(*  Title:      Pure/General/markup.ML

    Author:     Makarius

Common markup elements.

*)

signature MARKUP =

sig

  val parse_int: string -> int

  val print_int: int -> string

  type T = string * Properties.T

  val empty: T

  val is_empty: T -> bool

  val properties: Properties.T -> T -> T

  val nameN: string

  val name: string -> T -> T

  val kindN: string

  val bindingN: string val binding: T

  val entityN: string val entity: string -> string -> T

  val get_entity_kind: T -> string option

  val defN: string

  val refN: string

  val lineN: string

  val columnN: string

  val offsetN: string

  val end_offsetN: string

  val fileN: string

  val idN: string

  val position_properties': string list

  val position_properties: string list

  val positionN: string val position: T

  val indentN: string

  val blockN: string val block: int -> T

  val widthN: string

  val breakN: string val break: int -> T

  val fbreakN: string val fbreak: T

  val hiddenN: string val hidden: T

  val classN: string

  val tyconN: string val tycon: string -> T

  val fixedN: string val fixed: string -> T

  val constN: string val const: string -> T

  val dynamic_factN: string val dynamic_fact: string -> T

  val tfreeN: string val tfree: T

  val tvarN: string val tvar: T

  val freeN: string val free: T

  val skolemN: string val skolem: T

  val boundN: string val bound: T

  val varN: string val var: T

  val numeralN: string val numeral: T

  val literalN: string val literal: T

  val delimiterN: string val delimiter: T

  val inner_stringN: string val inner_string: T

  val inner_commentN: string val inner_comment: T

  val token_rangeN: string val token_range: T

  val sortN: string val sort: T

  val typN: string val typ: T

  val termN: string val term: T

  val propN: string val prop: T

  val ML_keywordN: string val ML_keyword: T

  val ML_delimiterN: string val ML_delimiter: T

  val ML_identN: string val ML_ident: T

  val ML_tvarN: string val ML_tvar: T

  val ML_numeralN: string val ML_numeral: T

  val ML_charN: string val ML_char: T

  val ML_stringN: string val ML_string: T

  val ML_commentN: string val ML_comment: T

  val ML_malformedN: string val ML_malformed: T

  val ML_defN: string

  val ML_openN: string

  val ML_structN: string

  val ML_typingN: string val ML_typing: T

  val ML_sourceN: string val ML_source: T

  val doc_sourceN: string val doc_source: T

  val antiqN: string val antiq: T

  val ML_antiqN: string val ML_antiq: string -> T

  val doc_antiqN: string val doc_antiq: string -> T

  val keyword_declN: string val keyword_decl: string -> T

  val command_declN: string val command_decl: string -> string -> T

  val keywordN: string val keyword: T

  val operatorN: string val operator: T

  val commandN: string val command: T

  val identN: string val ident: T

  val stringN: string val string: T

  val altstringN: string val altstring: T

  val verbatimN: string val verbatim: T

  val commentN: string val comment: T

  val controlN: string val control: T

  val malformedN: string val malformed: T

  val tokenN: string val token: Properties.T -> T

  val command_spanN: string val command_span: string -> T

  val ignored_spanN: string val ignored_span: T

  val malformed_spanN: string val malformed_span: T

  val elapsedN: string

  val cpuN: string

  val gcN: string

  val timingN: string val timing: Timing.timing -> T

  val subgoalsN: string

  val proof_stateN: string val proof_state: int -> T

  val stateN: string val state: T

  val subgoalN: string val subgoal: T

  val sendbackN: string val sendback: T

  val hiliteN: string val hilite: T

  val taskN: string

  val forkedN: string val forked: T

  val joinedN: string val joined: T

  val failedN: string val failed: T

  val finishedN: string val finished: T

  val versionN: string

  val execN: string

  val assignN: string val assign: int -> T

  val editN: string val edit: int -> int -> T

  val serialN: string

  val promptN: string val prompt: T

  val readyN: string val ready: T

  val reportN: string val report: T

  val no_reportN: string val no_report: T

  val badN: string val bad: T

  val no_output: Output.output * Output.output

  val default_output: T -> Output.output * Output.output

  val add_mode: string -> (T -> Output.output * Output.output) -> unit

  val output: T -> Output.output * Output.output

  val enclose: T -> Output.output -> Output.output

  val markup: T -> string -> string

end;

structure Markup: MARKUP =

struct

(** markup elements **)

