isabelle / General / Reset Font Size\<close>: the main text |
387 |
area font size for action @{action_ref "isabelle.reset-font-size"}, e.g.\ |
|
62183 | 388 |
relevant for quick scaling like in common web browsers. |
60291 | 389 |
|
61574 | 390 |
\<^item> \<^emph>\<open>Plugin Options / Console / General / Font\<close>: the console window font, |
391 |
e.g.\ relevant for Isabelle/Scala command-line. |
|
60291 | 392 |
\<close> |
54321 | 393 |
|
394 |
||
62183 | 395 |
chapter \<open>Augmented jEdit functionality\<close> |
396 |
||
58618 | 397 |
section \<open>Dockable windows \label{sec:dockables}\<close> |
57316 | 398 |
|
58618 | 399 |
text \<open> |
61574 | 400 |
In jEdit terminology, a \<^emph>\<open>view\<close> is an editor window with one or more \<^emph>\<open>text |
401 |
areas\<close> that show the content of one or more \<^emph>\<open>buffers\<close>. A regular view may |
|
402 |
be surrounded by \<^emph>\<open>dockable windows\<close> that show additional information in |
|
403 |
arbitrary format, not just text; a \<^emph>\<open>plain view\<close> does not allow dockables. |
|
404 |
The \<^emph>\<open>dockable window manager\<close> of jEdit organizes these dockable windows, |
|
405 |
either as \<^emph>\<open>floating\<close> windows, or \<^emph>\<open>docked\<close> panels within one of the four |
|
406 |
margins of the view. There may be any number of floating instances of some |
|
407 |
dockable window, but at most one docked instance; jEdit actions that address |
|
408 |
\<^emph>\<open>the\<close> dockable window of a particular kind refer to the unique docked |
|
409 |
instance. |
|
57316 | 410 |
|
411 |
Dockables are used routinely in jEdit for important functionality like |
|
61574 | 412 |
\<^emph>\<open>HyperSearch Results\<close> or the \<^emph>\<open>File System Browser\<close>. Plugins often provide |
62184 | 413 |
a central dockable to access their main functionality, which may be opened |
414 |
by the user on demand. The Isabelle/jEdit plugin takes this approach to the |
|
61574 | 415 |
extreme: its plugin menu provides the entry-points to many panels that are |
416 |
managed as dockable windows. Some important panels are docked by default, |
|
62184 | 417 |
e.g.\ \<^emph>\<open>Documentation\<close>, \<^emph>\<open>State\<close>, \<^emph>\<open>Theories\<close> \<^emph>\<open>Output\<close>, \<^emph>\<open>Query\<close>. The user |
418 |
can change this arrangement easily and persistently. |
|
57316 | 419 |
|
420 |
Compared to plain jEdit, dockable window management in Isabelle/jEdit is |
|
421 |
slightly augmented according to the the following principles: |
|
422 |
||
61477 | 423 |
\<^item> Floating windows are dependent on the main window as \<^emph>\<open>dialog\<close> in |
57316 | 424 |
the sense of Java/AWT/Swing. Dialog windows always stay on top of the view, |
425 |
which is particularly important in full-screen mode. The desktop environment |
|
426 |
of the underlying platform may impose further policies on such dependent |
|
427 |
dialogs, in contrast to fully independent windows, e.g.\ some window |
|
428 |
management functions may be missing. |
|
429 |
||
61415 | 430 |
\<^item> Keyboard focus of the main view vs.\ a dockable window is carefully |
57316 | 431 |
managed according to the intended semantics, as a panel mainly for output or |
62184 | 432 |
input. For example, activating the \<^emph>\<open>Output\<close> (\secref{sec:output}) or State |
433 |
(\secref{sec:state-output}) panel via the dockable window manager returns |
|
434 |
keyboard focus to the main text area, but for \<^emph>\<open>Query\<close> (\secref{sec:query}) |
|
435 |
or \<^emph>\<open>Sledgehammer\<close> \secref{sec:sledgehammer} the focus is given to the main |
|
436 |
input field of that panel. |
|
57316 | 437 |
|
61415 | 438 |
\<^item> Panels that provide their own text area for output have an additional |
61477 | 439 |
dockable menu item \<^emph>\<open>Detach\<close>. This produces an independent copy of the |
440 |
current output as a floating \<^emph>\<open>Info\<close> window, which displays that content |
|
57316 | 441 |
independently of ongoing changes of the PIDE document-model. Note that |
442 |
Isabelle/jEdit popup windows (\secref{sec:tooltips-hyperlinks}) provide a |
|
61477 | 443 |
similar \<^emph>\<open>Detach\<close> operation as an icon. |
58618 | 444 |
\<close> |
57316 | 445 |
|
446 |
||
58618 | 447 |
section \<open>Isabelle symbols \label{sec:symbols}\<close> |
57319 | 448 |
|
58618 | 449 |
text \<open> |
61477 | 450 |
Isabelle sources consist of \<^emph>\<open>symbols\<close> that extend plain ASCII to allow |
57420 | 451 |
infinitely many mathematical symbols within the formal sources. This works |
452 |
without depending on particular encodings and varying Unicode |
|
70252 | 453 |
standards.\<^footnote>\<open>Raw Unicode characters within formal sources compromise |
61574 | 454 |
portability and reliability in the face of changing interpretation of |
455 |
special features of Unicode, such as Combining Characters or Bi-directional |
|
62184 | 456 |
Text.\<close> See @{cite "Wenzel:2011:CICM"}. |
57319 | 457 |
|
57420 | 458 |
For the prover back-end, formal text consists of ASCII characters that are |
61574 | 459 |
grouped according to some simple rules, e.g.\ as plain ``\<^verbatim>\<open>a\<close>'' or symbolic |
460 |
``\<^verbatim>\<open>\<alpha>\<close>''. For the editor front-end, a certain subset of symbols is rendered |
|
70252 | 461 |
physically via Unicode glyphs, to show ``\<^verbatim>\<open>\<alpha>\<close>'' as ``\<open>\<alpha>\<close>'', for example. |
462 |
This symbol interpretation is specified by the Isabelle system distribution |
|
463 |
in \<^file>\<open>$ISABELLE_HOME/etc/symbols\<close> and may be augmented by the user in |
|
464 |
\<^path>\<open>$ISABELLE_HOME_USER/etc/symbols\<close>. |
|
57319 | 465 |
|
58554 | 466 |
The appendix of @{cite "isabelle-isar-ref"} gives an overview of the |
57319 | 467 |
standard interpretation of finitely many symbols from the infinite |
58554 | 468 |
collection. Uninterpreted symbols are displayed literally, e.g.\ |
61503 | 469 |
``\<^verbatim>\<open>\<foobar>\<close>''. Overlap of Unicode characters used in symbol |
58554 | 470 |
interpretation with informal ones (which might appear e.g.\ in comments) |
471 |
needs to be avoided. Raw Unicode characters within prover source files |
|
472 |
should be restricted to informal parts, e.g.\ to write text in non-latin |
|
473 |
alphabets in comments. |
|
61506 | 474 |
\<close> |
57319 | 475 |
|
61506 | 476 |
paragraph \<open>Encoding.\<close> |
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477 |
|
62184 | 478 |
text \<open>Technically, the Unicode interpretation of Isabelle symbols is an |
479 |
\<^emph>\<open>encoding\<close> called \<^verbatim>\<open>UTF-8-Isabelle\<close> in jEdit (\<^emph>\<open>not\<close> in the underlying |
|
66462 | 480 |
JVM). It is provided by the Isabelle Base plugin and enabled by default for |
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all source files in Isabelle/jEdit. |
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482 |
|
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483 |
Sometimes such defaults are reset accidentally, or malformed UTF-8 sequences |
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more robust treatment of conflicts with existing Unicode text;
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|
484 |
in the text force jEdit to fall back on a different encoding like |
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more robust treatment of conflicts with existing Unicode text;
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|
485 |
\<^verbatim>\<open>ISO-8859-15\<close>. In that case, verbatim ``\<^verbatim>\<open>\<alpha>\<close>'' will be shown in the text |
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more robust treatment of conflicts with existing Unicode text;
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486 |
buffer instead of its Unicode rendering ``\<open>\<alpha>\<close>''. The jEdit menu operation |
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|
487 |
\<^emph>\<open>File~/ Reload with Encoding~/ UTF-8-Isabelle\<close> helps to resolve such |
3cf05d7cf174
more robust treatment of conflicts with existing Unicode text;
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|
488 |
problems (after repairing malformed parts of the text). |
3cf05d7cf174
more robust treatment of conflicts with existing Unicode text;
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changeset
|
489 |
|
3cf05d7cf174
more robust treatment of conflicts with existing Unicode text;
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|
490 |
If the loaded text already contains Unicode sequences that are in conflict |
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more robust treatment of conflicts with existing Unicode text;
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|
491 |
with the Isabelle symbol encoding, the fallback-encoding UTF-8 is used and |
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|
492 |
Isabelle symbols remain in literal \<^verbatim>\<open>\<symbol>\<close> form. The jEdit menu |
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|
493 |
operation \<^emph>\<open>Utilities~/ Buffer Options~/ Character encoding\<close> allows to |
70252 | 494 |
enforce \<^verbatim>\<open>UTF-8-Isabelle\<close>, but this will also change original Unicode text |
495 |
into Isabelle symbols when saving the file! |
|
67304
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496 |
\<close> |
57319 | 497 |
|
61506 | 498 |
paragraph \<open>Font.\<close> |
499 |
text \<open>Correct rendering via Unicode requires a font that contains glyphs for |
|
62184 | 500 |
the corresponding codepoints. There are also various unusual symbols with |
501 |
particular purpose in Isabelle, e.g.\ control symbols and very long arrows. |
|
70252 | 502 |
Isabelle/jEdit prefers its own font collection \<^verbatim>\<open>Isabelle DejaVu\<close>, with |
503 |
families \<^verbatim>\<open>Serif\<close> (default for help texts), \<^verbatim>\<open>Sans\<close> (default for GUI |
|
504 |
elements), \<^verbatim>\<open>Mono Sans\<close> (default for text area). This ensures that all |
|
505 |
standard Isabelle symbols are shown on the screen (or printer) as expected. |
|
57319 | 506 |
|
57420 | 507 |
Note that a Java/AWT/Swing application can load additional fonts only if |
69343
395c4fb15ea2
use "Isabelle DejaVu" fonts uniformly: Text Area, GUI elements, HTML output etc.;
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|
508 |
they are not installed on the operating system already! Outdated versions of |
395c4fb15ea2
use "Isabelle DejaVu" fonts uniformly: Text Area, GUI elements, HTML output etc.;
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changeset
|
509 |
Isabelle fonts that happen to be provided by the operating system prevent |
395c4fb15ea2
use "Isabelle DejaVu" fonts uniformly: Text Area, GUI elements, HTML output etc.;
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changeset
|
510 |
Isabelle/jEdit to use its bundled version. This could lead to missing glyphs |
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use "Isabelle DejaVu" fonts uniformly: Text Area, GUI elements, HTML output etc.;
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changeset
|
511 |
(black rectangles), when the system version of a font is older than the |
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use "Isabelle DejaVu" fonts uniformly: Text Area, GUI elements, HTML output etc.;
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changeset
|
512 |
application version. This problem can be avoided by refraining to |
70252 | 513 |
``install'' a copy of the Isabelle fonts in the first place, although it |
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use "Isabelle DejaVu" fonts uniformly: Text Area, GUI elements, HTML output etc.;
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changeset
|
514 |
might be tempting to use the same font in other applications. |
62184 | 515 |
|
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|
516 |
HTML pages generated by Isabelle refer to the same Isabelle fonts as a |
62184 | 517 |
server-side resource. Thus a web-browser can use that without requiring a |
518 |
locally installed copy. |
|
61506 | 519 |
\<close> |
57319 | 520 |
|
61506 | 521 |
paragraph \<open>Input methods.\<close> |
522 |
text \<open>In principle, Isabelle/jEdit could delegate the problem to produce |
|
523 |
Isabelle symbols in their Unicode rendering to the underlying operating |
|
524 |
system and its \<^emph>\<open>input methods\<close>. Regular jEdit also provides various ways to |
|
525 |
work with \<^emph>\<open>abbreviations\<close> to produce certain non-ASCII characters. Since |
|
526 |
none of these standard input methods work satisfactorily for the |
|
527 |
mathematical characters required for Isabelle, various specific |
|
528 |
Isabelle/jEdit mechanisms are provided. |
|
57319 | 529 |
|
57420 | 530 |
This is a summary for practically relevant input methods for Isabelle |
531 |
symbols. |
|
57319 | 532 |
|
61504 | 533 |
\<^enum> The \<^emph>\<open>Symbols\<close> panel: some GUI buttons allow to insert certain symbols in |
534 |
the text buffer. There are also tooltips to reveal the official Isabelle |
|
535 |
representation with some additional information about \<^emph>\<open>symbol |
|
536 |
abbreviations\<close> (see below). |
|
57319 | 537 |
|
70252 | 538 |
\<^enum> Copy/paste from decoded source files: text that is already rendered as |
539 |
Unicode can be re-used for other text. This also works between different |
|
540 |
applications, e.g.\ Isabelle/jEdit and some web browser or mail client, as |
|
541 |
long as the same Unicode interpretation of Isabelle symbols is used. |
|
57319 | 542 |
|
61504 | 543 |
\<^enum> Copy/paste from prover output within Isabelle/jEdit. The same principles |
544 |
as for text buffers apply, but note that \<^emph>\<open>copy\<close> in secondary Isabelle/jEdit |
|
545 |
windows works via the keyboard shortcuts \<^verbatim>\<open>C+c\<close> or \<^verbatim>\<open>C+INSERT\<close>, while jEdit |
|
546 |
menu actions always refer to the primary text area! |
|
57319 | 547 |
|
62184 | 548 |
\<^enum> Completion provided by the Isabelle plugin (see \secref{sec:completion}). |
61504 | 549 |
Isabelle symbols have a canonical name and optional abbreviations. This can |
550 |
be used with the text completion mechanism of Isabelle/jEdit, to replace a |
|
551 |
prefix of the actual symbol like \<^verbatim>\<open>\<lambda>\<close>, or its name preceded by backslash |
|
552 |
\<^verbatim>\<open>\lambda\<close>, or its ASCII abbreviation \<^verbatim>\<open>%\<close> by the Unicode rendering. |
|
57319 | 553 |
|
554 |
The following table is an extract of the information provided by the |
|
63680 | 555 |
standard \<^file>\<open>$ISABELLE_HOME/etc/symbols\<close> file: |
57319 | 556 |
|
61415 | 557 |
\<^medskip> |
57319 | 558 |
\begin{tabular}{lll} |
61477 | 559 |
\<^bold>\<open>symbol\<close> & \<^bold>\<open>name with backslash\<close> & \<^bold>\<open>abbreviation\<close> \\\hline |
61503 | 560 |
\<open>\<lambda>\<close> & \<^verbatim>\<open>\lambda\<close> & \<^verbatim>\<open>%\<close> \\ |
561 |
\<open>\<Rightarrow>\<close> & \<^verbatim>\<open>\Rightarrow\<close> & \<^verbatim>\<open>=>\<close> \\ |
|
562 |
\<open>\<Longrightarrow>\<close> & \<^verbatim>\<open>\Longrightarrow\<close> & \<^verbatim>\<open>==>\<close> \\[0.5ex] |
|
563 |
\<open>\<And>\<close> & \<^verbatim>\<open>\And\<close> & \<^verbatim>\<open>!!\<close> \\ |
|
564 |
\<open>\<equiv>\<close> & \<^verbatim>\<open>\equiv\<close> & \<^verbatim>\<open>==\<close> \\[0.5ex] |
|
565 |
\<open>\<forall>\<close> & \<^verbatim>\<open>\forall\<close> & \<^verbatim>\<open>!\<close> \\ |
|
566 |
\<open>\<exists>\<close> & \<^verbatim>\<open>\exists\<close> & \<^verbatim>\<open>?\<close> \\ |
