Regular Expressions

regular-expression

Great Reads

Ultra-Rapid PHP Application Development

by Christoph Buenger

Describes PHP application development with the free Scavix Web Development Framework (Scavix-WDF).

How to Build a Regex Engine in C#

by honey the codewitch

Build a feature rich, non-backtracking regular expression engine and code generator in C#

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.

A Regular Expression Engine in C#

by honey the codewitch

A Non-Backtracking Regular Expression Engine for .NET (Core)

Latest Articles

Text Template Transformation Engine / Code Generation Tool in C#

by Ryan S White

A simple drop-in function that provides T4 like template based text generation.

Regex for Cron Expressions

by Marijan Nikic

Regex that can be used for parsing Cron Expressions

Fun With State Machines: Incrementally Parsing Numbers Using Hacked Regex

by honey the codewitch

Hoodwink your computer into doing your work for you using regular expressions

StringBox Control with Keystroke Validation

by siliconvideo

This StringBox control implements keystroke validation using regular expressions and a touch of glue logic

All Articles

top

Regular Expressions

Ultra-Rapid PHP Application Development

31 Oct 2014

Christoph Buenger

Describes PHP application development with the free Scavix Web Development Framework (Scavix-WDF).

SQL

HTML

Javascript

MySQL

How to Build a Regex Engine in C#

21 Nov 2019

honey the codewitch

Build a feature rich, non-backtracking regular expression engine and code generator in C#

Regex to remove someone's overzealous use of regions.

23 Nov 2009

Daniel Vaughan

Visual-Studio

regular-expression

Advanced Regex.Replace handling

7 May 2010

Chris Trelawny-Ross

I agree it would be nice to be able to use the group name in the switch; unfortunately the Group object doesn't have a Name property (and neither does its base class Capture) so the best you'll be able to do is the following:string ReplaceMatch(Match m) { if...

regular-expression

A Regular Expression Engine in C#

31 Mar 2019

honey the codewitch

A Non-Backtracking Regular Expression Engine for .NET (Core)

Advanced Regex.Replace handling

3 May 2010

OriginalGriff

1 alternative

I am using a Regex with a MatchEvaluator delegate to process a format string, e.g. "Time: %t, bytes: %b" would replace the "%t" with a time stamp, and the "%b" with a bytes count. Needless to say, there are loads of other options!To do this, I use: Regex regex = new...

regular-expression

WiFi Password Recovery and Management Tool

27 Sep 2019

Mohamed Kalmoua

In this article, I will discuss a WiFi password recovery and management tool that I created in WPF using Visual Studio 2019.

Fun With State Machines: Incrementally Parsing Numbers Using Hacked Regex

2 Jan 2021

honey the codewitch

Hoodwink your computer into doing your work for you using regular expressions

Help with a Regular Expression

15 Jun 2012

VJ Reddy

I think the matching with prefix and suffix options of Regex can be used to extract only the required value from the parentheses as shown below:string text = @"STRING[261] Directory(\FTP\OSP_003\)\nSTRING[9] FileName(SysParaI)\nSTRING[4] FileExtension(002)";Match match = Regex.Match(text,...

regular-expression

Don't count spaces when counting words.

18 Oct 2011

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...

regular-expression

ASP.NET Password Strength Regular Expression

5 Jan 2011

Bryian Tan

ASP.NET Password Strength Regular Expression. Customize n numbers of upper case, digits, special characters.

regular-expression

Regular Expression to match a definite pattern on each occurence.

12 Jun 2012

OriginalGriff

Try:/[sz2]Th...

regular-expression

Lex: An Optimizing Compiler for Regular Expressions

3 Feb 2020

honey the codewitch

A Pike virtual machine and optimizing compiler for regular expressions using an NFA engine

How to Remove opening tags if ending tags are not there ?

20 Jan 2011

Rob Philpott

OK - this is a bit of algorithmic fun and I'll tell you how I'd go about it, but you'll have to figure the code out yourself.You need to combine a forward reading parser with a recursive object or functional call. On every open tag you need to go one level further of recursion, storing the...

regular-expression

How can I split string with expected parenthesis ?

23 Apr 2015

CHill60

Essentially you are attempting to parse the grammar in the string.See this CP article Parsing Expression Grammar Support for C# 3.0 Part 1 - PEG Lib and Parser Generator[^] which is also referenced from this post[^] that includes some alternative ideas.Here's an academic paper[^] on the...

.NET

regular-expression

Regex link matching on raw text

2 May 2016

George Jonsson

You can try thishttp:(?:(?!http:).)*It will match from http: up to the next occurence, but not including it.The result of your sample string will be 3 separate matches.[UPDATE]Forgot the https variant:http(?:s)?:(?:(?!http(?:s)?:).)*

regular-expression

How to Make an LL(1) Parser: Lesson 2

14 Jul 2019

honey the codewitch

Creating a simple parser in 3 easy lessons

FA: A Unicode Automata and Regular Expression Engine

1 Feb 2020

honey the codewitch

Add non-backtracking fast DFA regular expression and finite state automata to your projects

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

19 Dec 2010

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)

20 Dec 2010

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...

How do I form this regex?

23 Dec 2010

OriginalGriff

Try([a-zA-z]...

regular-expression

Stuck with string replacement

14 Apr 2012

VJ Reddy

One option is to split the original string at the location of ? and reconstruct using @param as shown belowSub Main Dim statement As String = "INSERT INTO X (a,b,c) values (?,?,?)" Dim statements As String() = statement.Split("?"C) 'Construct a stringbuilder Dim sb As New...

string

regular-expression

Help with a Regular Expression

15 Jun 2012

Clifford Nelson

You can go simple and justRegex r = new Regex(@"$.*$");var e = r.Matches(s);e is a collection of matches, and will include the "()"Will not requerRegex r = new Regex(@"$(.*)$");var e = r.Match(s);e.Groups will contain all matches, the second item will your result

regular-expression

Help needed in Regular Expression

6 Sep 2012

Volynsky Alex

Regular expression, or often known as regex, is a pattern that consist of rules used to match a certain set of strings. They are extremely powerful, and you’ll need them in most programming languages you come across, especially when there’s a need to scan and match context for further...

regular-expression

Parsing a Key-Value pair with a Regular Expression

6 Sep 2014

Marco Bertschi

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

Dev

regular-expression

Find exact match in c#

5 Jan 2015

DamithSL

sample code:var splitwords =new string[] {"egg","eggs", "have a receipt"}; string input ="I have a receipt with eggs but others with just one egg";foreach (string word in splitwords){ var regex = new Regex(@"(?

WinForms

regular-expression

Count of string returns 350 when entering special "a"

15 Mar 2016

Jochen Arndt

It is returning a length of 350 because the string contains 350 characters.To verify this, select the text and paste it into an Unicode editor (e.g. with Notepad++ choose File - New, Encoding - UCS-2 Little Endian, and paste the text). Within Notepad++, it will look like (shortened, there...

security

string

regular-expression

StringBox Control with Keystroke Validation

22 Jul 2020

siliconvideo

This StringBox control implements keystroke validation using regular expressions and a touch of glue logic

C# regex question.

14 Nov 2010

OriginalGriff

You either have an extra backslash: "[(.*?;)([(if)(while)(for)]\s*?$.*?${({.*?})*?})]"becomes"[(.*?;)([(if)(while)(for)]\s*?(.*?\){({.*?})*?})]"or one too few:"[(.*?;)([(if)(while)(for)]\s*?$.*?${({.*?}\)*?})]"

regular-expression

String/Substring find and replace

11 Jan 2011

#realJSOP

It's certainly the fastest way to type it.If you want to try to find faster ways, be a programmer and try different ways to approach the problem.Performance for such a task would greatly depend on the length of the string involved.

string

regular-expression

Method for textbox validation

30 Mar 2011

OriginalGriff

Unfortunately, AFAIK there is no way top make a regex which replaces "one of these" with "one of those".You can clean it up a bit, by using a MatchEvaluator to remove the need for a String builder. Make the regex just a list of known invalid characters and: result =...

regular-expression

comma separated values

26 May 2011

Kim Togo

Try this Regex: ,(?!(?

regular-expression

What is the meaning of this code

20 Nov 2011

Michel [mjbohn]

This is a so called 'regular expression' (RegEx).Just have a look at this :http://en.wikipedia.org/wiki/Regular_expression[^]Your RegEx will match when:0 or more whitespaces (\s*)are followed byexactly two digits (\d{2})followed by ':'followed by 0 or more whitespaces...

regular-expression

Regular expression to extract pattern from a string

22 Feb 2012

Peter_in_2780

The first thing to do is to write down exactly what you want to match. From your examples, it looks to me like this is a good start:a non-letterfaceoptional apostropheoptional sa non-letterTranslated into a regex, this turns into[^a-zA-Z]face\'?s?[^a-zA-Z]You then need to...

Java

regular-expression

Stuck with string replacement

11 Apr 2012

Mehdi Gholam

Use :(?\(\s*\?.*)+Which will give you the (...) portion and then just count the number of ? chars and replace with @paramN where N is an iterator.

string

regular-expression

CollectionRegex -- Regular Expressions for Collections

16 Apr 2012

Lutosław

Find patterns in a sequence of objects using a familiar language.

