Regular Expressions 101

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Community Patterns

-2

Remove namespaces

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-2

Header `Link` validator

ECMAScript (JavaScript)
no description available
Submitted by Vaseker - 10 years ago
-2

html check in spacial case

PCRE (PHP <7.3)
it check the html content with like html tag but not html. somthing this not html content but it has content like html tag.
Submitted by A. K. Asik - 10 years ago
-2

4 digit numeric w/o leading zero and no repeat digits

PCRE (PHP <7.3)
A pcre that capture a 4-digit numeric that does not allow a leading zero and no repeat digits.
Submitted by Jeff Thompson - 10 years ago
-2

SPLIT ADDRESS LINE INTO STREET NAME AND HOUSE NUMBER

PCRE (PHP <7.3)
This regular expression splits an address line like for example "1117 Franklin Blvd" into the street name and house number. It also supports addresses where street name and house number are the other way around (e.g. "Mustermannstr. 1"). Furthermore, this regular expression also supports address lin...
Submitted by Andre Wisplinghoff - 10 years ago
-2

cofor

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
-2

spot2-test

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
-2

checklists item

Python
checklists item
Submitted by Tobias Hochgürtel - 9 years ago
-2

Date Validation

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
-2

Validation of code ATECO Italian

Python
/* -- This is a RegEx for validating one Italian ATECO code. -- For original specification visit: http://www.istat.it/it/archivio/17888 -- Valid: */ 1...
Submitted by Marco Tonchella with the help of this Comunity that thanks a lot. - 9 years ago
0

SAS Boundaries version 3

PCRE (PHP <7.3)
Basic sas boundaries, %macro proc %include etc
Submitted by Leo Lopes - 9 years ago
0

Validate Semantic version numbering

PCRE (PHP <7.3)
This validates version numbers that adhear to the Semantic protocol e.g. in form of xx.xx.xx or 1.2.2
Submitted by Al - 9 years ago
0

#tagging tag form regex

PCRE (PHP <7.3)
hash tagging actual title or description format regex
Submitted by rameespu@gmail.com - 9 years ago
0

#tagging original form regex

PCRE (PHP <7.3)
#tagging original form regex
Submitted by rameez rami - 9 years ago
0

Unix file name from full path

PCRE (PHP <7.3)
Replace the forward slashes with back slashes for Windows
Submitted by anonymous - 9 years ago
-2

Roman numbers

ECMAScript (JavaScript)
This regex matches roman numbers from 1 (I) to 3999 (MMMCMXCIX)
Submitted by Nicolò Ribaudo - 9 years ago
0

hidden項目デフォルト隠蔽

PCRE (PHP <7.3)
これを技術担当に見せれば理解してくれるはず。 '(]type="[text|hidden]"value=")(+)("*>)' このコードがデフォルトでClickTaleタグ内のJSに付与されてて、 これがあるとフォームで入力された項目等は全て【ーーーー】に...
Submitted by 井上 - 9 years ago
-2

float

PCRE (PHP <7.3)
matches 123.4f 123.4F .4f .4F 5f 5F
Submitted by Mateusz Paluch - 9 years ago
0

Search for foobar in a csv string

PCRE (PHP <7.3)
Search for foobar in a csv string
Submitted by Balmark - 9 years ago
-2

boolean

PCRE (PHP <7.3)
Value must be either true or false
Submitted by nstaal - 9 years ago
1...373374375376377...902

Community Library Entry

1

Regular Expression
ECMAScript (JavaScript)

/
\s*;\s*[qQ]=(?<qvalue>(?:0(?:\.\d{1,3})?)|(?:1(?:\.0{1,3})?))\b
/
g
Open regex in editor

Description

To extract the Quality Value (qvalue) according the RFC 9110 HTTP Semantics specifications from the weight of HTTP headers elements, like:

  • Accept-Language
  • Accept
  • Accept-Charset
  • Accept-Encoding
  • TE
  weight = OWS ";" OWS "q=" qvalue
  qvalue = ( "0" [ "." 0*3DIGIT ] )
         / ( "1" [ "." 0*3("0") ] )
Submitted by Daniel D'Leon - 12 hours ago