defer evaluation of Scan.message, for improved performance in the frequent situation where failure is handled later (e.g. via ||);
1 (* Title: Pure/Thy/thy_output.ML
2 Author: Markus Wenzel, TU Muenchen
4 Theory document output with antiquotations.
9 val display_default: bool Unsynchronized.ref
10 val quotes_default: bool Unsynchronized.ref
11 val indent_default: int Unsynchronized.ref
12 val source_default: bool Unsynchronized.ref
13 val break_default: bool Unsynchronized.ref
14 val display: bool Config.T
15 val quotes: bool Config.T
16 val indent: int Config.T
17 val source: bool Config.T
18 val break: bool Config.T
19 val add_wrapper: ((unit -> string) -> unit -> string) -> Proof.context -> Proof.context
20 val add_option: binding -> (string -> Proof.context -> Proof.context) -> theory -> theory
21 val intern_command: theory -> xstring -> string
22 val defined_command: theory -> string -> bool
23 val intern_option: theory -> xstring -> string
24 val defined_option: theory -> string -> bool
25 val print_antiquotations: Proof.context -> unit
26 val antiquotation: binding -> 'a context_parser ->
27 ({source: Args.src, state: Toplevel.state, context: Proof.context} -> 'a -> string) ->
29 val boolean: string -> bool
30 val integer: string -> int
31 datatype markup = Markup | MarkupEnv | Verbatim
32 val modes: string list Unsynchronized.ref
33 val eval_antiq: Scan.lexicon -> Toplevel.state -> Symbol_Pos.T list * Position.range -> string
34 val eval_antiquote: Scan.lexicon -> Toplevel.state -> Symbol_Pos.text * Position.T -> string
35 val present_thy: Scan.lexicon -> (string -> string list) -> (markup -> string -> bool) ->
36 (Toplevel.transition * Toplevel.state) list -> (Token.T, 'a) Source.source -> Buffer.T
37 val pretty_text: Proof.context -> string -> Pretty.T
38 val pretty_term: Proof.context -> term -> Pretty.T
39 val pretty_thm: Proof.context -> thm -> Pretty.T
40 val str_of_source: Args.src -> string
41 val maybe_pretty_source: (Proof.context -> 'a -> Pretty.T) -> Proof.context ->
42 Args.src -> 'a list -> Pretty.T list
43 val output: Proof.context -> Pretty.T list -> string
46 structure Thy_Output: THY_OUTPUT =
49 (** global options **)
51 val display_default = Unsynchronized.ref false;
52 val quotes_default = Unsynchronized.ref false;
53 val indent_default = Unsynchronized.ref 0;
54 val source_default = Unsynchronized.ref false;
55 val break_default = Unsynchronized.ref false;
57 val display = Attrib.setup_config_bool (Binding.name "thy_output_display") (fn _ => ! display_default);
58 val quotes = Attrib.setup_config_bool (Binding.name "thy_output_quotes") (fn _ => ! quotes_default);
59 val indent = Attrib.setup_config_int (Binding.name "thy_output_indent") (fn _ => ! indent_default);
60 val source = Attrib.setup_config_bool (Binding.name "thy_output_source") (fn _ => ! source_default);
61 val break = Attrib.setup_config_bool (Binding.name "thy_output_break") (fn _ => ! break_default);
64 structure Wrappers = Proof_Data
66 type T = ((unit -> string) -> unit -> string) list;
70 fun add_wrapper wrapper = Wrappers.map (cons wrapper);
72 val wrap = Wrappers.get #> fold (fn wrapper => fn f => wrapper f);
76 (** maintain global antiquotations **)
78 structure Antiquotations = Theory_Data
81 (Args.src -> Toplevel.state -> Proof.context -> string) Name_Space.table *