REG Expression quesiton

20 Jun 2012

Tim Corey

Note: These suggestions aren't Regex specifically, which I know you asked for. I'll work on a RegEx for you as well, but these solutions seem simpler and lighter than full RegEx:Pass the file names into the GetExtension method like so:string extension =...

regular-expression

Regex for not containing some words

21 Jun 2012

AspDotNetDev

You want a negative lookahead or a negative lookbehind. Suppose you want to validate so that a phrase starts with "string" and ends with "bee", but does not contain "like". You could use this regular expression (which uses a negative lookahead):(?!.*like)^sting.*bee$The negative look ahead...

string

text

regular-expression

C# string matching with wildcards

12 Sep 2012

Clifford Nelson

Look at the following tip (do not consider it an article, although so classified): Converting Wildcards to Regexes[^]

C#3.0

WinForms

regular-expression

Find and replace a string using regular expressions

27 Sep 2012

Yvan Rodrigues

Replace ntext$\d+$ with TEXTReplace DEFAULT$\((\d+)$\) with DEFAULT '$1'

regular-expression

Need regEx for this.

25 Feb 2013

Joezer BH

Hello Choudhary, \w in regex means: any word character (letter, number, underscore)you may use . (dot) that means: any single characterGood luck, Edo

regular-expression

.Net Regex: Match but don't include part of the match

30 Oct 2013

strogg

Try this instead of enclosing your exp with [^\d]...regex...[^\d](?

regular-expression

I need a Regular expression for alphabet and space

19 Apr 2014

Peter Leow

Try this:^[a-zA-Z]+(\s[a-zA-Z]+)?$

regular-expression

Regular Expression (first character must be a-z)?

16 Jun 2014

Peter Leow

^[a-zA-Z][a-zA-Z\s\-]*$

ASP.NET

regular-expression

InfoIP a tool to find your WAN IP

8 Sep 2014

cogi83

A SW to send your WAN IP and other info via email

Parsing sentence using template

1 Nov 2014

George Jonsson

Basically you can replace the keyword @city with \s+(?[\S\s]+?)\s+Example:string template1 = @"^Tell me the forcast of\s+(?[\S\s]+?)\s+for\s+(?[\S\s]+)$";In C# you useMatch m = Regex.Match("Tell me the forcast of Las Vegas for tomorrow", template1);if...

regular-expression

Converting a specific regular expression pattern from java to c#

10 Nov 2014

PIEBALDconsult

I have been unable to determine what the meaning of \Q is in Java, but in Perl, it's:\Q quote (disable) pattern metacharacters until \E\E end either case modification or quoted section,This doesn't appear in the .net implementation and seems needless in your...

C#5.0

Java

regular-expression

Finding a string should have a particular letters?

12 Dec 2014

Unihedron

See this regex:/^(?=[^a]*a)(?=[^n]*n)(?=[^u]*u)/iRegex explanation:^ Asserts position at start of string.(?=[^a]*a) Asserts that "a" is present after all the non-"a"s.(?=[^n]*n) Asserts that "n" is present after all the non-"n"s.(?=[^u]*u Asserts that "u" is present after all...

regular-expression

Finding a string should have a particular letters?

12 Dec 2014

Maciej Los

The same you can achieve using Linq[^] query:string[] words = new string[]{"Anitha", "Nandu","anushka","jayasree"};var qry = from w in words where w.ToLower().Contains('a') && w.ToLower().Contains('n') && w.ToLower().Contains('u') select w;foreach(string word in...

regular-expression

What is the pattern match for a string which can allow Alpha numeric, underscore and dot

21 Jan 2015

Peter Leow

Try this:^[\d\._\w]+$also read: The 30 Minute Regex Tutorial[^]

regular-expression

How to Compare strings by Regex inside a LINQ Query?

12 Feb 2015

Richard Deeming

Two problems with your code:You've used Regex.Match instead of Regex.IsMatch;You've missed the @ prefix on the second "\b" string;I'd also be inclined to add a Regex.Escape around the word to find, in case it contains any special characters.var listTobeDeleted =...

LINQ

regular-expression

Regular expression for 9 digits and one character

10 Nov 2015

OriginalGriff

Try:$\d{9}[A-Za-z]^

regular-expression

Regular Expression Worst Situation

7 Dec 2015

Peter Leow

Try this:(?)\d\.\d\.\d.\d(?=\)The keys lie in:(?

regular-expression

How Can I Get The Matched String In Pattern In Vb.Net

22 Dec 2015

Richard Deeming

Your parameters are the wrong way round - the first parameter is the string to test, and the second parameter is the regular expression to use:Regex.IsMatch(myString, ".* My name is XYZ")To retrieve the details of the match, use the Match method[^], which returns a Match object[^]....

.NET

patterns

regular-expression

Vb.net regex function values between commas (",")

4 Mar 2016

Richard Deeming

Your pattern currently consumes the leading and trailing commas, so every other value is skipped.You need to use zero-width positive lookahead/lookbehind assertions instead:Regular Expression Language - Quick Reference[^]Also, it would be better to use [^\,]* rather than .*?, since you...

regular-expression

Regex link matching on raw text

2 May 2016

Patrice T

See solution 1 for a working solution.This site can help to see if a regex is doing what you expect.Debuggex: Online visual regex tester. JavaScript, Python, and PCRE.[^]I guess you will have to read regex documentation to understand advanced usages.perlre - perldoc.perl.org[^]By...

regular-expression

Regex - split quoted string as one words

1 Jun 2016

OriginalGriff

String.Split isn't a Regex - it's just a basic string method that can't do anything too complex.Try:("[^"]*")|([^\s]+)as a regex - it should give you what you want as separate Group values.

C#3.5

string

regular-expression

What matches this regex expression?

27 Sep 2016

OriginalGriff

It's not a valid regex for a telephone number: what it matches is literally a single numeric digit followed by the text "{5-15}" and nothing else.What they probably meant to say was:^[0-9]{5,15}$Which matches "any string of numeric digits between 5 and 15 characters long,...

regular-expression

Credit card match with number + expire and CVV

25 Sep 2019

MadMyche

Using RegEx for Credit Cards is at best rudimentary; you are better off validating what you are actually working with Credit Card numbers themselves are generally at least 16 digits long; the primary exception being American Express which uses 15 digits. CVV numbers are 3 digits long for most;...

regular-expression

Help needed with regex for a string

22 Sep 2020

Maciej Los

[EDIT] If you would like optionally to get first occurance of 99,00... For lines: My super data plan 10gb mobile 99,00 1 jul - 31 jul 2020 99,00 My super data plan 10gb mobile 1 jul - 31 jul 2020 99,00 Try this: ...

regular-expression

Chronological Expressions (ChronEx) for Event Logs

11 Jun 2018

Member 10481957

Chronological Expressions is a RegEx inspired Pattern Matching Library and Specification for query event logs

.NET

logging

regular-expression

restrict values in a textbox

9 Sep 2010

Om Prakash Pant

Please check the following modified code:Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress Dim allowedChars As String = "0123456789" If e.KeyChar ControlChars.Back Then If...

Javascript

regular-expression

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

5 Jan 2011

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...

Regular Expression to Extract Inner Text from Anchor Tags

8 Feb 2011

Bryian Tan

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

HTML

regular-expression

RegEx to validate string has 0 or 1 of each letter TRBL, no dups, any order

26 Feb 2011

DaveAuld

In case you have never heard of it, this is an excellent site. Contains cheat sheet and testers. As well as a list of predefined expressions.regexlib[^]That is a suggestion, i will see if i can come up with a solution!Edit: See you posted your question on that site also :doh: I will...

regular-expression

RegEx to validate string has 0 or 1 of each letter TRBL, no dups, any order

26 Feb 2011

OriginalGriff

I wouldn't use a regex: you could but it would be quite complex and difficult to maintain.Instead, I would sort the characters in my input string, and then check it.If two adjacent characters are the same, fail.If any character is not in the set 'B', 'L', 'R', 'T', failOtherwise, pass.

regular-expression

Matching duplicate xml tags using regex

29 Apr 2011

Manfred Rudolf Bihy

Save yourself the pain and use XPath expressions[^] to dissect your XML.Regular expression are really no good for parsing nested structures.Best Regards,-MRB

regular-expression

need help with regular expression

6 May 2011

OriginalGriff

Try:public static Regex regex = new Regex("para.*tabs.*", RegexOptions.IgnoreCase | RegexOptions.CultureInvariant | RegexOptions.Compiled);Get a copy of Expresso[^] - it's free,...

regular-expression

RegularExpresion (fast question)

30 May 2011

yesotaso

//Get related text blockstring subContent = Regex.Match(content,@"(?

regular-expression

C# RegEx: RegularExpressionValidator

6 Jun 2011

Prerak Patel

1. You can use \d{10} instead of @"\d\d\d\d\d\d\d\d\d\d"2. What is this : expvalidator.IsValid.IsValid?Edit ----Because the default value of this property is true, it will return true if you query this property before validation is performed. For example, this might occur if you attempt...

ASP.NET

regular-expression

Regular expression for checking repeating sequences, e.g., 1234 or abcd

14 Jun 2011

OriginalGriff

And I think you will continue looking: that is not something I would want to do with a regex, particularly since you do not know the length of the sequence to be checked for.Instead - since I assume this is for checking password strength - why not use existing code: Password Advisor[^] has...

expression

regular-expression

Weird c# Regex behaviour

1 Jul 2011

Nyarlatotep

2 alternatives

Hello, I cannot find a valid regular expression pattern for my needs.I have a sample string like this:I have four child of seven years each, [seven] years ago I had no child, because I was fourteennow, I want match and then substitute the words "four" and "[seven]".So I have...

