8: Regular Expressions

Question 1

regular expressions

Question 2

regexes

Question 3

re

Question 4

docs.python.org/3/library/re.html

Question 5

re.search(pattern, string, flags=0)

Question 6

.

Answer 6

any character except a newline

Question 7

*

Answer 7

0 or more repetitions

Question 8

+

Answer 8

1 or more repetitions

Question 9

?

Answer 9

0 or 1 repetition

Question 10

{m}

Answer 10

m repetitions

Question 11

{m, n}

Answer 11

m-n repetitions

Answer 12

matches the start of the string

Question 13

$

Answer 13

matches the end of the string or just before the newline at the end of the string

Question 14

[ ]

Answer 14

set of characters

Question 15

[ ^ ]

Answer 15

complementing the set

Question 16

\d

Answer 16

decimal digit

Question 17

\D

Answer 17

not a decimal digit

Question 18

\s

Answer 18

whitespace characters

Question 19

\S

Answer 19

not a whitespace character

Question 20

\w

Answer 20

word character … as well as numbers and the underscore

Question 21

\W

Answer 21

not a word character

Question 22

re.IGNORECASE

Question 23

re:MULTILINE

Question 24

re.DOTALL

Question 25

^[a-zA-Z0-9.!#$%&’+\/=?^_`{|}~–]+@a-zA-Z0-9?(?:.a-zA-Z0-9?)$

Question 26

re.match(pattern, string, flags=0)

Question 27

re.fullmatch(pattern, string, flags=0)

Question 28

A|B

Answer 28

either A or B

Question 29

(…)

Answer 29

a group

Question 30

(?:…)

Answer 30

non-capturing version

Question 31

: =

Question 32

re.sub(pattern, repl, string, count=0, flags=0)

Question 33

re.split(pattern, string, maxsplit=0, flags=0)

Question 34

re.findall(pattern, string, flags=0)