82 (string -> Proof.context -> Proof.context) Name_Space.table;
84 (Name_Space.empty_table Markup.doc_antiquotationN,
85 Name_Space.empty_table Markup.doc_antiquotation_optionN);
87 fun merge ((commands1, options1), (commands2, options2)) : T =
88 (Name_Space.merge_tables (commands1, commands2),
89 Name_Space.merge_tables (options1, options2));
92 fun add_command name cmd thy =
93 thy |> Antiquotations.map
96 (Proof_Context.init_global thy) true (Sign.naming_of thy) (name, cmd) #> snd));
98 fun add_option name opt thy =
99 thy |> Antiquotations.map
102 (Proof_Context.init_global thy) true (Sign.naming_of thy) (name, opt) #> snd));
104 val intern_command = Name_Space.intern o #1 o #1 o Antiquotations.get;
105 val defined_command = Symtab.defined o #2 o #1 o Antiquotations.get;
107 val intern_option = Name_Space.intern o #1 o #2 o Antiquotations.get;
108 val defined_option = Symtab.defined o #2 o #2 o Antiquotations.get;
110 fun command src state ctxt =
112 val thy = Proof_Context.theory_of ctxt;
113 val ((xname, _), pos) = Args.dest_src src;
114 val (name, f) = Name_Space.check ctxt (#1 (Antiquotations.get thy)) (xname, pos);
116 f src state ctxt handle ERROR msg =>
117 cat_error msg ("The error(s) above occurred in document antiquotation: " ^
118 quote name ^ Position.str_of pos)
121 fun option ((xname, pos), s) ctxt =
123 val thy = Proof_Context.theory_of ctxt;
124 val (_, opt) = Name_Space.check ctxt (#2 (Antiquotations.get thy)) (xname, pos);
127 fun print_antiquotations ctxt =
129 val thy = Proof_Context.theory_of ctxt;
130 val (commands, options) = Antiquotations.get thy;
131 val command_names = map #1 (Name_Space.extern_table ctxt commands);
132 val option_names = map #1 (Name_Space.extern_table ctxt options);
134 [Pretty.big_list "document antiquotations:" (map Pretty.str command_names),
135 Pretty.big_list "document antiquotation options:" (map Pretty.str option_names)]
136 |> Pretty.chunks |> Pretty.writeln
139 fun antiquotation name scan out =
141 (fn src => fn state => fn ctxt =>
142 let val (x, ctxt') = Args.context_syntax "document antiquotation" scan src ctxt
143 in out {source = src, state = state, context = ctxt'} x end);
147 (** syntax of antiquotations **)
151 fun boolean "" = true
152 | boolean "true" = true
153 | boolean "false" = false
154 | boolean s = error ("Bad boolean value: " ^ quote s);
159 (case Library.read_int ss of (i, []) => i
160 | _ => error ("Bad integer value: " ^ quote s));
161 in (case Symbol.explode s of "-" :: ss => ~ (int ss) | ss => int ss) end;
169 Parse.position Parse.xname -- Scan.optional (Parse.$$$ "=" |-- Parse.!!! Parse.xname) "";
172 Scan.optional (Parse.$$$ "[" |-- Parse.!!! (Parse.enum "," property --| Parse.$$$ "]")) [];
178 (Parse.position Parse.liberal_name -- properties -- Args.parse --| Scan.ahead Parse.eof)
179 >> (fn (((x, pos), y), z) => (y, Args.src ((x, z), pos)));
186 val modes = Unsynchronized.ref ([]: string list);
188 fun eval_antiq lex state (ss, (pos, _)) =
190 val (opts, src) = Token.read_antiq lex antiq (ss, pos);
191 fun cmd ctxt = wrap ctxt (fn () => command src state ctxt) ();
192 val preview_ctxt = fold option opts (Toplevel.presentation_context_of state);
193 val print_ctxt = Context_Position.set_visible false preview_ctxt;
194 val _ = cmd preview_ctxt;
195 in Print_Mode.with_modes (! modes @ Latex.modes) (fn () => cmd print_ctxt) () end;