C#4.0

regular-expression

What is the RegEx for this?

7 Jul 2011

OriginalGriff

Try:public static Regex regex = new Regex( @"^$_\d*$\s*", RegexOptions.IgnoreCase | RegexOptions.Multiline | RegexOptions.CultureInvariant | RegexOptions.IgnorePatternWhitespace | RegexOptions.Compiled );string result =...

regular-expression

Regex for getting only words from string

18 Aug 2011

OriginalGriff

That actually quite difficult, and probably not suited for a regex at all. The problem is that you want to accept the "Peter" from "Peter's" but discard "5th". What you really want to do is probably use a dictionary (a proper one, rather than an .NET Dictionary class) and check for actual words....

.NET

regular-expression

A regex help to filter text in brackets

25 Sep 2011

André Kraak

You can use the Regex.Split Method[^].Use these links to find out how regular expressions work:.NET Framework Regular Expressions[^]Regular Expression Language Elements[^]

regular-expression

RegEx pattern needed

17 Oct 2011

NewPast

Dim pattern="http.*\.flv"Dim pattern2="^http.*\.flv$"'^ means at the 1st of the line; $ means at the end of the line

patterns

regular-expression

Don't count spaces when counting words.

25 Oct 2011

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 /// ...

regular-expression

regular expression for strings which start with 1 and has a length of 25 characters

6 Nov 2011

Sergey Alexandrovich Kryukov

1.{24}—SA

regular-expression

regular expression for strings which start with 1 and has a length of 25 characters

6 Nov 2011

RaisKazi

Have a look at below Articles.Learn Regular Expressions (RegEx) with EaseThe 30 Minute Regex Tutorial

regular-expression

What is the meaning of this code

20 Nov 2011

RaisKazi

Have a look at below CodeProject Articles on "Regular Expressions".The 30 Minute Regex TutorialLearn Regular Expressions (RegEx) with Ease

regular-expression

Searching using Regular expressions as in SQL Like

13 Jan 2012

OriginalGriff

In this case, try:ClosedAccountFile_(\d+)_(\d+)_(\d+)_(\d+).txtThis matches your example, and separates each of the numeric values out into it's own group within the match.You have top realize that Regexes are much, much more complex than SQL LIKE statements - the simplest form of "%" in a...

C#4.0

regular-expression

a regular expression must have two decimal place

2 Feb 2012

cutexxbaby

2 alternatives

how to change this regular expession to must have two decimal place((0)+(\.[1-9](\d)?))|((0)+(\.(\d)[1-9]+))|(([1-9]+(0)?)+(\.\d+)?)|(([1-9]+(0)?)+(\.\d+)?) cause i try 0.0123 it work but if i try 1.123 it don't wok, if i try 0.1 is don't worki have try this...

regular-expression

please help me with the Regular expression

2 Feb 2012

OriginalGriff

Try:Regex regex = new Regex("[a-zA-Z]");string result = regex.Replace(InputText,"#");Get a copy of Expresso [^] - it's free, and it examines and generates Regular expressions.

regular-expression

regex for removing select and option html tag

6 Feb 2012

Andreas Gieriet

If you want to remove the whole select element with it's content, then you can do it with regex only if some constraints are met: no nested element of the same name (select in this case).Try this:string pattern = @"";CheersAndi

HTML

regular-expression

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

15 Feb 2012

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?

The Regular Expression Skidmarklet

12 May 2012

funboysclub

From Pins to Poops, your bookmark bar can do more. Read about the Skidmarklet... a JavaScript Bookmarklet and lessons in RegEx.

Javascript

regular-expression

Regular expression validation for 1-10 but not allowed zero

13 Jun 2012

OriginalGriff

Try:^[1-9][0-9]{0,5}$

regular-expression

Leading zero not allowed length upto 6 digit only

18 Jun 2012

Prasad_Kulkarni

Try this:^(?=[0-9]{3,6}$)0*[1-9][0-9]{2,5}

regular-expression

only 6 digit allowed & leading zero not allowed

18 Jun 2012

OriginalGriff

This is a bit rough, because you don't describe it well:[1-9][0-9,]{0,5}Get a copy of Expresso [^] - it's free, and it examines and generates Regular expressions.

ASP.NET

regular-expression

RegEx + maximum length issue

9 Jul 2012

Manas Bhardwaj

I guess it should be like this:bool result1 = Regex.IsMatch("ABCDEF", @"^[A-Z]{2}$");bool result2 = Regex.IsMatch("ABCDEF", @"^[A-Z]{2,2}$");bool result3 = Regex.IsMatch("AB", @"^[A-Z]{,2}$");bool result4 = Regex.IsMatch("AB", @"^[A-Z]{2,2}$");If a caret (^) is at the beginning...

C#4.0

regular-expression

Splitting String on Java

8 Sep 2012

ridoy

http://www.java2s.com/Code/Java/Regular-Expressions/JavaRegularExpressionSplittext.htm[^]http://www.regular-expressions.info/java.html[^]http://www.javamex.com/tutorials/regular_expressions/splitting_tokenisation.shtml[^]http://forums.codeguru.com/showthread.php?292394-TIP-A-little-tutorial...

Regular expression for email validation

19 Sep 2012

Aarti Meswania

if it is Windows Applicationset property of Textbox CharacterCasing = Lowerit will automatically convert uppercase letters to lowercase.string pattern="^([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,3})$";and verify it when textbox's Leave event...

regular-expression

Validating a user Id using regular expressions

30 Sep 2012

Yvan Rodrigues

^([a-zA-Z0-9](?(?!__|--)[a-zA-...

regular-expression

Replacing ' with null

16 Nov 2012

MT_

I tried this in C# and it worked fine.Regex regex = new Regex("\'");string[] lines = File.ReadAllLines("d:\\milind.txt");foreach (string line in lines){ string str = regex.Replace(line, ""); Console.WriteLine(str);}Hope that helps. If it does, mark it as...

regular-expression

Enforcing strong password with regular expressions

4 Feb 2013

Manfred Rudolf Bihy

What you are searching for is not a case for using Regular Expressions. RE's allow you to quantify how many characters of a set may occur in a row, but not how many in total. Writing a regular expression for what you are trying to do is not possible.You're better of doing this with a...

regular-expression

Enforcing strong password with regular expressions

4 Feb 2013

Zoltán Zörgő

Manfred R. Bihy's answer is mainly correct. But regexp is capable of counting total character counts using lookaheads (please look at this article: http://www.zorched.net/2009/05/08/password-strength-validation-with-regular-expressions/[^]). But strong password validation usually goes beyond...

regular-expression

Need help with regEx

19 Feb 2013

Joezer BH

Hello Paw,Here's a pattern to find the LON and then insert it into a group called "lon":string patternToFindLON = @"lon(\s|:)*(?[0-9]*(.[0-9]*))";And the same idea to find the LATCheers, Edo

regular-expression

C# Forbidden Signs in Datanamespaces Regex pattern

20 Feb 2013

Joezer BH

Try this:string regexSearch = new string(Path.GetInvalidFileNameChars()) + new string(Path.GetInvalidPathChars());Regex r = new Regex(string.Format("[{0}]", Regex.Escape(regexSearch)));Cheers, Edo

patterns

regular-expression

Regex a html

19 Mar 2013

Sergey Alexandrovich Kryukov

An attempt of applying Regular Expressions to extract data from HTML is a very usual in the beginners, and, in most cases, is a methodological mistake. First of all, it's most usual case when HTML is a well-formed XML. In this case, .NET XML parsers should be used, and they are always available....

regular-expression

how to extract substring in c# using regex

11 Apr 2013

OriginalGriff

You haven't used groups in your Regex! So all you will get is the whole string matched.I'm just guessing that you want to break out the title and the human readable segment separately?Try this:\w+)">(?.+?)This breaks out two groups:...

regular-expression

Regular expression for splitting a comma-delimited string

10 May 2013

André Kraak

I found a similar question on Stack Overflow[^] and used its answer on your problem.The idea is to split only on comma's that have an even number of or no single quotes after it.Using this expression I got the result without the additional blank line you are looking for....

regular-expression

Needing for regular expression help

23 May 2013

OriginalGriff

This is not a "good" regex problem: what you really want to do is use a regex to find if a string contains any "special" characters, then count the number of non-special characters. But your description basically comes down to: you can use any characters you like, but you must have at least one...

regular-expression

how to extract isbn 10/13 number from text using regular expression

3 Jun 2013

Maciej Los

Have a look here: http://regexlib.com/Search.aspx?k=ISBN&AspxAutoDetectCookieSupport=1[^]. There you'll find a solution ;)In my opinion this regex:ISBN(-1(?:(0)|3))?:?\x20+(?(1)(?(2)(?:(?=.{13}$)\d{1,5}([ -])\d{1,7}\3\d{1,6}\3(?:\d|x)$)|(?:(?=.{17}$)97(?:8|9)([...

.NET

regular-expression

RegEx : How to match string that is not HTML tag or Special Char...?

25 Jul 2013

good.shankar

3 alternatives

Hai,I have some HTML Text. When i display that i want to highlight some keywords. I dont want to match if that is a part of html tag or any special characters like for eg :My HTML Text : Hello Welcome to my Spa No. 160my keywords : spa 160for highlighting i use...

