1# RFC 3986 2.2.  Reserved Characters
2#
3#   reserved    = gen-delims / sub-delims
4#
5#   gen-delims  = ":" / "/" / "?" / "#" / "[" / "]" / "@"
6#
7#   sub-delims  = "!" / "$" / "&" / "'" / "(" / ")"
8#               / "*" / "+" / "," / ";" / "="
9#
10GEN_DELIMS = ":/?#[]@"
11SUB_DELIMS = "!$&'()*+,;="
12RESERVED = GEN_DELIMS + SUB_DELIMS
13
14# RFC 3986 2.3.  Unreserved Characters
15#
16#   unreserved  = ALPHA / DIGIT / "-" / "." / "_" / "~"
17#
18UNRESERVED = (
19    "ABCDEFGHIJKLMNOPQRSTUVWXYZ" "abcdefghijklmnopqrstuvwxyz" "0123456789" "-._~"
20)
21