Regular Expressions 101

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Community Patterns

1

url - extrakce hostname

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 8 years ago
1

Tablename = schema.table

ECMAScript (JavaScript)
Tablename composed by schema.table
Submitted by Glauber Costa Vila Verde - 8 years ago
1

get CN from LDAP directory entry

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 8 years ago
1

Community Pageviews

ECMAScript (JavaScript)
no description available
Submitted by Alfredo Hinojosa - 8 years ago
1

only letters and numbers

PCRE (PHP <7.3)
Match only with letters and numbers between x to y quantities
Submitted by anonymous - 8 years ago
1

Unuseful names

ECMAScript (JavaScript)
no description available
Submitted by Moayad - 8 years ago
1

Match any line that starts with '[' and ends with ']'

PCRE (PHP <7.3)
Match any line that starts with '[' and ends with ']'
Submitted by anonymous - 8 years ago
1

Find particular punctuation

ECMAScript (JavaScript)
This regex find punctuation like "!", "!!!", "?", "???", "!?", "!!!???" and unlimited time repeated "!" and "?"
Submitted by Ivijan-Stefan Stipic - 8 years ago
1

Match Time in either 24Hr or 12Hr format

PCRE (PHP <7.3)
Matches a time in either 25Hr or 12Hr format. Seconds are optional for either format.
Submitted by anonymous - 8 years ago
1

Version number validation

PCRE (PHP <7.3)
E.g. android version name or ios bundle id validation
Submitted by Paldom - 8 years ago
1

dick detector

PCRE (PHP <7.3)
detect 8=D regex
Submitted by anonymous - 8 years ago
1

RFC 3986 IPv4 Validation

PCRE (PHP <7.3)
IPv4 Validation to RFC 3986 found at https://tools.ietf.org/html/rfc3986#section-1.1.1.
Submitted by anonymous - 8 years ago
1

Android package name

PCRE (PHP <7.3)
Validation of android package names. Read more
Submitted by Paldom - 8 years ago
1

Domain validation regex suitable for user input

Golang
This regexp can be used to validate domain names in Golang. While it cannot enforce the 253 character limit (with optional trailing period not included) that can be easily done by a simple len(domain) <= 253 check as well. This can be used as-is in other languages, even with RE2 regex engine. If po...
Submitted by Alexander Dupuy - 5 years ago
1

Return XML tag where attribute value equals X

PCRE (PHP <7.3)
Return XML tag where attribute value equals X
Submitted by anonymous - 8 years ago
1

Get the name of the image

PCRE (PHP <7.3)
This regex will be getting the name of the image source: data/products/cocacola/logo_new_version.jpg match: logo_new_version It will be returned logo_new_version on image index...
Submitted by strubloid - 8 years ago
1

Regrex email wiki

ECMAScript (JavaScript)
Length of email address is an industry standard, lady "The format of email addresses is local-part@domain where the local part may be up to 64 characters long and the domain may have a maximum of 255 characters[2]—but the maximum of 256-character length of a forward or reverse path restricts the ent...
Submitted by anonymous - 8 years ago
1

Extract URL, FTP, Mailto

ECMAScript (JavaScript)
extract url such as http, https:, ftp and mailto from a string
Submitted by Kumar Sundaram - 8 years ago
1

Months Regex

ECMAScript (JavaScript)
For Month Verification Works for January / Jan / Jan.
Submitted by F0123X - 8 years ago
1

Password minimum requirements

PCRE (PHP <7.3)
Password requirements (minimum length, character groups that must exist) can be easily validated AND extended using look-aheads.
Submitted by OnlineCop - 8 years ago
1...228229230231232...902

Community Library Entry

1

Regular Expression
PCRE (PHP <7.3)

/
# Adding password requirements are as easy as tacking on # another (?=...) group. ^ (?=(?:[^a-z]*[a-z]){1}) # At least {1} lowercase 'a-z' letter (?=(?:[^A-Z]*[A-Z]){2}) # At least {2} uppercase 'A-Z' letters (?=(?:[^0-9]*[0-9]){3}) # At least {3} digits (?=(?:[^\s]*[\s]){1}) # At least {1} whitespace (?=(?:[^[:punct:]]*[[:punct:]]){1}) # At least {1} special char (?=.{9}) # A minimum of 9 characters
/
gmx
Open regex in editor

Description

Password requirements (minimum length, character groups that must exist) can be easily validated AND extended using look-aheads.

Submitted by OnlineCop - 8 years ago