| Commit message (Collapse) | Author | Age |
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by commit bf0185694.
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The main change is that selection of subterm is made similar whether
the given term is fully applied or not.
- The selection of subterm now works as follows depending on whether
the "at" is given, of whether the subterm is fully applied or not,
and whether there are incompatible subterms matching the pattern. In
particular, we have:
"at" given
| subterm fully applied
| | incompatible subterms
| | |
Y Y - it works like in 8.4
Y N - this was broken in 8.4 ("at" was ineffective and it was finding
all subterms syntactically equal to the first one which matches)
N Y Y it now finds all subterms like the first one which matches
while in 8.4 it used to fail (I hope it is not a too risky in-draft
for a semantics we would regret...) (e.g. "destruct (S _)" on
goal "S x = S y + S x" now selects the two occurrences of "S x"
while it was failing before)
N Y N it works like in 8.4
N N - it works like in 8.4, selecting all subterms like the
first one which matches
- Note that the "historical" semantics, when looking for a subterm, to
select all subterms that syntactically match the first subterm to
match the pattern (looking from left to right) is now internally called
"like first".
- Selection of subterms can now find the type by pattern-matching (useful e.g.
for "induction (nat_rect _ _ _ _)")
- A version of Unification.w_unify w/o any conversion is used for
finding the subterm: it could be easily replaced by an other
matching algorithm.
In particular, "destruct H" now works on a goal such as "H:True -> x<=y |- P y".
Secondary change is in the interpretation of terms with existential
variables:
- When several arguments are given, interpretation is delayed at the
time of execution
- Because we aim at eventually accepting "edestruct c" with unresolved
holes in c, we need the sigma obtained from c to be an extension of
the sigma of the tactics, while before, we just type-checked c
independently of the sigma of the tactic
- Finishing the resolution of evars (using type classes, candidates,
pending conversion problems) is made slightly cleaner: it now takes
three states: a term is evaluated in state sigma, leading to state
sigma' >= sigma, with evars finally solved in state sigma'' >=
sigma'; we solve evars in the diff of sigma' and sigma and report
the solution in sigma''
- We however renounce to give now a success semantics to "edestruct c"
when "c" has unresolved holes, waiting instead for a decision on
what to do in the case of a similar eapply (see mail to coqdev).
An auxiliary change is that an "in" clause can be attached to each component
of a "destruct t, u, v", etc.
Incidentally, make_abstraction does not do evar resolution itself any longer.
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Since the new proof engine, Hiddentac has been essentially trivial.
Here is what happened to the functions defined there
- Aliases, or tactics that were trivial to inline were systematically inlined
- Tactics used only in tacinterp have been moved to tacinterp
- Other tactics have been moved to a new module Tactics.Simple.
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15875 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15874 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15872 85f007b7-540e-0410-9357-904b9bb8a0f7
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This instance of gen_tactic_expr was used only to decorate
tactics via Refiner.abstract_tactics and alii, but these
expressions are now ignored by the new proof-engine (no "info"...).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15865 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15844 85f007b7-540e-0410-9357-904b9bb8a0f7
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compiler warnings).
I was afraid that such a brutal refactoring breaks some obscure
invariant about linking order and side-effects but the standard
library still compiles.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15800 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15715 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15567 85f007b7-540e-0410-9357-904b9bb8a0f7
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The ugly syntax "destruct x as [ ]_eqn:H" is replaced by:
destruct x eqn:H
destruct x as [ ] eqn:H
Some with induction. Of course, the pattern behind "as" is arbitrary.
For an anonymous version, H could be replaced by ?. The old syntax
with "_eqn" still works for the moment, by triggers a warning.
For making this new syntax work, we had to change the seldom-used
"induction x y z using foo" into "induction x, y, z using foo".
Now, only one "using" can be used per command instead of one per
comma-separated group earlier, but I doubt this will bother anyone.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15566 85f007b7-540e-0410-9357-904b9bb8a0f7
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were closed (i.e. the only remaining ones are those of printing/parsing).
Meanwhile, a simplified interface is provided in loc.mli.
