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in cctac which does not support indices properly.
Incidentally, this should fix a failure in RelationAlgebra, where
making prod_applist more robust (e8c47b652) revealed the discriminate
bug in congruence.
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This feature allows the user to write "let x := open_constr(foo) in ..." for instance
without having to resort to tactic notations. Some changes have been introduced in
the parsing of ad-hoc argument scopes, e.g. one has to put parentheses around
constr:(...) and ltac:(...) in tactics. This breaks badly written scripts, although
it is easy to be forward-compatible by preemptively putting thoses parentheses.
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The ARGUMENT EXTEND statement was wrongly using a CompatLoc instead of a Loc,
and this was not detected by typing "thanks" to the Gram.action magic. When
using CAMLP4, this was wreaking havoc at runtime, but not when using CAMLP5,
as the locations where sharing the same representation.
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primitive projections and prop. ext. or univalence, but at least it prevents
known proofs of false (see discussion on #4588).
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This is not perfect and repeats what we do in Pcoq, but it is hard to factorize
because rules defined in Pcoq do not have the same precedence. For instance,
constr as a Tactic Notation argument is a Pcoq.Constr.constr while as a
quotation argument is a Pcoq.Constr.lconstr. We should think of a fix in the
long run, but for now it is reasonable to duplicate code.
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Fixes compilation of Coq with OCaml 4.03 beta 1.
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Amongs other things, it kind of fixes bug #4492, even though you cannot really
take advantage of the parsed data for now.
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The tactic_arg entry was essentially a hack to keep parsing constrs as tactic
arguments. We rather use tactic_top_or_arg as the true entry for tactic arguments
now.
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This was redundant with the wit_uconstr generic argument, so there was no real
point on keeping it there.
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Converting the README to MarkDown syntax.
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CQQ -> COQ
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Printing invalid UTF-8 string startled GTK too much, leading to CoqIDE dying
improperly. We now check that all strings outputed by Coq are proper UTF-8.
This is not perfect, as CoqIDE will sometimes truncate strings which contains
the null character, but at least it should not crash.
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- Making a clear distinction between expressions of the notation which
are associated to binding variables only (as in `Notation "'lam' x ,
P" := (fun x => P)" or `Notation "'exists2' x : t , p & q" := (ex2
(fun x:t => p) (fun x:t => q))') and those which are associated to
at list one subterm (e.g. `Notation "x .+1" := (S x)' but also
"Notation "{# x | P }" := (ex2 _ (fun y => x = F y) (fun x => P))'
as in #4592). The former have type NtnTypeOnlyBinder.
- Thus avoiding in particular encoding too early Anonymous as GHole
and "Name id" as "GVar id".
There is a non-trivial alpha-conversion work to do to get #4592
working. See comments in Notation_ops.add_env.
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Checking that a term was indeed a relation was made too early, as the
decomposition function recognized relations of the form "f (g .. (h x y))
with f, g unary and only h binary. We postpone this check to the very end.
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File contributed by Cédric Auger (a long time ago, sorry!)
Qarith and Qc would probably deserve many more results like this one,
and a more modern style (for instance qualified names), but this commit
is better than nothing...
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METAIDENT were idents of the form $foobar, only used in quotations.
Note that it removes two dollars in the Coq codebase! Guess I'm absolved
for the $(...) syntax.
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This was historically used together with the <:tactic< ... >> quotation to insert
foreign code as $foo, but it actually only survived in the implementation of Tauto.
With the removal of the quotation feature, this is now totally obsolete.
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It implemented the quotation logic of terms and tactics, although it was
mostly obsolete. With quotations gone, it is now useless and thus removed.
I fundamentally doubt that anyone hardly depends on this out there.
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It used to allow to represent parts of tactic AST directly in ML code. Most of
the uses were trivial, only calling a constant, except for tauto that had an
important code base written in this style. Removing this reduces the dependency
to CAMLPX and the preeminence of Ltac in ML code.
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projections in unification.ml
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unification.
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This gets rid of brittle code written in ML files through Ltac quotations, and
reduces the dependance of Coq to such a feature. This also fixes the particular
instance of bug #2800, although the underlying issue is still there.
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The glob_expr was actually always embedded as a VFun, so this patch should
not change anything semantically. The only change occurs in the plugin API
where one should use the Tacinterp.tactic_of_value function instead of
Tacinterp.eval_tactic.
Moreover, this patch allows to use tactics returning arguments from the ML
side.
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Pierre-Marie Pédrot
Hugo Herbelin
Maxime Dénès
Jason Gross
Pierre Letouzey
Matthieu Sozeau