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12 years agodoc: explain how mid-rule actions are translated
Akim Demaille [Sun, 9 Dec 2012 15:49:58 +0000 (16:49 +0100)] 
doc: explain how mid-rule actions are translated

* doc/bison.texi (Actions in Mid-Rule): Mention and use named references.
Split into three subsections, among which...
(Mid-Rule Action Translation): this new section.

12 years agoerror: use better locations for unused midrule values
Akim Demaille [Sun, 9 Dec 2012 11:06:21 +0000 (12:06 +0100)] 
error: use better locations for unused midrule values

On

  %%
  exp: {;} {$$;} { $$ = $1; }

instead of reporting (with -fcaret -Wmidrule-value)

  midrule.y:2.6-8: warning: unset value: $$ [-Wmidrule-values]
   exp: {;} {$$;} { $$ = $1; }
        ^^^
  midrule.y:2.6-27: warning: unused value: $2 [-Wmidrule-values]
   exp: {;} {$$;} { $$ = $1; }
        ^^^^^^^^^^^^^^^^^^^^^^

report

  midrule.y:2.6-8: warning: unset value: $$
   exp: {;} {$$;} { $$ = $1; }
        ^^^
  midrule.y:2.10-14: warning: unused value: $2
   exp: {;} {$$;} { $$ = $1; }
            ^^^^^

* src/reader.c (grammar_rule_check): When warning about the value of a
midrule action, use the location of the midrule action instead of the
location of the rule.
the location of the part of the rule.
* tests/actions.at (Default %printer and %destructor for mid-rule values):
Adjust expectations
* tests/input.at (Unused values with default %destructor): Ditto.
(AT_CHECK_UNUSED_VALUES): Ditto.
And use -fcaret.

12 years agodoc: various minor improvements and fixes
Akim Demaille [Sat, 8 Dec 2012 15:18:07 +0000 (16:18 +0100)] 
doc: various minor improvements and fixes

* doc/figs/example.dot, doc/figs/example.y: New.
* doc/bison.texi: Prefer "token" to TOKEN.
Use @group where appropriate.
Adjust with style changes in the output (State 0, not state 0).
Fix some @ref that were missing the third argument.
Fix some incorrect line numbers.
Use "nonterminal", not "non-terminal".
Fix overfull and underfull TeX hboxes.
Put the comments in the index.
Remove duplicate index entries.
Fuse glossary entries where appropriate.
(Understanding): Improve the continuity between sections.
Use example.dot to show the whole graph.
* doc/Makefile.am: Adjust.

12 years agotests: ignore more useless compiler warnings
Akim Demaille [Sun, 9 Dec 2012 15:23:34 +0000 (16:23 +0100)] 
tests: ignore more useless compiler warnings

* tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore complains about
using c++ to compile C.

12 years agotests: be robust to C being compiled with a C++11 compiler
Akim Demaille [Sun, 9 Dec 2012 14:41:50 +0000 (15:41 +0100)] 
tests: be robust to C being compiled with a C++11 compiler

* tests/glr-regression.at: Use YY_NULL instead of NULL.
Comment changes.

12 years agobuild: beware of Clang++ not supporting POSIXLY_CORRECT
Akim Demaille [Sat, 8 Dec 2012 18:33:50 +0000 (19:33 +0100)] 
build: beware of Clang++ not supporting POSIXLY_CORRECT

* m4/c-working.m4 (BISON_LANG_COMPILER_POSIXLY_CORRECT): New.
(BISON_C_COMPILER_POSIXLY_CORRECT): Use it.
For consistency with C++, also define BISON_C_WORKS.
* m4/cxx.m4 (BISON_CXX_COMPILER_POSIXLY_CORRECT): New.
* configure.ac: Use it.
* tests/atlocal.in: Get its result.
Propagate properly CXX values when used to compile C.
When POSIXLY_CORRECT, adjust BISON_C_WORKS and BISON_CXX_WORKS.
* tests/local.at (AT_COMPILE): Use BISON_C_WORKS.

12 years agomaint: post-release administrivia
Akim Demaille [Fri, 7 Dec 2012 10:49:12 +0000 (11:49 +0100)] 
maint: post-release administrivia

* NEWS: Add header line for next release.
* .prev-version: Record previous version.
* cfg.mk (old_NEWS_hash): Auto-update.

12 years agoversion 2.6.90 v2.6.90
Akim Demaille [Fri, 7 Dec 2012 10:37:14 +0000 (11:37 +0100)] 
version 2.6.90

* NEWS: Record release date.

12 years agobuild: fix syntax-check error.
Akim Demaille [Fri, 7 Dec 2012 10:34:51 +0000 (11:34 +0100)] 
build: fix syntax-check error.

