Regular Expressions 101

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Community Patterns

1

javas legal empty lines

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
2

java variable declaration

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
1

Apache Access Log pattern

Python
Apache Web server log file format following the standard
Submitted by Basil Tungekar - 10 years ago
1

java while

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
-2

IPv4

Python
allows for all legal IPv4 addresses
Submitted by anonymous - 10 years ago
0

Greedy + & * quantifires debug

PCRE (PHP <7.3)
/[123]+(123)*2/ Input: 1,2,3,4,5,6,7,8,9,0,10,11,12,13,14,15,16 Find: 12
Submitted by Tomer Levi - 10 years ago
1

catch or match URL or URI

PCRE (PHP <7.3)
any more? tell me by email.
Submitted by CSnowstar(997596@gmail.com) - 10 years ago
1

Find sentence start

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
1

英数記号あり（大文字小文字の区別なし）で、かつ8文字以上

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
-2

Validate credit card numbers

PCRE (PHP <7.3)
Visa, MasterCard, American Express, Diners Club, Discover, JCB
Submitted by www.regular-expressions.info/creditcard.html - 10 years ago
0

Regex Group Regex

PCRE (PHP <7.3)
Working on this regex so that I can use it to parse regular expressions and get the group info from them
Submitted by jparish1977@gmail.com - 10 years ago
0

simplewords

PCRE (PHP <7.3)
words
Submitted by glin - 10 years ago
1

MYV_POSTPAY_ACCESSLOG

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

Update for bne_interface_cols_tl

PCRE (PHP <7.3)
Necessary because of Bug in Web-Interface
Submitted by anonymous - 10 years ago
-1

date format for year 2000 above

Python
no description available
Submitted by anonymous - 10 years ago
1

hstore

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
2

JSON validator

PCRE (PHP <7.3)
Takes a JSON string and captures interesting information in the named capturing groups: (o: last object, a: last array, s: last string, n: last number, c: last comma before optional whitespace, d: same as c, but with a colon instead of a comma, v: last value)
Submitted by luis140219 on GitHub and Sourceforge - 10 years ago
0

Levi test

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
35

IP Address validator

ECMAScript (JavaScript)
Validates IPv4 IP Address
Submitted by krzysp - 10 years ago
1

keep versions

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
1...838839840841842...902

Community Library Entry

-2

Regular Expression
ECMAScript (JavaScript)

/
^(((\*|(\d\d?))(\/\d\d?)?)|(\d\d?\-\d\d?))(,(((\*|(\d\d?))(\/\d\d?)?)|(\d\d?\-\d\d?)))*\s(((\*|(\d\d?))(\/\d\d?)?)|(\d\d?\-\d\d?))(,(((\*|(\d\d?))(\/\d\d?)?)|(\d\d?\-\d\d?)))*\s(((\*|(\d\d?))(\/\d\d?)?)|(\d\d?\-\d\d?))(,(((\*|(\d\d?))(\/\d\d?)?)|(\d\d?\-\d\d?)))*\s(\?|(((\*|(\d\d?L?))(\/\d\d?)?)|(\d\d?L?\-\d\d?L?)|L|(\d\d?W))(,(((\*|(\d\d?L?))(\/\d\d?)?)|(\d\d?L?\-\d\d?L?)|L|(\d\d?W)))*)\s(((\*|(\d|10|11|12|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC))(\/\d\d?)?)|((\d|10|11|12|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)\-(\d|10|11|12|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)))(,(((\*|(\d|10|11|12|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC))(\/\d\d?)?)|((\d|10|11|12|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)\-(\d|10|11|12|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC))))*\s(((\*|([0-7]|MON|TUE|WED|THU|FRI|SAT|SUN)L?)(\/\d\d?)?)|(([0-7]|MON|TUE|WED|THU|FRI|SAT|SUN)L?\-([0-7]|MON|TUE|WED|THU|FRI|SAT|SUN)L?)|([0-7]|MON|TUE|WED|THU|FRI|SAT|SUN)L?#([1-5]))(,(((\*|([0-7]|MON|TUE|WED|THU|FRI|SAT|SUN)L?)(\/\d\d?)?)|(([0-7]|MON|TUE|WED|THU|FRI|SAT|SUN)L?\-([0-7]|MON|TUE|WED|THU|FRI|SAT|SUN)L?)|([0-7]|MON|TUE|WED|THU|FRI|SAT|SUN)L?#([1-5])))*$
/
gmi
Open regex in editor

Description

This is a relaxed cron validation, meaning that any valid cron expression should pass this; but not anything that passes regex validation is a good cron expression. Used as preliminary validation in web ui.

Supports all special characters. Includes seconds field.

Submitted by enlait - 10 years ago