Find paragraph of X words containing multiple keywords ?
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Hi, @n_antiyou, @peterjones, @alan-kilborn and All
Ah… Yes, Alan, you’re right about the
¤
character ! So I repost all my previous reply, for a better understanding and to provide new versions of the regexes !
Unlike @peterjones, I will consider a continuous range of any character, even the EOL chars, using the
(?s)
modifier.Now, we can associate any common word with its leading non-word char(s), whatever they are, even line-break(s). Therefore, it can be expressed with the regex
\W+\w+
, which stands for a non-null range of non-word chars followed by a non-null range of word charsThen, in order to match a block of
N
words containing the words Word_1 and Word_2 and Word_3, at least once each, use the generic regex, below, written with the free-spacing and multi-lines mode(?x)
Remember that, in this mode :
-
A space char is not taken in account and must be coded as
\x20
or preceded by a\
character ) -
Any text, after a first
#
character, is not taken in account, too and is only comments ! -
To match a literal
#
char, use, either, the\x23
or\#
syntax !
(?xs-i) (?= ( \W+ \w+ ) {0,N-1} \W+ Word_1 ) (?= (?1) {0,N-1} \W+ Word_2 ) (?= (?1) {0,N-1} \W+ Word_3 ) (?1) {N}
So, if I take up your example, where
N = 30
words, without using the free-spacing mode :-
Open the Search dialog (
Ctrl + F
)-
SEARCH
(?s-i)(?=(\W+\w+){0,29}\W+DOG)(?=(?1){0,29}\W+CAT)(?=(?1){0,29}\W+RABBIT)(?1){30}
RegexA
-
Tick the
Wrap around
option -
Select the
Regular expression
search mode -
Click on the
Find next
button
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You may test that regex expression against the sample text, below :
Note, Alan that this regex
A
selects all the block and not each keyword, individually !word word word word word word word word word DOG word word word word word word word word word DOG word word word word word word word word word word word word word word word word word word word CAT word word word word word word word word word CAT word word word word word word word word word word word word word word word word word word word RABBIT word word word word word word word word word RABBIT word word word word word word word word word word word word word word word word word word word DOG word word word word word word word word word CAT word word word word word word word word word RABBIT DOG word word word word word word word word word CAT word word word word word word word word word RABBIT word word word word word word word word word word word word RABBIT word word word word word word word DOG word word word word word word word word word word word word word word word word CAT word RABBIT word word word word word DOG word word word word DOG word word word word CAT word word word word CAT word word word word word word word RABBIT word word word word word word word word word word word word word word word word word word word word word word word word word word word CAT DOG RABBIT DOG RABBIT CAT word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word word DOG word word word word word word word word word DOG word word word word word word word word word word word word word word word word word word word CAT word word word word word word word word word CAT word word word word word word word word word word word word word word word word word word word RABBIT word word word word word word word word word RABBIT word word word word word word word word word word
Now, if you want to match, individually, each word
DOG
,CAT
orRABBIT
, of these blocks, we need a temporary character, not existing yet, in current file, which will be located at the end of these blocksBy that means, we’ll be sure that the range, between any found occurrence of
CAT
,DOG
orRABBIT
included and this ending anchor, will not exceed30
words !I chose the
¤
character as the anchor, but any single char, not regex meta-character, would be OK, too-
Open the Replace dialog (
Ctrl + H
)-
SEARCH
(?s-i)(?=(\W+\w+){0,29}\W+DOG)(?=(?1){0,29}\W+CAT)(?=(?1){0,29}\W+RABBIT)(?1){30}\K
RegexB
-
REPLACE
¤
( the anchor ) -
Tick the
Wrap around
option -
Select the
Regular expression
search mode -
Click on the
Replace All
button ( Do not use theReplace
button )
-
You should get this output :
word word word word word word word word word DOG word word word word word word word word word DOG word word word word word word word word word word word word word word word word word word word CAT word word word word word word word word word CAT word word word word word word word word word word word word word word word word word word word RABBIT word word word word word word word word word RABBIT word word word word word word word word word word word word word word word word word word word DOG word word word word word word word word word CAT word word word word word word word word word RABBIT¤ DOG word word word word word word word word word CAT word word word word word word word word word RABBIT word word word word word word word word word¤ word word word RABBIT word word word word word word word DOG word word word word word word word word word word word word word word word word CAT word¤ RABBIT word word word word word DOG word word word word DOG word word word word CAT word word word word CAT word word word word word word word RABBIT¤ word word word word word word word word word word word word word word word word word word word word word word word word word word word CAT DOG RABBIT¤ DOG RABBIT CAT word word word word word word word word word word word word word word word word word word word word word word word word word word word¤ word word word word word word word word word word word word word word word word word word word DOG word word word word word word word word word DOG word word word word word word word word word word word word word word word word word word word CAT word word word word word word word word word CAT word word word word word word word word word word word word word word word word word word word RABBIT word word word word word word word word word RABBIT word word word word word word word word word word
Then, against this modified text, above, the search or marking of any word
DOG
,CAT
orRABBIT
, within the concerned sections, can be performed with the regex :SEARCH / MARK
(?-i)(DOG|CAT|RABBIT)(?=(\W+\w+){0,29}¤)
RegexC
Alan, this time, any keyword, inside the concerned blocks, are individually matched with the regex
C
! Note that if you would have removed the anchor¤
at the end of the look-ahead, the regex engine would have found absolutely all the occurrences of the keywordsDOG
,CAT
orRABBIT
! Not what we expect to ! Hence, the necessity of the anchor ;-))
Finally, in order to delete the temporary
¤
character, use this trivial regex :-
SEARCH
¤
-
REPLACE
Leave EMPTY
Best Regards,
guy038
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Thank you for the clarifications.
