Find line that starts with expression negation

Question

Find line that starts with expression negation

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#1 by (4 votes)

4

I have a text file with many lines. Is it possible for me to find the first line that does not match regex ? Example, I want to make a regex that shows me the first line that does not start with BOLO

BOLO
BOLO
CHOCOLATE

I'm using sublime , meaning my regex has to find the word CHOCOLATE. Remembering that my regex needs to be on top of the word CAUSE because I do not know which line comes after.

regex sublime-text

asked by anonymous 24.08.2017 / 15:32

1 answer

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score 4 · Accepted Answer

Combine the anchor ( ^ ) with the negative lookhead ( ?! ) this will identify lines that do not start with BOLO

^(?!BOLO)

Text:

BOLO
BOLO
CHOCOLATE
RECEITAS BOLO

This example matches the last two lines.

See working at REGEX101