ASP.NET

regular-expression

What does this character set mean [\+-x\*]

12 Sep 2013

Maciej Los

Have a look here: Regular Expression Language - Quick Reference[^]Regular Expression Basic Syntax Reference[^]

regular-expression

What does this character set mean [\+-x\*]

12 Sep 2013

CHill60

The hyphen is the key part, the regex is saying match any character in the range "+" to "x" or *For example ")" and "z" would not matchNot sure why it isn't just [\*-x] to be honest.

regular-expression

using std::tr1::regex_iterator to search and replace occurences in a string.

18 Sep 2013

Maximilien

1 alternative

Is it possible to use std::tr1::regex_iterator to search and replace in a string ?I know I can use std::tr1::regex_replace to replace all occurrences (or only one), but I need to replace each "pattern" that I find with something different, so I need to iterate my input string and replace on...

RegEx - Complex Regex Function, Ignore Spaces, negate only certain letters

11 Oct 2013

Andreas Gieriet

I would split the whole thing into scanning and parsing.According to your spec, the overall pattern looks as follows:begin, 1-to-2-digits, 1-char, 2-chars, 2-evenly-split-digit-groups-of-up-to-4-digits-each, endWhere between all tokens, there may be zero or more spaces.Lets define...

regular-expression

Need help with Regex Patterns

18 Oct 2013

BillW33

Although you have solved your problem I am posting this to help those wanting to better use RegEx. A very helpful site is regexlib[^]; they have a large library of Regular Expressions. They also have a RegEx tester[^]. Also a very useful RegEx tool is available here.

regular-expression

Need help in this validation code

24 Oct 2013

codestar007

1 alternative

Hi allI wrote this expression for validating % in textbox^100(\.0{0,2})? *%?$|^\d{1,2}(\.\d{1,2})? *%?$Its working fine with input like 20.88%but when i give 20.88 i.e. without %, that also it's taking..this i don't wantPlease tell me what i am doing wrong..??

regular-expression

Find version number with Regex in .NET

2 Nov 2013

OriginalGriff

If you aren't sure, then the best thing to do is to get a copy of Expresso: http://www.ultrapico.com/expresso.htm[^]It's free, and it explains, helps you create and tests Regexes - I use it all the time and really wish I'd written it. (And I wish it came in an Android version, too)."\*"in...

.NET

regular-expression

[Not a questiob] Need Regex pattern for finding the mentioned words below in c#

19 Nov 2013

♥…ЯҠ…♥

Hi Bala,Here is the regex for dollar symbol^([0-9]{1,3}\$?)$ (dollar optional here)If dollar mandatory at last with single appearance then use this ^([0-9]{1,3}\$)$ or ^([0-9]{1,3}\${1})$ (dollar mandatory here)will allow 100$, 111$, 001$, 123$.For indian currency you can...

regular-expression

Regex select between two “strings”

21 Jan 2014

Ron Beyer

Here is a way to do it without RegEx: class Program { static void Main(string[] args) { string fileName = "CheckFileList.txt"; Dictionary> sections = GenerateList(fileName); foreach (string sectionName...

regular-expression

Regular expression needed to read in between the parenthesis

18 Feb 2014

OriginalGriff

To be honest, a regex is a poor way to do this: regular expressions are very good at pattern matching, but they are very poor are syntactic analysis, which is what this task requires.It is possible to match brackets and so forth - though it is quite complex - but it can't easily spot things...

regular-expression

date of birth regular expression validation for dd/mm/yyyy format issue

20 Feb 2014

Sergey Alexandrovich Kryukov

Please see my comment to the question.You just need to learn System.DateTime and methods of parsing of string into date data. Please see all the methods named Parse, ParseExact, TryParse and TryParseExact (and avoid using Convert, in most cases; after all, this is parsing, not...

Regex in .Net: Which characters are recognized by \s

15 Apr 2014

Sampath Lokuge

\s matches whitespace (short for [\f\n\r\t\v\u00A0\u2028\u2029]).Please take a look at this : Regular Expressions patterns

.NET

regular-expression

How to write a regular expression to match a string with colon at the end

21 Apr 2014

OriginalGriff

Either[0-9a-zA-Z]+:for "one or more", or[0-9a-zA-Z]*:for "zero or more"But you may find this better:\w+:for "one or more", or\w*:for "zero or more""\w" is the equivalent of "[0-9a-zA-Z_]"

ASP.NET

regular-expression

Regex for alphanumeric

6 May 2014

CHill60

Try this ^(?=.*[a-zA-Z]+.*)[0-9a-zA-Z]{6,15}$Which I adapted after typing "Password" into the search engine at Regxlib.com[^]

Regex for Multiple Check Box

7 May 2014

Peter Leow

It has got nothing to do with regex, just use javascript to validate before submissioncheck-box-validation-for-atleast-one-check-box-should-cheked-in-asp-net[^]

creating regular expression pattern in c#

13 Jun 2014

phil.o

Maybe:const string EIDPattern = @"^(?[A-Za-z0-9]{4})(?:[/\s])(?[A-Za-z0-9]{5})(?:[/\s])(?[A-Za-z0-9]{2})$"TheInput string can have space or other symbols also.is not directly translatable to a valid regular expression statement, though.You should...

regular-expression

problem with match collection in using zero element/ignoring last char

9 Jul 2014

George Jonsson

Hi,Change your expression to this:string pattern = "(?=.*\bgoods\b|\bitems\b|\bthings?\b)(?=.*\bbought\b)(?=.*\bid\b)(?=.*\btest\b).*";Putting a ? after the 's' in 'things?' will catch both thing and things.You need to have word boundaries around each word in the optional...

C#5.0

.NET

regular-expression

regular expression for validate specific digit after decimal point

29 Oct 2014

Peter Leow

Try this, decimal number with only a "5" after decimal point.^\d*.5$

Javascript

jQuery

regular-expression

Converting regular expression from java to .Net

7 Nov 2014

Manas Bhardwaj

Regular Expressions[^] do not change for a different language. The current regular expression in it's form should work in C# as well.

Java

.NET

regular-expression

How Can I Get String(Starting With T.) From List Of String.

12 Nov 2014

Maciej Los

Something like that should do the work: List exp = new List(); exp.Add("#:t.Brand"); exp.Add("#:iF(12 > 10,t.price,t.description)"); exp.Add("#:t.Brand + 'and ' + t.SubBrand"); System.Text.RegularExpressions.Regex searchTerm = new...

.NET

regular-expression

replacing all regEx matches in large string

21 Nov 2014

Matt T Heffron

Why not just have the Regex do the replacement?private string ReplaceProductDescription(string description){ string pattern = @"/en/products/(?\d{4})/(?\d{4})\.aspx"; Regex regEx = new Regex(pattern); return regEx.Replace(description, "newString pn1 here:${pn1} pn2...

regular-expression

Extract Month and Date from File Name, using regx

7 Dec 2014

OriginalGriff

Try:(?\w\w\w)(?:_...

Extract Month and Date from File Name, using regx

8 Dec 2014

George Jonsson

This is one way to do it.string input = "ABC_V3_Weekly_Abcdef_from_NOV_05_to_NOV_12";Regex regex = new Regex(@"from_(?[A-Z]{3})_(?[0-9]{2})_to_(?[A-Z]{3})_(?[0-9]{2})", RegexOptions.IgnoreCase | RegexOptions.CultureInvariant | RegexOptions.Multiline...

Finding a string should have a particular letters?

12 Dec 2014

Andreas Gieriet

How about this - not RegEx, but produces also the desired result:var names = new string[]{ "Anitha", "Nandu", "anushka", "jayasree"};string[] anu = names.Where(n=>n.IndexOfAny("aA")>=0) .Where(n=>n.IndexOfAny("nN")>=0) ...

regular-expression

Removing Multiple Patterns using Regular Expressions

10 Mar 2015

Praneet Nadkar

Hi,You can try this:var regex = new Regex( "(\\)|(\\)", RegexOptions.Singleline | RegexOptions.IgnoreCase);string ouput = regex.Replace(yourString, "");This worked for me. Hope this helps !! :) :)

Regex expression fucntion

28 May 2015

Maciej Los

Try this: (\+\d+[a-zA-Z])|(.\+\d+)|(\d+\+)

regular-expression

Evaluating an expression using DataTable.Compute() method throws error

20 Sep 2015

PIEBALDconsult

Right, well obviously that method can't handle C/C++/C# syntax; it's actually pretty limited in what it can do.Fortunately, .net allows you to compile code at run-time. There are several articles here on CP, including mine: Compiling Source Code from a String[^]

How can I count the quantity of operands and operators (both total and unique) of a JavaScript program?

28 Oct 2015

CPallini

You have to somehow parse the JavaScript source code, in order to extract such a info.You may have a look at existing parsers (Google is your friend[^]).

problem in regular expression to validate atomic

14 Nov 2015

George Jonsson

You have a syntax error in your expression. You are using ( instead of [.So change the expression from^(a-z)+$+(a-z)+\,+(a-z)+$ $to^[a-z]+$+[a-z]+\,+[a-z]+$;$I also replaced the white space with a ;

C++

regular-expression

how to validate drivers license number

16 Dec 2015

OriginalGriff

The year is the problem - the rest of it is trivial.I would do the year validation as a separate operation: extract it as part of the regex, then check it as a valid year in code rather than try to do it as a regular expression operation.The reasons are twofold1) Year validity changes...

regular-expression

How to validate parentheses position in C#?

