src/Pure/Thy/present.ML
author wenzelm
Tue Oct 05 15:34:27 1999 +0200 (1999-10-05)
changeset 7727 b52c7d773121
parent 7685 3edd32d588a6
child 7752 7ee322caf59c
permissions -rw-r--r--
include browser_info stuff;
tex source presentation;
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(*  Title:      Pure/Thy/present.ML
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    ID:         $Id$
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    Author:     Stefan Berghofer and Markus Wenzel, TU Muenchen
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Theory presentation (HTML, graph files, simple LaTeX documents).
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*)
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signature BASIC_PRESENT =
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sig
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  val section: string -> unit
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end;
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signature PRESENT =
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sig
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  include BASIC_PRESENT
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  val init: bool -> string -> string list -> string -> Url.T option * bool -> unit
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  val finish: unit -> unit
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  val init_theory: string -> unit
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  val verbatim_source: string -> (unit -> string list) -> unit
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  val token_source: string -> (unit -> OuterLex.token list) -> unit
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  val begin_theory: string -> string list -> (Path.T * bool) list -> theory -> theory
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  val result: string -> string -> thm -> unit
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  val results: string -> string -> thm list -> unit
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  val theorem: string -> thm -> unit
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  val theorems: string -> thm list -> unit
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  val subsection: string -> unit
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  val subsubsection: string -> unit
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  val setup: (theory -> theory) list
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end;
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structure Present: PRESENT =
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struct
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(** paths **)
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val output_path = Path.variable "ISABELLE_BROWSER_INFO";
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fun top_path sess_path offset =
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  Path.append (Path.appends (replicate (offset + length sess_path) Path.parent));
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val tex_ext = Path.ext "tex";
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val tex_path = tex_ext o Path.basic;
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val html_ext = Path.ext "html";
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val html_path = html_ext o Path.basic;
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val graph_path = Path.ext "graph" o Path.basic;
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val index_path = Path.basic "index.html";
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val doc_path = Path.basic "document";
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val doc_index_path = tex_path "session";
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val session_path = Path.basic ".session";
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val session_entries_path = Path.unpack ".session/entries";
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val pre_index_path = Path.unpack ".session/pre-index";
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(** additional theory data **)
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structure BrowserInfoArgs =
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struct
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  val name = "Pure/browser_info";
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  type T = {session: string list, is_local: bool};
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  val empty = {session = [], is_local = false};
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  val copy = I;
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  val prep_ext  = I;
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  fun merge _ = empty;
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  fun print _ _ = ();
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end;
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structure BrowserInfoData = TheoryDataFun(BrowserInfoArgs);
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fun get_info thy =
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  if Theory.eq_thy (thy, ProtoPure.thy) then BrowserInfoArgs.empty
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  else BrowserInfoData.get thy;
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(** graphs **)
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type graph_node =
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  {name: string, ID: string, dir: string, unfold: bool,
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   path: string, parents: string list};
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fun get_graph path = map (fn (a :: b :: c :: d :: e :: r) =>
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  {name = unenclose a, ID = unenclose b,
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   dir = unenclose c, unfold = (d = "+"),
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   path = unenclose (if d = "+" then e else d),
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   parents = map unenclose (fst (split_last (if d = "+" then tl r else r)))})
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     (map (filter_out (equal "") o space_explode " ") (split_lines (File.read path)));
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fun put_graph gr path =
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    File.write path (cat_lines (map (fn {name, ID, dir, unfold, path, parents} =>
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      "\"" ^ name ^ "\" \"" ^ ID ^ "\" \"" ^ dir ^ (if unfold then "\" + \"" else "\" \"") ^
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      path ^ "\" > " ^ space_implode " " (map quote parents) ^ " ;") gr));
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fun dir_of sess = space_implode "/" (case sess of
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  [] => ["Pure"] | [x] => [x, "base"] | xs => xs);
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fun ID_of sess s = dir_of sess ^ "/" ^ s;
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(* retrieve graph data from theory loader database *)
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fun make_graph remote_path unfold curr_sess = map (fn name =>
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  let
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    val {session, is_local} = get_info (ThyInfo.theory name);
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    val path' = Path.append (Path.make session) (html_path name)
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  in
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    {name = name, ID = ID_of session name, dir = dir_of session,
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     path = if null session then "" else
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            if is_some remote_path andalso not is_local then
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              Url.pack (Url.append (the remote_path) (Url.file path'))
