For .NET and Perl Regex: Instead of changing the Regex pattern, use the RegexOptions.Singleline (.NET) or "s" modifier (Perl). This enables "." to match newline.

Checking for "any character" using regular expressions in multiline text

by jsc42

\S does not / did not work on all versions of RegExp on Microsoft JScript / VBScript (sorry to be vague - I just recall having to avoid it because it was flakey). Instead you could try Start([.|\n]*)End (match everything except newline and newline)Update: Checked some old code: I could...

Collect and Compare Log Statistics using LogJoin

by Yuriy Nelipovich

The LogJoin tool helps to collect any unstructured data from text files and join it to a simple table representation for easy analysis.

Data Validation with Visual FA

by honey the codewitch

How to validate fields for things like data entry applications.

Decode quoted-printable data by Regex

by Andreas Gieriet

A "single-liner" to decode quoted-printable data.

Don't count spaces when counting words.

by Pete O'Hanlon

Over the last couple of days I've seen numerous examples of people posting about how to count words in a sentence. Disturbingly, these postings recommend suggest counting the number of spaces in the sentence and use that as the basis of a word count.You may be asking why this is a problem. Well,...

Don't count spaces when counting words.

by George Swan

The Regex method uses comma, full stop, hyphen, and apostrophe as word separators. The problem with this is that these characters are not universally used as separators. The hyphen is used to join two words. Could I suggest the following?string input = "Mr O'Brien-Smith arrived at 8.30 and...

Don't count spaces when counting words.

by Jacobs76

I also use a Regex expression to count words, which returns the same number of words as MS Word. I wrap the Regular Expression in a String extension method to make it easy to use.public static class StringExtensions{ /// /// WordCounts Regular Expression /// ...

Don't count spaces when counting words.

by FDW

This is less expensive:For any of the next strings, it gives 8:"Mr O'Brien-Smith arrived at 8.30 and spent \t $1,000.99"" Mr O'Brien-Smith arrived at 8.30 and spent \t $1,000.99""Mr O'Brien-Smith arrived at 8.30 and spent \t $1,000.99 "" Mr O'Brien-Smith arrived at 8.30 and...

Don't use RegEx to parse [X]HTML.

by Brady Kelly

Not only is this very good advice, but also an excellent read. Various reasons to not use RegEx on HTML.[^]

Email Validation in JavaScript

by killing the bug softly...

While developing a web page in fully HTML controls, you may not be able to use ASP.NET's controls, then you may need the help of some JavaScript function for validation.

Extract inner text from HTML using Regex

by jahmani

How to extract the inner text from HTML using a Regular Expression.

IIS & ASP.Net URL Rewriting

by Ed Nutting

IIS_ASPNet_URLRewriting

Javascript Replace All with Case Insensitive Matching

by M@dHatter

Custom Javascript replaceAll() using prototype with Case Insensitive Matching!

Manipulating CSS and HTML with RegEx

by FrostedSyntax

This tip provides you with several RegEx find and replace patterns to search through and alter HTML and CSS.

Parsing a Key-Value pair with a Regular Expression

by Marco Bertschi

A walk-through on how a Key-Value pair can be parsed using a PERL-compatible regex engine

Reasons to abandon (and replace) QRegExp in your Qt project

by Marco Bertschi

A quick overview why you should abandon Qt's QRegExp class and move on to use QRegularExpression

Regex for Cron Expressions

by Marijan Nikic

Regex that can be used for parsing Cron Expressions

Regex to Match Version Number Beginning with a Specific Digit

by Brian C Hart

Example of how to use the caret (^) in Regexes that have specific matching requirements

Regex to remove someone's overzealous use of regions.

by Daniel Vaughan

A Visual Studio regex to remove someone's overzealous use of regions in VS. Find and replace: (^.*\#region.*$)|(^.*\#endregion.*$) Remember to enable regular expressions in the Visual Studio find and replace dialog.

Registry Export File (.reg) Parser

by Henryk Filipowicz

A class to read and parse reg files

Regular Expression to Extract Inner Text from Anchor Tags

by Bryian Tan

How to extract the text from a hyperlink and preserve other HTML tags

Regular expression to validate email on client side that allow whitespace in both end using asp.net RegularExpressionValidator control

by Shahdat Hosain

RegEx for email validation that allow whitespace in both end

Regular Expression to Validate File Path and Extension

by Bryian Tan

Regular Expression to validate the file path and extension and it is compatible with JavaScript and ASP.NET

Remove all the HTML tags and display a plain text only inside (in case XML is not well formed)

by Hiren solanki

Remove HTML and get a plain text from inside

Remove all the HTML tags and display a plain text only inside (in case XML is not well formed)

by PIEBALDconsult

How about loading it into an XmlDocument and getting the InnerText? (Provided the HTML is well-formed XML, of course.)

Remove all the HTML tags and display a plain text only inside (in case XML is not well formed)

by JHoye

Consider using the open source HTML Agility Pack library (htmlagilitypack.codeplex.com).It lets you use XPATH queries to access very specific parts of an HMTL document, and the HTML does not have to be valid, well-formed XML. In addition to accessing the raw inner text of an element you can...

Remove all the HTML tags and display a plain text only inside (in case XML is not well formed)

by MarcoBot

NOTE: If you're really wanting plain text, then you should also be sure to decode the HTML entities (System.Web.HttpUtility.HtmlDecode()) on the resulting text, or you'll wind up with HTML/XML character entity text in your output, such as & and [ If you're going to immediately output the...

Remove all the HTML tags and display a plain text only inside (in case XML is not well formed)

by KevinAG

Sorry, but I have to vote this way down. Your regular expression (or @Chris's) is not robust enough for what I would consider "real world" data. Especially if this is used on any kind of public web site, I would be afraid of JavaScript injection attacks and other things (depending on its usage)....

Remove all the HTML tags and display a plain text only inside (in case XML is not well formed)

by Andreas Gieriet

I think the following Regex and HtmlDecode would do:string html = ...;string textonly = HttpUtility.HtmlDecode( Regex.Replace(html, @"|", ""));Any HTML construct that would not be stripped off properly by this?

Remove Illegal Chars from a File and/or Folder Name

by Joezer BH

A simple regex that replaces ALL the illegal filename or path chars

SQL Zip Compression, RegEx and Random Functions

by Brad Joss

SQL CLR Functions for Zip Compression and Regular Expression evaluations

Testing number inputs with special symbols

by Artur Ampilogov

Tip for testing numeric inputs with special Unicode symbols.

To remove or replace multiple special character from string using sql queries.

by santosh poojari

To remove or replace multiple special character from string using sql queries.

Use a Regex to parse a GUID (and keep it unchanged at runtime)

by Marco Bertschi

A short Reference on how you can validate a registry-formatted GUID with a regular expression

Validate and Find Addresses with RegEx

by FrostedSyntax

Learn how to use regular expressions to find addresses or parts of an address in a given string. These patterns can also be used to verify that a given string is a true address.