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2184 Commits

Author SHA1 Message Date
Akim Demaille
e1dd2807e6 getargs: rename argument to avoid gnulib's renaming 
With Clang 6.0:

      CC       src/bison-getargs.o
    bison/src/getargs.c:67:12: error: parameter 'option' not found in the
                               function declaration [-Werror,-Wdocumentation]
     *  \param option   option being decoded.
               ^~~~~~
    bison/src/getargs.c:67:12: note: did you mean 'rpl_option'?

* src/getargs.c: Don't use `option` as a documentation argument.
 2018-05-08 12:06:05 +02:00
Akim Demaille
a2c525b34c build: re-enable compiler warnings, and fix them 
There are warnings (-Wextra) in generated C++ code:

  ltlparse.cc: In member function 'ltlyy::parser::symbol_number_type
  ltlyy::parser::by_state::type_get() const':
  ltlparse.cc:452:33: warning: enumeral and non-enumeral type in
  conditional expression
      return state == empty_state ? empty_symbol : yystos_[state];

Reported by Alexandre Duret-Lutz.

It turns out that -Wall and -Wextra were disabled because of a stupid
typo.

* configure.ac: Fix the stupid typo.
* data/lalr1.cc, src/AnnotationList.c, src/InadequacyList.c,
* src/ielr.c, src/print.c, src/scan-code.l, src/symlist.c,
* src/symlist.h, src/symtab.c, src/tables.c, tests/actions.at,
* tests/calc.at, tests/cxx-type.at, tests/glr-regression.at,
* tests/named-refs.at, tests/torture.at:
Fix warnings, mostly issues about variables used only with assertions,
which are disabled with -DNDEBUG.
 2015-01-23 07:52:50 +01:00
Akim Demaille
16832bf546 build: fix some warnings 
Reported by John Horigan.
http://lists.gnu.org/archive/html/bug-bison/2015-01/msg00034.html

* src/graphviz.c, src/symtab.h: Address compiler warnings.
 2015-01-18 15:41:15 +01:00
Akim Demaille
559b30881d doc: minor fixes 
* doc/bison.texi: Fix warnings about colon in reference names.
* data/bison.m4, src/files.h: Fix comments.
* doc/Doxyfile.in: update.
 2015-01-16 10:52:17 +01:00
Akim Demaille
671850a1c3 bison: avoid warnings from static code analysis 
A static analysis tool reports that some callers of symbol_list_n_get
might get NULL and not handle it properly.  This is not the case, yet
we can suppress this pattern.

Reported by Mike Sullivan.
<https://lists.gnu.org/archive/html/bug-bison/2013-12/msg00027.html>

* src/symlist.c (symbol_list_n_get): Actually it is never called
to return 0.  Enforce this postcondition via aver.
(symbol_list_n_type_name_get): Simplify accordingly.  In particular,
discards a (translated) useless error message.
* src/symlist.h: Adjust documentation.
* src/scan-code.l: Style change.
 2015-01-09 15:27:59 +01:00
Akim Demaille
827bc59ca1 %union: fix the support for named %union 
Bison supports a union tag, for obscure reasons.  But it does a poor
job at it, especially since Bison 3.0.
Reported by Stephen Cameron and Tobias Frost.

It did not ensure that the name was not given several times.  An easy
way to do this is to make the %union tag be handled as a %define
variable, as they cannot be defined several times.

Since Bison 3.0, the synclines were wrongly placed, resulting in
invalid code.  Addressing this issue, because of the way the union tag
was stored (as a code muscle), would have been tedious.  Unless we
rather define the %union tag as a %percent variable, whose synclines
are easier to manipulate.

So replace the b4_union_name muscle by the api.value.union.name
%define variable, document, and check.

