Atom Manipulation Functions

atoms are represented as prolog atoms.

atom(X)

forces X to an atom. atoms will evaluate to themselves. Lists will recursively evaluate concatenations of their elements, with spaces between each element.

  atom(foo) => foo
  atom(5) => '5'  TODO!!!
  atom([a b c d / e f g h]) => 'a b c d/e f g h'
  atom("a b c d (1+2)") => 'a b c d 3'

qlist(X)

as atom(X), but inserts no spacers

join(C L)

concatenates elements of L with C between each element

  join('/' [a b c]) => 'a/b/c'

split(C X)

splits an atom into a list using C as a separator

  split('/','a/b/c') => [a b c]