^(?2)(([ \n\r\t])(((?9)(?2):((?2)(?1)(?2)))(,(?2)(?4)))?}]|\(["\/bfnrt]|u[\da-fA-F]{4}))")|-?(0|[1-9]\d)(.\d+)?([eE][-+]?\d+)?|null)(?2)$
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A small set of regular expressions can tokenize JSON text – that’s what
lexhelps with, for example. However regular expressions cannot truly parse anything.JSON is not a regular language, so you can’t parse it using regex: https://cstheory.stackexchange.com/questions/3987/is-json-a-regular-language
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