All Regex Solutions on Gang of Coders

Total of 1192 Regex Solutions

Regular expression to match a line that doesn't contain a word

Regex Pattern Matching Regex Negation

\d less efficient than [0-9]

C#Regex Performance

Java how to replace 2 or more spaces with single space in string and delete leading and trailing spaces

Java Regex String Replace

How to use JavaScript regex over multiple lines?

Javascript Regex

Searching for UUIDs in text with regex

RegEx: Grabbing values between quotation marks

Match text between two strings with regular expression

Python Regex Python 2.x

Find "one letter that appears twice" in a string

Python Regex Python 2.7

regex to find a pair of adjacent digits with different digits around them

Python Python 3.x Regex

Matching an optional substring in a regex

How can I use a variable in the replacement side of the Perl substitution operator?

Regex Perl Substitution

Match at every second occurrence

How do I return only the matching regular expression when I select-string(grep) in PowerShell?

Regex Powershell Grep

Tilde operator in Regular expressions

Replace URLs in text with HTML links

Php Regex Url Preg Replace Linkify

How can I invert a regular expression in JavaScript?

Javascript Regex

Regular expression for a string literal in flex/lex

C Regex Lex String Literals Flex Lexer

Extract string from string using RegEx in the Terminal

Regex Bash Grep

Ruby global match regexp?

Replace specific characters within strings

R Regex Replace Gsub String Substitution

Split a string by spaces -- preserving quoted substrings -- in Python

Passing regex modifier options to RegExp object

Javascript Regex String

Python regular expressions OR

How to use named groups when performing a Regex.Replace()

C#Regex Replace

Regex number between 1 and 100

Extracting pairs of words using String.split()

Java Regex String Split

Find lines not starting with " in Notepad++

Regex Notepad++

R dplyr: rename variables using string functions

Regex R Rename Dplyr

Regex with replace in Golang

Capture groups with Regular Expression (Python)

Regex: Check if string contains at least one digit

How to parse HTML with PHP?

Php Html Regex Html Parsing

What's the difference between () and [] in regular expression patterns?

How do I get the YouTube video ID from a URL?

Javascript Regex Url Youtube

Regex exec only returning first match

Javascript Regex

PHP regular expression - filter number only

Are Perl regexes turing complete?

Regex Perl Turing Complete

Javascript/jQuery: Split camelcase string and add hyphen rather than space

Javascript Regex Split Camelcasing

Forward slash in Java Regex

Regular expression for valid filename

Regex: match pattern as long as it's not in the beginning

Regex Regex Negation

Regex to split a CSV

Regex Csv Asp Classic Split Quotes

Can not extract the capture group with either sed or grep

Regex Linux Sed Grep

validate natural input number with ngpattern

Angularjs Regex Angularjs Validation

Extract hostname name from string

Javascript Jquery Regex

Why is `\s+` so much faster than `\s\s*` in this Perl regex?

Regex Perl Regex Greedy

"Variable length lookbehind not implemented" but it isn't variable length

Finding a DOI in a document or page

Is there an online RegexBuddy-like regular expression analyzer?

R:how to get grep to return the match, rather than the whole string

Java: Split string when an uppercase letter is found

Java Regex String

regular expression for Indian mobile numbers

how to make vim show ^M and substitute it

Matching numbers with regular expressions — only digits and commas

.Net Regex Numbers Matching

Validate a file name on Windows

Java Regex Windows String Filenames

grep: group capturing

Regex Linux Bash Grep

Regex and ISO8601 formatted DateTime

Javascript Regex Datetime Iso8601

Comma Separated Numbers Regex

How to match digits in regex in bash script

Passing a function to re.sub in Python

How to do named capture in ruby

apache HTTP:X-Forwarded-Proto in .htaccess is causing redirect loop in dev environment

Regex Amazon Web-Services Apache .Htaccess Mod Rewrite

Extract src attribute from img tag using BeautifulSoup

Python Regex Beautifulsoup

How to change lower case to upper using regular expressions in Visual Studio Code

Regex Visual Studio-Code

Groovy syntax for regular expression matching

How can I replace multiple empty lines with a single empty line in bash?

Extract parameter value from url using regular expressions

Javascript Regex Url

Can I turn on extended regular expressions support in Vim?

Regex Vim Command Line

javascript regex : only english letters allowed

Javascript Regex

How do I replace or find non-printable characters in vim regex?

Regex Vim Non Printable

Vim Regex : How to search for A AND B NOT C

How to create a regex that will match an arbitrary sequence of spaces and tabs

Regex for 1 or 2 digits, optional non-alphanumeric, 2 known alphas

Return true/false for a matched/not matched regex

Javascript Regex

Powershell: match operator returns true but $matches is null

Regex Powershell

Regular expressions in a Bash case statement

Regex Bash Case Glob

What is a regex to match a string NOT at the end of a line?

In Python, how do I split a string and keep the separators?

Escaping regex string

Django url pattern - string parameter

Python Regex Django

Efficient regex for Canadian postal code function

Javascript Regex

How to replace comma with a dot in the number (or any replacement)

Javascript Regex Replace Jscript

Sublime Text: Regex to convert Uppercase to Title Case?

Regex String Sublimetext Sublimetext3

JavaScript Regex Global Match Groups

Javascript Regex Pattern Matching

Detect if a string contains uppercase characters

Using named matches from Go regex

Replace slash in Bash

Regex Linux Bash Tr Slash

Regular Expression only match if String ends with target

select columns based on multiple strings with dplyr contains()

R Regex Dplyr Matching Multiple Matches

Why is this regex allowing a caret?

How do I use a regex in a shell script?

Regex Bash Shell

How do I do a partial match in Elasticsearch?

Json Regex Parsing Url Elasticsearch

RegEx for Javascript to allow only alphanumeric

Javascript Regex

Search in VS Code for multiple terms

Regex Search Visual Studio-Code

Replace the last part of a string

Java Regex String Replace

Regex: match word that ends with "Id"

How does MatchEvaluator in Regex.Replace work?

C#.Net Regex Replace Matchevaluator

Does .NET Regex support global matching?

Code Golf: Regex parser

Regex Language Agnostic Code Golf Rosetta Stone

Javascript Regexp - Match Characters after a certain phrase

Javascript Regex

Check if a string matches a regex in Bash script

Regex Bash Shell Scripting

How can I add a string to the end of each line in Vim?

Regex Vim Replace Match

Split on different newlines

Ruby Regex Split Newline

Negating a backreference in Regular Expressions

Regex Backreference Regex Group Negate

Split string on commas but ignore commas within double-quotes?

Python Regex Csv Split Double Quotes

Get the extension of a file contained in an NSString

Iphone Objective C Regex Ios5 Nsstring

Support of \K in regex

Regex for youtube URL

How can I match overlapping strings with regex?

Javascript Regex

regex match any whitespace

Matching a space in regex

Detect strings with non English characters in Python

Python Regex Non English

match Vs exec in JavaScript

Javascript Regex

[A-z0-9]+ regexp matching square brackets

?: Notation in Regular Expression

converting RegExp to String then back to RegExp

Javascript Regex

Regex to match alphanumeric and spaces

Efficiently querying one string against multiple regexes

Regex Algorithm Pcre

MySQL strip non-numeric characters to compare

Practical non-Turing-complete languages?

Regex Finite Automata Turing Complete Halting Problem

Simple regular expression for a decimal with a precision of 2

How to split a string, but also keep the delimiters?

SELECT only rows that contain only alphanumeric characters in MySQL

Regular Expression for formatting numbers in JavaScript

Javascript Regex Formatting

RegEx to select everything between two characters?

Create a case-insensitive regular expression from a string in Ruby

PHP - regex to allow letters and numbers only

Php Regex Preg Match

Find the index of the first digit in a string

Python Regex String

Split string by delimiter, but not if it is escaped

Php Regex Preg Split

How to use regex OR in grep in Cygwin?

Regex Cygwin Grep

How to split long regular expression rules to multiple lines in Python

How to write regular expressions in Objective C (NSRegularExpression)?

Objective C Ios Regex Nsregularexpression

Javascript RegExp + Word boundaries + unicode characters

Javascript Regex Unicode

Remove all special characters with RegExp

Javascript Regex Special Characters

Regex for allowing alphanumeric,-,_ and space

Javascript Jquery Regex

Remove numbers from alphanumeric characters

Removing everything except numbers in a string

Javascript Regex

Vim positive lookahead regex

Faster way to remove stop words in Python

Python Regex Stop Words

Reference - What does this regex mean?

Confusing output from String.split

Java Regex String Class Core

Laravel preg_match(): No ending delimiter '/' found

Php Regex Laravel Laravel 4 Regexp Replace

How to implement a regex for password validation in Swift?

Ios Swift Regex Validation

Match correct addition of two binary numbers with PCRE regex

Template literal inside of the RegEx

Javascript Regex Template Literals

Regular Expression to exclude set of Keywords

Regex Regex Negation

$1 and \1 in Ruby

How to replace a plus character using Java's String.replaceAll method

Find out how many times a regex matches in a string in Python

How to extract domain name from url?

C# Regex Split - commas outside quotes

Regex: Determine if two regular expressions could match for the same input?

