""" defining regexes for regularly used concepts """

DOMAIN = r"[\w_\-\.]+\.[a-z]{2,}"
LOCALNAME = r"@?[a-zA-Z_\-\.0-9]+"
STRICT_LOCALNAME = r"@[a-zA-Z_\-\.0-9]+"
USERNAME = r"%s(@%s)?" % (LOCALNAME, DOMAIN)
STRICT_USERNAME = r"\B%s(@%s)?\b" % (STRICT_LOCALNAME, DOMAIN)
FULL_USERNAME = r"%s@%s\b" % (LOCALNAME, DOMAIN)
# should match (BookWyrm/1.0.0; or (BookWyrm/99.1.2;
BOOKWYRM_USER_AGENT = r"\(BookWyrm/[0-9]+\.[0-9]+\.[0-9]+;"