(* mcPretty.def provides an interface to the pretty printing of output code.

Copyright (C) 2016-2023 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.

This file is part of GNU Modula-2.

GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.

GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Modula-2; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  *)

DEFINITION MODULE mcPretty ;


FROM DynamicStrings IMPORT String ;

TYPE
   pretty ;
   writeProc = PROCEDURE (CHAR) ;
   writeLnProc = PROCEDURE ;


(*
   initPretty - initialise a pretty print data structure.
*)

PROCEDURE initPretty (w: writeProc; l: writeLnProc) : pretty ;


(*
   dupPretty - duplicate a pretty print data structure.
*)

PROCEDURE dupPretty (p: pretty) : pretty ;


(*
   killPretty - destroy a pretty print data structure.
                Post condition:  p is assigned to NIL.
*)

PROCEDURE killPretty (VAR p: pretty) ;


(*
   pushPretty - duplicate, p.  Push, p, and return the duplicate.
*)

PROCEDURE pushPretty (p: pretty) : pretty ;


(*
   popPretty - pops the pretty object from the stack.
*)

PROCEDURE popPretty (p: pretty) : pretty ;


(*
   getindent - returns the current indent value.
*)

PROCEDURE getindent (p: pretty) : CARDINAL ;


(*
   setindent - sets the current indent to, n.
*)

PROCEDURE setindent (p: pretty; n: CARDINAL) ;


(*
   getcurpos - returns the current cursor position.
*)

PROCEDURE getcurpos (s: pretty) : CARDINAL ;


(*
   getseekpos - returns the seek position.
*)

PROCEDURE getseekpos (s: pretty) : CARDINAL ;


(*
   getcurline - returns the current line number.
*)

PROCEDURE getcurline (s: pretty) : CARDINAL ;


(*
   setNeedSpace - sets needSpace flag to TRUE.
*)

PROCEDURE setNeedSpace (s: pretty) ;


(*
   noSpace - unset needsSpace.
*)

PROCEDURE noSpace (s: pretty) ;


(*
   print - print a string using, p.
*)

PROCEDURE print (p: pretty; a: ARRAY OF CHAR) ;


(*
   prints - print a string using, p.
*)

PROCEDURE prints (p: pretty; s: String) ;


(*
   raw - print out string, s, without any translation of
         escape sequences.
*)

PROCEDURE raw (p: pretty; s: String) ;


END mcPretty.