* data/bison.m4: Make sure that api.value.union.name has a keyword value.
* data/c++.m4: Make sure that api.value.union.name is not defined.
* data/c.m4 (b4_union_name): No longer use it, use api.value.union.name.
* doc/bison.texi (%define Summary): Document it.
* src/parse-gram.y (union_name): No longer define b4_uion_name, but
api.value.union.name.
* tests/input.at (Redefined %union name): New.
* tests/synclines.at (%union name syncline): New.
* tests/types.at: Check named %unions.
 2015-01-04 18:00:51 +01:00
Akim Demaille
3209eb1c4c package: bump to 2015 
Which also requires:

* gnulib: Update.
 2015-01-04 17:49:13 +01:00
Akim Demaille
975bb56431 flex: don't trust YY_USER_INIT 
Reported by Bernd Edligner and others.

* src/scan-gram.l: here.
 2014-12-31 14:54:43 +01:00
Akim Demaille
ab96bb2457 build: use abort to pacify compiler errors 
clang, with -DNDEBUG and -Werror fails on some functions that might
lack a return.  This is because aver is just another assert, discarded
with -DNDEBUG.  So use abort.

* src/muscle-tab.c, src/scan-skel.l: here.
 2014-02-03 15:27:02 +01:00
Akim Demaille
fc51acddb4 package: bump to 2014 
* AUTHORS, ChangeLog-2012, Makefile.am, NEWS, PACKAGING, README,
* README-alpha, README-hacking, THANKS, TODO, bootstrap.conf,
* build-aux/darwin11.4.0.valgrind, build-aux/local.mk,
* build-aux/update-b4-copyright,
* build-aux/update-package-copyright-year, cfg.mk, configure.ac,
* data/README, data/bison.m4, data/c++-skel.m4, data/c++.m4,
* data/c-like.m4, data/c-skel.m4, data/c.m4, data/glr.c, data/glr.cc,
* data/java-skel.m4, data/java.m4, data/lalr1.cc, data/lalr1.java,
* data/local.mk, data/location.cc, data/stack.hh, data/variant.hh,
* data/xslt/bison.xsl, data/xslt/xml2dot.xsl, data/xslt/xml2text.xsl,
* data/xslt/xml2xhtml.xsl, data/yacc.c, djgpp/Makefile.maint,
* djgpp/README.in, djgpp/config.bat, djgpp/config.sed,
* djgpp/config.site, djgpp/config_h.sed, djgpp/djunpack.bat,
* djgpp/local.mk, djgpp/subpipe.c, djgpp/subpipe.h,
* djgpp/testsuite.sed, doc/bison.texi, doc/local.mk, doc/refcard.tex,
* etc/README, etc/bench.pl.in, etc/local.mk,
* examples/calc++/calc++.test, examples/calc++/local.mk,
* examples/extexi, examples/local.mk, examples/mfcalc/local.mk,
* examples/mfcalc/mfcalc.test, examples/rpcalc/local.mk,
* examples/rpcalc/rpcalc.test, examples/test, examples/variant.yy,
* lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
* lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
* lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
* lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
* lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
* lib/local.mk, lib/main.c, lib/timevar.c, lib/timevar.def,
* lib/timevar.h, lib/vbitset.c, lib/vbitset.h, lib/yyerror.c,
* m4/bison-i18n.m4, m4/c-working.m4, m4/cxx.m4, m4/flex.m4,
* m4/timevar.m4, src/AnnotationList.c, src/AnnotationList.h,
* src/InadequacyList.c, src/InadequacyList.h, src/LR0.c, src/LR0.h,
* src/Sbitset.c, src/Sbitset.h, src/assoc.c, src/assoc.h,
* src/closure.c, src/closure.h, src/complain.c, src/complain.h,
* src/conflicts.c, src/conflicts.h, src/derives.c, src/derives.h,
* src/files.c, src/files.h, src/flex-scanner.h, src/getargs.c,
* src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c,
* src/graphviz.h, src/ielr.c, src/ielr.h, src/lalr.c, src/lalr.h,
* src/local.mk, src/location.c, src/location.h, src/main.c,
* src/muscle-tab.c, src/muscle-tab.h, src/named-ref.c,
* src/named-ref.h, src/nullable.c, src/nullable.h, src/output.c,
* src/output.h, src/parse-gram.c, src/parse-gram.y, src/print-xml.c,
* src/print-xml.h, src/print.c, src/print.h, src/print_graph.c,
* src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
* src/reduce.h, src/relation.c, src/relation.h, src/scan-code.h,
* src/scan-code.l, src/scan-gram.h, src/scan-gram.l, src/scan-skel.h,
* src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
* src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
* src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
* tests/actions.at, tests/atlocal.in, tests/bison.in, tests/c++.at,
* tests/calc.at, tests/conflicts.at, tests/cxx-type.at,
* tests/existing.at, tests/glr-regression.at, tests/headers.at,
* tests/input.at, tests/java.at, tests/javapush.at, tests/local.at,
* tests/local.mk, tests/named-refs.at, tests/output.at, tests/push.at,
* tests/reduce.at, tests/regression.at, tests/sets.at,
* tests/skeletons.at, tests/synclines.at, tests/testsuite.at,
* tests/torture.at, tests/types.at:
here.
 2014-02-03 15:27:02 +01:00
Akim Demaille
461f1516f8 diagnostics: fix the order of multiple declarations reports 
On

