delete part of text

pinuzzu99

in reference to my old thread here:
https://community.notepad-plus-plus.org/topic/18793/multiple-txt-to-one-new-txt
at post #16, i have try this string on my other new txt but this string delete all!
i have txt like this:

.: Allopa Detaruso :.
=================================
Lukis: pampetet.marertey@yeto.com:cldfgdfgzo14430
Pra Stimona: Fru
=================================
 
moka:/my-wahsjras.zuk                               379912     2019-08-07T02:52:11+02:00
.: Allopa Detaruso :.
=================================
Lukis: capdfgdfnn44rz@gmail.com:1ertrete434
Pra Stimona: Fru
=================================
 
moka:/crypto.zip                                   380547     2019-08-07T02:50:07+02:00
.: Allopa Detaruso :.
=================================
Lukis: jadfgdf2@gail.com:mfdgfhg11444357
Pra Stimona: Fru
=================================
 
moka:/wahsjras.zuk                                  379807     2019-08-07T02:58:33+02:00
.: Allopa Detaruso :.
=================================
Lukis: lfdhreyan@hofail.com:pipoqfdhghnha
Pra Stimona: Fru
=================================
 
moka:/RECOVER.zip                                  380708     2019-08-07T02:59:03+02:00
.: Allopa Detaruso :.
=================================
Lukis: lely-u-kildjss@hotkslail.fr:kedflgdfeove
Pra Stimona: Fru
=================================
 
moka:/[DVD] kalals ''quarter'' in TryrtyOME (Disc 1).mp4 5160256900 2015-11-09T23:17:16+01:00
moka:/[DVD] mahxgc come Here (TdfhtrrtyrtyM) - Encore.mp4 832324875  2015-11-09T23:20:25+01:00
moka:/[DVD] mmahshs come Here (YdfgfdgdfgdfgM).mp4 3582747293 2015-11-09T23:50:36+01:00
moka:/[DVD] oakshdhf come Hfgbere (mashdjskskal) - MC.mp4 902267874  2015-11-09T23:52:03+01:00
moka:/wahsjras.zuk                                  379957     2019-08-07T03:40:13+02:00
.: Allopa Detaruso :.
=================================
Lukis: ddfgdfgi@gail.com:jinyujyukyk304525
Pra Stimona: Fru
=================================
 
moka:/[deanzel] Tenchi Muyo! Ryo-Ohki/             0          2014-10-26T11:56:44+01:00
moka:/[deanzel] Ndfjhgjtyjykhgi, Imoghkghkgyta Iru!/ 0          2014-12-13T21:08:15+01:00
moka:/[deanzel] Psycho-Pass [BD 1080p 10bit Dual Audio FLAC-AC3]/ 0          2014-12-23T19:08:45+01:00
moka:/[deanzel] Steins;Gate/                       0          2015-01-31T06:17:50+01:00
moka:/[deanzel] Space Dandy - Seagfrrrr [BD 1080p Hi10p Dual Audio FLAC-AC3]/ 0          2015-02-02T20:09:36+01:00
.: Allopa Detaruso :.
=================================
Lukis: pytryrta.martyrly@yaplgo.com:crtytrghmgzo140
Pra Stimona: Fru
=================================
 
moka:/my-wahsjras.zuk                               379912     2019-08-07T02:52:11+02:00
.: Allopa Detaruso :.
=================================
Lukis: caznxjsz@gail.com:11238490324 
Pra Stimona: Fru
=================================
 
moka:/crypto.zip                                   380547     2019-08-07T02:50:07+02:00
.: Allopa Detaruso :.
=================================
Lukis: jvfvfdv2@gail.com:mdvdfv4443g117
Pra Stimona: Fru
=================================
 
moka:/wahsjras.zuk                                  379807     2019-08-07T02:58:33+02:00
.: Allopa Detaruso :.
=================================
Lukis: ldfvdfvd333n@hotmail.com:pdfdggjjytha
Pra Stimona: Fru
=================================
 
moka:/RECOVER.zip                                  380708     2019-08-07T02:59:03+02:00
.: Allopa Detaruso :.
=================================
Lukis: lfg55-u-kfhsksss@hotail.fw:kmsjdf773ove
Pra Stimona: Fru
=================================
 
moka:/[Dggf] 5675676575675 ''quarter'' intyjtjtj (Disc 1).mp4 5160256900 2015-11-09T23:17:16+01:00
moka:/[Dss33] ththytjhytbnb666575 ytjtyjyjngfnvgntry5656y5M) - fhfjjtmp4 832324875  2015-11-09T23:20:25+01:00
moka:/wahsjras.zuk                                  379957     2019-08-07T03:40:13+02:00
.: Allopa Detaruso :.
=================================
Lukis: deeferferi@gmail.com:jeferook343543525
Pra Stimona: Fru
=================================
 
moka:/[deanzel] Te576uytjgkuyiyui78/             0          2014-10-26T11:56:44+01:00

