diff options
| author |  Hugo Herbelin <Hugo.Herbelin@inria.fr> | 2017-07-24 20:04:46 +0200 |
|---|---|---|
| committer | Hugo Herbelin <Hugo.Herbelin@inria.fr> | 2017-08-29 05:18:49 +0200 |
| commit | f442efebd8354b233827e4991a80d27082c772e1 (patch) | |
| tree | dfdc1a38defaa4f2e7ca413aaca883f5c2b728fa /theories | |
| parent | 7b1ff0c70a3ba9cd3cfa5aa6723f8f8a2b6e5396 (diff) | |
A little reorganization of notations + a fix to #5608.
- Formerly, notations such as "{ A } + { B }" were typically split
into "{ _ }" and "_ + _". We keep the split only for parsing, which
is where it is really needed, but not anymore for interpretation,
nor printing.
- As a consequence, one notation string can give rise to several
grammar entries, but still only one printing entry.
- As another consequence, "{ A } + { B }" and "A + { B }" must be
reserved to be used, which is after all the natural expectation,
even if the sublevels are constrained.
- We also now keep the information "is ident", "is binder" in the
"key" characterizing the level of a notation.
Diffstat (limited to 'theories')
| -rw-r--r-- | theories/Init/Notations.v | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/theories/Init/Notations.v b/theories/Init/Notations.v index e67ae6a92..5e8d2faa5 100644 --- a/theories/Init/Notations.v +++ b/theories/Init/Notations.v @@ -66,6 +66,9 @@ Reserved Notation "{ x }" (at level 0, x at level 99). (** Notations for sigma-types or subsets *) +Reserved Notation "{ A } + { B }" (at level 50, left associativity). +Reserved Notation "A + { B }" (at level 50, left associativity). + Reserved Notation "{ x | P }" (at level 0, x at level 99). Reserved Notation "{ x | P & Q }" (at level 0, x at level 99). |