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c9.ide.language.cryptol

This is an experimental Cloud9 IDE plugin for Cryptol, a domain-specific language for cryptography.

Prerequisites

This plugin should work with the legacy or AWS Cloud9 IDE.

Installation

Instructions for loading Cloud9 plugins are provided in this Cloud9 community post. However, this experimental plugin has not yet been published to a CDN, and the package built via c9 build cannot currently be loaded into the initialization script. On legacy Cloud9, the package.json can be loaded directly:

  1. Upload all files into ~/.c9/plugins/c9.ide.language.cryptol/.

  2. Add package.json to the arguments of services.pluginManager.loadPackage in the initialization script:

      services.pluginManager.loadPackage([
        "~/.c9/plugins/c9.ide.language.cryptol/package.json",
        // ...
      ]);
  3. Save the initialization script and commit changes, e.g. by pressing Ctrl-Enter or reloading the page.

Usage

This plugin provides the following features:

Syntax Highlighting

c9.ide.language.cryptol assigns different types to various Cryptol tokens (e.g. keywords, numerics, operators, strings, Prelude symbols, user-defined symbols), which the Cloud9 editor highlights with different colors according to the current theme. Types are somewhat consistent with TextMate language grammars.

Syntax highlighting is automatically triggered when opening a Cryptol module (.cry) or batch file (.icry). To apply Cryptol highlighting to a file with another extension, invoke the View > Syntax > Cryptol menu sequence.

Runners

c9.ide.language.cryptol introduces run configurations for Cryptol modules (.cry) and batch files (.icry), which can be launched automatically by clicking the Run button, or explicitly via the Run > Run With > Cryptol.run (or Cryptol_interactive.run) menu sequence. Nested modules require changing the current working directory of the runner to the module's root folder, e.g. via the CWD tab in the launched terminal pane or a custom run configuration.

Outline

c9.ide.language.cryptol assigns Cryptol tokens to Cloud9 outline types:

  • module -> package
  • import -> package
  • type (constraint) -> property
  • symbol -> method
  • property -> method2

The result is a flat view of a hierarchy of symbol definitions, including those inside where clauses of other definitions, which is arguably better (or worse) than nothing. The Outline view can be toggled by clicking on the Outline tab in the navigation menu to the right.

Snippets

c9.ide.language.cryptol supports autocompletion of named code snippets, which can be displayed via the configured key sequence for autocompletion (typically Ctrl-Space). For example, the user can type if<Ctrl-Space> to insert an if-then-else-with-multiway snippet. Snippets are filtered by prefix but not by validity.

Templates

c9.ide.language.cryptol includes very basic templates for new Cryptol modules or interactive scripts, which can be created via the File > New from template > Cryptol module (or Cryptol script) menu sequence.

Tests

c9.ide.language.cryptol does not have any automated tests...yet. It has been used with a variety of examples and test cases from the author as well as those included in the Cryptol repository. In most cases, it behaves helpfully, if not always correctly.

Built With

Contributing

The author welcomes contributions (by way of pull requests or issues) from those interested in Cryptol and/or language tooling.

Authors

See also the list of any contributors who have participated in this project.

License

This project is licensed under the 3-Clause BSD License - see the LICENSE.md file for details.

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Experimental Cloud9 Plugin for Cryptol

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