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;;;; utilities -- nuff said
(in-package :dnd)
(let ((host (uiop:hostname))
(count 0))
(defun nuid ()
"Generates a Nearly Universal ID"
(format nil "~36r"
(sxhash
(list
(incf count)
host
(get-universal-time))))))
(defun hash-string (plaintext salt)
"Hash plaintext using SALT"
(flexi-streams:octets-to-string
(ironclad:digest-sequence
:sha3
(flexi-streams:string-to-octets (concatenate 'string salt plaintext)
:external-format :utf-8))
:external-format :latin1))
(defparameter +user-nick-chars+ "0123456789abcdefghijklmnopqrstuvwxyz-._")
(defun/t valid-nick-p (nick)
:tests
(eql ("??????") nil)
(eql ("⚔") nil)
(eql ("cool_beans") t)
(eql ("COOOL_BEANS") t)
(eql ("COOL beans") nil)
:end
(unless (zerop (length nick))
(every (lambda (char) (find char +user-nick-chars+)) (string-downcase nick))))
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