src/Pure/Thy/present.ML
author wenzelm
Mon Aug 27 14:34:54 2012 +0200 (2012-08-27)
changeset 48933 d25e47e32bc0
parent 48805 c3ea910b3581
child 48935 4c92a2f310b6
permissions -rw-r--r--
tuned;
     1 (*  Title:      Pure/Thy/present.ML
     2     Author:     Markus Wenzel and Stefan Berghofer, TU Muenchen
     3 
     4 Theory presentation: HTML, graph files, (PDF)LaTeX documents.
     5 *)
     6 
     7 signature BASIC_PRESENT =
     8 sig
     9   val no_document: ('a -> 'b) -> 'a -> 'b  (*not thread-safe!*)
    10 end;
    11 
    12 signature PRESENT =
    13 sig
    14   include BASIC_PRESENT
    15   val session_name: theory -> string
    16   val write_graph: {name: string, ID: string, dir: string, unfold: bool,
    17    path: string, parents: string list} list -> Path.T -> unit
    18   val display_graph: {name: string, ID: string, dir: string, unfold: bool,
    19    path: string, parents: string list} list -> unit
    20   datatype dump_mode = Dump_all | Dump_tex | Dump_tex_sty
    21   val dump_mode: string -> dump_mode
    22   val read_variant: string -> string * string
    23   val init: bool -> bool -> string -> string -> bool -> string -> (string * string) list ->
    24     string list -> string -> string * dump_mode -> Url.T option * bool -> bool ->
    25     theory list -> unit  (*not thread-safe!*)
    26   val finish: unit -> unit  (*not thread-safe!*)
    27   val init_theory: string -> unit
    28   val theory_source: string -> (unit -> HTML.text) -> unit
    29   val theory_output: string -> string -> unit
    30   val begin_theory: int -> Path.T -> (Path.T * bool) list -> theory -> theory
    31   val drafts: string -> Path.T list -> Path.T
    32 end;
    33 
    34 structure Present: PRESENT =
    35 struct
    36 
    37 
    38 (** paths **)
    39 
    40 val tex_ext = Path.ext "tex";
    41 val tex_path = tex_ext o Path.basic;
    42 val html_ext = Path.ext "html";
    43 val html_path = html_ext o Path.basic;
    44 val index_path = Path.basic "index.html";
    45 val readme_html_path = Path.basic "README.html";
    46 val readme_path = Path.basic "README";
    47 val documentN = "document";
    48 val document_path = Path.basic documentN;
    49 val doc_indexN = "session";
    50 val graph_path = Path.basic "session.graph";
    51 val graph_pdf_path = Path.basic "session_graph.pdf";
    52 val graph_eps_path = Path.basic "session_graph.eps";
    53 
    54 val session_path = Path.basic ".session";
    55 val session_entries_path = Path.explode ".session/entries";
    56 val pre_index_path = Path.explode ".session/pre-index";
    57 
    58 fun mk_rel_path [] ys = Path.make ys
    59   | mk_rel_path xs [] = Path.appends (replicate (length xs) Path.parent)
    60   | mk_rel_path (ps as x :: xs) (qs as y :: ys) = if x = y then mk_rel_path xs ys else
    61       Path.appends (replicate (length ps) Path.parent @ [Path.make qs]);
    62 
    63 fun show_path path = Path.implode (Path.append (File.pwd ()) path);
    64 
    65 
    66 
    67 (** additional theory data **)
    68 
    69 structure Browser_Info = Theory_Data
    70 (
    71   type T = {name: string, session: string list, is_local: bool};
    72   val empty = {name = "", session = [], is_local = false}: T;
    73   fun extend _ = empty;
    74   fun merge _ = empty;
    75 );
    76 
    77 val put_info = Browser_Info.put;
    78 val get_info = Browser_Info.get;
    79 val session_name = #name o get_info;
    80 
    81 
    82 
    83 (** graphs **)
    84 
    85 type graph_node =
    86   {name: string, ID: string, dir: string, unfold: bool,
    87    path: string, parents: string list};
    88 
    89 fun write_graph gr path =
    90   File.write path (cat_lines (map (fn {name, ID, dir, unfold, path, parents} =>
    91     "\"" ^ name ^ "\" \"" ^ ID ^ "\" \"" ^ dir ^ (if unfold then "\" + \"" else "\" \"") ^
    92     path ^ "\" > " ^ space_implode " " (map quote parents) ^ " ;") gr));
    93 
    94 fun display_graph gr =
    95   let
    96     val path = Isabelle_System.create_tmp_path "graph" "";
    97     val _ = write_graph gr path;
    98     val _ = writeln "Displaying graph ...";
    99     val _ = Isabelle_System.isabelle_tool "browser" ("-c " ^ File.shell_path path ^ " &");