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@guy038 This is it! It works! Ahahah
I am not sure if I did correct. To be honest, I have understood about 10% of what you guys wrote. But I copied
(?s-i)(?=(\W+\w+){0,29}\W+DOG)(?=(?1){0,29}\W+CAT)(?=(?1){0,29}\W+RABBIT)(?1){30}
substituing DOG/RABBIT/CAT with 3 other keywords, and notepad++ found a portion of the text 30 words long containing all 3.
This is exactly what I was looking for.
Now, I have only 2 questions left:
1) If I want to modify the size of the portion of the text I want to find ( lets say from 30 to 50 ), would it look like this:
" (?s-i)(?=(\W+\w+){0,49}\W+guidato)(?=(?1){0,49}\W+parte)(?=(?1){0,49}\W+contributi)(?1){50} " ?
2 ) What is the expression to achieve the same result, but with 4 and 5 keywords instead of 3? ( I know I could just ask what’s the pattern to follow to add more keywords… if you want you can write it down… I am scared that I won’t understand it tho )
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Oh, and one more ( sorry )
3 ) I see that notepad, when entering the expression and hitting "find ", it brings me to the proper place where the portion of the text is, and then enlightens it in grey. Is there a way to make so it also englithens the 3 keywords INSIDE, with a different color? ( any color, even the same color for all 3 keywords )
You may look at the picture I sent above as an example. -
- Yep, that’s right.
- each one of the
(?=(\W+\w+){0,49}\W+guidato)
terms applies to one of your required words. You’ll notice right now, there are three of those terms, each with one of your required words. You just need to add more of the same terms but with the new words. - with a different color? not in the same regular expression, sorry
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Perfect, so assuming 6 keywords and 300 words as size, it should look like this:
(?s-i)(?=(\W+\w+){0,299}\W+word1)(?=(\W+\w+){0,299}\W+word2)(?=(\W+\w+){0,299}\W+word3)(?=(\W+\w+){0,299}\W+word4)(?=(\W+\w+){0,299}\W+word5)(?=(\W+\w+){0,299}\W+word6)(?1){300}
Correct?
I’m starting to think this is a bit too complex tho. Not the expression per se, since once I understand how it works I can make new ones on my own, but the process takes time. Aren’t there programs that do this kind of research with a friendly UI?
Maybe I could find people on fiverr to develop an extention of google chrome that does this kind of research, so that it would also work on a PDF without converting to txt alltogether. -
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@n_antiyou said in Find paragraph of X words containing multiple keywords ?:
Aren’t there programs that do this kind of research with a friendly UI?
Are there? I guess you’d have to go and find them then.
Maybe I could find people on fiverr to develop an extention of google chrome that does this kind of research, so that it would also work on a PDF without converting to txt alltogether.
Are there people standing by just to do this sort of thing?
That’s nice if so.
Maybe they can field some of the oddball need regex questions we get asked here. -
There might be, there’s people that do all sorts of things on fiverr it seems. XD
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Hello, @n_antiyou, @peterjones, @alan-kilborn and All
For
6
keywords, you can use that mono-line regex , below, in free-spacing mode, which enables you to place any space within this long regex for a better readability !SEARCH / MARK
(?xs-i) (?=(\W+ \w+){0,299} \W+ Word_1) (?=(?1){0,299} \W+ Word_2) (?=(?1){0,299} \W+ Word_3) (?=(?1){0,299} \W+ Word_4) (?=(?1){0,299} \W+ Word_5) (?=(?1){0,299} \W+ Word_6) (?1){300}
Now, you may use the
Search > Mark All > Using #th style
in order to highlight your keywords with a specific color. Note that, for your6th
keyword, you’ll have to cheat a bit by applying two successive highlightings to the same word ! Just try to mix two styles ;-))Best Regards,
guy038
P.S. :
Note that the syntax
(\W+ \w+)
, near the beginning of the regex, defines the group1
containing the sub-regex\W+\w+
, which is re-used, further on, thanks to the simple syntax(?1)
You’ll find some links to improve yourself in regexes here !
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Hi, @n_antiyou and All,
As I said in my previous post, you may mix some styles, from the
5
styles, available by default, to get other colors, in order to color all your keywords !Refer to this post by @Claudia-Frank, who, unfortunately, is no longer active on this forum ! Her contribution was quite important and she provided quantity of excellent
Python
scripts, too ! Let’s wish her the best and good coding moments ;-))https://community.notepad-plus-plus.org/post/27621
With the help of the
NppQCP
plugin ( Quick Color Plugin ), I built up aWord
image which recapitulates the main style combinations, with significant colors and theirRGB
coordinates
Best Regards,
guy038