[bpt/coccinelle.git] / engine / sgrep.ml

(*
 * Copyright 2010, INRIA, University of Copenhagen
 * Julia Lawall, Rene Rydhof Hansen, Gilles Muller, Nicolas Palix
 * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen
 * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix
 * This file is part of Coccinelle.
 *
 * Coccinelle 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, according to version 2 of the License.
 *
 * Coccinelle 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 Coccinelle.  If not, see <http://www.gnu.org/licenses/>.
 *
 * The authors reserve the right to distribute this or future versions of
 * Coccinelle under other licenses.
 *)


type marker =
    NoMark | BefMark of string | AftMark of string
  | BefAftMark of string * string

let extract_sgrep_marker l =
  let rec inner_loop acc = function
      [] -> (acc,[])
    | Ast_cocci.SgrepStartTag(s)::rest ->
	(match acc with
	  NoMark -> inner_loop (BefMark(s)) rest
	| _ -> failwith "unexpected mark")
    | Ast_cocci.SgrepEndTag(s)::rest ->
	(match acc with
	  NoMark -> inner_loop (AftMark(s)) rest
	| BefMark(m) -> inner_loop (BefAftMark(m,s)) rest
	| _ -> failwith "unexpected mark")
    | x::rest ->
	let (acc,rest) = inner_loop acc rest in
	(acc,x::rest) in
  let (acc,l) =
    List.fold_left
      (function (acc,prev) ->
	function cur ->
	  let (acc,cur) = inner_loop acc cur in
	  (acc,cur::prev))
      (NoMark,[]) l in
  (acc,List.rev l)

let process_sgrep ii mck =
  let file = Ast_c.file_of_info ii in
  let line = Ast_c.line_of_info ii in
  let col = Ast_c.col_of_info ii in
  let str = Ast_c.str_of_info ii in
  match mck with
    Ast_cocci.MINUS(pos,inst,adj,repl) ->
      (match extract_sgrep_marker repl with
	(NoMark,_) -> mck
      |	(BefMark(marker),repl) ->
	  Printf.printf "Match on line %s starting at %s: line %d offset %d\n"
	    marker file line col;
	  Ast_cocci.MINUS(pos,inst,adj,repl)
      |	(AftMark(marker),repl) ->
	  Printf.printf "Match on line %s ending at %s: line %d offset %d\n"
	    marker file line (col + String.length str);
	  Ast_cocci.MINUS(pos,inst,adj,repl)
      |	(BefAftMark(bmarker,amarker),repl) ->
	  Printf.printf "Match on line %s starting at %s: line %d offset %d\n"
	    bmarker file line col;
	  Printf.printf "Match on line %s ending at %s: line %d offset %d\n"
	    amarker file line (col + String.length str);
	  Ast_cocci.MINUS(pos,inst,adj,repl))
  | Ast_cocci.CONTEXT(pos,Ast_cocci.NOTHING) -> mck
  | Ast_cocci.CONTEXT(pos,Ast_cocci.BEFORE(bef,c)) ->
      (match extract_sgrep_marker bef with
	(NoMark,_) -> mck
      |	(BefMark(marker),[]) ->
	  Printf.printf "Match on line %s starting at %s: line %d offset %d\n"
	    marker file line col;
	  Ast_cocci.CONTEXT(pos,Ast_cocci.NOTHING)
      |	(BefMark(marker),bef) ->
	  Printf.printf "Match on line %s starting at %s: line %d offset %d\n"
	    marker file line col;
	  Ast_cocci.CONTEXT(pos,Ast_cocci.BEFORE(bef,c))
      |	_ -> failwith "after not possible")
  | Ast_cocci.CONTEXT(pos,Ast_cocci.AFTER(aft,c)) ->
      (match extract_sgrep_marker aft with
	(NoMark,_) -> mck
      |	(AftMark(marker),[]) ->
	  Printf.printf "Match on line %s ending at %s: line %d offset %d\n"
	    marker file line (col + String.length str);
	  Ast_cocci.CONTEXT(pos,Ast_cocci.NOTHING)
      |	(AftMark(marker),aft) ->
	  Printf.printf "Match on line %s ending at %s: line %d offset %d\n"
	    marker file line (col + String.length str);
	  Ast_cocci.CONTEXT(pos,Ast_cocci.AFTER(aft,c))
      |	_ -> failwith "before not possible")
  | Ast_cocci.CONTEXT(pos,Ast_cocci.BEFOREAFTER(bef,aft,c)) ->
      (match extract_sgrep_marker bef with
	(NoMark,_) ->
	  (match extract_sgrep_marker aft with
	    (NoMark,_) -> mck
	  | (AftMark(marker),[]) ->
	      Printf.printf
		"Match on line %s ending at %s: line %d offset %d\n"
		marker file line (col + String.length str);
	      Ast_cocci.CONTEXT(pos,Ast_cocci.BEFORE(bef,c))
	  | (AftMark(marker),aft) ->