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            else Path.pack (top_path curr_sess 2 path'),
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     unfold = unfold andalso (length session = 1),
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     parents = map (fn s => ID_of (#session (get_info (ThyInfo.theory s))) s)
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       (ThyInfo.get_preds name)}
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  end) (ThyInfo.names ());
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fun add_graph_entry' (entry as {ID, ...}) (gr : graph_node list) =
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  filter_out (fn entry' => #ID entry' = ID) gr @ [entry];
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(** global browser info state **)
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(* type theory_info *)
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type theory_info = {tex_source: Buffer.T, html_source: Buffer.T, html: Buffer.T};
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fun make_theory_info (tex_source, html_source, html) =
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  {tex_source = tex_source, html_source = html_source, html = html}: theory_info;
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val empty_theory_info = make_theory_info (Buffer.empty, Buffer.empty, Buffer.empty);
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fun map_theory_info f {tex_source, html_source, html} =
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  make_theory_info (f (tex_source, html_source, html));
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(* type browser_info *)
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type browser_info = {theories: theory_info Symtab.table, tex_index: Buffer.T,
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  html_index: Buffer.T, graph: graph_node list, all_graph: graph_node list};
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fun make_browser_info (theories, tex_index, html_index, graph, all_graph) =
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  {theories = theories, tex_index = tex_index, html_index = html_index,
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    graph = graph, all_graph = all_graph}: browser_info;
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val empty_browser_info = make_browser_info (Symtab.empty, Buffer.empty, Buffer.empty, [], []);
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fun initial_browser_info remote_path graph_path curr_sess = make_browser_info
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  (Symtab.empty, Buffer.empty, Buffer.empty, make_graph remote_path false curr_sess,
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   if_none (try get_graph graph_path) (make_graph remote_path true [""]));
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fun map_browser_info f {theories, tex_index, html_index, graph, all_graph} =
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  make_browser_info (f (theories, tex_index, html_index, graph, all_graph));
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(* state *)
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val browser_info = ref empty_browser_info;
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fun change_browser_info f = browser_info := map_browser_info f (! browser_info);
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fun init_theory_info name info =
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  change_browser_info (fn (theories, tex_index, html_index, graph, all_graph) =>
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    (Symtab.update ((name, info), theories), tex_index, html_index, graph, all_graph));
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fun change_theory_info name f =
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  change_browser_info (fn (info as (theories, tex_index, html_index, graph, all_graph)) =>
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    (case Symtab.lookup (theories, name) of
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      None => (warning ("Browser info: cannot access theory document " ^ quote name); info)
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    | Some info => (Symtab.update ((name, map_theory_info f info), theories),
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        tex_index, html_index, graph, all_graph)));
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fun add_tex_index txt =
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  change_browser_info (fn (theories, tex_index, html_index, graph, all_graph) =>
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    (theories, Buffer.add txt tex_index, html_index, graph, all_graph));
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fun add_html_index txt =
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  change_browser_info (fn (theories, tex_index, html_index, graph, all_graph) =>
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    (theories, tex_index, Buffer.add txt html_index, graph, all_graph));
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(*add entry to graph for current session*)
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fun add_graph_entry e =
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  change_browser_info (fn (theories, tex_index, html_index, graph, all_graph) =>
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    (theories, tex_index, html_index, add_graph_entry' e graph, all_graph));
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(*add entry to graph for all sessions*)
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fun add_all_graph_entry e =
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  change_browser_info (fn (theories, tex_index, html_index, graph, all_graph) =>
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    (theories, tex_index, html_index, graph, add_graph_entry' e all_graph));
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fun add_tex_source name txt = change_theory_info name (fn (tex_source, html_source, html) =>
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  (Buffer.add txt tex_source, html_source, html));
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fun add_html_source name txt = change_theory_info name (fn (tex_source, html_source, html) =>
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  (tex_source, Buffer.add txt html_source, html));
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fun add_html name txt = change_theory_info name (fn (tex_source, html_source, html) =>
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  (tex_source, html_source, Buffer.add txt html));
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(** global session state **)
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(* session_info *)
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type session_info =
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  {name: string, parent: string, session: string, path: string list, html_prefix: Path.T,
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    doc_prefix: Path.T option, graph_path: Path.T, all_graph_path: Path.T,
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    remote_path: Url.T option};
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fun make_session_info (name, parent, session, path, html_prefix, doc_prefix,
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    graph_path, all_graph_path, remote_path) =
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  {name = name, parent = parent, session = session, path = path,
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    html_prefix = html_prefix, doc_prefix = doc_prefix, graph_path = graph_path,
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    all_graph_path = all_graph_path, remote_path = remote_path}: session_info;
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(* state *)
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val session_info = ref (None: session_info option);
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fun with_session x f = (case ! session_info of None => x | Some info => f info);
