FindBase64Substrings returns a slice containing all the non-overlapping substrings of s that are at least 20 characters long, and look like base64-encoded data.

FindHexSubstrings returns all non-overlapping substrings of s made up of at least 8 consecutive hexadecimal digits.

IsHighlyEscaped returns true if a string literal exceeds the given threshold count or frequency (in range [0, 1]) of escape sequences.

SuspiciousIdentifierPatterns is a list of regex patterns to match source code identifiers that are carry a suspicion of being obfuscated, due to being not very human-friendly.