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(* Title: Pure/Thy/thy_output.ML
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ID: $Id$
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Author: Markus Wenzel, TU Muenchen
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Theory document output.
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*)
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signature THY_OUTPUT =
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sig
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val display: bool ref
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val quotes: bool ref
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val indent: int ref
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val source: bool ref
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val add_commands: (string * (Args.src -> Toplevel.node option -> string)) list -> unit
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val add_options: (string * (string -> (unit -> string) -> unit -> string)) list -> unit
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val print_antiquotations: unit -> unit
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val boolean: string -> bool
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val integer: string -> int
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val args: (Context.generic * Args.T list -> 'a * (Context.generic * Args.T list)) ->
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(Args.src -> Proof.context -> 'a -> string) -> Args.src -> Toplevel.node option -> string
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datatype markup = Markup | MarkupEnv | Verbatim
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val modes: string list ref
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val eval_antiquote: Scan.lexicon -> Toplevel.node option -> string * Position.T -> string
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val process_thy: Scan.lexicon -> (string -> string list) -> (markup -> string -> bool) ->
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Toplevel.transition list -> (OuterLex.token, 'a) Source.source -> Buffer.T
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val output_list: (Proof.context -> 'a -> Pretty.T) -> Args.src ->
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Proof.context -> 'a list -> string
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val output: (Proof.context -> 'a -> Pretty.T) -> Args.src -> Proof.context -> 'a -> string
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end;
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structure ThyOutput: THY_OUTPUT =
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struct
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structure T = OuterLex;
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structure P = OuterParse;
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(** global options **)
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val locale = ref "";
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val display = ref false;
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val quotes = ref false;
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val indent = ref 0;
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val source = ref false;
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val break = ref false;
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(** maintain global commands **)
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local
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val global_commands =
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ref (Symtab.empty: (Args.src -> Toplevel.node option -> string) Symtab.table);
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val global_options =
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ref (Symtab.empty: (string -> (unit -> string) -> unit -> string) Symtab.table);
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fun add_item kind (name, x) tab =
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(if not (Symtab.defined tab name) then ()
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else warning ("Redefined text antiquotation " ^ kind ^ ": " ^ quote name);
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Symtab.update (name, x) tab);
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in
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fun add_commands xs = CRITICAL (fn () => change global_commands (fold (add_item "command") xs));
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fun add_options xs = CRITICAL (fn () => change global_options (fold (add_item "option") xs));
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fun command src =
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let val ((name, _), pos) = Args.dest_src src in
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(case Symtab.lookup (! global_commands) name of
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NONE => error ("Unknown text antiquotation command: " ^ quote name ^ Position.str_of pos)
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| SOME f => f src)
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end;
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fun option (name, s) f () =
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(case Symtab.lookup (! global_options) name of
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NONE => error ("Unknown text antiquotation option: " ^ quote name)
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| SOME opt => opt s f ());