197 fun eval_antiquote lex state (txt, pos) =
199 fun expand (Antiquote.Text ss) = Symbol_Pos.content ss
200 | expand (Antiquote.Antiq antiq) = eval_antiq lex state antiq
201 | expand (Antiquote.Open _) = ""
202 | expand (Antiquote.Close _) = "";
203 val ants = Antiquote.read (Symbol_Pos.explode (txt, pos), pos);
205 if Toplevel.is_toplevel state andalso not (forall Antiquote.is_text ants) then
206 error ("Unknown context -- cannot expand document antiquotations" ^ Position.str_of pos)
207 else implode (map expand ants)
212 (** present theory source **)
214 (*NB: arranging white space around command spans is a black art.*)
216 (* presentation tokens *)
220 | BasicToken of Token.T
221 | MarkupToken of string * (string * Position.T)
222 | MarkupEnvToken of string * (string * Position.T)
223 | VerbatimToken of string * Position.T;
225 fun output_token lex state =
226 let val eval = eval_antiquote lex state in
228 | BasicToken tok => Latex.output_basic tok
229 | MarkupToken (cmd, txt) => Latex.output_markup cmd (eval txt)
230 | MarkupEnvToken (cmd, txt) => Latex.output_markup_env cmd (eval txt)
231 | VerbatimToken txt => Latex.output_verbatim (eval txt)
234 fun basic_token pred (BasicToken tok) = pred tok
235 | basic_token _ _ = false;
237 val improper_token = basic_token (not o Token.is_proper);
238 val comment_token = basic_token Token.is_comment;
239 val blank_token = basic_token Token.is_blank;
240 val newline_token = basic_token Token.is_newline;
245 type command = string * Position.T * string list; (*name, position, tags*)
246 type source = (token * (string * int)) list; (*token, markup flag, meta-comment depth*)
248 datatype span = Span of command * (source * source * source * source) * bool;
250 fun make_span cmd src =
252 fun take_newline (tok :: toks) =
253 if newline_token (fst tok) then ([tok], toks, true)
254 else ([], tok :: toks, false)
255 | take_newline [] = ([], [], false);
256 val (((src_prefix, src_main), src_suffix1), (src_suffix2, src_appendix, newline)) =
258 |> take_prefix (improper_token o fst)
259 ||>> take_suffix (improper_token o fst)
260 ||>> take_prefix (comment_token o fst)
262 in Span (cmd, (src_prefix, src_main, src_suffix1 @ src_suffix2, src_appendix), newline) end;
269 fun err_bad_nesting pos =
270 error ("Bad nesting of commands in presentation" ^ pos);
272 fun edge which f (x: string option, y) =
274 else (case which (x, y) of NONE => I | SOME txt => Buffer.add (f txt));
276 val begin_tag = edge #2 Latex.begin_tag;
277 val end_tag = edge #1 Latex.end_tag;
278 fun open_delim delim e = edge #2 Latex.begin_delim e #> delim #> edge #2 Latex.end_delim e;
279 fun close_delim delim e = edge #1 Latex.begin_delim e #> delim #> edge #1 Latex.end_delim e;
283 fun present_span lex default_tags span state state'
284 (tag_stack, active_tag, newline, buffer, present_cont) =
286 val present = fold (fn (tok, (flag, 0)) =>
287 Buffer.add (output_token lex state' tok)
291 val Span ((cmd_name, cmd_pos, cmd_tags), srcs, span_newline) = span;
293 val (tag, tags) = tag_stack;
294 val tag' = try hd (fold Keyword.update_tags cmd_tags (the_list tag));
297 if is_some tag' then tag'
298 else if cmd_name = "end" andalso not (Toplevel.is_toplevel state') then NONE
299 else try hd (default_tags cmd_name);
300 val edge = (active_tag, active_tag');
