Regular Expressions 101

Community Patterns

-2

adsf

Python
adfadfad
Submitted by anonymous - 8 years ago
1

rolex

Python
no description available
Submitted by anonymous - 8 years ago
1

Valid .bit domain

Python
no description available
Submitted by anonymous - 8 years ago
1

Look Forward

Python
Between two strings.
Submitted by Online Cop - 8 years ago
1

arxiv

Python
no description available
Submitted by anonymous - 8 years ago

Roman numbers

-2

Regular Expression
ECMAScript (JavaScript)

/
^(?!$)M{0,2}(?:M(?=CM(?:XC)?(?:IX)?$))?(?:C(?=M[^CD]*(?:XC)?[^CD]*$))?M?(?:C(?=D[^C]*(?:XC)?[^C]*$))?D?C{0,2}(?:C(?=XC(?:IX)?$))?(?:X(?=C[^X]*(?:IX)?[^X]*$)(?!.*L))?C?(?:X(?=L[^X]*(?:IX)?[^X]*$))?L?X{0,2}(?:X(?=IX$))?(?:I(?=[XV]$))?X?V?I{0,3}$
/

Description

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Submitted by Nicolò Ribaudo - 8 years ago