Transform flat keyset into a list

config.yml

#@ load("@ytt:data", "data")
#@ load("parse-input.star", "fruit_from_struct")
---
fruits: #@ fruit_from_struct(data.values)

parse-input.star

load("@ytt:regexp", "regexp")

attrs = {
  "fruit": "name",
  "count": "number"
}

def fruit_from_struct(values):
  fruits = []
  for a in dir(values):
    idx = int(find("[^0-9]+([0-9]+)", a))
    attr = find("([^0-9]+)[0-9]+", a)
    attr = attrs[attr] if attr in attrs else attr
    for i in range(idx-len(fruits)+1):
      fruits.append({})
    end
    fruits[idx].update({attr: values[a]})
  end
  return fruits
end

def find(regex, str):
  return regexp.replace(regex, str, "$1")
end

values.yml

#@data/values
---
fruit0: bannana
count0: 2
fruit1: strawberry
count1: 400