3 * Copyright (C) 2010 INRIA, University of Copenhagen DIKU
4 * Copyright (C) 1998-2009 Yoann Padioleau
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public License
8 * version 2.1 as published by the Free Software Foundation, with the
9 * special exception on linking described in file license.txt.
11 * This library is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the file
14 * license.txt for more details.
17 (*****************************************************************************)
19 (*****************************************************************************)
23 (* ---------------------------------------------------------------------- *)
24 (* Maybe could split common.ml and use include tricks as in ofullcommon.ml or
25 * Jane Street core lib. But then harder to bundle simple scripts like my
26 * make_full_linux_kernel.ml because would then need to pass all the files
27 * either to ocamlc or either to some #load. Also as the code of many
28 * functions depends on other functions from this common, it would
29 * be tedious to add those dependencies. Here simpler (have just the
30 * pb of the Prelude, but it's a small problem).
32 * pixel means code from Pascal Rigaux
33 * julia means code from Julia Lawall
35 (* ---------------------------------------------------------------------- *)
37 (*****************************************************************************)
39 (*****************************************************************************)
42 * - Pervasives, of course
52 * - =, <=, max min, abs, ...
53 * - List.rev, List.mem, List.partition,
54 * - List.fold*, List.concat, ...
55 * - Str.global_replace
56 * - Filename.is_relative
57 * - String.uppercase, String.lowercase
60 * The Format library allows to hide passing an indent_level variable.
61 * You use as usual the print_string function except that there is
62 * this automatic indent_level variable handled for you (and maybe
63 * more services). src: julia in coccinelle unparse_cocci.
67 * - ocamlgtk, and gtksourceview
78 * Many functions in this file were inspired by Haskell or Lisp librairies.
81 (*****************************************************************************)
83 (*****************************************************************************)
85 (* The following functions should be in their respective sections but
86 * because some functions in some sections use functions in other
87 * sections, and because I don't want to take care of the order of
88 * those sections, of those dependencies, I put the functions causing
89 * dependency problem here. C is better than caml on this with the
90 * ability to declare prototype, enabling some form of forward
97 exception UnixExit
of int
99 let rec (do_n
: int -> (unit -> unit) -> unit) = fun i f
->
100 if i
= 0 then () else (f
(); do_n
(i
-1) f
)
101 let rec (foldn
: ('a
-> int -> 'a
) -> 'a
-> int -> 'a
) = fun f acc i
->
102 if i
= 0 then acc
else foldn f
(f acc i
) (i
-1)
104 let sum_int = List.fold_left
(+) 0
106 (* could really call it 'for' :) *)
107 let fold_left_with_index f acc
=
108 let rec fold_lwi_aux acc n
= function
110 | x
::xs
-> fold_lwi_aux (f acc x n
) (n
+1) xs
111 in fold_lwi_aux acc
0
117 | (_
,[]) -> failwith
"drop: not enough"
118 | (n
,x
::xs
) -> drop (n
-1) xs
120 let rec enum_orig x n
= if x
= n
then [n
] else x
::enum_orig (x
+1) n
124 then failwith
(Printf.sprintf
"bad values in enum, expect %d <= %d" x n
);
125 let rec enum_aux acc x n
=
126 if x
= n
then n
::acc
else enum_aux (x
::acc
) (x
+1) n
128 List.rev
(enum_aux [] x n
)
133 | (_
,[]) -> failwith
"take: not enough"
134 | (n
,x
::xs
) -> x
::take (n
-1) xs
137 let last_n n l
= List.rev
(take n
(List.rev l
))
138 let last l
= List.hd
(last_n 1 l
)
141 let (list_of_string
: string -> char list
) = function
143 | s
-> (enum 0 ((String.length s
) - 1) +> List.map
(String.get s
))
145 let (lines
: string -> string list
) = fun s
->
146 let rec lines_aux = function
148 | [x
] -> if x
= "" then [] else [x
]
152 Str.split_delim
(Str.regexp
"\n") s
+> lines_aux
158 let null xs
= match xs
with [] -> true | _
-> false
163 let debugger = ref false
165 let unwind_protect f cleanup
=
166 if !debugger then f
() else
168 with e
-> begin cleanup e
; raise e
end
170 let finalize f cleanup
=
171 if !debugger then f
() else
180 let command2 s
= ignore
(Sys.command s
)
183 let (matched
: int -> string -> string) = fun i s
->
184 Str.matched_group i s
186 let matched1 = fun s
-> matched
1 s
187 let matched2 = fun s
-> (matched
1 s
, matched
2 s
)
188 let matched3 = fun s
-> (matched
1 s
, matched
2 s
, matched
3 s
)
189 let matched4 = fun s
-> (matched
1 s
, matched
2 s
, matched
3 s
, matched
4 s
)
190 let matched5 = fun s
-> (matched
1 s
, matched
2 s
, matched
3 s
, matched
4 s
, matched
5 s
)
191 let matched6 = fun s
-> (matched
1 s
, matched
2 s
, matched
3 s
, matched
4 s
, matched
5 s
, matched
6 s
)
192 let matched7 = fun s
-> (matched
1 s
, matched
2 s
, matched
3 s
, matched
4 s
, matched
5 s
, matched
6 s
, matched
7 s
)
194 let (with_open_stringbuf
: (((string -> unit) * Buffer.t
) -> unit) -> string) =
196 let buf = Buffer.create
1000 in
197 let pr s
= Buffer.add_string
buf (s ^
"\n") in
202 let foldl1 p
= function x
::xs
-> List.fold_left p x xs
| _
-> failwith
"foldl1"
204 (*****************************************************************************)
205 (* Debugging/logging *)
206 (*****************************************************************************)
208 (* I used this in coccinelle where the huge logging of stuff ask for
209 * a more organized solution that use more visual indentation hints.
211 * todo? could maybe use log4j instead ? or use Format module more
215 let _tab_level_print = ref 0
219 let _prefix_pr = ref ""
222 _tab_level_print := !_tab_level_print + _tab_indent;
224 (fun () -> _tab_level_print := !_tab_level_print - _tab_indent;)
228 print_string
!_prefix_pr;
229 do_n
!_tab_level_print (fun () -> print_string
" ");
235 print_string
!_prefix_pr;
236 do_n
!_tab_level_print (fun () -> print_string
" ");
245 let _chan_pr2 = ref (None
: out_channel
option)
247 let out_chan_pr2 ?
(newline
=true) s
=
248 match !_chan_pr2 with
251 output_string chan
(s ^
(if newline
then "\n" else ""));
254 let print_to_stderr = ref true
260 prerr_string
!_prefix_pr;
261 do_n
!_tab_level_print (fun () -> prerr_string
" ");
273 prerr_string
!_prefix_pr;
274 do_n
!_tab_level_print (fun () -> prerr_string
" ");
277 out_chan_pr2 ~newline
:false s
;
282 let pr_xxxxxxxxxxxxxxxxx () =
283 pr "-----------------------------------------------------------------------"
285 let pr2_xxxxxxxxxxxxxxxxx () =
286 pr2 "-----------------------------------------------------------------------"
289 let reset_pr_indent () =
290 _tab_level_print := 0
293 * let pr s = (print_string s; print_string "\n"; flush stdout)
294 * let pr2 s = (prerr_string s; prerr_string "\n"; flush stderr)
297 (* ---------------------------------------------------------------------- *)
299 (* I can not use the _xxx ref tech that I use for common_extra.ml here because
300 * ocaml don't like the polymorphism of Dumper mixed with refs.
302 * let (_dump_func : ('a -> string) ref) = ref
303 * (fun x -> failwith "no dump yet, have you included common_extra.cmo?")
304 * let (dump : 'a -> string) = fun x ->
307 * So I have included directly dumper.ml in common.ml. It's more practical
308 * when want to give script that use my common.ml, I just have to give
312 (* start of dumper.ml *)
314 (* Dump an OCaml value into a printable string.
315 * By Richard W.M. Jones (rich@annexia.org).
316 * dumper.ml 1.2 2005/02/06 12:38:21 rich Exp
323 string_of_int
(magic r
: int)
325 let rec get_fields acc
= function
327 | n
-> let n = n-1 in get_fields (field r
n :: acc
) n
331 if (magic r
: int) = 0 then true (* [] *)
334 let s = size r
and t
= tag r
in
335 if t
= 0 && s = 2 then is_list (field r
1) (* h :: t *)
341 else let h = field r
0 and t
= get_list (field r
1) in h :: t
344 (* XXX In future, print the address of value 'r'. Not possible in
345 * pure OCaml at the moment.
350 let s = size r
and t
= tag r
in
352 (* From the tag, determine the type of block. *)
353 if is_list r
then ( (* List. *)
354 let fields = get_list r
in
355 "[" ^
String.concat
"; " (List.map
dump fields) ^
"]"
357 else if t
= 0 then ( (* Tuple, array, record. *)
358 let fields = get_fields [] s in
359 "(" ^
String.concat
", " (List.map
dump fields) ^
")"
362 (* Note that [lazy_tag .. forward_tag] are < no_scan_tag. Not
363 * clear if very large constructed values could have the same
365 else if t
= lazy_tag
then opaque "lazy"
366 else if t
= closure_tag
then opaque "closure"
367 else if t
= object_tag
then ( (* Object. *)
368 let fields = get_fields [] s in
369 let clasz, id
, slots
=
370 match fields with h::h'
::t
-> h, h'
, t
| _
-> assert false in
371 (* No information on decoding the class (first field). So just print
372 * out the ID and the slots.
374 "Object #" ^
dump id ^
375 " (" ^
String.concat
", " (List.map
dump slots
) ^
")"
377 else if t
= infix_tag
then opaque "infix"
378 else if t
= forward_tag
then opaque "forward"
380 else if t
< no_scan_tag
then ( (* Constructed value. *)
381 let fields = get_fields [] s in
382 "Tag" ^ string_of_int t ^
383 " (" ^
String.concat
", " (List.map
dump fields) ^
")"
385 else if t
= string_tag
then (
386 "\"" ^
String.escaped
(magic r
: string) ^
"\""
388 else if t
= double_tag
then (
389 string_of_float
(magic r
: float)
391 else if t
= abstract_tag
then opaque "abstract"
392 else if t
= custom_tag
then opaque "custom"
393 else if t
= final_tag
then opaque "final"
394 else failwith
("dump: impossible tag (" ^ string_of_int t ^
")")
397 let dump v
= dump (repr v
)
399 (* end of dumper.ml *)
402 let (dump : 'a -> string) = fun x ->
407 (* ---------------------------------------------------------------------- *)
408 let pr2_gen x
= pr2 (dump x
)
412 (* ---------------------------------------------------------------------- *)
415 let _already_printed = Hashtbl.create
101
416 let disable_pr2_once = ref false
419 if !disable_pr2_once then pr2 s
421 if not
(Hashtbl.mem
_already_printed s)
423 Hashtbl.add
_already_printed s true;
427 let pr2_once s = xxx_once pr2 s
429 (* ---------------------------------------------------------------------- *)
430 let mk_pr2_wrappers aref
=
435 (* just to the log file *)
442 xxx_once out_chan_pr2 s
446 (* ---------------------------------------------------------------------- *)
447 (* could also be in File section *)
449 let redirect_stdout file f
=
451 let chan = open_out file
in
452 let descr = Unix.descr_of_out_channel
chan in
454 let saveout = Unix.dup
Unix.stdout
in
455 Unix.dup2
descr Unix.stdout
;
459 Unix.dup2
saveout Unix.stdout
;
464 let redirect_stdout_opt optfile f
=
467 | Some outfile
-> redirect_stdout outfile f
469 let redirect_stdout_stderr file f
=
471 let chan = open_out file
in
472 let descr = Unix.descr_of_out_channel
chan in
474 let saveout = Unix.dup
Unix.stdout
in
475 let saveerr = Unix.dup
Unix.stderr
in
476 Unix.dup2
descr Unix.stdout
;
477 Unix.dup2
descr Unix.stderr
;
478 flush stdout
; flush stderr
;
480 flush stdout
; flush stderr
;
481 Unix.dup2
saveout Unix.stdout
;
482 Unix.dup2
saveerr Unix.stderr
;
486 let redirect_stdin file f
=
488 let chan = open_in file
in
489 let descr = Unix.descr_of_in_channel
chan in
491 let savein = Unix.dup
Unix.stdin
in
492 Unix.dup2
descr Unix.stdin
;
494 Unix.dup2
savein Unix.stdin
;
498 let redirect_stdin_opt optfile f
=
501 | Some infile
-> redirect_stdin infile f
505 let with_pr2_to_string f =
509 (* ---------------------------------------------------------------------- *)
513 (* cf common.mli, fprintf, printf, eprintf, sprintf.
514 * also what is this ?
515 * val bprintf : Buffer.t -> ('a, Buffer.t, unit) format -> 'a
516 * val kprintf : (string -> 'a) -> ('b, unit, string, 'a) format4 -> 'b
526 (* ---------------------------------------------------------------------- *)
528 let _chan = ref stderr
529 let start_log_file () =
530 let filename = (spf "/tmp/debugml%d:%d" (Unix.getuid
()) (Unix.getpid
())) in
531 pr2 (spf "now using %s for logging" filename);
532 _chan := open_out
filename
535 let dolog s = output_string
!_chan (s ^
"\n"); flush
!_chan
537 let verbose_level = ref 1
538 let log s = if !verbose_level >= 1 then dolog s
539 let log2 s = if !verbose_level >= 2 then dolog s
540 let log3 s = if !verbose_level >= 3 then dolog s
541 let log4 s = if !verbose_level >= 4 then dolog s
543 let if_log f
= if !verbose_level >= 1 then f
()
544 let if_log2 f
= if !verbose_level >= 2 then f
()
545 let if_log3 f
= if !verbose_level >= 3 then f
()
546 let if_log4 f
= if !verbose_level >= 4 then f
()
548 (* ---------------------------------------------------------------------- *)
550 let pause () = (pr2 "pause: type return"; ignore
(read_line
()))
552 (* src: from getopt from frish *)
553 let bip () = Printf.printf
"\007"; flush stdout
554 let wait () = Unix.sleep
1
556 (* was used by fix_caml *)
557 let _trace_var = ref 0
558 let add_var() = incr
_trace_var
559 let dec_var() = decr
_trace_var
560 let get_var() = !_trace_var
562 let (print_n
: int -> string -> unit) = fun i
s ->
563 do_n i
(fun () -> print_string
s)
564 let (printerr_n
: int -> string -> unit) = fun i
s ->
565 do_n i
(fun () -> prerr_string
s)
567 let _debug = ref true
568 let debugon () = _debug := true
569 let debugoff () = _debug := false
570 let debug f
= if !_debug then f
() else ()
575 * let debugger = ref false
579 (*****************************************************************************)
581 (*****************************************************************************)
584 command2("grep VmData /proc/" ^ string_of_int
(Unix.getpid
()) ^
"/status")
587 let stat = Gc.stat() in
588 let conv_mo x
= x
* 4 / 1000000 in
589 Printf.sprintf
"maximal = %d Mo\n" (conv_mo stat.Gc.top_heap_words
) ^
590 Printf.sprintf
"current = %d Mo\n" (conv_mo stat.Gc.heap_words
) ^
591 Printf.sprintf
"lives = %d Mo\n" (conv_mo stat.Gc.live_words
)
592 (* Printf.printf "fragments = %d Mo\n" (conv_mo stat.Gc.fragments); *)
595 "sys:" ^
(string_of_float
(Sys.time
())) ^
" seconds" ^
597 (let tm = Unix.time
() +> Unix.gmtime
in
598 tm.Unix.tm_min
+> string_of_int ^
" min:" ^
599 tm.Unix.tm_sec
+> string_of_int ^
".00 seconds")
607 let count1 () = incr
_count1
608 let count2 () = incr
_count2
609 let count3 () = incr
_count3
610 let count4 () = incr
_count4
611 let count5 () = incr
_count5
613 let profile_diagnostic_basic () =
615 "count1 = %d\ncount2 = %d\ncount3 = %d\ncount4 = %d\ncount5 = %d\n"
616 !_count1 !_count2 !_count3 !_count4 !_count5
621 (* let _ = Timing () in *)
623 (* let _ = Timing () in *)
626 (* ---------------------------------------------------------------------- *)
628 type prof
= PALL
| PNONE
| PSOME
of string list
629 let profile = ref PNONE
630 let show_trace_profile = ref false
632 let check_profile category
=
636 | PSOME l
-> List.mem category l
638 let _profile_table = ref (Hashtbl.create
100)
640 let adjust_profile_entry category difftime
=
641 let (xtime
, xcount
) =
642 (try Hashtbl.find
!_profile_table category
644 let xtime = ref 0.0 in
645 let xcount = ref 0 in
646 Hashtbl.add
!_profile_table category
(xtime, xcount);
649 xtime := !xtime +. difftime
;
650 xcount := !xcount + 1;
653 let profile_start category
= failwith
"todo"
654 let profile_end category
= failwith
"todo"
657 (* subtil: don't forget to give all argumens to f, otherwise partial app
658 * and will profile nothing.
660 * todo: try also detect when complexity augment each time, so can
661 * detect the situation for a function gets worse and worse ?
663 let profile_code category f
=
664 if not
(check_profile category
)
667 if !show_trace_profile then pr2 (spf "p: %s" category
);
668 let t = Unix.gettimeofday
() in
671 with Timeout
-> None
, "*"
673 let category = prefix ^
category in (* add a '*' to indicate timeout func *)
674 let t'
= Unix.gettimeofday
() in
676 adjust_profile_entry category (t'
-. t);
679 | None
-> raise Timeout
684 let _is_in_exclusif = ref (None
: string option)
686 let profile_code_exclusif category f
=
687 if not
(check_profile category)
691 match !_is_in_exclusif with
693 failwith
(spf "profile_code_exclusif: %s but already in %s " category s);
695 _is_in_exclusif := (Some
category);
698 profile_code category f
701 _is_in_exclusif := None
706 let profile_code_inside_exclusif_ok category f
=
710 (* todo: also put % ? also add % to see if coherent numbers *)
711 let profile_diagnostic () =
712 if !profile = PNONE
then "" else
714 Hashtbl.fold
(fun k v acc
-> (k
,v
)::acc
) !_profile_table []
715 +> List.sort
(fun (k1
, (t1
,n1
)) (k2
, (t2
,n2
)) -> compare t2 t1
)
717 with_open_stringbuf
(fun (pr,_) ->
718 pr "---------------------";
719 pr "profiling result";
720 pr "---------------------";
721 xs +> List.iter
(fun (k
, (t,n)) ->
722 pr (sprintf
"%-40s : %10.3f sec %10d count" k
!t !n)
728 let report_if_take_time timethreshold
s f
=
729 let t = Unix.gettimeofday
() in
731 let t'
= Unix.gettimeofday
() in
732 if (t'
-. t > float_of_int timethreshold
)
733 then pr2 (sprintf
"Note: processing took %7.1fs: %s" (t'
-. t) s);
736 let profile_code2 category f
=
737 profile_code category (fun () ->
739 then pr2 ("starting: " ^
category);
740 let t = Unix.gettimeofday
() in
742 let t'
= Unix.gettimeofday
() in
744 then pr2 (spf "ending: %s, %fs" category (t'
-. t));
749 (*****************************************************************************)
751 (*****************************************************************************)
752 let example b
= assert b
754 let _ex1 = example (enum 1 4 = [1;2;3;4])
756 let assert_equal a b
=
758 then failwith
("assert_equal: those 2 values are not equal:\n\t" ^
759 (dump a
) ^
"\n\t" ^
(dump b
) ^
"\n")
761 let (example2
: string -> bool -> unit) = fun s b
->
762 try assert b
with x -> failwith
s
764 (*-------------------------------------------------------------------*)
765 let _list_bool = ref []
767 let (example3
: string -> bool -> unit) = fun s b
->
768 _list_bool := (s,b
)::(!_list_bool)
770 (* could introduce a fun () otherwise the calculus is made at compile time
771 * and this can be long. This would require to redefine test_all.
772 * let (example3: string -> (unit -> bool) -> unit) = fun s func ->
773 * _list_bool := (s,func):: (!_list_bool)
775 * I would like to do as a func that take 2 terms, and make an = over it
776 * avoid to add this ugly fun (), but pb of type, cant do that :(
780 let (test_all
: unit -> unit) = fun () ->
781 List.iter
(fun (s, b
) ->
782 Printf.printf
"%s: %s\n" s (if b
then "passed" else "failed")
785 let (test
: string -> unit) = fun s ->
786 Printf.printf
"%s: %s\n" s
787 (if (List.assoc
s (!_list_bool)) then "passed" else "failed")
789 let _ex = example3
"++" ([1;2]++[3;4;5] = [1;2;3;4;5])
791 (*-------------------------------------------------------------------*)
792 (* Regression testing *)
793 (*-------------------------------------------------------------------*)
795 (* cf end of file. It uses too many other common functions so I
796 * have put the code at the end of this file.
801 (* todo? take code from julien signoles in calendar-2.0.2/tests *)
804 (* Generic functions used in the tests. *)
806 val reset
: unit -> unit
807 val nb_ok
: unit -> int
808 val nb_bug
: unit -> int
809 val test
: bool -> string -> unit
810 val test_exn
: 'a
Lazy.t -> string -> unit
814 let ok () = incr
ok_ref
815 let nb_ok () = !ok_ref
818 let bug () = incr
bug_ref
819 let nb_bug () = !bug_ref
826 if x then ok () else begin Printf.printf
"%s\n" s; bug () end;;
830 ignore
(Lazy.force
x);
831 Printf.printf
"%s\n" s;
838 (*****************************************************************************)
839 (* Quickcheck like (sfl) *)
840 (*****************************************************************************)
842 (* Better than quickcheck, cos cant do a test_all_prop in haskell cos
843 * prop were functions, whereas here we have not prop_Unix x = ... but
846 * How to do without overloading ? objet ? can pass a generator as a
847 * parameter, mais lourd, prefer automatic inferring of the
848 * generator? But at the same time quickcheck does not do better cos
849 * we must explictly type the property. So between a
850 * prop_unit:: [Int] -> [Int] -> bool ...
851 * prop_unit x = reverse [x] == [x]
853 * let _ = laws "unit" (fun x -> reverse [x] = [x]) (listg intg)
854 * there is no real differences.
856 * Yes I define typeg generator but quickcheck too, he must define
857 * class instance. I emulate the context Gen a => Gen [a] by making
858 * listg take as a param a type generator. Moreover I have not the pb of
859 * monad. I can do random independently, so my code is more simple
860 * I think than the haskell code of quickcheck.
