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muscle: enforce definition syntax for keyword variables

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* src/muscle-tab.c (muscle_percent_define_get_kind)
(muscle_percent_define_check_kind): New.
(muscle_percent_define_default): Variables with a default value are
of "keyword" kind.
(muscle_percent_define_flag_if, muscle_percent_define_check_values):
Check that the variable is of keyword kind.
* data/bison.m4: Likewise, but in M4.  That is to say...
(b4_percent_define_default): Define the kind when the variable is undefined.
(b4_percent_define_check_kind): Use a better error message.
(_b4_percent_define_check_values, _b4_percent_define_check_values):
Former "enum" variables should be defined using the keyword syntax.
* doc/bison.texi: Update.
A couple of fixes.
* tests/input.at (%define keyword variables): New.
This commit is contained in:
Akim Demaille
2013-04-14 14:42:15 +02:00
parent 5fad4d4f09
commit c53b684889
4 changed files with 84 additions and 9 deletions
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10
doc/bison.texi
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@@ -5877,7 +5877,7 @@ Boolean.
@item Default Value:
@code{false}
@item History:
introduced in Bison 2.8
introduced in Bison 3.0
@end itemize
@end deffn
@c api.token.constructor
@@ -6016,7 +6016,7 @@ Use this name as semantic value.
@end itemize
@item History:
introduced in Bison 2.8. Was introduced for Java only in 2.3b as
introduced in Bison 3.0. Was introduced for Java only in 2.3b as
@code{stype}.
@end itemize
@end deffn
@@ -6048,8 +6048,8 @@ feedback will help to stabilize it.)
@item @code{most} otherwise.
@end itemize
@item History:
introduced as @code{lr.default-reduction} in 2.5, renamed as
@code{lr.default-reduction} in 2.8.
introduced as @code{lr.default-reductions} in 2.5, renamed as
@code{lr.default-reduction} in 3.0.
@end itemize
@end deffn
@@ -6066,7 +6066,7 @@ remain in the parser tables. @xref{Unreachable States}.
@item History:
introduced as @code{lr.keep_unreachable_states} in 2.3b, renamed as
@code{lr.keep-unreachable-states} in 2.5, and as
@code{lr.keep-unreachable-state} in 2.8.
@code{lr.keep-unreachable-state} in 3.0.
@end itemize
@end deffn
@c lr.keep-unreachable-state