Find and remove everything else

[Alan Kilborn]

I’m not one for guessing at people’s problem statement, but to show the general technique, let’s say that the data you want to keep is inside pairs of /.

So, some data:

After a weekend of emotional honesty at an Esalen-style retreat, Los Angeles
sophisticates /Bob/ and /Carol/ Sanders (Robert Culp and Natalie Wood) return
home determined to embrace complete openness. They share their enthusiasm
and excitement over their new-found philosophy with their more conservative
friends Ted and Alice Henderson (/Elliott/ Gould and Dyan Cannon), who remain
doubtful. Soon after, filmmaker Bob has an affair with a young production
assistant on a film shoot in San Francisco. When he gets home he admits his
liaison to Carol, describing the event as a purely physical act, not an
emotional one. To Bob's surprise, Carol is completely accepting of his
extramarital behavior. Later, Carol gleefully reveals the affair to /Ted/ and
/Alice/ as they are leaving a dinner party. Disturbed by Bob's infidelity and
Carol's candor, Alice becomes physically ill on the drive home. She and Ted
have a difficult time coping with the news in bed that night. But as time
passes they grow to accept that Bob and Carol really are fine with the
affair. Later, Ted admits to Bob that he was tempted to have an affair once,
but didn't go through with it; Bob tells Ted he should, rationalizing:
"You've got the guilt anyway. /Don't waste it/."

and a replacement,

find: (?s).*?/(?-s)(.*?)/|(?s).*\z
repl: ?1${1}\r\n
(regular expression search mode)

will yield:

Bob
Carol
Elliott
Ted
Alice
Don't waste it

This technique has its roots in THIS THREAD.

[Anthony Noriega]

@Alan-Kilborn You were correct, the asterisk/star was consumed by the formatter. The pattern is: slash dot star exampleKeyword dot star slash
Essentially I only want the keyword in between that pattern and delete everything else.

[Alan Kilborn]

@Anthony-Noriega

So I’ll show it because you apparently can’t:

/.*mykeyword*./

:-)

Please confirm that is correct.
Can you make the adjustments to what I’ve already shown as an example, to make it work?
It might be tricky…

[Alan Kilborn]

@Anthony-Noriega

Well, it really is a bit tricky. :-)

If we change my earlier text to this (which is more of what I think you have):

After a weekend of emotional honesty at an Esalen-style retreat, Los Angeles
sophisticates /.*Bob*./ and /.*Carol*./ Sanders (Robert Culp and Natalie Wood) return
home determined to embrace complete openness. They share their enthusiasm
and excitement over their new-found philosophy with their more conservative
friends Ted and Alice Henderson (/.*Elliott*./ Gould and Dyan Cannon), who remain
doubtful. Soon after, filmmaker Bob has an affair with a young production
assistant on a film shoot in San Francisco. When he gets home he admits his
liaison to Carol, describing the event as a purely physical act, not an
emotional one. To Bob's surprise, Carol is completely accepting of his
extramarital behavior. Later, Carol gleefully reveals the affair to /.*Ted*./ and
/.*Alice*./ as they are leaving a dinner party. Disturbed by Bob's infidelity and
Carol's candor, Alice becomes physically ill on the drive home. She and Ted
have a difficult time coping with the news in bed that night. But as time
passes they grow to accept that Bob and Carol really are fine with the
affair. Later, Ted admits to Bob that he was tempted to have an affair once,
but didn't go through with it; Bob tells Ted he should, rationalizing:
"You've got the guilt anyway. /.*Don't waste it*./."

If we then try this replacement:

find: (?s).*?/\Q.*\E((?-s).*?)\Q*.\E/|(?s).*\z
repl: ?1${1}\r\n
(regular expression search mode)

We’ll (again) obtain:

Bob
Carol
Elliott
Ted
Alice
Don't waste it

I used the \Q and \E constructs to avoid leaning-toothpick-syndrome, somewhat.

[Anthony Noriega]

@Alan-Kilborn said in Find and remove everything else:

?1${1}\r\n

Close, but the pattern you have is off…on the end, you hvae the star next to the keyword, and it should be the dot as my example.

