highConfidenceDigitLookalikes top-level constant

Set<String> const highConfidenceDigitLookalikes

Letters that are high-confidence digit lookalikes — safe to convert to digits even with only one digit-dominant neighbor.

Implementation

const Set<String> highConfidenceDigitLookalikes = {
  'O', 'o', // → 0
  'I', 'i', 'l', 'L', // -> 1
  'S', 's', // → 5
  'Z', 'z', // → 2
};