(Ruby) Decode 2-digit Hex Escaped

Demonstrates how to replace escaped us-ascii chars such as \x7b and \x22 with the chars.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# We have the following string with some us-ascii chars escaped like this:
s = "\x7b\x22responseContext\x22:\x7b\x22"

# Note: The above escaping does not conform to any standard format (as far as I know).
# Chilkat does not have anything to decode from the above.
# However, we can 1st transform into a standard format, and then decode..

# JSON escapes chars outside us-ascii like this:  "Hello, \ud83d\ude03!"
# We can transform the above to this:  "\u007b\u0022responseContext\u0022:\u007b\u0022"
# And then decode..

sb = Chilkat::CkStringBuilder.new()

sb.Append(s)
numReplaced = sb.Replace("\\x","\\u00")

# Now decode from "json" escapes
sb.Decode("json","utf-8")

# Show the decoded string
print sb.getAsString() + "\n";

# Here's the result: {"responseContext":{"