regex Examples and Free Source Code

What is the ultimate postal code and zip regex?...

regex zipcode postal-code

Javascript Regular Expression "Single Space Character"...

javascript regex

Understand when to use ^ and $ for RegEx Patterns in C#...

c#regex

RE2 or Go Regex to match all ccTLD emails except for .us or .co...

regex go re2

Regex expression to find end of multiline YAML codeblock...

regex regex-lookarounds

How to capture multiple regex matches, from a single line, into the $matches magic variable in Power...

regex powershell powershell-2.0

Pass regex options to PowerShell [regex] type...

regex powershell case-insensitive

Change first character on a line with upper case in Perl...

regex perl

How to make only the first character in each word uppercase in Perl...

regex string perl

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

regex perl replace

How can I split string by comma and/or new line and/or whitespace...

javascript regex

Regular expression to match alpha-numeric characters not working in Python...

python regex

sed - how to do regex groups using sed...

regex linux sed

How to match "any character" in regular expression?...

regex

regex for replacing with tab...

regex notepad++

Regex pattern matching using @Pattern annotation in Spring Boot...

java regex spring spring-boot

How can I extract css file using Php regular expression...

php regex

Regex matching with multiple negative look behind conditions...

regex regex-lookarounds regex-negation

How to find string that occurs between 3rd and 4th instances of a character...

regex powershell

What does (?i) mean?...

php regex preg-match

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

c#.net regex

Regex parameters in a function...

javascript regex photoshop-script ecmascript-3

syntax for saving regular expression as an object attribute to process in ruby...

ruby-on-rails regex ruby

JavaScript to replace variable in a string...

javascript regex

Apply multiple regexp from dict on a field and get result for each...

regex ansible yaml jinja2

PowerShell Regex not giving the results I expect not sure why...

regex powershell get-winevent

301 Redirect to replace all spaces to hyphens...

regex apache .htaccess http-redirect mod-rewrite

R / stringr: split string, but keep the delimiters in the output...

r regex stringr

How to replace word with special character from string in java?...

java regex string replace

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

python regex word-boundaries