	      Printf.printf
		"Match on line %s ending at %s: line %d offset %d\n"
		marker file line (col + String.length str);
	      Ast_cocci.CONTEXT(pos,Ast_cocci.BEFOREAFTER(bef,aft,c))
	  | _ -> failwith "before not possible")
      | (BefMark(marker),[]) ->
	  Printf.printf "Match on line %s starting at %s: line %d offset %d\n"
	    marker file line col;
	  (match extract_sgrep_marker aft with
	    (NoMark,_) -> Ast_cocci.CONTEXT(pos,Ast_cocci.AFTER(aft,c))
	  | (AftMark(marker),[]) ->
	      Printf.printf
		"Match on line %s ending at %s: line %d offset %d\n"
		marker file line (col + String.length str);
	      Ast_cocci.CONTEXT(pos,Ast_cocci.NOTHING)
	  | (AftMark(marker),aft) ->
	      Printf.printf
		"Match on line %s ending at %s: line %d offset %d\n"
		marker file line (col + String.length str);
	      Ast_cocci.CONTEXT(pos,Ast_cocci.AFTER(aft,c))
	  | _ -> failwith "before not possible")
      | (BefMark(marker),bef) ->
	  Printf.printf "Match on line %s starting at %s: line %d offset %d\n"
	    marker file line col;
	  (match extract_sgrep_marker aft with
	    (NoMark,_) ->
	      Ast_cocci.CONTEXT(pos,Ast_cocci.BEFOREAFTER(bef,aft,c))
	  | (AftMark(marker),[]) ->
	      Printf.printf
		"Match on line %s ending at %s: line %d offset %d\n"
		marker file line (col + String.length str);
	      Ast_cocci.CONTEXT(pos,Ast_cocci.BEFORE(bef,c))
	  | (AftMark(marker),aft) ->
	      Printf.printf
		"Match on line %s ending at %s: line %d offset %d\n"
		marker file line (col + String.length str);
	      Ast_cocci.CONTEXT(pos,Ast_cocci.BEFOREAFTER(bef,aft,c))
	  | _ -> failwith "before not possible")
      |	_ -> failwith "after not possible")
  | _ -> failwith "unexpected plus code"
Commit	Line	Data
c491d8ee C	1	(*
	2	* Copyright 2010, INRIA, University of Copenhagen
	3	* Julia Lawall, Rene Rydhof Hansen, Gilles Muller, Nicolas Palix
	4	* Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen
	5	* Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix
	6	* This file is part of Coccinelle.
	7	*
	8	* Coccinelle is free software: you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation, according to version 2 of the License.
	11	*
	12	* Coccinelle is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with Coccinelle. If not, see <http://www.gnu.org/licenses/>.
	19	*
	20	* The authors reserve the right to distribute this or future versions of
	21	* Coccinelle under other licenses.
	22	*)
	23
	24
34e49164 C	25	type marker =
	26	NoMark \| BefMark of string \| AftMark of string
	27	\| BefAftMark of string * string
	28
	29	let extract_sgrep_marker l =
	30	let rec inner_loop acc = function
	31	[] -> (acc,[])
	32	\| Ast_cocci.SgrepStartTag(s)::rest ->
	33	(match acc with
	34	NoMark -> inner_loop (BefMark(s)) rest
	35	\| _ -> failwith "unexpected mark")
	36	\| Ast_cocci.SgrepEndTag(s)::rest ->
	37	(match acc with
	38	NoMark -> inner_loop (AftMark(s)) rest
	39	\| BefMark(m) -> inner_loop (BefAftMark(m,s)) rest
	40	\| _ -> failwith "unexpected mark")
	41	\| x::rest ->
	42	let (acc,rest) = inner_loop acc rest in
	43	(acc,x::rest) in
	44	let (acc,l) =
	45	List.fold_left
	46	(function (acc,prev) ->
	47	function cur ->
	48	let (acc,cur) = inner_loop acc cur in
	49	(acc,cur::prev))
	50	(NoMark,[]) l in
	51	(acc,List.rev l)
	52
	53	let process_sgrep ii mck =
	54	let file = Ast_c.file_of_info ii in
	55	let line = Ast_c.line_of_info ii in
	56	let col = Ast_c.col_of_info ii in
	57	let str = Ast_c.str_of_info ii in
	58	match mck with
708f4980	59	Ast_cocci.MINUS(pos,inst,adj,repl) ->
34e49164 C	60	(match extract_sgrep_marker repl with
	61	(NoMark,_) -> mck
	62	\| (BefMark(marker),repl) ->
	63	Printf.printf "Match on line %s starting at %s: line %d offset %d\n"
	64	marker file line col;
708f4980	65	Ast_cocci.MINUS(pos,inst,adj,repl)
34e49164 C	66	\| (AftMark(marker),repl) ->
	67	Printf.printf "Match on line %s ending at %s: line %d offset %d\n"
	68	marker file line (col + String.length str);