Java regex replaceAll multiline

Java Regex Replaceall

Remove not alphanumeric characters from string

Javascript Regex

Regular expression for 10 digit number without any special characters

RegEx for an IP Address

Python TypeError on regex

Python Regex Python 3.x Typeerror

Negative regex for Perl string pattern match

Escaped Periods In R Regular Expressions

sed: Can my pattern contain an "is not" character? How do I say "is not X"?

Returning a regex match in VBA (excel)

Regex Excel Vba

Regex pattern for HH:MM:SS time string

Regex Expression Hour Seconds Minute

sed - how to do regex groups using sed

Regex Linux Sed

Convert result of matches from regex into list of string

Python re.sub(): how to substitute all 'u' or 'U's with 'you'

Matching special characters and letters in regex

Javascript Regex Special Characters

regular expression for finding 'href' value of a <a> link

Replacing accented characters with plain ascii ones

Javascript Regex String Utf 8

How to replace captured groups only?

Javascript Regex

Is there a way to do negative lookahead in vim regex?

Regex Vim Negative Lookahead

Using more than one flag in python re.findall

Python Regex Python Re

How do I replace a newline in Atom?

Regex Atom Editor

What does '\K' mean in this regex?

Regex Bash Grep

Disable Unnecessary escape character: \/ no-useless-escape

Regex Reactjs Eslint

Why is this regular expression so slow in Java?

Java Python Regex Performance Perl

How is the AND/OR operator represented as in Regular Expressions?

Regex Operators

Get Substring between two characters using javascript

Javascript Regex String Substring

Regular expression to match non-ASCII characters?

Javascript Jquery Regex

Difference between matches() and find() in Java Regex

How to extract a substring from a .NET RegEx?

Fuzzy Regular Expressions

Regex String Fuzzy Search Fuzzy Comparison Tre Library

Why does sed require 3 backslashes for a regular backslash?

Regex Group in Perl: how to capture elements into array from regex group that matches unknown number of/multiple/variable occurrences from a string?

Regex Perl Grouping Match

Regular Expression Rules in Outlook 2007?

Regex Vba Vbscript Outlook Outlook 2007

Python: Regular expression to match alpha-numeric not working?

regular expression to match exactly 5 digits

Javascript Regex Match Digit

R: Find the last dot in a string

Remove style attribute from HTML tags

Php Regex Tinymce

Detect and extract url from a string?

Best way to convert IEnumerable<char> to string?

.Net Regex Performance Performance Testing

Get the string within brackets in Python

Python Regex Brackets

PHP Regex to Remove http:// from string

Regular expression to validate US phone numbers?

Javascript Regex

Split by Caps in Javascript

Javascript Regex Split

Regex JavaScript image file extension

Javascript Regex Image

How to use regex to parse a number from HTML?

Variable-length lookbehind-assertion alternatives for regular expressions

Php Javascript Python Regex Perl

Greasemonkey/ Tampermonkey @match for a page with parameters

Javascript Regex Greasemonkey Tampermonkey Userscripts

Remove all special characters and case from string in bash

Regex Linux Bash Shell Parsing

Why does this take so long to match? Is it a bug?

Python Regex Performance State Machine

How do I remove first 5 characters in each line in a text file using vi?

Regex Unix Text Command Vi

Interactive search/replace regex in Vim?

How to wrap part of a text in a node with JavaScript

Javascript Html Regex Algorithm

java.util.regex.PatternSyntaxException: Dangling meta character '+' near index 0 +

Negative matching using grep (match lines that do not contain foo)

Regex to match any character including new lines

Replace multiple strings with multiple other strings

Javascript node.js Regex String Replace

JavaScript regex multiline text between two tags

Javascript Regex

Splitting string with pipe character ("|")

Javascript replace with reference to matched group?

Javascript Regex

Java: splitting a comma-separated string but ignoring commas in quotes

Java Regex String

Split large string in n-size chunks in JavaScript

Javascript Regex String Split

How do I access named capturing groups in a .NET Regex?

AWK: Access captured group from line pattern

How to match, but not capture, part of a regex?

How to invert a grep expression

Regex Linux Grep

Is there a regular expression to detect a valid regular expression?

How to make Regular expression into non-greedy?

Javascript Regex Filter Expression Regex Greedy

How to validate an email address in PHP

Php Regex Email Email Validation

How does Stack Overflow generate its SEO-friendly URLs?

Regex Language Agnostic Seo Friendly Url Slug

Named capturing groups in JavaScript regex?

Javascript Regex

Named regular expression group "(?P<group_name>regexp)": what does "P" stand for?

Python Regex Regex Group

Regex (grep) for multi-line search needed

Regex Linux Cygwin Grep

Match two strings in one line with grep

Regex Linux String Grep

Remove all special characters from a string

Php Regex Url Slug

Javascript Regex: How to put a variable inside a regular expression?

Javascript Regex Variables

Regex to match string containing two names in any order

How to use '-prune' option of 'find' in sh?

Regex Shell Find Manual

python re.sub group: number after \number

Python Regex Numbers Regex Group

Regex for matching something if it is not preceded by something else

How do I extract text that lies between parentheses (round brackets)?

Regular expression for a string that does not start with a sequence

Regex for string not ending with given suffix

Is there a version of JavaScript's String.indexOf() that allows for regular expressions?

Javascript Regex Indexof

jQuery validate: How to add a rule for regular expression validation?

Jquery Regex Jquery Validate

How to find patterns across multiple lines using grep?

Grep regex NOT containing string

Concrete JavaScript regular expression for accented characters (diacritics)

Javascript Regex Unicode

Regular expression to allow spaces between words

Converting any string into camel case

Javascript Regex Camelcasing

Match linebreaks - \n or \r\n?

Regex Language Agnostic Line Breaks

How do I negate a test with regular expressions in a bash script?

Regex Bash Conditional Negate

Regex that accepts only numbers (0-9) and NO characters

How can I use Unicode-aware regular expressions in JavaScript?

Javascript Regex Unicode Character Properties

Regular expression to limit number of characters to 10

Regex Email validation

C#Regex Validation

Remove multiple whitespaces

Php Regex String Preg Replace Whitespace

How to check for valid email address?

Python Regex Email Validation Email Address

Use String.split() with multiple delimiters

Can regular expressions be used to match nested patterns?

Regex Nested Finite Automata

Regular Expressions and negating a whole character group

Regular Expression to get a string between parentheses in Javascript

Javascript Regex String

RE error: illegal byte sequence on Mac OS X

Regex Macos Bash Sed

Regex how to match an optional character

Regex String Operators

Regex to validate date formats dd/mm/YYYY, dd-mm-YYYY, dd.mm.YYYY, dd mmm YYYY, dd-mmm-YYYY, dd/mmm/YYYY, dd.mmm.YYYY with Leap Year Support

How to validate phone numbers using regex

Regex Validation Phone Number

Check whether a string matches a regex in JS

Javascript Regex Match

What is the ultimate postal code and zip regex?

Regex Zipcode Postal Code

Regex to test if string begins with http:// or https://

Regular expression to get a string between two strings in Javascript

Javascript Regex String

How to filter rows in pandas by regex

Python Regex Pandas

Using regular expressions to parse HTML: why not?

Regex Html Parsing

Replacing all non-alphanumeric characters with empty strings

Java Regex Non Alphanumeric

Remove insignificant trailing zeros from a number?

Javascript Regex Math Numbers

Replace only some groups with Regex

C#Regex Replace

Regular expression for matching HH:MM time format

RegEx to extract all matches from string using RegExp.exec

Javascript Regex Regex Group Taskwarrior

Fastest way to check a string contain another substring in JavaScript?

Javascript Regex Substring

What is the best regular expression to check if a string is a valid URL?

Regex Url Language Agnostic

Difference between \A \z and ^ $ in Ruby regular expressions

RegEx for matching UK Postcodes

Regex Validation Regex Group Postal Code

regex to match a single character that is anything but a space

php Replacing multiple spaces with a single space

Php Regex Formatting String Formatting Ereg Replace

Switch statement for string matching in JavaScript

Javascript Regex Switch Statement

Why are regular expressions so controversial?

Regex - Should hyphens be escaped?

Search and replace in bash using regular expressions

How do you implement a good profanity filter?

Php Regex User Input

Python non-greedy regexes

Python Regex Regex Greedy

How can I match a string with a regex in Bash?

Regex String Bash

Add spaces before Capital Letters

How to do a non-greedy match in grep?

Regex Shell Command Line Grep Regex Greedy

Match exact string

Javascript Regex

Swift extract regex matches

Ios Regex String Swift

Convert camelCaseText to Title Case Text

Javascript Regex String

Regex not operator

Splitting a Java String by the pipe symbol using split("|")

Java Regex String

How to escape regular expression special characters using javascript?

Javascript Regex

Validate phone number with JavaScript

Javascript Regex

Return positions of a regex match() in Javascript?

Javascript Regex Match String Matching

Regular expression for exact match of a string

Java Regex Capturing Groups

Regex Named Groups in Java

Extract part of a regex match

Python Html Regex Html Content-Extraction

Convert a char to upper case using regular expressions (EditPad Pro)

Detect URLs in text with JavaScript

Javascript Regex Url

RegEx to make sure that the string contains at least one lower case char, upper case char, digit and symbol

Replace first occurrence of pattern in a string

How can I validate an email address using a regular expression?

Regular Expressions: Is there an AND operator?

Regex Lookahead

(grep) Regex to match non-ASCII characters?

