Regular Expressions 101

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Community Patterns

1

PHP Class Capture Groups from symbol string for Class, Namespace, Operation (Mutator or Accessor), Target and Method Names

PCRE2 (PHP >=7.3)
The is helpful for parsing the symbolic reference of a PHP class object for validation or just determining the type and target for the operator. The expression is intended for working with classes and class methods, so the value on the right of the Paamayim Nekudotayim :: will alway be regarded as ...
Submitted by Jacob Canote - 4 years ago (Last modified 4 years ago)
0

Substitution

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

Email Validation

PCRE (PHP <7.3)
basic email validation
Submitted by anonymous - 4 years ago
1

Capturing everything up until the first _ or -

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

Tailwind CSS Color Regex

ECMAScript (JavaScript)
Just a little regex for the tailwind css color classes, It could be improved.
Submitted by anonymous - 4 years ago
1

Parse powers of string

ECMAScript (JavaScript)
When you want to parse a litteral math expression with power in and you want e^x to be e**x Use this regex!
Submitted by anonymous - 4 years ago
1

Regex Replace params by space when value is null

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

nb - legacy section with marginal note finder

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

nb - legacy section/subsection with marginal note finder

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

nb - legacy section/subsection finder

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

create or change one optional part to another

PCRE (PHP <7.3)
Skip match process when S exist, or remove optional left most target T, capture left and right part of T. Use case: if N is not exist, modify/change T to N, or create N. If any create or modify write operated, appending output N to right using subsitution "$1$2N".
Submitted by anonymous - 4 years ago
1

Browser Console - Format Specifier

ECMAScript (JavaScript)
Captures format specifiers commonly used in logging and console messages, as defined in the current whatwg/console spec: %s: Formats the value as a string %i: Formats the value as an integer %d: Formats the value as an integer %f: Formats the value as a floating point value...
Submitted by anonymous - 4 years ago
1

Browser Console - Format Specifier

ECMAScript (JavaScript)
Captures format specifiers commonly used in logging and console messages, as defined in the current whatwg/console spec: %s: Formats the value as a string %i: Formats the value as an integer %d: Formats the value as an integer %f: Formats the value as a floating point value...
Submitted by anonymous - 4 years ago
1

VS Code - Stylus Problem Matcher

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

1G

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

Ad Astra

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

Regular Expression to Validate File Path and Extension

ECMAScript (JavaScript)
Recently, I was looking for a regular expression to validate a file path and extension. I found several of them on Google, but none of them fit my requirement. So I decided to put together a version that suits my need. Here is the Regular Expression to validate the file path and extension and it is ...
Submitted by anonymous - 4 years ago
1

Star-Quantifier

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

user-agent

ECMAScript (JavaScript)
Http response header User-Agent
Submitted by anonymous - 4 years ago
1

user-agent

ECMAScript (JavaScript)
Http response header User-Agent
Submitted by anonymous - 4 years ago
1...297298299300301...900

Community Library Entry

1

Regular Expression
ECMAScript (JavaScript)

/
(?<!(?:[%]{2})*[%])((?<format_string>[%][s])|(?<format_int>[%][di])|(?<format_float>[%][f])|(?<format_obj>[%][o])|(?<format_js_obj>[%][O])|(?<format_css>[%][c]))
/
gm
Open regex in editor

Description

Captures format specifiers commonly used in logging and console messages, as defined in the current whatwg/console spec:

  • %s: Formats the value as a string
  • %i: Formats the value as an integer
  • %d: Formats the value as an integer
  • %f: Formats the value as a floating point value
  • %o: Formats the value as an expandable DOM element. As seen in the Elements panel
  • %O: Formats the value as an expandable JavaScript object
  • %c: Applies CSS style rules to the output string as specified by the second parameter
Submitted by anonymous - 4 years ago