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diagnostics: no longer pretty-print rules in error messages, carets suffice

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* src/gram.c (grammar_rules_useless_report): Let -fcaret handle the
pretty-printing of the guilty rules.
(rule_print): Inline in its only use.
* tests/conflicts.at, tests/existing.at, tests/reduce.at,
* tests/regression.at: Adjust.
* NEWS: Document.
This commit is contained in:
Akim Demaille
2013-02-11 10:17:36 +01:00
parent 9a9130f26d
commit fec5f3c0cc
6 changed files with 50 additions and 80 deletions
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23
NEWS
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@@ -58,6 +58,29 @@ GNU Bison NEWS
activated by default. The old format can still be used by invoking Bison
with -fno-caret (or -fnone).
Some error messages that reproduced excerpts of the grammar are now using
the caret information only. For instance on:
%%
exp: 'a' | 'a';
Bison 2.7 reports:
in.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr]
in.y:2.12-14: warning: rule useless in parser due to conflicts: exp: 'a' [-Wother]
Now bison reports:
in.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr]
in.y:2.12-14: warning: rule useless in parser due to conflicts [-Wother]
exp: 'a' | 'a';
^^^
and "bison -fno-caret" reports:
in.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr]
in.y:2.12-14: warning: rule useless in parser due to conflicts [-Wother]
*** Enhancements of the -Werror option
The -Werror=CATEGORY option is now recognized, and will treat specified