robertsosinski · January 9, 2022 19:27
diff --git a/gistfile1.txt b/gistfile1.txt
 -- 1. must be between 3 and 20 characters,
 -- 2. must be only:
 --    a. lowercase letters, 
 --    b. numbers,
 --    c. individual dashes.
 -- 3. must start with a letter,
 -- 4. must not end with a dash.
    
 '^[a-z]([-](?![-])|[a-z0-9]){1,18}[a-z0-9]$'
	-- 1. must be between 3 and 20 characters,
	-- 2. must be only:
	-- a. lowercase letters,
	-- b. numbers,
	-- c. individual dashes.
	-- 3. must start with a letter,
	-- 4. must not end with a dash.

	'^[a-z]([-](?![-])\|[a-z0-9]){1,18}[a-z0-9]$'