Regular Expressions 101

Positive Lookbehind(?<=\?{2}Company=)

\?{2}the literal ? (63₁₀ / 77₈ / 3F₁₆) , repeated exactly 2 times

Company=the literal text Company= (case sensitive)

Group 1(.*?)

.*?any character (except for line terminators), repeated any number of times

Positive Lookahead(?=\?{2})

\?{2}the literal ? (63₁₀ / 77₈ / 3F₁₆) , repeated exactly 2 times

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?<=\?{2}Company=)(.*?)(?=\?{2})

Test String
New

??Company=My Company Name Ltd??Address= 29 Acacia Road, Nuttytown, AA1 9AA??Description=A very rampling description here... goes on for a bit and then somemore??E-mail=bert@bertswork.com??Version=Super Plus??Expiration date=01/01/2026??First name=Bert??Last name=Bloggs??

Regular Expression

Test StringNew

SubstitutionProcessing...

Test String
New

Substitution
Processing...