* cfg.mk: Exclude names-refs, it includes a "double" if (end of first
line, first of second line below).

test.y:43.12-44.59:  symbol not found in production: if
 if-stmt-a: IF expr[cond] THEN stmt.list[then] ELSE stmt.list[else] FI
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

12 years agocpp: simplify the Flex version checking macro
Theophile Ranquet [Fri, 7 Dec 2012 11:13:38 +0000 (12:13 +0100)] 
cpp: simplify the Flex version checking macro

* src/flex-scanner,h (FLEX_VERSION): Consider YY_FLEX_SUBMINOR_VERSION
defined.

12 years agonews: improve the carets example and fix a typo
Theophile Ranquet [Fri, 7 Dec 2012 10:57:19 +0000 (11:57 +0100)] 
news: improve the carets example and fix a typo

* NEWS: Here.

12 years agocpp: improve the Flex version checking macro
Theophile Ranquet [Thu, 6 Dec 2012 12:21:36 +0000 (13:21 +0100)] 
cpp: improve the Flex version checking macro

* src/flex-scanner.h (FLEX_VERSION): Here.

12 years agocarets: improve the code
Theophile Ranquet [Thu, 6 Dec 2012 12:17:55 +0000 (13:17 +0100)] 
carets: improve the code

* src/location.c: Remove duplicate documentations.
(caret_info): Stylistic change.
(location_caret): Many reworks.

12 years agomaint: update news
Akim Demaille [Fri, 7 Dec 2012 09:40:31 +0000 (10:40 +0100)] 
maint: update news

* NEWS: There is no 2.6.6, remove its stub.

12 years agobuild: keep -Wmissing-declarations and -Wmissing-prototypes for modern GCCs
Akim Demaille [Fri, 7 Dec 2012 08:58:40 +0000 (09:58 +0100)] 
build: keep -Wmissing-declarations and -Wmissing-prototypes for modern GCCs

Fixes a -Werror failure of xalloc.h used in src.
From Eric Blake.
http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00006.html

* configure.ac: Check whether GCC pragma diagnostic push/pop works.
Enable these warnings for bison if it does.
Enable these warnings for the test suite anyway.

12 years agobuild: drop -Wcast-qual
Akim Demaille [Fri, 7 Dec 2012 08:48:41 +0000 (09:48 +0100)] 
build: drop -Wcast-qual

Suggested by Jim Meyering.
http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00017.html
* configure.ac (warn_common): Remove -Wcast-qual.

12 years agognulib: update
Akim Demaille [Wed, 5 Dec 2012 15:16:17 +0000 (16:16 +0100)] 
gnulib: update

12 years agomisc: pacify the Tiny C Compiler
Theophile Ranquet [Thu, 6 Dec 2012 09:49:12 +0000 (10:49 +0100)] 
misc: pacify the Tiny C Compiler

* src/graphviz.c (conclude_red): Remove a useless return.

12 years agocpp: make the check of Flex version portable
Theophile Ranquet [Wed, 5 Dec 2012 17:26:36 +0000 (18:26 +0100)] 
cpp: make the check of Flex version portable

This was problematic with tcc 0.9.25

* src/flex-scanner.h (FLEX_VERSION_GT): Rewrite and rename as...
(FLEX_VERSION): This.

12 years agomisc: require getline
Theophile Ranquet [Wed, 5 Dec 2012 14:27:25 +0000 (15:27 +0100)] 
misc: require getline

* bootstrap.conf: Here, used by src/location.c.
* src/getargs.c (long_options): Rename --flags to --feature.

12 years agoc++: support wide strings for file names
Akim Demaille [Wed, 5 Dec 2012 10:21:21 +0000 (11:21 +0100)] 
c++: support wide strings for file names

Reported by Mark Boyall.
http://lists.gnu.org/archive/html/help-bison/2011-08/msg00002.html

* data/location.cc (operator<<): Be templated on the type of
output stream.
* tests/headers.at (Several parsers): Adjust.

12 years agodoc: document carets
Theophile Ranquet [Tue, 4 Dec 2012 12:12:12 +0000 (13:12 +0100)] 
doc: document carets

* NEWS: Announce it.
* doc/bison.texi (Bison Options):  Here.

12 years agotests: enhance existing tests with carets
Theophile Ranquet [Mon, 3 Dec 2012 10:12:07 +0000 (11:12 +0100)] 
tests: enhance existing tests with carets

* tests/actions.at: Unset value.
* tests/conflicts.at: Rule useless due to conflicts.
* tests/input.at: Missing terminator, unexpected end of file, command line
redefinition of variable.
* tests/named-refs.at: Many errors.
* tests/reduce.at: Useless nonterminals and rules.
* tests/regression.at: Large token.

12 years agoerrors: show carets
Theophile Ranquet [Fri, 30 Nov 2012 13:34:56 +0000 (14:34 +0100)] 
errors: show carets

* src/locations.c (caret_info): New, persistant information useful
for...
(location_caret): New, print a caret.
(cleanup_caret): Release caret_info cleanly, call it...
* src/main.c (main): Here.
* src/complain.c (error_message): Call location_caret here.

