(* Title: Pure/Thy/thy_output.ML
Author: Markus Wenzel, TU Muenchen
Theory document output with antiquotations.
*)
signature THY_OUTPUT =
sig
val display_default: bool Unsynchronized.ref
val quotes_default: bool Unsynchronized.ref
val indent_default: int Unsynchronized.ref
val source_default: bool Unsynchronized.ref
val break_default: bool Unsynchronized.ref
val display: bool Config.T
val quotes: bool Config.T
val indent: int Config.T
val source: bool Config.T
val break: bool Config.T
val add_wrapper: ((unit -> string) -> unit -> string) -> Proof.context -> Proof.context
val add_option: binding -> (string -> Proof.context -> Proof.context) -> theory -> theory
val intern_command: theory -> xstring -> string
val defined_command: theory -> string -> bool
val intern_option: theory -> xstring -> string
val defined_option: theory -> string -> bool
val print_antiquotations: Proof.context -> unit
val antiquotation: binding -> 'a context_parser ->
({source: Args.src, state: Toplevel.state, context: Proof.context} -> 'a -> string) ->
theory -> theory
val boolean: string -> bool
val integer: string -> int
datatype markup = Markup | MarkupEnv | Verbatim
val modes: string list Unsynchronized.ref
val eval_antiq: Scan.lexicon -> Toplevel.state -> Symbol_Pos.T list * Position.range -> string
val eval_antiquote: Scan.lexicon -> Toplevel.state -> Symbol_Pos.text * Position.T -> string
val check_text: Symbol_Pos.text * Position.T -> Toplevel.state -> unit
val present_thy: Scan.lexicon -> (string -> string list) -> (markup -> string -> bool) ->
(Toplevel.transition * Toplevel.state) list -> Token.T list -> Buffer.T
val pretty_text: Proof.context -> string -> Pretty.T
val pretty_term: Proof.context -> term -> Pretty.T
val pretty_thm: Proof.context -> thm -> Pretty.T
val str_of_source: Args.src -> string
val maybe_pretty_source: (Proof.context -> 'a -> Pretty.T) -> Proof.context ->
Args.src -> 'a list -> Pretty.T list
val output: Proof.context -> Pretty.T list -> string
val verb_text: string -> string
end;
structure Thy_Output: THY_OUTPUT =
struct
(** global options **)
val display_default = Unsynchronized.ref false;
val quotes_default = Unsynchronized.ref false;
val indent_default = Unsynchronized.ref 0;
val source_default = Unsynchronized.ref false;
val break_default = Unsynchronized.ref false;
val display = Attrib.setup_config_bool (Binding.name "thy_output_display") (fn _ => ! display_default);
val quotes = Attrib.setup_config_bool (Binding.name "thy_output_quotes") (fn _ => ! quotes_default);
val indent = Attrib.setup_config_int (Binding.name "thy_output_indent") (fn _ => ! indent_default);
val source = Attrib.setup_config_bool (Binding.name "thy_output_source") (fn _ => ! source_default);
val break = Attrib.setup_config_bool (Binding.name "thy_output_break") (fn _ => ! break_default);
structure Wrappers = Proof_Data
(
type T = ((unit -> string) -> unit -> string) list;
fun init _ = [];
);
fun add_wrapper wrapper = Wrappers.map (cons wrapper);
