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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 ...
This is the most extensive newsgroup hierarchy outside of the Big 8. Examples include: alt.atheism — discusses atheism; alt.binaries.slack — artwork created by and for the Church of the SubGenius. alt.config — creation of new newsgroups in the alt.* hierarchy. alt.sex — the first alt.* newsgroup for discussion of sexual topics.
Regexp searches are restricted on the server, so this template reduces the regex search footprint by using the prefix: filter every time, restricting the search domain to a namespace at most. The prefix: parameter can further filter a namespace by specifying pagenames that start with a given letter(s).
Rather than use the search box, where entering an equals sign and a pipe character, and "quotes around phrases" is a straightforward matter, it is still easiest to use a regex-based search-link template — {{}} or {{}} — on the page with sample data, because then you can focus on the target data there and on writing the regexp pattern.
To search Wikipedia titles with regex, use Grep. To search within the current page use the edit window: If source editing, use the "Search and replace" dialog by clicking the magnifying glass icon at the far right of the "Advanced" toolbar. If visual editing, type Ctrl-F to get the search box, then click the "(.*)" icon for regular expressions.
For example a search for "phenom" AND "lecture", with the templates Search link and regexp having the weighting score of the pages they are on multiplied by 1.5 and 2.25 respectively, ignoring all other templates (halting the addition of any score for any other template): phenom lecture boost-templates:"Template:search link|150% tlusage|225%"
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Greed, in regular expression context, describes the number of characters which will be matched (often also stated as "consumed") by a variable length portion of a regular expression – a token or group followed by a quantifier, which specifies a number (or range of numbers) of tokens. If the portion of the regular expression is "greedy", it ...