Regular expression matching LINE but NOT a single special word

Question

I have a regex matching a line having the word "Mq\w+GetContext"…

^.*Mq\w+GetContext.*$

example: MqBufferGetContext, MqDumpGetContext, MqErrorGetContext etc

and NOW my problem… I dont't want to have the line matching the word…

MqErrorGetContext

try to use

^.*Mq(?!Error)GetContext.*$

does not work.

Answer 1

You might use a negative lookahead (?! if it is supported to assert that MqErrorGetContext is not present.

You could use a word boundary \b for it not be part of a longer match.

^(?!.*\bMqErrorGetContext\b).*Mq\w+GetContext.*$

Answer 2

Almost there, try it like this:

^.*Mq(?!Error)\w+GetContext.*$

When you use the negative lookahead, the sequence to look at must be ahead of it.

Demo