862 * update: apparently Jane Street have copied some of my code for their
863 * Ounit_util.ml and quichcheck.ml in their Core library :)
866 (*---------------------------------------------------------------------------*)
868 (*---------------------------------------------------------------------------*)
869 type 'a gen
= unit -> 'a
871 let (ig
: int gen
) = fun () ->
873 let (lg
: ('a gen
) -> ('a list
) gen
) = fun gen
() ->
874 foldn
(fun acc i
-> (gen
())::acc
) [] (Random.int 10)
875 let (pg
: ('a gen
) -> ('b gen
) -> ('a
* 'b
) gen
) = fun gen1 gen2
() ->
878 let (ng
: (string gen
)) = fun () ->
879 "a" ^
(string_of_int
(ig
()))
881 let (oneofl
: ('a list
) -> 'a gen
) = fun xs () ->
882 List.nth
xs (Random.int (List.length
xs))
883 (* let oneofl l = oneof (List.map always l) *)
885 let (oneof
: (('a gen
) list
) -> 'a gen
) = fun xs ->
886 List.nth
xs (Random.int (List.length
xs))
888 let (always
: 'a
-> 'a gen
) = fun e
() -> e
890 let (frequency
: ((int * ('a gen
)) list
) -> 'a gen
) = fun xs ->
891 let sums = sum_int (List.map fst
xs) in
892 let i = Random.int sums in
893 let rec freq_aux acc
= function
894 | (x,g
)::xs -> if i < acc
+x then g
else freq_aux (acc
+x) xs
895 | _ -> failwith
"frequency"
898 let frequencyl l
= frequency
(List.map
(fun (i,e
) -> (i,always e
)) l
)
901 let b = oneof [always true; always false] ()
902 let b = frequency [3, always true; 2, always false] ()
906 * let rec (lg: ('a gen) -> ('a list) gen) = fun gen -> oneofl [[]; lg gen ()]
908 * let rec (lg: ('a gen) -> ('a list) gen) = fun gen -> oneof [always []; lg gen]
910 * because caml is not as lazy as haskell :( fix the pb by introducing a size
911 * limit. take the bounds/size as parameter. morover this is needed for
914 * how make a bintreeg ?? we need recursion
916 * let rec (bintreeg: ('a gen) -> ('a bintree) gen) = fun gen () ->
918 * if n = 0 then (Leaf (gen ()))
919 * else frequencyl [1, Leaf (gen ()); 4, Branch ((aux (n / 2)), aux (n / 2))]
926 (*---------------------------------------------------------------------------*)
928 (*---------------------------------------------------------------------------*)
930 (* todo: a test_all_laws, better syntax (done already a little with ig in
931 * place of intg. En cas d'erreur, print the arg that not respect
933 * todo: with monitoring, as in haskell, laws = laws2, no need for 2 func,
936 * todo classify, collect, forall
940 (* return None when good, and Just the_problematic_case when bad *)
941 let (laws
: string -> ('a
-> bool) -> ('a gen
) -> 'a
option) = fun s func gen
->
942 let res = foldn
(fun acc
i -> let n = gen
() in (n, func
n)::acc
) [] 1000 in
943 let res = List.filter
(fun (x,b) -> not
b) res in
944 if res = [] then None
else Some
(fst
(List.hd
res))
946 let rec (statistic_number
: ('a list
) -> (int * 'a
) list
) = function
948 | x::xs -> let (splitg
, splitd
) = List.partition
(fun y
-> y
= x) xs in
949 (1+(List.length splitg
), x)::(statistic_number splitd
)
952 let (statistic
: ('a list
) -> (int * 'a
) list
) = fun xs ->
953 let stat_num = statistic_number
xs in
954 let totals = sum_int (List.map fst
stat_num) in
955 List.map
(fun (i, v
) -> ((i * 100) / totals), v
) stat_num
958 string -> ('a
-> (bool * '
b)) -> ('a gen
) ->
959 ('a
option * ((int * '
b) list
))) =
961 let res = foldn
(fun acc
i -> let n = gen
() in (n, func
n)::acc
) [] 1000 in
962 let stat = statistic
(List.map
(fun (x,(b,v
)) -> v
) res) in
963 let res = List.filter
(fun (x,(b,v
)) -> not
b) res in
964 if res = [] then (None
, stat) else (Some
(fst
(List.hd
res)), stat)
968 let b = laws "unit" (fun x -> reverse [x] = [x] )ig
969 let b = laws "app " (fun (xs,ys) -> reverse (xs++ys) = reverse ys++reverse xs)(pg (lg ig)(lg ig))
970 let b = laws "rev " (fun xs -> reverse (reverse xs) = xs )(lg ig)
971 let b = laws "appb" (fun (xs,ys) -> reverse (xs++ys) = reverse xs++reverse ys)(pg (lg ig)(lg ig))
972 let b = laws "max" (fun (x,y) -> x <= y ==> (max x y = y) )(pg ig ig)
974 let b = laws2 "max" (fun (x,y) -> ((x <= y ==> (max x y = y)), x <= y))(pg ig ig)
978 (* todo, do with coarbitrary ?? idea is that given a 'a, generate a 'b
979 * depending of 'a and gen 'b, that is modify gen 'b, what is important is
980 * that each time given the same 'a, we must get the same 'b !!!
984 let (fg: ('a gen) -> ('b gen) -> ('a -> 'b) gen) = fun gen1 gen2 () ->
985 let b = laws "funs" (fun (f,g,h) -> x <= y ==> (max x y = y) )(pg ig ig)
989 let one_of xs = List.nth xs (Random.int (List.length xs))
991 if empty xs then failwith "Take_one: empty list"
993 let i = Random.int (List.length xs) in
994 List.nth xs i, filter_index (fun j _ -> i <> j) xs
997 (*****************************************************************************)
999 (*****************************************************************************)
1001 let get_value filename =
1002 let chan = open_in
filename in
1003 let x = input_value
chan in (* <=> Marshal.from_channel *)
1006 let write_value valu
filename =
1007 let chan = open_out
filename in
1008 (output_value
chan valu
; (* <=> Marshal.to_channel *)
1009 (* Marshal.to_channel chan valu [Marshal.Closures]; *)
1012 let write_back func
filename =
1013 write_value (func
(get_value filename)) filename
1016 let read_value f
= get_value f
1019 let marshal__to_string2 v flags
=
1020 Marshal.to_string v flags
1021 let marshal__to_string a
b =
1022 profile_code "Marshalling" (fun () -> marshal__to_string2 a
b)
1024 let marshal__from_string2 v flags
=
1025 Marshal.from_string v flags
1026 let marshal__from_string a
b =
1027 profile_code "Marshalling" (fun () -> marshal__from_string2 a
b)
1031 (*****************************************************************************)
1033 (*****************************************************************************)
1034 let _counter = ref 0
1035 let counter () = (_counter := !_counter +1; !_counter)
1037 let _counter2 = ref 0
1038 let counter2 () = (_counter2 := !_counter2 +1; !_counter2)
1040 let _counter3 = ref 0
1041 let counter3 () = (_counter3 := !_counter3 +1; !_counter3)
1043 type timestamp
= int
1045 (*****************************************************************************)
1047 (*****************************************************************************)
1048 (* To work with the macro system autogenerated string_of and print_ function
1049 (kind of deriving a la haskell) *)
1051 (* int, bool, char, float, ref ?, string *)
1053 let string_of_string s = "\"" ^
s "\""
1055 let string_of_list f
xs =
1056 "[" ^
(xs +> List.map f
+> String.concat
";" ) ^
"]"
1058 let string_of_unit () = "()"
1060 let string_of_array f
xs =
1061 "[|" ^
(xs +> Array.to_list
+> List.map f
+> String.concat
";") ^
"|]"
1063 let string_of_option f
= function
1065 | Some
x -> "Some " ^
(f
x)
1070 let print_bool x = print_string
(if x then "True" else "False")
1072 let print_option pr = function
1073 | None
-> print_string
"None"
1074 | Some
x -> print_string
"Some ("; pr x; print_string
")"
1076 let print_list pr xs =
1079 List.iter
(fun x -> pr x; print_string
",") xs;
1084 let (string_of_list: char list -> string) =
1085 List.fold_left (fun acc x -> acc^(Char.escaped x)) ""
1089 let rec print_between between fn
= function
1092 | x::xs -> fn
x; between
(); print_between between fn
xs
1097 let adjust_pp_with_indent f
=
1098 Format.open_box
!_tab_level_print;
1099 (*Format.force_newline();*)
1101 Format.close_box
();
1102 Format.print_newline
()
1104 let adjust_pp_with_indent_and_header s f
=
1105 Format.open_box
(!_tab_level_print + String.length
s);
1106 do_n
!_tab_level_print (fun () -> Format.print_string
" ");
1107 Format.print_string
s;
1109 Format.close_box
();
1110 Format.print_newline
()
1114 let pp_do_in_box f
= Format.open_box
1; f
(); Format.close_box
()
1115 let pp_do_in_zero_box f
= Format.open_box
0; f
(); Format.close_box
()
1120 Format.close_box
();
1123 let pp s = Format.print_string
s
1125 let mk_str_func_of_assoc_conv xs =
1126 let swap (x,y
) = (y
,x) in
1129 let xs'
= List.map
swap xs in
1138 (* julia: convert something printed using format to print into a string *)
1139 (* now at bottom of file
1140 let format_to_string f =
1146 (*****************************************************************************)
1148 (*****************************************************************************)
1150 (* put your macro in macro.ml4, and you can test it interactivly as in lisp *)
1151 let macro_expand s =
1152 let c = open_out
"/tmp/ttttt.ml" in
1154 output_string
c s; close_out
c;
1155 command2 ("ocamlc -c -pp 'camlp4o pa_extend.cmo q_MLast.cmo -impl' " ^
1156 "-I +camlp4 -impl macro.ml4");
1157 command2 "camlp4o ./macro.cmo pr_o.cmo /tmp/ttttt.ml";
1158 command2 "rm -f /tmp/ttttt.ml";
1162 let t = macro_expand "{ x + y | (x,y) <- [(1,1);(2,2);(3,3)] and x>2 and y<3}"
1163 let x = { x + y | (x,y) <- [(1,1);(2,2);(3,3)] and x > 2 and y < 3}
1164 let t = macro_expand "{1 .. 10}"
1165 let x = {1 .. 10} +> List.map (fun i -> i)
1166 let t = macro_expand "[1;2] to append to [2;4]"
1167 let t = macro_expand "{x = 2; x = 3}"
1169 let t = macro_expand "type 'a bintree = Leaf of 'a | Branch of ('a bintree * 'a bintree)"
1174 (*****************************************************************************)
1175 (* Composition/Control *)
1176 (*****************************************************************************)
1178 (* I like the obj.func object notation. In OCaml cant use '.' so I use +>
1180 * update: it seems that F# agrees with me :) but they use |>
1184 * let (+>) o f = f o
1186 let (+!>) refo f
= refo
:= f
!refo
1188 * let ((@): 'a -> ('a -> 'b) -> 'b) = fun a b -> b a
1189 * let o f g x = f (g x)
1192 let ($
) f g
x = g
(f
x)
1193 let compose f g
x = f
(g
x)
1194 (* dont work :( let ( ° ) f g x = f(g(x)) *)
1196 (* trick to have something similar to the 1 `max` 4 haskell infix notation.
1197 by Keisuke Nakano on the caml mailing list.
1198 > let ( /* ) x y = y x
1199 > and ( */ ) x y = x y
1201 let ( <| ) x y = y x
1202 and ( |> ) x y = x y
1204 > Then we can make an infix operator <| f |> for a binary function f.
1207 let flip f
= fun a
b -> f
b a
1209 let curry f
x y
= f
(x,y
)
1210 let uncurry f
(a
,b) = f a
b
1214 let do_nothing () = ()
1216 let rec applyn n f
o = if n = 0 then o else applyn (n-1) f
(f
o)
1224 class ['a
] shared_variable_hook
(x:'a
) =
1226 val mutable data
= x
1227 val mutable registered
= []
1231 pr "refresh registered";
1232 registered
+> List.iter
(fun f
-> f
());
1235 method modify f
= self#set
(f self#get
)
1237 registered
<- f
:: registered
1240 (* src: from aop project. was called ptFix *)
1241 let rec fixpoint trans elem
=
1242 let image = trans elem
in
1244 then elem
(* point fixe *)
1245 else fixpoint trans
image
1247 (* le point fixe pour les objets. was called ptFixForObjetct *)
1248 let rec fixpoint_for_object trans elem
=
1249 let image = trans elem
in
1250 if (image#equal elem
) then elem
(* point fixe *)
1251 else fixpoint_for_object trans
image
1253 let (add_hook
: ('a
-> ('a
-> '
b) -> '
b) ref -> ('a
-> ('a
-> '
b) -> '
b) -> unit) =
1255 let oldvar = !var
in
1256 var
:= fun arg k
-> f arg
(fun x -> oldvar x k
)
1258 let (add_hook_action
: ('a
-> unit) -> ('a
-> unit) list
ref -> unit) =
1262 let (run_hooks_action
: 'a
-> ('a
-> unit) list
ref -> unit) =
1264 !hooks
+> List.iter
(fun f
-> try f obj
with _ -> ())
1267 type 'a mylazy
= (unit -> 'a
)
1270 let save_excursion reference f
=
1271 let old = !reference
in
1272 let res = try f
() with e
-> reference
:= old; raise e
in
1276 let save_excursion_and_disable reference f
=
1277 save_excursion reference
(fun () ->
1282 let save_excursion_and_enable reference f
=
1283 save_excursion reference
(fun () ->
1289 let memoized h k f
=
1290 try Hashtbl.find
h k
1298 let cache_in_ref myref f
=
1307 let already = ref false in
1310 then begin already := true; f
x end
1313 (* cache_file, cf below *)
1315 let before_leaving f
x =
1319 (* finalize, cf prelude *)
1323 let rec y f
= fun x -> f
(y f
) x
1325 (*****************************************************************************)
1327 (*****************************************************************************)
1329 (* from http://en.wikipedia.org/wiki/File_locking
1331 * "When using file locks, care must be taken to ensure that operations
1332 * are atomic. When creating the lock, the process must verify that it
1333 * does not exist and then create it, but without allowing another
1334 * process the opportunity to create it in the meantime. Various
1335 * schemes are used to implement this, such as taking advantage of
1336 * system calls designed for this purpose (but such system calls are
1337 * not usually available to shell scripts) or by creating the lock file
1338 * under a temporary name and then attempting to move it into place."
1340 * => can't use 'if(not (file_exist xxx)) then create_file xxx' because
1341 * file_exist/create_file are not in atomic section (classic problem).
1345 * "O_EXCL When used with O_CREAT, if the file already exists it
1346 * is an error and the open() will fail. In this context, a
1347 * symbolic link exists, regardless of where it points to.
1348 * O_EXCL is broken on NFS file systems; programs which
1349 * rely on it for performing locking tasks will contain a
1350 * race condition. The solution for performing atomic file
1351 * locking using a lockfile is to create a unique file on
1352 * the same file system (e.g., incorporating host- name and
1353 * pid), use link(2) to make a link to the lockfile. If
1354 * link(2) returns 0, the lock is successful. Otherwise,
1355 * use stat(2) on the unique file to check if its link
1356 * count has increased to 2, in which case the lock is also
1361 exception FileAlreadyLocked
1363 (* Racy if lock file on NFS!!! But still racy with recent Linux ? *)
1364 let acquire_file_lock filename =
1365 pr2 ("Locking file: " ^
filename);
1367 let _fd = Unix.openfile
filename [Unix.O_CREAT
;Unix.O_EXCL
] 0o777
in
1369 with Unix.Unix_error
(e, fm
, argm
) ->
1370 pr2 (spf "exn Unix_error: %s %s %s\n" (Unix.error_message
e) fm argm
);
1371 raise FileAlreadyLocked
1374 let release_file_lock filename =
1375 pr2 ("Releasing file: " ^
filename);
1376 Unix.unlink
filename;
1381 (*****************************************************************************)
1382 (* Error managment *)
1383 (*****************************************************************************)
1386 exception Impossible
1390 exception Multi_found
(* to be consistent with Not_found *)
1392 exception WrongFormat
of string
1394 (* old: let _TODO () = failwith "TODO", now via fix_caml with raise Todo *)
1396 let internal_error s = failwith
("internal error: "^
s)
1397 let error_cant_have x = internal_error ("cant have this case: " ^
(dump x))
1398 let myassert cond
= if cond
then () else failwith
"assert error"
1402 (* before warning I was forced to do stuff like this:
1404 * let (fixed_int_to_posmap: fixed_int -> posmap) = fun fixed ->
1405 * let v = ((fix_to_i fixed) / (power 2 16)) in
1406 * let _ = Printf.printf "coord xy = %d\n" v in
1409 * The need for printf make me force to name stuff :(
1410 * How avoid ? use 'it' special keyword ?
1411 * In fact dont have to name it, use +> (fun v -> ...) so when want
1412 * erase debug just have to erase one line.
1414 let warning s v = (pr2 ("Warning: " ^
s ^
"; value = " ^
(dump v)); v)
1420 Printexc.to_string exn
1423 let string_of_exn exn
= exn_to_s exn
1426 (* want or of merd, but cant cos cant put die ... in b (strict call) *)
1427 let (|||) a
b = try a
with _ -> b
1429 (* emacs/lisp inspiration, (vouillon does that too in unison I think) *)
1432 * let unwind_protect f cleanup = ...
1433 * let finalize f cleanup = ...
1436 type error
= Error
of string
1438 (* sometimes to get help from ocaml compiler to tell me places where
1439 * I should update, we sometimes need to change some type from pair
1440 * to triple, hence this kind of fake type.
1445 (*****************************************************************************)
1447 (*****************************************************************************)
1449 let check_stack = ref true
1450 let check_stack_size limit
=
1451 if !check_stack then begin
1452 pr2 "checking stack size (do ulimit -s 50000 if problem)";
1456 else 1 + aux (i + 1)
1458 assert(aux 0 = limit
);
1462 let test_check_stack_size limit
=
1463 (* bytecode: 100000000 *)
1464 (* native: 10000000 *)
1465 check_stack_size (int_of_string limit
)
1468 (* only relevant in bytecode, in native the stacklimit is the os stacklimit
1469 * (adjustable by ulimit -s)
1471 let _init_gc_stack =
1472 Gc.set
{(Gc.get
()) with Gc.stack_limit
= 100 * 1024 * 1024}
1477 (* if process a big set of files then dont want get overflow in the middle
1478 * so for this we are ready to spend some extra time at the beginning that
1479 * could save far more later.
1481 let check_stack_nbfiles nbfiles
=
1483 then check_stack_size 10000000
1485 (*****************************************************************************)
1486 (* Arguments/options and command line (cocci and acomment) *)
1487 (*****************************************************************************)
1490 * Why define wrappers ? Arg not good enough ? Well the Arg.Rest is not that
1491 * good and I need a way sometimes to get a list of argument.
1493 * I could define maybe a new Arg.spec such as
1494 * | String_list of (string list -> unit), but the action may require
1495 * some flags to be set, so better to process this after all flags have
1496 * been set by parse_options. So have to split. Otherwise it would impose
1497 * an order of the options such as
1498 * -verbose_parsing -parse_c file1 file2. and I really like to use bash
1499 * history and add just at the end of my command a -profile for instance.
1502 * Why want a -action arg1 arg2 arg3 ? (which in turn requires this
1503 * convulated scheme ...) Why not use Arg.String action such as
1504 * "-parse_c", Arg.String (fun file -> ...) ?
1505 * I want something that looks like ocaml function but at the UNIX
1506 * command line level. So natural to have this scheme instead of
1507 * -taxo_file arg2 -sample_file arg3 -parse_c arg1.
1510 * Why not use the toplevel ?
1511 * - because to debug, ocamldebug is far superior to the toplevel
1512 * (can go back, can go directly to a specific point, etc).
1513 * I want a kind of testing at cmdline level.
1514 * - Also I don't have file completion when in the ocaml toplevel.
1515 * I have to type "/path/to/xxx" without help.
1518 * Why having variable flags ? Why use 'if !verbose_parsing then ...' ?
1519 * why not use strings and do stuff like the following
1520 * 'if (get_config "verbose_parsing") then ...'
1521 * Because I want to make the interface for flags easier for the code
1522 * that use it. The programmer should not be bothered wether this
1523 * flag is set via args cmd line or a config file, so I want to make it
1524 * as simple as possible, just use a global plain caml ref variable.
1526 * Same spirit a little for the action. Instead of having function such as
1527 * test_parsing_c, I could do it only via string. But I still prefer
1528 * to have plain caml test functions. Also it makes it easier to call
1529 * those functions from a toplevel for people who prefer the toplevel.
1532 * So have flag_spec and action_spec. And in flag have debug_xxx flags,
1533 * verbose_xxx flags and other flags.
1535 * I would like to not have to separate the -xxx actions spec from the
1536 * corresponding actions, but those actions may need more than one argument
1537 * and so have to wait for parse_options, which in turn need the options
1540 * Also I dont want to mix code with data structures, so it's better that the
1541 * options variable contain just a few stuff and have no side effects except
1542 * setting global variables.
1544 * Why not have a global variable such as Common.actions that
1545 * other modules modify ? No, I prefer to do less stuff behind programmer's
1546 * back so better to let the user merge the different options at call
1547 * site, but at least make it easier by providing shortcut for set of options.
1552 * todo? isn't unison or scott-mcpeak-lib-in-cil handles that kind of
1553 * stuff better ? That is the need to localize command line argument
1554 * while still being able to gathering them. Same for logging.
1555 * Similiar to the type prof = PALL | PNONE | PSOME of string list.
1556 * Same spirit of fine grain config in log4j ?
1558 * todo? how mercurial/cvs/git manage command line options ? because they
1559 * all have a kind of DSL around arguments with some common options,
1560 * specific options, conventions, etc.
1563 * todo? generate the corresponding noxxx options ?
1564 * todo? generate list of options and show their value ?
1566 * todo? make it possible to set this value via a config file ?
1571 type arg_spec_full
= Arg.key
* Arg.spec
* Arg.doc
1572 type cmdline_options
= arg_spec_full list
1574 (* the format is a list of triples:
1575 * (title of section * (optional) explanation of sections * options)
1577 type options_with_title
= string * string * arg_spec_full list
1578 type cmdline_sections
= options_with_title list
1581 (* ---------------------------------------------------------------------- *)
1583 (* now I use argv as I like at the call sites to show that
1584 * this function internally use argv.
