author | wenzelm |
Tue, 18 Mar 2014 11:27:09 +0100 | |
changeset 56201 | dd2df97b379b |
parent 56032 | b034b9f0fa2a |
child 56203 | 76c72f4d0667 |
permissions | -rw-r--r-- |
22107 | 1 |
(* Title: Pure/Thy/term_style.ML |
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Author: Florian Haftmann, TU Muenchen |
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generalized term styles: transformations may depend on arguments; modernized term_style module; antiquotations thm, prop and term accepting term styles
haftmann
parents:
29606
diff
changeset
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Styles for term printing. |
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*) |
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signature TERM_STYLE = |
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sig |
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val setup: binding -> (Proof.context -> term -> term) parser -> theory -> theory |
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generalized term styles: transformations may depend on arguments; modernized term_style module; antiquotations thm, prop and term accepting term styles
haftmann
parents:
29606
diff
changeset
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val parse: (term -> term) context_parser |
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end; |
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32890
77df12652210
generalized term styles: transformations may depend on arguments; modernized term_style module; antiquotations thm, prop and term accepting term styles
haftmann
parents:
29606
diff
changeset
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structure Term_Style: TERM_STYLE = |
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struct |
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(* theory data *) |
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structure Data = Theory_Data |
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( |
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type T = (Proof.context -> term -> term) parser Name_Space.table; |
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val empty : T = Name_Space.empty_table "antiquotation_style"; |
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val extend = I; |
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fun merge data : T = Name_Space.merge_tables data; |
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); |
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val get_data = Data.get o Proof_Context.theory_of; |
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val get_style = Name_Space.get o get_data; |
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fun setup binding style thy = |
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Data.map (#2 o Name_Space.define (Context.Theory thy) true (binding, style)) thy; |
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32890
77df12652210
generalized term styles: transformations may depend on arguments; modernized term_style module; antiquotations thm, prop and term accepting term styles
haftmann
parents:
29606
diff
changeset
|
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(* style parsing *) |
77df12652210
generalized term styles: transformations may depend on arguments; modernized term_style module; antiquotations thm, prop and term accepting term styles
haftmann
parents:
29606
diff
changeset
|
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fun parse_single ctxt = |
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Parse.position Parse.xname -- Parse.args >> (fn (name, args) => |
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let |
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clarified Args.check_src: retain name space information for error output;
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val (src, parse) = Args.check_src ctxt (get_data ctxt) (Args.src name args); |
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clarified Args.check_src: retain name space information for error output;
wenzelm
parents:
56030
diff
changeset
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val (f, _) = Args.syntax (Scan.lift parse) src ctxt; |
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in f ctxt end); |
32890
77df12652210
generalized term styles: transformations may depend on arguments; modernized term_style module; antiquotations thm, prop and term accepting term styles
haftmann
parents:
29606
diff
changeset
|
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val parse = Args.context :|-- (fn ctxt => Scan.lift |
32890
77df12652210
generalized term styles: transformations may depend on arguments; modernized term_style module; antiquotations thm, prop and term accepting term styles
haftmann
parents:
29606
diff
changeset
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(Args.parens (parse_single ctxt ::: Scan.repeat (Args.$$$ "," |-- parse_single ctxt)) |
77df12652210
generalized term styles: transformations may depend on arguments; modernized term_style module; antiquotations thm, prop and term accepting term styles
haftmann
parents:
29606
diff
changeset
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>> fold I |
77df12652210
generalized term styles: transformations may depend on arguments; modernized term_style module; antiquotations thm, prop and term accepting term styles
haftmann
parents:
29606
diff
changeset
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|| Scan.succeed I)); |
77df12652210
generalized term styles: transformations may depend on arguments; modernized term_style module; antiquotations thm, prop and term accepting term styles
haftmann
parents:
29606
diff
changeset
|
46 |
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77df12652210
generalized term styles: transformations may depend on arguments; modernized term_style module; antiquotations thm, prop and term accepting term styles
haftmann
parents:
29606
diff
changeset
|
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(* predefined styles *) |
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fun style_lhs_rhs proj = Scan.succeed (fn ctxt => fn t => |
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let |
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val concl = |
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Object_Logic.drop_judgment (Proof_Context.theory_of ctxt) (Logic.strip_imp_concl t) |
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in |
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(case concl of |
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_ $ l $ r => proj (l, r) |
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| _ => error ("Binary operator expected in term: " ^ Syntax.string_of_term ctxt concl)) |
32890
77df12652210
generalized term styles: transformations may depend on arguments; modernized term_style module; antiquotations thm, prop and term accepting term styles
haftmann
parents:
29606
diff
changeset
|
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end); |
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val style_prem = Parse.nat >> (fn i => fn ctxt => fn t => |
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let |
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val prems = Logic.strip_imp_prems t; |
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in |
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if i <= length prems then nth prems (i - 1) |
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else |
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error ("Not enough premises for prem " ^ string_of_int i ^ |
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" in propositon: " ^ Syntax.string_of_term ctxt t) |
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end); |
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||
53021
d0fa3f446b9d
discontinued special treatment of \<^isub> and \<^isup> in rendering or editor front-end;
wenzelm
parents:
50638
diff
changeset
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fun sub_symbols (d :: s :: ss) = |
41685
e29ea98a76ce
term style 'isub': ad-hoc subscripting of variables that end with digits (x1, x23, ...)
