[GUI Plugin] Count Pages

[theducks]

It also suggests that the problem is in, or now mismatched with a core Calibre utility

calibre/customize/zipplugin.py

[Katsunami]

Some time ago, Calibre changed something to the zip/unzip functionality. I assume Count Pages has been updated to take this into account.

If this is the latest version of Count Pages, installed in an old Calibre install, then this may be the issue.

[Firedancer885]

I'm using Ubuntu Linux 13.10 and both the latest official Calibre and all the latest plugins.

[kovidgoyal]

That error is because there is no hungarian translation for this plugin, and it can be ignored, it does not affect the functioning of the plugin.

[Firedancer885]

Thanks Kovid. But then why do I get it right at startup when I use calibre-debug -g?
And when I switch the language to en-gb, I get the same for english.

[JimmXinu]

Originally Posted by Firedancer885

Hi,

when I try to use Count Pages, I get this:

Count Page/Word Statistics
Traceback (most recent call last):
  File "site-packages/calibre/customize/zipplugin.py", line 42, in get_resources
  File "zipfile.py", line 931, in read
  File "zipfile.py", line 957, in open
  File "zipfile.py", line 905, in getinfo
KeyError: "There is no item named u'translations/hu.mo' in the archive"
...

Those are probably from my plugins. The way Kovid implemented translation for plugins, you get that message for each plugin that has translations, but not for your language.

[sengian]

A plugin modification adding translation of the plugin (general pot and french done) and an option to remove the confirmation dialog before updating.
Not extensively tested, for review and test.

Edit:
-22/01/2014: Changed the plugin zip to add a small bugfix and the correct(?) calibre version for plugin translation
-19/07/2014: Port to Qt5 (davidfor modifications included)

[Gary_M_Mugford]

Hi all,

At the risk of confirming my lack of expertise, I must admit to having a problem. I'm trying to write a search that, after using the Count plug-in, will show me the the books that have a blank value in the pgs column. I have tried date:>=2daysago and #pgs:blank and that earns me a red search box. date:>=2daysago and #pgs:empty does the same. Changing to #pgs:<1 gives me a green box, but no results. Which is wrong. Eliminating the # prefix to pgs produces almost the exact cycle, except all searches are green, with no results and wrong.

Pgs is an integer column and works perfectly fine with the count plug-in. When the Count plug-in returns an info box saying it couldn't calculate for x books, I've assumed it was because the file was in a format that can't be counted, DOC for example. And I let things go. But I found an instance of an EPUB that wasn't counted. I clicked on the book and discovered it was corrupted. I had to delete the book.

Where there is one, there are more. So, I'd like to write a search that would find problematical books so that I could investigate.

Any ideas on how I should create my search to do that?

Thanks in advance for any help, GM

[Katsunami]

Hold tight....

#pgs:false

That's it. It returns all books for which #pgs has no value. If #pgs is 0, it DOES have a value, and so the book will not be returned.

If you want to find all books that either have no value for #pgs or have a value of 0 or less (maybe due to an error), use this:

(#pgs:false OR #pgs:<=0)

And yes, this works as well to find all books for which no useful page number is defined:

(NOT #pgs:>=1)

The following finds all books by Tolkien, that have no page number, or a number of 0 or lower:

(#pgs:false OR #pgs:<=0) AND (author:Tolkien)

This also works:

(NOT #pgs:>=1) AND (author:Tolkien)

===

I like to use brackets to avoid confusion about where an operand belongs.

(NOT #pgs:>=1) AND (NOT author:Salvatore)

As I don't know Calibre's precedence rules by heart (and they are sometimes different between programming languages as well), I just avoid all confusion and always use brackets. It never fails.

[theducks]

Originally Posted by Katsunami

As I don't know Calibre's precedence rules by heart (and they are sometimes different between programming languages as well), I just avoid all confusion and always use brackets. It never fails.

Another believer in Mr. Murphy

[Katsunami]

Murphy? Something could go wrong in that post, so it did.

() are parentheses .
[] are brackets.
{} are braces.
<> are chevrons.

So in Calibre's search, use parentheses , not brackets, or it won't work.

#$%@$#%$@#% MURPHY!! DIE!11

Spoiler:

In Dutch, they are all called brackets, or "haakjes":

() : ronde haakjes (round brackets).
[] : vierkante haakjes (square brackets).
{} : gekrulde haakjes (curly brackets).
<> : gebroken haakjes (broken brackets).

[Gary_M_Mugford]

Originally Posted by Katsunami

Hold tight....

#pgs:false

That's it. It returns all books for which #pgs has no value. If #pgs is 0, it DOES have a value, and so the book will not be returned.

If you want to find all books that either have no value for #pgs or have a value of 0 or less (maybe due to an error), use this:

(#pgs:false OR #pgs:<=0)

And yes, this works as well to find all books for which no useful page number is defined:

As a programmer, I'm a big believer in bracketed clauses ... er ... snippets of code inside parenthesis.

While I could have sworn I tried false, it appears I was wrong. Indeed, using the particular bit of code, properly parenthesized, along with my date parameter has done the trick. It found the eight offending docs AND the three other files of supposedly count-worthy format that failed due to corruption of some sort in the file. As a result, the potential issues have been excised and I feel better about ignoring those informative boxes after I do a count.

Thanks for all the of the help.

[Kraftwerk]

I have just installed this plugin, a plugin which will be very useful (can't believe I didn't see it years ago!).

I want to know the number of pages of all the books I have in my library:
Can I click one button to do this or do I have to manually choose every book that I have and do it that way?

Concerning the 'Sending your Custom Count to a Kindle':
Can you explain what this will do exactly and how it will look on my Kindle 4?

Thanks

[Katsunami]

Originally Posted by Kraftwerk

I want to know the number of pages of all the books I have in my library:
Can I click one button to do this or do I have to manually choose every book that I have and do it that way?

Just select the books in your library all at once, and the plugin will count all of them.

Concerning the 'Sending your Custom Count to a Kindle':
Can you explain what this will do exactly and how it will look on my Kindle 4?

There are Amazon books that have "Real Page numbers". They have an additional file, beside the book itself, which is downloaded if you get the book directly from the site using the Kindle. This extra file contains the information needed to make the Kindle display page numbers.

Normally, if you send books to the Kindle using Calibre, the Kindle driver generates that file.

You can right-click the Device icon (with the Kindle connected), and provide the #pages column (or the name you've chosen) to the driver. Instead of calculating the page number using an algorithm, it will use the page numbers that were counted by Count Pages. This gives you the option to set custom page counts.

I use a custom page count of 2400 characters a page; I obtained the number by counting the amount of characters in a few English Del Rey paperbacks.

If you tap the top of the screen on the Kindle, it'll show the page number at the bottom; either the one provided by Amazon (on a directly downloaded book), the one generated by the driver, or the one provided by Count Pages (if you put the column name into the driver).

One caveat: to get this to work on a new Kindle or one that has had a factory reset, you must first download and open a real, unmodified Amazon book, page through it a bit, and then display the page number. This seems to be necessary to activate this function. For me, it never worked if I didn't do this first. Afterward, you can remove the book from the Kindle.

Just buy a free book that has "real page numbers", and leave it in your library.

(Note: this behaviour could be different on different Kindles, or with different firmware.)

[Kraftwerk]

Katsunami: Thank you for the detailed reply.