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fun options [] f = f
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| options (opt :: opts) f = option opt (options opts f);
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fun print_antiquotations () =
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[Pretty.big_list "text antiquotation commands:"
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(map Pretty.str (sort_strings (Symtab.keys (! global_commands)))),
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Pretty.big_list "text antiquotation options:"
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(map Pretty.str (sort_strings (Symtab.keys (! global_options))))]
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|> Pretty.chunks |> Pretty.writeln;
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end;
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(** syntax of antiquotations **)
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(* option values *)
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fun boolean "" = true
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| boolean "true" = true
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| boolean "false" = false
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| boolean s = error ("Bad boolean value: " ^ quote s);
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fun integer s =
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let
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fun int ss =
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(case Library.read_int ss of (i, []) => i
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| _ => error ("Bad integer value: " ^ quote s));
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in (case Symbol.explode s of "-" :: ss => ~ (int ss) | ss => int ss) end;
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(* args syntax *)
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fun syntax scan = Args.context_syntax "text antiquotation" scan;
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fun args scan f src node : string =
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let
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val loc = if ! locale = "" then NONE else SOME (! locale);
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val (x, ctxt) = syntax scan src (Toplevel.presentation_context node loc);
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in f src ctxt x end;
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(* outer syntax *)
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local
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val property = P.xname -- Scan.optional (P.$$$ "=" |-- P.!!! P.xname) "";
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val properties = Scan.optional (P.$$$ "[" |-- P.!!! (P.enum "," property --| P.$$$ "]")) [];
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in
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val antiq = P.!!! (P.position P.xname -- properties -- P.arguments --| Scan.ahead P.eof)
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>> (fn (((x, pos), y), z) => (y, Args.src ((x, z), pos)));
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end;
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(* eval_antiquote *)
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val modes = ref ([]: string list);
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fun eval_antiquote lex node (str, pos) =
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let
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fun expand (Antiquote.Text s) = s
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| expand (Antiquote.Antiq x) =
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let val (opts, src) = Antiquote.scan_arguments lex antiq x in
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options opts (fn () => command src node) (); (*preview errors!*)
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PrintMode.with_modes (! modes @ Latex.modes)
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(Output.no_warnings (options opts (fn () => command src node))) ()
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end;
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val ants = Antiquote.scan_antiquotes (str, pos);
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in
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if is_none node andalso exists Antiquote.is_antiq ants then
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error ("Cannot expand text antiquotations at top-level" ^ Position.str_of pos)
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else implode (map expand ants)
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end;
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(** present theory source **)
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(*NB: arranging white space around command spans is a black art.*)
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(* presentation tokens *)
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datatype token =
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NoToken
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| BasicToken of T.token
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| MarkupToken of string * (string * Position.T)
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| MarkupEnvToken of string * (string * Position.T)
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| VerbatimToken of string * Position.T;
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fun output_token lex state =
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let
