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%define lr.type: make values lowercase IDs.

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That is, "LALR" => "lalr", "IELR" => "ielr", and
"canonical LR" => "canonical-lr".
* NEWS (2.5): Update documentation.
* doc/bison.texinfo (Decl Summary): Likewise.
* src/ielr.c (ielr): Use new values.
* src/ielr.h (ielr): Update documentation.
* src/reader.c (prepare_percent_define_front_end_variables): Use
and validate new values.
* tests/existing.at (AT_TEST_EXISTING_GRAMMAR): Update test
grammars.
* tests/reduce.at (AT_TEST_LR_TYPE): Likewise.
(cherry picked from commit 6ba9640406)
This commit is contained in:
Joel E. Denny
2009-08-28 00:57:06 -04:00
parent 4bb975e1ad
commit 3a414bbfa0
10 changed files with 44 additions and 29 deletions
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10
doc/bison.texinfo
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@@ -4956,7 +4956,7 @@ without performing any extra reductions.
@item Default Value:
@itemize
@item @code{"accepting"} if @code{lr.type} is @code{"canonical LR"}.
@item @code{"accepting"} if @code{lr.type} is @code{"canonical-lr"}.
@item @code{"all"} otherwise.
@end itemize
@end itemize
@@ -5020,7 +5020,7 @@ More user feedback will help to stabilize it.)
@item Accepted Values:
@itemize
@item @code{"LALR"}.
@item @code{"lalr"}.
While Bison generates @acronym{LALR} parser tables by default for
historical reasons, @acronym{IELR} or canonical @acronym{LR} is almost
always preferable for deterministic parsers.
@@ -5049,7 +5049,7 @@ investigate such problems while ignoring the more subtle differences
from @acronym{IELR} and canonical @acronym{LR}.
@end itemize
@item @code{"IELR"}.
@item @code{"ielr"}.
@acronym{IELR} is a minimal @acronym{LR} algorithm.
That is, given any grammar (@acronym{LR} or non-@acronym{LR}),
@acronym{IELR} and canonical @acronym{LR} always accept exactly the same
@@ -5063,7 +5063,7 @@ grammars, the number of conflicts for @acronym{IELR} is often an order
of magnitude less as well.
This can significantly reduce the complexity of developing of a grammar.
@item @code{"canonical LR"}.
@item @code{"canonical-lr"}.
@cindex delayed syntax errors
@cindex syntax errors delayed
The only advantage of canonical @acronym{LR} over @acronym{IELR} is
@@ -5079,7 +5079,7 @@ Even when canonical @acronym{LR} behavior is ultimately desired,
facilitate the development of a grammar.
@end itemize
@item Default Value: @code{"LALR"}
@item Default Value: @code{"lalr"}
@end itemize
@item namespace