12 years agogetargs: add support for --flags/-f
Theophile Ranquet [Fri, 30 Nov 2012 13:33:05 +0000 (14:33 +0100)] 
getargs: add support for --flags/-f

Introduce -fdiagnostics-show-caret

* src/getargs.c (flag_flag): New global.
* src/getargs.h (flag): New enum.

12 years agogetargs: don't label --language/-l as experimental
Theophile Ranquet [Fri, 30 Nov 2012 14:27:54 +0000 (15:27 +0100)] 
getargs: don't label --language/-l as experimental

* NEWS: Announce it.
* doc/bison.texi, src/getargs.c (usage): Here.

12 years agogetargs: fix the locations of command-line input
Theophile Ranquet [Mon, 12 Mar 2012 09:01:09 +0000 (10:01 +0100)] 
getargs: fix the locations of command-line input

* src/getargs.c (command_line_location): Here.
* tests/input.at: Adjust.

12 years agoerrors: indent missing action code semicolon warning
Theophile Ranquet [Thu, 15 Nov 2012 12:02:40 +0000 (12:02 +0000)] 
errors: indent missing action code semicolon warning

Also, remove a duplicate #define.

* src/scan-code.l (SC_RULE_ACTION): Here.
* tests/actions.at: Adjust.

12 years agoparser: accept #line NUM
Akim Demaille [Mon, 3 Dec 2012 14:59:57 +0000 (15:59 +0100)] 
parser: accept #line NUM

* src/scan-gram.l (scanner): Accept '#line NUM'.
(handle_syncline): Adjust to the possible missing file name.

12 years agom4: use a safer pattern to enable/disable output
Akim Demaille [Mon, 3 Dec 2012 14:29:44 +0000 (15:29 +0100)] 
m4: use a safer pattern to enable/disable output

Work on some other areas of Bison revealed that some macros expanded
to be expanded only once were actually expanded several times.  This
was due to the fact that changecom was not properly restored each
time, and macro names appearing in comments were then expanded.

Introduce begin/end macros which are easier to match that
changecom()/changecom(#).

* data/bison.m4 (b4_output_begin, b4_output_end): New.
* data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
* data/location.cc, data/stack.hh, data/yacc.c:
Use them.

12 years agotests: beware of gnulib's need for config.h
Akim Demaille [Mon, 3 Dec 2012 14:43:57 +0000 (15:43 +0100)] 
tests: beware of gnulib's need for config.h

* tests/skeletons.at, tests/torture.at: Be sure to include config.h
where appropriate.

12 years agognulib: update
Akim Demaille [Fri, 30 Nov 2012 11:17:10 +0000 (12:17 +0100)] 
gnulib: update

* lib/yyerror.c: Include config.h since the following stdio.h might be
from gnulib.

12 years agoyacc.c, glr.c: check and fix the display of locations
Akim Demaille [Fri, 30 Nov 2012 10:19:43 +0000 (11:19 +0100)] 
yacc.c, glr.c: check and fix the display of locations

In some case, negative column number could be displayed.
Make YY_LOCATION_PRINT similar to bison's own implementation of
locations.  Since the macro is getting fat, make it a static
function.
Reported by Jonathan Fabrizio.

* data/c.m4 (yy_location_print_define): Improve the implementation,
and generate the yy_location_print_ function.
Adjust YY_LOCATION_PRINT.
* tests/actions.at (Location Print): New tests.

12 years agoformatting changes
Akim Demaille [Fri, 30 Nov 2012 10:19:33 +0000 (11:19 +0100)] 
formatting changes

* data/c.m4: Fix comments, put macros in a more natural order.
Space changes (from M-x whitespace-cleanup).
* src/location.c: Fix spaces.
* tests/actions.at: Space changes.

12 years agoglr.c: remove stray macro
Akim Demaille [Fri, 30 Nov 2012 10:15:12 +0000 (11:15 +0100)] 
glr.c: remove stray macro

* data/glr.c (YYOPTIONAL_LOC): Remove, unused since commit
769a8ef9bcb5e14d0be9d0869f5dca20ab093930.

12 years agodoc: minor fixes
Akim Demaille [Thu, 29 Nov 2012 13:35:48 +0000 (14:35 +0100)] 
doc: minor fixes

* doc/bison.texi: Use stderr for error messages.
Meta-variables are usually spelled in lower case.
Use @code for function names.

12 years agodoc: improve the index
Akim Demaille [Thu, 29 Nov 2012 13:09:34 +0000 (14:09 +0100)] 
doc: improve the index

* doc/bison.texi: Fix uses of "deffn" so that the arguments of the
directives do not show in the index.
Remove a duplicate entry for api.pure.

12 years agodoc: introduce api.pure full, rearrange some examples
Theophile Ranquet [Mon, 26 Nov 2012 17:17:15 +0000 (18:17 +0100)] 
doc: introduce api.pure full, rearrange some examples

* NEWS: Add entry.
* doc/bison.texi (%define Summary): Show the old Yacc behaviour.
(Parser Function): Move parse-param examples here.
(Pure Calling): Remove parse-param examples.
(Error Reporting): Don't show the old behavior, stick to 'full'.