|
567 |
\<open>\<longrightarrow>\<close> & \<^verbatim>\<open>\longrightarrow\<close> & \<^verbatim>\<open>-->\<close> \\ |
|
568 |
\<open>\<and>\<close> & \<^verbatim>\<open>\and\<close> & \<^verbatim>\<open>&\<close> \\ |
|
569 |
\<open>\<or>\<close> & \<^verbatim>\<open>\or\<close> & \<^verbatim>\<open>|\<close> \\ |
|
570 |
\<open>\<not>\<close> & \<^verbatim>\<open>\not\<close> & \<^verbatim>\<open>~\<close> \\ |
|
571 |
\<open>\<noteq>\<close> & \<^verbatim>\<open>\noteq\<close> & \<^verbatim>\<open>~=\<close> \\ |
|
572 |
\<open>\<in>\<close> & \<^verbatim>\<open>\in\<close> & \<^verbatim>\<open>:\<close> \\ |
|
573 |
\<open>\<notin>\<close> & \<^verbatim>\<open>\notin\<close> & \<^verbatim>\<open>~:\<close> \\ |
|
57319 | 574 |
\end{tabular} |
61415 | 575 |
\<^medskip> |
61574 | 576 |
|
57420 | 577 |
Note that the above abbreviations refer to the input method. The logical |
578 |
notation provides ASCII alternatives that often coincide, but sometimes |
|
62184 | 579 |
deviate. This occasionally causes user confusion with old-fashioned Isabelle |
580 |
source that use ASCII replacement notation like \<^verbatim>\<open>!\<close> or \<^verbatim>\<open>ALL\<close> directly in |
|
581 |
the text. |
|
57319 | 582 |
|
583 |
On the other hand, coincidence of symbol abbreviations with ASCII |
|
61574 | 584 |
replacement syntax syntax helps to update old theory sources via explicit |
585 |
completion (see also \<^verbatim>\<open>C+b\<close> explained in \secref{sec:completion}). |
|
61506 | 586 |
\<close> |
57319 | 587 |
|
61506 | 588 |
paragraph \<open>Control symbols.\<close> |
589 |
text \<open>There are some special control symbols to modify the display style of a |
|
590 |
single symbol (without nesting). Control symbols may be applied to a region |
|
591 |
of selected text, either using the \<^emph>\<open>Symbols\<close> panel or keyboard shortcuts or |
|
592 |
jEdit actions. These editor operations produce a separate control symbol for |
|
593 |
each symbol in the text, in order to make the whole text appear in a certain |
|
594 |
style. |
|
57319 | 595 |
|
61415 | 596 |
\<^medskip> |
57319 | 597 |
\begin{tabular}{llll} |
61477 | 598 |
\<^bold>\<open>style\<close> & \<^bold>\<open>symbol\<close> & \<^bold>\<open>shortcut\<close> & \<^bold>\<open>action\<close> \\\hline |
61503 | 599 |
superscript & \<^verbatim>\<open>\<^sup>\<close> & \<^verbatim>\<open>C+e UP\<close> & @{action_ref "isabelle.control-sup"} \\ |
600 |
subscript & \<^verbatim>\<open>\<^sub>\<close> & \<^verbatim>\<open>C+e DOWN\<close> & @{action_ref "isabelle.control-sub"} \\ |
|
601 |
bold face & \<^verbatim>\<open>\<^bold>\<close> & \<^verbatim>\<open>C+e RIGHT\<close> & @{action_ref "isabelle.control-bold"} \\ |
|
602 |
emphasized & \<^verbatim>\<open>\<^emph>\<close> & \<^verbatim>\<open>C+e LEFT\<close> & @{action_ref "isabelle.control-emph"} \\ |
|
603 |
reset & & \<^verbatim>\<open>C+e BACK_SPACE\<close> & @{action_ref "isabelle.control-reset"} \\ |
|
57319 | 604 |
\end{tabular} |
61415 | 605 |
\<^medskip> |
61483 | 606 |
|
607 |
To produce a single control symbol, it is also possible to complete on |
|
61504 | 608 |
\<^verbatim>\<open>\sup\<close>, \<^verbatim>\<open>\sub\<close>, \<^verbatim>\<open>\bold\<close>, \<^verbatim>\<open>\emph\<close> as for regular symbols. |
61483 | 609 |
|
62184 | 610 |
The emphasized style only takes effect in document output (when used with a |
611 |
cartouche), but not in the editor. |
|
58618 | 612 |
\<close> |
57319 | 613 |
|
614 |
||
58618 | 615 |
section \<open>Scala console \label{sec:scala-console}\<close> |
57319 | 616 |
|
58618 | 617 |
text \<open> |
61574 | 618 |
The \<^emph>\<open>Console\<close> plugin manages various shells (command interpreters), e.g.\ |
619 |
\<^emph>\<open>BeanShell\<close>, which is the official jEdit scripting language, and the |
|
620 |
cross-platform \<^emph>\<open>System\<close> shell. Thus the console provides similar |
|
621 |
functionality than the Emacs buffers \<^verbatim>\<open>*scratch*\<close> and \<^verbatim>\<open>*shell*\<close>. |
|
57319 | 622 |
|
61574 | 623 |
Isabelle/jEdit extends the repertoire of the console by \<^emph>\<open>Scala\<close>, which is |
624 |
the regular Scala toplevel loop running inside the same JVM process as |
|
57420 | 625 |
Isabelle/jEdit itself. This means the Scala command interpreter has access |
57603 | 626 |
to the JVM name space and state of the running Prover IDE application. The |
61503 | 627 |
default environment imports the full content of packages \<^verbatim>\<open>isabelle\<close> and |
628 |
\<^verbatim>\<open>isabelle.jedit\<close>. |
|
57603 | 629 |
|
61574 | 630 |
For example, \<^verbatim>\<open>PIDE\<close> refers to the Isabelle/jEdit plugin object, and \<^verbatim>\<open>view\<close> |
631 |
to the current editor view of jEdit. The Scala expression |
|
632 |
\<^verbatim>\<open>PIDE.snapshot(view)\<close> makes a PIDE document snapshot of the current buffer |
|
70252 | 633 |
within the current editor view: it allows to retrieve document markup in a |
634 |
timeless~/ stateless manner, while the prover continues its processing. |
|
57319 | 635 |
|
636 |
This helps to explore Isabelle/Scala functionality interactively. Some care |
|
637 |
is required to avoid interference with the internals of the running |
|
62184 | 638 |
application. |
58618 | 639 |
\<close> |
57319 | 640 |
|
641 |
||
70254 | 642 |
section \<open>Physical and logical files \label{sec:files}\<close> |
57318 | 643 |
|
58618 | 644 |
text \<open> |
57420 | 645 |
File specifications in jEdit follow various formats and conventions |
70254 | 646 |
according to \<^emph>\<open>Virtual File Systems\<close>, which may be also provided by plugins. |
647 |
This allows to access remote files via the \<^verbatim>\<open>https:\<close> protocol prefix, for |
|
648 |
example. Isabelle/jEdit attempts to work with the file-system model of jEdit |
|
649 |
as far as possible. In particular, theory sources are passed from the editor |
|
650 |
to the prover, without indirection via the file-system. Thus files don't |
|
651 |
need to be saved: the editor buffer content is used directly. |
|
652 |
\<close> |
|
653 |
||
654 |
||
655 |
subsection \<open>Local files and environment variables \label{sec:local-files}\<close> |
|
656 |
||
657 |
text \<open> |
|
658 |
Local files (without URL notation) are particularly important. The file path |
|
659 |
notation is that of the Java Virtual Machine on the underlying platform. On |
|
660 |
Windows the preferred form uses backslashes, but happens to accept forward |
|
661 |
slashes like Unix/POSIX as well. Further differences arise due to Windows |
|
662 |
drive letters and network shares: thus relative paths (with forward slashes) |
|
663 |
are portable, but absolute paths are not. |
|
664 |
||
665 |
File paths in Java are distinct from Isabelle; the latter uses POSIX |
|
666 |
notation with forward slashes on \<^emph>\<open>all\<close> platforms. Isabelle/ML on Windows |
|
667 |
uses Unix-style path notation, with drive letters according to Cygwin (e.g.\ |
|
668 |
\<^verbatim>\<open>/cygdrive/c\<close>). Environment variables from the Isabelle process may be used |
|
669 |
freely, e.g.\ \<^file>\<open>$ISABELLE_HOME/etc/symbols\<close> or \<^file>\<open>$POLYML_HOME/README\<close>. |
|
670 |
There are special shortcuts: \<^dir>\<open>~\<close> for \<^dir>\<open>$USER_HOME\<close> and \<^dir>\<open>~~\<close> for |
|
671 |
\<^dir>\<open>$ISABELLE_HOME\<close>. |
|
57318 | 672 |
|
70252 | 673 |
\<^medskip> Since jEdit happens to support environment variables within file |
57420 | 674 |
specifications as well, it is natural to use similar notation within the |
675 |
editor, e.g.\ in the file-browser. This does not work in full generality, |
|
676 |
though, due to the bias of jEdit towards platform-specific notation and of |
|
677 |
Isabelle towards POSIX. Moreover, the Isabelle settings environment is not |
|
70252 | 678 |
accessible when starting Isabelle/jEdit via the desktop application wrapper, |
679 |
in contrast to @{tool jedit} run from the command line |
|
60257 | 680 |
(\secref{sec:command-line}). |
57318 | 681 |
|
63749 | 682 |
Isabelle/jEdit imitates important system settings within the Java process |
683 |
environment, in order to allow easy access to these important places from |
|
684 |
the editor: \<^verbatim>\<open>$ISABELLE_HOME\<close>, \<^verbatim>\<open>$ISABELLE_HOME_USER\<close>, \<^verbatim>\<open>$JEDIT_HOME\<close>, |
|
685 |
\<^verbatim>\<open>$JEDIT_SETTINGS\<close>. The file browser of jEdit also includes \<^emph>\<open>Favorites\<close> for |
|
70254 | 686 |
these locations. |
57318 | 687 |
|
70252 | 688 |
\<^medskip> Path specifications in prover input or output usually include formal |
689 |
markup that turns it into a hyperlink (see also |
|
690 |
\secref{sec:tooltips-hyperlinks}). This allows to open the corresponding |
|
691 |
file in the text editor, independently of the path notation. If the path |
|
692 |
refers to a directory, it is opened in the jEdit file browser. |
|
57318 | 693 |
|
694 |
Formally checked paths in prover input are subject to completion |
|
61574 | 695 |
(\secref{sec:completion}): partial specifications are resolved via directory |
696 |
content and possible completions are offered in a popup. |
|
58618 | 697 |
\<close> |
57318 | 698 |
|
699 |
||
70254 | 700 |
subsection \<open>PIDE resources via virtual file-systems\<close> |
701 |
||
702 |
text \<open> |
|
73151
f78a3be79ad1
updated documentation: HIDPI works smoothly thanks to FlatLaf;
wenzelm
parents:
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changeset
|
703 |
The jEdit file browser is docked by default. It provides immediate access to |
f78a3be79ad1
updated documentation: HIDPI works smoothly thanks to FlatLaf;
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parents:
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diff
changeset
|
704 |
the local file-system, as well as important Isabelle resources via the |
f78a3be79ad1
updated documentation: HIDPI works smoothly thanks to FlatLaf;
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parents:
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diff
changeset
|
705 |
\<^emph>\<open>Favorites\<close> menu. Environment variables like \<^verbatim>\<open>$ISABELLE_HOME\<close> are |
70254 | 706 |
discussed in \secref{sec:local-files}. Virtual file-systems are more |
707 |
special: the idea is to present structured information like a directory |
|
708 |
tree. The following URLs are offered in the \<^emph>\<open>Favorites\<close> menu, or by |
|
709 |
corresponding jEdit actions. |
|
710 |
||
711 |
\<^item> URL \<^verbatim>\<open>isabelle-export:\<close> or action @{action_def |
|
712 |
"isabelle-export-browser"} shows a toplevel directory with theory names: |
|
713 |
each may provide its own tree structure of session exports. Exports are |
|
714 |
like a logical file-system for the current prover session, maintained as |
|
715 |
Isabelle/Scala data structures and written to the session database |
|
716 |
eventually. The \<^verbatim>\<open>isabelle-export:\<close> URL exposes the current content |
|
717 |
according to a snapshot of the document model. The file browser is \<^emph>\<open>not\<close> |
|
718 |
updated continuously when the PIDE document changes: the reload operation |
|
719 |
needs to be used explicitly. A notable example for exports is the command |
|
720 |
@{command_ref export_code} @{cite "isabelle-isar-ref"}. |
|
721 |
||
722 |
\<^item> URL \<^verbatim>\<open>isabelle-session:\<close> or action @{action_def |
|
723 |
"isabelle-session-browser"} show the structure of session chapters and |
|
724 |
sessions within them. What looks like a file-entry is actually a reference |
|
725 |
to the session definition in its corresponding \<^verbatim>\<open>ROOT\<close> file. The latter is |
|
726 |
subject to Prover IDE markup, so the session theories and other files may |
|
727 |
be browsed quickly by following hyperlinks in the text. |
|
728 |
\<close> |
|
729 |
||
730 |
||
64515 | 731 |
section \<open>Indentation\<close> |
732 |
||
733 |
text \<open> |
|
734 |
Isabelle/jEdit augments the existing indentation facilities of jEdit to take |
|
735 |
the structure of theory and proof texts into account. There is also special |
|
70252 | 736 |
support for unstructured proof scripts (\<^theory_text>\<open>apply\<close> etc.). |
64515 | 737 |
|
738 |
\<^descr>[Syntactic indentation] follows the outer syntax of Isabelle/Isar. |
|
739 |
||
740 |
Action @{action "indent-lines"} (shortcut \<^verbatim>\<open>C+i\<close>) indents the current line |
|
741 |
according to command keywords and some command substructure: this |
|
742 |
approximation may need further manual tuning. |
|
743 |
||
744 |
Action @{action "isabelle.newline"} (shortcut \<^verbatim>\<open>ENTER\<close>) indents the old |
|
70252 | 745 |
and the new line according to command keywords only: leading to precise |
64515 | 746 |
alignment of the main Isar language elements. This depends on option |
747 |
@{system_option_def "jedit_indent_newline"} (enabled by default). |
|
748 |
||
66681 | 749 |
Regular input (via keyboard or completion) indents the current line |
66683 | 750 |
whenever an new keyword is emerging at the start of the line. This depends |
751 |
on option @{system_option_def "jedit_indent_input"} (enabled by default). |
|
66681 | 752 |
|
64515 | 753 |
\<^descr>[Semantic indentation] adds additional white space to unstructured proof |
70252 | 754 |
scripts via the number of subgoals. This requires information of ongoing |
755 |
document processing and may thus lag behind when the user is editing too |
|
756 |
quickly; see also option @{system_option_def "jedit_script_indent"} and |
|
757 |
@{system_option_def "jedit_script_indent_limit"}. |
|
64515 | 758 |
|
759 |
The above options are accessible in the menu \<^emph>\<open>Plugins / Plugin Options / |
|
66681 | 760 |
Isabelle / General\<close>. A prerequisite for advanced indentation is \<^emph>\<open>Utilities |
761 |
/ Buffer Options / Automatic indentation\<close>: it needs to be set to \<^verbatim>\<open>full\<close> |
|
762 |
(default). |
|
64515 | 763 |
\<close> |
764 |
||
765 |
||
62184 | 766 |
section \<open>SideKick parsers \label{sec:sidekick}\<close> |
767 |
||
768 |
text \<open> |
|
769 |
The \<^emph>\<open>SideKick\<close> plugin provides some general services to display buffer |
|
770 |
structure in a tree view. Isabelle/jEdit provides SideKick parsers for its |
|
64513 | 771 |
main mode for theory files, ML files, as well as some minor modes for the |
772 |
\<^verbatim>\<open>NEWS\<close> file (see \figref{fig:sidekick}), session \<^verbatim>\<open>ROOT\<close> files, system |
|
773 |
\<^verbatim>\<open>options\<close>, and Bib{\TeX} files (\secref{sec:bibtex}). |
|
62184 | 774 |
|
775 |
\begin{figure}[!htb] |
|
776 |
\begin{center} |
|
777 |
\includegraphics[scale=0.333]{sidekick} |
|
778 |
\end{center} |
|
779 |
\caption{The Isabelle NEWS file with SideKick tree view} |
|
780 |
\label{fig:sidekick} |
|
781 |
\end{figure} |
|
782 |
||
64513 | 783 |
The default SideKick parser for theory files is \<^verbatim>\<open>isabelle\<close>: it provides a |
784 |
tree-view on the formal document structure, with section headings at the top |
|
785 |
and formal specification elements at the bottom. The alternative parser |
|
786 |
\<^verbatim>\<open>isabelle-context\<close> shows nesting of context blocks according to \<^theory_text>\<open>begin \<dots> |
|
787 |
end\<close> structure. |
|
788 |
||
789 |
\<^medskip> |
|
790 |
Isabelle/ML files are structured according to semi-formal comments that are |
|
791 |
explained in @{cite "isabelle-implementation"}. This outline is turned into |
|
792 |
a tree-view by default, by using the \<^verbatim>\<open>isabelle-ml\<close> parser. There is also a |
|
793 |
folding mode of the same name, for hierarchic text folds within ML files. |
|
794 |
||
795 |
\<^medskip> |
|
62184 | 796 |