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val eval = eval_antiquote lex (try Toplevel.node_of state)
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in
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fn NoToken => ""
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| BasicToken tok => Latex.output_basic tok
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| MarkupToken (cmd, txt) => Latex.output_markup cmd (eval txt)
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| MarkupEnvToken (cmd, txt) => Latex.output_markup_env cmd (eval txt)
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| VerbatimToken txt => Latex.output_verbatim (eval txt)
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end;
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fun basic_token pred (BasicToken tok) = pred tok
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| basic_token _ _ = false;
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val improper_token = basic_token (not o T.is_proper);
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val comment_token = basic_token T.is_comment;
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val blank_token = basic_token T.is_blank;
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val newline_token = basic_token T.is_newline;
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(* command spans *)
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type command = string * Position.T * string list; (*name, position, tags*)
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type source = (token * (string * int)) list; (*token, markup flag, meta-comment depth*)
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datatype span = Span of command * (source * source * source * source) * bool;
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fun make_span cmd src =
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let
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fun take_newline (tok :: toks) =
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if newline_token (fst tok) then ([tok], toks, true)
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else ([], tok :: toks, false)
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| take_newline [] = ([], [], false);
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val (((src_prefix, src_main), src_suffix1), (src_suffix2, src_appendix, newline)) =
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src
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|> take_prefix (improper_token o fst)
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||>> take_suffix (improper_token o fst)
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||>> take_prefix (comment_token o fst)
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||> take_newline;
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in Span (cmd, (src_prefix, src_main, src_suffix1 @ src_suffix2, src_appendix), newline) end;
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(* present spans *)
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local
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fun err_bad_nesting pos =
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error ("Bad nesting of commands in presentation" ^ pos);
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fun edge which f (x: string option, y) =
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if x = y then I
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else (case which (x, y) of NONE => I | SOME txt => Buffer.add (f txt));
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val begin_tag = edge #2 Latex.begin_tag;
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val end_tag = edge #1 Latex.end_tag;
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fun open_delim delim e = edge #2 Latex.begin_delim e #> delim #> edge #2 Latex.end_delim e;
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fun close_delim delim e = edge #1 Latex.begin_delim e #> delim #> edge #1 Latex.end_delim e;
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in
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fun present_span lex default_tags span state state'
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(tag_stack, active_tag, newline, buffer, present_cont) =
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let
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val present = fold (fn (tok, (flag, 0)) =>
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Buffer.add (output_token lex state' tok)
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#> Buffer.add flag
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| _ => I);
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val Span ((cmd_name, cmd_pos, cmd_tags), srcs, span_newline) = span;
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val (tag, tags) = tag_stack;
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val tag' = try hd (fold OuterKeyword.update_tags cmd_tags (the_list tag));
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val active_tag' =
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if is_some tag' then tag'
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else if cmd_name = "end" andalso not (Toplevel.is_toplevel state') then NONE
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else try hd (default_tags cmd_name);
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val edge = (active_tag, active_tag');
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val newline' =
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if is_none active_tag' then span_newline else newline;