(* integers *)

fun parse_int s =

  (case Int.fromString s of

    SOME i => i

  | NONE => raise Fail ("Bad integer: " ^ quote s));

val print_int = signed_string_of_int;

(* basic markup *)

type T = string * Properties.T;

val empty = ("", []);

fun is_empty ("", _) = true

  | is_empty _ = false;

fun properties more_props ((elem, props): T) =

  (elem, fold_rev Properties.put more_props props);

fun markup_elem elem = (elem, (elem, []): T);

fun markup_string elem prop = (elem, fn s => (elem, [(prop, s)]): T);

fun markup_int elem prop = (elem, fn i => (elem, [(prop, print_int i)]): T);

(* misc properties *)

val nameN = "name";

fun name a = properties [(nameN, a)];

val kindN = "kind";

(* formal entities *)

val (bindingN, binding) = markup_elem "binding";

val entityN = "entity";

fun entity kind name = (entityN, [(nameN, name), (kindN, kind)]);

fun get_entity_kind (name, props) =

  if name = entityN then AList.lookup (op =) props kindN

  else NONE;

val defN = "def";

val refN = "ref";

(* position *)

val lineN = "line";

val columnN = "column";

val offsetN = "offset";

val end_offsetN = "end_offset";

val fileN = "file";

val idN = "id";

val position_properties' = [fileN, idN];

val position_properties = [lineN, columnN, offsetN, end_offsetN] @ position_properties';

val (positionN, position) = markup_elem "position";

(* pretty printing *)

val indentN = "indent";

val (blockN, block) = markup_int "block" indentN;

val widthN = "width";

val (breakN, break) = markup_int "break" widthN;

val (fbreakN, fbreak) = markup_elem "fbreak";

(* hidden text *)

val (hiddenN, hidden) = markup_elem "hidden";

(* logical entities *)

val classN = "class";

val (tyconN, tycon) = markup_string "tycon" nameN;

val (fixedN, fixed) = markup_string "fixed" nameN;

val (constN, const) = markup_string "constant" nameN;

val (dynamic_factN, dynamic_fact) = markup_string "dynamic_fact" nameN;

(* inner syntax *)

val (tfreeN, tfree) = markup_elem "tfree";

val (tvarN, tvar) = markup_elem "tvar";

val (freeN, free) = markup_elem "free";

val (skolemN, skolem) = markup_elem "skolem";

val (boundN, bound) = markup_elem "bound";

val (varN, var) = markup_elem "var";

val (numeralN, numeral) = markup_elem "numeral";

val (literalN, literal) = markup_elem "literal";

val (delimiterN, delimiter) = markup_elem "delimiter";

val (inner_stringN, inner_string) = markup_elem "inner_string";

val (inner_commentN, inner_comment) = markup_elem "inner_comment";

val (token_rangeN, token_range) = markup_elem "token_range";

val (sortN, sort) = markup_elem "sort";

val (typN, typ) = markup_elem "typ";

val (termN, term) = markup_elem "term";

val (propN, prop) = markup_elem "prop";

(* ML syntax *)

val (ML_keywordN, ML_keyword) = markup_elem "ML_keyword";

val (ML_delimiterN, ML_delimiter) = markup_elem "ML_delimiter";

val (ML_identN, ML_ident) = markup_elem "ML_ident";

val (ML_tvarN, ML_tvar) = markup_elem "ML_tvar";

val (ML_numeralN, ML_numeral) = markup_elem "ML_numeral";

val (ML_charN, ML_char) = markup_elem "ML_char";

val (ML_stringN, ML_string) = markup_elem "ML_string";

val (ML_commentN, ML_comment) = markup_elem "ML_comment";

val (ML_malformedN, ML_malformed) = markup_elem "ML_malformed";

val ML_defN = "ML_def";

val ML_openN = "ML_open";

val ML_structN = "ML_struct";

val (ML_typingN, ML_typing) = markup_elem "ML_typing";