12 years agoyacc.c: support "%define api.pure full"
Theophile Ranquet [Fri, 23 Nov 2012 17:30:47 +0000 (17:30 +0000)] 
yacc.c: support "%define api.pure full"

This makes the interface for yyerror() pure without the need for a spurious
parse_param.

* data/yacc.c (b4_pure_if, b4_pure_flag): New definition, accept three states.
(b4_yacc_pure_if): Rename as...
(b4_yyerror_arg_loc_if): This, and use b4_pure_flag.
* tests/actions.at (%define api.pure): Modernize.
* test/calc.at (Simple LALR Calculator): Modernize.
* tests/local.at (AT_YYERROR_ARG_LOC_IF): Adjust.

12 years agolocal.at: improvements
Theophile Ranquet [Fri, 23 Nov 2012 16:23:27 +0000 (16:23 +0000)] 
local.at: improvements

* tests/local.at (AT_YYERROR_FORMALS): Make llocp const.
(AT_PURE_AND_LOC_IF, AT_GLR_OR_PARAM_IF): Remove, expand...
(AT_YYERROR_ARG_LOC_IF): Here, and use m4_join for readability.

12 years agoMerge remote-tracking branch 'origin/branch-2.6' into maint
Akim Demaille [Mon, 26 Nov 2012 08:05:28 +0000 (09:05 +0100)] 
Merge remote-tracking branch 'origin/branch-2.6' into maint

* origin/branch-2.6:
  yacc.c: always initialize yylloc
  doc: one of the fixes for an ambiguous grammar was ambiguous too
  doc: fix the dangling else with precedence directives
  doc: prefer "token" to TOKEN
  doc: formatting changes

Conflicts:
NEWS
doc/bison.texi

12 years agoyacc.c: always initialize yylloc
Theophile Ranquet [Mon, 19 Nov 2012 10:43:56 +0000 (10:43 +0000)] 
yacc.c: always initialize yylloc

The initial location might be used if the parser starts by an empty
reduction, so really ensure proper initialization of the initial
location.  The previous approach fails for PostgreSQL, which uses
Reported by Peter Eisentraut.
http://lists.gnu.org/archive/html/bug-bison/2012-11/msg00023.html
With help from Théophile Ranquet.

* data/yacc.c (b4_declare_scanner_communication_variables): Be sure
to initialize yylloc, even when its structure is unknown.
(yyparse): Simplify the call to b4_dollar_pushdef.
* tests/actions.at (Initial location): Check of similar pattern
as in the case of PostgreSQL.

12 years agoscanner: issue a single error for groups of invalid characters
Akim Demaille [Fri, 23 Nov 2012 10:21:47 +0000 (11:21 +0100)] 
scanner: issue a single error for groups of invalid characters

* src/scan-gram.l: Scan groups of invalid characters together.
* tests/input.at, tests/named-refs.at: Adjust.

12 years agotests: formatting changes
Akim Demaille [Fri, 23 Nov 2012 09:11:50 +0000 (10:11 +0100)] 
tests: formatting changes

* tests/named-refs.at: Here.

12 years agodoc: one of the fixes for an ambiguous grammar was ambiguous too
Akim Demaille [Thu, 22 Nov 2012 14:49:18 +0000 (15:49 +0100)] 
doc: one of the fixes for an ambiguous grammar was ambiguous too

Reported by Аскар Сафин.
http://lists.gnu.org/archive/html/bug-bison/2012-11/msg00024.html

* doc/bison.texi (Reduce/Reduce): Fix the resulting ambiguity using
precedence/associativity directives.

12 years agodoc: fix the dangling else with precedence directives
Akim Demaille [Thu, 22 Nov 2012 14:16:07 +0000 (15:16 +0100)] 
doc: fix the dangling else with precedence directives

* doc/bison.texi (Non Operators): New node.
(Shift/Reduce): Point to it.
Don't promote "%expect n" too much.

12 years agodoc: prefer "token" to TOKEN
Akim Demaille [Thu, 22 Nov 2012 14:12:24 +0000 (15:12 +0100)] 
doc: prefer "token" to TOKEN

This is more readable in short examples.

* doc/bison.texi (Shift/Reduce): here.
Make "win" and "lose" action more alike.

12 years agodoc: formatting changes
Akim Demaille [Thu, 22 Nov 2012 13:24:54 +0000 (14:24 +0100)] 
doc: formatting changes

* doc/bison.texi: Use @group.

12 years agoscanner: use explicit "ignore" statements
Akim Demaille [Wed, 14 Nov 2012 09:57:45 +0000 (10:57 +0100)] 
scanner: use explicit "ignore" statements

* src/scan-gram.l: here.

12 years agotests: close files in glr-regression
Theophile Ranquet [Mon, 12 Nov 2012 15:41:52 +0000 (15:41 +0000)] 
tests: close files in glr-regression

* tests/glr-regression.at: Here.

