I would like to use mutate (gsub) on "text" fieldname to replace unicode value of emoticons to respective string values. An example - "\ud83d\ude27" replaced by "emoticon_anguished" I tried to escape single backslash by two, as following. Replacement is not working. filter { mutate { …

Use filter mutate gsub emoticons (emoji) in unicode values

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Use filter mutate gsub emoticons (emoji) in unicode values