Product nomenclature template for Typst

nomenclature.typ

#let segments = (
  (nomenclature: "4", title: "Refrigerant Type", description: [4 = R-410A \ 2 = R22], separator: ""),
  (nomenclature: "TE", title: "Application", description: [TE = Fully Convertible \ TG = Semi Convertible], separator: "-"),
  (nomenclature: "E", title: "Product Family", description: [E = Leadership -- Variable Speed \ P = Leadership], separator: "-"),
)

#let nomenclature(
  segments: ((nomenclature: "A", title: "Foo", description: [Bar], separator: "-"))
) = {
  place(top + left, [#box()#label("margins")]) // get top + left margins dynamically
  let widths = state("widths", 0) // records the width of each segment in the example line
  align(right,
    for (i, seg) in segments.enumerate() {
      // store segment in a variable to measure its width
      let body = [ #box(underline(offset: 3pt, stroke: 1pt,seg.nomenclature))#label("nom_segment_" + str(i)) ]
      style(styles => {
        let size = measure(body, styles)
        widths.update(size.width) // store width of the segment
        body // display segment
      })
      if i < segments.len()-1 {
        [#seg.separator] // don't display separator after the last segment
      }
    }
  )
  for (i, seg) in segments.enumerate() {
    [== #seg.title #box()#label("nom_title_" + str(i))]
    [#seg.description]
    locate(loc => {
      let top_left = query(label("margins"), loc).first().location().position() // get margins
      let begin = query(label("nom_title_" + str(i)), loc).first().location().position()
      let segment = query(label("nom_segment_" + str(i)), loc).first()
      let end = segment.location().position()
      let width = widths.at(segment.location())
      let endPath = (end.x + (width / 2), end.y + 1em + 0.1cm)
      place(
        top + left,
        dx: -top_left.x,
        dy: -top_left.y,
        path(
          (begin.x, begin.y - 0.3em),
          (end.x + (width / 2),
          begin.y - 0.3em),
          endPath
        )
      )
      place(
        top + left,
        dx: -top_left.x,
        dy: -top_left.y,
        polygon(
          fill: black,
          stroke: none,
          (endPath.at(0), endPath.at(1) - 0.1cm),
          (endPath.at(0) - 0.1cm, endPath.at(1) + 0.2cm),
          (endPath.at(0) + 0.1cm, endPath.at(1) + 0.2cm)
        )
      )
    })
  }
}

= Air Handlers - Residential

#nomenclature(segments: segments)

This seems to have an issue with sizing. trying to make two of these breaks the arrow lengths.

This seems to have an issue with sizing. trying to make two of these breaks the arrow lengths.

I think that makes sense. If you use this function more than once, you will probably have duplicate labels and conflicting states.

Using more than one would require some way to add a unique identifier to each of the labels and the state, maybe adding a unique name as an additional parameter which would be included in each label id and state id.