(PureBasic) JSON Escape and Unescape a String

The encoding mode keyword "json" was added in Chilkat v9.5.0.66 to provide the ability to escape and unescape JSON strings. See Chilkat Encodings for the full list of encoding keywords, such as "base64", "hex", "url", etc.

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkStringBuilder.pb"

Procedure ChilkatExample()

    ; Note: This example requires Chilkat version 9.5.0.66 or greater.

    sb.i = CkStringBuilder::ckCreate()
    If sb.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkStringBuilder::ckAppend(sb,"backslash: \\, A: \u0041")
    Debug CkStringBuilder::ckGetAsString(sb)

    ; The output is:
    ;    backslash: \\, A: \u0041

    ; Starting in Chilkat v9.5.0.66, the keyword "json" can be used
    ; to escape and unescape.  To escape is to encode.  To unescape is to decode.

    ; Unescape (decode) the string in sb.
    CkStringBuilder::ckDecode(sb,"json","utf-8")
    Debug CkStringBuilder::ckGetAsString(sb)

    ; After JSON unescaping:
    ;    backslash: \, A: A

    ; Now JSON escape the string.
    CkStringBuilder::ckEncode(sb,"json","utf-8")
    Debug CkStringBuilder::ckGetAsString(sb)

    ; After JSON escaping:
    ;    backslash: \\, A: A

    ; Note: The "A" is not escaped to "\u0041" because there is no need.
    ; The "\uXXXX" format would be produced for non-printable control chars.


    CkStringBuilder::ckDispose(sb)


    ProcedureReturn
EndProcedure