 Comparison of regular expression engines

Regular expression engines vary in their design, capabilities, and performance characteristics. Comparisons of regex engines typically focus on various factors including syntax, performance, features, and support in different programming languages. Here's a breakdown of some important aspects when comparing regular expression engines: ### 1. **Syntax and Features** - **Basic Syntax**: Most regex engines support a common set of syntax for defining patterns, including literals, character classes, quantifiers, anchors, and grouping.