Regular Expressions 101

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Community Patterns

0

CAN2-OK-1

Python
no description available
Submitted by anonymous - 5 years ago
0

CAN1-v2-OK-1

Python
no description available
Submitted by anonymous - 5 years ago
0

tilak punctuation regex

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

oid test

PCRE (PHP <7.3)
test if a string represents a valid oid
Submitted by anonymous - 5 years ago
0

WaitForKey

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Integers

PCRE (PHP <7.3)
Integers with no leading zeros ie. 0234 or -0486 is invalid
Submitted by anonymous - 5 years ago
0

Floats

PCRE (PHP <7.3)
Floats including integers that end with "f"
Submitted by anonymous - 5 years ago
0

Floats

PCRE (PHP <7.3)
Floats including integers that end with "f" Version 2: value will exclude "f"
Submitted by anonymous - 5 years ago
0

Extract substring from a string

PCRE (PHP <7.3)
For use with sed you need to escape the parentheses \(
Submitted by anonymous - 5 years ago
0

Fecha en formato yyyy-mm-dd ----- yyyy-m-d ----- yyyy/mm/dd ----- yyyy/m/dd

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Hastag #tag

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Extract URI from LinkedIn CV string

Python
no description available
Submitted by anonymous - 5 years ago
0

Get value between q="...... "

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 5 years ago
0

Hugo Version Number

Python
Get the version number (like 0.69.2) from the "hugo version" output. Hugo is a static site generator (see https://gohugo.io).
Submitted by anonymous - 5 years ago
0

20200510

Python
no description available
Submitted by anonymous - 5 years ago
0

Ährenlese

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Cognito Validation Email Message

PCRE (PHP <7.3)
Cognito Validation Email Message.
Submitted by anonymous - 5 years ago
0

Return error description from custom application log

Python
Returning the error description after 'R' and before '('
Submitted by anonymous - 5 years ago
0

Clockify time entry

ECMAScript (JavaScript)
Clockify time extry grouping in hours, minutes, and seconds.
Submitted by anonymous - 5 years ago
0

Map regex

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
1...296297298299300...902

Community Library Entry

1

Regular Expression
PCRE2 (PHP >=7.3)

/
(\b(?'first_word'[A-Z](?!([A-Z0-9]*\b|[[:alnum:]]*_)(?# the word isn't in all caps and doesn't contain underscores))(?:[a-z0-9]*)))|(\G(?'trailing_word'[A-Z][a-z0-9]*))
/
gm
Open regex in editor

Description

Works with many forms of alphanumeric PascalCase

  • PascalCase
  • Pascal
  • PascalCaseCase
  • Pascal684Case (pascal684_case)
  • Pas45calCase (pas45cal_case)
  • PascalCaseCaseCase (with as many words as you like)
  • PPascal (p_pascal)
  • PascalCCase (pascal_c_case)

What isn't matched

  • camelCase
  • words with '_' underscores in them (SCREAMING_SNAKE_CASE, Pascal_Snake_Case)
  • words without lowercase letters (ALLCAPS, ALL54CAPS)

Limitations

  • all 'Capitalized' words are matched and substituted to 'capitalized'
  • PascalCase with non-alphanumeric characters isn't matched
Submitted by inesvar - 10 months ago