   100   in () end;
   101 
   102 
   103 fun ID_of sess s = space_implode "/" (sess @ [s]);
   104 fun ID_of_thy thy = ID_of (#session (get_info thy)) (Context.theory_name thy);
   105 
   106 
   107 (*retrieve graph data from initial collection of theories*)
   108 fun init_graph remote_path curr_sess = rev o map (fn thy =>
   109   let
   110     val name = Context.theory_name thy;
   111     val {name = sess_name, session, is_local} = get_info thy;
   112     val entry =
   113      {name = name, ID = ID_of session name, dir = sess_name,
   114       path =
   115         if null session then "" else
   116         if is_some remote_path andalso not is_local then
   117           Url.implode (Url.append (the remote_path) (Url.File
   118             (Path.append (Path.make session) (html_path name))))
   119         else Path.implode (Path.append (mk_rel_path curr_sess session) (html_path name)),
   120       unfold = false,
   121       parents = map ID_of_thy (Theory.parents_of thy)};
   122   in (0, entry) end);
   123 
   124 fun ins_graph_entry (i, entry as {ID, ...}) (gr: (int * graph_node) list) =
   125   (i, entry) :: filter_out (fn (_, entry') => #ID entry' = ID) gr;
   126 
   127 
   128 
   129 (** global browser info state **)
   130 
   131 (* type theory_info *)
   132 
   133 type theory_info = {tex_source: Buffer.T, html_source: Buffer.T, html: Buffer.T};
   134 
   135 fun make_theory_info (tex_source, html_source, html) =
   136   {tex_source = tex_source, html_source = html_source, html = html}: theory_info;
   137 
   138 val empty_theory_info = make_theory_info (Buffer.empty, Buffer.empty, Buffer.empty);
   139 
   140 fun map_theory_info f {tex_source, html_source, html} =
   141   make_theory_info (f (tex_source, html_source, html));
   142 
   143 
   144 (* type browser_info *)
   145 
   146 type browser_info = {theories: theory_info Symtab.table, files: (Path.T * string) list,
   147   tex_index: (int * string) list, html_index: (int * string) list, graph: (int * graph_node) list};
   148 
   149 fun make_browser_info (theories, files, tex_index, html_index, graph) =
   150   {theories = theories, files = files, tex_index = tex_index, html_index = html_index,
   151     graph = graph}: browser_info;
   152 
   153 val empty_browser_info = make_browser_info (Symtab.empty, [], [], [], []);
   154 
   155 fun init_browser_info remote_path curr_sess thys = make_browser_info
   156   (Symtab.empty, [], [], [], init_graph remote_path curr_sess thys);
   157 
   158 fun map_browser_info f {theories, files, tex_index, html_index, graph} =
   159   make_browser_info (f (theories, files, tex_index, html_index, graph));
   160 
   161 
   162 (* state *)
   163 
   164 val browser_info = Unsynchronized.ref empty_browser_info;
   165 fun change_browser_info f =
   166   CRITICAL (fn () => Unsynchronized.change browser_info (map_browser_info f));
   167 
   168 val suppress_tex_source = Unsynchronized.ref false;
   169 fun no_document f x = Unsynchronized.setmp suppress_tex_source true f x;
   170 
   171 fun init_theory_info name info =
   172   change_browser_info (fn (theories, files, tex_index, html_index, graph) =>
   173     (Symtab.update (name, info) theories, files, tex_index, html_index, graph));
   174 
   175 fun change_theory_info name f =
   176   change_browser_info (fn (theories, files, tex_index, html_index, graph) =>
   177     (case Symtab.lookup theories name of
   178       NONE => error ("Browser info: cannot access theory document " ^ quote name)
   179     | SOME info => (Symtab.update (name, map_theory_info f info) theories, files,
   180         tex_index, html_index, graph)));
   181 
   182 
   183 fun add_file file =
   184   change_browser_info (fn (theories, files, tex_index, html_index, graph) =>
   185     (theories, file :: files, tex_index, html_index, graph));
   186 
   187 fun add_tex_index txt =
   188   change_browser_info (fn (theories, files, tex_index, html_index, graph) =>
   189     (theories, files, txt :: tex_index, html_index, graph));
   190 
   191 fun add_html_index txt =
   192   change_browser_info (fn (theories, files, tex_index, html_index, graph) =>
   193     (theories, files, tex_index, txt :: html_index, graph));
   194 
