This commit was manufactured by cvs2svn to create branch 'init'.

[helm.git] / helm / DEVEL / lablgtk / lablgtk_20001129-0.1.0 / varcc.ml

diff --git a/helm/DEVEL/lablgtk/lablgtk_20001129-0.1.0/varcc.ml b/helm/DEVEL/lablgtk/lablgtk_20001129-0.1.0/varcc.ml
deleted file mode 100644 (file)
index 100bee3..0000000
--- a/helm/DEVEL/lablgtk/lablgtk_20001129-0.1.0/varcc.ml
+++ /dev/null
@@ -1,157 +0,0 @@
-(* $Id$ *)
-
-(* Compile a list of variant tags into CPP defines *) 
-
-(* hash_variant, from ctype.ml *)
-
-let hash_variant s =
-  let accu = ref 0 in
-  for i = 0 to String.length s - 1 do
-    accu := 223 * !accu + Char.code s.[i]
-  done;
-  (* reduce to 31 bits *)
-  accu := !accu land (1 lsl 31 - 1);
-  (* make it signed for 64 bits architectures *)
-  if !accu > 0x3FFFFFFF then !accu - (1 lsl 31) else !accu
-
-open Genlex
-
-let lexer = make_lexer ["type"; "public"; "="; "["; "]"; "`"; "|"]
-
-let may_string = parser
-    [< ' String s >] -> s
-  | [< >] -> ""
-
-let may_bar = parser
-    [< ' Kwd "|" >] -> ()
-  | [< >] -> ()
-
-let rec ident_list = parser
-    [< ' Kwd "`"; ' Ident x; trans = may_string; _ = may_bar; s >] ->
-      (x, trans) :: ident_list s
-  | [< >] -> []
-
-let static = ref false
-let may_public = parser
-    [< ' Kwd "public" >] -> true
-  | [< ' Kwd "private" >] -> false
-  | [< >] -> not !static
-
-open Printf
-
-let hashes = Hashtbl.create 57
-
-let declaration ~hc ~cc = parser
-    [< ' Kwd "type"; public = may_public; ' Ident name; ' Kwd "=";
-       prefix = may_string; ' Kwd "["; _ = may_bar;
-       tags = ident_list; ' Kwd "]"; suffix = may_string >] ->
-    let oh x = fprintf hc x and oc x = fprintf cc x in
-    (* Output tag values to headers *)
-    let first = ref true in
-    List.iter tags ~f:
-      begin fun (tag, _) ->
-        let hash = hash_variant tag in
-        try
-         let tag' = Hashtbl.find hashes hash in
-         if tag <> tag' then
-           failwith (String.concat ~sep:" " ["Doublon tag:";tag;"and";tag'])
-        with Not_found ->
-         Hashtbl.add ~key:hash ~data:tag hashes;
-          if !first then begin
-            oh "/* %s : tags and macros */\n" name; first := false
-          end;
-         oh "#define MLTAG_%s\tVal_int(%d)\n" tag hash;
-      end;
-    (* compute C name *)
-    let ctag tag trans =
-      if trans <> "" then trans else
-      let tag =
-       if tag.[0] = '_' then
-         String.sub tag ~pos:1 ~len:(String.length tag -1)
-       else tag
-      in
-      match
-       if prefix = "" then None, ""
-       else
-         Some (prefix.[String.length prefix - 1]), 
-         String.sub prefix ~pos:0 ~len:(String.length prefix - 1)
-      with
-       Some '#', prefix ->
-         prefix ^ String.uncapitalize tag ^ suffix
-      |        Some '^', prefix ->
-         prefix ^ String.uppercase tag ^ suffix
-      |        _ ->
-         prefix ^ tag ^ suffix
-    and cname =
-      String.capitalize name
-    in
-    let tags =
-      Sort.list tags
-       ~order:(fun (tag1,_) (tag2,_) -> hash_variant tag1 < hash_variant tag2)
-    in
-    (* Output table to code file *)
-    oc "/* %s : conversion table */\n" name;
-    let static = if not public then "static " else "" in
-    oc "%slookup_info ml_table_%s[] = {\n" static name;
-    oc "  { 0, %d },\n" (List.length tags);
-    List.iter tags ~f:
-      begin fun (tag,trans) ->
-       oc "  { MLTAG_%s, %s },\n" tag (ctag tag trans)
-      end;
-    oc "};\n\n";
-    (* Output macros to headers *)
-    if not !first then oh "\n";
-    if public then oh "extern lookup_info ml_table_%s[];\n" name;
-    oh "#define Val_%s(data) ml_lookup_from_c (ml_table_%s, data)\n"
-      name name;
-    oh "#define %s_val(key) ml_lookup_to_c (ml_table_%s, key)\n\n"
-      cname name;
-  | [< >] -> raise End_of_file
-
-
-let process ic ~hc ~cc =  
-  let chars = Stream.of_channel ic in
-  let s = lexer chars in
-  try
-    while true do declaration s ~hc ~cc done
-  with End_of_file -> ()
-  | Stream.Error err ->
-      failwith
-        (Printf.sprintf "Parsing error \"%s\" at character %d on input stream"
-           err (Stream.count chars))
-
-let main () =
-  let inputs = ref [] in
-  let header = ref "" in
-  let code = ref "" in
-  Arg.parse ~errmsg:"usage: varcc [options] file.var" ~keywords:
-    [ "-h", Arg.String ((:=) header), "file to output macros (file.h)";
-      "-c", Arg.String ((:=) code),
-      "file to output conversion tables (file.c)";
-      "-static", Arg.Set static, "do not export conversion tables" ]
-    ~others:(fun s -> inputs := s :: !inputs);
-  let inputs = List.rev !inputs in
-  begin match inputs with
-  | [] ->
-      if !header = "" then header := "a.h";
-      if !code = "" then code := "a.c"
-  | ip :: _ ->
-      let rad =
-        if Filename.check_suffix ip ".var" then Filename.chop_extension ip
-        else ip in
-      if !header = "" then header := rad ^ ".h";
-      if !code = "" then code := rad ^ ".c"
-  end;
-  let hc = open_out !header and cc = open_out !code in
-  let chars = Stream.of_channel stdin in
-  if inputs = [] then process stdin ~hc ~cc else begin
-    List.iter inputs ~f:
-      begin fun file ->
-        let ic = open_in file in
-        try process ic ~hc ~cc; close_in ic
-        with exn -> close_in ic; prerr_endline ("Error in " ^ file); raise exn
-      end
-  end;
-  close_out hc; close_out cc
-
-let _ = Printexc.print main ()