708f4980	69	Ast_cocci.MINUS(pos,inst,adj,repl)
34e49164 C	70	\| (BefAftMark(bmarker,amarker),repl) ->
	71	Printf.printf "Match on line %s starting at %s: line %d offset %d\n"
	72	bmarker file line col;
	73	Printf.printf "Match on line %s ending at %s: line %d offset %d\n"
	74	amarker file line (col + String.length str);
708f4980	75	Ast_cocci.MINUS(pos,inst,adj,repl))
34e49164	76	\| Ast_cocci.CONTEXT(pos,Ast_cocci.NOTHING) -> mck
951c7801	77	\| Ast_cocci.CONTEXT(pos,Ast_cocci.BEFORE(bef,c)) ->
34e49164 C	78	(match extract_sgrep_marker bef with
	79	(NoMark,_) -> mck
	80	\| (BefMark(marker),[]) ->
	81	Printf.printf "Match on line %s starting at %s: line %d offset %d\n"
	82	marker file line col;
	83	Ast_cocci.CONTEXT(pos,Ast_cocci.NOTHING)
	84	\| (BefMark(marker),bef) ->
	85	Printf.printf "Match on line %s starting at %s: line %d offset %d\n"
	86	marker file line col;
951c7801	87	Ast_cocci.CONTEXT(pos,Ast_cocci.BEFORE(bef,c))
34e49164	88	\| _ -> failwith "after not possible")
951c7801	89	\| Ast_cocci.CONTEXT(pos,Ast_cocci.AFTER(aft,c)) ->
34e49164 C	90	(match extract_sgrep_marker aft with
	91	(NoMark,_) -> mck
	92	\| (AftMark(marker),[]) ->
	93	Printf.printf "Match on line %s ending at %s: line %d offset %d\n"
	94	marker file line (col + String.length str);
	95	Ast_cocci.CONTEXT(pos,Ast_cocci.NOTHING)
	96	\| (AftMark(marker),aft) ->
	97	Printf.printf "Match on line %s ending at %s: line %d offset %d\n"
	98	marker file line (col + String.length str);
951c7801	99	Ast_cocci.CONTEXT(pos,Ast_cocci.AFTER(aft,c))
34e49164	100	\| _ -> failwith "before not possible")
951c7801	101	\| Ast_cocci.CONTEXT(pos,Ast_cocci.BEFOREAFTER(bef,aft,c)) ->
34e49164 C	102	(match extract_sgrep_marker bef with
	103	(NoMark,_) ->
	104	(match extract_sgrep_marker aft with
	105	(NoMark,_) -> mck
	106	\| (AftMark(marker),[]) ->
	107	Printf.printf
	108	"Match on line %s ending at %s: line %d offset %d\n"
	109	marker file line (col + String.length str);
951c7801	110	Ast_cocci.CONTEXT(pos,Ast_cocci.BEFORE(bef,c))
34e49164 C	111	\| (AftMark(marker),aft) ->
	112	Printf.printf
	113	"Match on line %s ending at %s: line %d offset %d\n"
	114	marker file line (col + String.length str);
951c7801	115	Ast_cocci.CONTEXT(pos,Ast_cocci.BEFOREAFTER(bef,aft,c))
34e49164 C	116	\| _ -> failwith "before not possible")
	117	\| (BefMark(marker),[]) ->
	118	Printf.printf "Match on line %s starting at %s: line %d offset %d\n"
	119	marker file line col;
	120	(match extract_sgrep_marker aft with
951c7801	121	(NoMark,_) -> Ast_cocci.CONTEXT(pos,Ast_cocci.AFTER(aft,c))
34e49164 C	122	\| (AftMark(marker),[]) ->
	123	Printf.printf
	124	"Match on line %s ending at %s: line %d offset %d\n"
	125	marker file line (col + String.length str);
	126	Ast_cocci.CONTEXT(pos,Ast_cocci.NOTHING)
	127	\| (AftMark(marker),aft) ->
	128	Printf.printf
	129	"Match on line %s ending at %s: line %d offset %d\n"
	130	marker file line (col + String.length str);
951c7801	131	Ast_cocci.CONTEXT(pos,Ast_cocci.AFTER(aft,c))
34e49164 C	132	\| _ -> failwith "before not possible")
	133	\| (BefMark(marker),bef) ->
	134	Printf.printf "Match on line %s starting at %s: line %d offset %d\n"
	135	marker file line col;
	136	(match extract_sgrep_marker aft with
708f4980	137	(NoMark,_) ->
951c7801	138	Ast_cocci.CONTEXT(pos,Ast_cocci.BEFOREAFTER(bef,aft,c))
34e49164 C	139	\| (AftMark(marker),[]) ->
	140	Printf.printf
	141	"Match on line %s ending at %s: line %d offset %d\n"
	142	marker file line (col + String.length str);
951c7801	143	Ast_cocci.CONTEXT(pos,Ast_cocci.BEFORE(bef,c))
34e49164 C	144	\| (AftMark(marker),aft) ->
	145	Printf.printf
	146	"Match on line %s ending at %s: line %d offset %d\n"
	147	marker file line (col + String.length str);
951c7801	148	Ast_cocci.CONTEXT(pos,Ast_cocci.BEFOREAFTER(bef,aft,c))
34e49164 C	149	\| _ -> failwith "before not possible")
	150	\| _ -> failwith "after not possible")
	151	\| _ -> failwith "unexpected plus code"