krauss
parents:
36950
diff
changeset
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if Symbol.is_ascii_digit d andalso not (String.isPrefix ("\\<^") s) |
53021
d0fa3f446b9d
discontinued special treatment of \<^isub> and \<^isup> in rendering or editor front-end;
wenzelm
parents:
50638
diff
changeset
|
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then d :: "\\<^sub>" :: sub_symbols (s :: ss) |
41685
e29ea98a76ce
term style 'isub': ad-hoc subscripting of variables that end with digits (x1, x23, ...)
krauss
parents:
36950
diff
changeset
|
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else d :: s :: ss |
53021
d0fa3f446b9d
discontinued special treatment of \<^isub> and \<^isup> in rendering or editor front-end;
wenzelm
parents:
50638
diff
changeset
|
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| sub_symbols cs = cs; |
41685
e29ea98a76ce
term style 'isub': ad-hoc subscripting of variables that end with digits (x1, x23, ...)
krauss
parents:
36950
diff
changeset
|
75 |
|
53021
d0fa3f446b9d
discontinued special treatment of \<^isub> and \<^isup> in rendering or editor front-end;
wenzelm
parents:
50638
diff
changeset
|
76 |
val sub_name = implode o rev o sub_symbols o rev o Symbol.explode; |
41685
e29ea98a76ce
term style 'isub': ad-hoc subscripting of variables that end with digits (x1, x23, ...)
krauss
parents:
36950
diff
changeset
|
77 |
|
53021
d0fa3f446b9d
discontinued special treatment of \<^isub> and \<^isup> in rendering or editor front-end;
wenzelm
parents:
50638
diff
changeset
|
78 |
fun sub_term (Free (n, T)) = Free (sub_name n, T) |
d0fa3f446b9d
discontinued special treatment of \<^isub> and \<^isup> in rendering or editor front-end;
wenzelm
parents:
50638
diff
changeset
|
79 |
| sub_term (Var ((n, idx), T)) = |
d0fa3f446b9d
discontinued special treatment of \<^isub> and \<^isup> in rendering or editor front-end;
wenzelm
parents:
50638
diff
changeset
|
80 |
if idx <> 0 then Var ((sub_name (n ^ string_of_int idx), 0), T) |
d0fa3f446b9d
discontinued special treatment of \<^isub> and \<^isup> in rendering or editor front-end;
wenzelm
parents:
50638
diff
changeset
|
81 |
else Var ((sub_name n, 0), T) |
d0fa3f446b9d
discontinued special treatment of \<^isub> and \<^isup> in rendering or editor front-end;
wenzelm
parents:
50638
diff
changeset
|
82 |
| sub_term (t $ u) = sub_term t $ sub_term u |
d0fa3f446b9d
discontinued special treatment of \<^isub> and \<^isup> in rendering or editor front-end;
wenzelm
parents:
50638
diff
changeset
|
83 |
| sub_term (Abs (n, T, b)) = Abs (sub_name n, T, sub_term b) |
d0fa3f446b9d
discontinued special treatment of \<^isub> and \<^isup> in rendering or editor front-end;
wenzelm
parents:
50638
diff
changeset
|
84 |
| sub_term t = t; |
41685
e29ea98a76ce
term style 'isub': ad-hoc subscripting of variables that end with digits (x1, x23, ...)
krauss
parents:
36950
diff
changeset
|
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val _ = Theory.setup |
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(setup (Binding.name "lhs") (style_lhs_rhs fst) #> |
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setup (Binding.name "rhs") (style_lhs_rhs snd) #> |
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setup (Binding.name "prem") style_prem #> |
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setup (Binding.name "concl") (Scan.succeed (K Logic.strip_imp_concl)) #> |
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setup (Binding.name "sub") (Scan.succeed (K sub_term))); |
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end; |