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%expext was not functioning at all.

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* src/conflicts.c (expected_conflicts): Set to -1.
(conflict_report): Use ngettext.
(conflicts_print): Check %expect and make its violation an error.
* doc/bison.texinfo (Expect Decl): Adjust.
* configure.in (AM_GNU_GETTEXT): Ask for ngettext.
* tests/regression.at (%expect not enough, %expect right)
(%expect too much): New.
This commit is contained in:
Akim Demaille
2001-11-12 09:19:48 +00:00
parent fb28699f95
commit badfc69c26
20 changed files with 512 additions and 177 deletions
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17
doc/bison.info-3
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@@ -623,19 +623,20 @@ Suppressing Conflict Warnings
Bison normally warns if there are any conflicts in the grammar
(*note Shift/Reduce Conflicts: Shift/Reduce.), but most real grammars
have harmless shift/reduce conflicts which are resolved in a
predictable way and would be difficult to eliminate. It is desirable
to suppress the warning about these conflicts unless the number of
conflicts changes. You can do this with the `%expect' declaration.
have harmless shift/reduce conflicts which are resolved in a predictable
way and would be difficult to eliminate. It is desirable to suppress
the warning about these conflicts unless the number of conflicts
changes. You can do this with the `%expect' declaration.
The declaration looks like this:
%expect N
Here N is a decimal integer. The declaration says there should be no
warning if there are N shift/reduce conflicts and no reduce/reduce
conflicts. The usual warning is given if there are either more or fewer
conflicts, or if there are any reduce/reduce conflicts.
Here N is a decimal integer. The declaration says there should be
no warning if there are N shift/reduce conflicts and no reduce/reduce
conflicts. An error, instead of the usual warning, is given if there
are either more or fewer conflicts, or if there are any reduce/reduce
conflicts.
In general, using `%expect' involves these steps: