Function normalizePackageName

app/utils/package-name.ts:16–29

(name: string)

 * This aims to mirror npm's typosquatting detection algorithm.
 */
export function normalizePackageName(name: string): string {
  // Remove scope if present
  const unscoped = name.startsWith('@') ? name.split('/')[1] || name : name

  // Normalize: lowercase, remove punctuation (.-_), remove 'js' and 'node' suffixes/prefixes
  return (
    unscoped
      .toLowerCase()
      // Remove all punctuation
      .replace(/[.\-_]/g, '')
      // Remove common suffixes/prefixes
      .replace(/^(node|js)|(-?js|-?node)$/g, '')
  )
}

/**
 * Calculate similarity between two strings using Levenshtein distance.