303 if is_none active_tag' then span_newline else newline;
305 val nesting = Toplevel.level state' - Toplevel.level state;
307 if nesting = 0 andalso not (Toplevel.is_proof state) then tag_stack
308 else if nesting >= 0 then (tag', replicate nesting tag @ tags)
310 (case drop (~ nesting - 1) tags of
311 tgs :: tgss => (tgs, tgss)
312 | [] => err_bad_nesting (Position.str_of cmd_pos));
317 |> close_delim (fst present_cont) edge
319 |> open_delim (present (#1 srcs)) edge
321 |> present (#2 srcs);
323 if newline then (present (#3 srcs), present (#4 srcs))
324 else (I, present (#3 srcs) #> present (#4 srcs));
325 in (tag_stack', active_tag', newline', buffer', present_cont') end;
327 fun present_trailer ((_, tags), active_tag, _, buffer, present_cont) =
328 if not (null tags) then err_bad_nesting " at end of theory"
331 |> end_tag (active_tag, NONE)
332 |> close_delim (fst present_cont) (active_tag, NONE)
340 datatype markup = Markup | MarkupEnv | Verbatim;
345 Scan.one Token.is_blank -- Scan.many Token.is_comment -- Scan.one Token.is_proper;
347 val is_improper = not o (Token.is_proper orf Token.is_begin_ignore orf Token.is_end_ignore);
348 val improper = Scan.many is_improper;
349 val improper_end = Scan.repeat (Scan.unless space_proper (Scan.one is_improper));
350 val blank_end = Scan.repeat (Scan.unless space_proper (Scan.one Token.is_blank));
352 val opt_newline = Scan.option (Scan.one Token.is_newline);
355 Scan.depend (fn d => opt_newline |-- Scan.one Token.is_begin_ignore
357 Scan.depend (fn d => Scan.one Token.is_end_ignore --|
358 (if d = 0 then Scan.fail_with (K (fn () => "Bad nesting of meta-comments")) else opt_newline)
361 val tag = (improper -- Parse.$$$ "%" -- improper) |-- Parse.!!! (Parse.tag_name --| blank_end);
364 Scan.option ((Parse.$$$ "(" -- improper -- Parse.$$$ "in") |--
365 Parse.!!! (improper |-- Parse.xname --| (improper -- Parse.$$$ ")")));
369 fun present_thy lex default_tags is_markup command_results src =
373 val ignored = Scan.state --| ignore
374 >> (fn d => (NONE, (NoToken, ("", d))));
376 fun markup mark mk flag = Scan.peek (fn d =>
379 (Scan.one (Token.is_kind Token.Command andf is_markup mark o Token.content_of)) --
381 Parse.!!!! ((improper -- locale -- improper) |-- Parse.doc_source --| improper_end)
382 >> (fn (((tok, pos), tags), txt) =>
383 let val name = Token.content_of tok
384 in (SOME (name, pos, tags), (mk (name, txt), (flag, d))) end));
386 val command = Scan.peek (fn d =>
387 Parse.position (Scan.one (Token.is_kind Token.Command)) --
389 >> (fn ((tok, pos), tags) =>
390 let val name = Token.content_of tok
391 in (SOME (name, pos, tags), (BasicToken tok, (Latex.markup_false, d))) end));
393 val cmt = Scan.peek (fn d =>
394 Parse.$$$ "--" |-- Parse.!!!! (improper |-- Parse.doc_source)
395 >> (fn txt => (NONE, (MarkupToken ("cmt", txt), ("", d)))));
397 val other = Scan.peek (fn d =>
398 Parse.not_eof >> (fn tok => (NONE, (BasicToken tok, ("", d)))));
402 markup Markup MarkupToken Latex.markup_true ||
403 markup MarkupEnv MarkupEnvToken Latex.markup_true ||
404 markup Verbatim (VerbatimToken o #2) "" ||
405 command || cmt || other;
410 val is_eof = fn (_, (BasicToken x, _)) => Token.is_eof x | _ => false;
411 val stopper = Scan.stopper (K (NONE, (BasicToken Token.eof, ("", 0)))) is_eof;
413 val cmd = Scan.one (is_some o fst);
