RegEx search with omission

[kodepr]

hi,

i'm new to RegEx and i'm wondering:
how can i search for all .docx and .pdf files except the ones whose name ends in 4 digits preceeded by a dot?

this is what i've worked out so far:

\.(docx|pdf)$
finds all .docx and .pdf files
\.\d{4}\.(docx|pdf)$
finds all .docx and .pdf files whose name ends in 4 digits preceeded by a dot

- can these be improved/simplified?
- how can these be combined into one search in order to only find .docx and .pdf files whose name doesn't end in 4 digits preceeded by a dot?

Thanks in advance!

[white]

(?<!\.\d{4})\.(docx|pdf)$

[kodepr]

That seems to produce an error:
TRegExprW(comp):Urecognized Modifier (pos 11)

[white]

That seems to produce an error:
TRegExprW(comp):Urecognized Modifier (pos 11)

Which version of Total Commander are you using?

Or perhaps you made a typing error?

[kodepr]

Hello white,

My mistake: I was unaware of v10.00 release.
Error was in v9.51. Your solution works like a charm in v10.00.

Thank you!