After a few month since the last updates there are now new releases of the Node.js module and the vscode extension with some cool new features. antlr4-graps now can generated sentences from your grammar, that is, random input that always parses and shows the language your grammar supports. This can be used for demonstration purposes, checks against other parser implementations or just to see if your grammar does the right thing. Another new feature is the grammar formatter, which supports a large number of options and comes with a powerful alignment implementation. The antlr4-vscode extension makes all that available in Visual Studio code (see also the vscode market place).
A new release of the ANTLR4 grammar parsing service (antlr4-graps)NodeJS module has been published. Besides some bug fixing a big new feature was added: ATN graphs. This is something especially useful for core ANTLR4 developers (target writers or those working directly on ANTLR4) as it generates data about the internal ATN that can be visualized for a better understanding about it's structure (see also the ANTLR4 grammar support extension in vscode for such a visualization).
A few days ago I published a new release of the ANTLR4 extension for Visual Studio Code, which contains a number of fixes and new features. The light color theme is now complete as well and you get railroad diagrams for your grammar rules and even entire files. These can be saved to disk (as HTML with embedded svg), so that you can use them in other documents. Code lens support was added as well, which allows to (optionally) show rule reference counts. Hope you enjoy the new release.
Recently Sam Harwell released the ANTLR4 Typescript runtime as a Node.JS module, which opens a great way to implement ANTLR support in Node.JS modules and Visual Studio Code extensions. I took the opportunity and rewrote my antlr-graps Node.JS module and my vscode-antlr4 extension. If you are working with Visual Studio Code and want ANTLR grammar support in it then go ahead and install the extension. While it's on a good way it still cannot compete with IDEs like antlrworks2 (also written by Sam Harwell).