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Old 05-17-2024, 05:17 PM   #1
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Find Repeated/Duplicate Text

Is there a way to find (and possibly highlight) repeated word groups in ePubs?
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Old 05-17-2024, 06:38 PM   #2
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try
(\w+)\s\1
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Old 05-17-2024, 07:26 PM   #3
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try
(\w+)\s\1
No go. It only finds adjacent words of which the first one ends in and the second one starts with one or more identical letters, e.g. go on or he headed back...
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Old 05-17-2024, 07:58 PM   #4
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Quote:
Originally Posted by mikapanja View Post
No go. It only finds adjacent words of which the first one ends in and the second one starts with one or more identical letters, e.g. go on or he headed back...
a space after should stop that. I added a starting space required as well (this won't find if the first and second word are the match
Code:
\s(\w+)\s\1\s
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Old 05-17-2024, 08:19 PM   #5
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Originally Posted by theducks View Post
a space after should stop that. I added a starting space required as well (this won't find if the first and second word are the match
Code:
\s(\w+)\s\1\s
This one finds identical words adjacent to one another, e.g. my my. I'd like it to find non-adjacent repeated word groups, i.e scattered throughout the text.

Sorry if I was unclear.
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Old 05-17-2024, 08:37 PM   #6
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@mikapanja - Do you want to find and highlight all occurrences of let's say: "cathode ray tube" ?

BR

Last edited by BetterRed; 05-17-2024 at 08:52 PM.
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Old 05-17-2024, 08:42 PM   #7
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Actually, Spell check can do that.
remove the tick for only misspelled words
Double click on the word (left side),
repeat it (the d-click) jumps to the next occurrence
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Old 05-17-2024, 09:38 PM   #8
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Quote:
Originally Posted by BetterRed View Post
@mikapanja - Do you want to find and highlight all occurrences of let's say: "cathode ray tube" ?

BR
Exactly, BR, word groups, not words. Hence the spell check, as suggested by theducks, won't work.
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Old 05-17-2024, 09:39 PM   #9
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Sigil's PageEdit might be a better starting point, it's a lightweight wysiwyg content editor. I'll have a look-see

BR

Last edited by BetterRed; 05-17-2024 at 09:45 PM.
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Old 05-17-2024, 10:12 PM   #10
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Quote:
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Sigil's PageEdit might be a better starting point, it's a lightweight wysiwyg content editor. I'll have a look-see
Marginal, probably not worth bothering with.

But, let's say you could highlight all the "cathode ray tubes", what would you do next?

BR
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Old 05-17-2024, 10:48 PM   #11
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There's no such functionality. You would need to write a plugin for it.
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Old 05-17-2024, 11:02 PM   #12
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Quote:
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But, let's say you could highlight all the "cathode ray tubes", what would you do next?
Even finding the group would be more than enough.

It would also be useful to be able to define the group size (say, 3-5 words, or 3 words and larger).

Quote:
Originally Posted by kovidgoyal View Post
There's no such functionality. You would need to write a plugin for it.
I was hoping one of our resident experts could come up with a relevant regex or function. I know it's doable in Word via macro, albeit on a sentence level.
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Old 05-18-2024, 12:12 AM   #13
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Originally Posted by mikapanja View Post
I know it's doable in Word via macro, albeit on a sentence level.
No need for macros in Word, standard Ctrl+H Find & Replace on entire document or selection e.g. paragraph, page, section etc, viz:

Click image for larger version

Name:	Screenshot 2024-05-18 134952.jpg
Views:	36
Size:	753.1 KB
ID:	208356

And when you've done, set Highlight to None and repeat F&R.

BR
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Old 05-18-2024, 07:50 AM   #14
mikapanja
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mikapanja can solve quadratic equations while standing on his or her head reciting poetry in iambic pentametermikapanja can solve quadratic equations while standing on his or her head reciting poetry in iambic pentametermikapanja can solve quadratic equations while standing on his or her head reciting poetry in iambic pentametermikapanja can solve quadratic equations while standing on his or her head reciting poetry in iambic pentametermikapanja can solve quadratic equations while standing on his or her head reciting poetry in iambic pentametermikapanja can solve quadratic equations while standing on his or her head reciting poetry in iambic pentametermikapanja can solve quadratic equations while standing on his or her head reciting poetry in iambic pentametermikapanja can solve quadratic equations while standing on his or her head reciting poetry in iambic pentametermikapanja can solve quadratic equations while standing on his or her head reciting poetry in iambic pentametermikapanja can solve quadratic equations while standing on his or her head reciting poetry in iambic pentametermikapanja can solve quadratic equations while standing on his or her head reciting poetry in iambic pentameter
 
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Quote:
Originally Posted by BetterRed View Post
No need for macros in Word, standard Ctrl+H Find & Replace on entire document or selection e.g. paragraph, page, section etc, viz:

Attachment 208356

And when you've done, set Highlight to None and repeat F&R.
That works in case you know what you are looking for. But what if you don't, which was my original thought? E.g. if you want to know if any 5-word group is repeated in the text.
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Old 05-18-2024, 08:27 AM   #15
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Quote:
Originally Posted by mikapanja View Post
That works in case you know what you are looking for. But what if you don't, which was my original thought? E.g. if you want to know if any 5-word group is repeated in the text.
For those kind of searches you'll need to use a concordance tool. For example, Laurence Anthony's AntConc (freeware).
  • Unzip the epub file.
  • If the folder contains .xhtml files change their file extensions to .html.
  • Open AntConc, select Open file(s) as 'Quick Corpus', select .html as the file type and then select the extracted .html files.
  • Click the N-Gram tab, select the desired number of words and click Start.
I've attached a sample screenshot of the output.
Attached Thumbnails
Click image for larger version

Name:	ngrams.png
Views:	27
Size:	31.8 KB
ID:	208363  
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