   195 fun add_graph_entry entry =
   196   change_browser_info (fn (theories, files, tex_index, html_index, graph) =>
   197     (theories, files, tex_index, html_index, ins_graph_entry entry graph));
   198 
   199 fun add_tex_source name txt =
   200   if ! suppress_tex_source then ()
   201   else change_theory_info name (fn (tex_source, html_source, html) =>
   202     (Buffer.add txt tex_source, html_source, html));
   203 
   204 fun add_html_source name txt = change_theory_info name (fn (tex_source, html_source, html) =>
   205   (tex_source, Buffer.add txt html_source, html));
   206 
   207 
   208 
   209 (** global session state **)
   210 
   211 (* session_info *)
   212 
   213 datatype dump_mode = Dump_all | Dump_tex | Dump_tex_sty;
   214 
   215 fun dump_mode "all" = Dump_all
   216   | dump_mode "tex" = Dump_tex
   217   | dump_mode "tex+sty" = Dump_tex_sty
   218   | dump_mode s =
   219       error ("Illegal document dump mode: " ^ quote s ^ " (expected \"all\", \"tex\", \"tex+sty\")");
   220 
   221 type session_info =
   222   {name: string, parent: string, session: string, path: string list, html_prefix: Path.T,
   223     info: bool, doc_format: string, doc_graph: bool, doc_output: Path.T option,
   224     documents: (string * string) list, doc_dump: (string * dump_mode), remote_path: Url.T option,
   225     verbose: bool, readme: Path.T option};
   226 
   227 fun make_session_info
   228   (name, parent, session, path, html_prefix, info, doc_format, doc_graph, doc_output,
   229     documents, doc_dump, remote_path, verbose, readme) =
   230   {name = name, parent = parent, session = session, path = path, html_prefix = html_prefix,
   231     info = info, doc_format = doc_format, doc_graph = doc_graph, doc_output = doc_output,
   232     documents = documents, doc_dump = doc_dump, remote_path = remote_path,
   233     verbose = verbose, readme = readme}: session_info;
   234 
   235 
   236 (* state *)
   237 
   238 val session_info = Unsynchronized.ref (NONE: session_info option);
   239 
   240 fun session_default x f = (case ! session_info of NONE => x | SOME info => f info);
   241 
   242 
   243 
   244 (** document preparation **)
   245 
   246 (* maintain index *)
   247 
   248 val session_entries =
   249   HTML.session_entries o
   250     map (fn name => (Url.File (Path.append (Path.basic name) index_path), name));
   251 
   252 fun get_entries dir =
   253   split_lines (File.read (Path.append dir session_entries_path));
   254 
   255 fun put_entries entries dir =
   256   File.write (Path.append dir session_entries_path) (cat_lines entries);
   257 
   258 
   259 fun create_index dir =
   260   File.read (Path.append dir pre_index_path) ^
   261     session_entries (get_entries dir) ^ HTML.end_document
   262   |> File.write (Path.append dir index_path);
   263 
   264 fun update_index dir name =
   265   (case try get_entries dir of
   266     NONE => warning ("Browser info: cannot access session index of " ^ Path.print dir)
   267   | SOME es => (put_entries ((remove (op =) name es) @ [name]) dir; create_index dir));
   268 
   269 
   270 (* document variants *)
   271 
   272 fun read_variant str =
   273   (case space_explode "=" str of
   274     [name] => (name, "")
   275   | [name, tags] => (name, tags)
   276   | _ => error ("Malformed document variant specification: " ^ quote str));
   277 
   278 
   279 (* init session *)
   280 
   281 fun name_of_session elems = space_implode "/" ("Isabelle" :: elems);
   282 
   283 fun init build info info_path doc doc_graph document_output doc_variants path name
   284     (doc_dump as (dump_prefix, _)) (remote_path, first_time) verbose thys =
   285   if not build andalso not info andalso doc = "" andalso dump_prefix = "" then
   286     (browser_info := empty_browser_info; session_info := NONE)
   287   else
   288     let
   289       val parent_name = name_of_session (take (length path - 1) path);
   290       val session_name = name_of_session path;
   291       val sess_prefix = Path.make path;
   292       val html_prefix = Path.append (Path.expand (Path.explode info_path)) sess_prefix;
   293       val doc_output = if document_output = "" then NONE else SOME (Path.explode document_output);
