vregex

A minimal regular expression engine built on top of non-deterministic finite automata(NFAs).

Syntax

Use within RegEx::from_pattern()

• . matches any single character
• | for alternate: a|b matches a or b
• [] for character classes: [abc] matches any character in the set
• Use ^ at the beginning to negate: [^abc] matches any character except a, b, or c
• Predefined character classes:
  • \d, \D for digits
  • \l, \L for lowercase letters
  • \u, \U for uppercase letters
  • \s, \S for whitespace