.: Allopa Detaruso :.
=================================
Lukis: pegfdgdgahsj_aryly@yahoo.com:cosjmcneyo109
Pra Stimona: Fru
=================================

with reg-ex (?-s)^(?!\h*[\w.\x20]+@).\R?|^.?\x20+
all text is deleted.
how to delete all excluding mail:password?
(in line Lukis: have mail:passw)
tanxs to everybody for your attention.

guy038

Hello, @pinuzzu99 and All,

In fact, the repeated character class of my regex : [\w.\x20]+, contains any character, which may appear before the @ character of the e-mail address

So, in order that, for instance, the line :

Lukis: pampetet.marertey@yeto.com:cldfgdfgzo14430

is considered as a line containing a valid e-mail address and, subsequently will not be deleted, you must add the colon character ( : ) to the character class

In the same way, if you want that the line :

Lukis: lfg55-u-kfhsksss@hotail.fw:kmsjdf773ove

is considered as a line containing a valid e-mail address and, subsequently will not be deleted, you must
add the dash character ( - ) to the character class, giving the resulting regex S/R :

SEARCH (?-s)^(?!\h*[\w.:\x20-]+@).*\R?|^.*?\x20+

REPLACE Leave EMPTY

Now, if you suppose than an e-mail address can be preceded with any standard character, but @, simplify the search regex to the syntax, below :

(?-s)^(?!\h*.+?@).*\R?|^.*?\x20+

After running one or another regex, you should get, from your example, the expected text :

pampetet.marertey@yeto.com:cldfgdfgzo14430
capdfgdfnn44rz@gmail.com:1ertrete434
jadfgdf2@gail.com:mfdgfhg11444357
lfdhreyan@hofail.com:pipoqfdhghnha
lely-u-kildjss@hotkslail.fr:kedflgdfeove
ddfgdfgi@gail.com:jinyujyukyk304525
pytryrta.martyrly@yaplgo.com:crtytrghmgzo140
jvfvfdv2@gail.com:mdvdfv4443g117
ldfvdfvd333n@hotmail.com:pdfdggjjytha
lfg55-u-kfhsksss@hotail.fw:kmsjdf773ove
deeferferi@gmail.com:jeferook343543525
pegfdgdgahsj_aryly@yahoo.com:cosjmcneyo109

Best Regards,

guy038

pinuzzu99

Thank you very much for your reply, guy038.
your string wok fine!

anyway i didn’t quite understand the difference between:
(?-s)^(?!\h*[\w.:\x20-]+@).\R?|^.?\x20+
and
(?-s)^(?!\h*.+?@).\R?|^.?\x20+

also first string seems to work well for my purpose…
what is the difference between the two strings?

guy038

@pinuzzu99 and All,

Well. Let’s imagine that you have a line, like below, with a lot of non-alphabetic symbols, which come before the @ symbol :

Lu&kis: lf#g5%%5-u-kfhsksss@hotail.fw:kmsjdf773ove

Then, in order that the e-mail address are considered as valid ( so that this line will not be deleted entirely ), my first regex syntax should be :

(?-s)^(?!\h*[\w.:\x20&#%-]+@).*\R?|^.*?\x20+

Simply because the line above has 6 non-alphabetic characters : & # % - . and space ( \x20 ), before the @ symbol. Note that I put the - char at the end of the character class [....-], because it has a special meaning if located at any other position of that structure !

Now, if you use the second regex syntax :

(?-s)^(?!\h*.+?@).*\R?|^.*?\x20+

This time, we don’t have to bother about possible non-alphabetic characters. Indeed, the part .+? (instead of [\w.:\x20&#%-]+) will select the shortest non-null range of any standard character, till the @ symbol !

Follow this link to enter the magic world or regexes !

https://community.notepad-plus-plus.org/topic/15765/faq-desk-where-to-find-regex-documentation

Cheers,

guy038

pinuzzu99

tanks for your wonderful reply.
and i have already see your link about reg-ex documentation…
but there is always little time to do what you want to do!