Syntax for custom lists in programs

[ivanm]

I'm trying to add a tag to my books based upon whether it's a graphic novel.

What I'm trying to do is:

comic_types = ["CBR", "CBZ", "CBT", "CBA", "CB7"];
formats = approximate_formats();

has_comic_formats = list_intersection(comic_types, formats,",");
# etc.

However, the definition of comic_types is obviously wrong (in that I get a "Formatter: failed to scan program. Invalid input ..." error when I try to use it).

Does calibre have support for actual lists, or is it just all operating on Strings (and doing text-munging)?

[chaley]

By calibre I assume you mean the template language. You are correct, the template language supports strings. A string is converted to a list if the context calls for it. In your example you would use "CBR, CBZ, CBT, CBA, CB7".

If you want to use "real" lists then you can write a custom formatter function in python, which will of course have much better performance than a template language program.

[ivanm]

That's what I was afraid of. Thanks for confirming for me chaley.