1586 let parse_options options usage_msg argv
=
1587 let args = ref [] in
1589 Arg.parse_argv argv options
(fun file
-> args := file
::!args) usage_msg
;
1590 args := List.rev
!args;
1593 | Arg.Bad msg
-> eprintf
"%s" msg
; exit
2
1594 | Arg.Help msg
-> printf
"%s" msg
; exit
0
1600 let usage usage_msg options
=
1601 Arg.usage (Arg.align options
) usage_msg
1604 (* for coccinelle *)
1606 (* If you don't want the -help and --help that are appended by Arg.align *)
1608 Arg.align
xs +> List.rev
+> drop 2 +> List.rev
1611 let short_usage usage_msg ~short_opt
=
1612 usage usage_msg short_opt
1614 let long_usage usage_msg ~short_opt ~long_opt
=
1617 let all_options_with_title =
1618 (("main options", "", short_opt
)::long_opt
) in
1619 all_options_with_title +> List.iter
1620 (fun (title
, explanations
, xs) ->
1622 pr_xxxxxxxxxxxxxxxxx();
1623 if explanations
<> ""
1624 then begin pr explanations
; pr "" end;
1625 arg_align2 xs +> List.iter
(fun (key
,action
,s) ->
1633 (* copy paste of Arg.parse. Don't want the default -help msg *)
1634 let arg_parse2 l msg short_usage_fun
=
1635 let args = ref [] in
1636 let f = (fun file
-> args := file
::!args) in
1637 let l = Arg.align
l in
1639 Arg.parse_argv
Sys.argv
l f msg
;
1640 args := List.rev
!args;
1644 | Arg.Bad msg
-> (* eprintf "%s" msg; exit 2; *)
1645 let xs = lines msg
in
1646 (* take only head, it's where the error msg is *)
1649 raise
(UnixExit
(2))
1650 | Arg.Help msg
-> (* printf "%s" msg; exit 0; *)
1651 raise Impossible
(* -help is specified in speclist *)
1655 (* ---------------------------------------------------------------------- *)
1656 (* kind of unit testing framework, or toplevel like functionnality
1657 * at shell command line. I realize than in fact It follows a current trend
1658 * to have a main cmdline program where can then select different actions,
1659 * as in cvs/hg/git where do hg <action> <arguments>, and the shell even
1660 * use a curried syntax :)
1663 * Not-perfect-but-basic-feels-right: an action
1664 * spec looks like this:
1666 * let actions () = [
1667 * "-parse_taxo", " <file>",
1668 * Common.mk_action_1_arg test_parse_taxo;
1672 * Not-perfect-but-basic-feels-right because for such functionality we
1673 * need a way to transform a string into a caml function and pass arguments
1674 * and the preceding design does exactly that, even if then the
1675 * functions that use this design are not so convenient to use (there
1676 * are 2 places where we need to pass those data, in the options and in the
1679 * Also it's not too much intrusive. Still have an
1680 * action ref variable in the main.ml and can still use the previous
1681 * simpler way to do where the match args with in main.ml do the
1684 * Use like this at option place:
1685 * (Common.options_of_actions actionref (Test_parsing_c.actions())) ++
1686 * Use like this at dispatch action place:
1687 * | xs when List.mem !action (Common.action_list all_actions) ->
1688 * Common.do_action !action xs all_actions
1692 type flag_spec
= Arg.key
* Arg.spec
* Arg.doc
1693 type action_spec
= Arg.key
* Arg.doc
* action_func
1694 and action_func
= (string list
-> unit)
1696 type cmdline_actions
= action_spec list
1697 exception WrongNumberOfArguments
1699 let options_of_actions action_ref
actions =
1700 actions +> List.map
(fun (key
, doc
, _func
) ->
1701 (key
, (Arg.Unit
(fun () -> action_ref
:= key
)), doc
)
1704 let (action_list
: cmdline_actions
-> Arg.key list
) = fun xs ->
1705 List.map
(fun (a
,b,c) -> a
) xs
1707 let (do_action
: Arg.key
-> string list
(* args *) -> cmdline_actions
-> unit) =
1709 let assoc = xs +> List.map
(fun (a
,b,c) -> (a
,c)) in
1710 let action_func = List.assoc key
assoc in
1714 (* todo? if have a function with default argument ? would like a
1715 * mk_action_0_or_1_arg ?
1718 let mk_action_0_arg f =
1721 | _ -> raise WrongNumberOfArguments
1724 let mk_action_1_arg f =
1727 | _ -> raise WrongNumberOfArguments
1730 let mk_action_2_arg f =
1732 | [file1
;file2
] -> f file1 file2
1733 | _ -> raise WrongNumberOfArguments
1736 let mk_action_3_arg f =
1738 | [file1
;file2
;file3
] -> f file1 file2 file3
1739 | _ -> raise WrongNumberOfArguments
1742 let mk_action_n_arg f = f
1745 (*****************************************************************************)
1747 (*****************************************************************************)
1749 (* Using the generic (=) is tempting, but it backfires, so better avoid it *)
1751 (* To infer all the code that use an equal, and that should be
1752 * transformed, is not that easy, because (=) is used by many
1753 * functions, such as List.find, List.mem, and so on. So the strategy
1754 * is to turn what you were previously using into a function, because
1755 * (=) return an exception when applied to a function. Then you simply
1756 * use ocamldebug to infer where the code has to be transformed.
1759 (* src: caml mailing list ? *)
1760 let (=|=) : int -> int -> bool = (=)
1761 let (=<=) : char
-> char
-> bool = (=)
1762 let (=$
=) : string -> string -> bool = (=)
1763 let (=:=) : bool -> bool -> bool = (=)
1765 (* the evil generic (=). I define another symbol to more easily detect
1766 * it, cos the '=' sign is syntaxically overloaded in caml. It is also
1767 * used to define function.
1771 (* if really want to forbid to use '='
1774 let (=) () () = false
1783 (*###########################################################################*)
1784 (* And now basic types *)
1785 (*###########################################################################*)
1789 (*****************************************************************************)
1791 (*****************************************************************************)
1792 let (==>) b1 b2
= if b1
then b2
else true (* could use too => *)
1794 (* superseded by another <=> below
1795 let (<=>) a b = if a =*= b then 0 else if a < b then -1 else 1
1798 let xor a
b = not
(a
=*= b)
1801 (*****************************************************************************)
1803 (*****************************************************************************)
1805 let string_of_char c = String.make
1 c
1807 let is_single = String.contains
",;()[]{}_`"
1808 let is_symbol = String.contains
"!@#$%&*+./<=>?\\^|:-~"
1809 let is_space = String.contains
"\n\t "
1810 let cbetween min max
c =
1811 (int_of_char
c) <= (int_of_char max
) &&
1812 (int_of_char
c) >= (int_of_char min
)
1813 let is_upper = cbetween 'A' 'Z'
1814 let is_lower = cbetween 'a' 'z'
1815 let is_alpha c = is_upper c || is_lower c
1816 let is_digit = cbetween '
0' '
9'
1818 let string_of_chars cs
= cs
+> List.map
(String.make
1) +> String.concat
""
1822 (*****************************************************************************)
1824 (*****************************************************************************)
1826 (* since 3.08, div by 0 raise Div_by_rezo, and not anymore a hardware trap :)*)
1827 let (/!) x y = if y =|= 0 then (log "common.ml: div by 0"; 0) else x / y
1830 * let rec (do_n: int -> (unit -> unit) -> unit) = fun i f ->
1831 * if i = 0 then () else (f(); do_n (i-1) f)
1835 * let rec (foldn: ('a -> int -> 'a) -> 'a -> int -> 'a) = fun f acc i ->
1836 * if i = 0 then acc else foldn f (f acc i) (i-1)
1839 let sum_float = List.fold_left
(+.) 0.0
1840 let sum_int = List.fold_left
(+) 0
1842 let pi = 3.14159265358979323846
1847 let (deg_to_rad
: float -> float) = fun deg
->
1848 (deg
*. pi) /. 180.0
1850 let clampf = function
1851 | n when n < 0.0 -> 0.0
1852 | n when n > 1.0 -> 1.0
1855 let square x = x *. x
1857 let rec power x n = if n =|= 0 then 1 else x * power x (n-1)
1859 let between i min max
= i > min
&& i < max
1861 let (between_strict
: int -> int -> int -> bool) = fun a
b c ->
1865 let bitrange x p
= let v = power 2 p
in between x (-v) v
1868 let (prime1
: int -> int option) = fun x ->
1869 let rec prime1_aux n =
1870 if n =|= 1 then None
1872 if (x / n) * n =|= x then Some
n else prime1_aux (n-1)
1873 in if x =|= 1 then None
else if x < 0 then failwith
"negative" else prime1_aux (x-1)
1875 (* montant, better *)
1876 let (prime
: int -> int option) = fun x ->
1877 let rec prime_aux n =
1878 if n =|= x then None
1880 if (x / n) * n =|= x then Some
n else prime_aux (n+1)
1881 in if x =|= 1 then None
else if x < 0 then failwith
"negative" else prime_aux 2
1883 let sum xs = List.fold_left
(+) 0 xs
1884 let product = List.fold_left
( * ) 1
1888 let rec decompose x =
1893 | Some
n -> n::decompose (x / n)
1895 in assert (product (decompose x) =|= x); decompose x
1897 let mysquare x = x * x
1901 type compare
= Equal
| Inf
| Sup
1902 let (<=>) a
b = if a
=*= b then Equal
else if a
< b then Inf
else Sup
1903 let (<==>) a
b = if a
=*= b then 0 else if a
< b then -1 else 1
1908 let int_of_stringchar s =
1909 fold_left_with_index (fun acc
e i -> acc
+ (Char.code
e*(power 8 i))) 0 (List.rev
(list_of_string
s))
1911 let int_of_base s base
=
1912 fold_left_with_index (fun acc
e i ->
1913 let j = Char.code
e - Char.code '
0'
in
1914 if j >= base
then failwith
"not in good base"
1915 else acc
+ (j*(power base
i))
1917 0 (List.rev
(list_of_string
s))
1919 let int_of_stringbits s = int_of_base s 2
1920 let _ = example (int_of_stringbits "1011" =|= 1*8 + 1*2 + 1*1)
1922 let int_of_octal s = int_of_base s 8
1923 let _ = example (int_of_octal "017" =|= 15)
1925 (* let int_of_hex s = int_of_base s 16, NONONONO cos 'A' - '0' does not give 10 !! *)
1928 if String.length
s >= 2 && (String.get
s 0 =<= '
0'
) && is_digit (String.get
s 1)
1929 then int_of_octal s else int_of_string
s
1932 let (+=) ref v = ref := !ref + v
1933 let (-=) ref v = ref := !ref - v
1935 let pourcent x total
=
1937 let pourcent_float x total
=
1938 ((float_of_int
x) *. 100.0) /. (float_of_int total
)
1940 let pourcent_float_of_floats x total
=
1941 (x *. 100.0) /. total
1944 let pourcent_good_bad good bad
=
1945 (good
* 100) / (good
+ bad
)
1947 let pourcent_good_bad_float good bad
=
1948 (float_of_int good
*. 100.0) /. (float_of_int good
+. float_of_int bad
)
1950 type 'a max_with_elem
= int ref * 'a
ref
1951 let update_max_with_elem (aref
, aelem
) ~is_better
(newv
, newelem
) =
1952 if is_better newv aref
1958 (*****************************************************************************)
1959 (* Numeric/overloading *)
1960 (*****************************************************************************)
1963 NumDict
of (('a
-> 'a
-> 'a
) *
1968 let add (NumDict
(a
, m
, d
, n)) = a
;;
1969 let mul (NumDict
(a
, m
, d
, n)) = m
;;
1970 let div (NumDict
(a
, m
, d
, n)) = d
;;
1971 let neg (NumDict
(a
, m
, d
, n)) = n;;
1973 let numd_int = NumDict
(( + ),( * ),( / ),( ~
- ));;
1974 let numd_float = NumDict
(( +. ),( *. ), ( /. ),( ~
-. ));;
1976 let ( * ) x y = mul dict
x y in
1977 let ( / ) x y = div dict
x y in
1978 let ( + ) x y = add dict
x y in
1979 (* Now you can define all sorts of things in terms of *, /, + *)
1980 let f num
= (num
* num
) / (num
+ num
) in
1985 module ArithFloatInfix
= struct
1997 let (+=) ref v = ref := !ref + v
1998 let (-=) ref v = ref := !ref - v
2004 (*****************************************************************************)
2006 (*****************************************************************************)
2008 type 'a pair
= 'a
* 'a
2009 type 'a triple
= 'a
* 'a
* 'a
2011 let fst3 (x,_,_) = x
2012 let snd3 (_,y,_) = y
2013 let thd3 (_,_,z
) = z
2015 let sndthd (a
,b,c) = (b,c)
2017 let map_fst f (x, y) = f x, y
2018 let map_snd f (x, y) = x, f y
2020 let pair f (x,y) = (f x, f y)
2022 (* for my ocamlbeautify script *)
2027 let swap (x,y) = (y,x)
2030 let tuple_of_list1 = function [a
] -> a
| _ -> failwith
"tuple_of_list1"
2031 let tuple_of_list2 = function [a
;b] -> a
,b | _ -> failwith
"tuple_of_list2"
2032 let tuple_of_list3 = function [a
;b;c] -> a
,b,c | _ -> failwith
"tuple_of_list3"
2033 let tuple_of_list4 = function [a
;b;c;d
] -> a
,b,c,d
| _ -> failwith
"tuple_of_list4"
2034 let tuple_of_list5 = function [a
;b;c;d
;e] -> a
,b,c,d
,e | _ -> failwith
"tuple_of_list5"
2035 let tuple_of_list6 = function [a
;b;c;d
;e;f] -> a
,b,c,d
,e,f | _ -> failwith
"tuple_of_list6"
2038 (*****************************************************************************)
2040 (*****************************************************************************)
2042 (* type 'a maybe = Just of 'a | None *)
2044 type ('a
,'
b) either
= Left
of 'a
| Right
of '
b
2046 type ('a
, '
b, '
c) either3
= Left3
of 'a
| Middle3
of '
b | Right3
of '
c
2051 | _ -> failwith
"just: pb"
2056 let fmap f = function
2058 | Some
x -> Some
(f x)
2059 let map_option = fmap
2061 let do_option f = function
2066 try Some
(f ()) with Not_found
-> None
2071 let some_or = function
2073 | Some
e -> fun _ -> e
2076 let partition_either f l =
2077 let rec part_either left right
= function
2078 | [] -> (List.rev left
, List.rev right
)
2081 | Left
e -> part_either (e :: left
) right
l
2082 | Right
e -> part_either left
(e :: right
) l) in
2085 let partition_either3 f l =
2086 let rec part_either left middle right
= function
2087 | [] -> (List.rev left
, List.rev middle
, List.rev right
)
2090 | Left3
e -> part_either (e :: left
) middle right
l
2091 | Middle3
e -> part_either left
(e :: middle
) right
l
2092 | Right3
e -> part_either left middle
(e :: right
) l) in
2093 part_either [] [] [] l
2097 let rec filter_some = function
2099 | None
:: l -> filter_some l
2100 | Some
e :: l -> e :: filter_some l
2102 let map_filter f xs = xs +> List.map
f +> filter_some
2104 (* avoid recursion *)
2105 let tail_map_filter f xs =
2115 let rec find_some p
= function
2116 | [] -> raise Not_found
2120 | None
-> find_some p
l
2124 xs +> List.map f +> List.find (function Some x -> true | None -> false)
2125 +> (function Some x -> x | None -> raise Impossible)
2129 let list_to_single_or_exn xs =
2131 | [] -> raise Not_found
2132 | x::y::zs
-> raise Multi_found
2135 (*****************************************************************************)
2137 (*****************************************************************************)
2139 type bool3
= True3
| False3
| TrueFalsePb3
of string
2143 (*****************************************************************************)
2144 (* Regexp, can also use PCRE *)
2145 (*****************************************************************************)
2147 (* Note: OCaml Str regexps are different from Perl regexp:
2148 * - The OCaml regexp must match the entire way.
2149 * So "testBee" =~ "Bee" is wrong
2150 * but "testBee" =~ ".*Bee" is right
2151 * Can have the perl behavior if use Str.search_forward instead of
2153 * - Must add some additional \ in front of some special char. So use
2154 * \\( \\| and also \\b
2155 * - It does not always handle newlines very well.
2156 * - \\b does consider _ but not numbers in indentifiers.
2158 * Note: PCRE regexps are then different from Str regexps ...
2159 * - just use '(' ')' for grouping, not '\\)'
2160 * - still need \\b for word boundary, but this time it works ...
2161 * so can match some word that have some digits in them.
2165 (* put before String section because String section use some =~ *)
2167 (* let gsubst = global_replace *)
2170 let (==~
) s re
= Str.string_match re
s 0
2172 let _memo_compiled_regexp = Hashtbl.create
101
2173 let candidate_match_func s re
=
2174 (* old: Str.string_match (Str.regexp re) s 0 *)
2176 memoized _memo_compiled_regexp re
(fun () -> Str.regexp re
)
2178 Str.string_match
compile_re s 0
2180 let match_func s re
=
2181 profile_code "Common.=~" (fun () -> candidate_match_func s re
)
2190 let string_match_substring re
s =
2191 try let _i = Str.search_forward re
s 0 in true
2192 with Not_found
-> false
2195 example(string_match_substring (Str.regexp
"foo") "a foo b")
2197 example(string_match_substring (Str.regexp
"\\bfoo\\b") "a foo b")
2199 example(string_match_substring (Str.regexp
"\\bfoo\\b") "a\n\nfoo b")
2201 example(string_match_substring (Str.regexp
"\\bfoo_bar\\b") "a\n\nfoo_bar b")
2204 example(string_match_substring (Str.regexp "\\bfoo_bar2\\b") "a\n\nfoo_bar2 b")
2209 let (regexp_match
: string -> string -> string) = fun s re
->
2211 Str.matched_group
1 s
2213 (* beurk, side effect code, but hey, it is convenient *)
2215 * let (matched: int -> string -> string) = fun i s ->
2216 * Str.matched_group i s
2218 * let matched1 = fun s -> matched 1 s
2219 * let matched2 = fun s -> (matched 1 s, matched 2 s)
2220 * let matched3 = fun s -> (matched 1 s, matched 2 s, matched 3 s)
2221 * let matched4 = fun s -> (matched 1 s, matched 2 s, matched 3 s, matched 4 s)
2222 * let matched5 = fun s -> (matched 1 s, matched 2 s, matched 3 s, matched 4 s, matched 5 s)
2223 * let matched6 = fun s -> (matched 1 s, matched 2 s, matched 3 s, matched 4 s, matched 5 s, matched 6 s)
2228 let split sep
s = Str.split (Str.regexp sep
) s
2229 let _ = example (split "/" "" =*= [])
2230 let join sep
xs = String.concat sep
xs
2231 let _ = example (join "/" ["toto"; "titi"; "tata"] =$
= "toto/titi/tata")
2233 let rec join str = function
2236 | x::xs -> x ^ str ^ (join str xs)
2240 let (split_list_regexp
: string -> string list
-> (string * string list
) list
) =
2242 let rec split_lr_aux (heading
, accu
) = function
2243 | [] -> [(heading
, List.rev accu
)]
2246 then (heading
, List.rev accu
)::split_lr_aux (x, []) xs
2247 else split_lr_aux (heading
, x::accu
) xs
2249 split_lr_aux ("__noheading__", []) xs
2250 +> (fun xs -> if (List.hd
xs) =*= ("__noheading__",[]) then List.tl
xs else xs)
2254 let regexp_alpha = Str.regexp
2255 "^[a-zA-Z_][A-Za-z_0-9]*$"
2258 let all_match re
s =
2259 let regexp = Str.regexp re
in
2261 let _ = Str.global_substitute
regexp (fun _s
->
2262 let substr = Str.matched_string
s in
2263 assert(substr ==~
regexp); (* @Effect: also use it's side effect *)
2264 let paren_matched = matched1 substr in
2265 push2 paren_matched res;
2270 let _ = example (all_match "\\(@[A-Za-z]+\\)" "ca va @Et toi @Comment"
2271 =*= ["@Et";"@Comment"])
2274 let global_replace_regexp re f_on_substr
s =
2275 let regexp = Str.regexp re
in
2276 Str.global_substitute
regexp (fun _wholestr
->
2278 let substr = Str.matched_string
s in
2283 let regexp_word_str =
2284 "\\([a-zA-Z_][A-Za-z_0-9]*\\)"
2285 let regexp_word = Str.regexp regexp_word_str
2287 let regular_words s =
2288 all_match regexp_word_str s
2290 let contain_regular_word s =
2291 let xs = regular_words s in
2296 (*****************************************************************************)
2298 (*****************************************************************************)
2300 let slength = String.length
2301 let concat = String.concat
2304 let i_to_s = string_of_int
2305 let s_to_i = int_of_string
2308 (* strings take space in memory. Better when can share the space used by
2310 let _shareds = Hashtbl.create
100
2311 let (shared_string
: string -> string) = fun s ->
2312 try Hashtbl.find
_shareds s
2313 with Not_found
-> (Hashtbl.add _shareds s s; s)
2317 | s -> String.sub
s 0 (String.length
s - 1)
2320 let chop_dirsymbol = function
2321 | s when s =~
"\\(.*\\)/$" -> matched1 s
2325 let (<!!>) s (i,j) =
2326 String.sub
s i (if j < 0 then String.length
s - i + j + 1 else j - i)
2327 (* let _ = example ( "tototati"<!!>(3,-2) = "otat" ) *)
2329 let (<!>) s i = String.get
s i
2332 let rec split_on_char c s =
2334 let sp = String.index
s c in
2335 String.sub
s 0 sp ::
2336 split_on_char c (String.sub
s (sp+1) (String.length
s - sp - 1))
2337 with Not_found
-> [s]
2340 let lowercase = String.lowercase
2342 let quote s = "\"" ^
s ^
"\""
2344 (* easier to have this to be passed as hof, because ocaml dont have
2345 * haskell "section" operators
2350 let is_blank_string s =
2351 s =~
"^\\([ \t]\\)*$"
2353 (* src: lablgtk2/examples/entrycompletion.ml *)
2354 let is_string_prefix s1 s2
=
2355 (String.length s1
<= String.length s2
) &&
2356 (String.sub s2
0 (String.length s1
) =$
= s1
)
2360 then Printf.sprintf
"%d %s" i s
2361 else Printf.sprintf
"%d %ss" i s
2363 let showCodeHex xs = List.iter
(fun i -> printf
"%02x" i) xs
2365 let take_string n s =
2366 String.sub
s 0 (n-1)
2368 let take_string_safe n s =
2369 if n > String.length
s
2371 else take_string n s
2377 let ko = (i / 1024) mod 1024 in
2378 let mo = (i / 1024) / 1024 in
2380 then sprintf
"%dMo%dKo" mo ko
2381 else sprintf
"%dKo" ko
2385 let ko = i / 1024 in
2393 (* done in summer 2007 for julia
2394 * Reference: P216 of gusfeld book
2395 * For two strings S1 and S2, D(i,j) is defined to be the edit distance of S1[1..i] to S2[1..j]
2396 * So edit distance of S1 (of length n) and S2 (of length m) is D(n,m)
2398 * Dynamic programming technique
2400 * D(i,0) = i for all i (cos to go from S1[1..i] to 0 characteres of S2 you have to delete all characters from S1[1..i]
2401 * D(0,j) = j for all j (cos j characters must be inserted)
2403 * D(i,j) = min([D(i-1, j)+1, D(i, j - 1 + 1), D(i-1, j-1) + t(i,j)])
2404 * where t(i,j) is equal to 1 if S1(i) != S2(j) and 0 if equal
2405 * intuition = there is 4 possible action = deletion, insertion, substitution, or match
2408 * D(i,j) must be one of the three
2416 let matrix_distance s1 s2
=
2417 let n = (String.length s1
) in
2418 let m = (String.length s2
) in
2419 let mat = Array.make_matrix
(n+1) (m+1) 0 in
2421 if String.get s1
(i-1) =<= String.get s2
(j-1)
2425 let min3 a
b c = min
(min a
b) c in
2437 min3 (mat.(i).(j-1) + 1) (mat.(i-1).(j) + 1) (mat.(i-1).(j-1) + t i j)
2442 let edit_distance s1 s2
=
2443 (matrix_distance s1 s2
).(String.length s1
).(String.length s2
)
2446 let test = edit_distance "vintner" "writers"
2447 let _ = assert (edit_distance "winter" "winter" =|= 0)
2448 let _ = assert (edit_distance "vintner" "writers" =|= 5)
2451 (*****************************************************************************)
2453 (*****************************************************************************)
2455 let dirname = Filename.dirname
2456 let basename = Filename.basename
2458 type filename = string (* TODO could check that exist :) type sux *)
2460 type dirname = string (* TODO could check that exist :) type sux *)
2463 module BasicType
= struct
2464 type filename = string
2468 let (filesuffix
: filename -> string) = fun s ->
2469 (try regexp_match
s ".+\\.\\([a-zA-Z0-9_]+\\)$" with _ -> "NOEXT")
2470 let (fileprefix
: filename -> string) = fun s ->
2471 (try regexp_match
s "\\(.+\\)\\.\\([a-zA-Z0-9_]+\\)?$" with _ -> s)
2473 let _ = example (filesuffix
"toto.c" =$
= "c")
2474 let _ = example (fileprefix
"toto.c" =$
= "toto")
2477 assert (s = fileprefix s ^ filesuffix s)
2479 let withoutExtension s = global_replace (regexp "\\..*$") "" s
2480 let () = example "without"
2481 (withoutExtension "toto.s.toto" = "toto")
2484 let adjust_ext_if_needed filename ext
=
2485 if String.get ext
0 <> '
.'