The special SideKick parser \<^verbatim>\<open>isabelle-markup\<close> exposes the uninterpreted |
797 |
markup tree of the PIDE document model of the current buffer. This is |
|
798 |
occasionally useful for informative purposes, but the amount of displayed |
|
799 |
information might cause problems for large buffers. |
|
800 |
\<close> |
|
801 |
||
802 |
||
58618 | 803 |
chapter \<open>Prover IDE functionality \label{sec:document-model}\<close> |
57315 | 804 |
|
58618 | 805 |
section \<open>Document model \label{sec:document-model}\<close> |
57322 | 806 |
|
58618 | 807 |
text \<open> |
57322 | 808 |
The document model is central to the PIDE architecture: the editor and the |
809 |
prover have a common notion of structured source text with markup, which is |
|
810 |
produced by formal processing. The editor is responsible for edits of |
|
811 |
document source, as produced by the user. The prover is responsible for |
|
812 |
reports of document markup, as produced by its processing in the background. |
|
813 |
||
814 |
Isabelle/jEdit handles classic editor events of jEdit, in order to connect |
|
815 |
the physical world of the GUI (with its singleton state) to the mathematical |
|
816 |
world of multiple document versions (with timeless and stateless updates). |
|
58618 | 817 |
\<close> |
57322 | 818 |
|
54322 | 819 |
|
58618 | 820 |
subsection \<open>Editor buffers and document nodes \label{sec:buffer-node}\<close> |
57322 | 821 |
|
58618 | 822 |
text \<open> |
61477 | 823 |
As a regular text editor, jEdit maintains a collection of \<^emph>\<open>buffers\<close> to |
57322 | 824 |
store text files; each buffer may be associated with any number of visible |
61574 | 825 |
\<^emph>\<open>text areas\<close>. Buffers are subject to an \<^emph>\<open>edit mode\<close> that is determined |
826 |
from the file name extension. The following modes are treated specifically |
|
827 |
in Isabelle/jEdit: |
|
57322 | 828 |
|
61415 | 829 |
\<^medskip> |
57322 | 830 |
\begin{tabular}{lll} |
62185 | 831 |
\<^bold>\<open>mode\<close> & \<^bold>\<open>file name\<close> & \<^bold>\<open>content\<close> \\\hline |
832 |
\<^verbatim>\<open>isabelle\<close> & \<^verbatim>\<open>*.thy\<close> & theory source \\ |
|
833 |
\<^verbatim>\<open>isabelle-ml\<close> & \<^verbatim>\<open>*.ML\<close> & Isabelle/ML source \\ |
|
834 |
\<^verbatim>\<open>sml\<close> & \<^verbatim>\<open>*.sml\<close> or \<^verbatim>\<open>*.sig\<close> & Standard ML source \\ |
|
835 |
\<^verbatim>\<open>isabelle-root\<close> & \<^verbatim>\<open>ROOT\<close> & session root \\ |
|
836 |
\<^verbatim>\<open>isabelle-options\<close> & & Isabelle options \\ |
|
837 |
\<^verbatim>\<open>isabelle-news\<close> & & Isabelle NEWS \\ |
|
57322 | 838 |
\end{tabular} |
61415 | 839 |
\<^medskip> |
54321 | 840 |
|
57322 | 841 |
All jEdit buffers are automatically added to the PIDE document-model as |
61574 | 842 |
\<^emph>\<open>document nodes\<close>. The overall document structure is defined by the theory |
843 |
nodes in two dimensions: |
|
57322 | 844 |
|
61574 | 845 |
\<^enum> via \<^bold>\<open>theory imports\<close> that are specified in the \<^emph>\<open>theory header\<close> using |
846 |
concrete syntax of the @{command_ref theory} command @{cite |
|
847 |
"isabelle-isar-ref"}; |
|
57322 | 848 |
|
66683 | 849 |
\<^enum> via \<^bold>\<open>auxiliary files\<close> that are included into a theory by \<^emph>\<open>load |
61574 | 850 |
commands\<close>, notably @{command_ref ML_file} and @{command_ref SML_file} |
851 |
@{cite "isabelle-isar-ref"}. |
|
54322 | 852 |
|
57322 | 853 |
In any case, source files are managed by the PIDE infrastructure: the |
854 |
physical file-system only plays a subordinate role. The relevant version of |
|
60257 | 855 |
source text is passed directly from the editor to the prover, using internal |
57322 | 856 |
communication channels. |
58618 | 857 |
\<close> |
57322 | 858 |
|
859 |
||
58618 | 860 |
subsection \<open>Theories \label{sec:theories}\<close> |
57322 | 861 |
|
58618 | 862 |
text \<open> |
61574 | 863 |
The \<^emph>\<open>Theories\<close> panel (see also \figref{fig:theories}) provides an overview |
864 |
of the status of continuous checking of theory nodes within the document |
|
66683 | 865 |
model. |
57322 | 866 |
|
62183 | 867 |
\begin{figure}[!htb] |
57339 | 868 |
\begin{center} |
869 |
\includegraphics[scale=0.333]{theories} |
|
870 |
\end{center} |
|
62185 | 871 |
\caption{Theories panel with an overview of the document-model, and jEdit |
872 |
text areas as editable views on some of the document nodes} |
|
57339 | 873 |
\label{fig:theories} |
874 |
\end{figure} |
|
875 |
||
64842 | 876 |
Theory imports are resolved automatically by the PIDE document model: all |
877 |
required files are loaded and stored internally, without the need to open |
|
878 |
corresponding jEdit buffers. Opening or closing editor buffers later on has |
|
66683 | 879 |
no direct impact on the formal document content: it only affects visibility. |
64842 | 880 |
|
66683 | 881 |
In contrast, auxiliary files (e.g.\ from @{command ML_file} commands) are |
882 |
\<^emph>\<open>not\<close> resolved within the editor by default, but the prover process takes |
|
883 |
care of that. This may be changed by enabling the system option |
|
884 |
@{system_option jedit_auto_resolve}: it ensures that all files are uniformly |
|
885 |
provided by the editor. |
|
54321 | 886 |
|
61415 | 887 |
\<^medskip> |
61574 | 888 |
The visible \<^emph>\<open>perspective\<close> of Isabelle/jEdit is defined by the collective |
889 |
view on theory buffers via open text areas. The perspective is taken as a |
|
890 |
hint for document processing: the prover ensures that those parts of a |
|
891 |
theory where the user is looking are checked, while other parts that are |
|
892 |
presently not required are ignored. The perspective is changed by opening or |
|
893 |
closing text area windows, or scrolling within a window. |
|
54322 | 894 |
|
61574 | 895 |
The \<^emph>\<open>Theories\<close> panel provides some further options to influence the process |
896 |
of continuous checking: it may be switched off globally to restrict the |
|
897 |
prover to superficial processing of command syntax. It is also possible to |
|
898 |
indicate theory nodes as \<^emph>\<open>required\<close> for continuous checking: this means |
|
899 |
such nodes and all their imports are always processed independently of the |
|
900 |
visibility status (if continuous checking is enabled). Big theory libraries |
|
62185 | 901 |
that are marked as required can have significant impact on performance! |
54322 | 902 |
|
66683 | 903 |
The \<^emph>\<open>Purge\<close> button restricts the document model to theories that are |
904 |
required for open editor buffers: inaccessible theories are removed and will |
|
905 |
be rechecked when opened or imported later. |
|
906 |
||
61415 | 907 |
\<^medskip> |
61574 | 908 |
Formal markup of checked theory content is turned into GUI rendering, based |
62185 | 909 |
on a standard repertoire known from mainstream IDEs for programming |
910 |
languages: colors, icons, highlighting, squiggly underlines, tooltips, |
|
911 |
hyperlinks etc. For outer syntax of Isabelle/Isar there is some traditional |
|
912 |
syntax-highlighting via static keywords and tokenization within the editor; |
|
913 |
this buffer syntax is determined from theory imports. In contrast, the |
|
914 |
painting of inner syntax (term language etc.)\ uses semantic information |
|
915 |
that is reported dynamically from the logical context. Thus the prover can |
|
916 |
provide additional markup to help the user to understand the meaning of |
|
917 |
formal text, and to produce more text with some add-on tools (e.g.\ |
|
918 |
information messages with \<^emph>\<open>sendback\<close> markup by automated provers or |
|
919 |
disprovers in the background). \<close> |
|
57322 | 920 |
|
921 |
||
58618 | 922 |
subsection \<open>Auxiliary files \label{sec:aux-files}\<close> |
57322 | 923 |
|
58618 | 924 |
text \<open> |
57329 | 925 |
Special load commands like @{command_ref ML_file} and @{command_ref |
58554 | 926 |
SML_file} @{cite "isabelle-isar-ref"} refer to auxiliary files within some |
57329 | 927 |
theory. Conceptually, the file argument of the command extends the theory |
928 |
source by the content of the file, but its editor buffer may be loaded~/ |
|
929 |
changed~/ saved separately. The PIDE document model propagates changes of |
|
930 |
auxiliary file content to the corresponding load command in the theory, to |
|
931 |
update and process it accordingly: changes of auxiliary file content are |
|
932 |
treated as changes of the corresponding load command. |
|
57323 | 933 |
|
61415 | 934 |
\<^medskip> |
61574 | 935 |
As a concession to the massive amount of ML files in Isabelle/HOL itself, |
936 |
the content of auxiliary files is only added to the PIDE document-model on |
|
937 |
demand, the first time when opened explicitly in the editor. There are |
|
938 |
further tricks to manage markup of ML files, such that Isabelle/HOL may be |
|
939 |
edited conveniently in the Prover IDE on small machines with only 8\,GB of |
|
940 |
main memory. Using \<^verbatim>\<open>Pure\<close> as logic session image, the exploration may start |
|
63680 | 941 |
at the top \<^file>\<open>$ISABELLE_HOME/src/HOL/Main.thy\<close> or the bottom |
66683 | 942 |
\<^file>\<open>$ISABELLE_HOME/src/HOL/HOL.thy\<close>, for example. It is also possible to |
943 |
explore the Isabelle/Pure bootstrap process (a virtual copy) by opening |
|
944 |
\<^file>\<open>$ISABELLE_HOME/src/Pure/ROOT.ML\<close> like a theory in the Prover IDE. |
|
57323 | 945 |
|
946 |
Initially, before an auxiliary file is opened in the editor, the prover |
|
947 |
reads its content from the physical file-system. After the file is opened |
|
948 |
for the first time in the editor, e.g.\ by following the hyperlink |
|
949 |
(\secref{sec:tooltips-hyperlinks}) for the argument of its @{command |
|
950 |
ML_file} command, the content is taken from the jEdit buffer. |
|
951 |
||
952 |
The change of responsibility from prover to editor counts as an update of |
|
953 |
the document content, so subsequent theory sources need to be re-checked. |
|
57420 | 954 |
When the buffer is closed, the responsibility remains to the editor: the |
955 |
file may be opened again without causing another document update. |
|
57323 | 956 |
|
957 |
A file that is opened in the editor, but its theory with the load command is |
|
958 |
not, is presently inactive in the document model. A file that is loaded via |
|
959 |
multiple load commands is associated to an arbitrary one: this situation is |
|
960 |
morally unsupported and might lead to confusion. |
|
961 |
||
61415 | 962 |
\<^medskip> |
61574 | 963 |
Output that refers to an auxiliary file is combined with that of the |
964 |
corresponding load command, and shown whenever the file or the command are |
|
965 |
active (see also \secref{sec:output}). |
|
57323 | 966 |
|
967 |
Warnings, errors, and other useful markup is attached directly to the |
|
62185 | 968 |
positions in the auxiliary file buffer, in the manner of standard IDEs. By |
63680 | 969 |
using the load command @{command SML_file} as explained in |
970 |
\<^file>\<open>$ISABELLE_HOME/src/Tools/SML/Examples.thy\<close>, Isabelle/jEdit may be used as |
|
57323 | 971 |
fully-featured IDE for Standard ML, independently of theory or proof |
61574 | 972 |
development: the required theory merely serves as some kind of project file |
973 |
for a collection of SML source modules. |
|
58618 | 974 |
\<close> |
54322 | 975 |
|
54352 | 976 |
|
58618 | 977 |
section \<open>Output \label{sec:output}\<close> |
54353 | 978 |
|
58618 | 979 |
text \<open> |
61574 | 980 |
Prover output consists of \<^emph>\<open>markup\<close> and \<^emph>\<open>messages\<close>. Both are directly |
981 |
attached to the corresponding positions in the original source text, and |
|
982 |
visualized in the text area, e.g.\ as text colours for free and bound |
|
983 |
variables, or as squiggly underlines for warnings, errors etc.\ (see also |
|
984 |
\figref{fig:output}). In the latter case, the corresponding messages are |
|
985 |
shown by hovering with the mouse over the highlighted text --- although in |
|
986 |
many situations the user should already get some clue by looking at the |
|
62185 | 987 |
position of the text highlighting, without seeing the message body itself. |
54357 | 988 |
|
62183 | 989 |
\begin{figure}[!htb] |
54357 | 990 |
\begin{center} |
57312 | 991 |
\includegraphics[scale=0.333]{output} |
54357 | 992 |
\end{center} |
62185 | 993 |
\caption{Multiple views on prover output: gutter with icon, text area with |
994 |
popup, text overview column, \<^emph>\<open>Theories\<close> panel, \<^emph>\<open>Output\<close> panel} |
|
54357 | 995 |
\label{fig:output} |
996 |
\end{figure} |
|
54353 | 997 |
|
62185 | 998 |
The ``gutter'' on the left-hand-side of the text area uses icons to |
999 |
provide a summary of the messages within the adjacent text line. Message |
|
61574 | 1000 |
priorities are used to prefer errors over warnings, warnings over |
62185 | 1001 |
information messages; other output is ignored. |
54353 | 1002 |
|
62185 | 1003 |
The ``text overview column'' on the right-hand-side of the text area uses |
1004 |
similar information to paint small rectangles for the overall status of the |
|
1005 |
whole text buffer. The graphics is scaled to fit the logical buffer length |
|
1006 |
into the given window height. Mouse clicks on the overview area move the |
|
1007 |
cursor approximately to the corresponding text line in the buffer. |
|
54353 | 1008 |
|
62185 | 1009 |
The \<^emph>\<open>Theories\<close> panel provides another course-grained overview, but without |
1010 |
direct correspondence to text positions. The coloured rectangles represent |
|
1011 |
the amount of messages of a certain kind (warnings, errors, etc.) and the |
|
66683 | 1012 |
execution status of commands. The border of each rectangle indicates the |
1013 |
overall status of processing: a thick border means it is \<^emph>\<open>finished\<close> or |
|
1014 |
\<^emph>\<open>failed\<close> (with color for errors). A double-click on one of the theory |
|
1015 |
entries with their status overview opens the corresponding text buffer, |
|
1016 |
without moving the cursor to a specific point. |
|
54353 | 1017 |
|
61415 | 1018 |
\<^medskip> |
62185 | 1019 |
The \<^emph>\<open>Output\<close> panel displays prover messages that correspond to a given |
1020 |
command, within a separate window. The cursor position in the presently |
|
1021 |
active text area determines the prover command whose cumulative message |
|
1022 |
output is appended and shown in that window (in canonical order according to |
|
1023 |
the internal execution of the command). There are also control elements to |
|
1024 |
modify the update policy of the output wrt.\ continued editor movements: |
|
1025 |
\<^emph>\<open>Auto update\<close> and \<^emph>\<open>Update\<close>. This is particularly useful for multiple |
|
1026 |
instances of the \<^emph>\<open>Output\<close> panel to look at different situations. |
|
1027 |
Alternatively, the panel can be turned into a passive \<^emph>\<open>Info\<close> window via the |
|
1028 |
\<^emph>\<open>Detach\<close> menu item. |
|
54353 | 1029 |
|
62185 | 1030 |
Proof state is handled separately (\secref{sec:state-output}), but it is |
1031 |
also possible to tick the corresponding checkbox to append it to regular |
|
1032 |
output (\figref{fig:output-including-state}). This is a globally persistent |
|
1033 |
option: it affects all open panels and future editor sessions. |
|
54353 | 1034 |
|
62185 | 1035 |
\begin{figure}[!htb] |
1036 |
\begin{center} |
|
1037 |
\includegraphics[scale=0.333]{output-including-state} |
|
1038 |
\end{center} |
|
1039 |
\caption{Proof state display within the regular output panel} |
|
1040 |
\label{fig:output-including-state} |