20 May 2016

George Jonsson

Regular expressions are not the best tool for this, because you will have nested parts of your input text.In this case it with be more robust to use a parser, but that has a bit of a learning threshold. ANTLR4 is a free parser originally for Java, but it has a version for C# as well. See...

How does java regex quantifier “? ” work?

28 Sep 2016

OriginalGriff

The problem is that "?" means just that: "0 or 1 repetition of the preceding item"Which means it's optional.Take the "integer number" regex:^[+-]?\d+$What that says is "the whole string consists of at least one digit, which may be preceded by a single plus or minus"So it...

Java

regular-expression

Unable to use regex.

13 Jan 2017

OriginalGriff

Well, the regex should work. But ... your code doesn't care what happens if it does or doesn't work in that all you do is put up a message box if it fails and continue.Probably, you need to add an Else clause to the click handler to do something specific when the pattern does match. But we...

regular-expression

How do I implement a regular expression at the end of a word in a string

8 Nov 2017

Karthik_Mahalingam

Not using Regex var input = 'fgsdfg $sdfsdgf$ sdfas $dgfdg$'; var words = input.split(' '); var tempOutput = []; for (var i = 0; i

Javascript

regular-expression

Better way to use regex for match and replace

1 Mar 2018

Medtronic WPF Developer

1 alternative

Hello I believe that there is a better way to use RegEx in C# than I have done below: public override object ProvideValue(IServiceProvider serviceProvider) { Regex r = new Regex("{.+}"); var matches = r.Matches(String); var replacer = new...

regular-expression

Better way to use regex for match and replace

1 Mar 2018

Richard Deeming

Something like this should work: private static readonly Regex Pattern = new Regex("{(.+?)}", RegexOptions.Compiled); public override object ProvideValue(IServiceProvider serviceProvider) { return Pattern.Replace(String, match => { string newMatch = match.Groups[1].Value; ...

regular-expression

Using C# regex expressions, is there a way to get text that matched the wild card

9 May 2018

RickZeeland

Here is a nice extension class that will make regex searches a lot simpler: I don't like Regex...[^] You can search using a wildcard like * and the result will contain the found string. I modified it a little so * also includes spaces in the result and users don't need to use %: static...

regular-expression

Using C# regex expressions, is there a way to get text that matched the wild card

9 May 2018

OriginalGriff

If you mean HearingDocExtract, DocumentCopy, and DocumentID Then this will do it: (['])(?:(?=(\\?))\2.)*?\1 using System.Text.RegularExpressions; /// /// Regular expression built for C# on: Wed, May 9, 2018, 05:43:42 PM /// Using Expresso Version: 3.0.4750, http://www.ultrapico.com...

regular-expression

How to write regular expression for 101/AZ19/500000009/08 problematically in C#?

14 Mar 2019

Thomas Daniels

A digit is \d. A repetition can be implemented using {N} (meaning that a char or group must be repeated N times). With that, your regex becomes: ^\d{3}/[A-Z]{2}\d{2}/\d{9}/\d{2}$ Test it here: Online regex tester and debugger: PHP, PCRE, Python, Golang and JavaScript[^] string regex =...

ASP.NET

regular-expression

How to exit a regular expression...

23 Mar 2020

Richard Deeming

I'm guessing somewhat here, but I suspect you're using the Validating[^] event to validate your textbox, and that's preventing you from clicking on your "exit" button unless you've entered a valid value. If that's the case, you need to set the...

regular-expression

Help needed with regex for a string

21 Sep 2020

Patrice T

Quote: Can someone help? The principle of regex is to match variable strings, to explain what you want, you need to give examples inputs and matched strings to let us know what you want, a few input that will be rejected may help too....

regular-expression

SQL Object Dependencies with Simple RegEx and Some Algo Magic

10 Jan 2018

ASkaeff

A simple yet powerful tool to analyze SQL object dependencies in quite a fast and reliable manner.

SQL

database

regular-expression

C# regular expression group names

26 Jul 2010

xJorDyx

1 alternative

This is one of my regular expressions:(?[-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?),(?[-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?)The input would be 2 floats separated by a comma2.34,-23It creates 2 main groups "RollP" and "RollI" and i want to be able to take the...

regular-expression

string manipulation - 2

17 Nov 2010

Fredrik Bornander

Try this;using System;using System.Text;using System.Text.RegularExpressions;namespace SomeNameSpace{ class Program { private static string input = "VMMAnalogs_Acquire.c 1.26 2001_105/02 2001_105/02\n" + ...

CSV

regular-expression

Regular Expressions - Check for char between other chars

4 Dec 2010

User970

2 alternatives

I have a text file that I want to split with RegEx, but the problem is that its syntax is something like this:["string", "string", [("string", int),("string", int)], int, int, string(int, "string")],I want to split it using the comma (,) as a delimiter, but as you can see, there are a lot of...

regular-expression

How to get formatted output..???

4 Jan 2011

Hiren solanki

Regular expression isn't there to help you in such a situation.Whatever your HTML tag is will give you finally out put in a browser in a pattern of what you wanted actually, What you want to achieve using Regex.Dot is a HTML display for unordered li tags.and number is a HTML display...

regular-expression

idnumber entry that automatically adds hyphen on textbox

7 Jan 2011

Hiren solanki

Other then Masked textbox using Ajax, You will also find this simple TRICK[^] with simple JS useful.

Javascript

ASP.NET

regular-expression

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

18 Jan 2011

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)....

How to replace particular many spaces by single space...?

16 Jan 2011

Estys

The regular expression to serch for would be ">\s{2,}

regular-expression

Removing unclosed opening tags from xhtml document

21 Jan 2011

Sandeep Mewara

Well, this is a repost[^] of your earlier question with changed content a little. Please avoid posting the same stuff multiple times. Follow at one place. Asking for code is not going to help. Try and then post the issue you face.

regular-expression

How to Remove opening tags if ending tags are not there ?

21 Jan 2011

Hiren solanki

My complete work for you in a free time.String HTMLStr = "Hi Hello How r u. "; Regex regex = new Regex("\\]*\\>"); MatchCollection...

regular-expression

Regex to find a string of characters + more

7 Feb 2011

OriginalGriff

You don't need a Regex to do that: you can just use the string.Replace method:string inp = "hello there\n/* Call SUT */goodbye";inp = inp.Replace("/* Call SUT */", "/* Lower LOG level to improve performance and decrease output file size. */\n" + ...

regular-expression

RegEx to validate string has 0 or 1 of each letter TRBL, no dups, any order

26 Feb 2011

DaveAuld

Well,Based on this; http://regexlib.com/REDetails.aspx?regexp_id=564[^]I substiuted ABCD for TBRL and got this;(?i:([TBRL])(?!\1)([TBRL])(?!\1|\2)([TBRL])(?!\1|\2|\3)([TBRL])) Didn't work length had to be 4Try...

regular-expression

RegEx to validate string has 0 or 1 of each letter TRBL, no dups, any order

26 Feb 2011

Henry Minute

The first part of your question is not difficult, something like "[RBLT]{4}" would do it.The 'no duplicates' is difficult and in my opinion not suitable for a regular expression. This[^] article agrees.Although there are some regex wizards on CP that might give different advice.

regular-expression

RegEx to validate string has 0 or 1 of each letter TRBL, no dups, any order

26 Feb 2011

Sergey Alexandrovich Kryukov

It should be three steps: first, compare string with string.Empty (or first with null, or use string.IsNullOrEmpty). As a second step, use [RBLT]{4}, as Henry correctly put it. Third: with Regex, find all matches and then compare them in a loop to find duplicates and select only one match in...

regular-expression

C# regular expressions

10 Apr 2011

Ashishmau

u can do like this alsostring s = "domain\\username"; string a = s.Substring(s.IndexOf("\\")+1);Hope it helps

regular-expression

need regular expressions for multiple date format

10 Apr 2011

JF2015

Try these solutions:http://stackoverflow.com/questions/4377921/how-do-i-check-for-multiple-date-formats-in-regex[^]

PHP

regular-expression

Matching duplicate xml tags using regex

29 Apr 2011

Kim Togo

You can use LINQ to XML. It is very nice to work with.LINQ to XML Overview[^]

regular-expression

Matching duplicate xml tags using regex

29 Apr 2011

Sergey Alexandrovich Kryukov

In addition to what Kim and Manfred proposed, I'll add:You need to create an XML schema and validate XML against the schema, please read this: http://msdn.microsoft.com/en-us/library/system.xml.schema.xmlschemavalidator.aspx[^].General conclusion: application of Regex to XML is totally...

regular-expression

how to using the Regular to get the key words?

2 May 2011

Kim Togo

Try this regexp^at\s+(?.+?),.+?$.+?longitude\s+(?.+?),latitude\s+(?.+?)$\s+in\s+(?.+?),the depth.+?\s+(?\d+)/// A description of the regular expression:/// /// ^at\s+/// Beginning of line or string/// at/// ...

regular-expression

Searching for numbers in a given string.

19 May 2011

Kim Togo

Try this bade boy of a regex string: \b(?=[-/\\\\A-Za-z]*[0-9])(?=[-/\\\\0-9]*[A-Za-z])[A-Za-z0-9]+(?:[-/\\\\][A-Za-z0-9]+)*\bIt will find only strings that contains numbers.string like this "Dam It12 is not45 that g00d".Will give...

regular-expression

Searching for numbers in a given string.