12 years agoxml: match DOT output and xml2dot.xsl processing
Theophile Ranquet [Tue, 23 Oct 2012 15:43:54 +0000 (15:43 +0000)] 
xml: match DOT output and xml2dot.xsl processing

Make the DOT produced by XSLT processing equivalent to the one made with the
--graph option.

* data/xslt/xml2dot.xsl: Stylistic changes, and add support for reductions.
* doc/bison.texi (Xml): Update.
* src/graphviz.c (conclude_red): Minor stylistic changes to DOT internals.
(output_red): Swap enabled and disabled reductions output, for coherence
with XSLT output.
* src/print_graph.c (print_core): Minor stylistic change to States' output.
(print_actions): Swap order of output for reductions and transitions.
* tests/local.at (AT_BISON_CHECK_XML): Ignore differences in order.
* tests/output.at: Adjust to changes in DOT internals.

12 years agoxml: factor xslt space template
Theophile Ranquet [Wed, 7 Nov 2012 09:54:06 +0000 (09:54 +0000)] 
xml: factor xslt space template

* data/xslt/bison.xsl (space): New, import from...
* data/xslt/xml2text.xsl: Here.

12 years agograph: fix a memory leak
Theophile Ranquet [Fri, 9 Nov 2012 16:40:45 +0000 (16:40 +0000)] 
graph: fix a memory leak

* src/graphviz.c (output_red): Here.

12 years agoxml: documentation
Theophile Ranquet [Mon, 22 Oct 2012 17:37:57 +0000 (17:37 +0000)] 
xml: documentation

The XML output combined with the XSL Transformations provided in data/ are
incredibly useful, they should be documented.

* doc/bison.texi (Xml): New node.

12 years agooutput: capitalize State
Theophile Ranquet [Thu, 18 Oct 2012 12:02:05 +0000 (12:02 +0000)] 
output: capitalize State

* src/print.c (print_state): Here.
* tests/conflicts.at, tests/existing.at, tests/local.at, tests/reduce.at,
tests/regression.at, tests/sets.at: Adjust.

12 years agomaint: address syntax-check errors.
Akim Demaille [Mon, 12 Nov 2012 08:39:41 +0000 (09:39 +0100)] 
maint: address syntax-check errors.

* cfg.mk: Ignore the "error" call in tests/c++.at, it is not to be
translated.
* doc/bison.texi: Fix incorrect @pxref use.
* po/POTFILES.in: Add missing file.
* src/print_graph.c: Remove useless include.

12 years agotests: use valgrind where appropriate
Akim Demaille [Mon, 12 Nov 2012 08:33:26 +0000 (09:33 +0100)] 
tests: use valgrind where appropriate

Reported by Théophile Ranquet.

* cfg.mk (sc_at_parser_check): New.
* tests/c++.at: Fix use of AT_CHECK vs. AT_PARSER_CHECK.

12 years agoMerge remote-tracking branch 'origin/branch-2.6' into maint
Akim Demaille [Mon, 12 Nov 2012 08:06:55 +0000 (09:06 +0100)] 
Merge remote-tracking branch 'origin/branch-2.6' into maint

* origin/branch-2.6:
  tests: use valgrind where appropriate
  tests: don't expect $EGREP to support -w

12 years agotests: use valgrind where appropriate
Akim Demaille [Sat, 10 Nov 2012 08:26:40 +0000 (09:26 +0100)] 
tests: use valgrind where appropriate

Reported by Théophile Ranquet.

* tests/glr-regression.at: Rewrite some test cases so that AT_PARSER_CHECK,
which runs valgrind, is exposed with the parser, not with "echo".
* tests/local.at, tests/regression.at, tests/headers.at:
Use AT_PARSER_CHECK for generated parsers.

12 years agotests: don't expect $EGREP to support -w
Akim Demaille [Thu, 8 Nov 2012 18:34:29 +0000 (19:34 +0100)] 
tests: don't expect $EGREP to support -w

Does not work on Solaris 10.  Reported by Dennis Clarke.
http://lists.gnu.org/archive/html/bug-bison/2012-11/msg00009.html
* tests/headers.at (Several parsers): Use Perl instead.
While at it, run it only once, on all the generated headers.
Adjust to YY_NULL be defined in position.hh.

12 years agotests: more possible error compiler messages for "#error"
Akim Demaille [Thu, 8 Nov 2012 09:25:15 +0000 (10:25 +0100)] 
tests: more possible error compiler messages for "#error"

* tests/synclines.at (AT_SYNCLINES_COMPILE): Adjust for Clang.
Verified with GCC 4.0, 4.2 to 4.8, and Clang 2.9, 3.2: none skip.

