dynamic_union

🛠️ Build Dynamic Patterns with Regexp.union

Generate complex alternations from arrays safely by using Regexp.union. It handles escaping and joins patterns, preventing injection or manual errors.

keywords = ['foo.bar', 'foo*', 'baz']
pattern = Regexp.union(keywords)
# => /(?:foo\.bar|foo\*|baz)/
text = 'Match foo* or baz'
text.scan(pattern) #=> ["foo*", "baz"]