This article explains how the Cursor IDE indexes a codebase, focusing on its approach to understanding code structure and relationships beyond simple text indexing. It details the use of Language Server Protocol (LSP) and the creation of a graph database to represent the codebase, enabling features like code navigation, refactoring, and accurate code completion.
This article explains the Language Server Protocol (LSP), which was introduced by Microsoft to solve the complexity of integrating language-specific features in code editors. LSP separates language servers from code editors, providing interoperability through a defined set of standard messages using JSON-RPC. The article also covers how LSP works and provides an example with the Go programming language.
Justin Barclay, a software engineer, shares his journey of turning the Emacs text editor into a feature-rich Integrated Development Environment (IDE). He discusses the enhancements made to Emacs 29, such as syntax highlighting, code diagnostics, and IntelliSense capabilities.