|
1041 |
\end{figure} |
|
54353 | 1042 |
|
61415 | 1043 |
\<^medskip> |
62185 | 1044 |
Following the IDE principle, regular messages are attached to the original |
1045 |
source in the proper place and may be inspected on demand via popups. This |
|
1046 |
excludes messages that are somehow internal to the machinery of proof |
|
1047 |
checking, notably \<^emph>\<open>proof state\<close> and \<^emph>\<open>tracing\<close>. |
|
1048 |
||
1049 |
In any case, the same display technology is used for small popups and big |
|
1050 |
output windows. The formal text contains markup that may be explored |
|
1051 |
recursively via further popups and hyperlinks (see |
|
61574 | 1052 |
\secref{sec:tooltips-hyperlinks}), or clicked directly to initiate certain |
1053 |
actions (see \secref{sec:auto-tools} and \secref{sec:sledgehammer}). |
|
71505 | 1054 |
|
1055 |
\<^medskip> |
|
1056 |
Alternatively, the subsequent actions (with keyboard shortcuts) allow to |
|
1057 |
show tooltip messages or navigate error positions: |
|
1058 |
||
1059 |
\<^medskip> |
|
1060 |
\begin{tabular}[t]{l} |
|
1061 |
@{action_ref "isabelle.tooltip"} (\<^verbatim>\<open>CS+b\<close>) \\ |
|
1062 |
@{action_ref "isabelle.message"} (\<^verbatim>\<open>CS+m\<close>) \\ |
|
1063 |
\end{tabular}\quad |
|
1064 |
\begin{tabular}[t]{l} |
|
1065 |
@{action_ref "isabelle.first-error"} (\<^verbatim>\<open>CS+a\<close>) \\ |
|
1066 |
@{action_ref "isabelle.last-error"} (\<^verbatim>\<open>CS+z\<close>) \\ |
|
1067 |
@{action_ref "isabelle.next-error"} (\<^verbatim>\<open>CS+n\<close>) \\ |
|
1068 |
@{action_ref "isabelle.prev-error"} (\<^verbatim>\<open>CS+p\<close>) \\ |
|
1069 |
\end{tabular} |
|
1070 |
\<^medskip> |
|
61574 | 1071 |
\<close> |
54353 | 1072 |
|
1073 |
||
62185 | 1074 |
section \<open>Proof state \label{sec:state-output}\<close> |
62154 | 1075 |
|
1076 |
text \<open> |
|
62185 | 1077 |
The main purpose of the Prover IDE is to help the user editing proof |
1078 |
documents, with ongoing formal checking by the prover in the background. |
|
1079 |
This can be done to some extent in the main text area alone, especially for |
|
1080 |
well-structured Isar proofs. |
|
1081 |
||
1082 |
Nonetheless, internal proof state needs to be inspected in many situations |
|
1083 |
of exploration and ``debugging''. The \<^emph>\<open>State\<close> panel shows exclusively such |
|
1084 |
proof state messages without further distraction, while all other messages |
|
1085 |
are displayed in \<^emph>\<open>Output\<close> (\secref{sec:output}). |
|
1086 |
\Figref{fig:output-and-state} shows a typical GUI layout where both panels |
|
1087 |
are open. |
|
62154 | 1088 |
|
62183 | 1089 |
\begin{figure}[!htb] |
62154 | 1090 |
\begin{center} |
1091 |
\includegraphics[scale=0.333]{output-and-state} |
|
1092 |
\end{center} |
|
1093 |
\caption{Separate proof state display (right) and other output (bottom).} |
|
1094 |
\label{fig:output-and-state} |
|
1095 |
\end{figure} |
|
1096 |
||
62185 | 1097 |
Another typical arrangement has more than one \<^emph>\<open>State\<close> panel open (as |
1098 |
floating windows), with \<^emph>\<open>Auto update\<close> disabled to look at an old situation |
|
1099 |
while the proof text in the vicinity is changed. The \<^emph>\<open>Update\<close> button |
|
1100 |
triggers an explicit one-shot update; this operation is also available via |
|
1101 |
the action @{action "isabelle.update-state"} (keyboard shortcut \<^verbatim>\<open>S+ENTER\<close>). |
|
1102 |
||
1103 |
On small screens, it is occasionally useful to have all messages |
|
1104 |
concatenated in the regular \<^emph>\<open>Output\<close> panel, e.g.\ see |
|
1105 |
\figref{fig:output-including-state}. |
|
1106 |
||
1107 |
\<^medskip> |
|
1108 |
The mechanics of \<^emph>\<open>Output\<close> versus \<^emph>\<open>State\<close> are slightly different: |
|
1109 |
||
1110 |
\<^item> \<^emph>\<open>Output\<close> shows information that is continuously produced and already |
|
1111 |
present when the GUI wants to show it. This is implicitly controlled by |
|
1112 |
the visible perspective on the text. |
|
1113 |
||
1114 |
\<^item> \<^emph>\<open>State\<close> initiates a real-time query on demand, with a full round trip |
|
1115 |
including a fresh print operation on the prover side. This is controlled |
|
1116 |
explicitly when the cursor is moved to the next command (\<^emph>\<open>Auto update\<close>) |
|
1117 |
or the \<^emph>\<open>Update\<close> operation is triggered. |
|
1118 |
||
1119 |
This can make a difference in GUI responsibility and resource usage within |
|
1120 |
the prover process. Applications with very big proof states that are only |
|
1121 |
inspected in isolation work better with the \<^emph>\<open>State\<close> panel. |
|
62154 | 1122 |
\<close> |
1123 |
||
62185 | 1124 |
|
58618 | 1125 |
section \<open>Query \label{sec:query}\<close> |
57311 | 1126 |
|
58618 | 1127 |
text \<open> |
61574 | 1128 |
The \<^emph>\<open>Query\<close> panel provides various GUI forms to request extra information |
62249 | 1129 |
from the prover, as a replacement of old-style diagnostic commands like |
1130 |
@{command find_theorems}. There are input fields and buttons for a |
|
1131 |
particular query command, with output in a dedicated text area. |
|
57311 | 1132 |
|
62249 | 1133 |
The main query modes are presented as separate tabs: \<^emph>\<open>Find Theorems\<close>, |
1134 |
\<^emph>\<open>Find Constants\<close>, \<^emph>\<open>Print Context\<close>, e.g.\ see \figref{fig:query}. As usual |
|
1135 |
in jEdit, multiple \<^emph>\<open>Query\<close> windows may be active at the same time: any |
|
1136 |
number of floating instances, but at most one docked instance (which is used |
|
1137 |
by default). |
|
57313 | 1138 |
|
62183 | 1139 |
\begin{figure}[!htb] |
57313 | 1140 |
\begin{center} |
1141 |
\includegraphics[scale=0.333]{query} |
|
1142 |
\end{center} |
|
62154 | 1143 |
\caption{An instance of the Query panel: find theorems} |
57313 | 1144 |
\label{fig:query} |
1145 |
\end{figure} |
|
57311 | 1146 |
|
61415 | 1147 |
\<^medskip> |
1148 |
The following GUI elements are common to all query modes: |
|
57311 | 1149 |
|
61574 | 1150 |
\<^item> The spinning wheel provides feedback about the status of a pending query |
1151 |
wrt.\ the evaluation of its context and its own operation. |
|
57311 | 1152 |
|
61574 | 1153 |
\<^item> The \<^emph>\<open>Apply\<close> button attaches a fresh query invocation to the current |
1154 |
context of the command where the cursor is pointing in the text. |
|
57311 | 1155 |
|
61574 | 1156 |
\<^item> The \<^emph>\<open>Search\<close> field allows to highlight query output according to some |
1157 |
regular expression, in the notation that is commonly used on the Java |
|
70252 | 1158 |
platform.\<^footnote>\<open>\<^url>\<open>https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/regex/Pattern.html\<close>\<close> |
61574 | 1159 |
This may serve as an additional visual filter of the result. |
57311 | 1160 |
|
61574 | 1161 |
\<^item> The \<^emph>\<open>Zoom\<close> box controls the font size of the output area. |
57311 | 1162 |
|
1163 |
All query operations are asynchronous: there is no need to wait for the |
|
1164 |
evaluation of the document for the query context, nor for the query |
|
61477 | 1165 |
operation itself. Query output may be detached as independent \<^emph>\<open>Info\<close> |
57311 | 1166 |
window, using a menu operation of the dockable window manager. The printed |
1167 |
result usually provides sufficient clues about the original query, with some |
|
1168 |
hyperlink to its context (via markup of its head line). |
|
58618 | 1169 |
\<close> |
57311 | 1170 |
|
1171 |
||
58618 | 1172 |
subsection \<open>Find theorems\<close> |
57311 | 1173 |
|
58618 | 1174 |
text \<open> |
61574 | 1175 |
The \<^emph>\<open>Query\<close> panel in \<^emph>\<open>Find Theorems\<close> mode retrieves facts from the theory |
1176 |
or proof context matching all of given criteria in the \<^emph>\<open>Find\<close> text field. A |
|
68042 | 1177 |
single criterion has the following syntax: |
57311 | 1178 |
|
69597 | 1179 |
\<^rail>\<open> |
62969 | 1180 |
('-'?) ('name' ':' @{syntax name} | 'intro' | 'elim' | 'dest' | |
57313 | 1181 |
'solves' | 'simp' ':' @{syntax term} | @{syntax term}) |
69597 | 1182 |
\<close> |
57313 | 1183 |
|
61574 | 1184 |
See also the Isar command @{command_ref find_theorems} in @{cite |
1185 |
"isabelle-isar-ref"}. |
|
58618 | 1186 |
\<close> |
57311 | 1187 |
|
1188 |
||
58618 | 1189 |
subsection \<open>Find constants\<close> |
57311 | 1190 |
|
58618 | 1191 |
text \<open> |
61574 | 1192 |
The \<^emph>\<open>Query\<close> panel in \<^emph>\<open>Find Constants\<close> mode prints all constants whose type |
1193 |
meets all of the given criteria in the \<^emph>\<open>Find\<close> text field. A single |
|
68042 | 1194 |
criterion has the following syntax: |
57313 | 1195 |
|
69597 | 1196 |
\<^rail>\<open> |
57313 | 1197 |
('-'?) |
62969 | 1198 |
('name' ':' @{syntax name} | 'strict' ':' @{syntax type} | @{syntax type}) |
69597 | 1199 |
\<close> |
57313 | 1200 |
|
58554 | 1201 |
See also the Isar command @{command_ref find_consts} in @{cite |
1202 |
"isabelle-isar-ref"}. |
|
58618 | 1203 |
\<close> |
57311 | 1204 |
|
1205 |
||
58618 | 1206 |
subsection \<open>Print context\<close> |
57311 | 1207 |
|
58618 | 1208 |
text \<open> |
61574 | 1209 |
The \<^emph>\<open>Query\<close> panel in \<^emph>\<open>Print Context\<close> mode prints information from the |
1210 |
theory or proof context, or proof state. See also the Isar commands |
|
57329 | 1211 |
@{command_ref print_context}, @{command_ref print_cases}, @{command_ref |
62249 | 1212 |
print_term_bindings}, @{command_ref print_theorems}, described in @{cite |
1213 |
"isabelle-isar-ref"}. |
|
58618 | 1214 |
\<close> |
57311 | 1215 |
|
1216 |
||
58618 | 1217 |
section \<open>Tooltips and hyperlinks \label{sec:tooltips-hyperlinks}\<close> |
54352 | 1218 |
|
58618 | 1219 |
text \<open> |
62249 | 1220 |
Formally processed text (prover input or output) contains rich markup that |
1221 |
can be explored by using the \<^verbatim>\<open>CONTROL\<close> modifier key on Linux and Windows, |
|
72894
bd2269b6cd99
updated "macOS" terminology: current Big Sur is already version 11;
wenzelm
parents:
72251
diff
changeset
|
1222 |
or \<^verbatim>\<open>COMMAND\<close> on macOS. Hovering with the mouse while the modifier is |
62249 | 1223 |
pressed reveals a \<^emph>\<open>tooltip\<close> (grey box over the text with a yellow popup) |
1224 |
and/or a \<^emph>\<open>hyperlink\<close> (black rectangle over the text with change of mouse |
|
1225 |
pointer); see also \figref{fig:tooltip}. |
|
54331 | 1226 |
|
62183 | 1227 |
\begin{figure}[!htb] |
54331 | 1228 |
\begin{center} |
70251 | 1229 |
\includegraphics[scale=0.333]{popup1} |
54331 | 1230 |
\end{center} |
54356 | 1231 |
\caption{Tooltip and hyperlink for some formal entity} |
54350 | 1232 |
\label{fig:tooltip} |
54331 | 1233 |
\end{figure} |
1234 |
||
62249 | 1235 |
Tooltip popups use the same rendering technology as the main text area, and |
61574 | 1236 |
further tooltips and/or hyperlinks may be exposed recursively by the same |
1237 |
mechanism; see \figref{fig:nested-tooltips}. |
|
54323 | 1238 |
|
62183 | 1239 |
\begin{figure}[!htb] |
54331 | 1240 |
\begin{center} |
70251 | 1241 |
\includegraphics[scale=0.333]{popup2} |
54331 | 1242 |
\end{center} |
54356 | 1243 |
\caption{Nested tooltips over formal entities} |
54350 | 1244 |
\label{fig:nested-tooltips} |
54331 | 1245 |
\end{figure} |
54350 | 1246 |
|
61574 | 1247 |
The tooltip popup window provides some controls to \<^emph>\<open>close\<close> or \<^emph>\<open>detach\<close> the |
1248 |
window, turning it into a separate \<^emph>\<open>Info\<close> window managed by jEdit. The |
|
1249 |
\<^verbatim>\<open>ESCAPE\<close> key closes \<^emph>\<open>all\<close> popups, which is particularly relevant when |
|
1250 |
nested tooltips are stacking up. |
|
54352 | 1251 |
|
61415 | 1252 |
\<^medskip> |
61574 | 1253 |
A black rectangle in the text indicates a hyperlink that may be followed by |
1254 |
a mouse click (while the \<^verbatim>\<open>CONTROL\<close> or \<^verbatim>\<open>COMMAND\<close> modifier key is still |
|
1255 |
pressed). Such jumps to other text locations are recorded by the |
|
1256 |
\<^emph>\<open>Navigator\<close> plugin, which is bundled with Isabelle/jEdit and enabled by |
|
62249 | 1257 |
default. There are usually navigation arrows in the main jEdit toolbar. |
54352 | 1258 |
|
62249 | 1259 |
Note that the link target may be a file that is itself not subject to formal |
1260 |
document processing of the editor session and thus prevents further |
|
61574 | 1261 |
exploration: the chain of hyperlinks may end in some source file of the |
62249 | 1262 |
underlying logic image, or within the ML bootstrap sources of Isabelle/Pure. |
61574 | 1263 |
\<close> |
54321 | 1264 |
|
1265 |
||
64514 | 1266 |
section \<open>Formal scopes and semantic selection\<close> |
1267 |
||
1268 |
text \<open> |
|
1269 |
Formal entities are semantically annotated in the source text as explained |
|
1270 |
in \secref{sec:tooltips-hyperlinks}. A \<^emph>\<open>formal scope\<close> consists of the |
|
1271 |
defining position with all its referencing positions. This correspondence is |
|
1272 |
highlighted in the text according to the cursor position, see also |
|
1273 |
\figref{fig:scope1}. Here the referencing positions are rendered with an |
|
72931 | 1274 |
additional border, in reminiscence to a hyperlink. A mouse click with \<^verbatim>\<open>C\<close> |
1275 |
modifier, or the action @{action_def "isabelle.goto-entity"} (shortcut |
|
1276 |
\<^verbatim>\<open>CS+d\<close>) jumps to the original defining position. |
|
64514 | 1277 |
|
1278 |
\begin{figure}[!htb] |
|
1279 |
\begin{center} |
|
70251 | 1280 |
\includegraphics[scale=0.333]{scope1} |
64514 | 1281 |
\end{center} |
1282 |
\caption{Scope of formal entity: defining vs.\ referencing positions} |
|
1283 |
\label{fig:scope1} |
|
1284 |
\end{figure} |
|
1285 |
||
1286 |
The action @{action_def "isabelle.select-entity"} (shortcut \<^verbatim>\<open>CS+ENTER\<close>) |
|
1287 |
supports semantic selection of all occurrences of the formal entity at the |
|
72931 | 1288 |
caret position, with a defining position in the current editor buffer. This |
1289 |
facilitates systematic renaming, using regular jEdit editing of a |
|
1290 |
multi-selection, see also \figref{fig:scope2}. |
|
64514 | 1291 |
|
1292 |
\begin{figure}[!htb] |
|
1293 |
\begin{center} |
|
70251 | 1294 |
\includegraphics[scale=0.333]{scope2} |
64514 | 1295 |
\end{center} |
1296 |
\caption{The result of semantic selection and systematic renaming} |
|
1297 |
\label{fig:scope2} |
|
1298 |
\end{figure} |
|
72931 | 1299 |
|
1300 |
By default, the visual feedback on scopes is restricted to definitions |
|
1301 |
within the visible text area. The keyboard modifier \<^verbatim>\<open>CS\<close> overrides this: |
|
1302 |
then all defining and referencing positions are shown. This modifier may be |
|
1303 |
configured via option @{system_option jedit_focus_modifier}; the default |
|
72944 | 1304 |
coincides with the modifier for the above keyboard actions. The empty string |
1305 |
means to disable this additional visual feedback. |
|
64514 | 1306 |
\<close> |
1307 |
||
1308 |
||
58618 | 1309 |
section \<open>Completion \label{sec:completion}\<close> |
57324 | 1310 |
|
58618 | 1311 |
text \<open> |
61477 | 1312 |
Smart completion of partial input is the IDE functionality \<^emph>\<open>par |
1313 |
excellance\<close>. Isabelle/jEdit combines several sources of information to |
|
57328 | 1314 |
achieve that. Despite its complexity, it should be possible to get some idea |
1315 |
how completion works by experimentation, based on the overview of completion |
|
57335 | 1316 |
varieties in \secref{sec:completion-varieties}. The remaining subsections |
1317 |
explain concepts around completion more systematically. |