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val nesting = Toplevel.level state' - Toplevel.level state;
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val tag_stack' =
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if nesting = 0 andalso not (Toplevel.is_proof state) then tag_stack
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else if nesting >= 0 then (tag', replicate nesting tag @ tags)
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else
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(case Library.drop (~ nesting - 1, tags) of
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tgs :: tgss => (tgs, tgss)
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| [] => err_bad_nesting (Position.str_of cmd_pos));
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val buffer' =
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buffer
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|> end_tag edge
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|> close_delim (fst present_cont) edge
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|> snd present_cont
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|> open_delim (present (#1 srcs)) edge
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|> begin_tag edge
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|> present (#2 srcs);
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val present_cont' =
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if newline then (present (#3 srcs), present (#4 srcs))
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else (I, present (#3 srcs) #> present (#4 srcs));
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in (tag_stack', active_tag', newline', buffer', present_cont') end;
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fun present_trailer ((_, tags), active_tag, _, buffer, present_cont) =
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if not (null tags) then err_bad_nesting " at end of theory"
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else
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buffer
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|> end_tag (active_tag, NONE)
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|> close_delim (fst present_cont) (active_tag, NONE)
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|> snd present_cont;
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end;
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(* process_thy *)
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datatype markup = Markup | MarkupEnv | Verbatim;
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local
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val space_proper =
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Scan.one T.is_blank -- Scan.many T.is_comment -- Scan.one T.is_proper;
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val is_improper = not o (T.is_proper orf T.is_begin_ignore orf T.is_end_ignore);
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val improper = Scan.many is_improper;
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val improper_end = Scan.repeat (Scan.unless space_proper (Scan.one is_improper));
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val blank_end = Scan.repeat (Scan.unless space_proper (Scan.one T.is_blank));
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val opt_newline = Scan.option (Scan.one T.is_newline);
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val ignore =
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Scan.depend (fn d => opt_newline |-- Scan.one T.is_begin_ignore
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>> pair (d + 1)) ||
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Scan.depend (fn d => Scan.one T.is_end_ignore --|
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(if d = 0 then Scan.fail_with (K "Bad nesting of meta-comments") else opt_newline)
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>> pair (d - 1));
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val tag = (improper -- P.$$$ "%" -- improper) |-- P.!!! (P.tag_name --| blank_end);
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val locale =
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Scan.option ((P.$$$ "(" -- improper -- P.$$$ "in") |--
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P.!!! (improper |-- P.xname --| (improper -- P.$$$ ")")));
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in
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fun process_thy lex default_tags is_markup trs src =
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let
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(* tokens *)
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val ignored = Scan.state --| ignore
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>> (fn d => (NONE, (NoToken, ("", d))));
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fun markup mark mk flag = Scan.peek (fn d =>
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improper |-- P.position (Scan.one (T.is_kind T.Command andf is_markup mark o T.val_of)) --
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Scan.repeat tag --
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P.!!!! ((improper -- locale -- improper) |-- P.position P.text --| improper_end)
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>> (fn (((tok, pos), tags), txt) =>
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let val name = T.val_of tok
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in (SOME (name, pos, tags), (mk (name, txt), (flag, d))) end));
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val command = Scan.peek (fn d =>