val wrap = Wrappers.get #> fold (fn wrapper => fn f => wrapper f);
(** maintain global antiquotations **)
structure Antiquotations = Theory_Data
(
type T =
(Args.src -> Toplevel.state -> Proof.context -> string) Name_Space.table *
(string -> Proof.context -> Proof.context) Name_Space.table;
val empty : T =
(Name_Space.empty_table Markup.document_antiquotationN,
Name_Space.empty_table Markup.document_antiquotation_optionN);
val extend = I;
fun merge ((commands1, options1), (commands2, options2)) : T =
(Name_Space.merge_tables (commands1, commands2),
Name_Space.merge_tables (options1, options2));
);
fun add_command name cmd thy = thy
|> Antiquotations.map (apfst (Name_Space.define (Context.Theory thy) true (name, cmd) #> snd));
fun add_option name opt thy = thy
|> Antiquotations.map (apsnd (Name_Space.define (Context.Theory thy) true (name, opt) #> snd));
val intern_command = Name_Space.intern o #1 o #1 o Antiquotations.get;
val defined_command = Symtab.defined o #2 o #1 o Antiquotations.get;
val intern_option = Name_Space.intern o #1 o #2 o Antiquotations.get;
val defined_option = Symtab.defined o #2 o #2 o Antiquotations.get;
fun command src state ctxt =
let
val thy = Proof_Context.theory_of ctxt;
val ((xname, _), pos) = Args.dest_src src;
val (name, f) = Name_Space.check (Context.Proof ctxt) (#1 (Antiquotations.get thy)) (xname, pos);
in
f src state ctxt handle ERROR msg =>
cat_error msg ("The error(s) above occurred in document antiquotation: " ^
quote name ^ Position.here pos)
end;
fun option ((xname, pos), s) ctxt =
let
val thy = Proof_Context.theory_of ctxt;
val (_, opt) = Name_Space.check (Context.Proof ctxt) (#2 (Antiquotations.get thy)) (xname, pos);
in opt s ctxt end;
fun print_antiquotations ctxt =
let
val thy = Proof_Context.theory_of ctxt;
val (commands, options) = Antiquotations.get thy;
val command_names = map #1 (Name_Space.extern_table ctxt commands);
val option_names = map #1 (Name_Space.extern_table ctxt options);
in
[Pretty.big_list "document antiquotations:" (map Pretty.mark_str command_names),
Pretty.big_list "document antiquotation options:" (map Pretty.mark_str option_names)]
|> Pretty.chunks |> Pretty.writeln
end;
fun antiquotation name scan out =
add_command name
(fn src => fn state => fn ctxt =>
let val (x, ctxt') = Args.context_syntax "document antiquotation" scan src ctxt
in out {source = src, state = state, context = ctxt'} x end);
(** syntax of antiquotations **)
(* option values *)
fun boolean "" = true
| boolean "true" = true
| boolean "false" = false
| boolean s = error ("Bad boolean value: " ^ quote s);
fun integer s =
let
fun int ss =
(case Library.read_int ss of (i, []) => i
| _ => error ("Bad integer value: " ^ quote s));
in (case Symbol.explode s of "-" :: ss => ~ (int ss) | ss => int ss) end;
(* outer syntax *)
local
val property =
Parse.position Parse.xname -- Scan.optional (Parse.$$$ "=" |-- Parse.!!! Parse.xname) "";
val properties =
Scan.optional (Parse.$$$ "[" |-- Parse.!!! (Parse.enum "," property --| Parse.$$$ "]")) [];
in
val antiq =
Parse.!!!
