1" " ~ [[:blank:]]
2" " ~ [[:space:]]
3\a !~ [[:blank:]]
4\a !~ [[:space:]]
5\b !~ [[:blank:]]
6\b !~ [[:space:]]
7\f ~ [[:blank:]]
8\f ~ [[:space:]]
9\n ~ [[:blank:]]
10\n ~ [[:space:]]
11\r ~ [[:blank:]]
12\r ~ [[:space:]]
13\t ~ [[:blank:]]
14\t ~ [[:space:]]
15\v ~ [[:blank:]]
16\v ~ [[:space:]]
17