doc-src/more_antiquote.ML

consider TeX spacing conventions for punctuation marks

(*  Title:      Doc/more_antiquote.ML
    ID:         $Id$
    Author:     Florian Haftmann, TU Muenchen

More antiquotations.
*)

signature MORE_ANTIQUOTE =
sig
  val typewriter: string -> string
end;

structure More_Antiquote : MORE_ANTIQUOTE =
struct

structure O = ThyOutput;

(* printing typewriter lines *)

fun typewriter s =
  let
    val parse = Scan.repeat
      (Scan.this_string "\n" |-- Scan.succeed "\\\\\n\\hspace*{0pt}"
        || (Scan.this_string " " 
          || Scan.this_string "."
          || Scan.this_string ","
          || Scan.this_string ":"
          || Scan.this_string ";"
          || Scan.this_string "\"" |-- Scan.succeed "{\\char34}"
          || Scan.this_string "#" |-- Scan.succeed "{\\char35}"
          || Scan.this_string "$" |-- Scan.succeed "{\\char36}"
          || Scan.this_string "%" |-- Scan.succeed "{\\char37}"
          || Scan.this_string "&" |-- Scan.succeed "{\\char38}"
          || Scan.this_string "\\" |-- Scan.succeed "{\\char92}"
          || Scan.this_string "^" |-- Scan.succeed "{\\char94}"
          || Scan.this_string "_" |-- Scan.succeed "{\\char95}"
          || Scan.this_string "{" |-- Scan.succeed "{\\char123}"
          || Scan.this_string "}" |-- Scan.succeed "{\\char125}"
          || Scan.this_string "~" |-- Scan.succeed "{\\char126}")
          -- Scan.repeat (Scan.this_string " ")
          >> (fn (x, xs) => x ^ replicate_string (length xs) "~")
        || Scan.one Symbol.not_eof);
    fun is_newline s = (s = "\n");
    val cs = explode s |> take_prefix is_newline |> snd
      |> take_suffix is_newline |> fst;
    val (texts, []) =  Scan.finite Symbol.stopper parse cs
  in if null texts
    then ""
    else implode ("\\isatypewriter%\n\\noindent%\n\\hspace*{0pt}" :: texts)
  end


(* class antiquotation *)

local

val pr_text = enclose "\\isa{" "}" o Pretty.output o Pretty.str;

fun pr_class ctxt = Sign.read_class (ProofContext.theory_of ctxt)
  #> Sign.extern_class (ProofContext.theory_of ctxt)
  #> pr_text;

fun pr_type ctxt = Sign.intern_type (ProofContext.theory_of ctxt)
  #> tap (Sign.arity_number (ProofContext.theory_of ctxt))
  #> Sign.extern_type (ProofContext.theory_of ctxt)
  #> pr_text;

in

val _ = O.add_commands
  [("class", ThyOutput.args (Scan.lift Args.name) (K pr_class)),
    ("type", ThyOutput.args (Scan.lift Args.name) (K pr_type))]

end;


(* code antiquotation *)

local

  val parse_const_terms = Scan.repeat1 Args.term
    >> (fn ts => fn thy => map (Code_Unit.check_const thy) ts);
  val parse_consts = Scan.lift (Args.parens (Args.$$$ "consts")) |-- parse_const_terms
    >> (fn mk_cs => fn thy => fn naming => map (the o Code_Thingol.lookup_const naming) (mk_cs thy));
  val parse_types = Scan.lift (Args.parens (Args.$$$ "types") |-- Scan.repeat1 Args.name)
    >> (fn tycos => fn thy => fn naming => map (the o Code_Thingol.lookup_tyco naming o Sign.intern_type thy) tycos);
  val parse_classes = Scan.lift (Args.parens (Args.$$$ "classes") |-- Scan.repeat1 Args.name)
    >> (fn classes => fn thy => fn naming => map (the o Code_Thingol.lookup_class naming o Sign.intern_class thy) classes);
  val parse_instances = Scan.lift (Args.parens (Args.$$$ "instances") |-- Scan.repeat1 (Args.name --| Args.$$$ "::" -- Args.name))
    >> (fn insts => fn thy => fn naming => map (the o Code_Thingol.lookup_instance naming o apsnd (Sign.intern_type thy) o apfst (Sign.intern_class thy) o swap) insts);
  val parse_names = parse_consts || parse_types || parse_classes || parse_instances; 

  fun code_stmts src ctxt ((mk_cs, mk_stmtss), target) =
    Code_Target.code_of (ProofContext.theory_of ctxt)
      target "Example" (mk_cs (ProofContext.theory_of ctxt))
        (fn naming => maps (fn f => f (ProofContext.theory_of ctxt) naming) mk_stmtss)
    |> typewriter;

in

val _ = O.add_commands
  [("code_stmts", O.args
      (parse_const_terms -- Scan.repeat parse_names -- Scan.lift (Args.parens Args.name))
        code_stmts)]

end

end;