(Parse.position Parse.liberal_name -- properties -- Args.parse --| Scan.ahead Parse.eof)
>> (fn (((x, pos), y), z) => (y, Args.src ((x, z), pos)));
end;
(* eval_antiquote *)
val modes = Unsynchronized.ref ([]: string list);
fun eval_antiq lex state (ss, (pos, _)) =
let
val (opts, src) = Token.read_antiq lex antiq (ss, pos);
fun cmd ctxt = wrap ctxt (fn () => command src state ctxt) ();
val preview_ctxt = fold option opts (Toplevel.presentation_context_of state);
val print_ctxt = Context_Position.set_visible false preview_ctxt;
val _ = cmd preview_ctxt;
in Print_Mode.with_modes (! modes @ Latex.modes) (fn () => cmd print_ctxt) () end;
fun eval_antiquote lex state (txt, pos) =
let
fun expand (Antiquote.Text ss) = Symbol_Pos.content ss
| expand (Antiquote.Antiq antiq) = eval_antiq lex state antiq
| expand (Antiquote.Open _) = ""
| expand (Antiquote.Close _) = "";
val ants = Antiquote.read (Symbol_Pos.explode (txt, pos), pos);
in
if Toplevel.is_toplevel state andalso not (forall Antiquote.is_text ants) then
error ("Unknown context -- cannot expand document antiquotations" ^ Position.here pos)
else implode (map expand ants)
end;
fun check_text (txt, pos) state =
(Position.report pos Markup.doc_source;
if Toplevel.is_skipped_proof state then ()
else ignore (eval_antiquote (#1 (Keyword.get_lexicons ())) state (txt, pos)));
(** present theory source **)
(*NB: arranging white space around command spans is a black art.*)
(* presentation tokens *)
datatype token =
NoToken
| BasicToken of Token.T
| MarkupToken of string * (string * Position.T)
| MarkupEnvToken of string * (string * Position.T)
| VerbatimToken of string * Position.T;
fun output_token lex state =
let val eval = eval_antiquote lex state in
fn NoToken => ""
| BasicToken tok => Latex.output_basic tok
| MarkupToken (cmd, txt) => Latex.output_markup cmd (eval txt)
| MarkupEnvToken (cmd, txt) => Latex.output_markup_env cmd (eval txt)
| VerbatimToken txt => Latex.output_verbatim (eval txt)
end;
fun basic_token pred (BasicToken tok) = pred tok
| basic_token _ _ = false;
val improper_token = basic_token Token.is_improper;
val comment_token = basic_token Token.is_comment;
val blank_token = basic_token Token.is_blank;
val newline_token = basic_token Token.is_newline;
(* command spans *)
type command = string * Position.T * string list; (*name, position, tags*)
type source = (token * (string * int)) list; (*token, markup flag, meta-comment depth*)
datatype span = Span of command * (source * source * source * source) * bool;
fun make_span cmd src =
let
fun take_newline (tok :: toks) =
if newline_token (fst tok) then ([tok], toks, true)
else ([], tok :: toks, false)
| take_newline [] = ([], [], false);
val (((src_prefix, src_main), src_suffix1), (src_suffix2, src_appendix, newline)) =
src
|> take_prefix (improper_token o fst)
||>> take_suffix (improper_token o fst)
||>> take_prefix (comment_token o fst)
||> take_newline;
in Span (cmd, (src_prefix, src_main, src_suffix1 @ src_suffix2, src_appendix), newline) end;
(* present spans *)
local
fun err_bad_nesting pos =
error ("Bad nesting of commands in presentation" ^ pos);
fun edge which f (x: string option, y) =
if x = y then I
else (case which (x, y) of NONE => I | SOME txt => Buffer.add (f txt));
val begin_tag = edge #2 Latex.begin_tag;
val end_tag = edge #1 Latex.end_tag;
fun open_delim delim e = edge #2 Latex.begin_delim e #> delim #> edge #2 Latex.end_delim e;
fun close_delim delim e = edge #1 Latex.begin_delim e #> delim #> edge #1 Latex.end_delim e;
