NWMatcher CSS Selector Engine

NWMatcher is a fast and W3C CSS3-compliant JavaScript selector engine, currently at version 1.4.4. It provides robust methods for selecting, matching, and traversing DOM elements using CSS selectors, aiming for behavior consistent with modern web browsers. The library is actively maintained through regular bug fixes, performance enhancements, and improved compliance with CSS specifications, particularly for headless environments like Node.js with JSDOM. It distinguishes itself by offering a reliable, standalone solution for scenarios where native `querySelectorAll` might not be available, or when fine-grained control over selector parsing and matching is required. This includes comprehensive support for CSS2/CSS3 selectors, pseudo-classes, and extensive configuration options to tailor its behavior. Recent releases focus on addressing specific behavioral quirks, optimizing DOM traversal, and ensuring broad W3C compatibility across diverse environments.