Regular Expressions 101

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Library entries

103
javascript

trim

trim string
Submitted by fp - 9 years ago
37
pcre

http://

no description available
Submitted by Mitus M. - 8 years ago
33
javascript

IP Address validator

Validates IPv4 IP Address
Submitted by krzysp - 7 years ago
31
pcre

ninite

no description available
Submitted by peek - 7 years ago
30
javascript

Email address (most used)

Email address, most used cases
Submitted by Jago - 7 years ago
27
pcre

Wrap long string to spec length

no description available
Submitted by fullpipe - 9 years ago
22
pcre

userName

1-15 alphanumeric login name
Submitted by gsanchezc - 7 years ago

HSL(A) Color Matching

Vote

3

Regular Expression
pcre

/
(?(DEFINE) (?<decimal>(?(int)([.][0-9]+)?|[.][0-9]+)) (?<percentage> (100| (?<int>([0-9]|[1-9][0-9]))? # Have integer be optional (0-100 only) (?P>decimal) # Have decimal required when an integer is not included ) (?<symbol>%) ) (?<hue> (?<int>36[0]|3[0-5][0-9]|[12][0-9][0-9]|[1-9]?[0-9])? # Have integer be optional (?P>decimal) # Have decimal required when an integer is not included (?<symbol>\s*deg\s*)? ) (?<alpha> (?(alpha),\s*( 1[.]0| (?<int>0)? # Have integer be optional (?P>decimal) # Have decimal required when integer is not incldue )\s*) ) (?<hsl>\s*(?P>hue)\s*,\s*(?P>percentage)\s*,\s*(?P>percentage)\s*) ) hsl(?<alpha>a)?\((?P>hsl)(?P>alpha)\)
/
gxJi

Description

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Submitted by anonymous - 3 years ago