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A regular expression (shortened as regex or regexp), [1] sometimes referred to as rational expression, [2] [3] is a sequence of characters that specifies a match pattern in text. Usually such patterns are used by string-searching algorithms for "find" or "find and replace" operations on strings , or for input validation .
A regex search scans the text of each page on Wikipedia in real time, character by character, to find pages that match a specific sequence or pattern of characters. Unlike keyword searching, regex searching is by default case-sensitive, does not ignore punctuation, and operates directly on the page source (MediaWiki markup) rather than on the ...
Similarly, a search for the string |LT| (letters LT between two pipe symbols) will only return articles with lt. In order to search for terms that contain non-alphanumeric characters, a regex search must be used instead (using the \ escape character if required); for example, insource:/\|LT\|/ will successfully return all instances of |LT|.
A regex search scans the text of each page on Wikipedia in real time, character by character, to find pages that match a specific sequence or pattern of characters. Unlike keyword searching, regex searching is by default case-sensitive, does not ignore punctuation, and operates directly on the page source (MediaWiki markup) rather than on the ...
Regular expressions (or regex) are a common and very versatile programming technique for manipulating strings. On Wikipedia you can use a limited version of regex called a Lua pattern to select and modify bits of text from a string. The pattern is a piece of code describing what you are looking for in the string.
Only one of the five men was in court to hear the verdicts, an AFP reporter saw. A 22-year-old identified as Abushabab M., 22, faces a charge of attempted murder but his case has been postponed ...
in starting characters of the search box query, but not before a namespace; between words and phrases, except for greyspace phrases; Space characters are important only for pagenames (linksto, prefix, incategory, boost-templates, morelike). between two parameters (to delimit the argument) Colon : character: as a namespace, it means article space
An Iowa school is catching flak for having no “rizz.”. A teacher in a school district near the Nebraska border is being accused of banning the word short for charisma along with over two dozen ...