This option affects only the behavior of the Circumflex metacharacter.
0
3
This option only affects the behavior of the Circumflex metacharacter.
0
4
This option affects only the behaviour of the Circumflex metacharacter.
0
5
Inside a character class, Circumflex has an entirely different meaning(see below).
0
6
The handling of dot is entirely independent of the handling of Circumflex and dollar, the only relationship is that both involve newlines.
0
7
The handling of dot is entirely independent of the handling of Circumflex and dollar, the only relationship being that they both involve newlines.
0
8
The handling of dot is entirely independent of the handling of Circumflex and dollar, the only relationship being that they both involve newline characters.