19 May 2011

Deepthi Aravind

string abc = "deepthi12 " char[] SpecialChars = "0123456789";.ToCharArray(); int indexOf = abc.IndexOfAny(SpecialChars); if (indexOf != -1) { //there should a number in the string } else ...

regular-expression

Regular expression validation for special characters

4 Aug 2011

Roliking

2 alternatives

Hello All, I want to validate my textbox and email fields not to contain >> ( ) { } [ ] ? & * ~ ` ! # $ % ^ = + | \ : ' " , ; these special characters and can contain - _ @ / . these sepcial characters.How can i do it?Thanks in advance,Regards.

regular-expression

Regular expression validation for special characters

4 Aug 2011

OriginalGriff

The simple regex is easy: @"[^\...]" where the elipsis is the list of individual characters you want to prohibit.However, I would suggest that a better email address validation would be a good idea, especially since '@' is not a legal character in an email address (it is the separator...

regular-expression

Regular expression validation for special characters

4 Aug 2011

thatraja

I recommend the following freeware to regular expression thingsExpresso 3.0 - The premier regular expression development tool[^]

regular-expression

regular exprssion for following

4 Aug 2011

Christian Graus

I suggest you download the program expresso. It helps you build regular expressions and test them. Also, 9 out of 10 real programmers know how to do something like this[^].

.NET

regular-expression

Regex for getting only words from string

18 Aug 2011

BoxyBrown

3 alternatives

Hi all.Is it possible to split input text into list of words. Words should contain only symbols.for ex. "This is Peter's 5th program." I want to get words: "This", "is", "Peter", "program".Can I do it using only regular expressions? Or it is better to use myString.Split(' '), analyse...

.NET

regular-expression

Regex for getting only words from string

18 Aug 2011

Sergey Alexandrovich Kryukov

I would start with Split. The problem is not really up to Regex, which is also would be hard to support.—SA

.NET

regular-expression

how to validate alphanumeric in javascript

22 Aug 2011

OriginalGriff

Google! A very simple search using "validate alphanumeric in javascript" copied from your question subject gave 1.3 million hits, most of then explaining exactly how to do it.Please, try to do at least basic research your self in future...

Javascript

regular-expression

how to validate alphanumeric in javascript

22 Aug 2011

CPallini

It is time to learn both Javascript and regular expressions (and, in the spare time, have a look at the Q&A FAQ).

Javascript

regular-expression

regular expression for indian vehicle number

8 Sep 2011

sravani.v

^[A-Z]{2}([ \-])[0-9]{2}[ ,][A-Z0-9]{1,2}[A-Z]\1[0-9]{4}$

expression

regular-expression

c sharp regex replace first or last character of any word

9 Sep 2011

#realJSOP

Why use regex? // I would personally make this an extension methodpublic static string ReplaceOccurrence(this string str, string target, string replacement, int count){ int pos = -1; int counted = 0; string result = ""; do { pos = (pos >= 0) ?...

regular-expression

affected by the order of letters of paresis using Regex

15 Sep 2011

OriginalGriff

There is no sensible regex which will do that - it is a job for a sort routine.The easiest way is to convert the string to a character array, sort it, and convert back to a string again.string s = "bcade";char[] chars = s.ToCharArray();Array.Sort(chars);s = new...

regular-expression

Email validation problem REGEX on IE7

22 Sep 2011

Tommi Kemppi

3 alternatives

Hi, I have an IE7 spesific REGEX problem.I'm validating Email Address with the following regex:^\s*[a-zA-Z0-9_\+-]{1,63}(\.[a-zA-Z0-9_\+-]{1,63})*@(?=[a-zA-Z0-9-\.]{0,255}\.?\s*$)[a-zA-Z0-9-]{1,63}(\.[a-zA-Z0-9-]{1,63}){0,126}\.([a-zA-Z]{2,63})\.?\s*$This works every modern browser but...

regular-expression

I need a regular expression for quoted strings

30 Sep 2011

PJ Arends

2 alternatives

I recently downloaded some source files that seem to be exactly what I need for a project of mine. The only problem is that it is written for ANSI builds only, it has no UNICODE support.I now want to change all string literals from "text text" to _T("text text") by wrapping them in the _T...

C++

Visual-Studio

regular-expression

I need a regular expression for quoted strings

30 Sep 2011

Mehdi Gholam

Try this :search for : \".*\"replace with : _T(\0)

C++

Visual-Studio

regular-expression

regular expressions to nfa

24 Oct 2011

OriginalGriff

If you need to understand a Regex, get a copy of Expresso [^] - it's free, and it examines, explains and generates Regular expressions.

regular-expression

string replace with regex while ignoring a pattern

13 Nov 2011

Prerak Patel

(?!{[^{]*)buy(...

How to validare date and time using regulare expression...?

15 Nov 2011

Not Active

Why even bother with the validation. Don't allow a date/time to be entered as text, use a calendar control. Or use DateTime.TryParse to validate

regular-expression

What is the meaning of this code

20 Nov 2011

R. Giskard Reventlov

It is a regular expression: you can learn about them by starting here[^] and reading through some of the tutorials.

regular-expression

What is the meaning of this code

20 Nov 2011

Uday P.Singh

Have a look at this article to get started in Regular Expression:An Introduction to Regular Expressions[^]hope it helps :)

regular-expression

What is the meaning of this code

20 Nov 2011

jeet786

this is one type of Regular expression.You can get the different type of regular expression from the site:http://regexlib.com/UserPatterns.aspx?authorid=0ebe8f93-b71b-4d1c-bfc2-0b583c464641[^]

regular-expression

What is the meaning of this code

21 Nov 2011

moneymakermaster

http://www.regular-expressions.info/reference.html[^]

regular-expression

Regular expression problem?

26 Nov 2011

RaisKazi

Have a look at below articles.The 30 Minute Regex TutorialLearn Regular Expressions (RegEx) with Ease

.NET

Microsoft

regular-expression

Can't get expecting result by using Regular Expression

14 Dec 2011

AspDotNetDev

Try this:\]*>[^>]*\>

regular-expression

How to write regular expression to validate a textbox

22 Dec 2011

OriginalGriff

Regex:\w{1,1...

ASP.NET

regular-expression

C# Regex to find uppercase word

22 Dec 2011

Drazen Pupovac

I tried and its works: List list = new List(); list.Add("ASD"); list.Add("ASFsdsd"); list.Add("adsASFsdsd"); string pattern = @"[A-Z]{3}"; Regex regex = new Regex(pattern); List result = new List(); foreach (string val in...

regular-expression

Searching using Regular expressions as in SQL Like

13 Jan 2012

Member 8566049

2 alternatives

Hi,I spent long time to figure out making the search with regular expressions in C# as it is done in SQL. I cannot find the equivalent of '%' sign of SQL in C#. I have tried to use "(|)" but it gives the 'or' condition.I am wondering if I can use the grouping with "and" condition on...

C#4.0

regular-expression

C# regulara Expression validation

14 Jan 2012

thatraja

Here you goExpresso - A Tool for Building and Testing Regular Expressions[^]The 30 Minute Regex Tutorial[^]

regular-expression

C# regulara Expression validation

14 Jan 2012

psychic6000

here is the ReGex i use for password fields... all the letters and symbols are allowed, and range is from 0 to maximum... * represents= 0 or more than 0 can exists^[a-zA-Z0-9]*[!,@,#,$,%,^,&,*,?,_,~,-,£,(,)]*$but this will not allow a letter once a symbol is entered...so you can modify it...

regular-expression

please help me with the Regular expression

2 Feb 2012

CRDave1988

I hope this will Solve ur problemhttp://lawrence.ecorp.net/inet/samples/regexp-format.php[^]http://www.funduc.com/regexp.htm[^]

regular-expression

Issue with regular expression

23 Mar 2012

Sebastian T Xavier

I have solved this by changing the expression as follows...Regex rx = new Regex(@"password='([a-zA-Z0-9\\%^&_*]+)\'");--------------again i have another question... Here is my updated expression...string x = "user = 'sa' password='e X65dere!@#$%^&*()' server = 'localhost'";Regex...

regular-expression

Validate Phone Number Format

3 Apr 2012

fjdiewornncalwe

Really awesome tool, google is. Use it sometime, you should. Yes, hmmm.phone number regex[^]

regular-expression

How to generate a random string based on a regex in c# .net 2.0

16 May 2012

Jean-Francois Lanouette

4 alternatives

Hi, In our application we have many fields that are validated by using a regex. When the user enter an invalid data we show an error message. What I'm looking for is a way to create an example of a valid entry based on the regex we used to validate the field.I know that there's already...

.NET

.NET2.0

regular-expression

searching in solution using regx in visual studion

18 May 2012

VJ Reddy

The reason is that , is not to be escaped. So \, is interpreted as \ and , characters separately hence the required match is not found. Further .* in start is not necessary and \s* is also not necessary as . matches white space too. So the following pattern can be used$.*,.*,.*$ but...

Visual-Studio

ASP.NET

regular-expression

Regular expression for finding a word

26 May 2012

Member 8491154

2 alternatives

I have a long string of characters as input and I want to count the number of words in that string. How can I do it through regular expression?

