help to delete some blank lines

[namx3249]

hello to everybody,

i have some documents with up to 10K lines like this one:

text-001
text-002
https://www.486905968046wdGtqQT09/74662-7z

https://www.ajjdhflfkgwdGteds/74662-7z

https://www.erlkjglegio45gio8/74662-7z

text-003
text-004
https://www.lSHM3UmJ2MW1rcEh3QT13/1982827-7z

text-005
text-006
https://www.tVbkQxTmd2a0lYMVc28193/1quehhs-rar

https://www.kfjdhdh7742222/1quehhs-rar

https://www.949iwjdjnnssbabqq/1quehhs-rar

i need to delete blank empty lines only on https lines, like this:

text-001
text-002
https://www.486905968046wdGtqQT09/74662-7z
https://www.ajjdhflfkgwdGteds/74662-7z
https://www.erlkjglegio45gio8/74662-7z

text-003
text-004
https://www.lSHM3UmJ2MW1rcEh3QT13/1982827-7z

text-005
text-006
https://www.tVbkQxTmd2a0lYMVc28193/1quehhs-rar
https://www.kfjdhdh7742222/1quehhs-rar
https://www.949iwjdjnnssbabqq/1quehhs-rar

how to?
or another solution: delete all blank lines, but then add new blank lines only between https link and text-00n

[guy038]

Hello, @namx3249 and All,

As usual, not difficult with the appropriate regex expression

So, starting with your INPUT text, where I added a leading TAB char before the first part of your text :

	text-001
	text-002
	https://www.486905968046wdGtqQT09/74662-7z

	https://www.ajjdhflfkgwdGteds/74662-7z

	https://www.erlkjglegio45gio8/74662-7z

text-003
text-004
https://www.lSHM3UmJ2MW1rcEh3QT13/1982827-7z

text-005
text-006
https://www.tVbkQxTmd2a0lYMVc28193/1quehhs-rar

https://www.kfjdhdh7742222/1quehhs-rar

https://www.949iwjdjnnssbabqq/1quehhs-rar

the following regex S/R :

SEARCH (?-s)^(.+\R)\R+(?=[\t\x20]*http)

REPLACE \1

Will produce your expected OUTPUT text :

	text-001
	text-002
	https://www.486905968046wdGtqQT09/74662-7z
	https://www.ajjdhflfkgwdGteds/74662-7z
	https://www.erlkjglegio45gio8/74662-7z

text-003
text-004
https://www.lSHM3UmJ2MW1rcEh3QT13/1982827-7z

text-005
text-006
https://www.tVbkQxTmd2a0lYMVc28193/1quehhs-rar
https://www.kfjdhdh7742222/1quehhs-rar
https://www.949iwjdjnnssbabqq/1quehhs-rar

Best Regards,

guy038

[namx3249]

oh guy038, as usual your regex work fine!
thanks you so much. you saved my day

only don’t understand why have you add a leading TAB on first block … it work fine also without this …

[guy038]

Hi, @namx3249 and All,

Ah…, I simply added a leading TAB char before each line of the first part to show you that the regex S/R could also handle this case !

But, If you’re sure that leading blank chars won’t appear in your file, you can simplify the regex S/R as below, to get a similar OUTPUT :

SEARCH (?-s)^(.+\R)\R+(?=http)

REPLACE \1

BR

guy038