Method code for $list.to_english()

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---

  1: arg list, @options;
  2: var empty, and, sep;
  3: 
  4: [(empty ?= "nothing"), (and ?= " and "), (sep ?= ", ")] = options;
  5: switch (list.length()) {
  6:     case 0:
  7:         return empty;
  8:     case 1:
  9:         return tostr(list[1]);
 10: }
 11: return join(list.delete(list.length()), sep) + and + tostr(list[list.length()]);

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// Created 27-Mar-1995 as a part of ColdCore, see: @help Credit