Regex Unicode Grep Ascii Non Ascii-Characters

DeprecationWarning: invalid escape sequence - what to use instead of \d?

Python Regex Python 3.x

Create array of regex matches

How do I perform a Perl substitution on a string while keeping the original?

Regex Perl Replace

Using Regular Expressions to Extract a Value in Java

How to convert a Title to a URL slug in jQuery?

Javascript Jquery Regex Slug Slugify

How to convert "camelCase" to "Camel Case"?

Javascript Regex

Regular expression to match standard 10 digit phone number

Regular expressions in C: examples?

How to check if a line is blank using regex

Python extract pattern matches

Does "\d" in regex mean a digit?

Python Regex Encoding Gedit

What to do Regular expression pattern doesn't match anywhere in string?

Html Regex Parsing

How to replace a whole line with sed?

How can I strip all punctuation from a string in JavaScript using regex?

Javascript Regex

What is a word boundary in regex?

Regex Word Boundary

What is the difference between .? and . regular expressions?

Regex Regex Greedy Non Greedy

Match multiline text using regular expression

Visual Studio Code Search and Replace with Regular Expressions

Regex Visual Studio-Code

Regular Expression to match only alphabetic characters

How do you match only valid roman numerals with a regular expression?

Regex Roman Numerals

How to remove all whitespace from a string?

R Regex String R Faq

Javascript and regex: split string and keep the separator

Javascript Regex

Split string on the first white space occurrence

Javascript Regex String

regular expression: match any word until first space

How does RegexOptions.Compiled work?

How to extract base URL from a string in JavaScript?

Javascript Regex String Url

Java; String replace (using regular expressions)?

Match everything except for specified strings

Regex, every non-alphanumeric character except white space or colon

How to extract a string using JavaScript Regex?

Javascript Regex String Icalendar

Validating email addresses using jQuery and regex

Regex Validation Email Email Validation

Symbol for any number of any characters in regex?

Difference between ?:, ?! and ?=

Javascript Regex

sed one-liner to convert all uppercase to lowercase?

Regex select all text between tags

Html Regex Html Parsing

PHP string "contains"

Php Regex String

What's the difference between "groups" and "captures" in .NET regular expressions?

typeof for RegExp

Javascript Regex Constructor Instanceof Typeof

Regex to validate password strength

Regex Passwords

Regex doesn't work in String.matches()

What flavor of Regex does Visual Studio Code use?

Regex Replace Visual Studio-Code

Regular expressions in an Objective-C Cocoa application

Objective C Regex Cocoa

What is the simplest way to convert a Java string from all caps (words separated by underscores) to CamelCase (no word separators)?

Java Regex String

Regular expression for first and last name

Regex Validation

How to get Vim to highlight non-ascii characters?

Regex - how to match everything except a particular pattern

Regular expression for letters, numbers and - _

Regular expression for matching latitude/longitude coordinates?

Java RegEx meta character (.) and ordinary dot?

Regular expression for floating point numbers

Replace all non alphanumeric characters, new lines, and multiple white space with one space

Javascript Regex Replace Alphanumeric

Speed up millions of regex replacements in Python 3

Python Regex String Performance Replace

Interpolating a string into a regex

How can I concatenate regex literals in JavaScript?

Javascript Regex Syntax

Regex match everything after question mark?

Split string based on a regular expression

How to negate specific word in regex?

How to count string occurrence in string?

Javascript Regex String

How do I remove all non-ASCII characters with regex and Notepad++?

Regex Expression Notepad++Non Ascii-Characters

How to split a long regular expression into multiple lines in JavaScript?

Javascript Regex Jslint Expression Readability

Regex using javascript to return just numbers

Javascript Regex

How to exclude a specific string constant?

Regex Regex Negation

Is there a PHP function that can escape regex patterns before they are applied?

Php Regex Escaping

How do I convert CamelCase into human-readable names in Java?

Java Regex String Pascalcasing Humanize

Regex Last occurrence?

Remove empty lines in text using Visual Studio or VS Code

Regex Visual Studio Visual Studio-2010 Visual Studio-Code Line

How to download an entire directory and subdirectories using wget?

Regex Linux Bash Wget

Regex empty string or email

Regex Email String

Learning Regular Expressions

Vim Regex Capture Groups [bau -> byau : ceu -> cyeu]

Regex Vim Capturing Group Regex Group

Find and kill a process in one line using bash and regex

Regex Bash Terminal Awk

How can I match "anything up until this sequence of characters" in a regular expression?

Regular Expression for alphanumeric and underscores

sed: print only matching group

JavaScript .replace only replaces first Match

Javascript Regex Replace

Extract a substring according to a pattern

Visual Studio Code - delete all blank lines - regex

Regex Visual Studio-Code Blank Line

How can I match multiple occurrences with a regex in JavaScript similar to PHP's preg_match_all()?

Javascript Regex

Negative lookbehind equivalent in JavaScript

Javascript Regex Negative Lookbehind

Convert hyphens to camel case (camelCase)

Javascript Regex Camelcasing

Using regular expression in css?

How to extract img src, title and alt from html using php?

Php Html Regex Html Parsing Html Content-Extraction

Java - escape string to prevent SQL injection

Java Sql Regex Escaping Sql Injection

Regex: Specify "space or start of string" and "space or end of string"

Regex Preg Match

Regex for password must contain at least eight characters, at least one number and both lower and uppercase letters and special characters

Javascript asp.net Regex

Visual Studio, Find and replace, regex

Regex Visual Studio-2005 Replace

Regex for string contains?

Regular expression \p{L} and \p{N}

Xml Regex Character Class

RegEx - Match Numbers of Variable Length

grep using a character vector with multiple patterns

Trim spaces from start and end of string

Javascript Regex

Using Java to find substring of a bigger string using Regular Expression

Java Regex String

Regular expression to stop at first match

How do I remove all non alphanumeric characters from a string except dash?

How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops

Regex Excel Vba

Explode string by one or more spaces or tabs

Php Regex Explode

PHP Regex to get youtube video ID?

Replace first occurrence of string in Python

leading zeros in rails

Ruby Regex Ruby on-Rails-3

How would I get everything before a : in a string Python

Python Regex String Split

What Regex would capture everything from ' mark to the end of a line?

Python regular expressions return true/false

javascript regex - look behind alternative?

Javascript Regex

Difference between \w and \b regular expression meta characters

How to correctly sort a string with a number inside?

Python Regex Sorting String

Remove all special characters from a string in R?

Regex String R Character

Split a string on whitespace in Go?

How do you debug a regex?

Regex Debugging Pcre

Remove all non-numeric characters from a string; [^0-9] doesn't match as expected

Php Regex String Phone Number Sanitization

Regex to replace multiple spaces with a single space

Javascript Jquery Regex

What do 'lazy' and 'greedy' mean in the context of regular expressions?

Regex Regex Greedy Non Greedy

Why is "asdf".replace(/.*/g, "x") == "xx"?

Javascript Regex

A Regex that will never be matched by anything

Regex Dictionary Complexity Theory

Regular expression for duplicate words

Regex Duplicates Backreference Capture Group

Regular expression to return text between parenthesis

Python Regex Python 3.x

Python Regex instantly replace groups

Python Regex Regex Group

Convert PHP closing tag into comment

Php Regex Tags Comments

Regex for quoted string with escaping quotes

Regex Escaping Quotes

Javascript fuzzy search that makes sense

Javascript Regex Pattern Matching String Matching Fuzzy Search

Regular expression to match string starting with a specific word

RegEx: Smallest possible match or nongreedy match

.Net Regex Regex Greedy Non Greedy

What is a regular expression for a MAC Address?

Javascript Regexp dynamic generation from variables?

Javascript Regex Dynamic

Java regex email

Java Regex Email

C# Regex for Guid

Sublime Text regex not detecting multiline tags

Regex Tags Sublimetext

What regular expression will match valid international phone numbers?

Regex Telephony Ivr

Extract a substring from a string in Ruby using a regular expression

Ruby Regex String Substring

How do I split a string with multiple separators in JavaScript?

Javascript Regex Split

Split string based on regex

Python Regex Split

Use dynamic (variable) string as regex pattern in JavaScript

Javascript Regex String

What is a regular expression which will match a valid domain name without a subdomain?

Regex Validation Domain Name

Create RegExps on the fly using string variables

Javascript Regex

Validating IPv4 addresses with regexp

Regex Validation Ip Address Ipv4 Grep

Regular expression to match a word or its prefix

Regex Expression Word

Getting parts of a URL (Regex)

Regex Language Agnostic Url

Regular expression to match any character being repeated more than 10 times

Regular expression for a hexadecimal number?

Rails: What's a good way to validate links (URLs)?

Ruby on-Rails Ruby Regex Validation Url

What is the meaning of the 'g' flag in regular expressions?

Javascript Regex

Get string between two strings in a string

Python Regex - How to Get Positions and Values of Matches

Using C# regular expressions to remove HTML tags

C#Html Regex Parsing

Split string to equal length substrings in Java

Java Regex String Split

How to print matched regex pattern using awk?

python's re: return True if string contains regex pattern

Why does String.split need pipe delimiter to be escaped?