|
57325 | 1318 |
|
61415 | 1319 |
\<^medskip> |
61477 | 1320 |
\<^emph>\<open>Explicit completion\<close> is triggered by the action @{action_ref |
61574 | 1321 |
"isabelle.complete"}, which is bound to the keyboard shortcut \<^verbatim>\<open>C+b\<close>, and |
1322 |
thus overrides the jEdit default for @{action_ref "complete-word"}. |
|
57335 | 1323 |
|
61574 | 1324 |
\<^emph>\<open>Implicit completion\<close> hooks into the regular keyboard input stream of the |
1325 |
editor, with some event filtering and optional delays. |
|
54361 | 1326 |
|
61415 | 1327 |
\<^medskip> |
61574 | 1328 |
Completion options may be configured in \<^emph>\<open>Plugin Options~/ Isabelle~/ |
1329 |
General~/ Completion\<close>. These are explained in further detail below, whenever |
|
1330 |
relevant. There is also a summary of options in |
|
57328 | 1331 |
\secref{sec:completion-options}. |
1332 |
||
57335 | 1333 |
The asynchronous nature of PIDE interaction means that information from the |
1334 |
prover is delayed --- at least by a full round-trip of the document update |
|
1335 |
protocol. The default options already take this into account, with a |
|
57324 | 1336 |
sufficiently long completion delay to speculate on the availability of all |
57335 | 1337 |
relevant information from the editor and the prover, before completing text |
1338 |
immediately or producing a popup. Although there is an inherent danger of |
|
1339 |
non-deterministic behaviour due to such real-time parameters, the general |
|
1340 |
completion policy aims at determined results as far as possible. |
|
58618 | 1341 |
\<close> |
57324 | 1342 |
|
1343 |
||
58618 | 1344 |
subsection \<open>Varieties of completion \label{sec:completion-varieties}\<close> |
57324 | 1345 |
|
58618 | 1346 |
subsubsection \<open>Built-in templates\<close> |
57324 | 1347 |
|
58618 | 1348 |
text \<open> |
57327 | 1349 |
Isabelle is ultimately a framework of nested sub-languages of different |
57328 | 1350 |
kinds and purposes. The completion mechanism supports this by the following |
1351 |
built-in templates: |
|
1352 |
||
64513 | 1353 |
\<^descr> \<^verbatim>\<open>`\<close> (single ASCII back-quote) or \<^verbatim>\<open>"\<close> (double ASCII quote) support |
1354 |
\<^emph>\<open>quotations\<close> via text cartouches. There are three selections, which are |
|
1355 |
always presented in the same order and do not depend on any context |
|
1356 |
information. The default choice produces a template ``\<open>\<open>\<box>\<close>\<close>'', where the |
|
1357 |
box indicates the cursor position after insertion; the other choices help |
|
1358 |
to repair the block structure of unbalanced text cartouches. |
|
57324 | 1359 |
|
61574 | 1360 |
\<^descr> \<^verbatim>\<open>@{\<close> is completed to the template ``\<open>@{\<box>}\<close>'', where the box indicates |
1361 |
the cursor position after insertion. Here it is convenient to use the |
|
1362 |
wildcard ``\<^verbatim>\<open>__\<close>'' or a more specific name prefix to let semantic |
|
1363 |
completion of name-space entries propose antiquotation names. |
|
57335 | 1364 |
|
1365 |
With some practice, input of quoted sub-languages and antiquotations of |
|
70252 | 1366 |
embedded languages should work smoothly. Note that national keyboard layouts |
64513 | 1367 |
might cause problems with back-quote as dead key, but double quote can be |
1368 |
used instead. |
|
58618 | 1369 |
\<close> |
57335 | 1370 |
|
57327 | 1371 |
|
58618 | 1372 |
subsubsection \<open>Syntax keywords\<close> |
57335 | 1373 |
|
58618 | 1374 |
text \<open> |
57335 | 1375 |
Syntax completion tables are determined statically from the keywords of the |
1376 |
``outer syntax'' of the underlying edit mode: for theory files this is the |
|
60257 | 1377 |
syntax of Isar commands according to the cumulative theory imports. |
57327 | 1378 |
|
57335 | 1379 |
Keywords are usually plain words, which means the completion mechanism only |
1380 |
inserts them directly into the text for explicit completion |
|
1381 |
(\secref{sec:completion-input}), but produces a popup |
|
1382 |
(\secref{sec:completion-popup}) otherwise. |
|
1383 |
||
1384 |
At the point where outer syntax keywords are defined, it is possible to |
|
1385 |
specify an alternative replacement string to be inserted instead of the |
|
1386 |
keyword itself. An empty string means to suppress the keyword altogether, |
|
1387 |
which is occasionally useful to avoid confusion, e.g.\ the rare keyword |
|
61493 | 1388 |
@{command simproc_setup} vs.\ the frequent name-space entry \<open>simp\<close>. |
58618 | 1389 |
\<close> |
57324 | 1390 |
|
1391 |
||
58618 | 1392 |
subsubsection \<open>Isabelle symbols\<close> |
57324 | 1393 |
|
58618 | 1394 |
text \<open> |
57325 | 1395 |
The completion tables for Isabelle symbols (\secref{sec:symbols}) are |
70109 | 1396 |
determined statically from \<^file>\<open>$ISABELLE_HOME/etc/symbols\<close> and |
1397 |
\<^path>\<open>$ISABELLE_HOME_USER/etc/symbols\<close> for each symbol specification as |
|
1398 |
follows: |
|
57325 | 1399 |
|
61415 | 1400 |
\<^medskip> |
57325 | 1401 |
\begin{tabular}{ll} |
61477 | 1402 |
\<^bold>\<open>completion entry\<close> & \<^bold>\<open>example\<close> \\\hline |
61503 | 1403 |
literal symbol & \<^verbatim>\<open>\<forall>\<close> \\ |
1404 |
symbol name with backslash & \<^verbatim>\<open>\\<close>\<^verbatim>\<open>forall\<close> \\ |
|
1405 |
symbol abbreviation & \<^verbatim>\<open>ALL\<close> or \<^verbatim>\<open>!\<close> \\ |
|
57325 | 1406 |
\end{tabular} |
61415 | 1407 |
\<^medskip> |
57325 | 1408 |
|
57335 | 1409 |
When inserted into the text, the above examples all produce the same Unicode |
61503 | 1410 |
rendering \<open>\<forall>\<close> of the underlying symbol \<^verbatim>\<open>\<forall>\<close>. |
57325 | 1411 |
|
61574 | 1412 |
A symbol abbreviation that is a plain word, like \<^verbatim>\<open>ALL\<close>, is treated like a |
1413 |
syntax keyword. Non-word abbreviations like \<^verbatim>\<open>-->\<close> are inserted more |
|
1414 |
aggressively, except for single-character abbreviations like \<^verbatim>\<open>!\<close> above. |
|
57324 | 1415 |
|
62250 | 1416 |
Completion via abbreviations like \<^verbatim>\<open>ALL\<close> or \<^verbatim>\<open>-->\<close> depends on the semantic |
1417 |
language context (\secref{sec:completion-context}). In contrast, backslash |
|
68736 | 1418 |
sequences like \<^verbatim>\<open>\forall\<close> \<^verbatim>\<open>\<forall>\<close> are always possible, but require additional |
1419 |
interaction to confirm (via popup). This is important in ambiguous |
|
1420 |
situations, e.g.\ for Isabelle document source, which may contain formal |
|
1421 |
symbols or informal {\LaTeX} macros. Backslash sequences also help when |
|
1422 |
input is broken, and thus escapes its normal semantic context: e.g.\ |
|
1423 |
antiquotations or string literals in ML, which do not allow arbitrary |
|
1424 |
backslash sequences. |
|
62250 | 1425 |
|
68736 | 1426 |
Special symbols like \<^verbatim>\<open>\<comment>\<close> or control symbols like \<^verbatim>\<open>\<^cancel>\<close>, |
1427 |
\<^verbatim>\<open>\<^latex>\<close>, \<^verbatim>\<open>\<^binding>\<close> can have an argument: completing on a name |
|
1428 |
prefix offers a template with an empty cartouche. Thus completion of \<^verbatim>\<open>\co\<close> |
|
1429 |
or \<^verbatim>\<open>\ca\<close> allows to compose formal document comments quickly.\<^footnote>\<open>It is |
|
1430 |
customary to put a space between \<^verbatim>\<open>\<comment>\<close> and its argument, while |
|
1431 |
control symbols do \<^emph>\<open>not\<close> allow extra space here.\<close> |
|
58618 | 1432 |
\<close> |
57324 | 1433 |
|
1434 |
||
64513 | 1435 |
subsubsection \<open>User-defined abbreviations\<close> |
1436 |
||
1437 |
text \<open> |
|
1438 |
The theory header syntax supports abbreviations via the \<^theory_text>\<open>abbrevs\<close> keyword |
|
1439 |
@{cite "isabelle-isar-ref"}. This is a slight generalization of built-in |
|
1440 |
templates and abbreviations for Isabelle symbols, as explained above. |
|
1441 |
Examples may be found in the Isabelle sources, by searching for |
|
1442 |
``\<^verbatim>\<open>abbrevs\<close>'' in \<^verbatim>\<open>*.thy\<close> files. |
|
1443 |
||
1444 |
The \<^emph>\<open>Symbols\<close> panel shows the abbreviations that are available in the |
|
1445 |
current theory buffer (according to its \<^theory_text>\<open>imports\<close>) in the \<^verbatim>\<open>Abbrevs\<close> tab. |
|
1446 |
\<close> |
|
1447 |
||
1448 |
||
58618 | 1449 |
subsubsection \<open>Name-space entries\<close> |
57324 | 1450 |
|
58618 | 1451 |
text \<open> |
57324 | 1452 |
This is genuine semantic completion, using information from the prover, so |
61477 | 1453 |
it requires some delay. A \<^emph>\<open>failed name-space lookup\<close> produces an error |
57335 | 1454 |
message that is annotated with a list of alternative names that are legal. |
1455 |
The list of results is truncated according to the system option |
|
1456 |
@{system_option_ref completion_limit}. The completion mechanism takes this |
|
1457 |
into account when collecting information on the prover side. |
|
57324 | 1458 |
|
61574 | 1459 |
Already recognized names are \<^emph>\<open>not\<close> completed further, but completion may be |
1460 |
extended by appending a suffix of underscores. This provokes a failed |
|
70252 | 1461 |
lookup, and another completion attempt (ignoring the underscores). For |
61574 | 1462 |
example, in a name space where \<^verbatim>\<open>foo\<close> and \<^verbatim>\<open>foobar\<close> are known, the input |
1463 |
\<^verbatim>\<open>foo\<close> remains unchanged, but \<^verbatim>\<open>foo_\<close> may be completed to \<^verbatim>\<open>foo\<close> or |
|
1464 |
\<^verbatim>\<open>foobar\<close>. |
|
57324 | 1465 |
|
61574 | 1466 |
The special identifier ``\<^verbatim>\<open>__\<close>'' serves as a wild-card for arbitrary |
1467 |
completion: it exposes the name-space content to the completion mechanism |
|
1468 |
(truncated according to @{system_option completion_limit}). This is |
|
1469 |
occasionally useful to explore an unknown name-space, e.g.\ in some |
|
57324 | 1470 |
template. |
58618 | 1471 |
\<close> |
57324 | 1472 |
|
1473 |
||
58618 | 1474 |
subsubsection \<open>File-system paths\<close> |
57324 | 1475 |
|
58618 | 1476 |
text \<open> |
62250 | 1477 |
Depending on prover markup about file-system paths in the source text, e.g.\ |
1478 |
for the argument of a load command (\secref{sec:aux-files}), the completion |
|
1479 |
mechanism explores the directory content and offers the result as completion |
|
1480 |
popup. Relative path specifications are understood wrt.\ the \<^emph>\<open>master |
|
1481 |
directory\<close> of the document node (\secref{sec:buffer-node}) of the enclosing |
|
1482 |
editor buffer; this requires a proper theory, not an auxiliary file. |
|
57324 | 1483 |
|
1484 |
A suffix of slashes may be used to continue the exploration of an already |
|
1485 |
recognized directory name. |
|
58618 | 1486 |
\<close> |
57324 | 1487 |
|
1488 |
||
58618 | 1489 |
subsubsection \<open>Spell-checking\<close> |
57328 | 1490 |
|
58618 | 1491 |
text \<open> |
57328 | 1492 |
The spell-checker combines semantic markup from the prover (regions of plain |
1493 |
words) with static dictionaries (word lists) that are known to the editor. |
|
1494 |
||
57333 | 1495 |
Unknown words are underlined in the text, using @{system_option_ref |
57328 | 1496 |
spell_checker_color} (blue by default). This is not an error, but a hint to |
57335 | 1497 |
the user that some action may be taken. The jEdit context menu provides |
1498 |
various actions, as far as applicable: |
|
57328 | 1499 |
|
61415 | 1500 |
\<^medskip> |
57328 | 1501 |
\begin{tabular}{l} |
57329 | 1502 |
@{action_ref "isabelle.complete-word"} \\ |
1503 |
@{action_ref "isabelle.exclude-word"} \\ |
|
1504 |
@{action_ref "isabelle.exclude-word-permanently"} \\ |
|
1505 |
@{action_ref "isabelle.include-word"} \\ |
|
1506 |
@{action_ref "isabelle.include-word-permanently"} \\ |
|
57328 | 1507 |
\end{tabular} |
61415 | 1508 |
\<^medskip> |
57328 | 1509 |
|
57329 | 1510 |
Instead of the specific @{action_ref "isabelle.complete-word"}, it is also |
1511 |
possible to use the generic @{action_ref "isabelle.complete"} with its |
|
61503 | 1512 |
default keyboard shortcut \<^verbatim>\<open>C+b\<close>. |
57328 | 1513 |
|
61415 | 1514 |
\<^medskip> |
61574 | 1515 |
Dictionary lookup uses some educated guesses about lower-case, upper-case, |
1516 |
and capitalized words. This is oriented on common use in English, where this |
|
62250 | 1517 |
aspect is not decisive for proper spelling (in contrast to German, for |
1518 |
example). |
|
58618 | 1519 |
\<close> |
57328 | 1520 |
|
1521 |
||
58618 | 1522 |
subsection \<open>Semantic completion context \label{sec:completion-context}\<close> |
57325 | 1523 |
|
58618 | 1524 |
text \<open> |
57325 | 1525 |
Completion depends on a semantic context that is provided by the prover, |
1526 |
although with some delay, because at least a full PIDE protocol round-trip |
|
1527 |
is required. Until that information becomes available in the PIDE |
|
1528 |
document-model, the default context is given by the outer syntax of the |
|
1529 |
editor mode (see also \secref{sec:buffer-node}). |
|
1530 |
||
61477 | 1531 |
The semantic \<^emph>\<open>language context\<close> provides information about nested |
62250 | 1532 |
sub-languages of Isabelle: keywords are only completed for outer syntax, and |
1533 |
antiquotations for languages that support them. Symbol abbreviations only |
|
1534 |
work for specific sub-languages: e.g.\ ``\<^verbatim>\<open>=>\<close>'' is \<^emph>\<open>not\<close> completed in |
|
1535 |
regular ML source, but is completed within ML strings, comments, |
|
1536 |
antiquotations. Backslash representations of symbols like ``\<^verbatim>\<open>\foobar\<close>'' or |
|
1537 |
``\<^verbatim>\<open>\<foobar>\<close>'' work in any context --- after additional confirmation. |
|
57325 | 1538 |
|
61574 | 1539 |
The prover may produce \<^emph>\<open>no completion\<close> markup in exceptional situations, to |
1540 |
tell that some language keywords should be excluded from further completion |
|
62250 | 1541 |
attempts. For example, ``\<^verbatim>\<open>:\<close>'' within accepted Isar syntax looses its |
1542 |
meaning as abbreviation for symbol ``\<open>\<in>\<close>''. |
|
58618 | 1543 |
\<close> |
57325 | 1544 |
|
1545 |
||
58618 | 1546 |
subsection \<open>Input events \label{sec:completion-input}\<close> |
57324 | 1547 |
|
58618 | 1548 |
text \<open> |
57332 | 1549 |
Completion is triggered by certain events produced by the user, with |
1550 |
optional delay after keyboard input according to @{system_option |
|
1551 |
jedit_completion_delay}. |
|
57325 | 1552 |
|
61574 | 1553 |
\<^descr>[Explicit completion] works via action @{action_ref "isabelle.complete"} |
1554 |
with keyboard shortcut \<^verbatim>\<open>C+b\<close>. This overrides the shortcut for @{action_ref |
|
1555 |
"complete-word"} in jEdit, but it is possible to restore the original jEdit |
|
1556 |
keyboard mapping of @{action "complete-word"} via \<^emph>\<open>Global Options~/ |
|
1557 |
Shortcuts\<close> and invent a different one for @{action "isabelle.complete"}. |
|
57325 | 1558 |
|
61439 | 1559 |
\<^descr>[Explicit spell-checker completion] works via @{action_ref |
57332 | 1560 |
"isabelle.complete-word"}, which is exposed in the jEdit context menu, if |
1561 |
the mouse points to a word that the spell-checker can complete. |
|
1562 |
||
61574 | 1563 |
\<^descr>[Implicit completion] works via regular keyboard input of the editor. It |
1564 |
depends on further side-conditions: |
|
57325 | 1565 |
|
61574 | 1566 |
\<^enum> The system option @{system_option_ref jedit_completion} needs to be |
1567 |
enabled (default). |
|
57325 | 1568 |
|
61574 | 1569 |
