DataFlex

Decode JSON Unicode Escaping

See more Misc Examples

Demonstrates how to decode JSON Unicode escaped strings.

JSON escaping with hexadecimal encoding, also known as "JSON Unicode escaping," is a way to represent special characters and non-ASCII characters within a JSON (JavaScript Object Notation) string using hexadecimal Unicode code points. This encoding is commonly used when you need to include characters that are outside the ASCII character set or when you want to represent characters in a more compact form.

In JSON Unicode escaping, special characters are represented using the '\u' escape sequence followed by a four-digit hexadecimal number that represents the Unicode code point of the character. Here are some examples:

• '\u0022': Represents a double quote ('"') character.
• '\u005C': Represents a backslash ('\') character.
• '\u003C': Represents a less-than ('<') character.
• '\u003E': Represents the greater-than ('>') character.

For example, if you have a JSON string containing '>' and '<', you would represent it using Unicode escape sequences like this:

Original String: ""
JSON Escaped String: "\u003chtml\u003e"

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    String s
    Handle hoSb
    Boolean iSuccess
    String sSDecoded

    Move "\u003chtml\u003e" To s

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSb
    If (Not(IsComObjectCreated(hoSb))) Begin
        Send CreateComObject of hoSb
    End
    Get ComAppend Of hoSb s To iSuccess
    Get ComDecode Of hoSb "json" "utf-8" To iSuccess

    Get ComGetAsString Of hoSb To sSDecoded

    Showln sSDecoded


End_Procedure