This also permits to put Pp in Clib, because it does not depend on
CAMLP4/5 anymore.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15475 85f007b7-540e-0410-9357-904b9bb8a0f7
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NB: former Tacexpr.no_move is now Tacexpr.MoveLast
(when introducing, intro with no move is intro as last)
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15373 85f007b7-540e-0410-9357-904b9bb8a0f7
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Corresponding operations in locusops.ml and miscops.ml
The type of occurrences is now a clear algebraic one instead of
a bool*list hard to understand.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15372 85f007b7-540e-0410-9357-904b9bb8a0f7
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Util only depends on Ocaml stdlib and Utf8 tables.
Generic pretty printing and loc functions are in Pp.
Generic errors are in Errors.
+ Training white-spaces, useless open, prlist copies random erasure.
Too many "open Errors" on the contrary.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15020 85f007b7-540e-0410-9357-904b9bb8a0f7
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tactic notations and ltac definitions (see bug report #2496).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14606 85f007b7-540e-0410-9357-904b9bb8a0f7
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Tactics set/remember and destruct/induction take benefit of it.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14499 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13744 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13323 85f007b7-540e-0410-9357-904b9bb8a0f7
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swap in the evar flags and the isrec flag. (e.g. "induction" was
printed "edestruct").
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13124 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Many of them were broken, some of them after Pierre B's rework
of mli for ocamldoc, but not only (many bad annotation, many files
with no svn property about Id, etc)
- Useless for those of us that work with git-svn (and a fortiori
in a forthcoming git-only setting)
- Even in svn, they seem to be of little interest
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12972 85f007b7-540e-0410-9357-904b9bb8a0f7
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ML names
(late consequences of commit r12603)
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12934 85f007b7-540e-0410-9357-904b9bb8a0f7
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In trunk the different possible combinations of "at" and "in" with
occurrences are taken into account.
In 8.2 branch, it remains fragile (syntaxes that were accepted remain
accepted and a message warns if the occurrences coming after the
"with" are not taken into account).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12614 85f007b7-540e-0410-9357-904b9bb8a0f7
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We renounced to distribute evars to constr and bindings and to let
tactics do the merge. There are now two disciplines:
- the general case is that the holes in tactic arguments are pushed to
the general sigma of the goal so that tactics have no such low-level
tclEVARS, Evd.merge, or check_evars to do:
- what takes tclEVARS and check_evars in charge is now a new
tactical of name tclWITHHOLES (this tactical has a flag to support
tactics in either the "e"- mode and the non "e"- mode);
- the merge of goal evars and holes is now done generically at
interpretation time (in tacinterp) and as a side-effect it also
anticipates the possibility to refer to evars of the goal in the
arguments;
- with this approach, we don't need such constr/open_constr or
bindings/ebindings variants and we can get rid of all ugly
inj_open-style coercions;
- some tactics however needs to have the exact subset of holes known;
this is the case e.g. of "rewrite !c" which morally reevaluates c at
each new rewriting step; this kind of tactics still receive a
specific sigma around their arguments and they have to merge evars
and call tclWITHHOLES by themselves.
Changes so that each specific tactics can take benefit of this generic
support remain to be done.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12603 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12348 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12337 85f007b7-540e-0410-9357-904b9bb8a0f7
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in a chain of apply or apply-in.
- Improved comments on the notions of permutation used in the library (still
the equality relation in file Permutation.v misses the property of being
effectively an equivalence relation, hence missing expected properties of
this notion of permutation).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12261 85f007b7-540e-0410-9357-904b9bb8a0f7
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Added support for "injection" and "discriminate" on JMeq.
Seized the opportunity to update coqlib.ml and to rely more on it for
finding the equality lemmas.
Fixed typos in coqcompat.ml.
Propagated symmetry convert_concl fix to transitivity (see 11521).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12259 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12257 85f007b7-540e-0410-9357-904b9bb8a0f7
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instead of the index required by the user; extended FixRule and
Cofix accordingly).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12168 85f007b7-540e-0410-9357-904b9bb8a0f7
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the interpretation mechanism of ltac variables)
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12100 85f007b7-540e-0410-9357-904b9bb8a0f7
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now works correctly, "unfold foo at 4 in H at 3" now fails correctly,
etc.). The terminology for clauses (though I don't find the term
"clause" very intuitive after all) is mostly preserved except for
"simple_clause" which becomes a light form of "clause" instead of
being an atom of clause (what played the role of "simple_clause" is
now called "goal_location" - better names are welcome).