\<^enum> Completion of syntax keywords requires at least 3 relevant characters in |
1570 |
the text. |
|
57325 | 1571 |
|
61574 | 1572 |
\<^enum> The system option @{system_option_ref jedit_completion_delay} determines |
1573 |
an additional delay (0.5 by default), before opening a completion popup. |
|
1574 |
The delay gives the prover a chance to provide semantic completion |
|
61458 | 1575 |
information, notably the context (\secref{sec:completion-context}). |
57325 | 1576 |
|
61458 | 1577 |
\<^enum> The system option @{system_option_ref jedit_completion_immediate} |
1578 |
(enabled by default) controls whether replacement text should be inserted |
|
1579 |
immediately without popup, regardless of @{system_option |
|
61574 | 1580 |
jedit_completion_delay}. This aggressive mode of completion is restricted |
62250 | 1581 |
to symbol abbreviations that are not plain words (\secref{sec:symbols}). |
57325 | 1582 |
|
61574 | 1583 |
\<^enum> Completion of symbol abbreviations with only one relevant character in |
1584 |
the text always enforces an explicit popup, regardless of |
|
1585 |
@{system_option_ref jedit_completion_immediate}. |
|
58618 | 1586 |
\<close> |
57324 | 1587 |
|
1588 |
||
58618 | 1589 |
subsection \<open>Completion popup \label{sec:completion-popup}\<close> |
57324 | 1590 |
|
58618 | 1591 |
text \<open> |
61574 | 1592 |
A \<^emph>\<open>completion popup\<close> is a minimally invasive GUI component over the text |
1593 |
area that offers a selection of completion items to be inserted into the |
|
1594 |
text, e.g.\ by mouse clicks. Items are sorted dynamically, according to the |
|
1595 |
frequency of selection, with persistent history. The popup may interpret |
|
1596 |
special keys \<^verbatim>\<open>ENTER\<close>, \<^verbatim>\<open>TAB\<close>, \<^verbatim>\<open>ESCAPE\<close>, \<^verbatim>\<open>UP\<close>, \<^verbatim>\<open>DOWN\<close>, \<^verbatim>\<open>PAGE_UP\<close>, |
|
1597 |
\<^verbatim>\<open>PAGE_DOWN\<close>, but all other key events are passed to the underlying text |
|
1598 |
area. This allows to ignore unwanted completions most of the time and |
|
1599 |
continue typing quickly. Thus the popup serves as a mechanism of |
|
62250 | 1600 |
confirmation of proposed items, while the default is to continue without |
61574 | 1601 |
completion. |
57324 | 1602 |
|
1603 |
The meaning of special keys is as follows: |
|
1604 |
||
61415 | 1605 |
\<^medskip> |
57324 | 1606 |
\begin{tabular}{ll} |
61477 | 1607 |
\<^bold>\<open>key\<close> & \<^bold>\<open>action\<close> \\\hline |
61503 | 1608 |
\<^verbatim>\<open>ENTER\<close> & select completion (if @{system_option jedit_completion_select_enter}) \\ |
1609 |
\<^verbatim>\<open>TAB\<close> & select completion (if @{system_option jedit_completion_select_tab}) \\ |
|
1610 |
\<^verbatim>\<open>ESCAPE\<close> & dismiss popup \\ |
|
1611 |
\<^verbatim>\<open>UP\<close> & move up one item \\ |
|
1612 |
\<^verbatim>\<open>DOWN\<close> & move down one item \\ |
|
1613 |
\<^verbatim>\<open>PAGE_UP\<close> & move up one page of items \\ |
|
1614 |
\<^verbatim>\<open>PAGE_DOWN\<close> & move down one page of items \\ |
|
57324 | 1615 |
\end{tabular} |
61415 | 1616 |
\<^medskip> |
57324 | 1617 |
|
61574 | 1618 |
Movement within the popup is only active for multiple items. Otherwise the |
1619 |
corresponding key event retains its standard meaning within the underlying |
|
1620 |
text area. |
|
58618 | 1621 |
\<close> |
57324 | 1622 |
|
1623 |
||
58618 | 1624 |
subsection \<open>Insertion \label{sec:completion-insert}\<close> |
57324 | 1625 |
|
58618 | 1626 |
text \<open> |
57333 | 1627 |
Completion may first propose replacements to be selected (via a popup), or |
1628 |
replace text immediately in certain situations and depending on certain |
|
1629 |
options like @{system_option jedit_completion_immediate}. In any case, |
|
57420 | 1630 |
insertion works uniformly, by imitating normal jEdit text insertion, |
61477 | 1631 |
depending on the state of the \<^emph>\<open>text selection\<close>. Isabelle/jEdit tries to |
57420 | 1632 |
accommodate the most common forms of advanced selections in jEdit, but not |
1633 |
all combinations make sense. At least the following important cases are |
|
1634 |
well-defined: |
|
57333 | 1635 |
|
61574 | 1636 |
\<^descr>[No selection.] The original is removed and the replacement inserted, |
1637 |
depending on the caret position. |
|
57324 | 1638 |
|
61574 | 1639 |
\<^descr>[Rectangular selection of zero width.] This special case is treated by |
1640 |
jEdit as ``tall caret'' and insertion of completion imitates its normal |
|
1641 |
behaviour: separate copies of the replacement are inserted for each line |
|
1642 |
of the selection. |
|
57333 | 1643 |
|
61574 | 1644 |
\<^descr>[Other rectangular selection or multiple selections.] Here the original |
1645 |
is removed and the replacement is inserted for each line (or segment) of |
|
1646 |
the selection. |
|
57333 | 1647 |
|
61574 | 1648 |
Support for multiple selections is particularly useful for \<^emph>\<open>HyperSearch\<close>: |
1649 |
clicking on one of the items in the \<^emph>\<open>HyperSearch Results\<close> window makes |
|
1650 |
jEdit select all its occurrences in the corresponding line of text. Then |
|
1651 |
explicit completion can be invoked via \<^verbatim>\<open>C+b\<close>, e.g.\ to replace occurrences |
|
1652 |
of \<^verbatim>\<open>-->\<close> by \<open>\<longrightarrow>\<close>. |
|
57333 | 1653 |
|
61415 | 1654 |
\<^medskip> |
61574 | 1655 |
Insertion works by removing and inserting pieces of text from the buffer. |
1656 |
This counts as one atomic operation on the jEdit history. Thus unintended |
|
1657 |
completions may be reverted by the regular @{action undo} action of jEdit. |
|
1658 |
According to normal jEdit policies, the recovered text after @{action undo} |
|
1659 |
is selected: \<^verbatim>\<open>ESCAPE\<close> is required to reset the selection and to continue |
|
1660 |
typing more text. |
|
58618 | 1661 |
\<close> |
57324 | 1662 |
|
1663 |
||
58618 | 1664 |
subsection \<open>Options \label{sec:completion-options}\<close> |
57324 | 1665 |
|
58618 | 1666 |
text \<open> |
57324 | 1667 |
This is a summary of Isabelle/Scala system options that are relevant for |
61574 | 1668 |
completion. They may be configured in \<^emph>\<open>Plugin Options~/ Isabelle~/ General\<close> |
1669 |
as usual. |
|
57332 | 1670 |
|
61415 | 1671 |
\<^item> @{system_option_def completion_limit} specifies the maximum number of |
60257 | 1672 |
items for various semantic completion operations (name-space entries etc.) |
57332 | 1673 |
|
61415 | 1674 |
\<^item> @{system_option_def jedit_completion} guards implicit completion via |
57335 | 1675 |
regular jEdit key events (\secref{sec:completion-input}): it allows to |
1676 |
disable implicit completion altogether. |
|
57324 | 1677 |
|
61574 | 1678 |
\<^item> @{system_option_def jedit_completion_select_enter} and @{system_option_def |
1679 |
jedit_completion_select_tab} enable keys to select a completion item from |
|
1680 |
the popup (\secref{sec:completion-popup}). Note that a regular mouse click |
|
1681 |
on the list of items is always possible. |
|
57833
2c2bae3da1c2
completion popup supports both ENTER and TAB (default);
wenzelm
parents:
57822
diff
changeset
|
1682 |
|
61415 | 1683 |
\<^item> @{system_option_def jedit_completion_context} specifies whether the |
57335 | 1684 |
language context provided by the prover should be used at all. Disabling |
1685 |
that option makes completion less ``semantic''. Note that incomplete or |
|
1686 |
severely broken input may cause some disagreement of the prover and the user |
|
1687 |
about the intended language context. |
|
57332 | 1688 |
|
61415 | 1689 |
\<^item> @{system_option_def jedit_completion_delay} and @{system_option_def |
57333 | 1690 |
jedit_completion_immediate} determine the handling of keyboard events for |
1691 |
implicit completion (\secref{sec:completion-input}). |
|
57332 | 1692 |
|
61574 | 1693 |
A @{system_option jedit_completion_delay}~\<^verbatim>\<open>> 0\<close> postpones the processing of |
1694 |
key events, until after the user has stopped typing for the given time span, |
|
62250 | 1695 |
but @{system_option jedit_completion_immediate}~\<^verbatim>\<open>= true\<close> means that |
61574 | 1696 |
abbreviations of Isabelle symbols are handled nonetheless. |
57332 | 1697 |
|
66158 | 1698 |
\<^item> @{system_option_def completion_path_ignore} specifies ``glob'' |
57335 | 1699 |
patterns to ignore in file-system path completion (separated by colons), |
1700 |
e.g.\ backup files ending with tilde. |
|
57332 | 1701 |
|
61574 | 1702 |
\<^item> @{system_option_def spell_checker} is a global guard for all spell-checker |
1703 |
operations: it allows to disable that mechanism altogether. |
|
57332 | 1704 |
|
61415 | 1705 |
\<^item> @{system_option_def spell_checker_dictionary} determines the current |
57335 | 1706 |
dictionary, taken from the colon-separated list in the settings variable |
57333 | 1707 |
@{setting_def JORTHO_DICTIONARIES}. There are jEdit actions to specify local |
1708 |
updates to a dictionary, by including or excluding words. The result of |
|
70109 | 1709 |
permanent dictionary updates is stored in the directory |
1710 |
\<^path>\<open>$ISABELLE_HOME_USER/dictionaries\<close>, in a separate file for each |
|
1711 |
dictionary. |
|
57332 | 1712 |
|
67395
b39d596b77ce
more accurate spell-checking for nested quotations / antiquotations, notably in formal comments;
wenzelm
parents:
67304
diff
changeset
|
1713 |
\<^item> @{system_option_def spell_checker_include} specifies a comma-separated |
61574 | 1714 |
list of markup elements that delimit words in the source that is subject to |
1715 |
spell-checking, including various forms of comments. |
|
67395
b39d596b77ce
more accurate spell-checking for nested quotations / antiquotations, notably in formal comments;
wenzelm
parents:
67304
diff
changeset
|
1716 |
|
b39d596b77ce
more accurate spell-checking for nested quotations / antiquotations, notably in formal comments;
wenzelm
parents:
67304
diff
changeset
|
1717 |
\<^item> @{system_option_def spell_checker_exclude} specifies a comma-separated |
b39d596b77ce
more accurate spell-checking for nested quotations / antiquotations, notably in formal comments;
wenzelm
parents:
67304
diff
changeset
|
1718 |
list of markup elements that disable spell-checking (e.g.\ in nested |
b39d596b77ce
more accurate spell-checking for nested quotations / antiquotations, notably in formal comments;
wenzelm
parents:
67304
diff
changeset
|
1719 |
antiquotations). |
58618 | 1720 |
\<close> |
54361 | 1721 |
|
1722 |
||
58618 | 1723 |
section \<open>Automatically tried tools \label{sec:auto-tools}\<close> |
54353 | 1724 |
|
58618 | 1725 |
text \<open> |
57325 | 1726 |
Continuous document processing works asynchronously in the background. |
1727 |
Visible document source that has been evaluated may get augmented by |
|
62251 | 1728 |
additional results of \<^emph>\<open>asynchronous print functions\<close>. An example for that |
1729 |
is proof state output, if that is enabled in the Output panel |
|
1730 |
(\secref{sec:output}). More heavy-weight print functions may be applied as |
|
1731 |
well, e.g.\ to prove or disprove parts of the formal text by other means. |
|
54354 | 1732 |
|
61574 | 1733 |
Isabelle/HOL provides various automatically tried tools that operate on |
1734 |
outermost goal statements (e.g.\ @{command lemma}, @{command theorem}), |
|
1735 |
independently of the state of the current proof attempt. They work |
|
1736 |
implicitly without any arguments. Results are output as \<^emph>\<open>information |
|
1737 |
messages\<close>, which are indicated in the text area by blue squiggles and a blue |
|
1738 |
information sign in the gutter (see \figref{fig:auto-tools}). The message |
|
1739 |
content may be shown as for other output (see also \secref{sec:output}). |
|
1740 |
Some tools produce output with \<^emph>\<open>sendback\<close> markup, which means that clicking |
|
62251 | 1741 |
on certain parts of the text inserts that into the source in the proper |
1742 |
place. |
|
54356 | 1743 |
|
62183 | 1744 |
\begin{figure}[!htb] |
54356 | 1745 |
\begin{center} |
70251 | 1746 |
\includegraphics[scale=0.333]{auto-tools} |
54356 | 1747 |
\end{center} |
57312 | 1748 |
\caption{Result of automatically tried tools} |
54356 | 1749 |
\label{fig:auto-tools} |
1750 |
\end{figure} |
|
54354 | 1751 |
|
61415 | 1752 |
\<^medskip> |
61574 | 1753 |
The following Isabelle system options control the behavior of automatically |
1754 |
tried tools (see also the jEdit dialog window \<^emph>\<open>Plugin Options~/ Isabelle~/ |
|
1755 |
General~/ Automatically tried tools\<close>): |
|
54354 | 1756 |
|
61574 | 1757 |
\<^item> @{system_option_ref auto_methods} controls automatic use of a combination |
1758 |
of standard proof methods (@{method auto}, @{method simp}, @{method blast}, |
|
1759 |
etc.). This corresponds to the Isar command @{command_ref "try0"} @{cite |
|
1760 |
"isabelle-isar-ref"}. |
|
54354 | 1761 |
|
1762 |
The tool is disabled by default, since unparameterized invocation of |
|
61574 | 1763 |
standard proof methods often consumes substantial CPU resources without |
1764 |
leading to success. |
|
54354 | 1765 |
|
61574 | 1766 |
\<^item> @{system_option_ref auto_nitpick} controls a slightly reduced version of |
1767 |
@{command_ref nitpick}, which tests for counterexamples using first-order |
|
1768 |
relational logic. See also the Nitpick manual @{cite "isabelle-nitpick"}. |
|
54354 | 1769 |
|
61574 | 1770 |
This tool is disabled by default, due to the extra overhead of invoking an |
1771 |
external Java process for each attempt to disprove a subgoal. |
|
54354 | 1772 |
|
61415 | 1773 |
\<^item> @{system_option_ref auto_quickcheck} controls automatic use of |
61574 | 1774 |
@{command_ref quickcheck}, which tests for counterexamples using a series of |
1775 |
assignments for free variables of a subgoal. |
|
54354 | 1776 |
|
61574 | 1777 |
This tool is \<^emph>\<open>enabled\<close> by default. It requires little overhead, but is a |
1778 |
bit weaker than @{command nitpick}. |
|
54354 | 1779 |
|
61574 | 1780 |
\<^item> @{system_option_ref auto_sledgehammer} controls a significantly reduced |
1781 |
version of @{command_ref sledgehammer}, which attempts to prove a subgoal |
|
1782 |
using external automatic provers. See also the Sledgehammer manual @{cite |
|
1783 |
"isabelle-sledgehammer"}. |
|
54354 | 1784 |
|
61574 | 1785 |
This tool is disabled by default, due to the relatively heavy nature of |
1786 |
Sledgehammer. |
|
54354 | 1787 |
|
61415 | 1788 |
\<^item> @{system_option_ref auto_solve_direct} controls automatic use of |
61574 | 1789 |
@{command_ref solve_direct}, which checks whether the current subgoals can |
1790 |
be solved directly by an existing theorem. This also helps to detect |
|
1791 |
duplicate lemmas. |
|
54354 | 1792 |
|
61477 | 1793 |
This tool is \<^emph>\<open>enabled\<close> by default. |
54354 | 1794 |
|
1795 |
||
61574 | 1796 |
Invocation of automatically tried tools is subject to some global policies |
1797 |
of parallel execution, which may be configured as follows: |
|
54354 | 1798 |
|
61574 | 1799 |
\<^item> @{system_option_ref auto_time_limit} (default 2.0) determines the timeout |
1800 |
(in seconds) for each tool execution. |
|
54354 | 1801 |
|
61574 | 1802 |
\<^item> @{system_option_ref auto_time_start} (default 1.0) determines the start |
1803 |
delay (in seconds) for automatically tried tools, after the main command |
|
1804 |
evaluation is finished. |
|
54354 | 1805 |
|
1806 |
||
61574 | 1807 |
Each tool is submitted independently to the pool of parallel execution tasks |
1808 |
in Isabelle/ML, using hardwired priorities according to its relative |
|
1809 |
``heaviness''. The main stages of evaluation and printing of proof states |
|
1810 |
take precedence, but an already running tool is not canceled and may thus |
|
1811 |
reduce reactivity of proof document processing. |