in
fun present_span lex default_tags span state state'
(tag_stack, active_tag, newline, buffer, present_cont) =
let
val present = fold (fn (tok, (flag, 0)) =>
Buffer.add (output_token lex state' tok)
#> Buffer.add flag
| _ => I);
val Span ((cmd_name, cmd_pos, cmd_tags), srcs, span_newline) = span;
val (tag, tags) = tag_stack;
val tag' = try hd (fold (update (op =)) cmd_tags (the_list tag));
val active_tag' =
if is_some tag' then tag'
else if cmd_name = "end" andalso not (Toplevel.is_toplevel state') then NONE
else try hd (default_tags cmd_name);
val edge = (active_tag, active_tag');
val newline' =
if is_none active_tag' then span_newline else newline;
val nesting = Toplevel.level state' - Toplevel.level state;
val tag_stack' =
if nesting = 0 andalso not (Toplevel.is_proof state) then tag_stack
else if nesting >= 0 then (tag', replicate nesting tag @ tags)
else
(case drop (~ nesting - 1) tags of
tgs :: tgss => (tgs, tgss)
| [] => err_bad_nesting (Position.here cmd_pos));
val buffer' =
buffer
|> end_tag edge
|> close_delim (fst present_cont) edge
|> snd present_cont
|> open_delim (present (#1 srcs)) edge
|> begin_tag edge
|> present (#2 srcs);
val present_cont' =
if newline then (present (#3 srcs), present (#4 srcs))
else (I, present (#3 srcs) #> present (#4 srcs));
in (tag_stack', active_tag', newline', buffer', present_cont') end;
fun present_trailer ((_, tags), active_tag, _, buffer, present_cont) =
if not (null tags) then err_bad_nesting " at end of theory"
else
buffer
|> end_tag (active_tag, NONE)
|> close_delim (fst present_cont) (active_tag, NONE)
|> snd present_cont;
end;
(* present_thy *)
datatype markup = Markup | MarkupEnv | Verbatim;
local
val space_proper =
Scan.one Token.is_blank -- Scan.many Token.is_comment -- Scan.one Token.is_proper;
val is_improper = not o (Token.is_proper orf Token.is_begin_ignore orf Token.is_end_ignore);
val improper = Scan.many is_improper;
val improper_end = Scan.repeat (Scan.unless space_proper (Scan.one is_improper));
val blank_end = Scan.repeat (Scan.unless space_proper (Scan.one Token.is_blank));
val opt_newline = Scan.option (Scan.one Token.is_newline);
val ignore =
Scan.depend (fn d => opt_newline |-- Scan.one Token.is_begin_ignore
>> pair (d + 1)) ||
Scan.depend (fn d => Scan.one Token.is_end_ignore --|
(if d = 0 then Scan.fail_with (K (fn () => "Bad nesting of meta-comments")) else opt_newline)
>> pair (d - 1));
val tag = (improper -- Parse.$$$ "%" -- improper) |-- Parse.!!! (Parse.tag_name --| blank_end);
val locale =
Scan.option ((Parse.$$$ "(" -- improper -- Parse.$$$ "in") |--
Parse.!!! (improper |-- Parse.xname --| (improper -- Parse.$$$ ")")));
in
fun present_thy lex default_tags is_markup command_results toks =
let
(* tokens *)
val ignored = Scan.state --| ignore
>> (fn d => (NONE, (NoToken, ("", d))));
fun markup mark mk flag = Scan.peek (fn d =>
improper |--
Parse.position (Scan.one (Token.is_command andf is_markup mark o Token.content_of)) --
Scan.repeat tag --
Parse.!!!! ((improper -- locale -- improper) |-- Parse.doc_source --| improper_end)
>> (fn (((tok, pos), tags), txt) =>
let val name = Token.content_of tok
in (SOME (name, pos, tags), (mk (name, txt), (flag, d))) end));
val command = Scan.peek (fn d =>
Parse.position (Scan.one (Token.is_command)) --
Scan.repeat tag
>> (fn ((tok, pos), tags) =>
let val name = Token.content_of tok
in (SOME (name, pos, tags), (BasicToken tok, (Latex.markup_false, d))) end));
