Behind the Scenes: Query Language Editor

Building on a previous guide about setting up a query language lexer and parser using ANTLR, this post explores integrating this setup into a user-friendly interface through the Monaco editor. The Monaco editor, known for powering VS Code, offers advanced features like auto-completion, syntax highlighting, and error handling, making it suitable for enhancing user experience. The integration process involves registering a language, defining a theme with specific token colors, and setting up tokenization using classes such as TokensProvider and Token. Additionally, the editor can handle errors by setting markers and provides auto-completion through a customizable completion item provider. Although the setup requires some boilerplate code, it offers flexibility and support for creating an intuitive interface for users to write queries following a defined grammar.