12 years agoregen
Akim Demaille [Thu, 8 Nov 2012 08:22:58 +0000 (09:22 +0100)] 
regen

12 years agoMerge branch 'branch-2.6' into maint
Akim Demaille [Thu, 8 Nov 2012 08:20:48 +0000 (09:20 +0100)] 
Merge branch 'branch-2.6' into maint

* origin/branch-2.6:
  maint: post-release administrivia
  version 2.6.5
  regen
  tests: syntax-check
  tests: beware of compilers that do not support POSIXLY_CORRECT
  gnulib: update

Conflicts:
NEWS
src/parse-gram.c
src/parse-gram.h

12 years agomaint: post-release administrivia
Akim Demaille [Wed, 7 Nov 2012 17:35:36 +0000 (18:35 +0100)] 
maint: post-release administrivia

* NEWS: Add header line for next release.
* .prev-version: Record previous version.
* cfg.mk (old_NEWS_hash): Auto-update.

12 years agoversion 2.6.5 v2.6.5
Akim Demaille [Wed, 7 Nov 2012 17:09:46 +0000 (18:09 +0100)] 
version 2.6.5

* NEWS: Record release date.

12 years agoregen
Akim Demaille [Wed, 7 Nov 2012 16:33:14 +0000 (17:33 +0100)] 
regen

12 years agotests: syntax-check
Akim Demaille [Wed, 7 Nov 2012 16:31:32 +0000 (17:31 +0100)] 
tests: syntax-check

* tests/actions.at: Fix typo.

12 years agotests: beware of compilers that do not support POSIXLY_CORRECT
Akim Demaille [Wed, 7 Nov 2012 16:23:06 +0000 (17:23 +0100)] 
tests: beware of compilers that do not support POSIXLY_CORRECT

Running "maintainer-release-check" on OS X with Clang 2.9 fails,
because "clang-mp-2.9 -o test -g test.c" launches "/usr/bin/dsymutil
test -o test.dSYM" which fails with "error: unable to open executable
'-o'".

* m4/c-working.m4 (BISON_CHECK_WITH_POSIXLY_CORRECT)
(BISON_C_COMPILER_POSIXLY_CORRECT): New.
* configure.ac: Use the latter.
* tests/atlocal.in (POSIXLY_CORRECT_IS_EXPORTED): New.
* tests/local.at (AT_BISON_CHECK_WARNINGS_): Use it instead of computing its
value each time.
(AT_QUELL_VALGRIND): Skip tests that cannot work because of compilers
that do not support POSIXLY_CORRECT.

12 years agognulib: update
Akim Demaille [Wed, 7 Nov 2012 11:46:30 +0000 (12:46 +0100)] 
gnulib: update

12 years agoMerge branch 'branch-2.6' into maint
Akim Demaille [Tue, 6 Nov 2012 17:00:33 +0000 (18:00 +0100)] 
Merge branch 'branch-2.6' into maint

* origin/branch-2.6: (24 commits)
  tests: calc: modernize the use of locations
  tests: remove useless location initializations
  lalr1.cc: always initialize yylval.
  tests: check that C and C++ objects can be linked together.
  yacc.c: also disable -Wuninitialized.
  glr.cc, yacc.c: initialize yylloc properly
  yacc.c, glr.c: a better YY_LOCATION_PRINT
  yacc.c: simplify initialization
  doc: formatting changes
  c++: fix position operator signatures
  tests: remove useless location initialization.
  tests: fix locations in C
  tests: handle %parse-param in the generated yyerror
  tests: simplifications
  grammars: fix display of nul character in error message
  tests: sort
  tests: cosmetic changes
  comment changes
  autoconf: update
  gnulib: update
  ...

Conflicts:
NEWS
gnulib
tests/named-refs.at
tests/regression.at

12 years agotests: calc: modernize the use of locations
Akim Demaille [Tue, 6 Nov 2012 15:25:37 +0000 (16:25 +0100)] 
tests: calc: modernize the use of locations

* tests/calc.at: Don't initialize the location, let the parser
do it.
Use a $printer.
Change some testing input to be easier to distinguish (instead of always
"0 0" for instance).

12 years agotests: remove useless location initializations
Akim Demaille [Tue, 6 Nov 2012 14:42:50 +0000 (15:42 +0100)] 
tests: remove useless location initializations

* tests/actions.at, tests/calc.at: here.

12 years agolalr1.cc: always initialize yylval.
Akim Demaille [Thu, 1 Nov 2012 14:38:25 +0000 (15:38 +0100)] 
lalr1.cc: always initialize yylval.

* data/lalr1.cc: here.

12 years agotests: check that C and C++ objects can be linked together.
Akim Demaille [Tue, 6 Nov 2012 14:35:37 +0000 (15:35 +0100)] 
tests: check that C and C++ objects can be linked together.

* tests/local.at (AT_SKIP_IF_CANNOT_LINK_C_AND_CXX): New.
* tests/headers.at (Several parsers): Use it.

12 years agoyacc.c: also disable -Wuninitialized.
Akim Demaille [Tue, 6 Nov 2012 14:34:56 +0000 (15:34 +0100)] 
yacc.c: also disable -Wuninitialized.

* data/yacc.c (YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN): For some versions
of GCC, -Wmaybe-uninitialized alone does not suffice.