val cmt = Scan.peek (fn d =>
Parse.$$$ "--" |-- Parse.!!!! (improper |-- Parse.doc_source)
>> (fn txt => (NONE, (MarkupToken ("cmt", txt), ("", d)))));
val other = Scan.peek (fn d =>
Parse.not_eof >> (fn tok => (NONE, (BasicToken tok, ("", d)))));
val token =
ignored ||
markup Markup MarkupToken Latex.markup_true ||
markup MarkupEnv MarkupEnvToken Latex.markup_true ||
markup Verbatim (VerbatimToken o #2) "" ||
command || cmt || other;
(* spans *)
val is_eof = fn (_, (BasicToken x, _)) => Token.is_eof x | _ => false;
val stopper = Scan.stopper (K (NONE, (BasicToken Token.eof, ("", 0)))) is_eof;
val cmd = Scan.one (is_some o fst);
val non_cmd = Scan.one (is_none o fst andf not o is_eof) >> #2;
val comments = Scan.many (comment_token o fst o snd);
val blank = Scan.one (blank_token o fst o snd);
val newline = Scan.one (newline_token o fst o snd);
val before_cmd =
Scan.option (newline -- comments) --
Scan.option (newline -- comments) --
Scan.option (blank -- comments) -- cmd;
val span =
Scan.repeat non_cmd -- cmd --
Scan.repeat (Scan.unless before_cmd non_cmd) --
Scan.option (newline >> (single o snd))
>> (fn (((toks1, (cmd, tok2)), toks3), tok4) =>
make_span (the cmd) (toks1 @ (tok2 :: (toks3 @ the_default [] tok4))));
val spans =
Source.of_list (filter_out Token.is_semicolon toks)
|> Source.source' 0 Token.stopper (Scan.error (Scan.bulk token)) NONE
|> Source.source stopper (Scan.error (Scan.bulk span)) NONE
|> Source.exhaust;
(* present commands *)
fun present_command tr span st st' =
Toplevel.setmp_thread_position tr (present_span lex default_tags span st st');
fun present _ [] = I
| present st (((tr, st'), span) :: rest) = present_command tr span st st' #> present st' rest;
in
if length command_results = length spans then
((NONE, []), NONE, true, Buffer.empty, (I, I))
|> present Toplevel.toplevel (command_results ~~ spans)
|> present_trailer
else error "Messed-up outer syntax for presentation"
end;
end;
(** setup default output **)
(* options *)
val _ =
Context.>> (Context.map_theory
(add_option (Binding.name "show_types") (Config.put show_types o boolean) #>
add_option (Binding.name "show_sorts") (Config.put show_sorts o boolean) #>
add_option (Binding.name "show_structs") (Config.put show_structs o boolean) #>
add_option (Binding.name "show_question_marks") (Config.put show_question_marks o boolean) #>
add_option (Binding.name "show_abbrevs") (Config.put show_abbrevs o boolean) #>
add_option (Binding.name "names_long") (Config.put Name_Space.names_long o boolean) #>
add_option (Binding.name "names_short") (Config.put Name_Space.names_short o boolean) #>
add_option (Binding.name "names_unique") (Config.put Name_Space.names_unique o boolean) #>
add_option (Binding.name "eta_contract") (Config.put Syntax_Trans.eta_contract o boolean) #>
add_option (Binding.name "display") (Config.put display o boolean) #>
add_option (Binding.name "break") (Config.put break o boolean) #>
add_option (Binding.name "quotes") (Config.put quotes o boolean) #>
add_option (Binding.name "mode") (add_wrapper o Print_Mode.with_modes o single) #>
add_option (Binding.name "margin") (add_wrapper o setmp_CRITICAL Pretty.margin_default o integer) #>
add_option (Binding.name "indent") (Config.put indent o integer) #>
add_option (Binding.name "source") (Config.put source o boolean) #>
add_option (Binding.name "goals_limit") (Config.put Goal_Display.goals_limit o integer)));
(* basic pretty printing *)
fun tweak_line ctxt s =
if Config.get ctxt display then s else Symbol.strip_blanks s;