ASP.NET

string

regular-expression

Regular Expression to allow no more or less than 21 characters in excel cell using VBA

14 Jun 2012

Sunny_Kumar_

1 alternative

Hi,I want to verify the characters entered in excel sheet' cell using vba. I'm trying this with the pattern "^[a-zA-Z0-9]{21,21}$". I want this to match exactly 21 characters (can be alphanumeric) and no more or less than that. Its working fine when the characters are less than 21 characters...

VBA

MS-Excel

regular-expression

Regex for not containing some words

21 Jun 2012

FrewCen

3 alternatives

Hi all. I have small problem I have some input text. I want to match that text but only then, when it not contains some words. I know how to do similar thing with characters ([^ChArAcTeRsWhItChIdOnTwAnT]). So my question is: is there any way how to get text starting with some words and ending...

string

text

regular-expression

ReGex expression for names

25 Jun 2012

OriginalGriff

I wouldn't use a regex directly - I would de-regionalize my data first. This is the way I do it:/// /// Remove Diacritics from a string/// This converts accented characters to nonaccented, which means it is/// easier to search for matching data with or without such accents.///...

regular-expression

Looking for Amadeus EDIFACT documentation

29 Jun 2012

R. Giskard Reventlov

Let me Google[^] that for you.

regular-expression

Looking for Amadeus EDIFACT documentation

29 Jun 2012

Dave Kreskowiak

Not in Google, huh?Then explain how I found this[^], this[^], and this download site[^] for the documentation.EDIT:And I forgot to post this guide[^] on understanding EDIFACT.I found that stuff in all of 10 seconds on Google. You really need to upgrade your Google-Fu skills.

regular-expression

Confusion Regular expression problems rules

4 Jul 2012

Raje_

your confusion are for sure. let me try to remove your confusion.[..] :- it means it has explicit set of character to match.^ :- it means start of string.$ :- it means end of string.there are more like--\ :- preceding one of the above or down.. :- any character except new...

regular-expression

Find and replace words using Regex

5 Jul 2012

OriginalGriff

Regexes are clever beasts, one opf the overloads for Rexex.Replace uses a match evaluator delegate: http://msdn.microsoft.com/en-us/library/cft8645c.aspx#Y0[^] which allows you to do further processing on the text matched by the Regex.If you write your routine to compare the match text as...

regular-expression

Find and replace words using Regex

5 Jul 2012

Rahul Rajat Singh

I think this article could be of some help.Find and Replace with Regular Expressions[^]

regular-expression

RegEx + maximum length issue

9 Jul 2012

Vitaly Tomilov

2 alternatives

Guys,I've got a little lost with regular expressions in .NET 4.0. Can't understand why RegEx ignores maximum length in the pattern. See the code below...using System;using System.Text.RegularExpressions;namespace RegExTests{ class Program { static void Main() { bool...

C#4.0

regular-expression

Regular Expression for Non decimal positive integer ranging between 0 to 999999

12 Jul 2012

Mehdi Gholam

Try the following:\s+\d{1,6}\s+It will give you 1234 with the following data :12345671234abc1111

ASP.NET

regular-expression

regular expression which allow both decimals as well as integers

23 Jul 2012

vaibhav mahajan

2 alternatives

Hello everyone,I need to write a regular expression which will allow numbers like1.23 and 1in to the text-box. Decimal point is not the compulsion.Any suggestion or links are welcome..!!

C#2.0

ASP.NET

regular-expression

regular expression which allow both decimals as well as integers

23 Jul 2012

Vedangi

Regular Expression is : ^[0-9]\d{0,9}(\.\d{1,3})?%?$ [0-9] : for integers which allows integers from 0 to 9 d{0,9}: this will take up to 10 digits \. : for decimal d{1,3} : for decimal up to three digits

C#2.0

ASP.NET

regular-expression

C# regular exprsssions extract content from string with tag name?

26 Jul 2012

sjelen

Try something like this:\[down]([^"]+)"[^(?[^\s*)+\[/down]

regular-expression

how to make 'password' are not preceded and not followed by 'validate' in this string.

29 Jul 2012

Christian Graus

Probably (?!.*validate)password(?!.*validate), so it checks before and after.

regular-expression

regular expression to constraint the password input

19 Aug 2012

OriginalGriff

It's complex - but possible:^.*(?=.{8,10})(?=.*[!"£$%^&*()_])(?=.*[a-zA-Z]).*$The characters between the '[' and ']' are the permitted special characters. To be honest, I wouldn't use a regex for this - I'd do it in code, it's a lot more maintainable.

regular-expression

Phone Number Validation

21 Aug 2012

Matt T Heffron

You only need a single RegEx.Use the conditional quantifiers in the Regex:Case eValidateInput.IsPhoneNumberWithPlus Dim objRegEx As New System.Text.RegularExpressions.Regex("^\+?\s?\d{3}\s?\d{3}\s?\d{4}$") If Not objRegEx.IsMatch(InputValue) Then sValidationMsg = "'" &...

regular-expression

Reguler Expression validation to allow blank/empty and decimal/integer values

29 Aug 2012

fjdiewornncalwe

You have the Required attribute on there. If a value is required it cannot be null. The regular expression has nothing to do with it.

regular-expression

Help needed in Regular Expression

6 Sep 2012

Sangramsingh Pawar

See below article you will find solution yourselfThe 30 Minute Regex Tutorial[^]

regular-expression

Help needed in Regular Expression

6 Sep 2012

BillW33

You should make an effort to learn more about Regular Expressions. A good place to get started is here. Another very helpful site is regexlib[^]; they have a large library of Regular Expressions. They also have a RegEx tester[^]. Also a very useful RegEx tool is available here.

regular-expression

Match string not substring

17 Sep 2012

OriginalGriff

So include a space before the match string, and in the replacement.AAAABBB > (CCC + BBB)Search for " BBB" and replace it with " 'BBB'"

regular-expression

how to validate textbox in asp.net

25 Sep 2012

Mits Machhi

try this:

ASP.NET

regular-expression

how to validate textbox in asp.net

26 Sep 2012

Vijay Walunj,Navi mumbai

You can done this in following ways:1.AjaxFilteredTextBoxExtenderhere you first add reference of ajax toolkit and this extender.you can set ValidChars to "." for decimal which allo user to enter numeric value with decimal point.

ASP.NET

regular-expression

Java script regular expression

1 Nov 2012

Niral Soni

try var re = new RegExp('(' + inputfirst + '|' + inputsecond + ')',"g");

HTML5

Javascript

regular-expression

Replacing ' with null

15 Nov 2012

Sanjay K. Gupta

In C# If you want to replace the (') with blankstring name=name.Replace("'","");If you don't want to replace the (')string name=name.Replace("'","''");In SQL If you want to replace the (') with blankprint replace('isola d''istria','''','')

regular-expression

Regex validation required

12 Dec 2012

Zoltán Zörgő

What about this:^0\d{9}(,0\d{9}){0,9}$

regular-expression

RegEx string pattern

14 Jan 2013

OriginalGriff

Regex is probably the wrong tool, unless you are trying to match that string as a pattern:"A slash, followed by two uppercase Alpha, and three digits, then a other slash, followed by ..."If you want to find an exact string, then use string comparison instead - it's a lot easier and a lot...

regular-expression

C# regular expression

20 Jan 2013

Andreas Gieriet

How about:...string input = ...;Match match = Regex.Match(input, @"\w+\s*=\s*(\d+(?:\.\d+)?\s*[A-Z]+)");string size = match.Success ? match.Groups[1].Value : string.Empty;...Depends very much on the input string if the @ and { are relevant to properly match the text.Note: If you...

regular-expression

replace all occurrence of :) with sometext in javascript regex

18 Feb 2013

Manfred Rudolf Bihy

Hi Aarti,there are actually two issues with your example.There is no need for quotes around your pattern literal. Regular Expressions are first class citizens in JavaScript. Look here Regular Expression Cheat Sheet[^] or here W3 Schools RegExp Object[^]Certain characters in Regular...

Javascript

regular-expression

Regular expression to validate string

26 Feb 2013

Mike Meinz

I use TXT2RE Regular Expression Generator to quickly create Regular Expressions.

ASP.NET

regular-expression

Regular expressions for accept numbers and negative numbers

18 Mar 2013

OriginalGriff

Try:-?\d+Get a copy of Expresso [^] - it's free, and it examines and generates Regular expressions.

regular-expression

number must be numeric up to 9 digits

21 Mar 2013

Sergey Alexandrovich Kryukov

Thank you for clarification. It finally looks like Regex is not helpful at all.Before entering data, perform filtering, to filter out everything except decimal digits, '.' and backspace (code point 8). Unfortunately, masked edit won't help much. For example, if this is...

regular-expression

Regular Expression Builder

31 Mar 2013

Thomas Daniels

Hi,Try Expresso[^]

regular-expression

Regular Expression Builder

31 Mar 2013

Kenneth Haugland

This is the one I use:Expresso - A Tool for Building and Testing Regular Expressions[^]OThers are also availiable:http://www.codeproject.com/search.aspx?q=regex+tool&x=0&y=0&sbo=kw[^]

regular-expression

How to replace charecters in a string with wildcard

8 Apr 2013

OriginalGriff

That's because '\d' is rexeg-speak for a digit: '0' to '9', Since your string contains "abcdefgh" and no digits at all, it will never match.Try@"DATE=.{7}"for seven of any character, or:@"DATE=\w{7}"for seven alphnumerics, or:@"DATE=[a-zA-Z]{7}"for seven upper or lower case...

regular-expression

Regular expression for splitting a comma-delimited string

10 May 2013

Pallavi Waikar

Try linq with regex examplestring s = @"1.3#, 2.99, 3\t, 4#2/2/1019#, 5, asd,, 'Howdy, Howdy, Howdy', a;sdlkf";string[] myValues = Regex.Split(s, @"(?:,\s+)|(['""].+['""])(?:,\s+)").Where(s2 => !string.IsNullOrEmpty(s2)).ToArray();foreach (string s1 in myValues) MessageBox.Show(s1);

regular-expression

Regular Expression for special characters?