2486 then failwith
"I need an extension such as .c not just c";
2488 if not
(filename =~
(".*\\" ^ ext
))
2494 let db_of_filename file
=
2495 dirname file
, basename file
2497 let filename_of_db (basedir
, file
) =
2498 Filename.concat basedir file
2502 let dbe_of_filename file
=
2503 (* raise Invalid_argument if no ext, so safe to use later the unsafe
2504 * fileprefix and filesuffix functions.
2506 ignore
(Filename.chop_extension file
);
2507 Filename.dirname file
,
2508 Filename.basename file
+> fileprefix
,
2509 Filename.basename file
+> filesuffix
2511 let filename_of_dbe (dir
, base
, ext
) =
2512 Filename.concat dir
(base ^
"." ^ ext
)
2515 let dbe_of_filename_safe file
=
2516 try Left
(dbe_of_filename file
)
2517 with Invalid_argument
_ ->
2518 Right
(Filename.dirname file
, Filename.basename file
)
2521 let dbe_of_filename_nodot file
=
2522 let (d
,b,e) = dbe_of_filename file
in
2523 let d = if d =$
= "." then "" else d in
2530 let replace_ext file oldext newext
=
2531 let (d,b,e) = dbe_of_filename file
in
2532 assert(e =$
= oldext
);
2533 filename_of_dbe (d,b,newext
)
2536 let normalize_path file
=
2537 let (dir
, filename) = Filename.dirname file
, Filename.basename file
in
2538 let xs = split "/" dir
in
2539 let rec aux acc
= function
2540 | [] -> List.rev acc
2544 | ".." -> aux (List.tl acc
) xs
2545 | x -> aux (x::acc
) xs
2548 let xs'
= aux [] xs in
2549 Filename.concat (join "/" xs'
) filename
2554 let relative_to_absolute s =
2555 if Filename.is_relative s
2558 let old = Sys.getcwd () in
2560 let current = Sys.getcwd () in
2567 let relative_to_absolute s =
2568 if Filename.is_relative
s
2569 then Sys.getcwd
() ^
"/" ^
s
2572 let is_relative s = Filename.is_relative s
2573 let is_absolute s = not
(is_relative s)
2576 (* @Pre: prj_path must not contain regexp symbol *)
2577 let filename_without_leading_path prj_path
s =
2578 let prj_path = chop_dirsymbol prj_path in
2579 if s =~
("^" ^
prj_path ^
"/\\(.*\\)$")
2583 (spf "cant find filename_without_project_path: %s %s" prj_path s)
2586 (*****************************************************************************)
2588 (*****************************************************************************)
2597 (*****************************************************************************)
2599 (*****************************************************************************)
2601 (* maybe I should use ocamlcalendar, but I don't like all those functors ... *)
2604 | Jan
| Feb
| Mar
| Apr
| May
| Jun
2605 | Jul
| Aug
| Sep
| Oct
| Nov
| Dec
2606 type year
= Year
of int
2607 type day
= Day
of int
2608 type wday
= Sunday
| Monday
| Tuesday
| Wednesday
| Thursday
| Friday
| Saturday
2610 type date_dmy
= DMY
of day
* month
* year
2612 type hour
= Hour
of int
2613 type minute
= Min
of int
2614 type second
= Sec
of int
2616 type time_hms
= HMS
of hour
* minute
* second
2618 type full_date
= date_dmy
* time_hms
2622 type days
= Days
of int
2624 type time_dmy
= TimeDMY
of day
* month
* year
2627 type float_time
= float
2631 let check_date_dmy (DMY
(day
, month
, year
)) =
2634 let check_time_dmy (TimeDMY
(day
, month
, year
)) =
2637 let check_time_hms (HMS
(x,y,a
)) =
2642 (* ---------------------------------------------------------------------- *)
2645 let int_to_month i =
2646 assert (i <= 12 && i >= 1);
2675 | _ -> raise Impossible
2679 1 , Jan
, "Jan", "January", 31;
2680 2 , Feb
, "Feb", "February", 28;
2681 3 , Mar
, "Mar", "March", 31;
2682 4 , Apr
, "Apr", "April", 30;
2683 5 , May
, "May", "May", 31;
2684 6 , Jun
, "Jun", "June", 30;
2685 7 , Jul
, "Jul", "July", 31;
2686 8 , Aug
, "Aug", "August", 31;
2687 9 , Sep
, "Sep", "September", 30;
2688 10 , Oct
, "Oct", "October", 31;
2689 11 , Nov
, "Nov", "November", 30;
2690 12 , Dec
, "Dec", "December", 31;
2693 let week_day_info = [
2694 0 , Sunday
, "Sun" , "Dim" , "Sunday";
2695 1 , Monday
, "Mon" , "Lun" , "Monday";
2696 2 , Tuesday
, "Tue" , "Mar" , "Tuesday";
2697 3 , Wednesday
, "Wed" , "Mer" , "Wednesday";
2698 4 , Thursday
, "Thu" ,"Jeu" ,"Thursday";
2699 5 , Friday
, "Fri" , "Ven" , "Friday";
2700 6 , Saturday
, "Sat" ,"Sam" , "Saturday";
2704 month_info +> List.map
(fun (i,month
,monthstr
,mlong
,days
) -> i, month
)
2706 month_info +> List.map
(fun (i,month
,monthstr
,mlong
,days
) -> monthstr
, month
)
2707 let slong_to_month_h =
2708 month_info +> List.map
(fun (i,month
,monthstr
,mlong
,days
) -> mlong
, month
)
2710 month_info +> List.map
(fun (i,month
,monthstr
,mlong
,days
) -> month
, monthstr
)
2712 month_info +> List.map
(fun (i,month
,monthstr
,mlong
,days
) -> month
, i)
2715 week_day_info +> List.map
(fun (i,day
,dayen
,dayfr
,daylong
) -> i, day
)
2717 week_day_info +> List.map
(fun (i,day
,dayen
,dayfr
,daylong
) -> day
, dayen
)
2719 week_day_info +> List.map
(fun (i,day
,dayen
,dayfr
,daylong
) -> day
, dayfr
)
2721 let month_of_string s =
2722 List.assoc s s_to_month_h
2724 let month_of_string_long s =
2725 List.assoc s slong_to_month_h
2727 let string_of_month s =
2728 List.assoc s month_to_s_h
2730 let month_of_int i =
2731 List.assoc i i_to_month_h
2733 let int_of_month m =
2734 List.assoc m month_to_i_h
2738 List.assoc i i_to_wday_h
2740 let string_en_of_wday wday
=
2741 List.assoc wday
wday_to_en_h
2742 let string_fr_of_wday wday
=
2743 List.assoc wday
wday_to_fr_h
2745 (* ---------------------------------------------------------------------- *)
2747 let wday_str_of_int ~langage
i =
2748 let wday = wday_of_int i in
2750 | English
-> string_en_of_wday wday
2751 | Francais
-> string_fr_of_wday wday
2752 | Deutsch
-> raise Todo
2756 let string_of_date_dmy (DMY
(Day
n, month
, Year
y)) =
2757 (spf "%02d-%s-%d" n (string_of_month month
) y)
2760 let string_of_unix_time ?
(langage
=English
) tm =
2761 let y = tm.Unix.tm_year
+ 1900 in
2762 let mon = string_of_month (month_of_int (tm.Unix.tm_mon
+ 1)) in
2763 let d = tm.Unix.tm_mday
in
2764 let h = tm.Unix.tm_hour
in
2765 let min = tm.Unix.tm_min
in
2766 let s = tm.Unix.tm_sec
in
2768 let wday = wday_str_of_int ~langage
tm.Unix.tm_wday
in
2770 spf "%02d/%03s/%04d (%s) %02d:%02d:%02d" d mon y wday h min s
2772 (* ex: 21/Jul/2008 (Lun) 21:25:12 *)
2773 let unix_time_of_string s =
2775 ("\\([0-9][0-9]\\)/\\(...\\)/\\([0-9][0-9][0-9][0-9]\\) " ^
2776 "\\(.*\\) \\([0-9][0-9]\\):\\([0-9][0-9]\\):\\([0-9][0-9]\\)")
2778 let (sday
, smonth
, syear
, _sday
, shour
, smin
, ssec
) = matched7 s in
2780 let y = s_to_i syear
- 1900 in
2782 smonth
+> month_of_string +> int_of_month +> (fun i -> i -1)
2785 let tm = Unix.localtime
(Unix.time
()) in
2789 Unix.tm_mday
= s_to_i sday
;
2790 Unix.tm_hour
= s_to_i shour
;
2791 Unix.tm_min
= s_to_i smin
;
2792 Unix.tm_sec
= s_to_i ssec
;
2794 else failwith
("unix_time_of_string: " ^
s)
2798 let short_string_of_unix_time ?
(langage
=English
) tm =
2799 let y = tm.Unix.tm_year
+ 1900 in
2800 let mon = string_of_month (month_of_int (tm.Unix.tm_mon
+ 1)) in
2801 let d = tm.Unix.tm_mday
in
2802 let _h = tm.Unix.tm_hour
in
2803 let _min = tm.Unix.tm_min
in
2804 let _s = tm.Unix.tm_sec
in
2806 let wday = wday_str_of_int ~langage
tm.Unix.tm_wday
in
2808 spf "%02d/%03s/%04d (%s)" d mon y wday
2811 let string_of_unix_time_lfs time
=
2814 (int_to_month (time
.Unix.tm_mon
+ 1))
2815 (time
.Unix.tm_year
+ 1900)
2818 (* ---------------------------------------------------------------------- *)
2819 let string_of_floattime ?langage
i =
2820 let tm = Unix.localtime
i in
2821 string_of_unix_time ?langage
tm
2823 let short_string_of_floattime ?langage
i =
2824 let tm = Unix.localtime
i in
2825 short_string_of_unix_time ?langage
tm
2827 let floattime_of_string s =
2828 let tm = unix_time_of_string s in
2829 let (sec
,_tm
) = Unix.mktime
tm in
2833 (* ---------------------------------------------------------------------- *)
2834 let days_in_week_of_day day
=
2835 let tm = Unix.localtime day
in
2837 let wday = tm.Unix.tm_wday
in
2838 let wday = if wday =|= 0 then 6 else wday -1 in
2840 let mday = tm.Unix.tm_mday
in
2842 let start_d = mday - wday in
2843 let end_d = mday + (6 - wday) in
2845 enum start_d end_d +> List.map
(fun mday ->
2846 Unix.mktime
{tm with Unix.tm_mday
= mday} +> fst
2849 let first_day_in_week_of_day day
=
2850 List.hd
(days_in_week_of_day day
)
2852 let last_day_in_week_of_day day
=
2853 last (days_in_week_of_day day
)
2856 (* ---------------------------------------------------------------------- *)
2858 (* (modified) copy paste from ocamlcalendar/src/date.ml *)
2860 [| 0; 31; 59; 90; 120; 151; 181; 212; 243; 273; 304; 334(*; 365*) |]
2863 let rough_days_since_jesus (DMY
(Day nday
, month
, Year year
)) =
2866 (days_month.(int_of_month month
-1)) +
2873 let is_more_recent d1 d2
=
2874 let (Days n1
) = rough_days_since_jesus d1
in
2875 let (Days n2
) = rough_days_since_jesus d2
in
2880 if is_more_recent d1 d2
2885 if is_more_recent d1 d2
2890 let maximum_dmy ds
=
2893 let minimum_dmy ds
=
2898 let rough_days_between_dates d1 d2
=
2899 let (Days n1
) = rough_days_since_jesus d1
in
2900 let (Days n2
) = rough_days_since_jesus d2
in
2904 (rough_days_between_dates
2905 (DMY
(Day
7, Jan
, Year
1977))
2906 (DMY
(Day
13, Jan
, Year
1977)) =*= Days
6)
2908 (* because of rough days, it is a bit buggy, here it should return 1 *)
2910 let _ = assert_equal
2911 (rough_days_between_dates
2912 (DMY (Day 29, Feb, Year 1977))
2913 (DMY (Day 1, Mar , Year 1977)))
2918 (* from julia, in gitsort.ml *)
2922 [(1,31);(2,28);(3,31);(4,30);(5,31); (6,6);(7,7);(8,31);(9,30);(10,31);
2923 (11,30);(12,31);(0,31)]
2925 let normalize (year,month,day,hour,minute,second) =
2928 let (day,hour) = (day - 1,hour + 24) in
2931 let month = month - 1 in
2932 let day = List.assoc month antimonths in
2934 if month = 2 && year / 4 * 4 = year && not (year / 100 * 100 = year)
2938 then (year-1,12,day,hour,minute,second)
2939 else (year,month,day,hour,minute,second)
2940 else (year,month,day,hour,minute,second)
2941 else (year,month,day,hour,minute,second)
2946 let mk_date_dmy day month year
=
2947 let date = DMY
(Day
day, month_of_int month, Year year
) in
2948 (* check_date_dmy date *)
2952 (* ---------------------------------------------------------------------- *)
2953 (* conversion to unix.tm *)
2955 let dmy_to_unixtime (DMY
(Day
n, month, Year year
)) =
2957 Unix.tm_sec
= 0; (** Seconds 0..60 *)
2958 tm_min
= 0; (** Minutes 0..59 *)
2959 tm_hour
= 12; (** Hours 0..23 *)
2960 tm_mday
= n; (** Day of month 1..31 *)
2961 tm_mon
= (int_of_month month -1); (** Month of year 0..11 *)
2962 tm_year
= year
- 1900; (** Year - 1900 *)
2963 tm_wday
= 0; (** Day of week (Sunday is 0) *)
2964 tm_yday
= 0; (** Day of year 0..365 *)
2965 tm_isdst
= false; (** Daylight time savings in effect *)
2969 let unixtime_to_dmy tm =
2970 let n = tm.Unix.tm_mday
in
2971 let month = month_of_int (tm.Unix.tm_mon
+ 1) in
2972 let year = tm.Unix.tm_year
+ 1900 in
2974 DMY
(Day
n, month, Year
year)
2977 let unixtime_to_floattime tm =
2978 Unix.mktime
tm +> fst
2980 let floattime_to_unixtime sec
=
2984 let sec_to_days sec
=
2985 let minfactor = 60 in
2986 let hourfactor = 60 * 60 in
2987 let dayfactor = 60 * 60 * 24 in
2989 let days = sec
/ dayfactor in
2990 let hours = (sec
mod dayfactor) / hourfactor in
2991 let mins = (sec
mod hourfactor) / minfactor in
2992 let sec = (sec mod 60) in
2993 (* old: Printf.sprintf "%d days, %d hours, %d minutes" days hours mins *)
2994 (if days > 0 then plural days "day" ^
" " else "") ^
2995 (if hours > 0 then plural hours "hour" ^
" " else "") ^
2996 (if mins > 0 then plural mins "min" ^
" " else "") ^
2999 let sec_to_hours sec =
3000 let minfactor = 60 in
3001 let hourfactor = 60 * 60 in
3003 let hours = sec / hourfactor in
3004 let mins = (sec mod hourfactor) / minfactor in
3005 let sec = (sec mod 60) in
3006 (* old: Printf.sprintf "%d days, %d hours, %d minutes" days hours mins *)
3007 (if hours > 0 then plural hours "hour" ^
" " else "") ^
3008 (if mins > 0 then plural mins "min" ^
" " else "") ^
3013 let test_date_1 () =
3014 let date = DMY
(Day
17, Sep
, Year
1991) in
3015 let float, tm = dmy_to_unixtime date in
3016 pr2 (spf "date: %.0f" float);
3020 (* src: ferre in logfun/.../date.ml *)
3022 let day_secs : float = 86400.
3024 let today : unit -> float = fun () -> (Unix.time
() )
3025 let yesterday : unit -> float = fun () -> (Unix.time
() -. day_secs)
3026 let tomorrow : unit -> float = fun () -> (Unix.time
() +. day_secs)
3028 let lastweek : unit -> float = fun () -> (Unix.time
() -. (7.0 *. day_secs))
3029 let lastmonth : unit -> float = fun () -> (Unix.time
() -. (30.0 *. day_secs))
3032 let week_before : float_time
-> float_time
= fun d ->
3033 (d -. (7.0 *. day_secs))
3034 let month_before : float_time
-> float_time
= fun d ->
3035 (d -. (30.0 *. day_secs))
3037 let week_after : float_time
-> float_time
= fun d ->
3038 (d +. (7.0 *. day_secs))
3042 (*****************************************************************************)
3043 (* Lines/words/strings *)
3044 (*****************************************************************************)
3047 * let (list_of_string: string -> char list) = fun s ->
3048 * (enum 0 ((String.length s) - 1) +> List.map (String.get s))
3051 let _ = example (list_of_string
"abcd" =*= ['a'
;'
b'
;'
c'
;'
d'
])
3054 let rec (list_of_stream: ('a Stream.t) -> 'a list) =
3056 | [< 'c ; stream >] -> c :: list_of_stream stream
3059 let (list_of_string: string -> char list) =
3060 Stream.of_string $ list_of_stream
3064 * let (lines: string -> string list) = fun s -> ...
3067 let (lines_with_nl
: string -> string list
) = fun s ->
3068 let rec lines_aux = function
3070 | [x] -> if x =$
= "" then [] else [x ^
"\n"] (* old: [x] *)
3075 (time_func (fun () -> Str.split_delim
(Str.regexp "\n") s)) +> lines_aux
3077 (* in fact better make it return always complete lines, simplify *)
3078 (* Str.split, but lines "\n1\n2\n" dont return the \n and forget the first \n => split_delim better than split *)
3079 (* +> List.map (fun s -> s ^ "\n") but add an \n even at the end => lines_aux *)
3081 let chars = list_of_string s in
3082 chars +> List.fold_left (fun (acc, lines) char ->
3083 let newacc = acc ^ (String.make 1 char) in
3085 then ("", newacc::lines)
3086 else (newacc, lines)
3088 +> (fun (s, lines) -> List.rev (s::lines))
3091 (* CHECK: unlines (lines x) = x *)
3092 let (unlines
: string list
-> string) = fun s ->
3093 (String.concat "\n" s) ^
"\n"
3094 let (words
: string -> string list
) = fun s ->
3095 Str.split (Str.regexp "[ \t()\";]+") s
3096 let (unwords
: string list
-> string) = fun s ->
3099 let (split_space
: string -> string list
) = fun s ->
3100 Str.split (Str.regexp "[ \t\n]+") s
3105 lines
s +> List.length
3106 let _ = example (nblines "" =|= 0)
3107 let _ = example (nblines "toto" =|= 1)
3108 let _ = example (nblines "toto\n" =|= 1)
3109 let _ = example (nblines "toto\ntata" =|= 2)
3110 let _ = example (nblines "toto\ntata\n" =|= 2)
3112 (*****************************************************************************)
3114 (*****************************************************************************)
3116 let chan = open_in file
in
3117 let rec cat_orig_aux () =
3119 (* cant do input_line chan::aux() cos ocaml eval from right to left ! *)
3120 let l = input_line
chan in
3121 l :: cat_orig_aux ()
3122 with End_of_file
-> [] in
3125 (* tail recursive efficient version *)
3127 let chan = open_in file
in
3128 let rec cat_aux acc
() =
3129 (* cant do input_line chan::aux() cos ocaml eval from right to left ! *)
3130 let (b, l) = try (true, input_line
chan) with End_of_file
-> (false, "") in
3132 then cat_aux (l::acc
) ()
3135 cat_aux [] () +> List.rev
+> (fun x -> close_in
chan; x)
3137 let cat_array file
=
3138 (""::cat file
) +> Array.of_list
3141 let interpolate str
=
3143 command2 ("printf \"%s\\n\" " ^ str ^
">/tmp/caml");
3147 (* could do a print_string but printf dont like print_string *)
3148 let echo s = printf
"%s" s; flush stdout
; s
3150 let usleep s = for i = 1 to s do () done
3152 let sleep_little () =
3155 (*ignore(Sys.command ("usleep " ^ !_sleep_time))*)
3159 * let command2 s = ignore(Sys.command s)
3163 let pid = Unix.fork
() in
3167 (* Unix.setsid(); *)
3168 Sys.set_signal
Sys.sigint
(Sys.Signal_handle
(fun _ ->
3170 Unix.kill
0 Sys.sigkill
;
3178 let process_output_to_list2 = fun command
->
3179 let chan = Unix.open_process_in command
in
3180 let res = ref ([] : string list
) in
3181 let rec process_otl_aux () =
3182 let e = input_line
chan in
3184 process_otl_aux() in
3185 try process_otl_aux ()
3187 let stat = Unix.close_process_in
chan in (List.rev
!res,stat)
3188 let cmd_to_list command
=
3189 let (l,_) = process_output_to_list2 command
in l
3190 let process_output_to_list = cmd_to_list
3191 let cmd_to_list_and_status = process_output_to_list2
3194 * let command2 s = ignore(Sys.command s)
3198 let _batch_mode = ref false
3199 let command2_y_or_no cmd
=
3200 if !_batch_mode then begin command2 cmd
; true end
3203 pr2 (cmd ^
" [y/n] ?");
3204 match read_line
() with
3205 | "y" | "yes" | "Y" -> command2 cmd
; true
3206 | "n" | "no" | "N" -> false
3207 | _ -> failwith
"answer by yes or no"
3210 let command2_y_or_no_exit_if_no cmd
=
3211 let res = command2_y_or_no cmd
in
3214 else raise
(UnixExit
(1))
3219 let mkdir ?