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P.position (Scan.one (T.is_kind T.Command)) --
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Scan.repeat tag
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>> (fn ((tok, pos), tags) =>
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let val name = T.val_of tok
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in (SOME (name, pos, tags), (BasicToken tok, (Latex.markup_false, d))) end));
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val cmt = Scan.peek (fn d =>
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P.$$$ "--" |-- P.!!!! (improper |-- P.position P.text)
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>> (fn txt => (NONE, (MarkupToken ("cmt", txt), ("", d)))));
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val other = Scan.peek (fn d =>
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P.not_eof >> (fn tok => (NONE, (BasicToken tok, ("", d)))));
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val token =
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ignored ||
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markup Markup MarkupToken Latex.markup_true ||
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markup MarkupEnv MarkupEnvToken Latex.markup_true ||
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markup Verbatim (VerbatimToken o #2) "" ||
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command || cmt || other;
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(* spans *)
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val stopper =
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((NONE, (BasicToken (#1 T.stopper), ("", 0))),
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fn (_, (BasicToken x, _)) => #2 T.stopper x | _ => false);
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val cmd = Scan.one (is_some o fst);
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val non_cmd = Scan.one (is_none o fst andf not o #2 stopper) >> #2;
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val comments = Scan.many (comment_token o fst o snd);
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val blank = Scan.one (blank_token o fst o snd);
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val newline = Scan.one (newline_token o fst o snd);
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val before_cmd =
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Scan.option (newline -- comments) --
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Scan.option (newline -- comments) --
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Scan.option (blank -- comments) -- cmd;
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val span =
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Scan.repeat non_cmd -- cmd --
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Scan.repeat (Scan.unless before_cmd non_cmd) --
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Scan.option (newline >> (single o snd))
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>> (fn (((toks1, (cmd, tok2)), toks3), tok4) =>
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make_span (the cmd) (toks1 @ (tok2 :: (toks3 @ the_default [] tok4))));
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val spans =
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src
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|> Source.filter (not o T.is_semicolon)
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|> Source.source' 0 T.stopper (Scan.error (Scan.bulk token)) NONE
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|> Source.source stopper (Scan.error (Scan.bulk span)) NONE
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|> Source.exhaust;
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in
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if length trs = length spans then
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((NONE, []), NONE, true, Buffer.empty, (I, I))
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|> Toplevel.present_excursion (trs ~~ map (present_span lex default_tags) spans)
|
|
391 |
|> present_trailer
|
|
392 |
else error "Messed-up outer syntax for presentation"
|
|
393 |
end;
|
|
394 |
|
|
395 |
end;
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|
396 |
|
|
397 |
|
|
398 |
|
|
399 |
(** setup default output **)
|
|
400 |
|
|
401 |
(* options *)
|
|
402 |
|
|
403 |
val _ = add_options
|
|
404 |
[("show_types", Library.setmp Syntax.show_types o boolean),
|
|
405 |
("show_sorts", Library.setmp Syntax.show_sorts o boolean),
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|
406 |
("show_structs", Library.setmp show_structs o boolean),
|
|
407 |
("show_question_marks", Library.setmp show_question_marks o boolean),
|
|
408 |
("long_names", Library.setmp NameSpace.long_names o boolean),
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|
409 |
("short_names", Library.setmp NameSpace.short_names o boolean),
|
|
410 |
("unique_names", Library.setmp NameSpace.unique_names o boolean),
|
|
411 |
("eta_contract", Library.setmp Syntax.eta_contract o boolean),
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|
412 |
("locale", Library.setmp locale),
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|
413 |
("display", Library.setmp display o boolean),
|
|
414 |
("break", Library.setmp break o boolean),
|
|
415 |
("quotes", Library.setmp quotes o boolean),
|
23935
|
416 |
("mode", fn s => fn f => PrintMode.with_modes [s] f),
|
22124
|
417 |
("margin", Pretty.setmp_margin o integer),
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|
418 |
("indent", Library.setmp indent o integer),