Main changes are in tacticals.ml and tactics.ml.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11981 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Added "simple apply in" (cf wish 1917) + conversion and descent
under conjunction + contraction of useless beta-redex in "apply in"
+ support for open terms.
- Did not solve the "problem" that "apply in" generates a let-in which
is type-checked using a kernel conversion in the opposite side of what
the proof indicated (hence leading to a potential unexpected penalty
at Qed time).
- When applyng a sequence of lemmas, it would have been nice to allow
temporary evars as intermediate steps but this was too long to implement.
Smoother API in tactics.mli for assert_by/assert_as/pose_proof.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11662 85f007b7-540e-0410-9357-904b9bb8a0f7
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instead of a completely resolved [constr] as input. The propagation of the
evars associated to the lemma is only allowed when the evar flag is on
(i.e. for [eapply]), otherwise they should be resolved by the end of the
application. Should be completely backwards compatible...
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11497 85f007b7-540e-0410-9357-904b9bb8a0f7
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when one wants a particular type. Rewrite of the unification behind
[Equations], much more robust but still buggy w.r.t. inaccessible
patterns.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11399 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Correction divers messages d'erreur
- lorsque rien à réécrire dans une hyp,
- lorsqu'une variable ltac n'est pas liée,
- correction anomalie en présence de ?id dans le "as" de induction,
- correction mauvais env dans message d'erreur de unify_0.
- Diverses extensions et améliorations
- "specialize" :
- extension au cas (fun x1 ... xn => H u1 ... un),
- renommage au même endroit.
- "assert" et "pose proof" peuvent réutiliser la même hyp comme "specialize".
- "induction"
- intro des IH toujours au sommet même si induction sur var quantifiée,
- ajout d'un hack pour la reconnaissance de schémas inductifs comme
N_ind_double mais il reste du boulot pour reconnaître (et/ou
réordonner) les composantes d'un schéma dont les hypothèses ne sont pas
dans l'ordre standard,
- vérification de longueur et éventuelle complétion des
intropatterns dans le cas de sous-patterns destructifs dans induction
(par exemple "destruct n as [|[|]]" sur "forall n, n=0" ne mettait pas
le n dans le contexte),
- localisation des erreurs d'intropattern,
- ajout d'un pattern optionnel après "as" pour forcer une égalité et la
nommer (*).
- "apply" accepte plusieurs arguments séparés par des virgules (*).
- Plus de robustesse pour clear en présence d'evars.
- Amélioration affichage TacFun dans Print Ltac.
- Vieux pb espace en trop en tête d'affichage des tactiques EXTEND résolu
(incidemment, ça remodifie une nouvelle fois le test output Fixpoint.v !).
- Fusion VTactic/VFun dans l'espoir.
- Mise en place d'un système de trace de la pile des appels Ltac (tout en
préservant certains aspects de la récursivité terminale - cf bug #468).
- Tactiques primitives
- ajout de "move before" dans les tactiques primitives et ajout des
syntaxes move before et move dependent au niveau utilisateur (*),
- internal_cut peuvent faire du remplacement de nom d'hypothèse existant,
- suppression de Intro_replacing et du code sous-traitant
- Nettoyage
- Suppression cible et fichiers minicoq non portés depuis longtemps.
(*) Extensions de syntaxe qu'il pourrait être opportun de discuter
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11300 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Changement au passage de la convention "at -n1 ... -n2" en
"at - n1 ... n2" qui me paraît plus clair à partir du moment où on peut
pas mélanger des positifs et des négatifs.
- Au passage:
- simplification de gclause avec fusion de onconcl et concl_occs,
- généralisation de l'utilisation de la désignation des occurrences par la
négative aux cas de setoid_rewrite, clrewrite et rewrite at,
- correction d'un bug de "rewrite in at" qui utilisait le at de la
conclusion dans les hyps.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11094 85f007b7-540e-0410-9357-904b9bb8a0f7
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- Ajout clause "in" à "remember" (et passage du code en ML).