Java Regex String

express.js - single routing handler for multiple routes in a single line

node.js Regex Express Routing

Regex to get string between curly braces

Javascript Regex

JavaScript Regular Expression Email Validation

Javascript Regex

Regular Expression: Any character that is not a letter or number

Javascript Regex

Javascript split regex question

Javascript Regex Split

Can't escape the backslash with regex?

Is there any way to put malicious code into a regular expression?

Difference between \b and \B in regex

Why does Javascript's regex.exec() not always return the same value?

Javascript Regex

Can I use an OR in regex without capturing what's enclosed?

Regex Capture Regex Group

Regex to replace everything except numbers and a decimal point

Javascript Regex

deny direct access to a folder and file by htaccess

Php Regex Apache .Htaccess Mod Rewrite

Decimal number regular expression, where digit after decimal is optional

Extracting numbers from vectors of strings

Search and Replace with RegEx components in Atom editor

Regex Atom Editor

Javascript regex returning true.. then false.. then true.. etc

Javascript Jquery Html Ajax Regex

What does the regex \S mean in JavaScript?

Javascript Regex

How to match any non white space character except a particular one?

How to use regex in String.contains() method in Java

Java Regex String

How can I "inverse match" with regex?

Regex Inverse Match

How does this giant regex work?

Php Regex Security Cryptography

How to extract a floating number from a string

Python Regex Floating Point Data Extraction

Split string into array of character strings

Java Regex Split

Why it's not possible to use regex to parse HTML/XML: a formal explanation in layman's terms

Regex Language Agnostic

What is the difference between RegExp’s exec() function and String’s match() function?

Javascript Regex

Selecting data frame rows based on partial string match in a column

R Regex String Match Subset

A regex to match a substring that isn't followed by a certain other substring

Java Regex Clojure

Which is the correct shorthand - "regex" or "regexp"

Regex Terminology

How to match all occurrences of a regex

What is a good regular expression to match a URL?

Javascript Regex

What is the difference between re.search and re.match?

Python Regex Search Match

jQuery selector regular expressions

Javascript Jquery Regex Jquery Selectors

Regular Expression to reformat a US phone number in Javascript

Javascript Regex

Regex exactly n OR m times

How to determine if a number is a prime with regex?

Java Regex Primes

How to find indices of all occurrences of one string in another in JavaScript?

Javascript Regex String Indexof

Ruby Regexp group matching, assign variables on 1 line

Ruby Regex Pattern Matching

How to capture multiple repeated groups?

SQL Server Regular expressions in T-SQL

Sql Server Regex Tsql

JavaScript replace/regex

Javascript Regex Replace

regex for zip-code

javascript includes() case insensitive

Javascript Regex

Regular expression matching a multiline block of text

Python Regex Multiline

RegEx backreferences in IntelliJ

Java Regex Intellij Idea

How can I replace a regex substring match in Javascript?

Javascript Regex Replace Substring

How to search for occurrences of more than one space between words in a line

Regex Eclipse Replace

How to pattern match using regular expression in Scala?

Escape string for use in Javascript regex

Javascript Regex Escaping

RegEx to find two or more consecutive chars

Ruby replace string with captured regex pattern

Ruby Regex Replace

Regular expression to match a dot

Strip / trim all strings of a dataframe

Python Regex Pandas Dataframe Trim

PHP validation/regex for URL

Php Regex Url Validation

Eclipse, regular expression search and replace

Regex Eclipse Replace

Is Java RegEx case-insensitive?

Java Regex Case Sensitive

How do I use regex in a SQLite query?

Regex Sqlite Query String

What is the difference between square brackets and parentheses in a regex?

Regular expression for a string containing one word but not another

Regex Google Analytics Regex Negation

Case insensitive regex in JavaScript

Javascript Regex

How can I remove the string "\n" from within a Ruby string?

Regular expression to find URLs within a string

Regex String Url

Check if a string is html or not

Javascript Regex

How can I validate a string to only allow alphanumeric characters in it?

How can I exclude one word with grep?

Regex String Search Grep

Unicode equivalents for \w and \b in Java regular expressions?

Java Regex Unicode Character Properties

Python regex find all overlapping matches?

Python Regex Overlapping

Regex matching in a Bash if statement

Regex Bash If Statement

Replace non-numeric with empty string

C#Regex String Phone Number

Convert a string to regular expression ruby

Ruby Regex String Ruby 1.9.3

How to calculate the number of occurrence of a given character in each row of a column of strings?

Regex R Dataframe

How can I strip HTML tags from a string in ASP.NET?

C#asp.net Html Regex String

Remove non-utf8 characters from string

sed error: "invalid reference \1 on `s' command's RHS"

Regex Sed Substitution

Regex Match all characters between two strings

How to extract numbers from a string in Python?

Python Regex String Numbers

Remove HTML Tags in Javascript with Regex

Javascript Regex

How to ignore whitespace in a regular expression subject string?

Regex Whitespace

Regex for splitting a string using space when not surrounded by single or double quotes

Java Regex Split

PHP regular expressions: No ending delimiter '^' found in

Php Regex Preg Match Pcre

Extract substring using regexp in plain bash

Multi-line regex support in Vim

Changing all occurrences in a folder

Regex Linux Shell Sed

Extract a regular expression match

Split string on whitespace in Python

Python Regex String Split Whitespace

Escaping a forward slash in a regular expression

Regex Perl Escaping

Count number of matches of a regex in Javascript

Javascript Regex

How to validate an Email in PHP?

Php Regex Validation Email Validation

Regex lookahead for 'not followed by' in grep

Regex Grep Regex Lookarounds

Using Regex to generate Strings rather than match them

Regular Expressions: Search in list

How to create Gmail filter searching for text only at start of subject line?

Regex Filter Gmail Subject

List of all special characters that need to be escaped in a regex

Is it worth using Python's re.compile?

Why is sed not recognizing \t as a tab?

Check and extract a number from a String in Java

Java Regex String

Return string with first match for a regex, handling case where there is no match

Can I replace groups in Java regex?

Java Regex Replace Regex Group

java.util.regex - importance of Pattern.compile()?

Split a string at uppercase letters

Python Regex String

Do regular expressions from the re module support word boundaries (\b)?

Python Regex Word Boundaries

PHP Regex to check date is in YYYY-MM-DD format

Php Regex Date Format

Matching a Forward Slash with a regex

Javascript Regex

RegEx to parse or validate Base64 data

Regex Base64 Standards Compliance Rfc

What's the regular expression that matches a square bracket?

RegExp matching string not starting with my

Regex Regex Negation Pmd

JavaScript/regex: Remove text between parentheses

Javascript Regex

What is a non-capturing group in regular expressions?

Regex Capturing Group Regex Group

How to do a regular expression replace in MySQL?

Mysql Regex Mysql Udf

Is there a simple way to remove multiple spaces in a string?

Python Regex String

How to remove all line breaks from a string

Javascript Regex String

Insert space before capital letters

Javascript Jquery Regex String Replace

Does a dot have to be escaped in a character class (square brackets) of a regular expression?

Regex Standards Standards Compliance Square Bracket

How do I make case-insensitive queries on Mongodb?

Regex Mongodb Database

Handling backreferences to capturing groups in re.sub replacement pattern

Java regex capturing groups indexes

Why doesn't [01-12] range work as expected?

PatternSyntaxException: Illegal Repetition when using regex in Java

Java Regex Matcher

How do I replace the first instance of a string in .NET?

C#.Net Regex String Replace

.NET - How can you split a "caps" delimited string into an array?

.Net Regex Algorithm String Pascalcasing

Regular expression to match numbers with or without commas and decimals in text

How to replace all strings to numbers contained in each string in Notepad++?

Regex Notepad++

Regex match entire words only

Regex Word Boundary

How to add http:// if it doesn't exist in the URL

"Unknown modifier 'g' in..." when using preg_match in PHP?

Php Regex Preg Match Preg Match-All

Regular expression: find spaces (tabs/space), but not newlines

Regexp Java for password validation

How can I count the number of matches for a regex?

Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'<>?,./

Javascript Jquery Regex

Regex plus vs star difference?

Regular expression to remove HTML tags from a string

How to negate the whole regex?

Regex Regex Negation

Alphanumeric, dash and underscore but no spaces regular expression check JavaScript

Javascript Regex

How can I parse a CSV string with JavaScript, which contains comma in data?

Javascript Regex Split

How can I use 'Not Like' operator in MongoDB

Regex Mongodb Mongodb Query Pymongo Sql Like

How to extract numbers from a string and get an array of ints?

Java Arrays Regex String

What is a Context Free Grammar?

Regex Parsing Grammar Context Free-Grammar

How to find an element by matching exact text of the element in Capybara

Ruby Regex Capybara

How do I include negative decimal numbers in this regular expression?

Why in Java 8 split sometimes removes empty strings at start of result array?

Java Regex Split Java 8

Regular expression to extract text between square brackets

Is there a RegExp.escape function in JavaScript?

Javascript Regex

How to replace a set of tokens in a Java String?

Java Regex Templates

Is Java Regex Thread Safe?

Java Regex Multithreading

Function to return only alpha-numeric characters from string?

Python, remove all non-alphabet chars from string

Using the star sign in grep

Regex Bash Grep

Whitespace Matching Regex - Java

Java Regex Whitespace

What does the regular expression /_/g mean?

Javascript Regex

How to extract text from a string using sed?

