Regular Expressions 101

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Community Patterns

1

Music Notes

PCRE (PHP <7.3)
regex that identifies music notes written with A, B, ..., A#, C#, ... Ab, Bb, ... notation.
Submitted by anonymous - 9 years ago
1

http request

PCRE (PHP <7.3)
no description available
Submitted by Jonathan Rubin Yaniv - 9 years ago
1

?M ?L ?A

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

Grab filepaths from `source` in a bash script

ECMAScript (JavaScript)
Useful for making a build script that compiles all sources into one file.
Submitted by William George - 9 years ago
1

Fetch facebook id/slug from url

PCRE (PHP <7.3)
use part 6
Submitted by AlmogBaku - 9 years ago
1

Find Markdown links, but not image

PCRE (PHP <7.3)
no description available
Submitted by Chuck - 9 years ago
1

get request split parameters groups

PCRE (PHP <7.3)
no description available
Submitted by Roy - 9 years ago
1

match bot commands

PCRE (PHP <7.3)
match bot commands in the first at starting of line only egs - /hi
Submitted by anonymous - 9 years ago
1

sql select request

PCRE (PHP <7.3)
matching any SQL query starting by "SELECT foo,bar FROM fool,baz {...}" this one is the good one. first one have a matching alowing * in the FROM statement.
Submitted by klmmlk - 9 years ago
1

Tripmix selectors for 2015 reprocess

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

date Format

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

assertion (lookbehind and lookahead)

PCRE (PHP <7.3)
no description available
Submitted by adri et nico - 9 years ago
1

looking for a word of 4 letter

PCRE (PHP <7.3)
look for a word of 4 letter with the look behind and look ahead
Submitted by balzrog & torb500 - 9 years ago
1

Parse JS expression string

PCRE (PHP <7.3)
This expression is used to parse strings like category.slug==smartphone&&request.user_id==12
Submitted by Phaeton - 9 years ago
1

mail

PCRE (PHP <7.3)
mail
Submitted by anonymous - 9 years ago
1

Split user agent into groups

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

Setting Conversion - Original

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

input variable legnth string to group

PCRE (PHP <7.3)
select leading X digits, remove zero if present, and insert 6 or 7 digit length into a name group
Submitted by anonymous - 9 years ago
1

Backline

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

Replace comma in brackets

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1...466467468469470...638

Java RegExMatch Example

0

Regular Expression
Java 8

"
^(?<first>[a-z]+)\.(?<second>[a-z]+)$
"
i
Open regex in editor

Description

This is an example for stackoverflow

Submitted by anonymous - a year ago