Hi. I’m writing a custom numbering function to support numbering of
1. (a)
I don’t know why it’s not working, so I want to produce some debug output to stdout. Typst has a powerful scripting system, so I expected it to support debug outputs. However that seems not the case. The closest to what I want is panic, but it stops further execution at the first layer without giving me what I care about (the arguments at the second layer).
I think it is unfeasible to produce content as debug output, since the return value of this function isn’t used as content, and calling it manually doesn’t make sense since I want to know how Typst calls it in nested enums.
#set enum(
numbering: (..numbers) => {
let numbers = numbers.pos();
panic(json.encode(numbers));
if numbers.len() == 1 {
return numbering("1.", numbers.at(0))
}
if numbers.len() == 2 {
return numbering("(a)", numbers.at(1))
}
}
)
+ + Hello
World
Hello. There is an open issue for what you want: Logging function for debug output · Issue #1669 · typst/typst · GitHub. In short, it’s hard to design it so that it will play nicely with packages, and a performance can decrease. You can read through the messages and if you have any thoughts, you’re welcome to leave the feedback.
The problem with your code is that you forgot to enable full numbering. Furthermore, you should process numbers together, which means you should pass ..numbers and not just numbers.at(nth). I’m not sure why numbering function uses the last character ) instead of one that is right after the 1st position in the pattern (.), so just setting numbering: "1. (a)" would work incorrectly. Perhaps it’s a bug, and you can report it, if there isn’t any other that already exists. But here is a working example:
