Ruby UTF 8 Decryption Issue-CodePudding

after decrypting a hash, method decrypt(hash[field]) is returning:

"100\xE2\x80\x90111\xE2\x80\x9010333\xE2\x80\x900012"

but using puts decrypt(hash[field]) gives correct result as

'100‐111‐10333‐0012'

how to resolve this issue?

CodePudding user response：

Your decrypt method is returning binary data, not the UTF-8 encoded string you're expecting. The bytes "\xE2\x80\x90" are ‐:

puts '‐'.bytes.map { |b| b.to_s(16) }
# e2
# 80
# 90

or:

puts '‐'.force_encoding('binary').inspect
# "\xE2\x80\x90"

If you're sure you're getting a UTF-8 string, then fix the encoding:

# UTF-8 is the default so we force binary to start
bytes = "100\xE2\x80\x90111\xE2\x80\x9010333\xE2\x80\x900012".force_encoding('binary')
# "100\xE2\x80\x90111\xE2\x80\x9010333\xE2\x80\x900012" 
puts bytes.force_encoding('utf-8')
# 100‐111‐10333‐0012