- Ajout clause "in" à "induction"/"destruct" qui, en ce cas, ajoute
aussi une égalité pour se souvenir du terme sur lequel l'induction
ou l'analyse de cas s'applique.
- Ajout "pose t as id" en standard (Matthieu: j'ai enlevé celui de
Programs qui avait la sémantique de "pose proof" tandis que le nouveau
a la même sémantique que "pose (id:=t)").
- Un peu de réorganisation, uniformisation de noms dans Arith, et
ajout EqNat dans Arith.
- Documentation tactiques et notations de tactiques.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11072 85f007b7-540e-0410-9357-904b9bb8a0f7
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des théorèmes prouvés par récursion ou corécursion mutuelle.
Correction au passage du parsing et du printing des tactiques
fix/cofix et documentation de ces tactiques.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10850 85f007b7-540e-0410-9357-904b9bb8a0f7
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- vérification de la cohérence des ident pour éviter une option -R
avec des noms non parsables (la vérification est faite dans
id_of_string ce qui est très exigeant; faudrait-il une solution plus
souple ?)
- correction message d'erreur inapproprié dans le apply qui descend dans les
conjonctions
- nettoyage autour de l'échec en présence de métas dans le prim_refiner
- nouveau message d'erreur quand des variables ne peuvent être instanciées
- quelques simplifications et davantage de robustesse dans inversion
- factorisation du code de constructor and co avec celui de econstructor and co
Documentation des tactiques
- edestruct/einduction/ecase/eelim et nouveautés apply
- nouvelle sémantique des intropatterns disjonctifs et documentation des
pattern -> et <-
- relecture de certaines parties du chapitre tactique
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10785 85f007b7-540e-0410-9357-904b9bb8a0f7
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10738 85f007b7-540e-0410-9357-904b9bb8a0f7
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* "f_equal" is now a tactic in ML (placed alongside congruence since
it uses it). Normally, it should be completely compatible with the
former Ltac version, except that it doesn't suffer anymore from the
"up to 5 args" earlier limitation.
* "revert" also becomes an ML tactic. This doesn't bring any real
improvement, just some more uniformity with clear and generalize.
* The experimental "narrow" tactic is removed from Tactics.v, and
replaced by an evolution of the old & undocumented "specialize"
ML tactic:
- when specialize is called on an hyp H, the specialization is
now done in place on H. For instance "specialize (H t u v)"
removes the three leading forall of H and intantiates them by
t u and v.
- otherwise specialize still works as before (i.e. as a kind of
generalize).
See the RefMan and test-suite/accept/specialize.v for more infos.
Btw, specialize can still accept an optional number for specifying
how many premises to instantiate. This number should normally
be useless now (some autodetection mecanism added). Hence this
feature is left undocumented. For the happy few still using
specialize in the old manner, beware of the slight incompatibities...
* finally, "contradict" is left as Ltac in Tactics.v, but it has
now a better shape (accepts unfolded nots and/or things in Type),
and also some documentation in the RefMan
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10637 85f007b7-540e-0410-9357-904b9bb8a0f7
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lib/option.ml(i) . J'en profite pour rajouter des primitives de lifting
des fonctions (à un ou deux arguments tous ou partie de type option).
Il reste quelques opérations dans Util à propos desquelles je ne suis
pas trop sûr, ou simplement que j'ai oublié, mais qui attendront demain
car il est tard (comme some_in qui devrait devenir Option.make je
suppose) . Elles s'expriment souvent facilement en fonction des
autres, par exemple "option_compare x y" est égal à "Option.lift2 compare x y"
. Le option_cons devrait faire son chemin dans le module parce qu'il est
assez primitif et qu'il n'y a pas de fonction "cons" dans OCaml.
J'en ai profité aussi pour remplacer les trop nombreux "failwith" par
des erreurs locales au module, donc plus robustes.
J'ai trouvé aussi une fonction qui était définie deux fois, et une
définie dans un module particulier.
