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Regular
Expressions
101
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Unit Tests (7)
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Explanation
An explanation of your regex will be automatically generated as you type.
Quick Reference
Regular Expression
v1
Select Regex Version
Regex Versions
r"
Change delimiter
Delimiters
"
'
"""
'''
"
gm
Regex Flags
g
lobal
Don't return after first match
m
ulti line
^ and $ match start/end of line
i
nsensitive
Case insensitive match
e
x
tended
Ignore whitespace
s
ingle line
Dot matches newline
u
nicode
Match with full unicode
a
scii
Make escape sequences perform ASCII-only matching
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Unit Tests
given the string
[]
assert that regex does match
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given the string
[[1],[3]]
assert that regex does match
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given the string
[[1,2],[3,4]]
assert that regex does match
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given the string
[[01,02],[03,04]]
assert that regex
does
not
match
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given the string
[[]]
assert that regex
does
not
match
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given the string
[
[
1
,
2
]
,
[3,
4]
]
assert that regex does match
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given the string
[
]
assert that regex does match
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