Regular expression that matches valid IPv6 addresses

Regex Networking Ipv6

Regular expression to match EOF

Convert all first letter to upper case, rest lower for each word

C#asp.net Regex

Ruby regular expression using variable name

JavaScript regex pattern concatenate with variable

Javascript Regex

How to remove special characters from a string?

Fastest way to check if a string matches a regexp in ruby?

Ruby Regex Performance

Regex Pattern to Match, Excluding when... / Except between

Can you make just part of a regex case-insensitive?

How does one escape backslashes and forward slashes in VIM find/search?

Regular expression which matches a pattern, or is an empty string

Javascript Regex Email Validation String

Split string with dot as delimiter

Java Regex String Split

Fastest method to escape HTML tags as HTML entities?

Javascript Html Regex Performance String

Add quotation at the start and end of each line in Notepad++

Regex Text Editor Notepad++

Regular expression to check if password is "8 characters including 1 uppercase letter, 1 special character, alphanumeric characters"

How do I replace multiple spaces with a single space in C#?

How can I make my match non greedy in vim?

Regex Vim Regex Greedy

My regex is matching too much. How do I make it stop?

C++: what regex library should I use?

Regex to remove all (non numeric OR period)

How to extract string following a pattern with grep, regex or perl

Regex Perl Sed Html Parsing Text Extraction

How do I strip non alphanumeric characters from a string and keep spaces?

Ruby on-Rails Ruby Regex Ruby on-Rails-3

re.sub erroring with "Expected string or bytes-like object"

Python Regex Pandas Nltk

Return first match of Ruby regex

Ruby Regex String

How to remove numbers from a string?

Javascript Regex

Does Flask support regular expressions in its URL routing?

Python Regex Flask

javascript regular expression to not match a word

Javascript Regex String

Regex to match a digit two or four times

Using RegEx in SQL Server

Sql Server Regex Sql Server-2008 Tsql

Regex: ?: notation (Question mark and colon notation)

Recursively change file extensions in Bash

Regex Linux Bash Shell Sh

How can we match a^n b^n?

Regex Regex Lookarounds Capturing Group Nested Reference

Regex: matching up to the first occurrence of a character

Which regular expression operator means 'Don't' match this character?

Is there a difference between /\s/g and /\s+/g?

Javascript Regex

Javascript Regular Expression Remove Spaces

Javascript Regex

How to determine if a string is a valid v4 UUID?

A regex for version number parsing

Regex Versioning

Getting the text that follows after the regex match

What is the regex for "Any positive integer, excluding 0"

Is gcc 4.8 or earlier buggy about regular expressions?

C++Regex Gcc C++11 Libstdc++

How do I do a case insensitive regular expression in Go?

Regex expressions in Java, \\s vs. \\s+

Java Regex String Quantifiers

Regular expression containing one word or another

Regex Preg Match

How can I use a regex to replace upper case with lower case in Intellij IDEA?

Java Regex Intellij Idea

How do I get the name of captured groups in a C# Regex?

grep regex whitespace behavior

Does Ruby regular expression have a not match operator like "!~" in Perl?

Works in Chrome, but breaks in Safari: Invalid regular expression: invalid group specifier name /(?<=\/)([^#]+)(?=#*)/

Javascript Regex Safari

Javascript + Regex = Nothing to repeat error?

Javascript Regex Match

Get the index of a pattern in a string using regex

Java Regex String

Remove part of a string

How can I recognize an evil regex?

Regex to match only letters

Python string.replace regular expression

Python Regex Replace

Is it possible for a computer to "learn" a regular expression by user-provided examples?

Regex Artificial Intelligence Theory Automata

How do you validate a URL with a regular expression in Python?

Python Regex Google App-Engine

escaping question mark in regex javascript

Javascript Regex Literals

how to use sed, awk, or gawk to print only what is matched?

Regex Unix Sed Awk Gawk

Java regular expression OR operator

Python regex - r prefix

Python Regex String Literals Prefix

Regex to validate JSON

Javascript regular expression: remove first and last slash

Javascript Regex

Delimiter must not be alphanumeric or backslash and preg_match

Php Regex Preg Match

Number of occurrences of a character in a string

How to use RegEx in Dart?

Regex Dart Flutter

How to check that a string is a palindrome using regular expressions?

Regex Palindrome

RegEx match open tags except XHTML self-contained tags

Html Regex Xhtml

How do I match any character across multiple lines in a regular expression?

Regex Multiline

Regex pattern including all special characters

Regular expression syntax for "match nothing"?

How are nested capturing groups numbered in regular expressions?

Java .Net Regex Perl Language Agnostic

Regular Expression Match to test for a valid year

Regex String Validation String Matching

RegExp.exec() returns NULL sporadically

Javascript Regex

Replace a Regex capture group with uppercase in Javascript

Javascript Regex Replace Uppercase

grepping using the "|" alternative operator

Regex Linux Grep

Regex to match words of a certain length

How to remove symbols from a string with Python?

Python Regex String

Using sed and grep/egrep to search and replace

JavaScript - string regex backreferences

Javascript Regex Backreference

JavaScript replace \n with <br />

Javascript Regex Replace

Regex to match more than 2 white spaces but not new line

C#.Net Regex Newline Whitespace

Regex for converting CamelCase to camel_case in java

Java Regex String

What's the meaning of /gi in a regex?

Javascript Regex

Regex group capture in R with multiple capture-groups

Regex R Capture Capture Group

Split the sentences by ',' and remove surrounding spaces

Javascript Regex

What are regular expression Balancing Groups?

C#.Net Regex Balancing Groups

How to replace plain URLs with links?

Javascript Regex

Regular expression to match URLs in Java

Java Regex Regexbuddy

How can I obtain pattern string from compiled regexp pattern in python?

How to identify a given string is hex color format

How do HTML parses work if they're not using regexp?

Html Regex Parsing Html Parsing

Regex Until But Not Including

Regex Search Regex Lookarounds

Multi-line regular expressions in Visual Studio

Regex Visual Studio

Difference between LIKE and ~ in Postgres

Sql Regex Postgresql Syntax

Regex pattern inside SQL Replace function?

Sql Server Regex

Select columns based on string match - dplyr::select

How can I remove text within parentheses with a regex?

Python Regex Perl

Regular expression search replace in Sublime Text 2

Regex Replace Sublimetext2

How to match hyphens with Regular Expression?

Using regex in WHERE in Postgres

Regex Postgresql

Notepad++ incrementally replace

Regex Notepad++Sequential

Capitalize first letter of each word in a selection using Vim

Regex Vim Replace Find Capitalize

Regular expression - starting and ending with a character string

How do I verify that a string only contains letters, numbers, underscores and dashes?

Python Regex String

Validating file types by regular expression

C#asp.net .Net Regex

Checking validity of email in django/python

Python Regex Django Validation Email

Find the indexes of all regex matches?

Python Regex Indexing

regex optional word match

RegEx in Sublime Text: Match any character, including newlines?

Regex Sublimetext2

How can I extract a number from a string in JavaScript?

Javascript Regex String Numbers

How do I remove all specific characters at the end of a string in PHP?

Php Regex String

Get Filename Without Extension in Python

How do I find all YouTube video ids in a string using a regex?

Php Regex Youtube

Assert regex matches in JUnit

Java Regex Junit

Regular expression to validate username

Java Php Html Regex Perl

Remove HTML tags from a String

Java Html Regex Parsing

Case insensitive regular expression without re.compile?

Python Regex Case Sensitive Case Insensitive

Non greedy (reluctant) regex matching in sed?

Regex Sed Pcre Greedy Regex Greedy

How to extract a substring using regex

Java Regex String Text Extraction

why does my javascript regex.test() give alternating results

Javascript Regex

How to capture an arbitrary number of groups in JavaScript Regexp?

Javascript Regex Repeat Capturing Group

How do I match an entire string with a regex?

Regex: what is InCombiningDiacriticalMarks?

Java Regex Unicode

Using sed to delete all lines between two matching patterns

How to write a Ruby switch statement (case...when) with regex and backreferences?

Ruby Regex Switch Statement

How can non-ASCII characters be removed from a string?

Java Regex String Replace Char

Find the location of a character in string

Regex to match URL end-of-line or "/" character

Using RegEX To Prefix And Append In Notepad++

Regex Notepad++

What is a good regular expression for catching typos in an email address?

C#Regex Email Validation

use regular expression in if-condition in bash

RegExp in TypeScript

Javascript Regex Typescript

How do I return a string from a regex match in python?

Regex any ASCII character

Split Ruby regex over multiple lines

Ruby Regex Code Formatting

Regex: match everything but a specific pattern

Regex: ignore case sensitivity

Converting a MatchCollection to string array

How to find overlapping matches with a regexp?

Python Regex Overlapping

Regular expression to match exact number of characters?

Warning: preg_replace(): Unknown modifier 'g'

Splitting a string at every n-th character

Java Regex String Split

regexes: How to access multiple matches of a group?

How to match a line not containing a word

Escape dot in a regex range

Javascript Regex Replace

Regex: Remove lines containing "help", etc

Regex Notepad++

Java string split with "." (dot)

Java Regex String Split Indexoutofboundsexception

Check if string matches pattern

Python Regex String Matching

Matching strings with wildcard

C#Regex String Wildcard

What does ?= mean in a regular expression?

