Regular Expressions 101

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Community Patterns

7

simple common lisp tokenizer

ECMAScript (JavaScript)
main symbols and comments are supported
Submitted by d4rw1n1s7@gmail.com - 10 years ago
5

parsing CSV file

PCRE (PHP <7.3)
It correctly handles simple values, empty values, and quoted values with commas inside.
Submitted by Viktor Lova aka nsinreal - 10 years ago
1

PCI Device

Python
no description available
Submitted by anonymous - 10 years ago
0

Number with two max possible decimals

ECMAScript (JavaScript)
For float type inputs.
Submitted by Juanma - https://github.com/juanmaa1414 - 10 years ago
1

Uppercase words

ECMAScript (JavaScript)
no description available
Submitted by MaaxZoom - 10 years ago
1

CamelCase parsing helper

Python
Helper regex for parsing CamelCase identifiers. Captures the first word of the identifier in group 1 and the rest in group 2. Iterate to consume the whole name. Works on fooBar, FooBar, and FOOBar.
Submitted by Kevin - 10 years ago
1

Nome articolo

PCRE (PHP <7.3)
Matcha il nome di un articolo (primo carattere, almeno 2 numeri=
Submitted by DD - 10 years ago
1

image.ext check

PCRE (PHP <7.3)
regexp for match images extension (png,jpg,jpeg,gif)
Submitted by dummy - 10 years ago
1

matching value of html src attribute

PCRE (PHP <7.3)
matching value of html src attribute
Submitted by junkuos - 10 years ago
1

Log entry Regex

PCRE (PHP <7.3)
no description available
Submitted by KP - 10 years ago
0

Anyone can help to generate the regular expression for the desc ?

ECMAScript (JavaScript)
Hi All, We got a database column which saving the table definition as patten string below. How can I extract the column & libelle information out of the string by using regular expression ? Thanks a lot ! c:{k:16:PERIODDEFINITION;c:{k:8:REVENUE1;c:{k:6:COLUMN;s:8:REVENUE1;k:7:LIBELLE;s:23:Revenue ...
Submitted by anonymous - 10 years ago
1

daily 204

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
0

webui

PCRE (PHP <7.3)
webui test
Submitted by Stelsy - 10 years ago
1

How to document a Regex? Example 2

PCRE (PHP <7.3)
How to document a Regex? Example 2: added documentation using (?#)
Submitted by Thomas - 10 years ago
1

How to document a regex? Example 1

PCRE (PHP <7.3)
How to document a regex? Example 1: undocumented Regex which works with my test string
Submitted by Thomas - 10 years ago
1

Credit Card finder

PCRE (PHP <7.3)
Captures credit card looking sequence of digits Luhn validation remains required as a complement.
Submitted by OP - 10 years ago
0

Multiple matches in php but only one in javascript

ECMAScript (JavaScript)
I have used this regexp succesfully in php with flags gmU and have multiple matches. In js there is no U flag and this only returns last match. Is there anything I can do to make this work similarly in javascript?
Submitted by yorogs - 10 years ago
1

cross platform file extension in node/io.js

ECMAScript (JavaScript)
This regex will match the file extension on any platform in node.js or io.js.
Submitted by Russell Dempsey - 10 years ago
5

URL

PCRE (PHP <7.3)
URL Description from Dr. M. G. @ Brookes
Submitted by anonymous - 10 years ago
0

TCP/UDP port number

PCRE (PHP <7.3)
validates TCP/UDP port number (1..65535)
Submitted by sanchox - 10 years ago
1...857858859860861...900

Community Library Entry

2

Regular Expression
PCRE (PHP <7.3)

/
^(?<User>[_a-z0-9-]+(\.[_a-z0-9-]+(?<GmailTag>\+[_a-z0-9-]+){1,1})*)@(?<Host>[a-z0-9-]+(\.[a-z0-9-]+)*\.[a-z]{2,4})$
/
i
Open regex in editor

Description

Get Gmail tag, user and domain of an email address

Submitted by Matías Pizarro González - 9 years ago