anybody used lanterna? I cannot for the life of me figure out how to simply get a newline to display

I'm looking at laterna now and I'm not quite sure

Maybe something about the way it displays characters in cells means that a new line wont implicitly move to a cell below?

I need to convert file to PDF, but: - things have to be precise to each mm - input file has to be in format easy to edit by user, PhotoShop, some kind of drawing in web browser, maybe even XML - if font is too big to fit text into space it needs to decrease font I don’t any good solution to do it. Generating PDF is a nightmare. * Unless I want to pay a lot for some extra payment SaaS or libraries

But idea is to make a product from it, so I don’t want to stick with any sick high price licence

especially for label printers

In what way can something be precise to each mm, but also auto-adjust text size? I don't understand how those two desires can be satisfied at the same time.

I feel like I must be missing something… why is it that when I call keys on a sorted-map, I don’t get a sorted collection? I am trying to implement a simple interval tree, and this gap is a sticking point.

what do you mean by a sorted collection?

if you mean a seq of the keys in order, I am not sure, but I would be surprised if that is not what you get, so I wonder what makes you think that is not what you are getting

user=> 
(let [x (shuffle (range 32))]
  (= (sort x)
     (keys (into (sorted-map) (zipmap x x)))))
true
user=> 

maybe postscript would be helpful?

in general what you want to do might be a headache and a half, but it might be possible to hack together something specific

Like, a brute force way might be (if you are printing only one line on a label) to pick a font size based on a heuristic (12, lets say) and then render a pdf. Run an image of that pdf through handwriting recognition software and see if it reads it correctly

then just find the largest font size on which you can read everything

and if there is none then you can send a message back to your users that there is no way for you to do it

as an upside you can throw "uses machine learning" on whatever your product is

as a downside there is everything else

@hiredman I mean something that implements clojure.lang.Sorted so you can use subseq on it.

They do come back in the expected order, but not implementing the right interfaces to take full advantage of that.

Ah, but it turns out the map itself does implement sorted, so I can use subseq directly on that, which addresses my efficient interval matching quite effectively.

That’s what I was missing. ^_^