Whose home state was not Virginia or Massachusetts: 37
...,(?!Virginia|Massachusetts).+,...
Whose last name is longer than 7 characters: 15
[A-Za-z.\s]+? \s [A-Za-z\s]+,
First expressions says to use any letter.
Any period or space repeated lazily, not greedy.
The space comes after that.
...,[A-Za-z.\s]+?\s[A-Za-z\s]{8,},
Can also be a positive lookahead assertion as well:
...,(?=[A-Za-z.\s]+?\s[A-Za-z\s]{8,},).+,
Whose name dose not include a middle initial: 29
...,[A-Za-z\s]+,...
...,[^.]+,...
The above would look like ...,(?=[^.]+,).+,...
Whose term in office began on or after 1900: 21
...,(?=19|20)\d{4},...
...,(?:19|20)\d{2},...
Should be only 1 president whom meets all the above requirements.
/^.+$/ matches each line from beginning to end.
You can then put all of the above requirements together into one string.
The above would match the following string only:
“26,Theodore Roosevelt,1901,1909,Republican,New York, https://en.wikipedia.org/wiki/Theodore_Roosevelt”
Don’t get frustrated if your regex don’t work out at the start.