414 val non_cmd = Scan.one (is_none o fst andf not o is_eof) >> #2;
416 val comments = Scan.many (comment_token o fst o snd);
417 val blank = Scan.one (blank_token o fst o snd);
418 val newline = Scan.one (newline_token o fst o snd);
420 Scan.option (newline -- comments) --
421 Scan.option (newline -- comments) --
422 Scan.option (blank -- comments) -- cmd;
425 Scan.repeat non_cmd -- cmd --
426 Scan.repeat (Scan.unless before_cmd non_cmd) --
427 Scan.option (newline >> (single o snd))
428 >> (fn (((toks1, (cmd, tok2)), toks3), tok4) =>
429 make_span (the cmd) (toks1 @ (tok2 :: (toks3 @ the_default [] tok4))));
433 |> Source.filter (not o Token.is_semicolon)
434 |> Source.source' 0 Token.stopper (Scan.error (Scan.bulk token)) NONE
435 |> Source.source stopper (Scan.error (Scan.bulk span)) NONE
439 (* present commands *)
441 fun present_command tr span st st' =
442 Toplevel.setmp_thread_position tr (present_span lex default_tags span st st');
445 | present st (((tr, st'), span) :: rest) = present_command tr span st st' #> present st' rest;
447 if length command_results = length spans then
448 ((NONE, []), NONE, true, Buffer.empty, (I, I))
449 |> present Toplevel.toplevel (command_results ~~ spans)
451 else error "Messed-up outer syntax for presentation"
458 (** setup default output **)
463 Context.>> (Context.map_theory
464 (add_option (Binding.name "show_types") (Config.put show_types o boolean) #>
465 add_option (Binding.name "show_sorts") (Config.put show_sorts o boolean) #>
466 add_option (Binding.name "show_structs") (Config.put show_structs o boolean) #>
467 add_option (Binding.name "show_question_marks") (Config.put show_question_marks o boolean) #>
468 add_option (Binding.name "show_abbrevs") (Config.put show_abbrevs o boolean) #>
469 add_option (Binding.name "names_long") (Config.put Name_Space.names_long o boolean) #>
470 add_option (Binding.name "names_short") (Config.put Name_Space.names_short o boolean) #>
471 add_option (Binding.name "names_unique") (Config.put Name_Space.names_unique o boolean) #>
472 add_option (Binding.name "eta_contract") (Config.put Syntax_Trans.eta_contract o boolean) #>
473 add_option (Binding.name "display") (Config.put display o boolean) #>
474 add_option (Binding.name "break") (Config.put break o boolean) #>
475 add_option (Binding.name "quotes") (Config.put quotes o boolean) #>
476 add_option (Binding.name "mode") (add_wrapper o Print_Mode.with_modes o single) #>
477 add_option (Binding.name "margin") (add_wrapper o setmp_CRITICAL Pretty.margin_default o integer) #>
478 add_option (Binding.name "indent") (Config.put indent o integer) #>
479 add_option (Binding.name "source") (Config.put source o boolean) #>
480 add_option (Binding.name "goals_limit") (Config.put Goal_Display.goals_limit o integer)));
483 (* basic pretty printing *)
485 fun tweak_line ctxt s =
486 if Config.get ctxt display then s else Symbol.strip_blanks s;
488 fun pretty_text ctxt =
489 Pretty.chunks o map Pretty.str o map (tweak_line ctxt) o Library.split_lines;
491 fun pretty_term ctxt t = Syntax.pretty_term (Variable.auto_fixes t ctxt) t;
493 fun pretty_thm ctxt = pretty_term ctxt o Thm.full_prop_of;
495 fun pretty_term_style ctxt (style, t) =
496 pretty_term ctxt (style t);
498 fun pretty_thm_style ctxt (style, th) =
499 pretty_term ctxt (style (Thm.full_prop_of th));