|
|
419 |
("source", Library.setmp source o boolean),
|
|
420 |
("goals_limit", Library.setmp goals_limit o integer)];
|
|
421 |
|
|
422 |
|
|
423 |
(* basic pretty printing *)
|
|
424 |
|
|
425 |
val str_of_source = space_implode " " o map Args.string_of o #2 o #1 o Args.dest_src;
|
|
426 |
|
|
427 |
fun tweak_line s =
|
|
428 |
if ! display then s else Symbol.strip_blanks s;
|
|
429 |
|
|
430 |
val pretty_text = Pretty.chunks o map Pretty.str o map tweak_line o Library.split_lines;
|
|
431 |
|
24920
|
432 |
fun pretty_term ctxt = Syntax.pretty_term ctxt o ProofContext.revert_skolems ctxt;
|
|
433 |
|
22124
|
434 |
fun pretty_term_abbrev ctxt =
|
|
435 |
ProofContext.pretty_term_abbrev ctxt o ProofContext.revert_skolems ctxt;
|
|
436 |
|
|
437 |
fun pretty_term_typ ctxt t =
|
24920
|
438 |
Syntax.pretty_term ctxt (TypeInfer.constrain (Term.fastype_of t) t);
|
22124
|
439 |
|
24920
|
440 |
fun pretty_term_typeof ctxt = Syntax.pretty_typ ctxt o Term.fastype_of;
|
22124
|
441 |
|
|
442 |
fun pretty_term_const ctxt t =
|
|
443 |
if Term.is_Const t then pretty_term ctxt t
|
24920
|
444 |
else error ("Logical constant expected: " ^ Syntax.string_of_term ctxt t);
|
22124
|
445 |
|
|
446 |
fun pretty_abbrev ctxt t =
|
|
447 |
let
|
24920
|
448 |
fun err () = error ("Abbreviated constant expected: " ^ Syntax.string_of_term ctxt t);
|
22124
|
449 |
val (head, args) = Term.strip_comb t;
|
|
450 |
val (c, T) = Term.dest_Const head handle TERM _ => err ();
|
|
451 |
val (U, (u, _)) = Consts.the_abbreviation (ProofContext.consts_of ctxt) c
|
|
452 |
handle TYPE _ => err ();
|
|
453 |
val t' = Term.betapplys (Envir.expand_atom T (U, u), args);
|
|
454 |
in pretty_term_abbrev ctxt (Logic.mk_equals (t, t')) end;
|
|
455 |
|
|
456 |
fun pretty_thm ctxt = pretty_term ctxt o Thm.full_prop_of;
|
|
457 |
|
|
458 |
fun pretty_term_style ctxt (name, t) =
|
|
459 |
pretty_term ctxt (TermStyle.the_style (ProofContext.theory_of ctxt) name ctxt t);
|
|
460 |
|
|
461 |
fun pretty_thm_style ctxt (name, th) =
|
|
462 |
pretty_term_style ctxt (name, Thm.full_prop_of th);
|
|
463 |
|
|
464 |
fun pretty_prf full ctxt thms =
|
|
465 |
Pretty.chunks (map (ProofContext.pretty_proof_of ctxt full) thms);
|
|
466 |
|
|
467 |
fun pretty_theory ctxt name =
|
|
468 |
(Theory.requires (ProofContext.theory_of ctxt) name "presentation"; Pretty.str name);
|
|
469 |
|
|
470 |
|
|
471 |
(* Isar output *)
|
|
472 |
|
|
473 |
fun output_list pretty src ctxt xs =
|
|
474 |
map (pretty ctxt) xs (*always pretty in order to exhibit errors!*)
|
|
475 |
|> (if ! source then K [pretty_text (str_of_source src)] else I)
|
|
476 |
|> (if ! quotes then map Pretty.quote else I)
|
|
477 |
|> (if ! display then
|
|
478 |
map (Output.output o Pretty.string_of o Pretty.indent (! indent))
|
|
479 |
#> space_implode "\\isasep\\isanewline%\n"
|
|
480 |
#> enclose "\\begin{isabelle}%\n" "%\n\\end{isabelle}"
|
|
481 |
else
|
|
482 |
map (Output.output o (if ! break then Pretty.string_of else Pretty.str_of))
|
|
483 |
#> space_implode "\\isasep\\isanewline%\n"
|
|
484 |
#> enclose "\\isa{" "}");
|
|
485 |
|
|
486 |
fun output pretty src ctxt = output_list pretty src ctxt o single;
|
|
487 |
|
|
488 |
fun proof_state node =
|
|
489 |
(case Option.map Toplevel.proof_node node of
|
|
490 |
SOME (SOME prf) => ProofHistory.current prf
|
|
491 |
| _ => error "No proof state");
|
|
492 |
|
|
493 |
fun output_goals main_goal src node = args (Scan.succeed ()) (output (fn _ => fn _ =>
|
|
494 |
Pretty.chunks (Proof.pretty_goals main_goal (proof_state node)))) src node;
|
|
495 |
|
|
496 |
fun ml_val txt = "fn _ => (" ^ txt ^ ");";
|
|
497 |
fun ml_type txt = "val _ = NONE : (" ^ txt ^ ") option;";
|
|
498 |
fun ml_struct txt = "functor DUMMY_FUNCTOR() = struct structure DUMMY = " ^ txt ^ " end;"
|
|
499 |
|
|
500 |
fun output_ml ml src ctxt txt =
|
|
501 |
(ML_Context.use_mltext (ml txt) false (SOME (Context.Proof ctxt));
|
|
502 |
(if ! source then str_of_source src else txt)
|
|
503 |
|> (if ! quotes then quote else I)
|
|
504 |
|> (if ! display then enclose "\\begin{verbatim}\n" "\n\\end{verbatim}"
|
|
505 |
else
|
|
506 |
split_lines
|
|
507 |
#> map (space_implode "\\verb,|," o map (enclose "\\verb|" "|") o space_explode "|")
|
|
508 |
#> space_implode "\\isasep\\isanewline%\n"));
|
|
509 |
|
|
510 |
|
|
511 |
(* commands *)
|
|
512 |
|
|
513 |
val _ = add_commands
|
|
514 |
[("thm", args Attrib.thms (output_list pretty_thm)),
|
|
515 |
("thm_style", args (Scan.lift Args.liberal_name -- Attrib.thm) (output pretty_thm_style)),
|
|
516 |
("prop", args Args.prop (output pretty_term)),
|
|
517 |
("term", args Args.term (output pretty_term)),
|
|
518 |
("term_style", args (Scan.lift Args.liberal_name -- Args.term) (output pretty_term_style)),
|
|
519 |
("term_type", args Args.term (output pretty_term_typ)),
|
|
520 |
("typeof", args Args.term (output pretty_term_typeof)),
|
|
521 |
("const", args Args.term (output pretty_term_const)),
|
|
522 |
("abbrev", args Args.term_abbrev (output pretty_abbrev)),
|
24920
|
523 |
("typ", args Args.typ_abbrev (output Syntax.pretty_typ)),
|
22124
|
524 |
("text", args (Scan.lift Args.name) (output (K pretty_text))),
|
|
525 |
("goals", output_goals true),
|
|
526 |
("subgoals", output_goals false),
|
|
527 |
("prf", args Attrib.thms (output (pretty_prf false))),
|
|
528 |
("full_prf", args Attrib.thms (output (pretty_prf true))),
|
|
529 |
("theory", args (Scan.lift Args.name) (output pretty_theory)),
|
|
530 |
("ML", args (Scan.lift Args.name) (output_ml ml_val)),
|
|
531 |
("ML_type", args (Scan.lift Args.name) (output_ml ml_type)),
|
|
532 |
("ML_struct", args (Scan.lift Args.name) (output_ml ml_struct))];
|
|
533 |
|
|
534 |
end;
|