The BNF rules from RFC 5322 transformed to PCRE by Nikita Popov and described in the post http://nikic.github.io/2012/06/15/The-true-power-of-regular-expressions.html.

With this C# regex, you can easily match/Parse Nested HTML tags. Example input: someTitle SomeHeader anotherHeader HelloWorld Output: anotherHeader HelloWorld string pattern = $@"{ startP }((?'nested'{ openP })|{ closeP }(?'-nested')|\w\W]?){ closeP }"; *'StartP' (Must include open tag), example: <div id="target" *'openP' example: <div *'closeP' example: </div References: [In Depth with RegEx Matching Nested Constructions In Depth with .NET RegEx Balanced Grouping Regular expression matches closed HTML tags (nesting is supported)

Select a character (or string) ingnoring if that element is inside the HTML tags. Useful to apply html tags using replace.

This may be useful or not to test whether a given string is a valid (more or less) html color value. It matches color values such as: #123 - short hex color value #123456 - hex color value rgb(255,255,0) - rgb color value rgba(255,255,0,1.0) - rgba color value hsl(360,100%,100%) - hsl color value hsla(360,100%,100%,0.5334) - hsla color value Regex allows whitespaces between i.e. rgb and (, also between numbers and commas, but not in value like 55% between number and percentage. To change this behaviour simply remove \s*? from appriopriate places.

Usually MSWord HTML exports

This regex will identify all html start and end tags.

Strip all HTML tags from a string. HTML tags are enclosed in . The regex will be applied on a line-by-line basis, meaning partial tags will need to be handled by the regex. Don't worry about opening or closing tags; we just want to get rid of them all. Note: This task is meant to be a learning exercise, and not necessarily the best way to parse HTML

Parse shortcodes, its attributes values and html

Match any url in text or html (http, https)

Grabs all HTML tags

This regex is used to remove HTML tag on string

Validates Credit Card Numbers of different type. Supports Visa, MasterCard, American Express, Diners Club, Discover and JCB Taken from http://www.regular-expressions.info/creditcard.html If you want to support only a particular type, customise it based on following. ^(?:40-9]{12}(?:[0-9]{3})? # Visa | 5[1-5{14} # MasterCard | 347{13} # American Express | 3(?:00-5]|[68)[0-9]{11} # Diners Club | 6(?:011|5[0-9]{2})[0-9]{12} # Discover | (?:2131|1800|35\d{3})\d{11} # JCB )$

This pulls out all the fields from a standard xferlog format log. Format specified here http://www.castaglia.org/proftpd/doc/xferlog.html

Replace non-ending string \n by the HTML tag

Capture src attribute of HTML image tags

https://stackoverflow.com/questions/5312349/minifying-final-html-output-using-regular-expressions-with-codeigniter Thanks to @Alan Moore

Click "open regex in editor" to open regex. Open a webpage containing Rapidgator Links - Either rg.to or rapidgator.net Right-click anywhere on the page and select "view page source" Copy the HTML markup containing the Rapidgator links to regex101.com Paste the HTML markup and set mode to match Locate the match information section and click on the Export icon Select "Plain Text" from the popup modal side menu Copy your Rapidgator Links without stress. If it's helpful to you, don't forget to upvote so that others can benefit as well.

converts HTML: This is hyperlink. You can click this. to Markup: This is hyperlink. You can click this. which renders like this: This is hyperlink. You can click this.

SvelteComponent Class Directive Matching Also supports TailwindCSS-style @apply directive for the class value. class:directive={boolean} Svelte allows us to provide a "class directive", or a class name in the form of class:NAME={boolean}. If we place a boolean (or function that returns a boolean) as its value, it will add the class "NAME" to the component when it returns true, or omit it when false. This is extremely useful for navigation components, and I use it all the time to highlight active links in my UX/UI development process. ABC XYZ Flexible matching for the class attribute on both Svelte Components and HTML Elements.

This regex will help you to parse html tag. Example Title Output

Match links (emails included) in string Replace it with HTML links

get special tag contains html link

var fileExtensionPatter = /\.([0-9a-z]+)(?=[?#])|(\.)(?:[\w]+)$/ var ma1 = 'css/global.css?v=1.2'.match(fileExtensionPatter)[0]; console.log(ma1); // return .css var ma2 = 'index.html?a=param'.match(fileExtensionPatter)[0]; console.log(ma2); // return .html var ma3 = 'default.aspx?'.match(fileExtensionPatter)[0]; console.log(ma3); // return .aspx var ma4 = 'pages.jsp#firstTab'.match(fileExtensionPatter)[0]; console.log(ma4); // return .jsp var ma5 = 'jquery.min.js'.match(fileExtensionPatter)[0]; console.log(ma5); // return .js var ma6 = 'file.123'.match(fileExtensionPatter)[0]; console.log(ma6); // return .123

Based on http://www.regular-expressions.info/creditcard.html This example includes test strings. This only validates the pattern, and not whether the credit card number passes a checksum validation. See the Luhn algorithm for details https://en.wikipedia.org/wiki/Luhn_algorithm For an implementation in Lasso, see https://github.com/stevepiercy/sp_valid_creditcard

Given the HTML of an alias's control panel, apply the XPath "//span[@class='maintext']". The second result returned can be parsed by this regex to yield the most pertinent field names and their values.

See http://tools.ietf.org/html/rfc2045#section-5.1

Groups HTML comments that are between .

Prevent matching in markup attributes

Break a URL into parts: protocol url path get parameters hash

This regex replace the second tag content which has the prefix ":". If you want to replace the third, just increase the statement {1} to {2}, and so go on.

Removes empty HTML tags. Was needed for old input clean-up and to keep a HTML parses from crashing. Looking for improvement on bottom test.

Searches for hex colors in HTML code.

matching value of html src attribute

Good for valid numbers for international currencies - checks for accepted variations for thousands and decimal separators http://docs.oracle.com/cd/E19455-01/806-0169/overview-9/index.html

Match any email, according to the grammer in RFC 5322, found at http://tools.ietf.org/html/rfc5322

expression to look for words in innerText & not in html tags as id or class or style name

Useful for cleaning old html code from tags

Strip specific HTML tags from a string—opposite of PHP's strip_tags(). Replace letter 'p' with your tag name. Using PHP preg_replace(), example: preg_replace('/(]>)(.?)()|(]*>)/i', '$2', $string);

Common regex for use with xml/html files

dear all, i am a regex beginner, so please be gentle :) we have lines of log contents delimited by a pipe char. is it possible to fetch the content between the 5th and the 6th delimiter, ignoring the values in between? example log line: 2014-05-21_06:50:59|10.128.3.20|-|-|-|GET|/home.html|-|6 I'd like to do something like result = line.split('|')[6]. unfortunatelly I can't write code but only a regex selector. help is highly appreciated.