Regular Expressions 101

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Exercise

Python
http://play.inginf.units.it/#/level/4
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Weekend Regex

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2019/5/20

Python
test
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sub-pattern recursive with group backreference

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subpattern recurisive

PCRE (PHP <7.3)
using the recursive is outside of the capturing groups
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1...562563564565566...902

Community Library Entry

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Regular Expression
Python

r"
^([0-9])\1*$
"
Open regex in editor

Description

Check all the numbers are same in a string.

Submitted by DJA - 9 years ago