Comment Re:Have a happy... (Score 1) 1219
optimized version:
(?-xism:(?i-xsm:(?::?(?:Christ|X)mas|C?hannukah|Kw anzaa)))
(?-xism:(?i-xsm:(?::?(?:Christ|X)mas|C?hannukah|K
Numeric stability is probably not all that important when you're guessing.