Not easily, because you would need to match punctuation and other odd characters. It would be nice to have a way to match any character.
Rule 9: Wild Card
. matches any one character except
||any one character except "end of line"|
||bat, bbt, bct, bdt, ..., bAt, b$t, b7t, ...|
||baty, bbtx, bctq, bdt, ..., bAtY, b$t5, b7tk, ...|
So, to match a string of any five characters, use
(Quantifiers, explained at the end of this chapter, enable
a more elegant way to do this.)
If you want to specifically match a period (or decimal point) and nothing else, use
Write a regular expression that matches any three character string that starts with M.