regex101: Split Http(s) Response

Non-Capturing Group(?:[\n\r\w\W]+)

Character Class[\n\r\w\W]+

+matches at least one character from the set below:

\na line-feed (newline) character (ASCII 10)

\ra carriage return (ASCII 13)

\wany word character

\Wany non-word character

Character Class[\n\r]{2}

{2}matches exactly 2 characters from the set below:

\na line-feed (newline) character (ASCII 10)

\ra carriage return (ASCII 13)

Global pattern flags

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

g modifier: global. Finds all matches instead of stopping after the first

Search reference

Regular Expression

(?:[\n\r\w\W]+)[\n\r]{2}

New

Content-Type: text/html;charset=utf-8
Content-Language: en
Content-Length: 435
Date: Sat, 03 Dec 2022 06:55:53 GMT
Connection: close

<!doctype html><html lang="en"><head><title>HTTP Status 400 – Bad Request</title><style type="text/css">body {font-family:Tahoma,Arial,sans-serif;} h1, h2, h3, b {color:white;background-color:#525D76;} h1 {font-size:22px;} h2 {font-
size:16px;} h3 {font-size:14px;} p {font-size:12px;} a {color:black;} .line {height:1px;background-color:#525D76;border:none;}</style></head><body><h1>HTTP Status 400 – Bad Request</h1></body></html>

Regular Expressions 101

Regular Expression

Extraction