  %token FOO "foo"
  %printer {} "foo"
  %printer {} FOO

we report

  /tmp/foo.yy:2.10-11: error: %printer redeclaration for FOO
   %printer {} "foo"
            ^^
  /tmp/foo.yy:3.10-11:     previous declaration
   %printer {} FOO
            ^^

* src/symtab.c (locations_sort): New.
Use it.
* tests/input.at (Invalid Aliases): Stress the order of diagnostics.
 2013-12-09 16:53:03 +01:00
Akim Demaille
26eb4f0bdc symbol: provide an easy means to compare them in source order 
* src/symtab.c (symbols_sort): New.
(user_token_number_redeclaration): Taken from here.
 2013-12-09 16:03:03 +01:00
Akim Demaille
461983270c output: do not generate source files when late errors are caught 
Reported by Alexandre Duret-Lutz as "second problem" in:
http://lists.gnu.org/archive/html/bug-bison/2013-09/msg00015.html

* bootstrap.conf: We need the "unlink" module.
* src/files.h, src/files.c (unlink_generated_sources): New.
* src/output.c: Use it.
* tests/output.at: Check the case of late errors.
 2013-12-04 15:53:01 +01:00
Akim Demaille
ea99d6e6a0 output: record what generated files are source or report files 
* src/files.h, src/files.c (output_file_name_check): Take an additional
argument to record whether a file is a source or report file.
* src/files.c (generated_file): New.
(file_names, file_names_count): Replace with...
(generated_files, generated_files_size): these.
* src/scan-skel.l: Adjust.
 2013-12-04 15:53:01 +01:00
Akim Demaille
184b42c85b output: do not generate source files when early errors are caught 
Reported by Alexandre Duret-Lutz as "second problem" in:
http://lists.gnu.org/archive/html/bug-bison/2013-09/msg00015.html

One problem is that some errors are caught early, before the
generation of output files, while others can only be detected
afterwards (since, for instance, skeletons can raise errors
themselves).

This will be addressed in two steps: early errors do not generate
source files at all, while later errors will remove the files that
have already been generated.

