Hey does anybody know how to filter out logcat messages that kotlinlang #announcements

Leszek Janiszewski

06/25/2019, 12:31 PM

Hey, does anybody know how to filter out logcat messages that match regex

\d{3}\.\d{10},

? Negative lookup

(?!\d{3}\.\d{10},)

doesn’t seem to work here for some reason. The example message looks like this

2019-06-25 13:45:22.286 13313-13351/com.secretproject.alpha I/Http Response: │       247.2145208724,

Filtering out based on TAG is not a feasible solution, because I need this to log out other responses.

06/25/2019, 1:38 PM

.*

in front of the negative look ahead?

Ryan Mentley

06/25/2019, 9:57 PM

neither of those are correct, that's not how lookaheads work

(?!\d{3}\.\d{10},)

matches all strings, because you're looking for a string that contains a blank string that is followed by a number in that format

which is...everything. it'll just match a blank string somewhere in the string

Is the number at the end of the string? if so, assuming that Studio actually supports lookbehinds, you could do something like

(?<!\d{3}\.\d{10},)$

disclaimer: I didn't test that

but that would be "the end of the line, assuming it's not preceded by something matching `\d{3}\.\d{10},`"

06/25/2019, 10:03 PM

Right so you need to have

^.*?(NL)$

where NL is the negative lookahead

Ryan Mentley

06/25/2019, 10:05 PM

that would also work, but only if it's at the end of the string

06/25/2019, 10:07 PM

I reckon you dont need negative lookahead at all

Doesnt matter whether the number thing is in the matched text

Ryan Mentley

06/25/2019, 10:14 PM

honestly though your best bet is probably to do this from the command line and then use

grep -v

or something

Leszek Janiszewski

06/26/2019, 8:32 AM

thanks for the help guys!