fun pretty_text ctxt =
Pretty.chunks o map Pretty.str o map (tweak_line ctxt) o split_lines;
fun pretty_term ctxt t = Syntax.pretty_term (Variable.auto_fixes t ctxt) t;
fun pretty_thm ctxt = pretty_term ctxt o Thm.full_prop_of;
fun pretty_term_style ctxt (style, t) =
pretty_term ctxt (style t);
fun pretty_thm_style ctxt (style, th) =
pretty_term ctxt (style (Thm.full_prop_of th));
fun pretty_term_typ ctxt (style, t) =
let val t' = style t
in pretty_term ctxt (Type.constraint (Term.fastype_of t') t') end;
fun pretty_term_typeof ctxt (style, t) =
Syntax.pretty_typ ctxt (Term.fastype_of (style t));
fun pretty_const ctxt c =
let
val t = Const (c, Consts.type_scheme (Proof_Context.consts_of ctxt) c)
handle TYPE (msg, _, _) => error msg;
val ([t'], _) = Variable.import_terms true [t] ctxt;
in pretty_term ctxt t' end;
fun pretty_abbrev ctxt s =
let
val t = Syntax.read_term (Proof_Context.set_mode Proof_Context.mode_abbrev ctxt) s;
fun err () = error ("Abbreviated constant expected: " ^ Syntax.string_of_term ctxt t);
val (head, args) = Term.strip_comb t;
val (c, T) = Term.dest_Const head handle TERM _ => err ();
val (U, u) = Consts.the_abbreviation (Proof_Context.consts_of ctxt) c
handle TYPE _ => err ();
val t' = Term.betapplys (Envir.expand_atom T (U, u), args);
val eq = Logic.mk_equals (t, t');
val ctxt' = Variable.auto_fixes eq ctxt;
in Proof_Context.pretty_term_abbrev ctxt' eq end;
fun pretty_class ctxt =
Pretty.str o Proof_Context.extern_class ctxt o Proof_Context.read_class ctxt;
fun pretty_type ctxt s =
let val Type (name, _) = Proof_Context.read_type_name_proper ctxt false s
in Pretty.str (Proof_Context.extern_type ctxt name) end;
fun pretty_prf full ctxt = Proof_Syntax.pretty_proof_of ctxt full;
fun pretty_theory ctxt (name, pos) =
(case find_first (fn thy => Context.theory_name thy = name)
(Theory.nodes_of (Proof_Context.theory_of ctxt)) of
NONE => error ("No ancestor theory " ^ quote name ^ Position.here pos)
| SOME thy => (Position.report pos (Theory.get_markup thy); Pretty.str name));
(* default output *)
val str_of_source = space_implode " " o map Token.unparse o #2 o #1 o Args.dest_src;
fun maybe_pretty_source pretty ctxt src xs =
map (pretty ctxt) xs (*always pretty in order to exhibit errors!*)
|> (if Config.get ctxt source then K [pretty_text ctxt (str_of_source src)] else I);
fun output ctxt prts =
prts
|> (if Config.get ctxt quotes then map Pretty.quote else I)
|> (if Config.get ctxt display then
map (Output.output o Pretty.string_of o Pretty.indent (Config.get ctxt indent))
#> space_implode "\\isasep\\isanewline%\n"
#> enclose "\\begin{isabelle}%\n" "%\n\\end{isabelle}"
else
map (Output.output o (if Config.get ctxt break then Pretty.string_of else Pretty.str_of))
#> space_implode "\\isasep\\isanewline%\n"
#> enclose "\\isa{" "}");
(** concrete antiquotations **)
(* basic entities *)
local
fun basic_entities name scan pretty = antiquotation name scan
(fn {source, context, ...} => output context o maybe_pretty_source pretty context source);
fun basic_entities_style name scan pretty = antiquotation name scan
(fn {source, context, ...} => fn (style, xs) =>
output context
(maybe_pretty_source (fn ctxt => fn x => pretty ctxt (style, x)) context source xs));
fun basic_entity name scan = basic_entities name (scan >> single);
in
val _ =
Context.>> (Context.map_theory
(basic_entities_style (Binding.name "thm") (Term_Style.parse -- Attrib.thms) pretty_thm_style #>
