Hello,

In a javascript file, I have to replace all single $ character by $$.

I succeed to do that, except for some configurations like
if($('descendimg1'))
where the $ has not been replaced by $$

So now I want to replace these single left $, but not replace $ in $$. I tried
this regex
(?<!\$)\$(?!\$)
that is effective on https://regex101.com/

but not effective in my Pspad version 4.6.1 (2730) because I get an error
message "wrong regular expression.

Thanks for any help

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