Variable Series Index Field

[Gelina]

Currently I'm using two different templates when I Save Books to Disk. The only difference between the two is that I use {series_index:0>2s||. } if the series has all whole numbers for the index # and {series_index:0>4.1f||. } if the series has partial numbers for the index #.

What I would like is for an automatic way to do this without having to manual adjust the template each time.

Examples:

If the series goes

SomeSeries 1
SomeSeries 2
SomeSeries 3

I want the index to be:

01.
02.
03.

However, if the series goes

SomeSeries 1
SomeSeries 1.5
SomeSeries 2
SomeSeries 3

I want the index to be:

01.0.
01.5.
02.0
03.0.

Is this possible?

[theducks]

I use

series_index:0>5.2s

[chaley]

Originally Posted by Gelina

Is this possible?

No. To do what you ask, a template would need information about other books being "processed", something that the template system does not support.

You can, of course, do it with a plugin that preprocesses the selection to determine the necessary width of the output field.

[Gelina]

Originally Posted by theducks

I use

series_index:0>5.2s

That doesn't come anywhere close to what I'm looking for.

Is it possible to set up a regex that only adds the decimal point if it's there without doing a plugin?

So SomeSeries 1, SomeSeries 2, SomeSeries 3 would still do exactly the same thing, but:

SomeSeries 1
SomeSeries 1.5
SomeSeries 2
SomeSeries 3

would go:

01.
01.5.
02.
03.

[chaley]

Use a general program mode template.

The following template shows one way to do variable formatting.

program:
	si = field('series_index');
	index_val = test(
			field('series'),
			contains(si, '\.', 
				format_number(si, '{0:04.1f}'), 
				format_number(si, '{0:02d}')), 
			'');
	finish_formatting(index_val, '', '', '.')

You will of course need to add the rest of the template to the result value, probably using the template function.

An alternate way to do it would be to generate the template string you want depending on the value of series and series_index, then return the result of evaluating that template. Which is easier for you depends on how you think.

[Gelina]

I apologize for being an idiot - but I can't get that to work. I went into "Template Functions" and put the function name as my_seriesindex and your code as the program code, but I keep getting a compile error.

NameError: name 'field' is not defined


The entire template I've been using is:

{#booktype}/{author_sort:re([.]$,)}/{series}/{series_index:0>2s||. }{title} - {authors}

or

{#booktype}/{author_sort:re([.]$,)}/{series}/{series_index:0>4.1f||. }{title} - {authors}

If anyone has the patience to explain step by step what I need to do, I would really appreciate it. Thank you.

[chaley]

Originally Posted by Gelina

I apologize for being an idiot - but I can't get that to work. I went into "Template Functions" and put the function name as my_seriesindex and your code as the program code, but I keep getting a compile error.

A general program mode template is a template, not a function. It is a complete template written in the template programming language. It must be the only thing in the template box.

The entire template I've been using is:

{#booktype}/{author_sort:re([.]$,)}/{series}/{series_index:0>2s||. }{title} - {authors}

or

{#booktype}/{author_sort:re([.]$,)}/{series}/{series_index:0>4.1f||. }{title} - {authors}

You are currently using single function mode templates. They are not the same as template program mode templates or general program mode templates.

The following GPM template should do what you want. It is not a particularly elegant solution, but it should be understandable.

program:
	t_dot =   '{#booktype}/{author_sort:re([.]$,)}/{series}/{series_index:0>4.1f||. }{title} - {authors}';
	t_nodot = '{#booktype}/{author_sort:re([.]$,)}/{series}/{series_index:0>2s||. }{title} - {authors}';
	t_noseries = t_nodot;
	template = test(field('series'),
			contains(field('series_index'), 
				'\.', 
				t_dot, 
				t_nodot), 
			t_noseries);
	template(template)

You put the above into the box that currently contains the {...} stuff. You can define t_noseries to be a different template, the one that is used when the book does not have a series.

[Gelina]

Thank you SO much. That works perfectly

[darkul]

Using version 0.9.33.

What am I doing wrong?
I always get a compiler error saying Nameerror: "test" is not defined.
Usually I know how to code, but here I'm stuck.
If I add program: as first line it says: SyntaxError: invalid syntax.

It seems the GPM mode is not working?
Am I missing something here, some Preferences not correctly set?

[darkul]

Ok, edit: error exists in 32/64-bit version

[chaley]

Originally Posted by darkul

Using version 0.9.33.

What am I doing wrong?
I always get a compiler error saying Nameerror: "test" is not defined.
Usually I know how to code, but here I'm stuck.
If I add program: as first line it says: SyntaxError: invalid syntax.

It seems the GPM mode is not working?
Am I missing something here, some Preferences not correctly set?

As far as I know GPM works fine. Post your template so I can see what is going wrong.

[darkul]

It's your template, just with t_nodot replaced.
Even used an empty string there.

Tried this

program:
	t_dot = '';
	t_nodot = ''

and it stops with a syntax error on "program:"

Could it be that I have to install calibre from scratch, deleting every single trace it left anywhere on my machine? I try that first before we have to think too much.
-> Ok, done that ... same problem as before

[chaley]

Originally Posted by darkul

It's your template, just with t_nodot replaced.
Even used an empty string there.

Tried this

program:
	t_dot = '';
	t_nodot = ''

and it stops with a syntax error on "program:"

That text works fine for me, as shown in the attached screen capture. Where exactly are you putting it when you get the syntax error?

[darkul]

Ah, ok, maybe that's not working at all if I enter it in the wrong windows, though to me this seems illogical. Why is there a posibility to add GPMs in "Template functions" if it is not compiling ok?

Under Preferences - Template functions
Though window looks different.

[chaley]

Originally Posted by darkul

Ah, ok, maybe that's not working at all if I enter it in the wrong windows, though to me this seems illogical. Why is there a posibility to add GPMs in "Template functions" if it is not compiling ok?

Under Preferences - Template functions
Though window looks different.

User-defined template functions are not GPM templates. They are real python programs that are used to create new GPM functions. You would use them to add new functionality to the template language. For example, some people have used them to parse annotations from books to get the percentage of the book read.

You enter GPM templates in any box that can accept a "{ ... }" style template, such as for save-to-disk or send-to-device, or when creating or editing composite custom columns.