Mon seul bémol (mais facile à traiter) c'est la proximité entre le
nom de module Option et l'ancien Options. J'ai pas de meilleure idée de
nom à l'heure qu'il est, ni pour l'un, ni pour l'autre.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10346 85f007b7-540e-0410-9357-904b9bb8a0f7
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Ajout de l'option with à (e)destruct et (e)induction.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@10169 85f007b7-540e-0410-9357-904b9bb8a0f7
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rename A into B, C into D, E into F.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9952 85f007b7-540e-0410-9357-904b9bb8a0f7
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apply afin de reculer au plus tard les décisions irréversibles et en
particulier de pouvoir typer les with-bindings modulo coercions :
- l'unification des types des métas données en with-bindings est
retardé à après l'unification (unify_0) de telle sorte que les
instances trouvées par unify_0 soient prioritaires et que la
décision d'insérer éventuellement des coercions autour des valeurs
données en with-bindings se fasse au dernier moment;
- toujours pour permettre d'insérer ultimement des coercions,
l'instantiation des with-bindings ne se fait plus
l'appel unify_0 (cf clenv_unique_resolver);
- pour permettre ce retardement sans limiter le test de conversion
que unify_0 fait sur les termes clos, on transmet à unify_0 les
métas données en with-bindings (ainsi l'instantiation de ces métas
peut être faite dynamiquement au moment du test de clôture);
- parce que les métas données en with-bindings qui sont en position
de rédex (cas d'un "apply f_equal with (f:=fun ...)" peuvent
simplifier le problème d'unification (et elles ne sont pas de
toutes façons pas réinférables au premier ordre), on continue à
les substituer avant l'appel à unify_0 (cf meta_reducible_instance);
- pour l'unification du second-ordre, on continue d'instancier les
with-bindings et d'unifier les types des with-bindings avant
unification;
- reste à régler un problème de compatibilité lorsque le résultat de
l'unification des types des with-bindings est utilisé pour rendre
un terme clos et pour permettre à unify_0 d'utiliser la conversion.
+ meilleure compatibilité de apply, split, left, right pour le code
qui l'utilise avec des bindings clos
+ nettoyage et uniformisation des clenv_match_args, clenv_missing, et assimilés
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9850 85f007b7-540e-0410-9357-904b9bb8a0f7
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de résoudre des buts comme celui-ci :
Record nat_retract : Type :=
{f1 : nat -> nat; f2 : nat -> nat; f1_o_f2 : forall x, f1 (f2 x) = x}.
Goal nat_retract.
exists (fun x => x) (fun x => x).
- Nouvelle tentative d'utilisation des types des metas/evars pour
inférer de nouvelles instances de metas/evars; permet par exemple
d'utiliser f_equal sans option with, mais aussi, avec la modif
précédente, de résoudre des buts tels que
Goal exists f:bool->Prop, f true = True.
exists (fun x => True).
[Les expériences passées avaient montré qu'en prenant en compte les
types dans l'unification, on peut unifier trop tôt une evars à une
mauvaise sorte; à défaut de mécanisme de prise en compte des problème
d'unification avec sous-typage, on s'est interdit ici d'unifier des
types qui sont des arités.]
- Tout les constr de tactic_expr deviennent des open_constr (même si seul
with_bindings les accepte au final... c'est pas l'idéal).
- Renommage env -> evd et templenv -> env dans clausenv.
- Renommage closed_generic_argument -> typed_generic_argument.
- Renommage closed_abstract_argument_type -> typed_abstract_argument_type.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9842 85f007b7-540e-0410-9357-904b9bb8a0f7
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Fusion des syntaxes de "apply" et "eapply". Ajout de "eapply in",
"erewrite" et "erewrite in". Correction au passage des bugs #1461 et
#1522).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9802 85f007b7-540e-0410-9357-904b9bb8a0f7
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- essai de suppression des dependances debiles. (echec)
- Application des patch debian.
Pour ring et field :
- introduciton de la function de sign et de puissance.
- Correction de certains bug.
- supression de ring_replace ....
Pour exact_no_check :
- ajout de la tactic : vm_cast_no_check (t)
qui remplace "exact_no_check (t<: type of Goal)"
(cette version forcais l'evaluation du cast dans le
pretypage).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9427 85f007b7-540e-0410-9357-904b9bb8a0f7
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