* src/scan-skel.l (yyout): Open to /dev/null when there are errors.
* tests/output.at (AT_CHECK_FILES): Factored out of...
(AT_CHECK_OUTPUT): this.
Fuse the "SHELLIO" argument in the "FLAGS" one.
Use $5 to denote the expected exit status.
Add a test case for early errors.
 2013-12-04 15:53:01 +01:00
Akim Demaille
d439985436 style: formatting changes 
* src/print-xml.c: here.
 2013-11-26 16:20:55 +01:00
Akim Demaille
21cf80399f reports: display %empty in the generated pointed-rules 
* src/print.c (print_core): Use %empty for empty rules.
* src/print_graph.c (print_core): Ditto.
* tests/conflicts.at, tests/output.at, tests/reduce.at: Adjust
expectations.
 2013-11-26 15:31:52 +01:00
Akim Demaille
a339aef48a style: scope reduction in lalr.cc 
* src/lalr.c: Shorten variable scopes.
(lookahead_tokens_print): Use the same variable name in two loops
iterating over the same structure.
 2013-11-18 10:29:23 +01:00
Akim Demaille
458171e6df aver: it is no longer "protected against NDEBUG" 
Apply the same rules for aver as for assert: no side effects,
especially not important ones.

* src/AnnotationList.c, src/muscle-tab.c: Adjust aver uses to resist
to -DNDEBUG.
 2013-11-12 15:49:10 +01:00
Akim Demaille
8d0b7cef7d parsers: rename YY_NULL as YY_NULLPTR to avoid conflicts with Flex 
Flex also defines YY_NULL (to 0).  Avoid gratuitous conflicts.

* data/c.m4 (b4_null_define): Rename YY_NULL as YY_NULLPTR.

* data/glr.c, data/lalr1.cc, data/location.cc, data/variant.hh,
* data/yacc.c, src/parse-gram.c, tests/actions.at, tests/c++.at,
* tests/cxx-type.at, tests/glr-regression.at, tests/headers.at,
* tests/push.at, tests/regression.at:
Adjust.
 2013-11-08 10:52:15 +01:00
Akim Demaille
516652b474 style: use /* ... */ comments 
* src/complain.c: Here.
 2013-10-24 17:22:21 +02:00
Akim Demaille
265640d56e install: do not install yacc.1 when --disable-yacc 
* configure.ac (ENABLE_YACC): New conditional.
(YACC_SCRIPT, YACC_LIBRARY): Remove.
* lib/local.mk, src/local.mk: Use the former instead of the latter.
* doc/local.mk: Use ENABLE_YACC to avoid installing yacc.1.
 2013-10-22 17:34:22 +02:00
Akim Demaille
ee9cdb8595 style: avoid tabs 
* src/scan-code.l: here.
 2013-10-22 16:43:17 +02:00
Akim Demaille
1a9646fc91 fix: uniqstr are already pointers 
* src/uniqstr.c (uniqstr_assert): Remove incorrect double indirection,
and now useless cast.
 2013-10-22 16:29:22 +02:00
Paul Eggert
67411a88a0 bison: pacify Sun C 5.12 
* src/scan-code.l (show_sub_message):
Redo initializations to work around a bogus Sun C 5.12 warning.
(parse_ref): Remove unreachable code that Sun C 5.12 complains about.
* src/uniqstr.h (uniqstr_vsprintf): Use
_GL_ATTRIBUTE_FORMAT_PRINTF (...)  instead of __attribute__
((__format__ (__printf__, ...))).  Otherwise, Sun C 5.12
complains about an unknown attribute.
 2013-10-21 15:23:43 -07:00
Akim Demaille
071863b3d8 glr: allow spaces between "%?" and "{" in predicates 
Reported by Rici Lake.
http://lists.gnu.org/archive/html/bug-bison/2013-10/msg00004.html
http://stackoverflow.com/questions/19330171/

* src/scan-gram.l: Do not try to be too smart when diagnosing invalid
directives.
* tests/glr-regression.at (Predicates): New test.
 2013-10-16 15:51:25 +02:00
Akim Demaille
e4678430c2 diagnostics: "-Werror -Wno-error=foo" must not emit errors 
Currently "-Werror -Wno-error=foo" still turns "foo" warnings into errors.
Reported by Alexandre Duret-Lutz.
See http://lists.gnu.org/archive/html/bug-bison/2013-09/msg00015.html.

