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This allows a better control on the name to give to an evar and, in
particular, to address the issue about naming produced by "epose
proof" in one of the comment of Zimmi48 at PR #248 (see file names.v).
Incidentally updating output of Show output test (evar numbers shifted).
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git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16760 85f007b7-540e-0410-9357-904b9bb8a0f7
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InitSyntax, PrintInfos: consequence of r16467 which improved printing of sigT
Notations2: consequence of r16470 on using notations while asked to
print the body of an abbreviation
Notations: fix from r16417 was incomplete (and by the way associated
to a wrong commit message)
names: related to commit r16205 which aligned "In environment" with
the variables of the environment (maybe should it be better to still have
"In environment" printed after "Error: " but I don't know how to do
it with a forced newline).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16503 85f007b7-540e-0410-9357-904b9bb8a0f7
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error messages. The architecture of unification error handling
changed, not helped by ocaml for checking that every exceptions is
correctly caught. Report or fix if you find a regression.
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16205 85f007b7-540e-0410-9357-904b9bb8a0f7
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The optimisation done of Namegen.visibly_occur_id did not preserve
the previous behavior when pr_constr/constr_extern/detype were
called on a term with free rel variables. We backtrack on it to
go back to the 8.2 behavior.
Seized this opportunity to clarify the meaning of the at_top flag
in constrextern.ml and printer.ml and to rename it into
goal_concl_style. The badly-named at_top flag was introduced in
Coq 6.3 in 1999 to mean that when printing variables bound in the
goal, names had to avoid the names of the variables of the goal
context, so as to keep naming stable when using "intro"; in
r4458, printing improved by not avoiding names that were short
names of global definitions, e.g. "S", or "O" (except when the
at_top flag was on for compatibility reasons).
Other printing strategies could be possible in the
non-goal-concl-style mode. For instance, all bound variables
could be made distinct in a given expression, even if no clash
occur, therefore following so-called Barendregt's
convention. This could be done by setting "avoid"
to "ids_of_rel_context (rel_context env)" in extern_constr and
extern_type (and then, Namegen.visibly_occur_id could be
re-simplified again!).
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15067 85f007b7-540e-0410-9357-904b9bb8a0f7
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Hugo Herbelin
Guillaume Melquiond
ppedrot
herbelin