advancedNormalize static method

String advancedNormalize(String text)

Advanced normalization that includes:

• Diacritic removal
• Case normalization
• Whitespace normalization
• Special character handling

Implementation

static String advancedNormalize(String text) {
  if (text.isEmpty) return text;

  return text
      .toLowerCase()
      .trim()
      .replaceAll(RegExp(r'\s+'), ' ') // Normalize whitespace
      .replaceAll(RegExp(r'[^\w\s\-\.]'), '') // Remove special chars
      .replaceAll(RegExp(r'\s+'), ' ') // Clean up spaces again
      .trim();
}