* 2.6.3: (22 commits)
maint: post-release administrivia
version 2.6.3
gnulib: update
tests: check %no-lines
NEWS: warnings with clang
warnings: avoid warnings from clang
tests: no longer disable -O compiler options
yacc.c: initialize yylval in pure-parser mode
skeletons: style changes
tests: minor improvements
tests: use $PERL instead of perl
build: look for Perl in configure.
tests: fix sed portability issues
tests: diff -u is not portable
maint: word changes
lalr1.cc: fix test suite portability
maint: fix an erroneous include
tests: check that headers are self contained
doc: add missing documentation for --report
headers: move CPP guards into YY_*_INCLUDED to avoid collisions
...
Conflicts:
NEWS
doc/bison.texi
tests/headers.at
Fix the following warning
parse-gram.c:2078:14: error: equality comparison with extraneous parentheses
[-Werror,-Wparentheses-equality]
if (((yyn) == (-91)))
~~~~~~^~~~~~~~
parse-gram.c:2078:14: note: remove extraneous parentheses around the
comparison to silence this warning
if (((yyn) == (-91)))
~ ^ ~
parse-gram.c:2078:14: note: use '=' to turn this equality comparison into
an assignment
if (((yyn) == (-91)))
^~
=
1 error generated.
and the following one:
input.cc:740:1: error: function declared 'noreturn' should not return
[-Werror,-Winvalid-noreturn]
static void yyMemoryExhausted (yyGLRStack* yystackp)
__attribute__ ((__noreturn__));
static void
yyMemoryExhausted (yyGLRStack* yystackp)
{
YYLONGJMP (yystackp->yyexception_buffer, 2);
}
^
1 warning and 1 error generated.
This is Apple clang version 3.1 (tags/Apple/clang-318.0.61).
* data/c.m4 (b4_table_value_equals): Use (!!(A == B)) instead of (A == B)
to avoid this warning.
Any reasonable compiler should generate the same code.
* src/uniqstr.h (UNIQSTR_EQ): Likewise.
* data/glr.c (LONGJMP): abort after longjmp to pacify clang.
Tests are running without -O since
f377f69fec because some warnings (about
yylval not being initialized) show only when GCC is given -O2. The
previous patch fixes the warnings. Run the test suite with compiler
options unmodified.
* tests/atlocal.in (O0CFLAGS, O0CXXFLAGS): Remove, use CFLAGS and
CXXFLAGS.
See http://lists.gnu.org/archive/html/bison-patches/2012-08/msg00024.html
(spreading over September and October).
* data/yacc.c (YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN)
(YY_IGNORE_MAYBE_UNINITIALIZED_END, YYLVAL_INITIALIZE):
New macros. Use them to suppress an unwanted GCC diagnostic.
Bison uses "/usr/bin/perl" or "perl" in several places, and it does
not appear to be a problem. But, at least to make it simpler to
change PERL on the make command line, check for perl in configure.
* configure.ac (PERL): New.
* doc/Doxyfile.in, doc/Makefile.am, tests/bison.in: Use it.
Reported by Rob Vermaas' Hydra build farm on x86_64-darwin 10.2.0 with
G++ 4.6.3.
* tests/headers.at (Several parsers): Include AT_DATA_SOURCE_PROLOGUE
in the files to compile.
* data/location.cc: Do not include twice string and iostream (once
by position.hh, and then by location.hh).
* README-hacking (Typical errors): Some hints for other maintainers.
This fixes test 130 (Several parsers).
* data/location.cc: Include <iostream> rather than <iosfwd> since
we really need << on strings for instance.
* NEWS: Document this.
Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
Note that 'make web-manual' fails.
* NEWS: Document these changes.
* doc/Makefile.am: Adjust to generate example files.
* doc/bison.texi: Add a Graphviz section after "Understanding::", the section
describing the .output file, because these are similar.
* doc/figs/example-reduce.dot, doc/figs/example-reduce.txt,
doc/figs/example-shift.dot, doc/figs/example-shift.txt: New, minimal
examples to illustrate the documentation.
Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
Use something similar to the report file.
* src/print_graph.c (print_lhs): New, obstack equivalent of rule_lhs_print.
(print_core): Use here.
Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
* src/graphviz.c (start_graph): Use courier font.
(conclude_red): Use commas to separate attributes. Show the acceptation
as a special reduction, with a blue color and an "Acc" label. Show the
lookahead tokens between square brackets.
(output_red): No longer label default reductions.
* src/print_graph.c (print_core): Refactor spacing, and print an
additional space between a rule's rhs and its lookahead tokens. Also,
capitalize "State".
(print_actions): Style, move a declaration.
Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
All disabled reductions should now be shown as such.
* src/graphviz.c (output_red): Here.
(conclude_red): New.
Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
* src/graphviz.c (output_red): New, show reductions on the graph.
(no_reduce_bitset_init): New, initialize a bitset.
(print_token): New, print a lookahead token.
(escape): New, print "foo" as \"foo\" because Dot doesn't like quotes within
a label.
* src/graphviz.h : Adjust.
* src/print_graph.c (print_actions): Call output_red here.
Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
The label text of nodes is centered "by default" (by the use of '\n' as
a line feed). This gives bad readability to the grammar rules shown in
state nodes, a left justification is much nicer. This is done by using '\l'
as the line feed.
In order to allow \l in the DOT file, changes to the quoting system seem
necessary.
* src/print_graph.c (print_core): Escape tokens here, instead of...
* src/graphviz.c (output_node): Here...
(escape): Using this, new.
Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
* src/graphviz.c (start_graph): Use box rather than ellipsis.
* src/print_graph.c (print_core): Prefix rules with their number.
Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
This feature was introduced in 95a2de5695
(which is part of 2.5), but not documented. Give it a proper name, and
make it public.
* data/c++.m4, data/lalr1.cc, data/glr.cc, data/java.m4: Use
api.location.type instead of location_type.
* src/muscle-tab.c (muscle_percent_variable_update): Map the latter to
the former.
* tests/local.at: Adjust.
* tests/calc.at: Use api.location.type.
Leave tests/java.at with location_type, at least for the time being,
to cover both names.
* doc/bison.texi: Document api.location.type.
(User Defined Location Type): New.
* NEWS: Update.
