fix linebreak behavior for binary update modalities

tests/proofmode.ref

@@ -75,3 +75,25 @@
   --------------------------------------∗
   True
   
+1 subgoal
+  
+  PROP : sbi
+  BiFUpd0 : BiFUpd PROP
+  E : coPset.coPset
+  PPPPPPPPPPPPPPPPP, QQQQQQQQQQQQQQQQQQ : PROP
+  ============================
+  --------------------------------------∗
+  PPPPPPPPPPPPPPPPP ={E}=∗
+    QQQQQQQQQQQQQQQQQQ ∗ QQQQQQQQQQQQQQQQQQ ∗ QQQQQQQQQQQQQQQQQQ
+  
+1 subgoal
+  
+  PROP : sbi
+  BiFUpd0 : BiFUpd PROP
+  E1, E2 : coPset.coPset
+  PPPPPPPPPPPPPPPPP, QQQQQQQQQQQQQQQQQQ : PROP
+  ============================
+  --------------------------------------∗
+  PPPPPPPPPPPPPPPPP ={E1,E2}=∗
+    QQQQQQQQQQQQQQQQQQ ∗ QQQQQQQQQQQQQQQQQQ ∗ QQQQQQQQQQQQQQQQQQ
+  

tests/proofmode.v

@@ -517,6 +517,17 @@ Lemma print_long_line_anon (P_P_P_P_P_P_P_P_P_P_P_P_P_P_P_P_P_P_P_P_P_P_P_P_P :
 Proof.
   iIntros "?". Show.
 Abort.
+
+Lemma long_fupd E (PPPPPPPPPPPPPPPPP QQQQQQQQQQQQQQQQQQ : PROP) :
+  PPPPPPPPPPPPPPPPP ={E}=∗ QQQQQQQQQQQQQQQQQQ ∗ QQQQQQQQQQQQQQQQQQ ∗ QQQQQQQQQQQQQQQQQQ.
+Proof.
+  iStartProof. Show.
+Abort.
+Lemma long_fupd_maskchanging E1 E2 (PPPPPPPPPPPPPPPPP QQQQQQQQQQQQQQQQQQ : PROP) :
+  PPPPPPPPPPPPPPPPP ={E1,E2}=∗ QQQQQQQQQQQQQQQQQQ ∗ QQQQQQQQQQQQQQQQQQ ∗ QQQQQQQQQQQQQQQQQQ.
+Proof.
+  iStartProof. Show.
+Abort.
 End linebreaks.
 
 End printing_tests.

theories/bi/notation.v

@@ -50,34 +50,35 @@ Reserved Notation "'<subj>' P" (at level 20, right associativity).
 
 (** Update modalities *)
 Reserved Notation "|==> Q" (at level 99, Q at level 200, format "|==>  Q").
-Reserved Notation "P ==∗ Q" (at level 99, Q at level 200, format "P  ==∗  Q").
+Reserved Notation "P ==∗ Q"
+  (at level 99, Q at level 200, format "'[hv  ' P  ==∗  '/' Q ']'").
 
 Reserved Notation "|={ E1 , E2 }=> Q"
   (at level 99, E1, E2 at level 50, Q at level 200,
    format "|={ E1 , E2 }=>  Q").
 Reserved Notation "P ={ E1 , E2 }=∗ Q"
   (at level 99, E1,E2 at level 50, Q at level 200,
-   format "P  ={ E1 , E2 }=∗  Q").
+   format "'[hv  ' P  ={ E1 , E2 }=∗  '/' Q ']'").
 
 Reserved Notation "|={ E }=> Q"
   (at level 99, E at level 50, Q at level 200,
    format "|={ E }=>  Q").
 Reserved Notation "P ={ E }=∗ Q"
   (at level 99, E at level 50, Q at level 200,
-   format "P  ={ E }=∗  Q").
+   format "'[hv  ' P  ={ E }=∗  '/' Q ']'").
 
 Reserved Notation "|={ E1 , E2 }▷=> Q"
   (at level 99, E1, E2 at level 50, Q at level 200,
    format "|={ E1 , E2 }▷=>  Q").
 Reserved Notation "P ={ E1 , E2 }▷=∗ Q"
   (at level 99, E1, E2 at level 50, Q at level 200,
-   format "P  ={ E1 , E2 }▷=∗  Q").
+   format "'[hv  ' P  ={ E1 , E2 }▷=∗  '/' Q ']'").
 Reserved Notation "|={ E }▷=> Q"
   (at level 99, E at level 50, Q at level 200,
    format "|={ E }▷=>  Q").
 Reserved Notation "P ={ E }▷=∗ Q"
   (at level 99, E at level 50, Q at level 200,
-   format "P  ={ E }▷=∗  Q").
+   format "'[hv  ' P  ={ E }▷=∗  '/' Q ']'").
 
 (** Big Ops *)
 Reserved Notation "'[∗' 'list]' k ↦ x ∈ l , P"