SML Environment

SML Environment is an extension for Visual Studio Code, allowing short executions like EMACS sml-mode and providing a text-highlight with some auto-complete features.

This project is been developed by Vinícius Julião (@vrjuliao), but the text-highlight is an updated version of Standard ML extension by Darin Morrison (@freebroccolo)

Features

• Short Execution:

  1. Open a sml file (or change your Language Mode for sml by Ctrl+K M)
  2. Select a piece of SML code.
  3. Press Ctrl+Enter (Linux, Windows) or Cmd+Enter (Mac).
  4. See the result on Output console.
  

• Text Highlight:

  

• use statement:
  To import a file to the environment, specify the filepath considering the workspace root directory as the starting point. For instance, if you have opened the folder my_codes/workdir/, and want to import my_codes/workdir/foo.sml, then type:

  use "foo.sml"

• Run current File:
  This option will restart the REPL environment

  1. Press Ctrl+Shift+P (Linux, Windows) or Cmd+Shift+P (Mac) open Command Palette.
  2. Type sml.
  3. Select "SML Environment: Execute current file".

Requirements

• SML/NJ

  This extension needs of SML/NJ for short execution. After install that, add the sml bin directory in your $PATH

  • Windows
    Download msi file here

  • Linux
    WARNING: smlnj not work well in WSL. To use this extension on Windows, it is preferable install it directly in Windows.
    Search for smlnj in your package manager. For instance, on Ubuntu terminal, type:

    foo@bar:~$ sudo apt install smlnj

  • MacOs
    Via Brew:

    foo@bar:~$ brew install --cask smlnj

  • Or else
    Follow the steps in SML/NJ download page for you operating system.

Configuration

Instead of add the sml interpreter to the $PATH, you can specify a binary for the sml interpreter. Just setting the sml-environment-interpreter-path attribute on your settings.json file.

Release Notes

0.0.2

• use statement:
  Adding the capability for import files.

• Bug fixed: Now, all syntax errors will be reported instantly.

• Syntax highlight fixes.

0.0.1

Initial release

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GitHub

The code for this extension is available on github at: https://github.com/vrjuliao/sml-vscode-extension

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License

Apache 2.0