Notation: a new annotation "compat 8.x" extending "only parsing"

 Suppose we declare : Notation foo := bar (compat "8.3").
 Then each time foo is used in a script :

 - By default nothing particular happens (for the moment)

 - But we could get a warning explaining that
   "foo is bar since coq > 8.3".
   For that, either use the command-line option -verb-compat-notations
   or the interactive command "Set Verbose Compat Notations".

 - There is also a strict mode, where foo is forbidden : the previous
   warning is now an error.
   For that, either use the command-line option -no-compat-notations
   or the interactive command "Unset Compat Notations".

 When Coq is launched in compatibility mode (via -compat 8.x),
 using a notation tagged "8.x" will never trigger a warning or error.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15514 85f007b7-540e-0410-9357-904b9bb8a0f7

1 files changed, 30 insertions, 30 deletions

diff --git a/theories/PArith/Pnat.v b/theories/PArith/Pnat.v
index f9df70bd3..0fa6972b7 100644
--- a/theories/PArith/Pnat.v
+++ b/theories/PArith/Pnat.v
@@ -378,36 +378,36 @@ End SuccNat2Pos.
 
 (** For compatibility, old names and old-style lemmas *)
 
-Notation Psucc_S := Pos2Nat.inj_succ (only parsing).
-Notation Pplus_plus := Pos2Nat.inj_add (only parsing).
-Notation Pmult_mult := Pos2Nat.inj_mul (only parsing).
-Notation Pcompare_nat_compare := Pos2Nat.inj_compare (only parsing).
-Notation nat_of_P_xH := Pos2Nat.inj_1 (only parsing).
-Notation nat_of_P_xO := Pos2Nat.inj_xO (only parsing).
-Notation nat_of_P_xI := Pos2Nat.inj_xI (only parsing).
-Notation nat_of_P_is_S := Pos2Nat.is_succ (only parsing).
-Notation nat_of_P_pos := Pos2Nat.is_pos (only parsing).
-Notation nat_of_P_inj_iff := Pos2Nat.inj_iff (only parsing).
-Notation nat_of_P_inj := Pos2Nat.inj (only parsing).
-Notation Plt_lt := Pos2Nat.inj_lt (only parsing).
-Notation Pgt_gt := Pos2Nat.inj_gt (only parsing).
-Notation Ple_le := Pos2Nat.inj_le (only parsing).
-Notation Pge_ge := Pos2Nat.inj_ge (only parsing).
-Notation Pminus_minus := Pos2Nat.inj_sub (only parsing).
-Notation iter_nat_of_P := @Pos2Nat.inj_iter (only parsing).
-
-Notation nat_of_P_of_succ_nat := SuccNat2Pos.id_succ (only parsing).
-Notation P_of_succ_nat_of_P := Pos2SuccNat.id_succ (only parsing).
-
-Notation nat_of_P_succ_morphism := Pos2Nat.inj_succ (only parsing).
-Notation nat_of_P_plus_morphism := Pos2Nat.inj_add (only parsing).
-Notation nat_of_P_mult_morphism := Pos2Nat.inj_mul (only parsing).
-Notation nat_of_P_compare_morphism := Pos2Nat.inj_compare (only parsing).
-Notation lt_O_nat_of_P := Pos2Nat.is_pos (only parsing).
-Notation ZL4 := Pos2Nat.is_succ (only parsing).
-Notation nat_of_P_o_P_of_succ_nat_eq_succ := SuccNat2Pos.id_succ (only parsing).
-Notation P_of_succ_nat_o_nat_of_P_eq_succ := Pos2SuccNat.id_succ (only parsing).
-Notation pred_o_P_of_succ_nat_o_nat_of_P_eq_id := Pos2SuccNat.pred_id (only parsing).
+Notation Psucc_S := Pos2Nat.inj_succ (compat "8.3").
+Notation Pplus_plus := Pos2Nat.inj_add (compat "8.3").
+Notation Pmult_mult := Pos2Nat.inj_mul (compat "8.3").
+Notation Pcompare_nat_compare := Pos2Nat.inj_compare (compat "8.3").
+Notation nat_of_P_xH := Pos2Nat.inj_1 (compat "8.3").
+Notation nat_of_P_xO := Pos2Nat.inj_xO (compat "8.3").
+Notation nat_of_P_xI := Pos2Nat.inj_xI (compat "8.3").
+Notation nat_of_P_is_S := Pos2Nat.is_succ (compat "8.3").
+Notation nat_of_P_pos := Pos2Nat.is_pos (compat "8.3").
+Notation nat_of_P_inj_iff := Pos2Nat.inj_iff (compat "8.3").
+Notation nat_of_P_inj := Pos2Nat.inj (compat "8.3").
+Notation Plt_lt := Pos2Nat.inj_lt (compat "8.3").
+Notation Pgt_gt := Pos2Nat.inj_gt (compat "8.3").
+Notation Ple_le := Pos2Nat.inj_le (compat "8.3").
+Notation Pge_ge := Pos2Nat.inj_ge (compat "8.3").
+Notation Pminus_minus := Pos2Nat.inj_sub (compat "8.3").
+Notation iter_nat_of_P := @Pos2Nat.inj_iter (compat "8.3").
+
+Notation nat_of_P_of_succ_nat := SuccNat2Pos.id_succ (compat "8.3").
+Notation P_of_succ_nat_of_P := Pos2SuccNat.id_succ (compat "8.3").
+
+Notation nat_of_P_succ_morphism := Pos2Nat.inj_succ (compat "8.3").
+Notation nat_of_P_plus_morphism := Pos2Nat.inj_add (compat "8.3").
+Notation nat_of_P_mult_morphism := Pos2Nat.inj_mul (compat "8.3").
+Notation nat_of_P_compare_morphism := Pos2Nat.inj_compare (compat "8.3").
+Notation lt_O_nat_of_P := Pos2Nat.is_pos (compat "8.3").
+Notation ZL4 := Pos2Nat.is_succ (compat "8.3").
+Notation nat_of_P_o_P_of_succ_nat_eq_succ := SuccNat2Pos.id_succ (compat "8.3").
+Notation P_of_succ_nat_o_nat_of_P_eq_succ := Pos2SuccNat.id_succ (compat "8.3").
+Notation pred_o_P_of_succ_nat_o_nat_of_P_eq_id := Pos2SuccNat.pred_id (compat "8.3").
 
 Lemma nat_of_P_minus_morphism p q :
  Pcompare p q Eq = Gt -> Pos.to_nat (p - q) = Pos.to_nat p - Pos.to_nat q.