/.*mykeyword*./

It should be:

/.*mykeyword.*/

[Terry R]

@Anthony-Noriega said in Find and remove everything else:

Close, but the pattern you have is off…on the end

My solution was:
Find What:(?s)\G/\.\*([^.]+)\.\*/|.+?(?=\z|/\.\*)
Replace With:?1\1\r\n
again a regular expression so search mode is regular expression.

Where (again) leaning toothpicks are all around.

Cheers
Terry

PS I should add there will likely be a last empty line, just a side effect of how the regex works. Should be easy enough to remove that afterwards.

[Anthony Noriega]

@Terry-R said in Find and remove everything else:

(?s)\G/.*([^.]+).*/|.+?(?=\z|/.*)
That fixed it, thank you all for your help.

[Alan Kilborn]

@Anthony-Noriega said in Find and remove everything else:

Close, but the pattern you have is off…

Yes, my bad on that. :-(

Too bad we couldn’t have seen this from the very beginning:

[Anthony Noriega]

@Alan-Kilborn Rookie mistake… i didnt realize the formatter was gonna make me look like a bonehead.

[Alan Kilborn]

@Anthony-Noriega said in Find and remove everything else:

look like a bonehead.

No worries.
We see that kind of thing CONSTANTLY here!
:-)
The important part is we are marking your problem SOLVED!

[guy038]

Hello, @Anthony-Noriega, @alan-kilborn, @terry-r and All,

I know, I’m a bit late :-) Here is my solution !

Assuming that the exact syntax is :

/.*keyword.*/

SEARCH (?s).+?/\.\*(.+?)\.\*/|.+

REPLACE ?1\1\r\n

Notes :

• First, the (?s) syntax means that the regex . char will match any single character, even an EOL one

• Then , in two parts of the search expression, the regex syntax .+? represents the shortest non-null range of characters till, either, the strings /.* or .*/

• Because of the regex symbols * and ., these characters must be escaped with an slash, so the form \.\*

• As the second .+? syntax is embedded between parentheses, the second range of chars ( each keyword ) is stored as group 1

• Finally , then no more keyword exists, the second alternative .+ looks for the greatest non-null range of characters till… the very end of file

• In replacement, the conditional structure ?1\1\r\n means that if the group 1 exists, it is rewritten \1, followed with a line break \r\n. When the second alternative of the search occurs, no group is involved. So nothing occurs, and the last range of text, after the last keyword, is simply deleted

Best Regards,

guy038

[Alan Kilborn]

@guy038

But really, Guy, there isn’t anything new here over what you posted HERE – with the removal of the ^ as discussed a bit later in that thread – it’s just an application of the other posting’s idea to slightly different data.

We probably should stop solving the specific problems and just point people to the already-derived general solutions.

[guy038]

Hi, @lan-kilborn,

Yes, I agree that it looks like a redundant piece of information ! In fact, I was thinking to this old post, where I proposed a general method, for isolating literal strings or expressions matched by a given regex, rewritten on different lines :

https://notepad-plus-plus.org/community/topic/12710/marked-text-manipulation/8

That’s the reason why, in my previous post, I preferred to focus on the regexes’s explanations, thinking it could be useful to the OP, anyway !

But, Alan, you’re right : my post wasn’t really needed ;-))

Cheers,

guy038

[Alan Kilborn]

@guy038

I had a further thought:

The thread I linked to earlier, and referred to in my post just above is entitled “Marked Text Manipulation”.

That relates to the current thread because a typical desire after marking some text is to copy only that text to another location, which is very similar to the topic of this “Find and remove everything else” thread.
In both cases you obtain the same effective result.

The new thought is that, at the time of the “Marked Text Manipulation” thread’s main discussion, there was no way to copy marked text without resorting to scripting. Now (7.9.1-ish) there is:

Just press the indicated button after you already have marked some text.

I will put a similar not in that other thread as well.

[guy038]

Hi, @anthony-noriega, @alan-kilborn, @terry-r and All,

Oh, yes, Alan. You’re right ! Of course, I already downloaded the portable v7.9.1 version but I’m still “stuck” with the v7.8.5 version which explains why I didn"t notice this recent enhancement !

So, thanks to @scott-sumner, we just have to use the (?-s)/\.\*\K(.+?)(?=\.\*/) regex, click on the Mark All button to get all the keywords and, then, click on the Copy Marked Text button and paste the results on a new document. Nice !

BR

guy038