(mode
=0o770
) file
=
3220 Unix.mkdir file mode
3222 let read_file_orig file
= cat file
+> unlines
3223 let read_file file
=
3224 let ic = open_in file
in
3225 let size = in_channel_length
ic in
3226 let buf = String.create
size in
3227 really_input
ic buf 0 size;
3232 let write_file ~file
s =
3233 let chan = open_out file
in
3234 (output_string
chan s; close_out
chan)
3237 (Unix.stat file
).Unix.st_size
3239 let filemtime file
=
3240 (Unix.stat file
).Unix.st_mtime
3242 (* opti? use wc -l ? *)
3243 let nblines_file file
=
3244 cat file
+> List.length
3246 let lfile_exists filename =
3248 (match (Unix.lstat
filename).Unix.st_kind
with
3249 | (Unix.S_REG
| Unix.S_LNK
) -> true
3253 Unix.Unix_error
(Unix.ENOENT
, _, _) -> false
3254 | Unix.Unix_error
(Unix.ENOTDIR
, _, _) -> false
3255 | Unix.Unix_error
(error
, _, fl
) ->
3257 (Printf.sprintf
"unexpected error %s for file %s"
3258 (Unix.error_message error
) fl
)
3260 let is_directory file
=
3261 (Unix.stat file
).Unix.st_kind
=*= Unix.S_DIR
3264 (* src: from chailloux et al book *)
3265 let capsule_unix f args =
3267 with Unix.Unix_error
(e, fm
, argm
) ->
3268 log (Printf.sprintf
"exn Unix_error: %s %s %s\n" (Unix.error_message
e) fm argm
)
3271 let (readdir_to_kind_list
: string -> Unix.file_kind
-> string list
) =
3275 +> List.filter
(fun s ->
3277 let stat = Unix.lstat
(path ^
"/" ^
s) in
3278 stat.Unix.st_kind
=*= kind
3280 pr2 ("EXN pb stating file: " ^
s);
3284 let (readdir_to_dir_list
: string -> string list
) = fun path
->
3285 readdir_to_kind_list path
Unix.S_DIR
3287 let (readdir_to_file_list
: string -> string list
) = fun path
->
3288 readdir_to_kind_list path
Unix.S_REG
3290 let (readdir_to_link_list
: string -> string list
) = fun path
->
3291 readdir_to_kind_list path
Unix.S_LNK
3294 let (readdir_to_dir_size_list
: string -> (string * int) list
) = fun path
->
3297 +> map_filter (fun s ->
3298 let stat = Unix.lstat
(path ^
"/" ^
s) in
3299 if stat.Unix.st_kind
=*= Unix.S_DIR
3300 then Some
(s, stat.Unix.st_size
)
3304 (* could be in control section too *)
3306 (* Why a use_cache argument ? because sometimes want disable it but dont
3307 * want put the cache_computation funcall in comment, so just easier to
3308 * pass this extra option.
3310 let cache_computation2 ?
(verbose
=false) ?
(use_cache
=true) file ext_cache
f =
3314 if not
(Sys.file_exists file
)
3315 then failwith
("can't find: " ^ file
);
3316 let file_cache = (file ^ ext_cache
) in
3317 if Sys.file_exists
file_cache &&
3318 filemtime file_cache >= filemtime file
3320 if verbose
then pr2 ("using cache: " ^
file_cache);
3321 get_value file_cache
3325 write_value res file_cache;
3329 let cache_computation ?verbose ?use_cache a
b c =
3330 profile_code "Common.cache_computation" (fun () ->
3331 cache_computation2 ?verbose ?use_cache a
b c)
3334 let cache_computation_robust2
3336 (need_no_changed_files
, need_no_changed_variables
) ext_depend
3338 if not
(Sys.file_exists file
)
3339 then failwith
("can't find: " ^ file
);
3341 let file_cache = (file ^ ext_cache
) in
3342 let dependencies_cache = (file ^ ext_depend
) in
3345 (* could do md5sum too *)
3346 ((file
::need_no_changed_files
) +> List.map
(fun f -> f, filemtime f),
3347 need_no_changed_variables
)
3350 if Sys.file_exists
dependencies_cache &&
3351 get_value dependencies_cache =*= dependencies
3352 then get_value file_cache
3354 pr2 ("cache computation recompute " ^ file
);
3356 write_value dependencies dependencies_cache;
3357 write_value res file_cache;
3361 let cache_computation_robust a
b c d e =
3362 profile_code "Common.cache_computation_robust" (fun () ->
3363 cache_computation_robust2 a
b c d e)
3368 (* dont forget that cmd_to_list call bash and so pattern may contain
3369 * '*' symbols that will be expanded, so can do glob "*.c"
3372 cmd_to_list ("ls -1 " ^ pattern
)
3375 (* update: have added the -type f, so normally need less the sanity_check_xxx
3377 let files_of_dir_or_files ext
xs =
3378 xs +> List.map
(fun x ->
3380 then cmd_to_list ("find " ^
x ^
" -noleaf -type f -name \"*." ^ext^
"\"")
3385 let files_of_dir_or_files_no_vcs ext
xs =
3386 xs +> List.map
(fun x ->
3390 ("find " ^
x ^
" -noleaf -type f -name \"*." ^ext^
"\"" ^
3391 "| grep -v /.hg/ |grep -v /CVS/ | grep -v /.git/ |grep -v /_darcs/"
3397 let files_of_dir_or_files_no_vcs_post_filter regex
xs =
3398 xs +> List.map
(fun x ->
3403 " -noleaf -type f | grep -v /.hg/ |grep -v /CVS/ | grep -v /.git/ |grep -v /_darcs/"
3405 +> List.filter
(fun s -> s =~ regex
)
3410 let sanity_check_files_and_adjust ext files
=
3411 let files = files +> List.filter
(fun file
->
3412 if not
(file
=~
(".*\\."^ext
))
3414 pr2 ("warning: seems not a ."^ext^
" file");
3418 if is_directory file
3420 pr2 (spf "warning: %s is a directory" file
);
3430 (* taken from mlfuse, the predecessor of ocamlfuse *)
3431 type rwx
= [`R
|`W
|`X
] list
3432 let file_perm_of : u
:rwx
-> g
:rwx
-> o:rwx
-> Unix.file_perm
=
3435 List.fold_left
(fun acc p
-> acc
lor ((function `R
-> 4 | `W
-> 2 | `X
-> 1) p
)) 0 l in
3437 ((to_oct u
) lsl 6) lor
3438 ((to_oct g
) lsl 3) lor
3447 let _ = Sys.getenv var
in true
3448 with Not_found
-> false
3450 (* emacs/lisp inspiration (eric cooper and yaron minsky use that too) *)
3451 let (with_open_outfile
: filename -> (((string -> unit) * out_channel
) -> 'a
) -> 'a
) =
3453 let chan = open_out file
in
3454 let pr s = output_string
chan s in
3455 unwind_protect (fun () ->
3456 let res = f (pr, chan) in
3459 (fun e -> close_out
chan)
3461 let (with_open_infile
: filename -> ((in_channel
) -> 'a
) -> 'a
) = fun file
f ->
3462 let chan = open_in file
in
3463 unwind_protect (fun () ->
3467 (fun e -> close_in
chan)
3470 let (with_open_outfile_append
: filename -> (((string -> unit) * out_channel
) -> 'a
) -> 'a
) =
3472 let chan = open_out_gen
[Open_creat
;Open_append
] 0o666 file
in
3473 let pr s = output_string
chan s in
3474 unwind_protect (fun () ->
3475 let res = f (pr, chan) in
3478 (fun e -> close_out
chan)
3485 (* it seems that the toplevel block such signals, even with this explicit
3487 * let _ = Unix.sigprocmask Unix.SIG_UNBLOCK [Sys.sigalrm]
3490 (* could be in Control section *)
3492 (* subtil: have to make sure that timeout is not intercepted before here, so
3493 * avoid exn handle such as try (...) with _ -> cos timeout will not bubble up
3494 * enough. In such case, add a case before such as
3495 * with Timeout -> raise Timeout | _ -> ...
3497 * question: can we have a signal and so exn when in a exn handler ?
3500 let interval_timer = ref true
3502 let timeout_function timeoutval
= fun f ->
3507 Sys.set_signal
Sys.sigvtalrm
3508 (Sys.Signal_handle
(fun _ -> raise Timeout
));
3510 (Unix.setitimer
Unix.ITIMER_VIRTUAL
3511 {Unix.it_interval
=float_of_int timeoutval
;
3512 Unix.it_value
=float_of_int timeoutval
});
3514 ignore
(Unix.alarm
0);
3519 Sys.set_signal
Sys.sigalrm
3520 (Sys.Signal_handle
(fun _ -> raise Timeout
));
3521 ignore
(Unix.alarm timeoutval
);
3523 ignore
(Unix.alarm
0);
3528 log "timeout (we abort)";
3532 (* subtil: important to disable the alarm before relaunching the exn,
3533 * otherwise the alarm is still running.
3535 * robust?: and if alarm launched after the log (...) ?
3536 * Maybe signals are disabled when process an exception handler ?
3539 ignore
(Unix.alarm
0);
3540 (* log ("exn while in transaction (we abort too, even if ...) = " ^
3541 Printexc.to_string e);
3543 log "exn while in timeout_function";
3547 let timeout_function_opt timeoutvalopt
f =
3548 match timeoutvalopt
with
3550 | Some
x -> timeout_function x f
3554 (* creation of tmp files, a la gcc *)
3556 let _temp_files_created = ref ([] : filename list
)
3558 (* ex: new_temp_file "cocci" ".c" will give "/tmp/cocci-3252-434465.c" *)
3559 let new_temp_file prefix suffix
=
3560 let processid = i_to_s (Unix.getpid
()) in
3561 let tmp_file = Filename.temp_file
(prefix ^
"-" ^
processid ^
"-") suffix
in
3562 push2 tmp_file _temp_files_created;
3566 let save_tmp_files = ref false
3567 let erase_temp_files () =
3568 if not
!save_tmp_files then begin
3569 !_temp_files_created +> List.iter
(fun s ->
3570 (* pr2 ("erasing: " ^ s); *)
3571 command2 ("rm -f " ^
s)
3573 _temp_files_created := []
3576 let erase_this_temp_file f =
3577 if not
!save_tmp_files then begin
3578 _temp_files_created :=
3579 List.filter
(function x -> not
(x =$
= f)) !_temp_files_created;
3580 command2 ("rm -f " ^
f)
3584 (* now in prelude: exception UnixExit of int *)
3585 let exn_to_real_unixexit f =
3587 with UnixExit
x -> exit
x
3593 with_open_outfile file
(fun (pr,_chan) ->
3594 xs +> List.iter
(fun s -> pr s; pr "\n");
3603 (*****************************************************************************)
3605 (*****************************************************************************)
3608 let uncons l = (List.hd
l, List.tl
l)
3611 let safe_tl l = try List.tl
l with _ -> []
3619 | ([],_) -> failwith
"zip: not same length"
3620 | (_,[]) -> failwith
"zip: not same length"
3621 | (x::xs,y::ys
) -> (x,y)::zip xs ys
3623 let rec zip_safe xs ys
=
3627 | (x::xs,y::ys
) -> (x,y)::zip_safe xs ys
3630 List.fold_right
(fun e (xs, ys
) ->
3631 (fst e::xs), (snd e::ys
)) zs
([],[])
3634 let map_withkeep f xs =
3635 xs +> List.map
(fun x -> f x, x)
3638 * let rec take n xs =
3641 * | (_,[]) -> failwith "take: not enough"
3642 * | (n,x::xs) -> x::take (n-1) xs
3645 let rec take_safe n xs =
3649 | (n,x::xs) -> x::take_safe (n-1) xs
3651 let rec take_until p
= function
3653 | x::xs -> if p
x then [] else x::(take_until p
xs)
3655 let take_while p
= take_until (p $ not
)
3658 (* now in prelude: let rec drop n xs = ... *)
3659 let _ = example (drop 3 [1;2;3;4] =*= [4])
3661 let rec drop_while p
= function
3663 | x::xs -> if p
x then drop_while p
xs else x::xs
3666 let rec drop_until p
xs =
3667 drop_while (fun x -> not
(p
x)) xs
3668 let _ = example (drop_until (fun x -> x =|= 3) [1;2;3;4;5] =*= [3;4;5])
3671 let span p
xs = (take_while p
xs, drop_while p
xs)
3674 let rec (span: ('a
-> bool) -> 'a list
-> 'a list
* 'a list
) =
3679 let (l1
, l2
) = span p
xs in
3682 let _ = example ((span (fun x -> x <= 3) [1;2;3;4;1;2] =*= ([1;2;3],[4;1;2])))
3684 let rec groupBy eq
l =
3688 let (xs1
,xs2
) = List.partition
(fun x'
-> eq
x x'
) xs in
3689 (x::xs1
)::(groupBy eq xs2
)
3691 let rec group_by_mapped_key fkey
l =
3696 let (xs1
,xs2
) = List.partition
(fun x'
-> let k2 = fkey
x'
in k=*=k2) xs
3698 (k, (x::xs1
))::(group_by_mapped_key fkey xs2
)
3703 let (exclude_but_keep_attached
: ('a
-> bool) -> 'a list
-> ('a
* 'a list
) list
)=
3705 let rec aux_filter acc ans
= function
3706 | [] -> (* drop what was accumulated because nothing to attach to *)
3710 then aux_filter (x::acc
) ans
xs
3711 else aux_filter [] ((x, List.rev acc
)::ans
) xs
3715 (exclude_but_keep_attached
(fun x -> x =|= 3) [3;3;1;3;2;3;3;3] =*=
3716 [(1,[3;3]);(2,[3])])
3718 let (group_by_post
: ('a
-> bool) -> 'a list
-> ('a list
* 'a
) list
* 'a list
)=
3720 let rec aux_filter grouped_acc acc
= function
3722 List.rev grouped_acc
, List.rev acc
3726 aux_filter ((List.rev acc
,x)::grouped_acc
) [] xs
3728 aux_filter grouped_acc
(x::acc
) xs
3733 (group_by_post
(fun x -> x =|= 3) [1;1;3;2;3;4;5;3;6;6;6] =*=
3734 ([([1;1],3);([2],3);[4;5],3], [6;6;6]))
3736 let (group_by_pre
: ('a
-> bool) -> 'a list
-> 'a list
* ('a
* 'a list
) list
)=
3738 let xs'
= List.rev
xs in
3739 let (ys
, unclassified
) = group_by_post
f xs'
in
3740 List.rev unclassified
,
3741 ys
+> List.rev
+> List.map
(fun (xs, x) -> x, List.rev
xs )
3744 (group_by_pre
(fun x -> x =|= 3) [1;1;3;2;3;4;5;3;6;6;6] =*=
3745 ([1;1], [(3,[2]); (3,[4;5]); (3,[6;6;6])]))
3748 let rec (split_when
: ('a
-> bool) -> 'a list
-> 'a list
* 'a
* 'a list
) =
3750 | [] -> raise Not_found
3755 let (l1
, a
, l2
) = split_when p
xs in
3757 let _ = example (split_when
(fun x -> x =|= 3)
3758 [1;2;3;4;1;2] =*= ([1;2],3,[4;1;2]))
3761 (* not so easy to come up with ... used in aComment for split_paragraph *)
3762 let rec split_gen_when_aux f acc
xs =
3769 (match f (x::xs) with
3771 split_gen_when_aux f (x::acc
) xs
3773 let before = List.rev acc
in
3775 then split_gen_when_aux f [] rest
3776 else before::split_gen_when_aux f [] rest
3778 (* could avoid introduce extra aux function by using ?(acc = []) *)
3779 let split_gen_when f xs =
3780 split_gen_when_aux f [] xs
3784 (* generate exception (Failure "tl") if there is no element satisfying p *)
3785 let rec (skip_until
: ('a list
-> bool) -> 'a list
-> 'a list
) = fun p
xs ->
3786 if p
xs then xs else skip_until p
(List.tl
xs)
3788 (skip_until
(function 1::2::xs -> true | _ -> false)
3789 [1;3;4;1;2;4;5] =*= [1;2;4;5])
3791 let rec skipfirst e = function
3793 | e'
::l when e =*= e'
-> skipfirst e l
3798 * let rec enum x n = ...
3803 if null xs then [] (* enum 0 (-1) generate an exception *)
3804 else zip xs (enum 0 ((List.length
xs) -1))
3806 let index_list_and_total xs =
3807 let total = List.length
xs in
3808 if null xs then [] (* enum 0 (-1) generate an exception *)
3809 else zip xs (enum 0 ((List.length
xs) -1))
3810 +> List.map
(fun (a
,b) -> (a
,b,total))
3812 let index_list_1 xs =
3813 xs +> index_list +> List.map
(fun (x,i) -> x, i+1)
3815 let or_list = List.fold_left
(||) false
3816 let and_list = List.fold_left
(&&) true
3819 let sum = sum_int xs in
3820 (float_of_int
sum) /. (float_of_int
(List.length
xs))
3822 let snoc x xs = xs @ [x]
3823 let cons x xs = x::xs
3825 let head_middle_tail xs =
3829 let reversed = List.rev
(y::xs) in
3830 let tail = List.hd
reversed in
3831 let middle = List.rev
(List.tl
reversed) in
3833 | _ -> failwith
"head_middle_tail, too small list"
3835 let _ = assert_equal (head_middle_tail [1;2;3]) (1, [2], 3)
3836 let _ = assert_equal (head_middle_tail [1;3]) (1, [], 3)
3842 (* let (++) = (@), could do that, but if load many times the common, then pb *)
3843 (* let (++) l1 l2 = List.fold_right (fun x acc -> x::acc) l1 l2 *)
3846 let newxs = List.filter
(fun y -> y <> x) xs in
3847 assert (List.length
newxs =|= List.length
xs - 1);
3852 List.filter
(fun x -> not
(p
x)) xs
3857 let fold_k f lastk acc
xs =
3858 let rec fold_k_aux acc
= function
3861 f acc
x (fun acc
-> fold_k_aux acc
xs)
3866 let rec list_init = function
3867 | [] -> raise Not_found
3869 | x::y::xs -> x::(list_init (y::xs))
3871 let rec list_last = function
3872 | [] -> raise Not_found
3874 | x::y::xs -> list_last (y::xs)
3878 * let last_n n l = List.rev (take n (List.rev l))
3879 * let last l = List.hd (last_n 1 l)
3882 let rec join_gen a
= function
3885 | x::xs -> x::a
::(join_gen a
xs)
3888 (* todo: foldl, foldr (a more consistent foldr) *)
3891 let iter_index f l =
3892 let rec iter_ n = function
3894 | e::l -> f e n ; iter_ (n+1) l
3898 let rec map_ n = function
3900 | e::l -> f e n :: map_ (n+1) l
3905 let filter_index f l =
3906 let rec filt i = function
3908 | e::l -> if f i e then e :: filt (i+1) l else filt (i+1) l
3913 let do_withenv doit
f env
l =
3914 let r_env = ref env
in
3915 let l'
= doit
(fun e ->
3916 let e'
, env'
= f !r_env e in
3922 * let fold_left_with_index f acc = ...
