Coming soon in 3.4 – Contextual assistance
There are two new features in MPS 3.4 that I would like to drive your attention to today – the Context Assistant and the Context Actions Tool. Both have been inspired by the mbeddr project and both aim at making code editing easier and more intuitive, especially for novice users. Making the most relevant editing options explicitly visible to the user and accessible with mouse is part of our long-term strategy to make the MPS DSLs approachable for people outside of the narrow rank of professional developers.
Context Assistant provides visual hints directly in the editor
The language designer defines a place (cell) in the editor, where the menu can appear, and then defines the actions using the new Transformation Menu Language.
The language allows for modularization, so that extending languages can contribute their own entries into the menu easily.
Context Actions Tool
Context Actions Tool is a tool window attached to the right side-bar, which can show actions applicable in the current context.
The tool window offers more room than the in-editor Context Assistant and its entries can be further grouped into collapsable submenus, which gives the language authors quite some space to use.
Transformation Menu Language
To define the elements of both Context Assistant and Context Actions Tool the new Transformation Menu Language is being utilized. You may check out the previous post for motivation and further details about this language.
The Drive to Develop
-JetBrains MPS Team
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