Multiple line title with ebook-convert

[Dyspeptica]

I'm trying to convert a number of html files to ebub with ebook-convert. I can insert a title (which shows up on the cover) but the title is actually three parts and really should be on three separate lines....rank, name and serial number so to speak.

I am passing the title to ebook-convert with --title "${title}". So, does anyone know how I can either insert a newline which ebook-convert will honor OR, does anyone know how I can pass three separate items to ebook-convert.

Before anyone jumps in, yes, I can insert custom text into the generate-cover plugin, but that is fixed text intended to be used on every file/book. I need to insert unique text into each file and do so programmatically. There is, I understand, a "template language" but I can't find a reference which alludes to want I need to do.

[kovidgoyal]

There is no way to use newlines in the title when generating covers. I suggest youuse some image manipulation software to create the cover (imagemagick is great for doing this programmatically) and then pass the generated cover to ebook-convert.

[Dyspeptica]

Thanks! Kiwi dude thought that there might be some way to do it with the template language, since custom text is available inside his generate-cover plugin (which also can work as a precursor wrapper to ebook-convert) but he was unsure of how that would work. But the trick is to insert what I want into the stream, since the generate-cover plugin willactually handle what I want, but I don't want to do it through the gui. Any thoughts, or is it a case of 'Damn I hate it when that happens!

[Dyspeptica]

Revisiting this issue. The generate-cover plugin allows custom text with separate lines.
How is that done internally? Is there no way that the (internal) variables cannot be seen/exposed for external poking?