3925 let map_withenv f env
e = do_withenv List.map
f env
e
3927 let rec collect_accu f accu
= function
3929 | e::l -> collect_accu f (List.rev_append
(f e) accu
) l
3931 let collect f l = List.rev
(collect_accu f [] l)
3933 (* cf also List.partition *)
3935 let rec fpartition p
l =
3936 let rec part yes no
= function
3937 | [] -> (List.rev yes
, List.rev no
)
3940 | None
-> part yes
(x :: no
) l
3941 | Some
v -> part (v :: yes
) no
l) in
3946 let rec removelast = function
3947 | [] -> failwith
"removelast"
3949 | e::l -> e :: removelast l
3951 let remove x = List.filter
(fun y -> y != x)
3952 let empty list
= null list
3955 let rec inits = function
3957 | e::l -> [] :: List.map
(fun l -> e::l) (inits l)
3959 let rec tails = function
3961 | (_::xs) as xxs
-> xxs
:: tails xs
3964 let reverse = List.rev
3968 let fold_left = List.fold_left
3969 let rev_map = List.rev_map
3972 let rec fold_right1 f = function
3973 | [] -> failwith
"fold_right1"
3975 | e::l -> f e (fold_right1 f l)
3977 let maximum l = foldl1 max
l
3978 let minimum l = foldl1 min l
3980 (* do a map tail recursive, and result is reversed, it is a tail recursive map => efficient *)
3981 let map_eff_rev = fun f l ->
3982 let rec map_eff_aux acc
=
3985 | x::xs -> map_eff_aux ((f x)::acc
) xs
3990 let rec loop acc
= function
3992 | x::xs -> loop ((f x)::acc
) xs in
3996 let rec (generate
: int -> 'a
-> 'a list
) = fun i el
->
3998 else el
::(generate
(i-1) el
)
4000 let rec uniq = function
4002 | e::l -> if List.mem
e l then uniq l else e :: uniq l
4004 let has_no_duplicate xs =
4005 List.length
xs =|= List.length
(uniq xs)
4006 let is_set_as_list = has_no_duplicate
4009 let rec get_duplicates xs =
4014 then x::get_duplicates xs (* todo? could x from xs to avoid double dups?*)
4015 else get_duplicates xs
4017 let rec all_assoc e = function
4019 | (e'
,v) :: l when e=*=e'
-> v :: all_assoc e l
4020 | _ :: l -> all_assoc e l
4022 let prepare_want_all_assoc l =
4023 List.map
(fun n -> n, uniq (all_assoc n l)) (uniq (List.map
fst l))
4025 let rotate list
= List.tl list
++ [(List.hd list
)]
4027 let or_list = List.fold_left (||) false
4028 let and_list = List.fold_left (&&) true
4030 let rec (return_when
: ('a
-> '
b option) -> 'a list
-> '
b) = fun p
-> function
4031 | [] -> raise Not_found
4032 | x::xs -> (match p
x with None
-> return_when p
xs | Some
b -> b)
4034 let rec splitAt n xs =
4035 if n =|= 0 then ([],xs)
4039 | (x::xs) -> let (a
,b) = splitAt (n-1) xs in (x::a
, b)
4043 let rec pack_aux l i = function
4044 | [] -> failwith
"not on a boundary"
4045 | [x] -> if i =|= n then [l++[x]] else failwith
"not on a boundary"
4048 then (l++[x])::(pack_aux [] 1 xs)
4049 else pack_aux (l++[x]) (i+1) xs
4053 let min_with f = function
4054 | [] -> raise Not_found
4056 let rec min_with_ min_val min_elt
= function
4061 then min_with_ val_ e l
4062 else min_with_ min_val min_elt
l
4063 in min_with_ (f e) e l
4065 let two_mins_with f = function
4067 let rec min_with_ min_val min_elt min_val2 min_elt2
= function
4068 | [] -> min_elt
, min_elt2
4074 then min_with_ val_ e min_val min_elt
l
4075 else min_with_ min_val min_elt
val_ e l
4076 else min_with_ min_val min_elt min_val2 min_elt2
l
4080 if v1 < v2 then min_with_ v1 e1
v2 e2
l else min_with_ v2 e2
v1 e1
l
4081 | _ -> raise Not_found
4083 let grep_with_previous f = function
4086 let rec grep_with_previous_ previous
= function
4088 | e::l -> if f previous
e then e :: grep_with_previous_ e l else grep_with_previous_ previous
l
4089 in e :: grep_with_previous_ e l
4091 let iter_with_previous f = function
4094 let rec iter_with_previous_ previous
= function
4096 | e::l -> f previous
e ; iter_with_previous_ e l
4097 in iter_with_previous_ e l
4100 let iter_with_before_after f xs =
4101 let rec aux before_rev after
=
4106 aux (x::before_rev
) xs
4112 (* kind of cartesian product of x*x *)
4113 let rec (get_pair
: ('a list
) -> (('a
* 'a
) list
)) = function
4115 | x::xs -> (List.map
(fun y -> (x,y)) xs) ++ (get_pair
xs)
4118 (* retourne le rang dans une liste d'un element *)
4119 let rang elem liste
=
4120 let rec rang_rec elem accu
= function
4121 | [] -> raise Not_found
4122 | a
::l -> if a
=*= elem
then accu
4123 else rang_rec elem
(accu
+1) l in
4124 rang_rec elem
1 liste
4126 (* retourne vrai si une liste contient des doubles *)
4127 let rec doublon = function
4129 | a
::l -> if List.mem a
l then true
4132 let rec (insert_in
: 'a
-> 'a list
-> 'a list list
) = fun x -> function
4134 | y::ys
-> (x::y::ys
) :: (List.map
(fun xs -> y::xs) (insert_in
x ys
))
4135 (* insert_in 3 [1;2] = [[3; 1; 2]; [1; 3; 2]; [1; 2; 3]] *)
4137 let rec (permutation
: 'a list
-> 'a list list
) = function
4140 | x::xs -> List.flatten
(List.map
(insert_in
x) (permutation
xs))
4141 (* permutation [1;2;3] =
4142 * [[1; 2; 3]; [2; 1; 3]; [2; 3; 1]; [1; 3; 2]; [3; 1; 2]; [3; 2; 1]]
4146 let rec remove_elem_pos pos
xs =
4147 match (pos
, xs) with
4148 | _, [] -> failwith
"remove_elem_pos"
4150 | n, x::xs -> x::(remove_elem_pos (n-1) xs)
4152 let rec insert_elem_pos (e, pos
) xs =
4153 match (pos
, xs) with
4155 | n, x::xs -> x::(insert_elem_pos (e, (n-1)) xs)
4156 | n, [] -> failwith
"insert_elem_pos"
4158 let rec uncons_permut xs =
4159 let indexed = index_list xs in
4160 indexed +> List.map
(fun (x, pos
) -> (x, pos
), remove_elem_pos pos
xs)
4163 (uncons_permut ['a'
;'
b'
;'
c'
] =*=
4164 [('a'
, 0), ['
b'
;'
c'
];
4165 ('
b'
, 1), ['a'
;'
c'
];
4169 let rec uncons_permut_lazy xs =
4170 let indexed = index_list xs in
4171 indexed +> List.map
(fun (x, pos
) ->
4173 lazy (remove_elem_pos pos
xs)
4180 let rec map_flatten f l =
4181 let rec map_flatten_aux accu
= function
4183 | e :: l -> map_flatten_aux (List.rev (f e) ++ accu
) l
4184 in List.rev (map_flatten_aux [] l)
4187 let rec repeat e n =
4188 let rec repeat_aux acc
= function
4190 | n when n < 0 -> failwith
"repeat"
4191 | n -> repeat_aux (e::acc
) (n-1) in
4194 let rec map2 f = function
4196 | x::xs -> let r = f x in r::map2 f xs
4199 let rec map3_aux acc
= function
4201 | x::xs -> map3_aux (f x::acc
) xs in
4205 let tails2 xs = map rev (inits (rev xs))
4206 let res = tails2 [1;2;3;4]
4207 let res = tails [1;2;3;4]
4211 let pack_sorted same
xs =
4212 let rec pack_s_aux acc
xs =
4214 | ((cur
,rest
),[]) -> cur
::rest
4215 | ((cur
,rest
), y::ys
) ->
4216 if same
(List.hd cur
) y then pack_s_aux (y::cur
, rest
) ys
4217 else pack_s_aux ([y], cur
::rest
) ys
4218 in pack_s_aux ([List.hd
xs],[]) (List.tl
xs) +> List.rev
4219 let test = pack_sorted (=*=) [1;1;1;2;2;3;4]
4222 let rec keep_best f =
4223 let rec partition e = function
4227 | None
-> let (e''
, l'
) = partition e l in e''
, e'
:: l'
4228 | Some
e''
-> partition e''
l
4232 let (e'
, l'
) = partition e l in
4233 e'
:: keep_best f l'
4235 let rec sorted_keep_best f = function
4240 | None
-> a
:: sorted_keep_best f (b :: l)
4241 | Some
e -> sorted_keep_best f (e :: l)
4245 let (cartesian_product
: 'a list
-> '
b list
-> ('a
* '
b) list
) = fun xs ys
->
4246 xs +> List.map
(fun x -> ys
+> List.map
(fun y -> (x,y)))
4249 let _ = assert_equal
4250 (cartesian_product
[1;2] ["3";"4";"5"])
4251 [1,"3";1,"4";1,"5"; 2,"3";2,"4";2,"5"]
4254 profile_code "Common.sort_by_xxx" (fun () -> List.sort a
b)
4256 let sort_by_val_highfirst xs =
4257 sort_prof (fun (k1
,v1) (k2,v2) -> compare
v2 v1) xs
4258 let sort_by_val_lowfirst xs =
4259 sort_prof (fun (k1
,v1) (k2,v2) -> compare
v1 v2) xs
4261 let sort_by_key_highfirst xs =
4262 sort_prof (fun (k1
,v1) (k2,v2) -> compare
k2 k1
) xs
4263 let sort_by_key_lowfirst xs =
4264 sort_prof (fun (k1
,v1) (k2,v2) -> compare k1
k2) xs
4266 let _ = example (sort_by_key_lowfirst [4, (); 7,()] =*= [4,(); 7,()])
4267 let _ = example (sort_by_key_highfirst [4,(); 7,()] =*= [7,(); 4,()])
4270 let sortgen_by_key_highfirst xs =
4271 sort_prof (fun (k1
,v1) (k2,v2) -> compare
k2 k1
) xs
4272 let sortgen_by_key_lowfirst xs =
4273 sort_prof (fun (k1
,v1) (k2,v2) -> compare k1
k2) xs
4275 (*----------------------------------*)
4277 (* sur surEnsemble [p1;p2] [[p1;p2;p3] [p1;p2] ....] -> [[p1;p2;p3] ... *)
4278 (* mais pas p2;p3 *)
4280 let surEnsemble liste_el liste_liste_el
=
4282 (function liste_elbis
->
4283 List.for_all
(function el
-> List.mem el liste_elbis
) liste_el
4288 (*----------------------------------*)
4289 (* combinaison/product/.... (aop) *)
4290 (* 123 -> 123 12 13 23 1 2 3 *)
4291 let rec realCombinaison = function
4295 let res = realCombinaison l in
4296 let res2 = List.map
(function x -> a
::x) res in
4297 res2 ++ res ++ [[a
]]
4299 (* genere toutes les combinaisons possible de paire *)
4300 (* par exemple combinaison [1;2;4] -> [1, 2; 1, 4; 2, 4] *)
4301 let rec combinaison = function
4305 | a
::b::l -> (List.map
(function elem
-> (a
, elem
)) (b::l)) ++
4306 (combinaison (b::l))
4308 (*----------------------------------*)
4310 (* list of list(aop) *)
4311 (* insere elem dans la liste de liste (si elem est deja present dans une de *)
4312 (* ces listes, on ne fait rien *)
4313 let rec insere elem
= function
4316 if (List.mem elem a
) then a
::l
4317 else a
::(insere elem
l)
4319 let rec insereListeContenant lis el
= function
4322 if List.mem el a
then
4323 (List.append lis a
)::l
4324 else a
::(insereListeContenant lis el
l)
4326 (* fusionne les listes contenant et1 et et2 dans la liste de liste*)
4327 let rec fusionneListeContenant (et1
, et2
) = function
4328 | [] -> [[et1
; et2
]]
4330 (* si les deux sont deja dedans alors rien faire *)
4331 if List.mem et1 a
then
4332 if List.mem et2 a
then a
::l
4334 insereListeContenant a et2
l
4335 else if List.mem et2 a
then
4336 insereListeContenant a et1
l
4337 else a
::(fusionneListeContenant (et1
, et2
) l)
4339 (*****************************************************************************)
4341 (*****************************************************************************)
4343 (* do bound checking ? *)
4344 let array_find_index f a
=
4345 let rec array_find_index_ i =
4346 if f i then i else array_find_index_ (i+1)
4348 try array_find_index_ 0 with _ -> raise Not_found
4350 let array_find_index_via_elem f a
=
4351 let rec array_find_index_ i =
4352 if f a
.(i) then i else array_find_index_ (i+1)
4354 try array_find_index_ 0 with _ -> raise Not_found
4358 type idx
= Idx
of int
4359 let next_idx (Idx
i) = (Idx
(i+1))
4360 let int_of_idx (Idx
i) = i
4362 let array_find_index_typed f a
=
4363 let rec array_find_index_ i =
4364 if f i then i else array_find_index_ (next_idx i)
4366 try array_find_index_ (Idx
0) with _ -> raise Not_found
4370 (*****************************************************************************)
4372 (*****************************************************************************)
4374 type 'a matrix
= 'a array array
4376 let map_matrix f mat =
4377 mat +> Array.map
(fun arr
-> arr
+> Array.map
f)
4379 let (make_matrix_init
:
4380 nrow
:int -> ncolumn
:int -> (int -> int -> 'a
) -> 'a matrix
) =
4381 fun ~nrow ~ncolumn
f ->
4382 Array.init nrow
(fun i ->
4383 Array.init ncolumn
(fun j ->
4388 let iter_matrix f m =
4389 Array.iteri
(fun i e ->
4390 Array.iteri
(fun j x ->
4395 let nb_rows_matrix m =
4398 let nb_columns_matrix m =
4399 assert(Array.length
m > 0);
4402 (* check all nested arrays have the same size *)
4403 let invariant_matrix m =
4406 let (rows_of_matrix
: 'a matrix
-> 'a list list
) = fun m ->
4407 Array.to_list
m +> List.map
Array.to_list
4409 let (columns_of_matrix
: 'a matrix
-> 'a list list
) = fun m ->
4410 let nbcols = nb_columns_matrix m in
4411 let nbrows = nb_rows_matrix m in
4412 (enum 0 (nbcols -1)) +> List.map
(fun j ->
4413 (enum 0 (nbrows -1)) +> List.map
(fun i ->
4418 let all_elems_matrix_by_row m =
4419 rows_of_matrix
m +> List.flatten
4440 let _ = example (rows_of_matrix
ex_matrix1 =*= ex_rows1)
4441 let _ = example (columns_of_matrix
ex_matrix1 =*= ex_columns1)
4444 (*****************************************************************************)
4446 (*****************************************************************************)
4448 module B_Array = Bigarray.Array2
4457 (* for the string_of auto generation of camlp4
4458 val b_array_string_of_t : 'a -> 'b -> string
4459 val bigarray_string_of_int16_unsigned_elt : 'a -> string
4460 val bigarray_string_of_c_layout : 'a -> string
4461 let b_array_string_of_t f a = "<>"
4462 let bigarray_string_of_int16_unsigned_elt a = "<>"
4463 let bigarray_string_of_c_layout a = "<>"
4468 (*****************************************************************************)
4469 (* Set. Have a look too at set*.mli *)
4470 (*****************************************************************************)
4471 type 'a set
= 'a list
4474 let (empty_set
: 'a set
) = []
4475 let (insert_set
: 'a
-> 'a set
-> 'a set
) = fun x xs ->
4477 then (* let _ = print_string "warning insert: already exist" in *)
4484 let (single_set
: 'a
-> 'a set
) = fun x -> insert_set
x empty_set
4485 let (set
: 'a list
-> 'a set
) = fun xs ->
4486 xs +> List.fold_left (flip insert_set
) empty_set
4488 let (exists_set
: ('a
-> bool) -> 'a set
-> bool) = List.exists
4489 let (forall_set
: ('a
-> bool) -> 'a set
-> bool) = List.for_all
4490 let (filter_set
: ('a
-> bool) -> 'a set
-> 'a set
) = List.filter
4491 let (fold_set
: ('a
-> '
b -> 'a
) -> 'a
-> '
b set
-> 'a
) = List.fold_left
4492 let (map_set
: ('a
-> '
b) -> 'a set
-> '
b set
) = List.map
4493 let (member_set
: 'a
-> 'a set
-> bool) = List.mem
4495 let find_set = List.find
4496 let sort_set = List.sort
4497 let iter_set = List.iter
4499 let (top_set
: 'a set
-> 'a
) = List.hd
4501 let (inter_set
: 'a set
-> 'a set
-> 'a set
) = fun s1 s2
->
4502 s1
+> fold_set
(fun acc
x -> if member_set
x s2
then insert_set
x acc
else acc
) empty_set
4503 let (union_set
: 'a set
-> 'a set
-> 'a set
) = fun s1 s2
->
4504 s2
+> fold_set
(fun acc
x -> if member_set
x s1
then acc
else insert_set
x acc
) s1
4505 let (minus_set
: 'a set
-> 'a set
-> 'a set
) = fun s1 s2
->
4506 s1
+> filter_set
(fun x -> not
(member_set
x s2
))
4509 let union_all l = List.fold_left union_set
[] l
4511 let big_union_set f xs = xs +> map_set
f +> fold_set union_set empty_set
4513 let (card_set
: 'a set
-> int) = List.length
4515 let (include_set
: 'a set
-> 'a set
-> bool) = fun s1 s2
->
4516 (s1
+> forall_set
(fun p
-> member_set p s2
))
4518 let equal_set s1 s2
= include_set s1 s2
&& include_set s2 s1
4520 let (include_set_strict
: 'a set
-> 'a set
-> bool) = fun s1 s2
->
4521 (card_set s1
< card_set s2
) && (include_set s1 s2
)
4523 let ($
*$
) = inter_set
4524 let ($
+$
) = union_set
4525 let ($
-$
) = minus_set
4526 let ($?$
) a
b = profile_code "$?$" (fun () -> member_set a
b)
4527 let ($
<$
) = include_set_strict
4528 let ($
<=$
) = include_set
4529 let ($
=$
) = equal_set
4531 (* as $+$ but do not check for memberness, allow to have set of func *)
4532 let ($
@$
) = fun a
b -> a
@ b
4534 let rec nub = function
4536 | x::xs -> if List.mem
x xs then nub xs else x::(nub xs)
4538 (*****************************************************************************)
4539 (* Set as normal list *)
4540 (*****************************************************************************)
4542 let (union: 'a list -> 'a list -> 'a list) = fun l1 l2 ->
4543 List.fold_left (fun acc x -> if List.mem x l1 then acc else x::acc) l1 l2
4545 let insert_normal x xs = union xs [x]
4547 (* retourne lis1 - lis2 *)
4548 let minus l1 l2
= List.filter
(fun x -> not
(List.mem
x l2
)) l1
4550 let inter l1 l2
= List.fold_left (fun acc
x -> if List.mem
x l2
then x::acc
else acc
) [] l1
4552 let union_list = List.fold_left union
[]
4555 List.fold_left (function acc
-> function el
-> union
[el
] acc
) [] lis
4558 let rec non_uniq = function
4560 | e::l -> if mem
e l then e :: non_uniq l else non_uniq l
4562 let rec inclu lis1 lis2
=
4563 List.for_all
(function el
-> List.mem el lis2
) lis1
4565 let equivalent lis1 lis2
=
4566 (inclu lis1 lis2
) && (inclu lis2 lis1
)
4571 (*****************************************************************************)
4572 (* Set as sorted list *)
4573 (*****************************************************************************)
4574 (* liste trie, cos we need to do intersection, and insertion (it is a set
4575 cos when introduce has, if we create a new has => must do a recurse_rep
4576 and another categ can have to this has => must do an union
4579 let rec insert x = function
4583 else (if x < y then x::y::ys else y::(insert x ys))
4585 (* same, suppose sorted list *)
4586 let rec intersect x y =
4591 if x = y then x::(intersect xs ys
)
4593 (if x < y then intersect xs (y::ys
)
4594 else intersect (x::xs) ys
4596 (* intersect [1;3;7] [2;3;4;7;8];; *)
4599 (*****************************************************************************)
4601 (*****************************************************************************)
4602 type ('a
,'
b) assoc = ('a
* '
b) list
4606 let (assoc_to_function
: ('a
, '
b) assoc -> ('a
-> '
b)) = fun xs ->
4607 xs +> List.fold_left (fun acc
(k, v) ->
4609 if k =*= k'
then v else acc
k'
4610 )) (fun k -> failwith
"no key in this assoc")
4612 let (assoc_to_function: ('a, 'b) assoc -> ('a -> 'b)) = fun xs ->
4613 fun k -> List.assoc k xs
4616 let (empty_assoc
: ('a
, '
b) assoc) = []
4617 let fold_assoc = List.fold_left
4618 let insert_assoc = fun x xs -> x::xs
4619 let map_assoc = List.map
4620 let filter_assoc = List.filter
4622 let assoc = List.assoc
4623 let keys xs = List.map
fst xs
4627 (* assert unique key ?*)
4628 let del_assoc key
xs = xs +> List.filter
(fun (k,v) -> k <> key
)
4629 let replace_assoc (key
, v) xs = insert_assoc (key
, v) (del_assoc key
xs)
4631 let apply_assoc key
f xs =
4632 let old = assoc key
xs in
4633 replace_assoc (key
, f old) xs
4635 let big_union_assoc f xs = xs +> map_assoc f +> fold_assoc union_set empty_set
4637 (* todo: pb normally can suppr fun l -> .... l but if do that, then strange type _a
4638 => assoc_map is strange too => equal dont work
4640 let (assoc_reverse
: (('a
* '
b) list
) -> (('
b * 'a
) list
)) = fun l ->
4641 List.map
(fun(x,y) -> (y,x)) l
4643 let (assoc_map
: (('a
* '
b) list
) -> (('a
* '
b) list
) -> (('a
* 'a
) list
)) =
4645 let (l1bis
, l2bis
) = (assoc_reverse l1
, assoc_reverse l2
) in
4646 List.map
(fun (x,y) -> (y, List.assoc x l2bis
)) l1bis
4648 let rec (lookup_list
: 'a
-> ('a
, '
b) assoc list
-> '
b) = fun el
-> function
4649 | [] -> raise Not_found
4650 | (xs::xxs
) -> try List.assoc el
xs with Not_found
-> lookup_list el xxs
4652 let (lookup_list2
: 'a
-> ('a
, '
b) assoc list
-> ('
b * int)) = fun el xxs
->
4653 let rec lookup_l_aux i = function
4654 | [] -> raise Not_found
4656 try let res = List.assoc el
xs in (res,i)
4657 with Not_found
-> lookup_l_aux (i+1) xxs
4658 in lookup_l_aux 0 xxs
4661 (lookup_list2
"c" [["a",1;"b",2];["a",1;"b",3];["a",1;"c",7]] =*= (7,2))
4664 let assoc_option k l =
4665 optionise (fun () -> List.assoc k l)
4667 let assoc_with_err_msg k l =
4670 pr2 (spf "pb assoc_with_err_msg: %s" (dump k));
4673 (*****************************************************************************)
4674 (* Assoc int -> xxx with binary tree. Have a look too at Mapb.mli *)
4675 (*****************************************************************************)
4677 (* ex: type robot_list = robot_info IntMap.t *)
4678 module IntMap
= Map.Make
4681 let compare = compare
4683 let intmap_to_list m = IntMap.fold
(fun id v acc
-> (id, v) :: acc
) m []
4684 let intmap_string_of_t f a
= "<Not Yet>"
4686 module IntIntMap
= Map.Make
4689 let compare = compare
4692 let intintmap_to_list m = IntIntMap.fold
(fun id v acc
-> (id, v) :: acc
) m []
4693 let intintmap_string_of_t f a
= "<Not Yet>"
4696 (*****************************************************************************)
4698 (*****************************************************************************)
4700 (* il parait que better when choose a prime *)
4701 let hcreate () = Hashtbl.create
401
4702 let hadd (k,v) h = Hashtbl.add h k v
4703 let hmem k h = Hashtbl.mem
h k
4704 let hfind k h = Hashtbl.find
h k
4705 let hreplace (k,v) h = Hashtbl.replace
h k v
4706 let hiter = Hashtbl.iter
4707 let hfold = Hashtbl.fold
4708 let hremove k h = Hashtbl.remove h k
4711 let hash_to_list h =
4712 Hashtbl.fold
(fun k v acc
-> (k,v)::acc
) h []
4713 +> List.sort
compare
4715 let hash_to_list_unsorted h =
4716 Hashtbl.fold
(fun k v acc
-> (k,v)::acc
) h []
4718 let hash_of_list xs =
4719 let h = Hashtbl.create
101 in
4721 xs +> List.iter
(fun (k, v) -> Hashtbl.add h k v);
4726 let h = Hashtbl.create
101 in
4727 Hashtbl.add h "toto" 1;
4728 Hashtbl.add h "toto" 1;
4729 assert(hash_to_list h =*= ["toto",1; "toto",1])
4732 let hfind_default key value_if_not_found
h =
4733 try Hashtbl.find
h key
4735 (Hashtbl.add h key
(value_if_not_found
()); Hashtbl.find
h key
)
4737 (* not as easy as Perl $h->{key}++; but still possible *)
4738 let hupdate_default key op value_if_not_found
h =
4739 let old = hfind_default key value_if_not_found
h in
4740 Hashtbl.replace
h key
(op
old)
4743 let hfind_option key
h =
4744 optionise (fun () -> Hashtbl.find
h key
)
4747 (* see below: let hkeys h = ... *)
4750 (*****************************************************************************)
4752 (*****************************************************************************)
4754 type 'a hashset
= ('a
, bool) Hashtbl.t
4758 let hash_hashset_add k e h =
4759 match optionise (fun () -> Hashtbl.find
h k) with
4760 | Some hset
-> Hashtbl.replace hset
e true
4762 let hset = Hashtbl.create
11 in
4764 Hashtbl.add h k hset;
4765 Hashtbl.replace
hset e true;
4768 let hashset_to_set baseset
h =
4769 h +> hash_to_list +> List.map
fst +> (fun xs -> baseset#fromlist
xs)
4771 let hashset_to_list h = hash_to_list h +> List.map
fst
4773 let hashset_of_list xs =
4774 xs +> List.map
(fun x -> x, true) +> hash_of_list
4779 let hkey = Hashtbl.create
101 in
4780 h +> Hashtbl.iter
(fun k v -> Hashtbl.replace
hkey k true);
4781 hashset_to_list hkey
4785 let group_assoc_bykey_eff2 xs =
4786 let h = Hashtbl.create
101 in
4787 xs +> List.iter
(fun (k, v) -> Hashtbl.add h k v);
4788 let keys = hkeys h in
4789 keys +> List.map
(fun k -> k, Hashtbl.find_all
h k)
4791 let group_assoc_bykey_eff xs =
4792 profile_code2 "Common.group_assoc_bykey_eff" (fun () ->
4793 group_assoc_bykey_eff2 xs)
4796 let test_group_assoc () =
4797 let xs = enum 0 10000 +> List.map
(fun i -> i_to_s i, i) in
4798 let xs = ("0", 2)::xs in
4799 (* let _ys = xs +> Common.groupBy (fun (a,resa) (b,resb) -> a =$= b) *)
4800 let ys = xs +> group_assoc_bykey_eff
4806 let h = Hashtbl.create
101 in
4807 xs +> List.iter
(fun k ->
4808 Hashtbl.add h k true
4814 let diff_two_say_set_eff xs1 xs2
=
4815 let h1 = hashset_of_list xs1
in
4816 let h2 = hashset_of_list xs2
in
4818 let hcommon = Hashtbl.create
101 in
4819 let honly_in_h1 = Hashtbl.create
101 in
4820 let honly_in_h2 = Hashtbl.create
101 in
4822 h1 +> Hashtbl.iter
(fun k _ ->
4824 then Hashtbl.replace
hcommon k true
4825 else Hashtbl.add honly_in_h1 k true
4827 h2 +> Hashtbl.iter
(fun k _ ->
4829 then Hashtbl.replace
hcommon k true
4830 else Hashtbl.add honly_in_h2 k true
4832 hashset_to_list hcommon,
4833 hashset_to_list honly_in_h1,
4834 hashset_to_list honly_in_h2
4837 (*****************************************************************************)
4839 (*****************************************************************************)
4840 type 'a stack
= 'a list
4843 let (empty_stack
: 'a stack
) = []
4844 let (push: 'a
-> 'a stack
-> 'a stack
) = fun x xs -> x::xs
4845 let (top
: 'a stack
-> 'a
) = List.hd
4846 let (pop
: 'a stack
-> 'a stack
) = List.tl
4848 let top_option = function
4856 * let push2 v l = l := v :: !l
4860 let v = List.hd
!l in
4867 (*****************************************************************************)
4868 (* Undoable Stack *)
4869 (*****************************************************************************)
4871 (* Okasaki use such structure also for having efficient data structure
4872 * supporting fast append.