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fun with_context f = f (PureThy.get_name (Context.the_context ()));
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(** HTML output **)
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(* maintain index *)
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val session_entries =
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  HTML.session_entries o
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    map (fn name => (Url.file (Path.append (Path.basic name) index_path), name));
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fun get_entries dir =
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  split_lines (File.read (Path.append dir session_entries_path));
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fun put_entries entries dir =
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  File.write (Path.append dir session_entries_path) (cat_lines entries);
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fun create_index dir =
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  File.read (Path.append dir pre_index_path) ^
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    session_entries (get_entries dir) ^ HTML.end_index
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  |> File.write (Path.append dir index_path);
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fun update_index dir name =
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  (case try get_entries dir of
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    None => warning ("Browser info: cannot access session index of " ^ quote (Path.pack dir))
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  | Some es => (put_entries ((es \ name) @ [name]) dir; create_index dir));
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(* init session *)
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fun name_of_session elems = space_implode "/" ("Isabelle" :: elems);
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fun could_copy inpath outpath =
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  if File.exists inpath then (File.copy inpath outpath; true)
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  else false;
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fun init false _ _ _ _ = (browser_info := empty_browser_info; session_info := None)
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  | init true doc path name (remote_path, first_time) =
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      let
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        val parent_name = name_of_session (take (length path - 1, path));
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        val session_name = name_of_session path;
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        val sess_prefix = Path.make path;
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        val out_path = Path.expand output_path;
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        val html_prefix = Path.append out_path sess_prefix;
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        val (doc_prefix, document_path) =
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          if doc = "" then (None, None)
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          else (Some (Path.append html_prefix doc_path), Some (Path.ext doc doc_path));
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        val graph_prefix = Path.appends [out_path, Path.unpack "graph/data", sess_prefix];
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        val graph_path = Path.append graph_prefix (Path.basic "session.graph");
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        val graph_lnk = Url.file (top_path path 0 (Path.appends
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          [Path.unpack "graph/data", sess_prefix, Path.basic "medium.html"]));
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        val graph_up_lnk =
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          (Url.file (top_path path 2 (Path.append sess_prefix index_path)), session_name);
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        val codebase = Url.file (top_path path 1 Path.current);
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        val all_graph_path = Path.appends [out_path, Path.unpack "graph/data",
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          Path.basic (hd path), Path.basic "all_sessions.graph"];
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        val _ = (File.mkdir html_prefix; File.mkdir graph_prefix);
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        fun prep_readme readme =
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          let val readme_path = Path.basic readme in
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            if could_copy readme_path (Path.append html_prefix readme_path) then Some readme_path
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            else None
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          end;
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        val opt_readme =
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          (case prep_readme "README.html" of None => prep_readme "README" | some => some);
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        val parent_index_path = Path.append Path.parent index_path;
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        val index_up_lnk = if first_time then
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            Url.append (the remote_path) (Url.file (Path.append sess_prefix parent_index_path))
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          else Url.file parent_index_path;
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        val index_text = HTML.begin_index (index_up_lnk, parent_name)
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          (Url.file index_path, session_name) (apsome Url.file opt_readme)
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            (apsome Url.file document_path) graph_lnk;
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      in
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        File.mkdir (Path.append html_prefix session_path);
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        File.write (Path.append html_prefix session_entries_path) "";
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        if is_some doc_prefix then File.copy_all doc_path html_prefix else ();
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        seq (fn (name, txt) => File.write (Path.append graph_prefix (Path.basic name)) txt)
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          (HTML.applet_pages session_name codebase graph_up_lnk (length path = 1));
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        session_info := Some (make_session_info (name, parent_name, session_name, path,
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          html_prefix, doc_prefix, graph_path, all_graph_path, remote_path));
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        browser_info := initial_browser_info remote_path all_graph_path path;
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        add_html_index index_text
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      end;
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(* finish session *)
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fun finish () = with_session ()
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    (fn {name, html_prefix, doc_prefix, graph_path, all_graph_path, path, ...} =>
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  let
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    val {theories, tex_index, html_index, graph, all_graph} = ! browser_info;
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    fun finish_node (a, {tex_source, html_source = _, html}) =
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     (apsome (fn p => Buffer.write (Path.append p (tex_path a)) tex_source) doc_prefix;