JS regex to split by line

Javascript Regex Newline

RegEx to split camelCase or TitleCase (advanced)

Java Regex Camelcasing Title Case

How do I deal with special characters like \^$.?*|+()[{ in my regex?

How to get capturing group functionality in Go regular expressions

Regex Go Capture Group

How can I write a regex which matches non greedy?

Regex Regex Greedy Non Greedy

What special characters must be escaped in regular expressions?

Python and regular expression with Unicode

Python Regex Character Properties

In Javascript, how can I perform a global replace on string with a variable inside '/' and '/g'?

Javascript Regex String

Regex for Comma delimited list

regex error - nothing to repeat

Capturing group with findall?

How to remove carriage returns and new lines in Postgresql?

Regex Postgresql

Java regex for support Unicode?

Java Regex Unicode Cjk

Multi-selection with regex (sublime text 2)

Regex Sublimetext2

Chrome dev tools: any way to exclude requests whose URL matches a regex?

Regex Google Chrome Networking Google Chrome-Devtools

Get PHP to stop replacing '.' characters in $_GET or $_POST arrays?

Php Regex Postback

Split Java String by New Line

Java Regex Split Newline

How to use grep to get anything just after `name=`?

Regex Bash Grep

Java regex to extract text between tags

Wildcards in the pattern for http.HandleFunc

Case insensitive search in Mongo

Regex Mongodb Pattern Matching Match Case Insensitive

How to input a regex in string.replace?

Python Regex String Replace

Javascript date regex DD/MM/YYYY

Javascript Regex

Remove Sub String by using Python

Python Regex String

Replace preg_replace() e modifier with preg_replace_callback

Php Regex Preg Replace Preg Replace-Callback

Replace regexp capture-group in Notepad++?

Regex Notepad++

How can test I regular expressions using multiple RE engines?

Raw Strings in Java - for regex in particular. Multiline strings

Java Regex String Rawstring

How to replace only part of the match with python re.sub

.Net regex: what is the word character \w?

Type of compiled regex object in python

Python Regex Types

What does this Django regular expression mean? `?P`

Python Regex Django Capturing Group

How long can a TLD possibly be?

Php Regex Email Validation Tld

What regular expression engine does Nginx use?

Regex to get the words after matching string

Regex Expression Regex Negation Regex Lookarounds

Remove HTML tags from string including &nbsp in C#

C#Html Regex String

WebWorker calculates slow regexp matches significantly slower (3x) - firefox only

Javascript Regex Firefox Web Worker

How to define a regex-matched string type in Typescript?

Regex Typescript Types Typing

Regular Expressions and GWT

Grep and Python

Python Regex Grep

Regular expression to match characters at beginning of line only

"Unknown escape sequence" error in Go

Regex Syntax Go

Regex to extract URLs from href attribute in HTML with Python

Python Regex Url

grep --ignore-case --only

Regex Bash Unix Grep Gnu

Regular Expression for any number greater than 0?

Design DFA accepting binary strings divisible by a number 'n'

Regex Automata Dfa

How to get the captured groups from Select-String?

Regex Powershell Select String Select Object

How do I use regular expressions in bash scripts?

Regex Bash Conditional

Regular expression that doesn't contain certain string

Regex Regex Negation

How to find a number in a string using JavaScript?

Javascript Regex

Is there a Perl shortcut to count the number of matches in a string?

Arrays Regex Perl Perl4

How to check whether a String fully matches a Regex in Scala?

What regex will match every character except comma ',' or semi-colon ';'?

Removing empty lines in Notepad++

Regex Notepad++

Regular Expression for getting everything after last slash

Combining regular expressions in Javascript

Javascript Regex

Function to check if a string is a date

Php Regex Validation Date Datetime

Is it possible to increment numbers using regex substitution?

c++11 regex slower than python

C++Python Regex Performance C++11

javascript regex for password containing at least 8 characters, 1 number, 1 upper and 1 lowercase

Javascript Jquery Regex Validation

Regex optional group

Regex Optional Regex Group

How can I remove punctuation from input text in Java?

Java Regex String Formatting

Multi-line regular expressions in Visual Studio Code

Regex Visual Studio-Code

Regular expression: match start or whitespace

How to remove numbers from string using Regex.Replace?

Regular expression negative lookahead

Regex Lookahead Negative Lookahead

Scala capture group using regex

Regex String Scala Capturing Group

preg_match in JavaScript?

Javascript Regex Mootools

What is the complexity of regular expression?

Regex Complexity Theory Big O

The recognizing power of "modern" regexes

Regex Perl Theory Context Free-Grammar Language Theory

How can I find all matches to a regular expression in Python?

Python Regex Search

How to match "any character" in regular expression?

How do I remove trailing whitespace using a regular expression?

Regex Whitespace Trailing

Rename files using regular expression in linux

Regex Terminal Rename

Looping through python regex matches

Python Regex Nested Loops

What exactly is a "raw string regex" and how can you use it?

Python Regex Python Module Rawstring

sed - Commenting a line matching a specific string AND that is not already commented out

gsub() in R is not replacing '.' (dot)

R Regex Gsub Stringr

Java Regex Replace with Capturing Group

javascript regex iso datetime

Javascript Regex Datetime Iso

How to split String with some separator but without removing that separator in Java?

Java Regex String Split

Difference between regex [A-z] and [a-zA-Z]

Regular Expression for matching parentheses

Regex match one of two words

Regex Forms Validation

Regex to split camel case

Javascript Regex

Check for special characters in string

Javascript Regex String

How to split a String into a Stream of Strings?

Java Regex Split Java Stream

bash regex with quotes?

Regex Bash Quotes

Easiest way to replace a string using a dictionary of replacements?

Does lookaround affect which languages can be matched by regular expressions?

Regex Lookbehind Lookahead Lookaround

Can you provide some examples of why it is hard to parse XML and HTML with a regex?

How do I grep for all non-ASCII characters?

Regex Unix Unicode Grep

How to get the first word in the string

Remove line breaks from start and end of string

Javascript Regex

Where can I find unit tests for regular expressions in multiple languages?

Java Php Javascript .Net Regex

How to get only process ID in specify process name in linux?

Regex Linux Shell Redhat

How do I remove carriage returns with Ruby?

Regex to detect one of several strings

In Python, how to check if a string only contains certain characters?

Python Regex Search Character

Replacing   from javascript dom text node

Javascript Regex Html Entities

Writing a parser for regular expressions

Python Regex Parsing

Regular Expression to find a string included between two characters while EXCLUDING the delimiters

How to use python regex to replace using captured group?

Python Regex Sed Replace

Why does replaceAll fail with "illegal group reference"?

sed plus sign doesn't work

Filter by regex example

Regex Google Chrome-Devtools

Javascript Regular Expressions - Replace non-numeric characters

Javascript Regex

What is the Regular Expression For "Not Whitespace and Not a hyphen"

How to remove non-alphanumeric characters?

Php Regex String

How can I validate regex?

Regex to get NUMBER only from String

How search for files using regex in linux shell script

Regex Linux Shell Search

Regex pattern to match at least 1 number and 1 character in a string

Javascript Regex Validation

MySQL SELECT LIKE or REGEXP to match multiple words in one record

Mysql Regex Select Sql Like

Java replace all square brackets in a string

Java Regex String Split

How do I split a string by whitespace and ignoring leading and trailing whitespace into an array of words using a regular expression?

Javascript Regex String Whitespace Removing Whitespace

Carets in Regular Expressions

How to check if the input string is a valid Regular expression?

Javascript Regex

How does {m}{n} ("exactly n times" twice) work?

Why does \R behave differently in regular expressions between Java 8 and Java 9?

Java Regex Unicode Java 8 Java 9

Matching exact string with JavaScript

Javascript Regex

How do you use a variable in a regular expression?

Javascript Regex

Find and extract a number from a string

C#.Net Regex String

Case insensitive Regex without using RegexOptions enumeration

Match groups in Python

Decimal or numeric values in regular expression validation

Regex Validation

Python: Elegant way to check if at least one regex in list matches a string

Python Regex List

Number of regex matches

Use Python's string.replace vs re.sub

PHP Using RegEx to get substring of a string

Php Regex Parsing Substring

Regex to remove letters, symbols except numbers

Javascript Regex Symbols

Regex for route matching in Express

Regex node.js Express

Find everything between two XML tags with RegEx

Java Php Regex Xml Perl

Why doesn't `\d` work in regular expressions in sed?

Regex Linux Awk Sed

bash, extract string before a colon

Regex String Bash Sed Substring

Fast punctuation removal with pandas

Python Regex String Pandas Numpy

Greedy vs. Reluctant vs. Possessive Qualifiers

Regex Regex Greedy

Regular expression field validation in jQuery

return only Digits 0-9 from a String

C#vb.net Regex Vbscript Code Generation

c# regex matches example

List of all characters that should be escaped before put in to RegEx?

Javascript Regex Escaping

RegEx: How can I match all numbers greater than 49?

Javascript Regex

Text processing - Python vs Perl performance

Python Regex Performance Perl Text Processing

How to use regex in XPath "contains" function

Regex Xpath Selenium Webdriver Contains

Find 'word' not followed by a certain character

matching any character including newlines in a Python regex subexpression, not globally

A regular expression to exclude a word/string

python .replace() regex

Regular expression to match DNS hostname or IP Address?