   294 
   295       val documents =
   296         if doc = "" then []
   297         else if not (can File.check_dir document_path) then
   298           (if verbose then Output.physical_stderr "Warning: missing document directory\n"
   299            else (); [])
   300         else doc_variants;
   301 
   302       val parent_index_path = Path.append Path.parent index_path;
   303       val index_up_lnk =
   304         if first_time then
   305           Url.append (the remote_path) (Url.File (Path.append sess_prefix parent_index_path))
   306         else Url.File parent_index_path;
   307       val readme =
   308         if File.exists readme_html_path then SOME readme_html_path
   309         else if File.exists readme_path then SOME readme_path
   310         else NONE;
   311 
   312       val docs =
   313         (case readme of NONE => [] | SOME p => [(Url.File p, "README")]) @
   314           map (fn (name, _) => (Url.File (Path.ext doc (Path.basic name)), name)) documents;
   315       val index_text = HTML.begin_index (index_up_lnk, parent_name)
   316         (Url.File index_path, session_name) docs (Url.explode "medium.html");
   317     in
   318       session_info :=
   319         SOME (make_session_info (name, parent_name, session_name, path, html_prefix, info, doc,
   320           doc_graph, doc_output, documents, doc_dump, remote_path, verbose, readme));
   321       browser_info := init_browser_info remote_path path thys;
   322       add_html_index (0, index_text)
   323     end;
   324 
   325 
   326 (* isabelle tool wrappers *)
   327 
   328 fun isabelle_document {verbose, purge} format name tags dir =
   329   let
   330     val s = "\"$ISABELLE_TOOL\" document" ^ (if purge then " -c" else "") ^ " -o '" ^ format ^ "' \
   331       \-n '" ^ name ^ "' -t '" ^ tags ^ "' " ^ File.shell_path dir ^ " 2>&1";
   332     val doc_path = Path.appends [dir, Path.parent, Path.basic name |> Path.ext format];
   333     val _ = if verbose then writeln s else ();
   334     val (out, rc) = Isabelle_System.bash_output s;
   335     val _ =
   336       if not (File.exists doc_path) orelse rc <> 0 then
   337         cat_error out ("Failed to build document " ^ quote (show_path doc_path))
   338       else if verbose then writeln out
   339       else ();
   340   in doc_path end;
   341 
   342 fun isabelle_browser graph = Isabelle_System.with_tmp_dir "browser" (fn dir =>
   343   let
   344     val pdf_path = Path.append dir graph_pdf_path;
   345     val eps_path = Path.append dir graph_eps_path;
   346     val graph_path = Path.append dir graph_path;
   347     val _ = write_graph graph graph_path;
   348     val args = "-o " ^ File.shell_path pdf_path ^ " " ^ File.shell_path graph_path;
   349   in
   350     if Isabelle_System.isabelle_tool "browser" args = 0 andalso
   351       File.exists pdf_path andalso File.exists eps_path
   352     then (File.read pdf_path, File.read eps_path)
   353     else error "Failed to prepare dependency graph"
   354   end);
   355 
   356 
   357 (* finish session -- output all generated text *)
   358 
   359 fun sorted_index index = map snd (sort (int_ord o pairself fst) (rev index));
   360 fun index_buffer index = Buffer.add (implode (sorted_index index)) Buffer.empty;
   361 
   362 fun write_tex src name path =
   363   File.write_buffer (Path.append path (tex_path name)) src;
   364 
   365 fun write_tex_index tex_index path =
   366   write_tex (index_buffer tex_index |> Buffer.add Latex.tex_trailer) doc_indexN path;
   367 
   368 
   369 fun finish () =
   370   session_default () (fn {name, info, html_prefix, doc_format, doc_graph, doc_output,
   371     documents, doc_dump = (dump_prefix, dump_mode), path, verbose, readme, ...} =>
   372   let
   373     val {theories, files, tex_index, html_index, graph} = ! browser_info;
   374     val thys = Symtab.dest theories;
   375     val parent_html_prefix = Path.append html_prefix Path.parent;
   376 
   377     fun finish_html (a, {html, ...}: theory_info) =
   378       File.write_buffer (Path.append html_prefix (html_path a)) (Buffer.add HTML.end_document html);
   379 
   380     val sorted_graph = sorted_index graph;
   381     val opt_graphs =
