regex Examples and Free Source Code

RegExp for whitespaces without tabs...

java regex

Split String At Every Non-Letter/Non-Number Character...

c#regex string

PowerShell code returning correct value. However, looking to enhance program by capturing the ID tag...

json regex powershell object-graph

Extended Regular Expression: Find a Word That is Not Part of Another Word...

regex unix grep

Separting alphanumeric string using tidyr separate wider regex...

r regex string dataframe tidyr

How to split string to substrings wrapped by brackets?...

regex string kotlin split

Using Recursive Regexes in Raku: how to limit recursion-levels?...

regex recursion pattern-matching raku

How to match "C", "C++" or "C#"?...

regex python-3.12

Removing contiguous duplicate lines in vi without sorting...

regex vim vi duplicate-data

Remove part of a string in python with regex...

python regex

Regular expression which allows numbers, spaces, plus sign, hyphen and brackets...

javascript jquery regex jquery-plugins

In Perl, how can I match a number N and the next N characters?...

regex perl

A Regex that will never be matched by anything...

regex

Finding a DOI in a document or page...

regex doi

What is a Context Free Grammar?...

regex parsing grammar context-free-grammar

How can I exclude a single character from a list only when followed by certain other characters?...

regex regex-lookarounds

Django re_path to catch all URLs except /admin/ not working properly...

django regex django-urls

Tricky Reverse Regex Python 3.11...

python regex reverse

What does '\K' mean in this regex?...

regex bash grep

Lookbehind Assertion is causing a "Invalid group" error...

javascript jquery regex match lookbehind

Optional (opening) parenthesis but closing parenthesis should then be mandatory...

javascript php regex

regex for time validation...

php regex time pcre

Extract version-specific upgrade notice from readme text...

php regex text-extraction

PHP str_replace() and preg_replace() not working with HTML...

php regex preg-replace

Zip code validation to exclude some formats...

regex

can I use regex to replace spaces with underscores only in specific capture strings?...

regex replace anki

RegEx capture everything before keyword but after the opening bracket...

regex

Parsing Regex in Lua returns nil...

regex lua

regex replace all dots exept last one doesn't work...

regex bash sed

Understanding and Fixing the regex?...

python regex