(* embedded source text *)

val (ML_sourceN, ML_source) = markup_elem "ML_source";

val (doc_sourceN, doc_source) = markup_elem "doc_source";

val (antiqN, antiq) = markup_elem "antiq";

val (ML_antiqN, ML_antiq) = markup_string "ML_antiq" nameN;

val (doc_antiqN, doc_antiq) = markup_string "doc_antiq" nameN;

(* outer syntax *)

val (keyword_declN, keyword_decl) = markup_string "keyword_decl" nameN;

val command_declN = "command_decl";

fun command_decl name kind : T = (command_declN, [(nameN, name), (kindN, kind)]);

val (keywordN, keyword) = markup_elem "keyword";

val (operatorN, operator) = markup_elem "operator";

val (commandN, command) = markup_elem "command";

val (identN, ident) = markup_elem "ident";

val (stringN, string) = markup_elem "string";

val (altstringN, altstring) = markup_elem "altstring";

val (verbatimN, verbatim) = markup_elem "verbatim";

val (commentN, comment) = markup_elem "comment";

val (controlN, control) = markup_elem "control";

val (malformedN, malformed) = markup_elem "malformed";

val tokenN = "token";

fun token props = (tokenN, props);

val (command_spanN, command_span) = markup_string "command_span" nameN;

val (ignored_spanN, ignored_span) = markup_elem "ignored_span";

val (malformed_spanN, malformed_span) = markup_elem "malformed_span";

(* timing *)

val timingN = "timing";

val elapsedN = "elapsed";

val cpuN = "cpu";

val gcN = "gc";

fun timing {elapsed, cpu, gc} =

  (timingN,

   [(elapsedN, Time.toString elapsed),

    (cpuN, Time.toString cpu),

    (gcN, Time.toString gc)]);

(* toplevel *)

val subgoalsN = "subgoals";

val (proof_stateN, proof_state) = markup_int "proof_state" subgoalsN;

val (stateN, state) = markup_elem "state";

val (subgoalN, subgoal) = markup_elem "subgoal";

val (sendbackN, sendback) = markup_elem "sendback";

val (hiliteN, hilite) = markup_elem "hilite";

(* command status *)

val taskN = "task";

val (forkedN, forked) = markup_elem "forked";

val (joinedN, joined) = markup_elem "joined";

val (failedN, failed) = markup_elem "failed";

val (finishedN, finished) = markup_elem "finished";

(* interactive documents *)

val versionN = "version";

val execN = "exec";

val (assignN, assign) = markup_int "assign" versionN;

val editN = "edit";

fun edit cmd_id exec_id : T = (editN, [(idN, print_int cmd_id), (execN, print_int exec_id)]);

(* messages *)

val serialN = "serial";

val (promptN, prompt) = markup_elem "prompt";

val (readyN, ready) = markup_elem "ready";

val (reportN, report) = markup_elem "report";

val (no_reportN, no_report) = markup_elem "no_report";

val (badN, bad) = markup_elem "bad";

(** print mode operations **)

val no_output = ("", "");

fun default_output (_: T) = no_output;

local

  val default = {output = default_output};

  val modes = Unsynchronized.ref (Symtab.make [("", default)]);

in

  fun add_mode name output = CRITICAL (fn () =>

    Unsynchronized.change modes (Symtab.update_new (name, {output = output})));

  fun get_mode () =

    the_default default (Library.get_first (Symtab.lookup (! modes)) (print_mode_value ()));

end;

fun output m = if is_empty m then no_output else #output (get_mode ()) m;

val enclose = output #-> Library.enclose;

fun markup m =

  let val (bg, en) = output m

  in Library.enclose (Output.escape bg) (Output.escape en) end;

end;