* src/complain.c (errority, errority_flag): New.
(complain_init): Initialize the latter.
(warning_argmatch): Extract the loop iterating on the flag's bits.
Set and unset errority_flag here.
(warnings_argmatch): -Wno-error is not the same as -Wno-error=everything:
we must remember if category foo was explicitly turned in an error/warning
via -W(no-)error=foo.
(warning_severity): Use errority_flag.

* tests/input.at (Symbols): Just check --yacc, not -Wyacc, that's the
job of tests on -W.
(-Werror is not affected by -Wnone and -Wall): Rename as...
(-Werror combinations): this.
Tests more combinations of -W, -W(no-)error, and -W(no-)error=foo.
* tests/local.at (AT_BISON_CHECK_WARNINGS): Don't expect -Werror
to turn runs that issue warnings into runs with errors, as the
warnings might be enforced as warnings by -Wno-error=foo, in which
case -Werror does not change anything.

* doc/bison.texi (Bison Options): Try to be clearer about how
-W(no-)error and -W(no-)error=foo interact.
 2013-10-16 14:56:09 +02:00
Akim Demaille
2b7fe38c36 comment changes 
* src/complain.h, src/complain.c: More documentation, more comments.
 2013-10-16 14:45:27 +02:00
Andreas Schwab
4c4191cec2 location: fix EOF check 
* location.c (location_caret): Use int, not char, for values from
getc.
 2013-10-04 14:00:52 +02:00
Valentin Tolmer
b663fd5322 uniqstr: fix assertion 
* src/uniqstr.c (uniqstr_assert): Really make sure str is a uniqstr,
not just whether some uniqstr with the same content was registered.
 2013-08-01 15:29:21 +02:00
Akim Demaille
a62a7b014c regen 2013-07-25 17:55:32 +02:00
Akim Demaille
8e13c5c03b build: fix a warning from clang 
* src/muscle-tab.c: Declare local functions static.
 2013-06-03 16:40:30 +02:00
Akim Demaille
c0ef22ab0b style: syntax-check fixes 
* data/yacc.c, src/Sbitset.c, src/Sbitset.h, src/muscle-tab.h,
* src/output.c, src/parse-gram.y, src/reader.c, src/symtab.c,
* src/uniqstr.c, src/uniqstr.h: Fix space before parens.
* cfg.mk (_space_before_paren_exempt): Add needed exceptions.
 2013-05-30 14:10:05 +02:00
Akim Demaille
c0efa83c0b fix a memory leak 
* src/print-xml.c (num_escape_bufs): New.
(print_xml): Be sure to release all the escape_bufs.
 2013-05-30 11:07:57 +02:00
Akim Demaille
e37054cf27 regen 2013-05-30 11:07:56 +02:00
Akim Demaille
89ff1b5e71 build: be sure to include config.h first in the generated parser 
Using %code for config.h is wrong, as some headers will already have
been included by Bison.  In some cases, e.g., glibc's string.h, this
results in some declaration not being made for lack of definition of
_GNU_SOURCE, which is performed by config.h.

* src/parse-gram.y: here.
 2013-05-30 10:47:49 +02:00
Petr Machata
30465cb778 drop unused options --raw, -n, -e, --include and -I 
* --raw appears to be ignored.  It was marked as obsolete in the
  commit ec3bc39, and documented as no longer supported as of 1.29
  (2001-09-07).  Support for %raw appears to have been dropped in
  e9955c83 on 2002-06-11, but --raw was kept around.  Maybe it's time
  to drop it as well?

* Commit e9955c83 dropped support for %no-parser as well, and
  converted it to option.  --no-parser was later dropped in 728c4be2
  on 2007-08-12, but -n was kept around, probably as an omission.  All
  three are documented as removed since 2.3b (2008-05-27).

* -e existed for a single day in 2001.  It was introduced in eeeb962b
  on 2001-11-27.  The handling was removed in c7925b99 on 2001-11-28,
  but "e" was kept in the list of short options.  Probably an
  omission.