12 years agoglr.cc, yacc.c: initialize yylloc properly
Akim Demaille [Tue, 6 Nov 2012 14:34:51 +0000 (15:34 +0100)] 
glr.cc, yacc.c: initialize yylloc properly

There are several issues to address here.  One is that yylloc should
be initialized when possible.  Another is that the push parser needs
to update yypushed_loc when the user modified it.  And if the parser
starts by a reduction of an empty, it uses the first location on the
stack, which, therefore, must also be initialized to this initial
location.

This is getting complex, especially since because initializing a
global (impure interface) is different from initializing a local
variable.  To simplify, the local yylloc is not initialized during its
definition.

* data/c.m4 (b4_yyloc_default_define): Replace by...
(b4_yyloc_default): this.
Adjust dependencies.
* data/glr.cc: Initialize yylloc.
* data/yacc.c (b4_declare_scanner_communication_variables):
Initialize yylloc during its definition.
Don't define yyloc_default.
(yypush_parse): The location formal is not const, as we might
initialize it.
(yyparse): Define yyloc_default.
Use it before running the user initial action.
Possibly update the first location on the stack, and the pushed
location after the user initial action.
* tests/actions.at (Initial locations): Check that the initial
location is correct.

12 years agoyacc.c, glr.c: a better YY_LOCATION_PRINT
Akim Demaille [Mon, 5 Nov 2012 15:58:24 +0000 (16:58 +0100)] 
yacc.c, glr.c: a better YY_LOCATION_PRINT

* data/c.m4 (b4_yy_location_print_define): New.
Now issues "short" locations, e.g., "1.1" instead of "1.1-1.1".
Was initially a function, but then we face "static but unused"
warnings.
Simpler as a macro.
* tests/local.at, data/glr.c, data/yacc.c: Use it instead of duplicating.
* tests/actions.at: Adjust expectations.

12 years agoyacc.c: simplify initialization
Akim Demaille [Mon, 5 Nov 2012 14:19:45 +0000 (15:19 +0100)] 
yacc.c: simplify initialization

* data/yacc.c: Fuse the initializations of yyssp, yyss and the like.
Remove an obsolete comment: we do initialize these initial stack
members (in some cases).

12 years agodoc: formatting changes
Akim Demaille [Sat, 3 Nov 2012 16:52:13 +0000 (17:52 +0100)] 
doc: formatting changes

* doc/bison.texi: In a pointer type.

12 years agoc++: fix position operator signatures
Akim Demaille [Sat, 3 Nov 2012 15:22:15 +0000 (16:22 +0100)] 
c++: fix position operator signatures

* data/location.cc (operator+=, operator-=): Remove const from return
type.

12 years agotests: remove useless location initialization.
Akim Demaille [Sat, 3 Nov 2012 16:29:07 +0000 (17:29 +0100)] 
tests: remove useless location initialization.

* tests/glr-regression.at: here.
glr.c does initialize yylloc.

12 years agotests: fix locations in C
Akim Demaille [Sat, 3 Nov 2012 16:15:43 +0000 (17:15 +0100)] 
tests: fix locations in C

* tests/local.at (AT_YYERROR_DEFINE): Don't display the end of the location
if it is not after its beginning.
* tests/actions.at, tests/cxx-type.at: Adjust the expected output.

12 years agotests: handle %parse-param in the generated yyerror
Akim Demaille [Sat, 3 Nov 2012 09:05:03 +0000 (10:05 +0100)] 
tests: handle %parse-param in the generated yyerror

* tests/local.at (AT_PARSE_PARAMS): New.
(AT_YYERROR_FORMALS, AT_YYERROR_DEFINE): Use it to add the parse-param
to yyerror.
* tests/calc.at, tests/regression.at: Use AT_YYERROR_DEFINE and
AT_YYERROR_DECLARE, now that they handle properly the parse-params.
Be sure to let AT_BISON_OPTION_PUSHDEFS now what parse-params are used.

12 years agotests: simplifications
Akim Demaille [Fri, 2 Nov 2012 17:20:56 +0000 (18:20 +0100)] 
tests: simplifications

* tests/actions.at (Exotic Dollars): Formatting changes.
Use AT_FULL_COMPILE.
(AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove useless initialization of @$.

12 years agogrammars: fix display of nul character in error message
Akim Demaille [Thu, 1 Nov 2012 12:47:12 +0000 (13:47 +0100)] 
grammars: fix display of nul character in error message

Reported by Marc Mendiola.
http://lists.gnu.org/archive/html/help-bison/2012-10/msg00017.html

* gnulib: Update to get quote_mem.
* src/scan-gram.l: Use it.
* tests/input.at (Invalid inputs): Additional checks.
* tests/named-refs.at: Likewise.

12 years agotests: sort
Akim Demaille [Thu, 1 Nov 2012 12:54:36 +0000 (13:54 +0100)] 
tests: sort

* tests/regression.at (Invalid inputs, Invalid inputs with {}): Move to...
* tests/input.at: here, for consistency.