Replace newlines with literal \n

Regular Expression to match valid dates

JavaScript equivalent of PHP's preg_replace

Php Javascript Regex

C# RegEx: Ignore case... in pattern?

Regex to extract substring, returning 2 results for some reason

Javascript Regex Substring

Regular expression for checking if capital letters are found consecutively in a string

Regex Capitalize

jQuery javascript regex Replace <br> with \n

Javascript Jquery Regex

Find all elements whose id begins with a common string

Javascript Regex

How to escape comma and double quote at same time for CSV file?

Java Regex Excel Oracle Csv

Split a string by commas but ignore commas within double-quotes using Javascript

Javascript Regex

Converting user input string to regular expression

Javascript Html Regex

adding comma to each line using sublime text 2

Regex Sublimetext2

What does $1 mean in Perl?

Split camelCase word into words with php preg_match (Regular Expression)

Php Regex String Preg Match

Delete all lines starting with # or ; in Notepad++

Regex Notepad++

linux find regex

Regex Linux Bash Unix Find

Regular Expression Groups in C#

Regex to match all instances not inside quotes

Javascript Regex Escaping Quotes

How can I replace newlines/line breaks with spaces in javascript?

Javascript Regex

Compare one String with multiple values in one expression

Java Regex String

Regex to check whether a string contains only numbers

Javascript Regex

Regex for numbers only

Regex to match specific strings without a given prefix

grunt (minimatch/glob) folder exclusion

Javascript Regex node.js Glob Gruntjs

What do `?i` and `?-i` in regex mean?

regex for accepting only persian characters

C#asp.net Regex Unicode

Notepad++ Replace regex match for same text plus appending character

Regex Replace Notepad++

How to escape underscore character in PATINDEX pattern argument?

Sql Server Regex Tsql Escaping Sql Like

Using BeautifulSoup to find a HTML tag that contains certain text

Python Regex Beautifulsoup Html Content-Extraction

Remove control characters from PHP string

Php Regex String

Replace all whitespace with a line break/paragraph mark to make a word list

Regex: Use start of line/end of line signs (^ or $) in different context

replace \n and \r\n with <br /> in java

Java Regex Replaceall

Including a hyphen in a regex character bracket?

Javascript Jquery Regex Testing Validation

javascript regular expression to check for IP addresses

Javascript Regex String String Matching

How to use regex with find command?

Regex Linux Find

split string only on first instance of specified character

Javascript Jquery Regex

How to validate numeric values which may contain dots or commas?

Regex Validation Numeric

"No match Found" when using matcher's group method

Java Regex Http Headers

Regular expression matching E.164 formatted phone numbers

re.sub replace with matched content

Python Regex Python Re Python Regex

Python: How to use RegEx in an if statement?

JavaScript regular expressions and sub-matches

Javascript Regex

Regular Expressions- Match Anything

Rename files using a regex with bash

PostgreSQL Regex Word Boundaries?

Regex Postgresql Word Boundary

vim regex replace multiple consecutive spaces with only one space

JavaScript: indexOf vs. Match when Searching Strings?

Javascript Regex String Client

How to replace a string in an existing file in Perl

Regex match text between tags

Javascript Regex

Only numbers. Input number in React

Javascript Regex Reactjs

Regular Expression to collect everything after the last /

How to match Cyrillic characters with a regular expression

Regex Unicode Character Properties

Python regex matching Unicode properties

Python Regex Unicode Ucd Character Properties

Regular expression to find two strings anywhere in input

How to split but ignore separators in quoted strings, in python?

regular expression for anything but an empty string

Minimum 6 characters regex expression

Pattern matching digits does not work in egrep?

Regex Grep Character Class

Regex to remove all special characters from string?

How can I insert a tab character with sed on OS X?

Regex Macos Sed

Removing all script tags from html with JS Regular Expression

Javascript Html Regex

How to remove 'http://' from a URL in JavaScript

Javascript Regex Bookmarklet

Meaning of "=~" operator in shell script

Regex Linux Bash Shell

How to remove the extra spaces in a string?

Javascript Regex Trim

Check if string contains only letters in javascript

Javascript Regex

Is it possible to escape regex metacharacters reliably with sed

How to do CamelCase split in python

Python Regex Camelcasing

Multiple words in any order using regex

How can I store regex captures in an array in Perl?

Regex Perl Arrays

6 digits regular expression

Regular expression to match balanced parentheses

re.findall which returns a dict of named capturing groups?

Remove all non-alphanumeric characters using preg_replace

Php Regex Preg Replace

Python replace string pattern with output of function

Replace multiple letters with accents with gsub

OR condition in Regex

Difference between egrep and grep

Space or no space

Splitting on comma outside quotes

Java Regex String Split

Jquery Value match Regex

Javascript Jquery Regex Match

pandas applying regex to replace values

Python Regex Pandas

How to get all the values that contains part of a string using mongoose find?

Regex node.js Mongodb Mongodb Query Aggregation Framework

Regular Expression Arabic characters and numbers only

Regex Unicode String Matching

Why 'ABC'.replace('B', '$`') gives AAC

Javascript Regex

Extracting a string between other two strings in R

Regex R Stringr

How do you access the matched groups in a JavaScript regular expression?

Javascript Regex

How to pass a variable into regex in jQuery/Javascript

Jquery Regex Match

Regex AND operator

Regex And Operator

How to remove all non-alpha numeric characters from a string in MySQL?

Mysql Regex String Alphanumeric

remove script tag from HTML content

Php Regex Htmlpurifier

Regex that matches integers in between whitespace or start/end of string only

How to prevent a file from direct URL Access?

Regex Apache .Htaccess Mod Rewrite Hotlinking

Javascript regular expression password validation having special characters

Javascript Regex Passwords

javascript - replace dash (hyphen) with a space

Javascript Regex

Ruby Email validation with regex

Ruby Regex Validation Email

phpstorm replace array() notation to [ ] short syntax

Regex Replace Phpstorm

Regex - Does not contain certain Characters

Regex Regex Negation

Python re.sub with a flag does not replace all occurrences

What is "The Best" U.S. Currency RegEx?

How do you extract IP addresses from files using a regex in a linux shell?

Regex Linux Bash Unix Command Line

Regular Expression to split on spaces unless in quotes

Regular Expression: Allow letters, numbers, and spaces (with at least one letter or number)

Javascript Regex

Add slash to the end of every url (need rewrite rule for nginx)

Regex Nginx Rewrite

Remove all non-"word characters" from a String in Java, leaving accented characters?

Java Regex String

Find a string between 2 known values

Regex date format validation on Java

Java Regex Date Parsing

Regex Letters, Numbers, Dashes, and Underscores

Python - Locating the position of a regex match in a string?

Any character including newline - Java Regex

How does this regex find primes?

Javascript string replace with regex to strip off illegal characters

Javascript Regex String

Question marks in regular expressions

Regex Regex Greedy

Perform a non-regex search/replace in vim

Regex Vim Replace

How to type ":" ("colon") in regexp?

javascript url-safe filename-safe string

Javascript Regex String Filenames

Regular expression to search for Gadaffi

How to test valid UUID/GUID?

Javascript Regex Validation Uuid Guid

How do I make this preg_match case insensitive?

How to remove all numbers from string?

JavaScript: how to use a regular expression to remove blank lines from a string?

Javascript Regex Blank Line

preg_match(): Compilation failed: invalid range in character class at offset

Php Regex Preg Match

How to use grep()/gsub() to find exact match

R Regex Word Boundary

BeautifulSoup - search by text inside a tag

Python Regex Beautifulsoup

Regular expression for extracting tag attributes

Combine Regexp?

Using String Format to show decimal up to 2 places or simple integer

C#Regex String Formatting Number Formatting

Regular expression: zero or more occurrences of optional character /

Check for special characters (/*-+_@&$#%) in a string?

Negative lookahead Regular Expression

Javascript Regex Regex Lookarounds

In regular expressions, what is a backtracking / back referencing?

What is the idiomatic scala way of finding, if a given string contains a given substring?

Regex String Scala Substring Contains

What's wrong with my lookahead regex in GNU sed?

Regex Linux Sed Regex Lookarounds

How to match once per file in grep?

Regex Perl Shell Unix Grep

What is the use of Pattern.quote method?

Java Regex Pattern Matching

Nginx location "not equal to" regex

Regex Nginx Webserver

How to check if a string is a valid regex in Python?

Python Regex String Validation

Bash, grep between two lines with specified string

Regex Bash Grep

Regex to match Egyptian Hieroglyphics

Regex Unicode Internationalization

Number of occurrences of substring in string in Swift

How do I find and remove duplicate lines from a file using Regular Expressions?

Using explicitly numbered repetition instead of question mark, star and plus

Regex Readability Repeat

How to represent a fix number of repeats in regular expression?

Regex credit card number tests

Regex Regex Greedy

Test if characters are in a string

R Regex String R Faq

How to remove any URL within a string in Python

Python Regex Url Replace Python 2.7

Concatenate in bash the output of two commands without newline character

Regex Bash Sed Pipe Concatenation

Match whitespace but not newlines

Javascript multiple replace

Javascript Regex String Replace

Javascript - return string between square brackets

Javascript Regex String

How to copy marked text in notepad++

Regex Search Notepad++

Lua pattern matching vs. regular expressions

Regex Lua Lua Patterns

parse youtube video id using preg_match

Php Regex Parsing Youtube

Vim regex backreference

split a comma-separated string with both quoted and unquoted strings

Remove trailing character(s) from string in Javascript

Javascript Regex Parsing

Sed expression doesn't allow optional grouped string

Phone validation regex

Regex Phone Number

Using PHP Replace SPACES in URLS with %20

C# RegEx string extraction

When not to use RegexOptions.Compiled

How do I search for a pattern within a text file using Python combining regex & string/file operations and store instances of the pattern?

