Regular Expressions 101

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Community Patterns

2

Parse string like: "[!type|name] http://some.url/to.file"

ECMAScript (JavaScript)
http://some.url/to.file [!css|name]http://some.url/to.file [!css] http://some.url/to.file ...
Submitted by Max Chuhryaev - 9 years ago
2

Strong password

ECMAScript (JavaScript)
Password require: lowercase, uppercase, symbol, not consecutive same letter/number, and not some specific words
Submitted by @cadete_kdt - 9 years ago
2

Fix Card Def

PCRE (PHP <7.3)
no description available
Submitted by yyrkroon - 9 years ago
2

emoji short-code detection

ECMAScript (JavaScript)
Detects the short-code words for emojis (a la jemoji).
Submitted by Eric McCormick - 9 years ago
2

bye

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

LUN UID

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
2

Parse Cabrillo Amateur Radio Log Record

PCRE (PHP <7.3)
no description available
Submitted by NY4I - 9 years ago
2

ofstream ifstream file C++

Python
match ofstream of("test.txt", ios_base::app); ofstream of("test.txt", ios_base::trunc); ofstream of("test.txt", ios_base::binary);
Submitted by Денис Суховерхов - 9 years ago
2

css class finder

PCRE (PHP <7.3)
این عبارت منظم یک کلاس سی اس اس را پیدا می کند
Submitted by ehsan abbasi - 9 years ago
2

comment

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
2

Regex to find if/while constructs

PCRE (PHP <7.3)
Find if/while in JS code written in PCRE
Submitted by Deepak Subramanian - 9 years ago
2

Find url('./xxx)

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
2

Password Validation

Python
Checks for password containing at least 1 Upper case, 1 lower case, 1 digit and 1 special character, all together with a length of at least 8. (This pattern allows any order of the requried elements, other than what was been distributed here before)
Submitted by Tom Spielvogel - 9 years ago
2

Bitstream with not more than 4 repeating bits

PCRE (PHP <7.3)
0111100 will be matched whereas 0111110 will not. Change \1{4} to max repeating count. For max 9 repeating -> \1{9}
Submitted by anonymous - 9 years ago
2

ukrainian alphabet

PCRE (PHP <7.3)
no description available
Submitted by benderlio - 9 years ago
2

Date or N/A

ECMAScript (JavaScript)
Accepts Date or not applicable string.
Submitted by Toufique Ahmed - 9 years ago
2

test

Python
no description available
Submitted by anonymous - 9 years ago
2

Email Cleanup

PCRE (PHP <7.3)
Working on email link cleanup.
Submitted by anonymous - 9 years ago
2

extract hostname

PCRE (PHP <7.3)
extracts hostname from url
Submitted by Kristine Poghosyan - 9 years ago
2

problem for homework

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
1...2526272829...901

Community Library Entry

1

Regular Expression
PCRE2 (PHP >=7.3)

/
(?(DEFINE) (?<tagnames> @CUSTOM-AT-1 | @CUSTOM-AT-2) (?<number> -? (?= [1-9]|0(?!\d) ) \d+ (\.\d+)? ([eE] [+-]? \d+)? ) (?<boolean> true | false | null ) (?<string> \" ([^\"\\\\]* | \\\\ [\"\\\\bfnrt\/] | \\\\ u [0-9a-f]{4} )* \" ) (?<array> \[ (?: (?&json) (?: , (?&json) )* )? \s* \] ) (?<pair> \s* (?&string) \s* : (?&json) ) (?<object> \{ (?: (?&pair) (?: , (?&pair) )* )? \s* \} ) (?<fieldname> [a-zA-Z0-9\_\-]+ ) (?<json> \s* (?: (?&number) | (?&boolean) | (?&string) | (?&array) | (?&object) ) ) (?<fieldlist> (?: (?&fieldname) (?: , (?&fieldname) )+ )+ ) ) (?<actiontag> (?&tagnames) ) (?:\= (?'params' (?: (?'match_list'(?&fieldlist)) | (?'match_json'(?&json)) | (?'match_string'(?:[[:alnum:]\_\-]+)) ) ) )
/
mixg
Open regex in editor

Description

A parser for actiontags (in the format of <code>@FOO=BAR or @FOO={"param":"bar"}</code>. Returns the match array with the key equal to the tag and an array containing keys of 'params, params_json and params_text'

Based on: https://regex101.com/r/fL2rM8/5

Submitted by anonymous - 8 months ago