defined as types and functions rather than (grammar operators)

generic type

wikipedia (Set_theory) wikipedia (Set)

voir /KmlLibs/DEFAULT/functions.txt

#some functions are defined with synonym names
#set theory and collection inspiration
FUNCTION isEmpty : setOf LIKE ->Boolean .
FUNCTION notEmpty :  setOf LIKE ->Boolean .
FUNCTION member  : setOf LIKE;LIKE ->Boolean .
FUNCTION notin  : setOf LIKE;LIKE ->Boolean .
FUNCTION includes  : setOf LIKE;LIKE ->Boolean .
FUNCTION includesAll  : setOf LIKE;setOf LIKE ->Boolean .
FUNCTION add :  setOf LIKE;LIKE -> setOf LIKE .
FUNCTION including :  setOf LIKE;LIKE -> setOf LIKE .
FUNCTION excludes : setOf LIKE;LIKE ->Boolean .
FUNCTION excludesAll : setOf LIKE;setOf LIKE ->Boolean .
FUNCTION excluding :  setOf LIKE;LIKE -> setOf LIKE .
FUNCTION intersection : setOf LIKE;setOf LIKE ->setOf LIKE .
FUNCTION union : setOf LIKE; setOf LIKE ->setOf LIKE .
FUNCTION differ : setOf LIKE; setOf LIKE ->setOf LIKE .
FUNCTION size : setOf LIKE ->Integer .
FUNCTION count : setOf LIKE;LIKE ->Integer .

FUNCTION differ : setOf LIKE;setOf LIKE -> setOf LIKE. 

FUNCTION differ  : setOf LIKE ; setOf LIKE ->setOf LIKE .
  # set difference
FUNCTION oneOf : setOf LIKE -> LIKE .
  # pick an element in the set
FUNCTION oneNotin : setOf LIKE -> LIKE .
  # pick an element in the complementary set
#FUNCTION asArray : setOf LIKE -> array[1..??] of LIKE .
  # transtyping

generic type

functions