Regular Expressions 101

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Community Patterns

1

Simple, universal and short regex to find quoted strings. Invalid quotes inside string ignored. flag s (single-line) allows to find multiline strings

Python
'string in simple quotes' "in double-quotes" in back-quotes "Works good with symbols ' or " or ` inside the string" "All another type quotes "' inside string are ignored" use something like \ or \" or \' " Matches only identical quotes on string start and end ' // regex can`t find this...
Submitted by V. Martian - 5 years ago
1

Traefik stripprefixregex for web apps

Golang
Notes: Do not forget to escape the $ by an additional $. Escaping ? like \? does not work. But you could use [?] instead End result should be like this: "traefik.http.middlewares.r6tt-dev-web.stripprefixregex.regex=^/[a-z0-9/]+[a-z0-9]+([?]+.*)?$$"...
Submitted by anonymous - 4 years ago
1

Last Occurrence of comma(,) in a string

ECMAScript (JavaScript)
Used this to dynamically create placeholder text when a user changed the coordinates format from default to custom. ex ['DD', 'DDM', 'DMS'] to remove the comma from the string. The format comes from an array of strings so I had to do a join(', ').replace(/\,(?=*$)/g, ' or') to get DD, DDM or DMS
Submitted by anonymous - 5 years ago
1

map json

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 4 years ago
1

part 1

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 4 years ago
1

day date time

Python
no description available
Submitted by anonymous - 4 years ago
1

each section searched with line breaks still in 2.0 - gets entire section from From

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 4 years ago
1

email capturing

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 4 years ago
1

Role regex liferay-developer

PCRE (PHP <7.3)
Regex to liferay proyect for Role -> Developer
Submitted by anonymous - 4 years ago
1

Role regex ODH Developers

PCRE (PHP <7.3)
Regex to proyect ODH for ROLE -> Developers
Submitted by anonymous - 4 years ago
1

capturing div a or span or etc

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 4 years ago
1

c comments

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 4 years ago
1

c without comments for valid c code

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 4 years ago
1

word boundary position

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 4 years ago
1

matching numbers

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 4 years ago
1

matching phone numbers

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 4 years ago
1

Replacing markup link to html

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 4 years ago
1

C# Variable Signature

Python
Used for extracting information from doxygen. Handles: modifiers type, with generics name...
Submitted by anonymous - 4 years ago
1

Image tags

PCRE (PHP <7.3)
Extract image tags from a HTML code
Submitted by anonymous - 4 years ago
1

words in same sentence (also not consecutive)

ECMAScript (JavaScript)
La regex individua più parole, anche non consecutive, presenti nella stessa frase (non separate da un punto). Affinata per la gestione dell'attribuzione del flag cantina dell'importer.
Submitted by anonymous - 4 years ago
1...770771772773774...902

Community Library Entry

1

Regular Expression
PCRE (PHP <7.3)

/
[:,\{\}\[\]]|(\".*?\")|('.*?')|[-\w.]+
/
g
Open regex in editor

Description

I figured this would be the simplest way to Parse JSON. We have some known information about the properties to help determine the type at runtime.

  • Properties - Immediately followed by : characters
  • Values - Have a bracket } ] or a , directly after it in the regex return.
  • Strings - They are surrounded by " " and also can't adhere to Properties requirements.
  • Numbers - They have no " " surrounding them and only contain characters [0-9]. Can't adhere to Properties requirements.
  • Boolean - They have no " " surrounding them and only contain values "true" or "false". Can't adhere to Properties requirements.
  • Null - They have no " " surrounding them and only contain values "null". Can't adhere to Properties requirements.
  • JSON Object - Has a { bracket following the : character.
  • Array - Has a [ bracket following the : character.
Submitted by Dajeki - 5 years ago