nl_tokens: * META (( export #t ))
pl_tokens: function sc_lastPair ( l ) { if ( ! sc_isPair ( l ) ) sc_error ( "sc_lastPair: pair expected" ) ; var res = l ; var cdr = l . cdr ; while ( sc_isPair ( cdr ) ) { <mask> = cdr ; cdr = res . cdr ; } return res ; }