Named arguments, positional arguments and content, who is who? | Typst | Page 1

old bison May 10, 2023, 3:53 PM

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How to specify a function that takes a mandatory destargument and an optional labelargument that could be some extra content, much like the link()function ?

hasty delta May 10, 2023, 4:04 PM

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like this, or did you have something else in mind? #let my-fun(dest, label: none) = {...}

old bison May 10, 2023, 4:05 PM

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I have it like this but it complains whenever I do something like #path("path/to/myfile.txt")[myfile]

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Throws unexpected argument at [myfile]

hasty delta May 10, 2023, 4:12 PM

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You can define an argument sink like this. also see https://typst.app/docs/reference/types/arguments/

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?render ```rs
#let my-fun(dest, ..label) = {
dest
label.pos().at(0)
}
#my-fun("hi")[bye]

iron spireBOT May 10, 2023, 4:12 PM

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hasty delta ?render ```rs #let my-fun(dest, ..label) = { dest label.pos().at(0) } #my-fu...

old bison May 10, 2023, 4:16 PM

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I would prefer using just an optional argument, as I test it beforehand to see if its defined

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This is my function :

#let path(dest, label: none) = {
    if type(label) == "none" {
        label = dest
    }
    dest = "file:///" + dest.replace("\\", "/")
    box(
        fill: rgb("#eee"), 
        radius: 1pt, 
        inset: (left: 1pt, right: 3pt), 
        outset: (x: 0pt, y: 3pt), 
        emph(link(dest)[#label])
    )
}```

#Named arguments, positional arguments and content, who is who?