#Parsing unicode escape sequences with Serde

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knotty arch
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JSON (RFC 8259) only supports escapes for characters in the basic multilingual plane. That is U+0000 up to U+FFFF. Any extended characters need to be escaped using UTF-16 surrogate pairs. In your case that would be \uD83E\uDD79.

knotty arch
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I looked it up in a table.