$ show MeanderingProgrammer/render-markdown.nvim
This is a Neovim plugin that enhances in-editor Markdown rendering using tree-sitter parsing, extmarks, and virtual text. It provides rich visual formatting for headings, code blocks, tables, lists, checkboxes, callouts, quotes, links, LaTeX, YAML, HTML, and more. The plugin runs entirely inside Neovim, attaches to buffers via autocommands, and renders only the visible range for performance. It is highly configurable with component-level options, presets, per-buffer overrides, custom handlers, and integration with completion engines (nvim-cmp, blink.cmp, coq_nvim) and LSP. The architecture is modular: core modules manage lifecycle and UI, library modules provide reusable utilities (intervals, iterators, marks, nodes), and render modules dispatch tree-sitter queries to produce extmarks. The codebase is well-structured with comprehensive tests, health checks, and debugging tools. It demonstrates strong Neovim plugin craftsmanship with clear separation of concerns and extensibility patterns.
The LLM identified 3 files worth highlighting for reuse:
Provides interval data structures and operations (union, intersection, difference) for managing visible ranges in Neovim buffers. This is a self-contained, well-tested library that can be extracted for any Lua project requiring range arithmetic or set-like interval management. It demonstrates clean functional design with no dependencies on the rest of the plugin.
A collection of iterator utilities (map, filter, take, reduce, etc.) for working with Lua iterators in a functional style. This module is independent, type-agnostic, and can be reused in any Lua codebase to simplify iterator transformations. It shows thoughtful design for Lua's iterator protocol.
Implements a base renderer class using a setup/run pattern that all specific renderers (headings, code, tables, etc.) inherit from. It provides a clean abstraction for registering tree-sitter capture matches, managing extmarks, and handling anti-conceal behavior. This pattern is reusable for any Neovim plugin needing to process tree-sitter queries and produce extmarks, demonstrating solid OOP design in Lua.