Regular Expressions 101

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Community Patterns

1

test

PCRE (PHP <7.3)
test
Submitted by test - 10 years ago
1

url

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
1

Get value from string

ECMAScript (JavaScript)
Used to get a value from a class e.g.: [...] class="font-12"[...] This regEx will receive "12" given the content of the class
Submitted by Gabriel R. Sezefredo - 10 years ago
1

German ZIP Validation

ECMAScript (JavaScript)
Validates German ZIP codes
Submitted by wehmoen - 10 years ago
1

Timecode

Python
Regex to match standard timecode format.
Submitted by Travis - 10 years ago
1

Digit

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
1

End of line - SJava

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
1

Test BigDecimal formatter

ECMAScript (JavaScript)
no description available
Submitted by Wally - 9 years ago
1

CSV parsing

PCRE (PHP <7.3)
matches the exact fields of CSV files supports: qouted fields quoted fields containing commas, doubble quoutes, and newlines empty fields empty records arbitrary white space in, and outside quoted fields
Submitted by Austin - 9 years ago
1

Apache Access Log pattern

Python
Apache Web server log file format following the standard
Submitted by Basil Tungekar - 9 years ago
1

Error Regex

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

Address email

ECMAScript (JavaScript)
no description available
Submitted by JS - 9 years ago
1

a-zA-Z + 0-9 + [!$%&?]

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

Name Validation

PCRE (PHP <7.3)
Start with capital letter. Allowed special characters '(Apostrophe) -(hyphen) .(dot) (space) and can not end with -(Hyphen)
Submitted by Venu Nimmagadda - 9 years ago
1

C-Syle If Statement to Excel

ECMAScript (JavaScript)
no description available
Submitted by nomloc - 9 years ago
1

dutch zipcode with named matching

PCRE (PHP <7.3)
no description available
Submitted by Eelke van den Bos - 9 years ago
1

Italian Fiscal Code [Codice fiscale]

ECMAScript (JavaScript)
Codice fiscale italiano
Submitted by Italo - 9 years ago
1

ipv4 IP addressses, capturing private ranges

PCRE (PHP <7.3)
Capture 0.0.0.0-255.255.255.255 IP address octets. Capture private ranges, such as '169.254.' and '10.'
Submitted by OnlineCop - 9 years ago
1

decimal number validation

PCRE (PHP <7.3)
accepts 1; 1.1; 112315.23135
Submitted by MS - 9 years ago
1

username

PCRE (PHP <7.3)
Letras, Ñ, acentos, números, guión y barra baja
Submitted by diegosanz - 9 years ago
1...838839840841842...902

Community Library Entry

1

Regular Expression
PCRE (PHP <7.3)

/
(\[(?:[^[\]]*?)\]\s*?(?=\[))|(\[(?:[^[\]]*?)\](?!\s*[\|&]\s*.))|(?:\[[^[\]]*?])|([^&\|\s]+)\s+(?=[^&\|\s]+)
/
g
Open regex in editor

Description

/**

  • this regex should match most cases where the user forgets to put an operator somewhere and add an OR, it still
  • does not handle nested square brackets but those are invalid anyways
  • this page has an explanation https://regex101.com/r/fF7wO1/2
  • the way this regex grabs conflicting matches is by oring different cases together in the order we want to grab them in
  • the first case is for a set of brackets immediately followed by an opening bracket (seperate them with an or)
  • the second case is for a set of brackets immediately followed by any non operator character (seperate with an or)
  • the third case is for a set of brackets followed by an operator (do nothing)
  • the final case is for two words outside of brackets seperated by a space (fill space with an or)
  • @type {RegExp} */
Submitted by warnock - 9 years ago