4875 type 'a undo_stack
= 'a list
* 'a list
(* redo *)
4877 let (empty_undo_stack
: 'a undo_stack
) =
4880 (* push erase the possible redo *)
4881 let (push_undo
: 'a
-> 'a undo_stack
-> 'a undo_stack
) = fun x (undo
,redo
) ->
4884 let (top_undo
: 'a undo_stack
-> 'a
) = fun (undo
, redo
) ->
4887 let (pop_undo
: 'a undo_stack
-> 'a undo_stack
) = fun (undo
, redo
) ->
4889 | [] -> failwith
"empty undo stack"
4893 let (undo_pop
: 'a undo_stack
-> 'a undo_stack
) = fun (undo
, redo
) ->
4895 | [] -> failwith
"empty redo, nothing to redo"
4899 let redo_undo x = undo_pop
x
4902 let top_undo_option = fun (undo
, redo
) ->
4907 (*****************************************************************************)
4909 (*****************************************************************************)
4910 type 'a bintree
= Leaf
of 'a
| Branch
of ('a bintree
* 'a bintree
)
4913 (*****************************************************************************)
4915 (*****************************************************************************)
4917 (* no empty tree, must have one root at list *)
4918 type 'a tree
= Tree
of 'a
* ('a tree
) list
4920 let rec (tree_iter
: ('a
-> unit) -> 'a tree
-> unit) = fun f tree
->
4922 | Tree
(node
, xs) ->
4924 xs +> List.iter
(tree_iter
f)
4927 (*****************************************************************************)
4928 (* N-ary tree with updatable childrens *)
4929 (*****************************************************************************)
4931 (* no empty tree, must have one root at list *)
4934 | NodeRef
of 'a
* 'a treeref list
ref
4936 let treeref_children_ref tree
=
4938 | NodeRef
(n, x) -> x
4942 let rec (treeref_node_iter
:
4943 (* (('a * ('a, 'b) treeref list ref) -> unit) ->
4944 ('a, 'b) treeref -> unit
4949 (* | LeafRef _ -> ()*)
4950 | NodeRef
(n, xs) ->
4952 !xs +> List.iter
(treeref_node_iter
f)
4955 let find_treeref f tree
=
4958 tree
+> treeref_node_iter
(fun (n, xs) ->
4960 then push2 (n, xs) res;
4963 | [n,xs] -> NodeRef
(n, xs)
4964 | [] -> raise Not_found
4965 | x::y::zs
-> raise Multi_found
4967 let rec (treeref_node_iter_with_parents
:
4968 (* (('a * ('a, 'b) treeref list ref) -> ('a list) -> unit) ->
4969 ('a, 'b) treeref -> unit)
4973 let rec aux acc tree
=
4975 (* | LeafRef _ -> ()*)
4976 | NodeRef
(n, xs) ->
4978 !xs +> List.iter
(aux (n::acc
))
4983 (* ---------------------------------------------------------------------- *)
4984 (* Leaf can seem redundant, but sometimes want to directly see if
4985 * a children is a leaf without looking if the list is empty.
4987 type ('a
, '
b) treeref2
=
4988 | NodeRef2
of 'a
* ('a
, '
b) treeref2 list
ref
4992 let treeref2_children_ref tree
=
4994 | LeafRef2
_ -> failwith
"treeref_tail: leaf"
4995 | NodeRef2
(n, x) -> x
4999 let rec (treeref_node_iter2
:
5000 (('a
* ('a
, '
b) treeref2 list
ref) -> unit) ->
5001 ('a
, '
b) treeref2
-> unit) =
5005 | NodeRef2
(n, xs) ->
5007 !xs +> List.iter
(treeref_node_iter2
f)
5010 let find_treeref2 f tree
=
5013 tree
+> treeref_node_iter2
(fun (n, xs) ->
5015 then push2 (n, xs) res;
5018 | [n,xs] -> NodeRef2
(n, xs)
5019 | [] -> raise Not_found
5020 | x::y::zs
-> raise Multi_found
5025 let rec (treeref_node_iter_with_parents2
:
5026 (('a
* ('a
, '
b) treeref2 list
ref) -> ('a list
) -> unit) ->
5027 ('a
, '
b) treeref2
-> unit) =
5029 let rec aux acc tree
=
5032 | NodeRef2
(n, xs) ->
5034 !xs +> List.iter
(aux (n::acc
))
5050 let find_treeref_with_parents_some f tree
=
5053 tree
+> treeref_node_iter_with_parents
(fun (n, xs) parents
->
5054 match f (n,xs) parents
with
5055 | Some
v -> push2 v res;
5060 | [] -> raise Not_found
5061 | x::y::zs
-> raise Multi_found
5063 let find_multi_treeref_with_parents_some f tree
=
5066 tree
+> treeref_node_iter_with_parents
(fun (n, xs) parents
->
5067 match f (n,xs) parents
with
5068 | Some
v -> push2 v res;
5073 | [] -> raise Not_found
5077 (*****************************************************************************)
5078 (* Graph. Have a look too at Ograph_*.mli *)
5079 (*****************************************************************************)
5080 (* todo: generalise to put in common (need 'edge (and 'c ?),
5081 * and take in param a display func, cos caml sux, no overloading of show :(
5082 * Simple impelemntation. Can do also matrix, or adjacent list, or pointer(ref)
5083 * todo: do some check (dont exist already, ...)
5086 type 'node graph
= ('node set
) * (('node
* 'node
) set
)
5088 let (add_node
: 'a
-> 'a graph
-> 'a graph
) = fun node
(nodes
, arcs
) ->
5091 let (del_node
: 'a
-> 'a graph
-> 'a graph
) = fun node
(nodes
, arcs
) ->
5092 (nodes $
-$ set
[node
], arcs
)
5093 (* could do more job:
5094 let _ = assert (successors node (nodes, arcs) = empty) in
5095 +> List.filter (fun (src, dst) -> dst != node))
5097 let (add_arc
: ('a
* 'a
) -> 'a graph
-> 'a graph
) = fun arc
(nodes
, arcs
) ->
5098 (nodes
, set
[arc
] $
+$ arcs
)
5100 let (del_arc
: ('a
* 'a
) -> 'a graph
-> 'a graph
) = fun arc
(nodes
, arcs
) ->
5101 (nodes
, arcs
+> List.filter
(fun a
-> not
(arc
=*= a
)))
5103 let (successors
: 'a
-> 'a graph
-> 'a set
) = fun x (nodes
, arcs
) ->
5104 arcs
+> List.filter
(fun (src
, dst
) -> src
=*= x) +> List.map
snd
5106 let (predecessors
: 'a
-> 'a graph
-> 'a set
) = fun x (nodes
, arcs
) ->
5107 arcs
+> List.filter
(fun (src
, dst
) -> dst
=*= x) +> List.map
fst
5109 let (nodes
: 'a graph
-> 'a set
) = fun (nodes
, arcs
) -> nodes
5112 let rec (fold_upward
: ('
b -> 'a
-> '
b) -> 'a set
-> '
b -> 'a graph
-> '
b) =
5113 fun f xs acc graph
->
5116 | x::xs -> (f acc
x)
5117 +> (fun newacc -> fold_upward
f (graph
+> predecessors
x) newacc graph
)
5118 +> (fun newacc -> fold_upward
f xs newacc graph
)
5119 (* TODO avoid already visited *)
5121 let empty_graph = ([], [])
5126 let (add_arcs_toward: int -> (int list) -> 'a graph -> 'a graph) = fun i xs ->
5128 (nodes, arcs) -> (nodes, (List.map (fun j -> (j,i) ) xs)++arcs)
5129 let (del_arcs_toward: int -> (int list) -> 'a graph -> 'a graph)= fun i xs g ->
5130 List.fold_left (fun acc el -> del_arc (el, i) acc) g xs
5131 let (add_arcs_from: int -> (int list) -> 'a graph -> 'a graph) = fun i xs ->
5133 (nodes, arcs) -> (nodes, (List.map (fun j -> (i,j) ) xs)++arcs)
5136 let (del_node: (int * 'node) -> 'node graph -> 'node graph) = fun node ->
5137 function (nodes, arcs) ->
5138 let newnodes = List.filter (fun a -> not (node = a)) nodes in
5139 if newnodes = nodes then (raise Not_found) else (newnodes, arcs)
5140 let (replace_node: int -> 'node -> 'node graph -> 'node graph) = fun i n ->
5141 function (nodes, arcs) ->
5142 let newnodes = List.filter (fun (j,_) -> not (i = j)) nodes in
5143 ((i,n)::newnodes, arcs)
5144 let (get_node: int -> 'node graph -> 'node) = fun i -> function
5145 (nodes, arcs) -> List.assoc i nodes
5147 let (get_free: 'a graph -> int) = function
5148 (nodes, arcs) -> (maximum (List.map fst nodes))+1
5149 (* require no cycle !!
5150 TODO if cycle check that we have already visited a node *)
5151 let rec (succ_all
: int -> 'a graph
-> (int list
)) = fun i -> function
5152 (nodes
, arcs
) as g
->
5153 let direct = succ
i g
in
5154 union
direct (union_list (List.map
(fun i -> succ_all
i g
) direct))
5155 let rec (pred_all
: int -> 'a graph
-> (int list
)) = fun i -> function
5156 (nodes
, arcs
) as g
->
5157 let direct = pred
i g
in
5158 union
direct (union_list (List.map
(fun i -> pred_all
i g
) direct))
5159 (* require that the nodes are different !! *)
5160 let rec (equal
: 'a graph
-> 'a graph
-> bool) = fun g1 g2
->
5161 let ((nodes1
, arcs1
),(nodes2
, arcs2
)) = (g1
,g2
) in
5163 (* do 2 things, check same length and to assoc *)
5164 let conv = assoc_map nodes1 nodes2
in
5165 List.for_all
(fun (i1
,i2
) ->
5166 List.mem
(List.assoc i1
conv, List.assoc i2
conv) arcs2
)
5168 && (List.length arcs1
= List.length arcs2
)
5169 (* could think that only forall is needed, but need check same lenth too*)
5172 let (display
: 'a graph
-> ('a
-> unit) -> unit) = fun g display_func
->
5173 let rec aux depth
i =
5175 print_int
i; print_string
"->"; display_func
(get_node
i g
);
5177 List.iter
(aux (depth
+2)) (succ
i g
)
5180 let (display_dot
: 'a graph
-> ('a
-> string) -> unit)= fun (nodes
,arcs
) func
->
5181 let file = open_out
"test.dot" in
5182 output_string
file "digraph misc {\n" ;
5183 List.iter
(fun (n, node
) ->
5184 output_int
file n; output_string
file " [label=\"";
5185 output_string
file (func node
); output_string
file " \"];\n"; ) nodes
;
5186 List.iter
(fun (i1
,i2
) -> output_int
file i1
; output_string
file " -> " ;
5187 output_int
file i2
; output_string
file " ;\n"; ) arcs
;
5188 output_string
file "}\n" ;
5190 let status = Unix.system
"viewdot test.dot" in
5192 (* todo: faire = graphe (int can change !!! => cant make simply =)
5193 reassign number first !!
5196 (* todo: mettre diff(modulo = !!) en rouge *)
5197 let (display_dot2
: 'a graph
-> 'a graph
-> ('a
-> string) -> unit) =
5198 fun (nodes1
, arcs1
) (nodes2
, arcs2
) func
->
5199 let file = open_out
"test.dot" in
5200 output_string
file "digraph misc {\n" ;
5201 output_string
file "rotate = 90;\n";
5202 List.iter
(fun (n, node
) ->
5203 output_string
file "100"; output_int
file n;
5204 output_string
file " [label=\"";
5205 output_string
file (func node
); output_string
file " \"];\n"; ) nodes1
;
5206 List.iter
(fun (n, node
) ->
5207 output_string
file "200"; output_int
file n;
5208 output_string
file " [label=\"";
5209 output_string
file (func node
); output_string
file " \"];\n"; ) nodes2
;
5210 List.iter
(fun (i1
,i2
) ->
5211 output_string
file "100"; output_int
file i1
; output_string
file " -> " ;
5212 output_string
file "100"; output_int
file i2
; output_string
file " ;\n";
5215 List.iter
(fun (i1
,i2
) ->
5216 output_string
file "200"; output_int
file i1
; output_string
file " -> " ;
5217 output_string
file "200"; output_int
file i2
; output_string
file " ;\n"; )
5219 (* output_string file "500 -> 1001; 500 -> 2001}\n" ; *)
5220 output_string
file "}\n" ;
5222 let status = Unix.system
"viewdot test.dot" in
5227 (*****************************************************************************)
5229 (*****************************************************************************)
5232 let map = List.map (* note: really really slow, use rev_map if possible *)
5233 let filter = List.filter
5234 let fold = List.fold_left
5235 let member = List.mem
5236 let iter = List.iter
5237 let find = List.find
5238 let exists = List.exists
5239 let forall = List.for_all
5240 let big_union f xs = xs +> map f +> fold union_set empty_set
5241 (* let empty = [] *)
5243 let sort = List.sort
5244 let length = List.length
5245 (* in prelude now: let null xs = match xs with [] -> true | _ -> false *)
5248 let is_singleton = fun xs -> List.length xs =|= 1
5250 let tail_map f l = (* tail recursive map, using rev *)
5251 let rec loop acc
= function
5253 | x::xs -> loop ((f x) :: acc
) xs in
5256 (*****************************************************************************)
5257 (* Geometry (raytracer) *)
5258 (*****************************************************************************)
5260 type vector
= (float * float * float)
5262 type color
= vector
(* color(0-1) *)
5264 (* todo: factorise *)
5265 let (dotproduct
: vector
* vector
-> float) =
5266 fun ((x1
,y1
,z1
),(x2
,y2
,z2
)) -> (x1
*.x2
+. y1
*.y2
+. z1
*.z2
)
5267 let (vector_length
: vector
-> float) =
5268 fun (x,y,z
) -> sqrt
(square x +. square y +. square z
)
5269 let (minus_point
: point
* point
-> vector
) =
5270 fun ((x1
,y1
,z1
),(x2
,y2
,z2
)) -> ((x1
-. x2
),(y1
-. y2
),(z1
-. z2
))
5271 let (distance
: point
* point
-> float) =
5272 fun (x1
, x2
) -> vector_length
(minus_point
(x2
,x1
))
5273 let (normalise
: vector
-> vector
) =
5275 let len = vector_length
(x,y,z
) in (x /. len, y /. len, z
/. len)
5276 let (mult_coeff
: vector
-> float -> vector
) =
5277 fun (x,y,z
) c -> (x *. c, y *. c, z
*. c)
5278 let (add_vector
: vector
-> vector
-> vector
) =
5279 fun v1 v2 -> let ((x1
,y1
,z1
),(x2
,y2
,z2
)) = (v1,v2) in
5280 (x1
+.x2
, y1
+.y2
, z1
+.z2
)
5281 let (mult_vector
: vector
-> vector
-> vector
) =
5282 fun v1 v2 -> let ((x1
,y1
,z1
),(x2
,y2
,z2
)) = (v1,v2) in
5283 (x1
*.x2
, y1
*.y2
, z1
*.z2
)
5284 let sum_vector = List.fold_left add_vector
(0.0,0.0,0.0)
5286 (*****************************************************************************)
5287 (* Pics (raytracer) *)
5288 (*****************************************************************************)
5290 type pixel
= (int * int * int) (* RGB *)
5292 (* required pixel list in row major order, line after line *)
5293 let (write_ppm
: int -> int -> (pixel list
) -> string -> unit) = fun
5294 width height
xs filename ->
5295 let chan = open_out
filename in
5297 output_string
chan "P6\n";
5298 output_string
chan ((string_of_int width
) ^
"\n");
5299 output_string
chan ((string_of_int height
) ^
"\n");
5300 output_string
chan "255\n";
5301 List.iter (fun (r,g
,b) ->
5302 List.iter (fun byt
-> output_byte
chan byt
) [r;g
;b]
5307 let test_ppm1 () = write_ppm
100 100
5308 ((generate
(50*100) (1,45,100)) ++ (generate
(50*100) (1,1,100)))
5311 (*****************************************************************************)
5313 (*****************************************************************************)
5314 type diff
= Match
| BnotinA
| AnotinB
5316 let (diff
: (int -> int -> diff
-> unit)-> (string list
* string list
) -> unit)=
5318 let file1 = "/tmp/diff1-" ^
(string_of_int
(Unix.getuid
())) in
5319 let file2 = "/tmp/diff2-" ^
(string_of_int
(Unix.getuid
())) in
5320 let fileresult = "/tmp/diffresult-" ^
(string_of_int
(Unix.getuid
())) in
5321 write_file file1 (unwords
xs);
5322 write_file file2 (unwords
ys);
5324 ("diff --side-by-side -W 1 " ^
file1 ^
" " ^
file2 ^
" > " ^
fileresult);
5325 let res = cat fileresult in
5328 res +> List.iter (fun s ->
5330 | ("" | " ") -> f !a !b Match
; incr
a; incr
b;
5331 | ">" -> f !a !b BnotinA
; incr
b;
5332 | ("|" | "/" | "\\" ) ->
5333 f !a !b BnotinA
; f !a !b AnotinB
; incr
a; incr
b;
5334 | "<" -> f !a !b AnotinB
; incr
a;
5335 | _ -> raise Impossible
5340 ["0";"a";"b";"c";"d"; "f";"g";"h";"j";"q"; "z"]
5341 [ "a";"b";"c";"d";"e";"f";"g";"i";"j";"k";"r";"x";"y";"z"]
5342 (fun x y -> pr "match")
5343 (fun x y -> pr "a_not_in_b")
5344 (fun x y -> pr "b_not_in_a")
5347 let (diff2
: (int -> int -> diff
-> unit) -> (string * string) -> unit) =
5348 fun f (xstr
,ystr
) ->
5349 write_file "/tmp/diff1" xstr
;
5350 write_file "/tmp/diff2" ystr
;
5352 ("diff --side-by-side --left-column -W 1 " ^
5353 "/tmp/diff1 /tmp/diff2 > /tmp/diffresult");
5354 let res = cat "/tmp/diffresult" in
5357 res +> List.iter (fun s ->
5359 | "(" -> f !a !b Match
; incr
a; incr
b;
5360 | ">" -> f !a !b BnotinA
; incr
b;
5361 | "|" -> f !a !b BnotinA
; f !a !b AnotinB
; incr
a; incr
b;
5362 | "<" -> f !a !b AnotinB
; incr
a;
5363 | _ -> raise Impossible
5367 (*****************************************************************************)
5368 (* Parsers (aop-colcombet) *)
5369 (*****************************************************************************)
5371 let parserCommon lexbuf parserer lexer
=
5373 let result = parserer lexer lexbuf
in
5375 with Parsing.Parse_error
->
5376 print_string
"buf: "; print_string lexbuf
.Lexing.lex_buffer
;
5378 print_string
"current: "; print_int lexbuf
.Lexing.lex_curr_pos
;
5380 raise
Parsing.Parse_error
5383 (* marche pas ca neuneu *)
5385 let getDoubleParser parserer lexer string =
5386 let lexbuf1 = Lexing.from_string string in
5387 let chan = open_in string in
5388 let lexbuf2 = Lexing.from_channel chan in
5389 (parserCommon lexbuf1 parserer lexer , parserCommon lexbuf2 parserer lexer )
5392 let getDoubleParser parserer lexer
=
5395 let lexbuf1 = Lexing.from_string
string in
5396 parserCommon lexbuf1 parserer lexer
5399 let chan = open_in
string in
5400 let lexbuf2 = Lexing.from_channel
chan in
5401 parserCommon lexbuf2 parserer lexer
5405 (*****************************************************************************)
5406 (* parser combinators *)
5407 (*****************************************************************************)
5409 (* cf parser_combinators.ml
5411 * Could also use ocaml stream. but not backtrack and forced to do LL,
5412 * so combinators are better.