Python Regex File Io Text Mining String Parsing

In regex, match either the end of the string or a specific character

Regex Pattern Matching

Remove everything after last backslash

Javascript node.js Regex Typescript Node Modules

How to escape text for regular expression in Java

Java Regex Escaping

Remove all special characters, punctuation and spaces from string

Python Regex String

VSCode regex find & replace submatch math?

Regex Visual Studio-Code

What is the regex to extract all the emojis from a string?

Java Regex Utf 8 Emoji

How do you unit test regular expressions?

Regex Unit Testing Tdd

Regular Expression patterns for Tracking numbers

Regex Fedex Ups

Easiest way to extract the urls from an html page using sed or awk only

Html Regex Bash Sed Awk

Convert plain text URLs into HTML hyperlinks in PHP

Php Regex Hyperlink Preg Replace

Why isn't the regular expression's "non-capturing" group working?

How to get last Git tag matching regex criteria

Regex Git Tags Find Tagging

Notepad++ non-greedy regular expressions

Regex Notepad++Regex Greedy

How can I output only captured groups with sed?

How to handle response encoding from urllib.request.urlopen() , to avoid TypeError: can't use a string pattern on a bytes-like object

Python Regex Encoding Urllib

What's the Time Complexity of Average Regex algorithms?

Regex Algorithm Complexity Theory

replace all occurrences in a string

Javascript Regex

RegEx to match stuff between parentheses

Javascript Regex Arrays Url Url Routing

String.split() not on regular expression?

Replace only first match using preg_replace

Php Regex Preg Replace

jQuery remove special characters from string and more

Javascript Jquery Regex Replace

Use regular expression to find/replace substring in NSString

Objective C Ios Regex Ios5

Regex date validation for yyyy-mm-dd

Java Android Regex Validation Date

Recursive pattern in regex

Python Regex Recursive Regex

How do I replace specific characters idiomatically in Rust?

Why does String.replaceAll() work differently in Java 8 from Java 9?

Java Regex String Java 8 Java 9

What is the regex pattern for datetime (2008-09-01 12:35:45 )?

Php Regex Datetime

What is a regex "independent non-capturing group"?

Best way to extract MAC address from ifconfig's output?

Regex Linux Command Line-Interface

Regex pattern for numeric values

Canadian postal code validation

What's the technical reason for "lookbehind assertion MUST be fixed length" in regex?

Regex Pcre Lookbehind

Regex allow a string to only contain numbers 0 - 9 and limit length to 45

Regex String String Matching

RegEx that will match the last occurrence of dot in a string

Javascript Jquery Regex String

Can I use a regular expression in querySelectorAll?

Javascript Regex Hyperlink Selectors Api

Why do regex constructors need to be double escaped?

Javascript Regex

HTML5 form validation pattern alphanumeric with spaces?

Regex Html Validation Forms Alphanumeric

Warning: preg_replace(): Unknown modifier

Php Regex Wordpress Preg Replace

String.Replace only replaces first occurrence of matched string. How to replace all occurrences?

Javascript Regex Typescript

Is regular expression recognition of an email address hard?

Regex Email Validation Textmatching

Regex lookahead, lookbehind and atomic groups

Regex Lookaround

regex.test V.S. string.match to know if a string matches a regular expression

Javascript Regex Performance

What regex can match sequences of the same character?

Regular Expression to match cross platform newline characters

Python Regex Cross Platform Eol

How do I remove the non-numeric character from a string in java?

What does \d+ mean in regular expression terms?

How to extract a value from a string using regex and a shell?

How to get the last part of a string?

How can I use regex to get all the characters after a specific character, e.g. comma (",")

Javascript Regex

Regex, how to match multiple lines?

Ruby Regex Rubular

Need to perform Wildcard (*,?, etc) search on a string using Regex

C#.Net Regex String Wildcard

Regex for string not containing multiple specific words

replace   characters that are hidden in text

Php Regex Unicode

Get text between two rounded brackets

Javascript Regex

How can I do multiple substitutions using regex?

Python Regex String

Range out of order in character class in javascript

Javascript Regex Validation

Can I use a Regex in an XPath expression?

.Net Xml Regex Xpath

How to get domain name from URL

How to prevent Javascript injection attacks within user-generated HTML

Javascript Html Regex Parsing Code Injection

Find and replace whole words in vim

Regex Vim Editor Replace

Converting Date and Time To Unix Timestamp

Javascript Regex Unix Timestamp

Find CRLF in Notepad++

Regex Notepad++

How can I use a variable for a regex pattern without interpreting meta characters?

Python regex to match dates

Python Regex Date

Splitting a string with multiple spaces

Java Regex String Split

Check if string ends with certain pattern

Java Regex String Pattern Matching

Range of valid character for a base 64 encoding

Java Regex Base64 Apache Commons

How can I select an element by ID with jQuery using regex?

Javascript Jquery Regex

Python glob but against a list of strings rather than the filesystem

Python Regex Python 2.7 Glob

Can I test if a regex is valid in C# without throwing exception

Is there a good, online, interactive regex tutorial?

How to loop all the elements that match the regex?

Javascript Regex

String replaceAll() vs. Matcher replaceAll() (Performance differences)

Java Regex String Replaceall

Negate characters in Regular Expression

Regex Regex Negation

JavaScript - checking for any lowercase letters in a string

Javascript Regex

How do you hide .git project directories?

Regex Git Nginx

Remove new lines from string and replace with one empty space

Php Regex String

Replace all double quotes within String

regex to get the number from the end of a string

Javascript Regex

How to split a string between letters and digits (or between digits and letters)?

Java Regex String

Replacing illegal character in fileName

Java Regex Replace

How to match a whole word with a regular expression?

Replace the content of a textfile with a regex in powershell

Regex Powershell

How to regex in a MySQL query

Mysql Sql Regex Innodb

How to validate email id in angularJs using ng-pattern

Regex Angularjs Email Angularjs Directive Ng Pattern

regex match any single character (one character only)

Visual Studio Code - Removing Lines Containing criteria

Regex Visual Studio-Code

Compile regex in PHP

regex implementation to replace group with its lowercase version

Regex Replace Lowercase

Should I use \d or [0-9] to match digits in a Perl regex?

Regular Expression to match every new line character (\n) inside a <content> tag

Notepad++ Regular expression find and delete a line

Regex Notepad++

How to validate phone number using PHP?

Regex: I want this AND that AND that... in any order

Why does VIM have its own regex syntax?

Why does a RegExp with global flag give wrong results?

Javascript Regex

I want to remove double quotes from a String

Javascript Regex

Regular Expression for password validation

Unix grep regex containing 'x' but not containing 'y'

Regex Unix Grep Regex Negation

Extract info inside all parenthesis in R

How to search in an array with preg_match?

Php Regex Arrays Preg Match

Setting a minimum/maximum character count for any character using a regular expression

What does ?! mean?

While replacing using regex, How to keep a part of matched string?

Regex Notepad++

Extract string between two strings in java

Java Regex String

What is a regex to match ONLY an empty string?

RegEx - Get All Characters After Last Slash in URL

Javascript Regex

remove all line breaks (enter symbols) from the string using R

R Regex Line Breaks

How to use a variable inside a regular expression?

Python Regex Python 3.x Variables Escaping

How can I get at the matches when using preg_replace in PHP?

Php Regex Html Parsing Preg Replace

Emacs: regular expression replacing to change case

Regex Emacs Replace

Javascript: what's the point of RegExp.compile()?

Javascript Regex Compilation

Tokenizing Error: java.util.regex.PatternSyntaxException, dangling metacharacter '*'

Java Regex Split Tokenize

Regex.Match whole words

Regular expression to enforce complex passwords, matching 3 out of 4 rules

How to extract the nth word and count word occurrences in a MySQL string?

Mysql Regex Word Count

How to do sed like text replace with python?

Python Regex Linux

Matching accented characters with Javascript regexes

Javascript Regex Unicode Internationalization

Regex to match anything but two words

.Net Regex Regex Negation

How to put variable in regular expression match?

Javascript Regex

Is this C++11 regex error me or the compiler?

C++Regex Gcc C++11

Regex to check with starts with http://, https:// or ftp://

Java Regex Startswith

Why doesn't ignorecase flag (re.I) work in re.sub()

How to check, if a php string contains only english letters and digits?

regular expression for finding decimal/float numbers?

Javascript Regex Floating Point Decimal

Regex for checking if a string is strictly alphanumeric

Java Regex Alphanumeric

How to get regex matched group values

Test for numeric elements in a character string

Optional Whitespace Regex

Php Regex Preg Match Removing Whitespace

"vertical" regex matching in an ASCII "image"

Php .Net Regex Perl Pcre

Notepad++ regex group capture

Regex Notepad++

What are the differences between glob-style pattern and regular expression?

Can I do a MongoDB "starts with" query on an indexed subdocument field?

Regex Mongodb Search Indexing Full Table-Scan