Using regular expressions/en - Revision history

FuzzyBot: Updating to match new version of source page

2025-10-14T13:25:09Z

Updating to match new version of source page

← Older revision		Revision as of 15:25, 14 October 2025
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	__TOC__		__TOC__

	Regular Expressions must start and finish with a forward slash ("/"). You can find a good library of regular expressions at ~~http~~://www.regexlib.net/. These patterns will almost always work if they are surrounded by forward slashes.		Regular Expressions must start and finish with a forward slash ("/"). You can find a good library of regular expressions at https://www.regexlib.net/. These patterns will almost always work if they are surrounded by forward slashes.

	To test your regex you can [https://regex101.com/ use this regex tester].		To test your regex you can [https://regex101.com/ use this regex tester].

2022-11-27T12:58:12Z

Updating to match new version of source page

← Older revision		Revision as of 14:58, 27 November 2022
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	In the beginning of this wiki section, we recommend you to use https://regex101.com/ to test/create regular expressions. You can also use https://www.regextester.com/ to create expressions in case you are unhappy about the first option.		In the beginning of this wiki section, we recommend you to use https://regex101.com/ to test/create regular expressions. You can also use https://www.regextester.com/ to create expressions in case you are unhappy about the first option. You can use https://extendsclass.com/regex-tester.html to visualize regular expressions.

2022-03-09T17:32:36Z

Updating to match new version of source page

← Older revision		Revision as of 19:32, 9 March 2022
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	/^.+?@.+?\..+$/		/^.+?@.+?\..+$/
	</source>		</source>

			If you want to validate one address per line, in a multiline long text field:
			<source lang="html">
			/^(((\w+([-+.']\w+)@\w+([-.]\w+)\.\w+([-.]\w+)(\r\n)?\n?)+))$/
			</source>

	At this outdated regex the domain name is limited to 3 characters which doesn't cover all available domains:		At this outdated regex the domain name is limited to 3 characters which doesn't cover all available domains:
	<source lang="html">		<source lang="html">

2019-07-19T19:00:12Z

Updating to match new version of source page

← Older revision		Revision as of 21:00, 19 July 2019
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	<source lang="html">/^[0-9]{5}([- /]?[0-9]{4})?$/</source>		<source lang="html">/^[0-9]{5}([- /]?[0-9]{4})?$/</source>

			For the postal code to start with zero, use:

			<source lang="html">/^[0-9]{5}(?:-[0-9]{4})?$/</source>

	==UK postcodes==		==UK postcodes==
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	Accepts numbers from 0 to 199, with 2 decimal optional:		Accepts numbers from 0 to 199, with 2 decimal optional:
	<source lang="html">/^([1][0-9][0-9]\|[1-9][0-9]\|[0-9])((\.)[0-9][0-9])?$/</source>		<source lang="html">/^([1][0-9][0-9]\|[1-9][0-9]\|[0-9])((\.)[0-9][0-9])?$/</source>

			==Number validation with thousand separator==
			Space as separator, no minus
			<source lang="html">/^(?!0)\d{1,3}(\ \d{3})*$/</source>
			Dot as separator, minus allowed
			<source lang="html">/^-?(?!0)\d{1,3}(\.\d{3})*$/</source>

	It forces two decimal points and accepts numbers from 1.00 to 999,999,999.00 with an optional comma delimiting thousands/millions		It forces two decimal points and accepts numbers from 1.00 to 999,999,999.00 with an optional comma delimiting thousands/millions
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	<source lang="html">/^[0][1-9]$\|^[0]1[0-2]$/</source>		<source lang="html">/^[0][1-9]$\|^[0]1[0-2]$/</source>


	=Minimum width (set to 3 in this example)=		=Minimum width (set to 3 in this example)=

2019-01-08T13:45:05Z

Updating to match new version of source page

2018-02-26T14:10:04Z

Updating to match new version of source page

2017-12-06T11:25:03Z

Updating to match new version of source page

← Older revision		Revision as of 13:25, 6 December 2017
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	<source>/^[1-9][0-9]{0,2}(?:,?[0-9]{3}){0,3}\.[0-9]{2}$/</source>		<source>/^[1-9][0-9]{0,2}(?:,?[0-9]{3}){0,3}\.[0-9]{2}$/</source>

			Similar to the above: Forces two decimal points but accepts a "0" before decimal separator ",".
			<source>/[0-9]{0,2}(?:,?[0-9]{3}){0,3}\.[0-9]{2}$/</source>

	Same as above but the two decimal points are optional:		Same as above but the two decimal points are optional:
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	==US currency (dollar sign and cents optional)==		==US currency (dollar sign and cents optional)==

	<source>/^\$?\d+(\.(\d{2}]]?$/</source>		<source>/^\$?\d+(\.(\d{2}))?$/</source>

			Check for comma usage:
			<source>/^\$?\d{1,3}(\d+(?!,))?(,\d{3})*(\.\d{2})?$/</source>

	==Swiss price==		==Swiss price==

2017-02-28T14:20:02Z

Updating to match new version of source page

2017-01-30T13:19:40Z

Updating to match new version of source page

2017-01-25T10:57:24Z

Importing a new version from external source

← Older revision		Revision as of 12:57, 25 January 2017
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	=Minimum width (set to 3 in this example)=		=Minimum width (set to 3 in this example)=

	<~~nowiki~~>/^.{3,}$/</~~nowiki~~>		<source>/^.{3,}$/</source>

	=Currency=		=Currency=