B4X

Decode 2-digit Hex Escaped

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Demonstrates how to replace escaped us-ascii chars such as \x7b and \x22 with the chars. B4X

'  We have the following string with some us-ascii chars escaped like this:
Dim s As String = "\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..

Dim sb As ChilkatStringBuilder
sb.Initialize

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

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

'  Show the decoded string
Log(sb.GetAsString)

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