Tool to search (or test) in a text, a message, or a document by regular expression / rational expression and extract matching substrings.
Regular Expression Search - dCode
Tag(s) : Data Processing
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A regular expression (or rational expression or regexp) is a string that describes a set of other possible strings in a precise syntax, and is used in computing for search, editing and text control.
Example: a(b|c)[a-z]{3}describes a set of 5 letters beginning with a, followed by b or c and 3 other letters between a and z, in small caps
Example: [0-9]{2}!? describes a set of 2-digit numbers from 00 to 99 followed or not by an exclamation mark
Regular expressions depend heavily on the type of text to be processed:
Lower case name: [a-z0-9_-]{3,16}
Date dd/mm/yyyy: \d{1,2}\/\d{1,2}\/\d{4}
Hexadecimal color: #?([A-Fa-f0-9]){3}(([A-Fa-f0-9]){3})?
E-mail address: [a-z0-9_\.-]+)@([\da-z\.-]+)\.([a-z\.]{2,6}
Internet address:https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?
IP address: (?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)
dCode retains ownership of the "Regular Expression Search" source code. Except explicit open source licence (indicated Creative Commons / free), the "Regular Expression Search" algorithm, the applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or the "Regular Expression Search" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and all data download, script, or API access for "Regular Expression Search" are not public, same for offline use on PC, mobile, tablet, iPhone or Android app!
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Cite as source (bibliography):
Regular Expression Search on dCode.fr [online website], retrieved on 2024-12-04,