Regular Expressions 101

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17

Capture comma separated numbers

PCRE (PHP <7.3)
Capture comma separated numbers, no matter if there are spaces before or after the commas.
Submitted by Fernando Nunes - 9 years ago
86

Password Validation

ECMAScript (JavaScript)
Checks that a password has a minimum of 6 characters, at least 1 uppercase letter, 1 lowercase letter, and 1 number with no spaces.
Submitted by Christian Klemp - 9 years ago
31

ninite

PCRE (PHP <7.3)
no description available
Submitted by peek - 9 years ago
29

Wrap long string to spec length

PCRE (PHP <7.3)
no description available
Submitted by fullpipe - 11 years ago
18

Between tags content

PCRE (PHP <7.3)
no description available
Submitted by Agustín Bouillet - 8 years ago
11

find all link(<a>) tags expect your links in href attribute

ECMAScript (JavaScript)
YourLink - not found AnotherLink - found
Submitted by KoT - 9 years ago
16

IPv4

PCRE (PHP <7.3)
no description available
Submitted by robwa - 8 years ago
10

Just validate one sequence of

PCRE (PHP <7.3)
sdfs sdfs FLBREV00022230 dsfsdfs sdfsf FLBREV00022234 In this case is false
Submitted by Fiipe - 9 years ago
10

Valid Telephone Number

ECMAScript (JavaScript)
This regex validates varying types of telephone numbers.
Submitted by Adam Recvlohe - 8 years ago
6

Replace caracters not inside HTM tags

ECMAScript (JavaScript)
Select a character (or string) ingnoring if that element is inside the HTML tags. Useful to apply html tags using replace.
Submitted by Alex5B - 9 years ago
6

IOS3166 Country Code Identification REGEX

Python
IOS3166 Country Code Identification REGEX
Submitted by theitgeek@recu.org.uk - 9 years ago
29

CSV line parsing

PCRE (PHP <7.3)
Captures all fields from a CSV file's line. Can be customized with user-defined field separator and protecting character.
Submitted by Various - 10 years ago
52

Disorted Email Addresses

PCRE (PHP <7.3)
Matches distorted email addresses and converts them back to real ones.
Submitted by dislick - 11 years ago
7

Max - URL Extract

PCRE (PHP <7.3)
no description available
Submitted by Ayush - 8 years ago
18

Date: DD-MM-YYYY hh:mm:ss

Recommended
PCRE (PHP <7.3)
Validate and capture dateTime parts, includes validation for leap years, range 1000-2999. Fixed bug
Submitted by Ka. - 11 years ago
25

Quote Macthing with escape

ECMAScript (JavaScript)
Matches text within quotes (", ') and escapes the charecters.
Submitted by Vihan Bhargava - 9 years ago
106

ECMAScript/JavaScript trim

ECMAScript (JavaScript)
Trim leading and trailing whitespace from a string.
Submitted by fp - 11 years ago (Last modified 5 days ago)
11

html color match: transparent, #fff, #123456, rgb, rgba, hsl, hsla

ECMAScript (JavaScript)
This may be useful or not to test whether a given string is a valid (more or less) html color value. It matches color values such as: #123 - short hex color value #123456 - hex color value rgb(255,255,0) - rgb color value rgba(255,255,0,1.0) - rgba color value hsl(360,100%,100%) - hsl color value...
Submitted by grouch - 9 years ago
22

UK Postcode Checker

PCRE (PHP <7.3)
Checks for valid UK/British postcodes. There was another on here that had for some reason been upvoted, but it was actually incorrect as it worked on none of my valid own postcodes! Namely that it assumed two letters and a number (BS3) when you can have variations (M20). Allows for an optional spac...
Submitted by MaffooBristol - 9 years ago
34

Google like regex

ECMAScript (JavaScript)
Attempts to mimic Google search box behavior, returning an array with the separated search strings (that keep the +/- indicator for following operations)
Submitted by mettjus - 10 years ago
123456...879

Validates argentinian telephone numbers

0

Regular Expression
Python

r"
^(?P<country>\+?54)?\s?(?:(?P<mobile>9)?\s?(?P<areacode>11|220|221|223|230|236|237|249|260|261|263|264|266|280|291|294|297|298|299|336|341|342|343|345|348|351|353|358|362|364|370|376|379|380|381|383|385|387|388|2202|2221|2223|2224|2225|2226|2227|2229|2241|2242|2243|2244|2245|2246|2252|2254|2255|2257|2261|2262|2264|2265|2266|2267|2268|2271|2272|2273|2274|2281|2283|2284|2285|2286|2291|2292|2296|2297|2302|2314|2316|2317|2320|2323|2324|2325|2326|2331|2333|2334|2335|2336|2337|2338|2342|2343|2344|2345|2346|2352|2353|2354|2355|2356|2357|2358|2392|2393|2394|2395|2396|2473|2474|2475|2477|2478|2622|2624|2625|2626|2646|2647|2648|2651|2652|2655|2656|2657|2658|2901|2902|2903|2920|2921|2922|2923|2924|2925|2926|2927|2928|2929|2931|2932|2933|2934|2935|2936|2940|2942|2945|2946|2948|2952|2953|2954|2962|2963|2964|2966|2972|2982|2983|3327|3329|3382|3385|3387|3388|3400|3401|3402|3404|3405|3406|3407|3408|3409|3435|3436|3437|3438|3442|3444|3445|3446|3447|3454|3455|3456|3458|3460|3462|3463|3464|3465|3466|3467|3468|3469|3471|3472|3476|3482|3483|3487|3489|3491|3492|3493|3496|3497|3498|3521|3522|3524|3525|3532|3533|3537|3541|3542|3543|3544|3546|3547|3548|3549|3562|3563|3564|3571|3572|3573|3574|3575|3576|3582|3583|3584|3585|3711|3715|3716|3718|3721|3725|3731|3734|3735|3741|3743|3751|3754|3755|3756|3757|3758|3772|3773|3774|3775|3777|3781|3782|3786|3821|3825|3826|3827|3832|3835|3837|3838|3841|3843|3844|3845|3846|3854|3855|3856|3857|3858|3861|3862|3863|3865|3867|3868|3869|3873|3876|3877|3878|3885|3886|3887|3888|3891|3892|3894)|(?P<mobileprefix>15))?\s?(?P<number>[\d\-\.]+)$
"
Open regex in editor

Description

To validate a number with this regular expression is mandatory to have the number group with only digits. You can modify the number group to accept spaces, hyphens, and dots with something like this: (?P<number>[\d-.]+).

Valid examples +54 9 11 50165564 54 2268 201232 15 50165564 11 50165564 ...

Submitted by Agustín Bouillet - 8 years ago