check if a list has at least 2 elements(regex matches)

checklist.txt

# check if a list has at least 2 elements(regex matches)

cmake_minimum_required(VERSION 3.3)

macro(test)
  set(var ${ARGN})
  if(var MATCHES ";")
    message(${ARGN} ": YES")
  else()
    message(${ARGN} ": NO")
  endif()
endmacro()

test(a b c d)     # abcd: YES
test("a b c d")   # a b c d: NO