How to write json string with utf16 characters in it

Question

I'm trying to figure out how to get utf16 characters in my json string. This is my json:

ourWideStringClass jsonNoError("{    \
    \"type\" : \"ROI\", \
    \"m_position\" : { \
        \"m_x\" : 16, \
        \"m_y\" : 32, \
        \"m_z\" : 0 \
    }, \
    \"m_size\" : { \
        \"m_width\" : 64, \
        \"m_height\" : 128, \
        \"m_depth\" : 3 \
    } \
    } ");

So if I have the following utf16, I'm not sure how to put that in the above. I know I can't put 0x9CE5 in the json, like by replacing 128 with 0x9CE5. I'm not sure what to do. Any ideas?

I was reading encoding U . I'm not sure if I can use the escape U in my json string or how to do that. Would it be \\U"m_x" ?

Answer 1

If you need to have the U+9CE5 character as a part of a string within JSON, you can do so by encoding it as \鳥 , eg:

"key": "before\u9ce5after"

Alternatively, you can include this character unencoded in your JSON .

Please refer to json.org for JSON syntax, eg:

"key": "before鳥after"

---

Please note that the term "UTF-16 character" is not correct. UTF-16 doesn't define any characters — it's a specification how to encode Unicode characters . The characters themselves (or codepoints) are defined by the Unicode standard, and a whole string of Unicode characters may be encoded as UTF-16, UTF-8 or via other encoding schemes.

So all of your JSON is in some encoding (eg in UTF-16), not just separate characters.