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      Buffer.write (Path.append html_prefix (html_path a)) (Buffer.add HTML.end_theory html));
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  in
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    seq finish_node (Symtab.dest theories);
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    Buffer.write (Path.append html_prefix pre_index_path) html_index;
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    apsome (fn p => Buffer.write (Path.append p doc_index_path) tex_index) doc_prefix;
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    put_graph graph graph_path;
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    put_graph all_graph all_graph_path;
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    create_index html_prefix;
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    update_index (Path.append html_prefix Path.parent) name;
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    browser_info := empty_browser_info;
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    session_info := None
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  end);
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(* theory elements *)
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fun init_theory name = with_session () (fn _ => init_theory_info name empty_theory_info);
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fun verbatim_source name mk_text =
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  with_session () (fn _ => add_html_source name (HTML.verbatim_source (mk_text ())));
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fun token_source name mk_toks =
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  with_session () (fn _ => add_tex_source name (Latex.token_source (mk_toks ())));
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fun parent_link remote_path curr_session name =
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  let
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    val {session, is_local} = get_info (ThyInfo.theory name);
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    val path = Path.append (Path.make session) (html_path name)
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  in (if null session then None else
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     Some (if is_some remote_path andalso not is_local then
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       Url.append (the remote_path) (Url.file path)
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     else Url.file (top_path curr_session 0 path)), name)
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  end;
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fun begin_theory name raw_parents orig_files thy =
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  with_session thy (fn {session, path, html_prefix, remote_path, ...} =>
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  let
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    val parents = map (parent_link remote_path path) raw_parents;
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    val ml_path = ThyLoad.ml_path name;
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    val files = map (apsnd Some) orig_files @
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      (if is_some (ThyLoad.check_file ml_path) then [(ml_path, None)] else []);
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    fun prep_file (raw_path, loadit) =
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      (case ThyLoad.check_file raw_path of
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        Some (path, _) =>
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          let
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            val base = Path.base path;
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            val base_html = html_ext base;
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          in
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            File.write (Path.append html_prefix base_html)
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              (HTML.ml_file (Url.file base) (File.read path));
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            (Some (Url.file base_html), Url.file raw_path, loadit)
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          end
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      | None => (warning ("Browser info: expected to find ML file" ^ quote (Path.pack raw_path));
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          (None, Url.file raw_path, loadit)));
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    val files_html = map prep_file files;
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    fun prep_html_source (tex_source, html_source, html) =
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      let
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        val txt = HTML.begin_theory (Url.file index_path, session)
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          name parents files_html (Buffer.content html_source)
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      in (tex_source, Buffer.empty, Buffer.add txt html) end;
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    fun make_entry unfold all =
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      {name = name, ID = ID_of path name, dir = dir_of path, unfold = unfold,
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       path = Path.pack (top_path (if all then [""] else path) 2
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         (Path.append (Path.make path) (html_path name))),
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       parents = map (fn s => ID_of (#session (get_info (ThyInfo.theory s))) s) raw_parents};
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  in
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    change_theory_info name prep_html_source;
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    add_all_graph_entry (make_entry (length path = 1) true);
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    add_graph_entry (make_entry true false);
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    add_html_index (HTML.theory_entry (Url.file (html_path name), name));
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    add_tex_index (Latex.theory_entry name);
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    BrowserInfoData.put {session = path, is_local = is_some remote_path} thy
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  end);
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fun result k a thm = with_session () (fn _ => with_context add_html (HTML.result k a thm));
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fun results k a thms = with_session () (fn _ => with_context add_html (HTML.results k a thms));
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fun theorem a thm = with_session () (fn _ => with_context add_html (HTML.theorem a thm));
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fun theorems a thms = with_session () (fn _ => with_context add_html (HTML.theorems a thms));
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fun section s = with_session () (fn _ => with_context add_html (HTML.section s));
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fun subsection s = with_session () (fn _ => with_context add_html (HTML.subsection s));
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fun subsubsection s = with_session () (fn _ => with_context add_html (HTML.subsubsection s));
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(** theory setup **)
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val setup = [BrowserInfoData.init];
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   424
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   425
end;
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   427
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structure BasicPresent: BASIC_PRESENT = Present;
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open BasicPresent;