12 years agotests: cosmetic changes
Akim Demaille [Thu, 1 Nov 2012 15:11:13 +0000 (16:11 +0100)] 
tests: cosmetic changes

* tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): Improve the
displayed title.

12 years agocomment changes
Akim Demaille [Thu, 1 Nov 2012 14:38:32 +0000 (15:38 +0100)] 
comment changes

* data/lalr1.cc: here.

12 years agoautoconf: update
Akim Demaille [Thu, 1 Nov 2012 14:36:44 +0000 (15:36 +0100)] 
autoconf: update

There are comment changes only in the files we use.

12 years agognulib: update
Akim Demaille [Thu, 1 Nov 2012 14:34:03 +0000 (15:34 +0100)] 
gnulib: update

12 years agoregen
Akim Demaille [Fri, 26 Oct 2012 12:23:18 +0000 (14:23 +0200)] 
regen

12 years agoyacc.c: initialize yylval and yylloc.
Akim Demaille [Fri, 26 Oct 2012 09:25:41 +0000 (11:25 +0200)] 
yacc.c: initialize yylval and yylloc.

When generating a pure push parser, the initialization of yylval and
yylloc may not be visible to the compiler.  With warnings enabled, GCC
4.3.6, 4.4.7, 4.5.4, and 4.6.3 report uninitialized uses of
yylval/yylloc.  Using local pragmas to disable these warnings is not
supported before 4.6, and 4.6 does not support it properly.  So
initialize yylval and yylloc at their definition.  Reported by Peter
Simons.  See
http://lists.gnu.org/archive/html/bison-patches/2012-10/msg00133.html

* data/c.m4 (b4_yyloc_default_define): New.
* data/yacc.c: Use it when locations are requested.
(YYLVAL_INITIALIZE): Replace by...
(YY_INITIAL_VALUE): this.
(yyparse): Initialize yylloc and yylval.
Therefore, remove the initialization of yylloc's field.
* data/glr.c: Likewise.

12 years agoMerge branch 'branch-2.6' into maint
Akim Demaille [Fri, 26 Oct 2012 14:33:20 +0000 (16:33 +0200)] 
Merge branch 'branch-2.6' into maint

* origin/branch-2.6:
  regen
  yacc.c: do not define location support when not using locations
  maint: be compilable with GCC 4.0
  tests: address a warning from GCC 4.4
  tests: don't use options that Clang does not support
  tests: restore the tests on -Werror
  regen
  parse-gram: update the Bison interface
  fix comment

12 years agodoc: minor style change
Akim Demaille [Wed, 24 Oct 2012 14:59:41 +0000 (16:59 +0200)] 
doc: minor style change

* doc/figs/example-reduce.txt: here.

12 years agomaint: use gendocs's new -I option
Akim Demaille [Wed, 24 Oct 2012 14:59:30 +0000 (16:59 +0200)] 
maint: use gendocs's new -I option

* gnulib: Update gendocs.
* cfg.mk (gendocs_options_): New.

12 years agoregen
Akim Demaille [Thu, 25 Oct 2012 12:49:11 +0000 (14:49 +0200)] 
regen

12 years agoyacc.c: don't use _Pragma GCC diagnostic with 4.6
Akim Demaille [Thu, 25 Oct 2012 12:45:36 +0000 (14:45 +0200)] 
yacc.c: don't use _Pragma GCC diagnostic with 4.6

Reported by Peter Simons.
http://lists.gnu.org/archive/html/bug-bison/2012-10/msg00033.html

* data/yacc.c (b4_declare_scanner_communication_variables): 4.7
seems fine though.

12 years agoregen
Akim Demaille [Fri, 26 Oct 2012 12:27:32 +0000 (14:27 +0200)] 
regen

12 years agoyacc.c: do not define location support when not using locations
Akim Demaille [Fri, 26 Oct 2012 08:31:55 +0000 (10:31 +0200)] 
yacc.c: do not define location support when not using locations

* data/yacc.c (YYLLOC_DEFAULT, YYRHSLOC): Don't define when not
using locations.

12 years agomaint: be compilable with GCC 4.0
Akim Demaille [Fri, 26 Oct 2012 12:16:29 +0000 (14:16 +0200)] 
maint: be compilable with GCC 4.0

The "shadows a global declaration" warning in GCC 4.0 was a bit
annoying.  It does not like that a type name be used in a prototype of
a function (not the implementation, just the declaration):

  In file included from src/LR0.c:38:
  src/reader.h:56: warning: declaration of 'named_ref' shadows a
                            global declaration
  src/named-ref.h:35: warning: shadowed declaration is here

It does not like either when a global variable name is used in a
prototype.  Flex 2.5.37 generates this prototype:

  void gram_set_debug (int debug_flag  );

* src/getargs.h, src/getargs.c (debug_flag): Rename as...
(debug): this.
Adjust dependencies.
* src/reader.h: Don't use "named_ref" as a formal argument name.