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List accepted values for a %define enum variable with an invalid value.

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Suggested by Akim Demaille at
<http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00082.html>.
* data/bison.m4 (_b4_percent_define_check_values): Implement.
* src/muscle_tab.c (muscle_percent_define_check_values): Implement.
* tests/input.at (%define lr.default_reductions invalid values): Merge
into...
(%define enum variables): ... here, and update output.
This commit is contained in:
Joel E. Denny
2009-04-24 01:42:58 -04:00
parent 620b572773
commit 25029e164a
4 changed files with 53 additions and 35 deletions
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11
ChangeLog
View File

@@ -1,3 +1,14 @@
2009-04-24 Joel E. Denny <jdenny@ces.clemson.edu>
List accepted values for a %define enum variable with an invalid value.
Suggested by Akim Demaille at
<http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00082.html>.
* data/bison.m4 (_b4_percent_define_check_values): Implement.
* src/muscle_tab.c (muscle_percent_define_check_values): Implement.
* tests/input.at (%define lr.default_reductions invalid values): Merge
into...
(%define enum variables): ... here, and update output.
2009-04-23 Joel E. Denny <jdenny@ces.clemson.edu>
Rename "default rule" to "default reduction".

6
data/bison.m4
View File

@@ -499,7 +499,11 @@ m4_define([_b4_percent_define_check_values],
[b4_complain_at(b4_percent_define_get_loc([$1]),
[[invalid value for %%define variable `%s': `%s']],
[$1],
m4_dquote(m4_indir([b4_percent_define(]$1[)])))])dnl
m4_dquote(m4_indir([b4_percent_define(]$1[)])))
m4_foreach([b4_value], m4_dquote(m4_shift($@)),
[b4_complain_at(b4_percent_define_get_loc([$1]),
[[accepted value: `%s']],
m4_dquote(b4_value))])])dnl
m4_popdef([b4_good_value])],
[b4_fatal([[undefined %%define variable `%s' passed to b4_percent_define_check_values]], [$1])])])

35
src/muscle_tab.c
View File

@@ -553,35 +553,40 @@ muscle_percent_define_check_values (char const * const *values)
{
for (; *values; ++values)
{
char const *variable = *values;
char const * const *variablep = values;
char const *name;
char *value;
MUSCLE_USER_NAME_CONVERT (name, "percent_define(", variable, ")");
MUSCLE_USER_NAME_CONVERT (name, "percent_define(", *variablep, ")");
value = muscle_string_decode (name);
if (value)
{
bool valid = false;
for (++values; *values; ++values)
{
if (0 == strcmp (value, *values))
{
valid = true;
while (*values)
++values;
break;
}
break;
}
if (!*values)
{
location loc = muscle_percent_define_get_loc (*variablep);
complain_at(loc,
_("invalid value for %%define variable `%s': `%s'"),
*variablep, value);
for (values = variablep + 1; *values; ++values)
complain_at (loc, _("accepted value: `%s'"), *values);
}
else
{
while (*values)
++values;
}
if (!valid)
complain_at(muscle_percent_define_get_loc (variable),
_("invalid value for %%define variable `%s': `%s'"),
variable, value);
free (value);
}
else
fatal(_("undefined %%define variable `%s' passed to muscle_percent_define_check_values"),
variable);
fatal(_("undefined %%define variable `%s' passed to"
" muscle_percent_define_check_values"),
*variablep);
}
}

36
tests/input.at
View File

@@ -867,38 +867,36 @@ AT_BISON_CHECK([[Input.y]], [1], [],
AT_CLEANUP
## ---------------------------------------------- ##
## %define lr.default_reductions invalid values. ##
## ---------------------------------------------- ##
AT_SETUP([[%define lr.default_reductions invalid values]])
AT_DATA([[input.y]],
[[%define lr.default_reductions "bogus"
%%
start: ;
]])
AT_BISON_CHECK([[input.y]], [[1]], [[]],
[[input.y:1.9-29: invalid value for %define variable `lr.default_reductions': `bogus'
]])
AT_CLEANUP
## ------------------------ ##
## %define enum variables. ##
## ------------------------ ##
AT_SETUP([[%define enum variables]])
# Front-end.
AT_DATA([[input.y]],
[[%define lr.default_reductions "bogus"
%%
start: ;
]])
AT_BISON_CHECK([[input.y]], [[1]], [[]],
[[input.y:1.9-29: invalid value for %define variable `lr.default_reductions': `bogus'
input.y:1.9-29: accepted value: `all'
input.y:1.9-29: accepted value: `consistent'
input.y:1.9-29: accepted value: `accepting'
]])
# Back-end.
AT_DATA([[input.y]],
[[%define api.push_pull "neither"
%%
start: ;
]])
AT_BISON_CHECK([[input.y]], [1], [],
[[input.y:1.9-21: invalid value for %define variable `api.push_pull': `neither'
input.y:1.9-21: accepted value: `pull'
input.y:1.9-21: accepted value: `push'
input.y:1.9-21: accepted value: `both'
]])
AT_CLEANUP