Regular Expressions 101

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Community Patterns

6

json

PCRE (PHP <7.3)
{1:aa,2:bb,3:"aa:bb"}
Submitted by suat & umut - 10 years ago
6

Simple Number

ECMAScript (JavaScript)
Verifies Number is a negative/positive number. Number may be a decimal, but if it is, it requires at least one number before and after the decimal place. Decimal numbers may also be negative or positive. Only 1 decimal place is allowed.
Submitted by David P Smith - 9 years ago
6

Matching balanced parens, brackets, and braces

PCRE (PHP <7.3)
no description available
Submitted by Noah Luck Easterly - 11 years ago
6

Username:Password

PCRE (PHP <7.3)
Regex For finding username:password
Submitted by Ghost - 9 years ago
5

Hello world !

ECMAScript (JavaScript)
no description available
Submitted by Fedir RYKHTIK - 11 years ago
5

All href in a tag

PCRE (PHP <7.3)
Find all href in a tag
Submitted by Miron Yanovskiy - 11 years ago
5

FIlename sanitization regular expression

PCRE (PHP <7.3)
Useful for filename sanitization. Matches invalid filename characters. Can be used in preg_replace() calls.
Submitted by FractalizeR@yandex.ru - 9 years ago
6

reg Ex number range check

PCRE (PHP <7.3)
Hi, I am trying to get a reg ex that will test a number range and also allow european number convention like , for decimal point. I have this one for range check - ^(4-9{3}|1-9{4,5}|12{6}|30-4{5}|3500000)$ and I have this one for allow comma ^\s?([\d\.]+(\,\d{1,2})?|\,\d{1,2})\s$ but I need a comb...
Submitted by TimJ - 11 years ago
3

Match quoted strings, ignoring escaped quotes

PCRE (PHP <7.3)
Matches single or double quoted strings, and ignores backslash-escaped quotes within the string.
Submitted by Maddingue - 11 years ago
5

Numeric values greater than zero with decimal

PCRE (PHP <7.3)
Pattern that only accept numeric value and greater than zero with up to decimal places( you can change the decimal places just replace {1,2} depend on how many decimal places you like
Submitted by Eugene To - 9 years ago
7

Match text (not within html tag)

ECMAScript (JavaScript)
no description available
Submitted by Moistly - 10 years ago
7

if, else if, else condtion match

ECMAScript (JavaScript)
matches full if condition statment eg: if(condition){ ... } else if(condition){ ... }else{...
Submitted by Ivan Jakesevic - 10 years ago
7

Date validation

ECMAScript (JavaScript)
Besides leap year handling, this takes care of date validation in the yy-mm-dd format.
Submitted by anonymous - 9 years ago
4

1st TSV

PCRE (PHP <7.3)
no description available
Submitted by DynV - 12 years ago
4

Hungarian ANDOK system id

PCRE (PHP <7.3)
no description available
Submitted by Tana - 11 years ago
4

REGEX to parse IIS7 Log File into FluentD

PCRE (PHP <7.3)
This regex parses the entire line of the IIS log files (without detail on the AgentID) for usage into FluentD. Q&C - juan.carniglia@gmail.com
Submitted by Juan Carniglia - 11 years ago
4

AMEX, VISA, MASTERCARD, and DISCOVER REGEX

PCRE (PHP <7.3)
First pass at a way to find credit card data using regex.
Submitted by David Maislin - 10 years ago
4

Hibernate SQL Reductor

ECMAScript (JavaScript)
If you want to understand an SQL statement for Hibernate: this replaces the selected fields in an SQL statement generated by Hibernate by a shorthand, since you usually just care about the logic. E.g. it changes select foo0_.bla as bla1_3, foo0_.bar as bar1_3, foo0_.baz1_3 as baz1_3 from ... to sele...
Submitted by Hans-Peter Stoerr www.stoerr.net - 10 years ago
4

match brackets outside quotes

ECMAScript (JavaScript)
no description available
Submitted by Jerry - 9 years ago
4

Find Lat/Long Coordinate pair regex

ECMAScript (JavaScript)
no description available
Submitted by Mike - 9 years ago
1...885886887888889...901

Community Library Entry

0

Regular Expression
Python

r"
^# define which type of Sparkplug this is (?P<raw> (?P<namespace> sp (?P<payload_type>[AB]) v(?P<version>[0-9.]+)) / (?P<group_id>.+?) # Commands are for either Nodes, Devices, or State (meta) / (?P<command>([ND](BIRTH|DEATH|DATA|CMD)|STATE)) / (?P<node_id>.+?) # Device ID is optional (/ (?P<topic> (?P<device_id>.+?) # there can be more to the topic, though there shouldn't be (/ (?P<remaining_topic>.+))? ))?)$
"
gmx
Open regex in editor

Description

SparkplugB has a specific pattern to the MQTT topic string. Included here is the convention of metrics as a continuation of the topic string (although as an element in the binary payload it is not!)

Submitted by null-directory - 2 years ago