   382       if doc_graph andalso (not (null documents) orelse dump_prefix <> "") then
   383         SOME (isabelle_browser sorted_graph)
   384       else NONE;
   385 
   386     val _ =
   387       if info then
   388        (Isabelle_System.mkdirs (Path.append html_prefix session_path);
   389         File.write_buffer (Path.append html_prefix pre_index_path) (index_buffer html_index);
   390         File.write (Path.append html_prefix session_entries_path) "";
   391         create_index html_prefix;
   392         if length path > 1 then update_index parent_html_prefix name else ();
   393         (case readme of NONE => () | SOME path => File.copy path html_prefix);
   394         write_graph sorted_graph (Path.append html_prefix graph_path);
   395         Isabelle_System.isabelle_tool "browser" "-b";
   396         File.copy (Path.explode "~~/lib/browser/GraphBrowser.jar") html_prefix;
   397         List.app (fn (a, txt) => File.write (Path.append html_prefix (Path.basic a)) txt)
   398           (HTML.applet_pages name (Url.File index_path, name));
   399         File.copy (Path.explode "~~/etc/isabelle.css") html_prefix;
   400         List.app finish_html thys;
   401         List.app (uncurry File.write) files;
   402         if verbose then Output.physical_stderr ("Browser info at " ^ show_path html_prefix ^ "\n")
   403         else ())
   404       else ();
   405 
   406     fun prepare_sources doc_dir doc_mode =
   407      (Isabelle_System.mkdirs doc_dir;
   408       (case doc_mode of
   409         Dump_all => Isabelle_System.copy_dir document_path doc_dir
   410       | Dump_tex_sty =>
   411           ignore (Isabelle_System.isabelle_tool "latex"
   412             ("-o sty " ^ File.shell_path (Path.append doc_dir (Path.basic "root.tex"))))
   413       | Dump_tex => ());
   414       (case opt_graphs of NONE => () | SOME (pdf, eps) =>
   415         (File.write (Path.append doc_dir graph_pdf_path) pdf;
   416           File.write (Path.append doc_dir graph_eps_path) eps));
   417       write_tex_index tex_index doc_dir;
   418       List.app (fn (a, {tex_source, ...}) => write_tex tex_source a doc_dir) thys);
   419 
   420     val _ =
   421       if dump_prefix = "" then ()
   422       else
   423         let
   424           val path = Path.explode dump_prefix;
   425           val _ = prepare_sources path dump_mode;
   426         in
   427           if verbose then
   428             Output.physical_stderr ("Document sources at " ^ show_path path ^ "\n")
   429           else ()
   430         end;
   431 
   432     val doc_paths =
   433       documents |> Par_List.map (fn (name, tags) =>
   434         let
   435           val (doc_prefix, purge) =
   436             (case doc_output of
   437               SOME path => (path, false)
   438             | NONE => (html_prefix, true));
   439           val _ =
   440             File.eq (document_path, doc_prefix) andalso
   441               error ("Overlap of document input and output directory " ^ Path.print doc_prefix);
   442           val dir = Path.append doc_prefix (Path.basic name);
   443           val mode = if File.eq (document_path, dir) then Dump_tex_sty else Dump_all;
   444           val _ = prepare_sources dir mode;
   445         in isabelle_document {verbose = true, purge = purge} doc_format name tags dir end);
   446     val _ =
   447       if verbose orelse is_some doc_output then
   448         doc_paths
   449         |> List.app (fn doc => Output.physical_stderr ("Document at " ^ show_path doc ^ "\n"))
   450       else ();
   451   in
   452     browser_info := empty_browser_info;
   453     session_info := NONE
   454   end);
   455 
   456 
   457 (* theory elements *)
   458 
   459 fun init_theory name = session_default () (fn _ => init_theory_info name empty_theory_info);
   460 
   461 fun theory_source name mk_text =
   462   session_default () (fn _ => add_html_source name (HTML.theory_source (mk_text ())));
   463 
   464 fun theory_output name s =
   465   session_default () (fn _ => add_tex_source name (Latex.isabelle_file name s));
   466 
   467 
   468 fun parent_link remote_path curr_session thy =
   469   let
   470     val {name = _, session, is_local} = get_info thy;
   471     val name = Context.theory_name thy;
