6.2.3 The . Character
The next special character we will consider is the
. character. The
. will match any valid character. As an example, consider the
regular expression
a.c. This regular expression will match any
string that contains an
a and a
c, with any possible character
in between. Thus, strings that contain
abc,
acc,
amc,
etc. are all in the class of strings that this regular expression
matches.