basic_entity (Binding.name "prop") (Term_Style.parse -- Args.prop) pretty_term_style #>
basic_entity (Binding.name "term") (Term_Style.parse -- Args.term) pretty_term_style #>
basic_entity (Binding.name "term_type") (Term_Style.parse -- Args.term) pretty_term_typ #>
basic_entity (Binding.name "typeof") (Term_Style.parse -- Args.term) pretty_term_typeof #>
basic_entity (Binding.name "const") (Args.const_proper false) pretty_const #>
basic_entity (Binding.name "abbrev") (Scan.lift Args.name_source) pretty_abbrev #>
basic_entity (Binding.name "typ") Args.typ_abbrev Syntax.pretty_typ #>
basic_entity (Binding.name "class") (Scan.lift Args.name_source) pretty_class #>
basic_entity (Binding.name "type") (Scan.lift Args.name) pretty_type #>
basic_entity (Binding.name "text") (Scan.lift Args.name) pretty_text #>
basic_entities (Binding.name "prf") Attrib.thms (pretty_prf false) #>
basic_entities (Binding.name "full_prf") Attrib.thms (pretty_prf true) #>
basic_entity (Binding.name "theory") (Scan.lift (Parse.position Args.name)) pretty_theory));
end;
(* goal state *)
local
fun proof_state state =
(case try (Proof.goal o Toplevel.proof_of) state of
SOME {goal, ...} => goal
| _ => error "No proof state");
fun goal_state name main = antiquotation name (Scan.succeed ())
(fn {state, context = ctxt, ...} => fn () => output ctxt
[Goal_Display.pretty_goal {main = main, limit = true} ctxt (proof_state state)]);
in
val _ =
Context.>> (Context.map_theory
(goal_state (Binding.name "goals") true #>
goal_state (Binding.name "subgoals") false));
end;
(* embedded lemma *)
val _ = Keyword.define ("by", NONE); (*overlap with command category*)
val _ =
Context.>> (Context.map_theory
(antiquotation (Binding.name "lemma")
(Args.prop -- Scan.lift (Args.$$$ "by" |-- Method.parse -- Scan.option Method.parse))
(fn {source, context, ...} => fn (prop, methods) =>
let
val prop_src =
(case Args.dest_src source of ((a, arg :: _), pos) => Args.src ((a, [arg]), pos));
(* FIXME check proof!? *)
val _ = context
|> Proof.theorem NONE (K I) [[(prop, [])]]
|> Proof.global_terminal_proof methods;
in output context (maybe_pretty_source pretty_term context prop_src [prop]) end)));
(* ML text *)
val verb_text =
split_lines
#> map (space_implode "\\verb,|," o map (enclose "\\verb|" "|") o space_explode "|")
#> space_implode "\\isasep\\isanewline%\n";
local
fun ml_text name ml = antiquotation name (Scan.lift Args.name_source_position)
(fn {context, ...} => fn (txt, pos) =>
(ML_Context.eval_in (SOME context) false pos (ml pos txt);
Symbol_Pos.content (Symbol_Pos.explode (txt, pos))
|> (if Config.get context quotes then quote else I)
|> (if Config.get context display then enclose "\\begin{verbatim}\n" "\n\\end{verbatim}"
else verb_text)));
fun ml_enclose bg en pos txt =
ML_Lex.read Position.none bg @ ML_Lex.read pos txt @ ML_Lex.read Position.none en;
in
val _ =
Context.>> (Context.map_theory
(ml_text (Binding.name "ML") (ml_enclose "fn _ => (" ");") #>
ml_text (Binding.name "ML_op") (ml_enclose "fn _ => (op " ");") #>
ml_text (Binding.name "ML_type") (ml_enclose "val _ = NONE : (" ") option;") #>
ml_text (Binding.name "ML_struct")
(ml_enclose "functor XXX() = struct structure XX = " " end;") #>
ml_text (Binding.name "ML_functor") (* FIXME formal treatment of functor name (!?) *)
(fn pos => fn txt =>
ML_Lex.read Position.none ("ML_Env.check_functor " ^
ML_Syntax.print_string (Symbol_Pos.content (Symbol_Pos.explode (txt, pos))))) #>
ml_text (Binding.name "ML_text") (K (K []))));
end;
end;