src/Pure/install_pp.ML

renamed 'defns' to 'defs';
removed 'sigclass';
replaced parents by enclose;
exported parens, brackets, mk_list, mk_big_list, mk_pair, mk_triple;
various minor internal changes;

(*  Title:      Pure/install_pp.ML
    ID:         $Id$

Set up automatic toplevel printing.
*)

install_pp (make_pp ["Thm", "thm"] pprint_thm);
install_pp (make_pp ["Thm", "theory"] pprint_theory);
install_pp (make_pp ["Thm", "cterm"] pprint_cterm);
install_pp (make_pp ["Thm", "ctyp"] pprint_ctyp);
install_pp (make_pp ["Sign", "sg"] Sign.pprint_sg);
install_pp (make_pp ["Syntax", "ast"] Syntax.pprint_ast);
install_pp (make_pp ["typ"] Syntax.simple_pprint_typ);

(*
install_pp (make_pp ["term"] pprint_term);
install_pp (make_pp ["typ"] pprint_typ);
*)