isEncoded static method

bool isEncoded(
  1. String string
)

Checks if a string appears to be already URL encoded

Implementation

static bool isEncoded(String string) {
  if (string.isEmpty) return false;

  // Check for typical URL encoding patterns like %20, %3A, etc.
  final hasEncodedChars =
      RegExp(r'%[0-9A-F]{2}', caseSensitive: false).hasMatch(string);

  // Match iOS behavior - ignore double encoding check for now
  return hasEncodedChars;

  // TODO: Decide what to do with double encoding
  // Check if double encoding has occurred (e.g., %253A instead of %3A)
  // final hasDoubleEncoding =
  //     RegExp(r'%25[0-9A-F]{2}', caseSensitive: false).hasMatch(string);
  //
  // If we have encoded chars but no double encoding, it's likely properly encoded
  // return hasEncodedChars && !hasDoubleEncoding;
}