17 May 2013

Sergey Alexandrovich Kryukov

Solution 1 provides right idea. Besides, you may want to do a different thing: instead of validation, you could filter out unwanted character while they are entered. In a Web application, this is done in JavaScript. Just one detail, often forgotten, don't forget to allow "character" #8,...

ASP.NET

web_development

regular-expression

Build Regular expression fot this a to z and 0 to 9 and also allow these cahr & " ; , . - # @ / {}

1 Jul 2013

sjelen

var r = new System.Text.RegularExpressions.Regex("^[a-z0-9&\";,.\\-#@/{}]*$");

regular-expression

want regular expression for allow alphanumeric,space and hypen

8 Jul 2013

ArunRajendra

You should be able to find it in this site. http://regexlib.com/[^]

ASP.NET

validation

regular-expression

want regular expression for allow alphanumeric,space and hypen

8 Jul 2013

Thanks7872

Try this ^[A-Za-z0-9- ]+$Regards.. :laugh:

ASP.NET

validation

regular-expression

Everything Except regex

14 Aug 2013

DominicZA

1 alternative

I am trying to remove all the instances of a number except for a number that I supply. This is currently what I have:var ar = '10,13,9,8,13,10,5,3,1,9,5,8,10,2,6';var removed = ar.replace(new RegExp('[^(' + 10 + ')]', 'g'), '')The result of this is "101110110", but I need it to...

Javascript

regular-expression

Regular Expression Pattern with \w+ and its behaviour

22 Aug 2013

Zoltán Zörgő

Foreworda) Take a long tour here?: http://www.regular-expressions.info/tutorial.html[^]b) Install this little tool, and play with it: http://www.weitz.de/regex-coach/[^]Now the explanation\w stands for "word character", usually [A-Za-z0-9_]. Notice the inclusion of the underscore and...

regular-expression

A little Help in Regular Expressions

30 Aug 2013

OriginalGriff

Simple: you have told it not to!If I compact this a bit it may be a bit more obvious:^x+y+(z+)?$Where x, y, and z are the "phrases" in your regex.That requires "one or more x", then "one or more y", then "one or more z" - a minimum of three characters.I don't know exactly what you...

PHP

regular-expression

Need to search specific text from similar matches

24 Sep 2013

Maciej Los

Try: ^Two as pattern,^ means: match start of string ;)

.NET

regular-expression

RegEx - Complex Regex Function, Ignore Spaces, negate only certain letters

12 Oct 2013

Kyle A.B.

This is my final:...

regular-expression

Need a regular expression

24 Oct 2013

thatraja

Check these, you could build yourself new expressions.Expresso - A Tool for Building and Testing Regular Expressions[^]Expresso - The 30 Minute Regex Tutorial[^]

regular-expression

Regex Matching another match

26 Oct 2013

Sergey Alexandrovich Kryukov

The question almost contains the answer. Get Match.Value, which is a string, and use it in another Regex's pattern string. Please see:http://msdn.microsoft.com/en-us/library/system.text.regularexpressions.capture.value.aspx[^].—SA

regular-expression

RegEx : How to match string that is not HTML tag or Special Char...?

1 Nov 2013

Brian A Stephens

What you want is negative lookbehinds:(?]*|&[^;]*)(\b160\b|\bspa\b)and replace with$1The negative lookbehind syntax is: (?

ASP.NET

regular-expression

Regex c# pattern match

9 Nov 2013

OriginalGriff

I'm not sure that a regex is exactly what you are looking for here: it isn't a text matching process, it's a pattern matching process. It can't tell the difference between:mid nightandmidnight tonightThey are both "a word" followed by "a space", followed by "a word".But if you want to...

Slow Regular Expression Explanation

19 Nov 2013

Trapper-Hell

2 alternatives

Can someone please provide a thorough explanation of what's going on with the Regex below?I was checking some of the features introduced in .NET Framework 4.5 and one of the mentioned benefits was Regex Timeout.In the example the following Regex is used: ^(\d+)+$ on the following text:...

regular-expression

.Net Regex - Help needed

28 Nov 2013

LGSon2

After struggling with google search and reading about balanced group I finally got things working, though I had to alter the pattern slightly to make it work, at least for me :)Regex: ...

.NET

regular-expression

Email Id’s of Employee has restrictions

6 Dec 2013

Brian A Stephens

First of all, your regex is overly complicated and doesn't quite fit standards for domain names. - You have | pipes inside of bracketed character classes, which are unnecessary since everything inside brackets is already an alternation. Furthermore, it means that you have inadvertently...

regular-expression

Use regex to replace

13 Dec 2013

BobJanova

You can't do arithmetic with a regex. You can extract the current value with a regex (@"$(\d+)$$"), do arithmetic on it in code and then replace the value:str = str.Substring(0, str.LastIndexOf('(')) + newValue + ")";

regular-expression

Regular Expression Help

14 Jan 2014

PIEBALDconsult

(?i)\b\d+$ seems to work on the provided text.Oh, and you'll likely need to redirect or pipe the text. (Maybe you already are, but you don't show it.)

regular-expression

Regex pattern to match given example word

23 Jan 2014

Peter Leow

If you want regex pattern for the following sample outputs:text.45example.90value.46then try:\b[a-zA-Z]*[.][\d][\d]\bElse if you only want those alphabets:textexamplevaluethen try:\b[a-zA-Z]*(?=[.][\d][\d]\b)+++++++++++++++++++++++++++++++++++++++++[amended upon...

regular-expression

Regex pattern needed for the below output

23 Jan 2014

Peter Leow

Try this:^[a-zA-Z]*[.][\d]+\b

regular-expression

Regular-Expression For String Splitting..

31 Jan 2014

Brian A Stephens

This regex will do it:(\$\d+(,\d{3})*|\d+(,\d{3})*\$)Explanation: - You need to escape the dollar sign, since it's a special character in regex - The main part of the regex is any number of digits possibly followed by combinations of comma and three digit sections - There's an...

string

regular-expression

Regular-Expression For String Splitting..

31 Jan 2014

Peter Leow

string

regular-expression

Need Regex for asp.net website

14 Feb 2014

Peter Leow

Try this:^(http[s]?://)?[w]{3}[.]([a-z0-9]+[.])+[a-z]{1,3}$Convert the url into small case first before applying this regex pattern.

ASP.NET

regular-expression

Issue with the java regex

26 Feb 2014

Kornfeld Eliyahu Peter

Your regex look like this - http://www.regexper.com/#(.*%3F)%3A%5C%5C%7B(.*%3F)%5C%5C%7D%3B[^]I believe this will do better - http://www.regexper.com/#(.%2B%3A)(%5C%7B.%2B%5C%7D)%3B[^]Also - when you have to check a string for repeating pattern use split to find all the parts...

Java

regular-expression

[Not a question] Write Regular expression that replaces email with Email

5 Mar 2014

Thomas Daniels

Try this:string textWithEmails = "Christian has christian@email.com. Olof has the email olof@gmail.com. Lars has the emai britt123@oxford.co.uk.";string filteredStr = Regex.Replace(textWithEmails,...

regular-expression

Object Reference is required for the non-static field?

21 Mar 2014

ZurdoDev

The error says that you have to have an instance for the object you are referencing. You are trying to reference without first having created an instance of it which you can't do because it is not static.

regular-expression

Regular expression for URL Validator

8 Apr 2014

Er. Puneet Goel

Text this: Verified by me:Regex for urls with or without http Page$(function()...

regular-expression

Regular expression for IPV4 address validation

15 Apr 2014

Sebastian T Xavier

Modified the expression as shown below and solved this case...private bool IsUrlValid(string url){ Regex urlRx = new...

C#3.5

regular-expression

regular-expression, in asp.net how to use

17 Apr 2014

Sanket Saxena

Try this:((\+*)((0[ -]+)*|(91 )*)(\d{12}+|\d{10}+))|\d{5}([- ]*)\d{6}

regular-expression

Need Regular Expression

28 Apr 2014

thatraja

Google gave me sites like http://regexlib.com/[^], browse thereORCreate yourself. Check theseExpresso - A Tool for Building and Testing Regular Expressions[^]The 30 Minute Regex Tutorial[^]

ASM

compiler

regular-expression

Regex to extract column names whitin a sql query

6 May 2014

Maciej Los

Why to force doors wide open?TSQLParser[^] class will do it for you.SQL Parser[^]Parse Transact SQL to Check Syntax[^]If it wont be enough, let me know and i'll improve my answer ;)

SQL

regular-expression

Regex for Multiple Check Box

7 May 2014

DamithSL

why regex? you can use client side validation using javascript or jquary jQuery see if any or no checkboxes are selected[^]and you may need do a server side validation, thenCheckBox[] checkboxes = new CheckBox[] { CheckBox1, CheckBox2, CheckBox3, CheckBox4 };if (!checkboxes.Any(c =>...

Regex for Multiple Check Box