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This module runs unit tests to compare template output with expected text. In addition, the module can output the results of expanding templates.
This is the template test cases page for the sandbox of Template:Regex/string Purge this page to update the examples. If there are many examples of a complicated template, later ones may break due to limits in MediaWiki ; see the HTML comment " NewPP limit report " in the rendered page.
Regular Expression Flavor Comparison – Detailed comparison of the most popular regular expression flavors; Regexp Syntax Summary; Online Regular Expression Testing – with support for Java, JavaScript, .Net, PHP, Python and Ruby; Implementing Regular Expressions – series of articles by Russ Cox, author of RE2; Regular Expression Engines
var x1 = 0; // A global variable, because it is not in any function let x2 = 0; // Also global, this time because it is not in any block function f {var z = 'foxes', r = 'birds'; // 2 local variables m = 'fish'; // global, because it wasn't declared anywhere before function child {var r = 'monkeys'; // This variable is local and does not affect the "birds" r of the parent function. z ...
Regular expressions are used in search engines, in search and replace dialogs of word processors and text editors, in text processing utilities such as sed and AWK, and in lexical analysis. Regular expressions are supported in many programming languages. Library implementations are often called an "engine", [4] [5] and many of these are ...
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Converting the formatted text to wikicode; Wikicode syntax highlighting; Regular expression search and replace and find-as-you-type; Server-independent Show preview and Show changes; Fullscreen editing mode; Single-click fixing of common mistakes; History for summary, search, and replace fields; Search/replace box that supports regular expressions.
This template uses {{#invoke:String|match}} to display text which indicates if a string matches a pattern. It is designed for use in documentation. It is designed for use in documentation. Usage