|
54354 | 1812 |
|
61574 | 1813 |
Users should experiment how the available CPU resources (number of cores) |
1814 |
are best invested to get additional feedback from prover in the background, |
|
1815 |
by using a selection of weaker or stronger tools. |
|
58618 | 1816 |
\<close> |
54353 | 1817 |
|
1818 |
||
58618 | 1819 |
section \<open>Sledgehammer \label{sec:sledgehammer}\<close> |
54353 | 1820 |
|
61574 | 1821 |
text \<open> |
1822 |
The \<^emph>\<open>Sledgehammer\<close> panel (\figref{fig:sledgehammer}) provides a view on |
|
1823 |
some independent execution of the Isar command @{command_ref sledgehammer}, |
|
1824 |
with process indicator (spinning wheel) and GUI elements for important |
|
1825 |
Sledgehammer arguments and options. Any number of Sledgehammer panels may be |
|
1826 |
active, according to the standard policies of Dockable Window Management in |
|
1827 |
jEdit. Closing such windows also cancels the corresponding prover tasks. |
|
54356 | 1828 |
|
62183 | 1829 |
\begin{figure}[!htb] |
54356 | 1830 |
\begin{center} |
57312 | 1831 |
\includegraphics[scale=0.333]{sledgehammer} |
54356 | 1832 |
\end{center} |
1833 |
\caption{An instance of the Sledgehammer panel} |
|
1834 |
\label{fig:sledgehammer} |
|
1835 |
\end{figure} |
|
54355 | 1836 |
|
61574 | 1837 |
The \<^emph>\<open>Apply\<close> button attaches a fresh invocation of @{command sledgehammer} |
1838 |
to the command where the cursor is pointing in the text --- this should be |
|
1839 |
some pending proof problem. Further buttons like \<^emph>\<open>Cancel\<close> and \<^emph>\<open>Locate\<close> |
|
1840 |
help to manage the running process. |
|
54355 | 1841 |
|
61574 | 1842 |
Results appear incrementally in the output window of the panel. Proposed |
1843 |
proof snippets are marked-up as \<^emph>\<open>sendback\<close>, which means a single mouse |
|
1844 |
click inserts the text into a suitable place of the original source. Some |
|
1845 |
manual editing may be required nonetheless, say to remove earlier proof |
|
1846 |
attempts. |
|
1847 |
\<close> |
|
54353 | 1848 |
|
1849 |
||
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1850 |
chapter \<open>Isabelle document preparation\<close> |
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1851 |
|
61574 | 1852 |
text \<open> |
1853 |
The ultimate purpose of Isabelle is to produce nicely rendered documents |
|
60255
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|
1854 |
with the Isabelle document preparation system, which is based on {\LaTeX}; |
60270 | 1855 |
see also @{cite "isabelle-system" and "isabelle-isar-ref"}. Isabelle/jEdit |
61574 | 1856 |
provides some additional support for document editing. |
1857 |
\<close> |
|
60255
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|
1858 |
|
0466bd194d74
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|
1859 |
|
0466bd194d74
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|
1860 |
section \<open>Document outline\<close> |
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|
1861 |
|
61574 | 1862 |
text \<open> |
1863 |
Theory sources may contain document markup commands, such as @{command_ref |
|
1864 |
chapter}, @{command_ref section}, @{command subsection}. The Isabelle |
|
1865 |
SideKick parser (\secref{sec:sidekick}) represents this document outline as |
|
1866 |
structured tree view, with formal statements and proofs nested inside; see |
|
1867 |
\figref{fig:sidekick-document}. |
|
60255
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1868 |
|
62183 | 1869 |
\begin{figure}[!htb] |
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1870 |
\begin{center} |
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1871 |
\includegraphics[scale=0.333]{sidekick-document} |
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|
1872 |
\end{center} |
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|
1873 |
\caption{Isabelle document outline via SideKick tree view} |
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1874 |
\label{fig:sidekick-document} |
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|
1875 |
\end{figure} |
60264 | 1876 |
|
1877 |
It is also possible to use text folding according to this structure, by |
|
61574 | 1878 |
adjusting \<^emph>\<open>Utilities / Buffer Options / Folding mode\<close> of jEdit. The default |
1879 |
mode \<^verbatim>\<open>isabelle\<close> uses the structure of formal definitions, statements, and |
|
1880 |
proofs. The alternative mode \<^verbatim>\<open>sidekick\<close> uses the document structure of the |
|
1881 |
SideKick parser, as explained above. |
|
1882 |
\<close> |
|
60264 | 1883 |
|
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|
1884 |
|
62154 | 1885 |
section \<open>Markdown structure\<close> |
1886 |
||
1887 |
text \<open> |
|
62251 | 1888 |
Document text is internally structured in paragraphs and nested lists, using |
70252 | 1889 |
notation that is similar to Markdown\<^footnote>\<open>\<^url>\<open>https://commonmark.org\<close>\<close>. There are |
63680 | 1890 |
special control symbols for items of different kinds of lists, corresponding |
1891 |
to \<^verbatim>\<open>itemize\<close>, \<^verbatim>\<open>enumerate\<close>, \<^verbatim>\<open>description\<close> in {\LaTeX}. This is illustrated |
|
1892 |
in for \<^verbatim>\<open>itemize\<close> in \figref{fig:markdown-document}. |
|
62154 | 1893 |
|
62183 | 1894 |
\begin{figure}[!htb] |
62154 | 1895 |
\begin{center} |
1896 |
\includegraphics[scale=0.333]{markdown-document} |
|
1897 |
\end{center} |
|
1898 |
\caption{Markdown structure within document text} |
|
1899 |
\label{fig:markdown-document} |
|
1900 |
\end{figure} |
|
62251 | 1901 |
|
1902 |
Items take colour according to the depth of nested lists. This helps to |
|
1903 |
explore the implicit rules for list structure interactively. There is also |
|
70252 | 1904 |
markup for individual items and paragraphs in the text: it may be explored |
1905 |
via mouse hovering with \<^verbatim>\<open>CONTROL\<close> / \<^verbatim>\<open>COMMAND\<close> as usual |
|
62251 | 1906 |
(\secref{sec:tooltips-hyperlinks}). |
62154 | 1907 |
\<close> |
1908 |
||
1909 |
||
62184 | 1910 |
section \<open>Citations and Bib{\TeX} entries \label{sec:bibtex}\<close> |
60255
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|
1911 |
|
61574 | 1912 |
text \<open> |
1913 |
Citations are managed by {\LaTeX} and Bib{\TeX} in \<^verbatim>\<open>.bib\<close> files. The |
|
1914 |
Isabelle session build process and the @{tool latex} tool @{cite |
|
60270 | 1915 |
"isabelle-system"} are smart enough to assemble the result, based on the |
60257 | 1916 |
session directory layout. |
60255
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1917 |
|
61493 | 1918 |
The document antiquotation \<open>@{cite}\<close> is described in @{cite |
60255
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|
1919 |
"isabelle-isar-ref"}. Within the Prover IDE it provides semantic markup for |
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|
1920 |
tooltips, hyperlinks, and completion for Bib{\TeX} database entries. |
61574 | 1921 |
Isabelle/jEdit does \<^emph>\<open>not\<close> know about the actual Bib{\TeX} environment used |
1922 |
in {\LaTeX} batch-mode, but it can take citations from those \<^verbatim>\<open>.bib\<close> files |
|
1923 |
that happen to be open in the editor; see \figref{fig:cite-completion}. |
|
60255
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|
1924 |
|
62183 | 1925 |
\begin{figure}[!htb] |
60255
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|
1926 |
\begin{center} |
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1927 |
\includegraphics[scale=0.333]{cite-completion} |
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|
1928 |
\end{center} |
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1929 |
\caption{Semantic completion of citations from open Bib{\TeX} files} |
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1930 |
\label{fig:cite-completion} |
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1931 |
\end{figure} |
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1932 |
|
68736 | 1933 |
Isabelle/jEdit also provides IDE support for editing \<^verbatim>\<open>.bib\<close> files |
61574 | 1934 |
themselves. There is syntax highlighting based on entry types (according to |
1935 |
standard Bib{\TeX} styles), a context-menu to compose entries |
|
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1936 |
systematically, and a SideKick tree view of the overall content; see |
68736 | 1937 |
\figref{fig:bibtex-mode}. Semantic checking with errors and warnings is |
1938 |
performed by the original \<^verbatim>\<open>bibtex\<close> tool using style \<^verbatim>\<open>plain\<close>: different |
|
1939 |
Bib{\TeX} styles may produce slightly different results. |
|
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|
1940 |
|
62183 | 1941 |
\begin{figure}[!htb] |
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1942 |
\begin{center} |
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1943 |
\includegraphics[scale=0.333]{bibtex-mode} |
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|
1944 |
\end{center} |
68737 | 1945 |
\caption{Bib{\TeX} mode with context menu, SideKick tree view, and |
1946 |
semantic output from the \<^verbatim>\<open>bibtex\<close> tool} |
|
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|
1947 |
\label{fig:bibtex-mode} |
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1948 |
\end{figure} |
68736 | 1949 |
|
1950 |
Regular document preview (\secref{sec:document-preview}) of \<^verbatim>\<open>.bib\<close> files |
|
1951 |
approximates the usual {\LaTeX} bibliography output in HTML (using style |
|
1952 |
\<^verbatim>\<open>unsort\<close>). |
|
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|
1953 |
\<close> |
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|
1954 |
|
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|
1955 |
|
70298 | 1956 |
section \<open>Document preview and printing \label{sec:document-preview}\<close> |
66683 | 1957 |
|
1958 |
text \<open> |
|
1959 |
The action @{action_def isabelle.preview} opens an HTML preview of the |
|
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1960 |
current document node in the default web browser. The content is derived |
66683 | 1961 |
from the semantic markup produced by the prover, and thus depends on the |
1962 |
status of formal processing. |
|
67262 | 1963 |
|
1964 |
Action @{action_def isabelle.draft} is similar to @{action |
|
1965 |
isabelle.preview}, but shows a plain-text document draft. |
|
70298 | 1966 |
|
1967 |
Both actions show document sources in a regular Web browser, which may be |
|
1968 |
also used to print the result in a more portable manner than the Java |
|
1969 |
printer dialog of the jEdit @{action_ref print} action. |
|
66683 | 1970 |
\<close> |
1971 |
||
1972 |
||
62253 | 1973 |
chapter \<open>ML debugging within the Prover IDE\<close> |
62154 | 1974 |
|
1975 |
text \<open> |
|
68224 | 1976 |
Isabelle/ML is based on Poly/ML\<^footnote>\<open>\<^url>\<open>https://www.polyml.org\<close>\<close> and thus |
62253 | 1977 |
benefits from the source-level debugger of that implementation of Standard |
1978 |
ML. The Prover IDE provides the \<^emph>\<open>Debugger\<close> dockable to connect to running |
|
1979 |
ML threads, inspect the stack frame with local ML bindings, and evaluate ML |
|
1980 |
expressions in a particular run-time context. A typical debugger session is |
|
1981 |
shown in \figref{fig:ml-debugger}. |
|
1982 |
||
1983 |
ML debugging depends on the following pre-requisites. |
|
1984 |
||
1985 |
\<^enum> ML source needs to be compiled with debugging enabled. This may be |
|
1986 |
controlled for particular chunks of ML sources using any of the subsequent |
|
1987 |
facilities. |
|
1988 |
||
1989 |
\<^enum> The system option @{system_option_ref ML_debugger} as implicit state |
|
1990 |
of the Isabelle process. It may be changed in the menu \<^emph>\<open>Plugins / |
|
1991 |
Plugin Options / Isabelle / General\<close>. ML modules need to be reloaded and |
|
1992 |
recompiled to pick up that option as intended. |
|
1993 |
||
1994 |
\<^enum> The configuration option @{attribute_ref ML_debugger}, with an |
|
1995 |
attribute of the same name, to update a global or local context (e.g.\ |
|
1996 |
with the @{command declare} command). |
|
1997 |
||
1998 |
\<^enum> Commands that modify @{attribute ML_debugger} state for individual |
|
1999 |
files: @{command_ref ML_file_debug}, @{command_ref ML_file_no_debug}, |
|
2000 |
@{command_ref SML_file_debug}, @{command_ref SML_file_no_debug}. |
|
2001 |
||
2002 |
The instrumentation of ML code for debugging causes minor run-time |
|
2003 |
overhead. ML modules that implement critical system infrastructure may |
|
2004 |
lead to deadlocks or other undefined behaviour, when put under debugger |
|
2005 |
control! |
|
2006 |
||
2007 |
\<^enum> The \<^emph>\<open>Debugger\<close> panel needs to be active, otherwise the program ignores |
|
2008 |
debugger instrumentation of the compiler and runs unmanaged. It is also |
|
2009 |
possible to start debugging with the panel open, and later undock it, to |
|
2010 |
let the program continue unhindered. |
|
2011 |
||
2012 |
\<^enum> The ML program needs to be stopped at a suitable breakpoint, which may |
|
2013 |
be activated individually or globally as follows. |
|
2014 |
||
2015 |
For ML sources that have been compiled with debugger support, the IDE |
|
2016 |
visualizes possible breakpoints in the text. A breakpoint may be toggled |
|
2017 |
by pointing accurately with the mouse, with a right-click to activate |
|
2018 |
jEdit's context menu and its \<^emph>\<open>Toggle Breakpoint\<close> item. Alternatively, the |
|
2019 |
\<^emph>\<open>Break\<close> checkbox in the \<^emph>\<open>Debugger\<close> panel may be enabled to stop ML |
|
2020 |
threads always at the next possible breakpoint. |
|
2021 |
||
2022 |
Note that the state of individual breakpoints \<^emph>\<open>gets lost\<close> when the |
|
2023 |
coresponding ML source is re-compiled! This may happen unintentionally, |
|
2024 |
e.g.\ when following hyperlinks into ML modules that have not been loaded |
|
2025 |
into the IDE before. |
|
62154 | 2026 |
|
62183 | 2027 |
\begin{figure}[!htb] |
62154 | 2028 |
\begin{center} |
2029 |
\includegraphics[scale=0.333]{ml-debugger} |
|
2030 |
\end{center} |
|
62253 | 2031 |
\caption{ML debugger session} |
62154 | 2032 |
\label{fig:ml-debugger} |
2033 |
\end{figure} |
|
62253 | 2034 |
|
2035 |
The debugger panel (\figref{fig:ml-debugger}) shows a list of all threads |
|
2036 |
that are presently stopped. Each thread shows a stack of all function |
|
2037 |
invocations that lead to the current breakpoint at the top. |
|
2038 |
||
2039 |
It is possible to jump between stack positions freely, by clicking on this |
|
2040 |
list. The current situation is displayed in the big output window, as a |
|
2041 |
local ML environment with names and printed values. |
|
2042 |
||
2043 |
ML expressions may be evaluated in the current context by entering snippets |
|
2044 |
of source into the text fields labeled \<open>Context\<close> and \<open>ML\<close>, and pushing the |
|
2045 |
\<open>Eval\<close> button. By default, the source is interpreted as Isabelle/ML with the |
|
2046 |
usual support for antiquotations (like @{command ML}, @{command ML_file}). |
|
2047 |
Alternatively, strict Standard ML may be enforced via the \<^emph>\<open>SML\<close> checkbox |
|
2048 |
(like @{command SML_file}). |
|
2049 |
||
2050 |
The context for Isabelle/ML is optional, it may evaluate to a value of type |
|
69597 | 2051 |
\<^ML_type>\<open>theory\<close>, \<^ML_type>\<open>Proof.context\<close>, or \<^ML_type>\<open>Context.generic\<close>. |
62253 | 2052 |
Thus the given ML expression (with its antiquotations) may be subject to the |
2053 |
intended dynamic run-time context, instead of the static compile-time |
