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5. UUID

Available inall subroutines.

Returns true if the string holds a valid textual representation of one of the following UUIDs:

• version 1 (per RFC 4122)
• version 3, 4, or 5 (per RFC 9562)
• version 7 (per the draft RFC)

Returns false otherwise.

Example

if (uuid.is_valid(req.http.X-Unique-Id)) {
  set beresp.http.X-Unique-Id-Valid = "yes";
}