Parse an ISO8601 Time Period definition to a GDScript Dictionary

iso8601_parser.gd

extends Resource

var regex_str: String = "((?<repeat>R[0-9]+)\/)?P((?<years>[0-9]+)Y)?((?<months>[0-9]+)M)?((?<weeks>[0-9]+)W)?((?<days>[0-9]+)D)?(T((?<hours>[0-9]+)H)?((?<minutes>[0-9]+)M)?((?<seconds>[0-9]+\.?[0-9]+)?S)?)?"

var regex: RegEx.new()

class _init() -> void:
  regex.compile(regex_str)

func parse_iso(iso_string: String) -> RegExMatch:
  var result: RegExMatch = regex.search(iso_string)
  if not result:
    printerr("Could not evaluate provided string, since it doesn't follow ISO8691!")
    return null
  return result

func parse_iso_to_dict(iso_string: String) -> Dictionary:
  var result: RegExMatch = parse_iso(iso_string)
  if not result:
    return {}
  return {
    repeat = result.get_string("repeat").rstrip("/") as int,
    years = result.get_string("years") as float,
    months = result.get_string("months") as float,
    weeks = result.get_string("weeks") as float,
    days = result.get_string("days") as float,
    minutes = result.get_string("minutes") as float,
    seconds = result.get_string("seconds") as float
  }
  
  
  

tests.txt

PT2H20M10.5S
P1Y3M20D
P1Y3M20DT2H20M10.5S
R3/PT2H20M10.5S
R3/P1Y3M20D
R3/P1Y3M20DT2H20M10.5S