popl09/pretty_print_popl.ml

   1 (*
   2  * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen
   3  * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix
   4  * This file is part of Coccinelle.
   5  *
   6  * Coccinelle is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, according to version 2 of the License.
   9  *
  10  * Coccinelle is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with Coccinelle.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * The authors reserve the right to distribute this or future versions of
  19  * Coccinelle under other licenses.
  20  *)
  21
  22
  23 open Format
  24 module Past = Ast_popl
  25 module Ast = Ast_cocci
  26
  27 let start_block str =
  28   force_newline(); print_string "  "; open_box 0
  29
  30 let end_block str =
  31   close_box(); force_newline ()
  32
  33 (* --------------------------------------------------------------------- *)
  34
  35 let print_around printer term = function
  36     Ast.NOTHING -> printer term
  37   | Ast.BEFORE(bef,_) ->
  38       Pretty_print_cocci.print_anything "<<< " bef; printer term
  39   | Ast.AFTER(aft,_) ->
  40       printer term; Pretty_print_cocci.print_anything ">>> " aft
  41   | Ast.BEFOREAFTER(bef,aft,_) ->
  42       Pretty_print_cocci.print_anything "<<< " bef; printer term;
  43       Pretty_print_cocci.print_anything ">>> " aft
  44
  45 let mcode fn = function
  46     (x, _, Ast.MINUS(_,_,_,plus_stream), pos) ->
  47       print_string "-"; fn x;
  48       Pretty_print_cocci.print_anything ">>> " plus_stream
  49   | (x, _, Ast.CONTEXT(_,plus_streams), pos) ->
  50         print_around fn x plus_streams
  51   | (x, info, Ast.PLUS _, pos) -> fn x
  52
  53 (* --------------------------------------------------------------------- *)
  54
  55 let rec print_sequence = function
  56     Past.Seq(e,seq) -> print_element e; force_newline(); print_sequence seq
  57   | Past.Empty -> ()
  58   | Past.SExists((_,v),seq) -> print_string "exists "; print_string v;
  59       print_string " ."; force_newline(); print_sequence seq
  60
  61 and print_term = function
  62     Past.Atomic(term) -> Pretty_print_cocci.rule_elem "" term
  63   | Past.IfThen(test,thn,(_,_,_,aft)) ->
  64       print_term test; print_term thn;
  65       mcode (function _ -> ()) ((),Ast.no_info,aft,Ast.NoMetaPos)
  66   | Past.TExists((_,v),term) -> print_string "exists "; print_string v;
  67       print_string " ."; force_newline(); print_term term
  68
  69 and print_element = function
  70     Past.Term(term,_) -> print_term term
  71   | Past.Or(seq1,seq2) ->
  72       force_newline(); print_string "("; force_newline(); print_sequence seq1;
  73       print_string "|"; force_newline(); print_sequence seq2; print_string ")"
  74   | Past.DInfo(dots) ->
  75       start_block();
  76       print_dots dots;
  77       end_block()
  78   | Past.EExists((_,v),elem) -> print_string "exists "; print_string v;
  79       print_string " ."; force_newline(); print_element elem
  80
  81 and print_dots = function
  82     Past.Dots -> print_string "..."
  83   | Past.Nest(seq)-> print_string "<..."; start_block(); print_sequence seq;
  84       end_block(); print_string "...>"
  85   | Past.When(dots,seq) -> print_dots dots; print_string " when != ";
  86       open_box 0; print_sequence seq; close_box()
  87
  88 (* --------------------------------------------------------------------- *)
  89
  90 let pretty_print_e e =
  91   print_element e;
  92   print_newline()
  93
  94 let pretty_print sl =
  95   print_sequence sl;
  96   print_newline()
  97