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Regular
Expressions
101
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Explanation
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Quick Reference
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All Tokens
Common Tokens
General Tokens
Anchors
Meta Sequences
Quantifiers
Group Constructs
Character Classes
Flags/Modifiers
Substitution
A single character of: a, b or c
[abc]
A character except: a, b or c
[^abc]
A character in the range: a-z
[a-z]
A character not in the range: a-z
[^a-z]
A character in the range: a-z or A-Z
[a-zA-Z]
Any single character
.
Alternate - match either a or b
a|b
Any whitespace character
\s
Any non-whitespace character
\S
Any digit
\d
Any non-digit
\D
Any word character
\w
Any non-word character
\W
Match everything enclosed
(?:...)
Capture everything enclosed
(...)
Zero or one of a
a?
Zero or more of a
a*
One or more of a
a+
Exactly 3 of a
a{3}
3 or more of a
a{3,}
Between 3 and 6 of a
a{3,6}
Start of string
^
End of string
$
A word boundary
\b
Non-word boundary
\B
Regular Expression
r"
"
Unit Tests
given the string
DA
assert that regex does match
given the string
D0A
assert that regex does match
given the string
D30
assert that regex does match
given the string
D2F
assert that regex does match
given the string
D1a
assert that regex does match
given the string
D1A
assert that regex does match
given the string
D19
assert that regex does match
given the string
D11
assert that regex does match
given the string
D10
assert that regex does match
given the string
D3
assert that regex does match
given the string
D2
assert that regex does match
given the string
D1
assert that regex does match
given the string
D0
assert that regex does match
Run tests
Add test