Regular Expressions 101

(?m)applies the following effective flags to the remainder of the pattern: gm

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

^start of line

Negative Lookahead(?!Subtotal.*)

Subtotalthe literal text Subtotal (case sensitive)

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

Global pattern flags

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

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(?m)^(?!Subtotal.*).*

New

Subtotal test test £20.00
Value £10.00
Subtotal test 2 £4.00
Value2 £30.00

Subtotal test test £20.00
Value £10.00
Subtotal test 2 £4.00
Value2 £30.00