5417 (*****************************************************************************)
5418 (* Parser related (cocci) *)
5419 (*****************************************************************************)
5431 let fake_parse_info = {
5432 charpos
= -1; str
= "";
5433 line
= -1; column
= -1; file = "";
5436 let string_of_parse_info x =
5437 spf "%s at %s:%d:%d" x.str
x.file x.line
x.column
5438 let string_of_parse_info_bis x =
5439 spf "%s:%d:%d" x.file x.line
x.column
5441 let (info_from_charpos2
: int -> filename -> (int * int * string)) =
5442 fun charpos
filename ->
5444 (* Currently lexing.ml does not handle the line number position.
5445 * Even if there is some fields in the lexing structure, they are not
5446 * maintained by the lexing engine :( So the following code does not work:
5447 * let pos = Lexing.lexeme_end_p lexbuf in
5448 * sprintf "at file %s, line %d, char %d" pos.pos_fname pos.pos_lnum
5449 * (pos.pos_cnum - pos.pos_bol) in
5450 * Hence this function to overcome the previous limitation.
5452 let chan = open_in
filename in
5453 let linen = ref 0 in
5455 let rec charpos_to_pos_aux last_valid
=
5457 try Some
(input_line
chan)
5458 with End_of_file
when charpos
=|= last_valid
-> None
in
5463 if (!posl + slength s > charpos
)
5466 (!linen, charpos
- !posl, s)
5469 posl := !posl + slength s;
5470 charpos_to_pos_aux !posl;
5472 | None
-> (!linen, charpos
- !posl, "\n")
5474 let res = charpos_to_pos_aux 0 in
5478 let info_from_charpos a b =
5479 profile_code "Common.info_from_charpos" (fun () -> info_from_charpos2
a b)
5483 let full_charpos_to_pos2 = fun filename ->
5485 let size = (filesize filename + 2) in
5487 let arr = Array.create
size (0,0) in
5489 let chan = open_in
filename in
5491 let charpos = ref 0 in
5494 let rec full_charpos_to_pos_aux () =
5496 let s = (input_line
chan) in
5499 (* '... +1 do' cos input_line dont return the trailing \n *)
5500 for i = 0 to (slength s - 1) + 1 do
5501 arr.(!charpos + i) <- (!line, i);
5503 charpos := !charpos + slength s + 1;
5504 full_charpos_to_pos_aux();
5507 for i = !charpos to Array.length arr - 1 do
5508 arr.(i) <- (!line, 0);
5513 full_charpos_to_pos_aux ();
5517 let full_charpos_to_pos a =
5518 profile_code "Common.full_charpos_to_pos" (fun () -> full_charpos_to_pos2 a)
5520 let test_charpos file =
5521 full_charpos_to_pos file +> dump +> pr2
5525 let complete_parse_info filename table
x =
5528 line = fst (table
.(x.charpos));
5529 column
= snd (table
.(x.charpos));
5534 let full_charpos_to_pos_large2 = fun filename ->
5536 let size = (filesize filename + 2) in
5538 (* old: let arr = Array.create size (0,0) in *)
5539 let arr1 = Bigarray.Array1.create
5540 Bigarray.int Bigarray.c_layout
size in
5541 let arr2 = Bigarray.Array1.create
5542 Bigarray.int Bigarray.c_layout
size in
5543 Bigarray.Array1.fill
arr1 0;
5544 Bigarray.Array1.fill
arr2 0;
5546 let chan = open_in
filename in
5548 let charpos = ref 0 in
5551 let rec full_charpos_to_pos_aux () =
5552 let s = (input_line
chan) in
5555 (* '... +1 do' cos input_line dont return the trailing \n *)
5556 for i = 0 to (slength s - 1) + 1 do
5557 (* old: arr.(!charpos + i) <- (!line, i); *)
5558 arr1.{!charpos + i} <- (!line);
5559 arr2.{!charpos + i} <- i;
5561 charpos := !charpos + slength s + 1;
5562 full_charpos_to_pos_aux() in
5565 full_charpos_to_pos_aux ();
5567 for i = !charpos to (* old: Array.length arr *)
5568 Bigarray.Array1.dim
arr1 - 1 do
5569 (* old: arr.(i) <- (!line, 0); *)
5575 (fun i -> arr1.{i}, arr2.{i})
5577 let full_charpos_to_pos_large a =
5578 profile_code "Common.full_charpos_to_pos_large"
5579 (fun () -> full_charpos_to_pos_large2 a)
5582 let complete_parse_info_large filename table
x =
5585 line = fst (table
(x.charpos));
5586 column
= snd (table
(x.charpos));
5589 (*---------------------------------------------------------------------------*)
5590 (* Decalage is here to handle stuff such as cpp which include file and who
5593 let (error_messagebis
: filename -> (string * int) -> int -> string)=
5594 fun filename (lexeme
, lexstart
) decalage
->
5596 let charpos = lexstart
+ decalage
in
5598 let (line, pos, linecontent
) = info_from_charpos charpos filename in
5599 sprintf
"File \"%s\", line %d, column %d, charpos = %d
5600 around = '%s', whole content = %s"
5601 filename line pos charpos tok (chop linecontent
)
5603 let error_message = fun filename (lexeme
, lexstart
) ->
5604 try error_messagebis
filename (lexeme
, lexstart
) 0
5607 ("PB in Common.error_message, position " ^
i_to_s lexstart ^
5608 " given out of file:" ^
filename)
5612 let error_message_short = fun filename (lexeme
, lexstart
) ->
5614 let charpos = lexstart
in
5615 let (line, pos, linecontent
) = info_from_charpos charpos filename in
5616 sprintf
"File \"%s\", line %d" filename line
5620 ("PB in Common.error_message, position " ^
i_to_s lexstart ^
5621 " given out of file:" ^
filename);
5626 (*****************************************************************************)
5627 (* Regression testing bis (cocci) *)
5628 (*****************************************************************************)
5630 (* todo: keep also size of file, compute md5sum ? cos maybe the file
5633 * todo: could also compute the date, or some version info of the program,
5634 * can record the first date when was found a OK, the last date where
5635 * was ok, and then first date when found fail. So the
5636 * Common.Ok would have more information that would be passed
5637 * to the Common.Pb of date * date * date * string peut etre.
5639 * todo? maybe use plain text file instead of marshalling.
5642 type score_result
= Ok
| Pb
of string
5644 type score
= (string (* usually a filename *), score_result
) Hashtbl.t
5646 type score_list
= (string (* usually a filename *) * score_result
) list
5649 let empty_score () = (Hashtbl.create
101 : score
)
5653 let regression_testing_vs newscore bestscore
=
5655 let newbestscore = empty_score () in
5658 (hash_to_list newscore
+> List.map fst)
5660 (hash_to_list bestscore
+> List.map fst)
5663 allres +> List.iter (fun res ->
5665 optionise (fun () -> Hashtbl.find newscore
res),
5666 optionise (fun () -> Hashtbl.find bestscore
res)
5668 | None
, None
-> raise Impossible
5670 Printf.printf
"new test file appeared: %s\n" res;
5671 Hashtbl.add newbestscore res x;
5673 Printf.printf
"old test file disappeared: %s\n" res;
5674 | Some newone
, Some bestone
->
5675 (match newone
, bestone
with
5677 Hashtbl.add newbestscore res Ok
5680 "PBBBBBBBB: a test file does not work anymore!!! : %s\n" res;
5681 Printf.printf
"Error : %s\n" x;
5682 Hashtbl.add newbestscore res Ok
5684 Printf.printf
"Great: a test file now works: %s\n" res;
5685 Hashtbl.add newbestscore res Ok
5687 Hashtbl.add newbestscore res (Pb
x);
5691 "Semipb: still error but not same error : %s\n" res;
5692 Printf.printf
"%s\n" (chop ("Old error: " ^
y));
5693 Printf.printf
"New error: %s\n" x;
5697 flush stdout
; flush stderr
;
5701 let regression_testing newscore best_score_file
=
5703 pr2 ("regression file: "^ best_score_file
);
5704 let (bestscore
: score
) =
5705 if not
(Sys.file_exists best_score_file
)
5706 then write_value (empty_score()) best_score_file
;
5707 get_value best_score_file
5709 let newbestscore = regression_testing_vs newscore bestscore
in
5710 write_value newbestscore (best_score_file ^
".old");
5711 write_value newbestscore best_score_file
;
5717 let string_of_score_result v =
5720 | Pb
s -> "Pb: " ^
s
5722 let total_scores score
=
5723 let total = hash_to_list score
+> List.length in
5724 let good = hash_to_list score
+> List.filter
5725 (fun (s, v) -> v =*= Ok
) +> List.length in
5729 let print_total_score score
=
5730 pr2 "--------------------------------";
5732 pr2 "--------------------------------";
5733 let (good, total) = total_scores score
in
5734 pr2 (sprintf
"good = %d/%d" good total)
5736 let print_score score
=
5737 score
+> hash_to_list +> List.iter (fun (k, v) ->
5738 pr2 (sprintf
"% s --> %s" k (string_of_score_result v))
5740 print_total_score score
;
5744 (*****************************************************************************)
5745 (* Scope managment (cocci) *)
5746 (*****************************************************************************)
5748 (* could also make a function Common.make_scope_functions that return
5749 * the new_scope, del_scope, do_in_scope, add_env. Kind of functor :)
5752 type ('
a, '
b) scoped_env
= ('
a, '
b) assoc list
5755 let rec lookup_env f env =
5757 | [] -> raise Not_found
5758 | []::zs -> lookup_env f zs
5761 | None -> lookup_env f (xs::zs)
5764 let member_env_key k env =
5766 let _ = lookup_env (fun (k',v) -> if k = k' then Some v else None) env in
5768 with Not_found -> false
5772 let rec lookup_env k env
=
5774 | [] -> raise Not_found
5775 | []::zs
-> lookup_env k zs
5776 | ((k'
,v)::xs)::zs
->
5779 else lookup_env k (xs::zs
)
5781 let member_env_key k env
=
5782 match optionise (fun () -> lookup_env k env
) with
5787 let new_scope scoped_env
= scoped_env
:= []::!scoped_env
5788 let del_scope scoped_env
= scoped_env
:= List.tl
!scoped_env
5790 let do_in_new_scope scoped_env
f =
5792 new_scope scoped_env
;
5794 del_scope scoped_env
;
5798 let add_in_scope scoped_env def
=
5799 let (current, older
) = uncons !scoped_env
in
5800 scoped_env
:= (def
::current)::older
5806 (* note that ocaml hashtbl store also old value of a binding when add
5807 * add a newbinding; that's why del_scope works
5810 type ('
a, '
b) scoped_h_env
= {
5811 scoped_h
: ('
a, '
b) Hashtbl.t;
5812 scoped_list
: ('
a, '
b) assoc list
;
5815 let empty_scoped_h_env () = {
5816 scoped_h
= Hashtbl.create
101;
5819 let clone_scoped_h_env x =
5820 { scoped_h
= Hashtbl.copy
x.scoped_h
;
5821 scoped_list
= x.scoped_list
;
5824 let rec lookup_h_env k env
=
5825 Hashtbl.find env
.scoped_h
k
5827 let member_h_env_key k env
=
5828 match optionise (fun () -> lookup_h_env k env
) with
5833 let new_scope_h scoped_env
=
5834 scoped_env
:= {!scoped_env
with scoped_list
= []::!scoped_env
.scoped_list
}
5835 let del_scope_h scoped_env
=
5837 List.hd
!scoped_env
.scoped_list
+> List.iter (fun (k, v) ->
5838 Hashtbl.remove !scoped_env
.scoped_h
k
5840 scoped_env
:= {!scoped_env
with scoped_list
=
5841 List.tl
!scoped_env
.scoped_list
5845 let do_in_new_scope_h scoped_env
f =
5847 new_scope_h scoped_env
;
5849 del_scope_h scoped_env
;
5854 let add_in_scope scoped_env def =
5855 let (current, older) = uncons !scoped_env in
5856 scoped_env := (def::current)::older
5859 let add_in_scope_h x (k,v) =
5861 Hashtbl.add !x.scoped_h
k v;
5862 x := { !x with scoped_list
=
5863 ((k,v)::(List.hd
!x.scoped_list
))::(List.tl
!x.scoped_list
);
5867 (*****************************************************************************)
5869 (*****************************************************************************)
5871 (* let ansi_terminal = ref true *)
5873 let (_execute_and_show_progress_func
: (int (* length *) -> ((unit -> unit) -> unit) -> unit) ref)
5876 failwith
"no execute yet, have you included common_extra.cmo?"
5881 let execute_and_show_progress len f =
5882 !_execute_and_show_progress_func
len f
5885 (* now in common_extra.ml:
5886 * let execute_and_show_progress len f = ...
5889 (*****************************************************************************)
5891 (*****************************************************************************)
5893 let _init_random = Random.self_init
()
5895 let random_insert i l =
5896 let p = Random.int (length l +1)
5897 in let rec insert i p l =
5898 if (p = 0) then i::l else (hd l)::insert i (p-1) (tl l)
5901 let rec randomize_list = function
5903 | a::l -> random_insert a (randomize_list l)
5905 let random_list xs =
5906 List.nth xs (Random.int (length xs))
5908 (* todo_opti: use fisher/yates algorithm.
5909 * ref: http://en.wikipedia.org/wiki/Knuth_shuffle
5911 * public static void shuffle (int[] array)
5913 * Random rng = new Random ();
5914 * int n = array.length;
5917 * int k = rng.nextInt(n + 1); // 0 <= k <= n (!)
5918 * int temp = array[n];
5919 * array[n] = array[k];
5925 let randomize_list xs =
5926 let permut = permutation
xs in
5931 let random_subset_of_list num
xs =
5932 let array = Array.of_list
xs in
5933 let len = Array.length array in
5935 let h = Hashtbl.create
101 in
5936 let cnt = ref num
in
5938 let x = Random.int len in
5939 if not
(Hashtbl.mem
h (array.(x))) (* bugfix2: not just x :) *)
5941 Hashtbl.add h (array.(x)) true; (* bugfix1: not just x :) *)
5945 let objs = hash_to_list h +> List.map fst in
5950 (*****************************************************************************)
5951 (* Flags and actions *)
5952 (*****************************************************************************)
5954 (* I put it inside a func as it can help to give a chance to
5955 * change the globals before getting the options as some
5956 * options sometimes may want to show the default value.
5958 let cmdline_flags_devel () =
5960 "-debugger", Arg.Set
debugger ,
5961 " option to set if launched inside ocamldebug";
5962 "-profile", Arg.Unit
(fun () -> profile := PALL
),
5963 " gather timing information about important functions";
5965 let cmdline_flags_verbose () =
5967 "-verbose_level", Arg.Set_int
verbose_level,
5968 " <int> guess what";
5969 "-disable_pr2_once", Arg.Set
disable_pr2_once,
5970 " to print more messages";
5971 "-show_trace_profile", Arg.Set
show_trace_profile,
5975 let cmdline_flags_other () =
5977 "-nocheck_stack", Arg.Clear
check_stack,
5979 "-batch_mode", Arg.Set
_batch_mode,
5983 (* potentially other common options but not yet integrated:
5985 "-timeout", Arg.Set_int timeout,
5986 " <sec> interrupt LFS or buggy external plugins";
5988 (* can't be factorized because of the $ cvs stuff, we want the date
5989 * of the main.ml file, not common.ml
5991 "-version", Arg.Unit
(fun () ->
5992 pr2 "version: _dollar_Date: 2008/06/14 00:54:22 _dollar_";
5993 raise
(Common.UnixExit
0)
5997 "-shorthelp", Arg.Unit
(fun () ->
5998 !short_usage_func
();
5999 raise
(Common.UnixExit
0)
6001 " see short list of options";
6002 "-longhelp", Arg.Unit
(fun () ->
6004 raise
(Common.UnixExit
0)
6006 "-help", Arg.Unit
(fun () ->
6008 raise
(Common.UnixExit
0)
6011 "--help", Arg.Unit
(fun () ->
6013 raise
(Common.UnixExit
0)
6019 let cmdline_actions () =
6021 "-test_check_stack", " <limit>",
6022 mk_action_1_arg test_check_stack_size;
6026 (*****************************************************************************)
6028 (*****************************************************************************)
6029 (* stuff put here cos of of forward definition limitation of ocaml *)
6032 (* Infix trick, seen in jane street lib and harrop's code, and maybe in GMP *)
6033 module Infix
= struct
6040 let main_boilerplate f =
6041 if not
(!Sys.interactive
) then
6042 exn_to_real_unixexit (fun () ->
6044 Sys.set_signal
Sys.sigint
(Sys.Signal_handle
(fun _ ->
6045 pr2 "C-c intercepted, will do some cleaning before exiting";
6046 (* But if do some try ... with e -> and if do not reraise the exn,
6047 * the bubble never goes at top and so I cant really C-c.
6049 * A solution would be to not raise, but do the erase_temp_file in the
6050 * syshandler, here, and then exit.
6051 * The current solution is to not do some wild try ... with e
6052 * by having in the exn handler a case: UnixExit x -> raise ... | e ->
6054 Sys.set_signal
Sys.sigint
Sys.Signal_default
;
6055 raise
(UnixExit
(-1))
6058 (* The finalize below makes it tedious to go back to exn when use
6059 * 'back' in the debugger. Hence this special case. But the
6060 * Common.debugger will be set in main(), so too late, so
6061 * have to be quicker
6063 if Sys.argv
+> Array.to_list
+> List.exists (fun x -> x =$
= "-debugger")
6064 then debugger := true;
6067 pp_do_in_zero_box (fun () ->
6068 f(); (* <---- here it is *)
6071 if !profile <> PNONE
6072 then pr2 (profile_diagnostic ());
6073 erase_temp_files ();
6076 (* let _ = if not !Sys.interactive then (main ()) *)
6079 (* based on code found in cameleon from maxence guesdon *)
6080 let md5sum_of_string s =
6081 let com = spf "echo %s | md5sum | cut -d\" \" -f 1"
6084 match cmd_to_list com with
6088 | _ -> failwith
"md5sum_of_string wrong output"
6092 let with_pr2_to_string f =
6093 let file = new_temp_file "pr2" "out" in
6094 redirect_stdout_stderr file f;
6097 (* julia: convert something printed using format to print into a string *)
6098 let format_to_string f =
6099 let (nm
,o) = Filename.open_temp_file
"format_to_s" ".out" in
6100 Format.set_formatter_out_channel
o;
6102 Format.print_newline
();
6103 Format.print_flush
();
6104 Format.set_formatter_out_channel stdout
;
6106 let i = open_in nm
in
6107 let lines = ref [] in
6109 let cur = input_line
i in
6110 lines := cur :: !lines;
6112 (try loop() with End_of_file
-> ());
6114 command2 ("rm -f " ^ nm
);
6115 String.concat "\n" (List.rev !lines)
6119 (*****************************************************************************)
6121 (*****************************************************************************)
6123 let (generic_print
: '
a -> string -> string) = fun v typ
->
6124 write_value v "/tmp/generic_print";
6126 ("printf 'let (v:" ^ typ ^
")= Common.get_value \"/tmp/generic_print\" " ^
6128 " | calc.top > /tmp/result_generic_print");
6129 cat "/tmp/result_generic_print"
6130 +> drop_while (fun e -> not
(e =~
"^#.*")) +> tail
6133 if (s =~
".*= \\(.+\\)")
6135 else "error in generic_print, not good format:" ^
s)
6137 (* let main () = pr (generic_print [1;2;3;4] "int list") *)
6139 class ['
a] olist
(ys: '
a list
) =
6143 (* method fold f a = List.fold_left f a xs *)
6144 method fold : '
b. ('
b -> '
a -> '
b) -> '
b -> '
b =
6145 fun f accu
-> List.fold_left f accu
xs
6149 (* let _ = write_value ((new setb[])#add 1) "/tmp/test" *)
6150 let typing_sux_test () =
6151 let x = Obj.magic
[1;2;3] in
6152 let f1 xs = List.iter print_int
xs in
6153 let f2 xs = List.iter print_string
xs in
6156 (* let (test: 'a osetb -> 'a ocollection) = fun o -> (o :> 'a ocollection) *)
6157 (* let _ = test (new osetb (Setb.empty)) *)