try

^\s*?$



> On Jan 12, 2017, at 7:38 AM, Sam Hathaway <[email protected]> wrote:
> 
> Doesn't with for me either, with latest bbedit. I'm not in front of my 
> computer now, but iirc bbedit would select an empty line, including that 
> line's linefeed, and the following line, consisting of 4 spaces, and that 
> lines linefeed.
> 
> That is, in the document represented by this C string: "one\n\n    \n\ntwo\n"
> 
> It would match chars 5 through 10 (the first empty line AND the line with 4 
> spaces) in one fell swoop, but would not match char 11 (the 2nd empty line).
> 
> My uninformed guess is that bbedit is trying to be smart about whether it's 
> matching in single line or multiline mode, and doesn't always get it right. 
> (Personally, I'd like for \n to NEVER be a member of \s. You can always write 
> [\s\n] if that's what you want.)
> -sam
> 
> On January 11, 2017 8:59:38 PM EST, Mike Pullen <[email protected]> wrote:
>> ^\s*$ does not work for me in BBEdit.  BBEdit does not find the empty
>> lines 
>> that proceeds the line containing "four" or the line containing "six"
>> in my 
>> test file.
>> 
>> This perl one-liner works: perl -pe 's/^\s*$//' test.txt.  I think the
>> same 
>> regex should work in BBEdit but doesn't on my system.  I'm using BBEdit
>> 
>> 11.6.4 and had the same results with 11.6.3.
>> 
>> Could someone try the regex in BBEdit and let me know if it works for
>> them?
>> 
>> 
>>> 
> 
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Dmitry Markman

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