501 fun pretty_term_typ ctxt (style, t) =
503 in pretty_term ctxt (Type.constraint (Term.fastype_of t') t') end;
505 fun pretty_term_typeof ctxt (style, t) =
506 Syntax.pretty_typ ctxt (Term.fastype_of (style t));
508 fun pretty_const ctxt c =
510 val t = Const (c, Consts.type_scheme (Proof_Context.consts_of ctxt) c)
511 handle TYPE (msg, _, _) => error msg;
512 val ([t'], _) = Variable.import_terms true [t] ctxt;
513 in pretty_term ctxt t' end;
515 fun pretty_abbrev ctxt s =
517 val t = Syntax.read_term (Proof_Context.set_mode Proof_Context.mode_abbrev ctxt) s;
518 fun err () = error ("Abbreviated constant expected: " ^ Syntax.string_of_term ctxt t);
519 val (head, args) = Term.strip_comb t;
520 val (c, T) = Term.dest_Const head handle TERM _ => err ();
521 val (U, u) = Consts.the_abbreviation (Proof_Context.consts_of ctxt) c
522 handle TYPE _ => err ();
523 val t' = Term.betapplys (Envir.expand_atom T (U, u), args);
524 val eq = Logic.mk_equals (t, t');
525 val ctxt' = Variable.auto_fixes eq ctxt;
526 in Proof_Context.pretty_term_abbrev ctxt' eq end;
528 fun pretty_class ctxt =
529 Pretty.str o Proof_Context.extern_class ctxt o Proof_Context.read_class ctxt;
531 fun pretty_type ctxt s =
532 let val Type (name, _) = Proof_Context.read_type_name_proper ctxt false s
533 in Pretty.str (Proof_Context.extern_type ctxt name) end;
535 fun pretty_prf full ctxt = Proof_Syntax.pretty_proof_of ctxt full;
537 fun pretty_theory ctxt name =
538 (Theory.requires (Proof_Context.theory_of ctxt) name "presentation"; Pretty.str name);
543 val str_of_source = space_implode " " o map Token.unparse o #2 o #1 o Args.dest_src;
545 fun maybe_pretty_source pretty ctxt src xs =
546 map (pretty ctxt) xs (*always pretty in order to exhibit errors!*)
547 |> (if Config.get ctxt source then K [pretty_text ctxt (str_of_source src)] else I);
549 fun output ctxt prts =
551 |> (if Config.get ctxt quotes then map Pretty.quote else I)
552 |> (if Config.get ctxt display then
553 map (Output.output o Pretty.string_of o Pretty.indent (Config.get ctxt indent))
554 #> space_implode "\\isasep\\isanewline%\n"
555 #> enclose "\\begin{isabelle}%\n" "%\n\\end{isabelle}"
557 map (Output.output o (if Config.get ctxt break then Pretty.string_of else Pretty.str_of))
558 #> space_implode "\\isasep\\isanewline%\n"
559 #> enclose "\\isa{" "}");
563 (** concrete antiquotations **)
569 fun basic_entities name scan pretty = antiquotation name scan
570 (fn {source, context, ...} => output context o maybe_pretty_source pretty context source);
572 fun basic_entities_style name scan pretty = antiquotation name scan
573 (fn {source, context, ...} => fn (style, xs) =>
575 (maybe_pretty_source (fn ctxt => fn x => pretty ctxt (style, x)) context source xs));
577 fun basic_entity name scan = basic_entities name (scan >> single);
582 Context.>> (Context.map_theory
583 (basic_entities_style (Binding.name "thm") (Term_Style.parse -- Attrib.thms) pretty_thm_style #>
584 basic_entity (Binding.name "prop") (Term_Style.parse -- Args.prop) pretty_term_style #>
585 basic_entity (Binding.name "term") (Term_Style.parse -- Args.term) pretty_term_style #>
586 basic_entity (Binding.name "term_type") (Term_Style.parse -- Args.term) pretty_term_typ #>
587 basic_entity (Binding.name "typeof") (Term_Style.parse -- Args.term) pretty_term_typeof #>