|
2054 |
context. |
|
2055 |
||
2056 |
\<^medskip> |
|
2057 |
The buttons labeled \<^emph>\<open>Continue\<close>, \<^emph>\<open>Step\<close>, \<^emph>\<open>Step over\<close>, \<^emph>\<open>Step out\<close> |
|
2058 |
recommence execution of the program, with different policies concerning |
|
2059 |
nested function invocations. The debugger always moves the cursor within the |
|
2060 |
ML source to the next breakpoint position, and offers new stack frames as |
|
2061 |
before. |
|
62154 | 2062 |
\<close> |
2063 |
||
2064 |
||
58618 | 2065 |
chapter \<open>Miscellaneous tools\<close> |
54358 | 2066 |
|
72150 | 2067 |
section \<open>Timing and monitoring\<close> |
54359 | 2068 |
|
61574 | 2069 |
text \<open> |
2070 |
Managed evaluation of commands within PIDE documents includes timing |
|
2071 |
information, which consists of elapsed (wall-clock) time, CPU time, and GC |
|
2072 |
(garbage collection) time. Note that in a multithreaded system it is |
|
2073 |
difficult to measure execution time precisely: elapsed time is closer to the |
|
2074 |
real requirements of runtime resources than CPU or GC time, which are both |
|
2075 |
subject to influences from the parallel environment that are outside the |
|
2076 |
scope of the current command transaction. |
|
54359 | 2077 |
|
61574 | 2078 |
The \<^emph>\<open>Timing\<close> panel provides an overview of cumulative command timings for |
2079 |
each document node. Commands with elapsed time below the given threshold are |
|
2080 |
ignored in the grand total. Nodes are sorted according to their overall |
|
2081 |
timing. For the document node that corresponds to the current buffer, |
|
2082 |
individual command timings are shown as well. A double-click on a theory |
|
2083 |
node or command moves the editor focus to that particular source position. |
|
54359 | 2084 |
|
61574 | 2085 |
It is also possible to reveal individual timing information via some tooltip |
2086 |
for the corresponding command keyword, using the technique of mouse hovering |
|
62251 | 2087 |
with \<^verbatim>\<open>CONTROL\<close>~/ \<^verbatim>\<open>COMMAND\<close> modifier (\secref{sec:tooltips-hyperlinks}). |
2088 |
Actual display of timing depends on the global option @{system_option_ref |
|
2089 |
jedit_timing_threshold}, which can be configured in \<^emph>\<open>Plugin Options~/ |
|
2090 |
Isabelle~/ General\<close>. |
|
54360 | 2091 |
|
61415 | 2092 |
\<^medskip> |
72251 | 2093 |
The jEdit status line includes a monitor widget for the current heap usage |
2094 |
of the Isabelle/ML process; this includes information about ongoing garbage |
|
2095 |
collection (shown as ``ML cleanup''). A double-click opens a new instance of |
|
2096 |
the \<^emph>\<open>Monitor\<close> panel, as explained below. There is a similar widget for the |
|
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2097 |
JVM: a double-click opens an external Java monitor process with detailed |
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|
2098 |
information and controls for the Java process underlying |
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|
2099 |
Isabelle/Scala/jEdit (this is based on \<^verbatim>\<open>jconsole\<close>). |
72150 | 2100 |
|
2101 |
\<^medskip> |
|
61574 | 2102 |
The \<^emph>\<open>Monitor\<close> panel visualizes various data collections about recent |
72150 | 2103 |
activity of the runtime system of Isabelle/ML and Java. There are buttons to |
2104 |
request a full garbage collection and sharing of live data on the ML heap. |
|
61574 | 2105 |
The display is continuously updated according to @{system_option_ref |
57869 | 2106 |
editor_chart_delay}. Note that the painting of the chart takes considerable |
2107 |
runtime itself --- on the Java Virtual Machine that runs Isabelle/Scala, not |
|
72150 | 2108 |
Isabelle/ML. |
61503 | 2109 |
\<close> |
54359 | 2110 |
|
2111 |
||
58618 | 2112 |
section \<open>Low-level output\<close> |
54358 | 2113 |
|
61574 | 2114 |
text \<open> |
62251 | 2115 |
Prover output is normally shown directly in the main text area or specific |
2116 |
panels like \<^emph>\<open>Output\<close> (\secref{sec:output}) or \<^emph>\<open>State\<close> |
|
2117 |
(\secref{sec:state-output}). Beyond this, it is occasionally useful to |
|
2118 |
inspect low-level output channels via some of the following additional |
|
2119 |
panels: |
|
54358 | 2120 |
|
61574 | 2121 |
\<^item> \<^emph>\<open>Protocol\<close> shows internal messages between the Isabelle/Scala and |
2122 |
Isabelle/ML side of the PIDE document editing protocol. Recording of |
|
2123 |
messages starts with the first activation of the corresponding dockable |
|
2124 |
window; earlier messages are lost. |
|
54358 | 2125 |
|
70252 | 2126 |
Display of protocol messages causes considerable slowdown, so it is |
61574 | 2127 |
important to undock all \<^emph>\<open>Protocol\<close> panels for production work. |
54358 | 2128 |
|
61503 | 2129 |
\<^item> \<^emph>\<open>Raw Output\<close> shows chunks of text from the \<^verbatim>\<open>stdout\<close> and \<^verbatim>\<open>stderr\<close> |
61574 | 2130 |
channels of the prover process. Recording of output starts with the first |
2131 |
activation of the corresponding dockable window; earlier output is lost. |
|
54358 | 2132 |
|
61574 | 2133 |
The implicit stateful nature of physical I/O channels makes it difficult to |
2134 |
relate raw output to the actual command from where it was originating. |
|
2135 |
Parallel execution may add to the confusion. Peeking at physical process I/O |
|
2136 |
is only the last resort to diagnose problems with tools that are not PIDE |
|
2137 |
compliant. |
|
54358 | 2138 |
|
57310 | 2139 |
Under normal circumstances, prover output always works via managed message |
70109 | 2140 |
channels (corresponding to \<^ML>\<open>writeln\<close>, \<^ML>\<open>warning\<close>, |
2141 |
\<^ML>\<open>Output.error_message\<close> in Isabelle/ML), which are displayed by regular |
|
2142 |
means within the document model (\secref{sec:output}). Unhandled Isabelle/ML |
|
69597 | 2143 |
exceptions are printed by the system via \<^ML>\<open>Output.error_message\<close>. |
54358 | 2144 |
|
61477 | 2145 |
\<^item> \<^emph>\<open>Syslog\<close> shows system messages that might be relevant to diagnose |
60257 | 2146 |
problems with the startup or shutdown phase of the prover process; this also |
70109 | 2147 |
includes raw output on \<^verbatim>\<open>stderr\<close>. Isabelle/ML also provides an explicit |
2148 |
\<^ML>\<open>Output.system_message\<close> operation, which is occasionally useful for |
|
61574 | 2149 |
diagnostic purposes within the system infrastructure itself. |
54358 | 2150 |
|
61574 | 2151 |
A limited amount of syslog messages are buffered, independently of the |
2152 |
docking state of the \<^emph>\<open>Syslog\<close> panel. This allows to diagnose serious |
|
2153 |
problems with Isabelle/PIDE process management, outside of the actual |
|
2154 |
protocol layer. |
|
54358 | 2155 |
|
61574 | 2156 |
Under normal situations, such low-level system output can be ignored. |
58618 | 2157 |
\<close> |
54358 | 2158 |
|
2159 |
||
58618 | 2160 |
chapter \<open>Known problems and workarounds \label{sec:problems}\<close> |
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|
58618 | 2162 |
text \<open> |
61574 | 2163 |
\<^item> \<^bold>\<open>Problem:\<close> Keyboard shortcuts \<^verbatim>\<open>C+PLUS\<close> and \<^verbatim>\<open>C+MINUS\<close> for adjusting the |
2164 |
editor font size depend on platform details and national keyboards. |
|
2165 |
||
2166 |
\<^bold>\<open>Workaround:\<close> Rebind keys via \<^emph>\<open>Global Options~/ Shortcuts\<close>. |
|
54330 | 2167 |
|
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|
2168 |
\<^item> \<^bold>\<open>Problem:\<close> The macOS key sequence \<^verbatim>\<open>COMMAND+COMMA\<close> for application |
61574 | 2169 |
\<^emph>\<open>Preferences\<close> is in conflict with the jEdit default keyboard shortcut for |
2170 |
\<^emph>\<open>Incremental Search Bar\<close> (action @{action_ref "quick-search"}). |
|
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|
70256 | 2172 |
\<^bold>\<open>Workaround:\<close> Rebind key via \<^emph>\<open>Global Options~/ Shortcuts\<close> according to the |
2173 |
national keyboard layout, e.g.\ \<^verbatim>\<open>COMMAND+SLASH\<close> on English ones. |
|
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|
2174 |
|
73121 | 2175 |
\<^item> \<^bold>\<open>Problem:\<close> On macOS Big Sur full-screen mode causes problems with dialog windows |
2176 |
(e.g. \<^emph>\<open>Search and Replace\<close> or \<^emph>\<open>Hypersearch Results\<close>). |
|
2177 |
||
2178 |
\<^bold>\<open>Workaround:\<close> Go to \<^emph>\<open>System Preferences / General\<close> and change the default |
|
2179 |
``\<^emph>\<open>Prefer tabs: \<^bold>\<open>in full screen\<close> when opening documents\<close>'' to |
|
2180 |
``\<^emph>\<open>\<^bold>\<open>never\<close>\<close>''. |
|
2181 |
||
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|
2182 |
\<^item> \<^bold>\<open>Problem:\<close> On macOS with native Apple look-and-feel, some exotic |
61522
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|
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national keyboards may cause a conflict of menu accelerator keys with |
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|
2184 |
regular jEdit key bindings. This leads to duplicate execution of the |
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|
2185 |
corresponding jEdit action. |
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|
2186 |
|
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|
2187 |
\<^bold>\<open>Workaround:\<close> Disable the native Apple menu bar via Java runtime option |
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|
2188 |
\<^verbatim>\<open>-Dapple.laf.useScreenMenuBar=false\<close>. |
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|
2189 |
|
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|
2190 |
\<^item> \<^bold>\<open>Problem:\<close> macOS system fonts sometimes lead to character drop-outs in |
61574 | 2191 |
the main text area. |
54349 | 2192 |
|
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use "Isabelle DejaVu" fonts uniformly: Text Area, GUI elements, HTML output etc.;
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|
2193 |
\<^bold>\<open>Workaround:\<close> Use the default \<^verbatim>\<open>Isabelle DejaVu\<close> fonts. |
62265 | 2194 |
|
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|
2195 |
\<^item> \<^bold>\<open>Problem:\<close> On macOS the Java printer dialog sometimes does not work. |
70298 | 2196 |
|
2197 |
\<^bold>\<open>Workaround:\<close> Use action @{action isabelle.draft} and print via the Web |
|
2198 |
browser. |
|
2199 |
||
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|
2200 |
\<^item> \<^bold>\<open>Problem:\<close> Antialiased text rendering may show bad performance or bad |
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|
2201 |
visual quality, notably on Linux/X11. |
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|
2202 |
|
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|
2203 |
\<^bold>\<open>Workaround:\<close> The property \<^verbatim>\<open>view.antiAlias\<close> (via menu item Utilities / |
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|
2204 |
Global Options / Text Area / Anti Aliased smooth text) has the main impact |
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|
2205 |
on text rendering, but some related properties may also change the |
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|
2206 |
behaviour. The default is \<^verbatim>\<open>view.antiAlias=subpixel HRGB\<close>: it can be much |
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|
2207 |
faster than \<^verbatim>\<open>standard\<close>, but occasionally causes problems with odd color |
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|
2208 |
shades. An alternative is to have \<^verbatim>\<open>view.antiAlias=standard\<close> and set a Java |
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|
2209 |
system property like this:\<^footnote>\<open>See also |
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|
2210 |
\<^url>\<open>https://docs.oracle.com/javase/10/troubleshoot/java-2d-pipeline-rendering-and-properties.htm\<close>.\<close> |
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|
2211 |
@{verbatim [display] \<open>isabelle jedit -Dsun.java2d.opengl=true\<close>} |
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|
2212 |
|
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|
2213 |
If this works reliably, it can be made persistent via @{setting |
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|
2214 |
JEDIT_JAVA_OPTIONS} within \<^path>\<open>$ISABELLE_HOME_USER/etc/settings\<close>. For |
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|
2215 |
the Isabelle desktop ``app'', there is a corresponding file with Java |
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|
2216 |
runtime options in the main directory (name depends on the OS platform). |
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|
2217 |
|
61574 | 2218 |
\<^item> \<^bold>\<open>Problem:\<close> Some Linux/X11 input methods such as IBus tend to disrupt key |
2219 |
event handling of Java/AWT/Swing. |
|
54329 | 2220 |
|
61574 | 2221 |
\<^bold>\<open>Workaround:\<close> Do not use X11 input methods. Note that environment variable |
2222 |
\<^verbatim>\<open>XMODIFIERS\<close> is reset by default within Isabelle settings. |
|
2223 |
||
2224 |
\<^item> \<^bold>\<open>Problem:\<close> Some Linux/X11 window managers that are not ``re-parenting'' |
|
2225 |
cause problems with additional windows opened by Java. This affects either |
|
2226 |
historic or neo-minimalistic window managers like \<^verbatim>\<open>awesome\<close> or \<^verbatim>\<open>xmonad\<close>. |
|
54329 | 2227 |
|
61477 | 2228 |
\<^bold>\<open>Workaround:\<close> Use a regular re-parenting X11 window manager. |
54329 | 2229 |
|
61574 | 2230 |
\<^item> \<^bold>\<open>Problem:\<close> Various forks of Linux/X11 window managers and desktop |
2231 |
environments (like Gnome) disrupt the handling of menu popups and mouse |
|
2232 |
positions of Java/AWT/Swing. |
|
54329 | 2233 |
|
62183 | 2234 |
\<^bold>\<open>Workaround:\<close> Use suitable version of Linux desktops. |
60291 | 2235 |
|
61477 | 2236 |
\<^item> \<^bold>\<open>Problem:\<close> Full-screen mode via jEdit action @{action_ref |
73050 | 2237 |
"toggle-full-screen"} (default keyboard shortcut \<^verbatim>\<open>F11\<close> or \<^verbatim>\<open>S+F11\<close>) works |
2238 |
robustly on Windows, but not on macOS or various Linux/X11 window managers. |
|
2239 |
For the latter platforms, it is approximated by educated guesses on the |
|
2240 |
window size (excluding the macOS menu bar). |
|
2241 |
||
2242 |
\<^bold>\<open>Workaround:\<close> Use native full-screen control of the macOS window manager, |
|
2243 |
unless it is macOS 11.1 (Big Sur). |
|
2244 |
||
2245 |
\<^item> \<^bold>\<open>Problem:\<close> Native full-screen mode on macOS 11.1 is incompatible with |
|
2246 |
Java window management: it puts dialog windows (Search, Hypersearch, etc.) |
|
2247 |
into an unusable state. |
|
2248 |
||
2249 |
\<^bold>\<open>Workaround:\<close> use the approximative action @{action_ref |
|
2250 |
"toggle-full-screen"}. |
|
64512 | 2251 |
|
2252 |
\<^item> \<^bold>\<open>Problem:\<close> Heap space of the JVM may fill up and render the Prover IDE |
|
2253 |
unresponsive, e.g.\ when editing big Isabelle sessions with many theories. |
|
2254 |
||
67092 | 2255 |
\<^bold>\<open>Workaround:\<close> Increase JVM heap parameters by editing platform-specific |
2256 |
files (for ``properties'' or ``options'') that are associated with the main |
|
2257 |
app bundle. |
|
58618 | 2258 |
\<close> |
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|
2259 |
|
67399 | 2260 |
end |