\x refers to hex encoding, so \x{2018} is a two-byte encoding of chr(32) and chr(30) (32 decimal = 20 hex). So it's one of the 16 bit character encodings, though from this alone I am unsure which. See replies for more info.

In reply to Re^2: special characters in parsed json rendering badly in browser by TheloniusMonk
in thread special characters in parsed json rendering badly in browser by slugger415

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