588 basic_entity (Binding.name "const") (Args.const_proper false) pretty_const #>
589 basic_entity (Binding.name "abbrev") (Scan.lift Args.name_source) pretty_abbrev #>
590 basic_entity (Binding.name "typ") Args.typ_abbrev Syntax.pretty_typ #>
591 basic_entity (Binding.name "class") (Scan.lift Args.name) pretty_class #>
592 basic_entity (Binding.name "type") (Scan.lift Args.name) pretty_type #>
593 basic_entity (Binding.name "text") (Scan.lift Args.name) pretty_text #>
594 basic_entities (Binding.name "prf") Attrib.thms (pretty_prf false) #>
595 basic_entities (Binding.name "full_prf") Attrib.thms (pretty_prf true) #>
596 basic_entity (Binding.name "theory") (Scan.lift Args.name) pretty_theory #>
597 basic_entities_style (Binding.name "thm_style")
598 (Term_Style.parse_bare -- Attrib.thms) pretty_thm_style #>
599 basic_entity (Binding.name "term_style")
600 (Term_Style.parse_bare -- Args.term) pretty_term_style));
609 fun proof_state state =
610 (case try Toplevel.proof_of state of
612 | _ => error "No proof state");
614 fun goal_state name main_goal = antiquotation name (Scan.succeed ())
615 (fn {state, context = ctxt, ...} => fn () => output ctxt
617 (Proof.pretty_goals main_goal (Proof.map_context (K ctxt) (proof_state state)))]);
622 Context.>> (Context.map_theory
623 (goal_state (Binding.name "goals") true #>
624 goal_state (Binding.name "subgoals") false));
631 val _ = Keyword.keyword "by";
634 Context.>> (Context.map_theory
635 (antiquotation (Binding.name "lemma")
636 (Args.prop -- Scan.lift (Args.$$$ "by" |-- Method.parse -- Scan.option Method.parse))
637 (fn {source, context, ...} => fn (prop, methods) =>
640 (case Args.dest_src source of ((a, arg :: _), pos) => Args.src ((a, [arg]), pos));
641 (* FIXME check proof!? *)
643 |> Proof.theorem NONE (K I) [[(prop, [])]]
644 |> Proof.global_terminal_proof methods;
645 in output context (maybe_pretty_source pretty_term context prop_src [prop]) end)));
652 #> map (space_implode "\\verb,|," o map (enclose "\\verb|" "|") o space_explode "|")
653 #> space_implode "\\isasep\\isanewline%\n";
657 fun ml_text name ml = antiquotation name (Scan.lift Args.name_source_position)
658 (fn {context, ...} => fn (txt, pos) =>
659 (ML_Context.eval_in (SOME context) false pos (ml pos txt);
660 Symbol_Pos.content (Symbol_Pos.explode (txt, pos))
661 |> (if Config.get context quotes then quote else I)
662 |> (if Config.get context display then enclose "\\begin{verbatim}\n" "\n\\end{verbatim}"
665 fun ml_enclose bg en pos txt =
666 ML_Lex.read Position.none bg @ ML_Lex.read pos txt @ ML_Lex.read Position.none en;
671 Context.>> (Context.map_theory
672 (ml_text (Binding.name "ML") (ml_enclose "fn _ => (" ");") #>
673 ml_text (Binding.name "ML_type") (ml_enclose "val _ = NONE : (" ") option;") #>
674 ml_text (Binding.name "ML_struct")
675 (ml_enclose "functor XXX() = struct structure XX = " " end;") #>
677 ml_text (Binding.name "ML_functor") (* FIXME formal treatment of functor name (!?) *)
679 ML_Lex.read Position.none ("ML_Env.check_functor " ^
680 ML_Syntax.print_string (Symbol_Pos.content (Symbol_Pos.explode (txt, pos))))) #>
682 ml_text (Binding.name "ML_text") (K (K []))));
690 Context.>> (Context.map_theory
691 (antiquotation (Binding.name "file") (Scan.lift Args.name)
693 if File.exists (Path.explode path) then verb_text path
694 else error ("Bad file: " ^ quote path))));