   472     val link =
   473       if null session then NONE
   474       else SOME
   475        (if is_some remote_path andalso not is_local then
   476          Url.append (the remote_path) (Url.File (Path.append (Path.make session) (html_path name)))
   477         else Url.File (Path.append (mk_rel_path curr_session session) (html_path name)));
   478   in (link, name) end;
   479 
   480 fun begin_theory update_time dir files thy =
   481     session_default thy (fn {name = sess_name, session, path, html_prefix, remote_path, ...} =>
   482   let
   483     val name = Context.theory_name thy;
   484     val parents = Theory.parents_of thy;
   485     val parent_specs = map (parent_link remote_path path) parents;
   486 
   487     val files_html = files |> map (fn (raw_path, loadit) =>
   488       let
   489         val path = File.check_file (File.full_path dir raw_path);
   490         val base = Path.base path;
   491         val base_html = html_ext base;
   492         val _ = add_file (Path.append html_prefix base_html,
   493           HTML.external_file (Url.File base) (File.read path));
   494       in (Url.File base_html, Url.File raw_path, loadit) end);
   495 
   496     fun prep_html_source (tex_source, html_source, html) =
   497       let
   498         val txt = HTML.begin_theory (Url.File index_path, session)
   499           name parent_specs files_html (Buffer.content html_source)
   500       in (tex_source, Buffer.empty, Buffer.add txt html) end;
   501 
   502     val entry =
   503      {name = name, ID = ID_of path name, dir = sess_name, unfold = true,
   504       path = Path.implode (html_path name),
   505       parents = map ID_of_thy parents};
   506   in
   507     change_theory_info name prep_html_source;
   508     add_graph_entry (update_time, entry);
   509     add_html_index (update_time, HTML.theory_entry (Url.File (html_path name), name));
   510     add_tex_index (update_time, Latex.theory_entry name);
   511     put_info {name = sess_name, session = path, is_local = is_some remote_path} thy
   512   end);
   513 
   514 
   515 
   516 (** draft document output **)
   517 
   518 fun drafts doc_format src_paths = Isabelle_System.with_tmp_dir "drafts" (fn dir =>
   519   let
   520     fun prep_draft path i =
   521       let
   522         val base = Path.base path;
   523         val name =
   524           (case Path.implode (#1 (Path.split_ext base)) of
   525             "" => "DUMMY"
   526           | s => s)  ^ serial_string ();
   527       in
   528         if File.exists path then
   529           (((name, base, File.read path), (i, Latex.theory_entry name)), i + 1)
   530         else error ("Bad file: " ^ Path.print path)
   531       end;
   532     val (srcs, tex_index) = split_list (fst (fold_map prep_draft src_paths 0));
   533 
   534     val doc_path = Path.append dir document_path;
   535     val _ = Isabelle_System.mkdirs doc_path;
   536     val root_path = Path.append doc_path (Path.basic "root.tex");
   537     val _ = File.copy (Path.explode "~~/lib/texinputs/draft.tex") root_path;
   538     val _ = Isabelle_System.isabelle_tool "latex" ("-o sty " ^ File.shell_path root_path);
   539     val _ = Isabelle_System.isabelle_tool "latex" ("-o syms " ^ File.shell_path root_path);
   540 
   541     fun known name =
   542       let val ss = split_lines (File.read (Path.append doc_path (Path.basic name)))
   543       in member (op =) ss end;
   544     val known_syms = known "syms.lst";
   545     val known_ctrls = known "ctrls.lst";
   546 
   547     val _ = srcs |> List.app (fn (name, base, txt) =>
   548       Symbol.explode txt
   549       |> Latex.symbol_source (known_syms, known_ctrls) (Path.implode base)
   550       |> File.write (Path.append doc_path (tex_path name)));
   551     val _ = write_tex_index tex_index doc_path;
   552 
   553     val result =
   554       isabelle_document {verbose = false, purge = true} doc_format documentN "" doc_path;
   555     val result' = Isabelle_System.create_tmp_path documentN doc_format;
   556     val _ = File.copy result result';
   557   in result' end);
   558 
   559 end;
   560 
   561 structure Basic_Present: BASIC_PRESENT = Present;
   562 open Basic_Present;