search - Regex Notepad++ Searching for certain instances -

search - Regex Notepad++ Searching for certain instances -

i have big grouping of text files (.xml) i'm looking search , find.

due conversion, letters (i , l) dropped after letter f.

data contains instances of

"f re" fire "diff cult" hard "ref ector" reflector

and many more cases.

where dropped letter became space.

i want search

f\s

but want eliminate pointing out whole words off, of, , if.

\soff\s \sof\s \sif\s

i have come series, i'm not sure how string regex code together.

(?<!\so)f\s (?<!\si)f\s (?<!\sof)f\s

any help offered appreciated, give thanks you

how about:

(?<!i|o)(?<!of)f\s

this match f\s if isn't preceded i or o or of.

i'm using 2 lookbehind because npp doesn't take variable length lokkbehind.

it doesn't match off ce (office).

regex search notepad++ lookbehind