* --include appears to be dead code.  The option sets a variable, but
  that variable is not used anywhere.  It was added in f6bd5427 on
  2001-11-26 as a %-directive, with comments that it's not yet
  implemented.  It was converted to a command-line option later, but
  doesn't seem to ever have been actually implemented.

Signed-off-by: Petr Machata <pmachata@redhat.com>
Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
 2013-05-29 08:57:31 +02:00
Akim Demaille
f249e803f0 diagnostics: always point to the first directive 
Some directives cannot be used several times (e.g., a given symbol may
only have a single printer).  In case of repeated definitions, an
error is issued for the second definition, yet it is not discarded,
and becomes the definition used for the rest of the file.

This is not consistent with the idea that multiple definitions are not
allowed: discard any repeated directive.

* src/symtab.c (symbol_type_set, symbol_code_props_set)
(semantic_type_code_props_set, symbol_class_set, symbol_translation):
Discard repeated directives.
* tests/input.at (Default %printer and %destructor redeclared)
(Per-type %printer and %destructor redeclared): Update expectations.
 2013-04-22 13:55:00 +02:00
Akim Demaille
d8ce703102 diagnostics: use appropriate location for useless precedence/associativity 
* src/symtab.c (symbol_precedence_set): Use prec_location, not
location (which is the first occurrence of the symbol, possibly just
%token).
Also, as redefinitions are not allowed, keep the first values, not
the subsequent ones.
* tests/conflicts.at, tests/existing.at, tests/regression.at: Adjust.
 2013-04-22 11:36:22 +02:00
Akim Demaille
332019e19a regen 2013-04-18 16:47:41 +02:00
Akim Demaille
9402b62353 parser: do not convert $ and @ in code values of %define variables 
* src/parse-gram.y (value: "{...}"): Just strip the braces, but pass
the value as is.
 2013-04-18 16:37:23 +02:00
Akim Demaille
985d7177e8 parser: no longer use the "braceless" non-terminal 
The purpose of this symbol was only to factor function calls.  As a
result the actions were indeed simpler, but the grammar was somewhat
uselessly obfuscated.  Get rid of this symbol, but introduce functions
to simplify dependencies.

There is no (intended) changes of behavior here.

* src/parse-gram.y (strip_braces, translate_code(
(translate_code_braceless): New.
(braceless): Remove, use "{...}" instead, and one of the previous
functions depending on the context.
(STRING, "%{...%}", EPILOGUE): Declare as <code>, instead of <chars>,
the difference between both is useless (well, I couldn't make sense of
it, even after having read the initial commit that introduced them).
(%union): Remove the now useless "chars" type.
Adjust the printers.
* src/scan-gram.l: Adjust.
 2013-04-18 16:36:58 +02:00
Akim Demaille
7dbadca2d0 regen 2013-04-18 15:12:24 +02:00
Akim Demaille
3f21a394f4 style: avoid %{...%} in our parser 
* src/parse-gram.y (%{...%}): Split in %code and %code requires.
* src/location.h: Add missing includes for self containedness.
 2013-04-18 15:11:53 +02:00
Akim Demaille
827aca04eb style: use %code for local function declarations in our parser 
* src/parse-gram.y (version_check, gram_error, char_name, lloc_default):
Move their prototypes from %{...%} to %code.
(YYLLOC_DEFAULT, YY_LOCATION_PRINT): Move from %{...%} to %code.
(current_lhs): Move its implementation to the epilogue.
 2013-04-18 15:10:35 +02:00
Akim Demaille
ff2e3d397a regen 2013-04-16 18:06:08 +02:00
Akim Demaille
aba47f5624 muscle: check the kind of api.prefix, api.location.type 
* data/bison.m4: Check api.prefix.
* data/c++.m4: Check api.location.type.
* doc/bison.texi: Fix uses of api.value.type, api.prefix, api.location.type.
Document {...} values for %define.
* src/parse-gram.y: Fix use of api.prefix.
* tests/calc.at: Fix uses of api.location.type.
* tests/input.at: Check api.prefix, and api.location.type.
 2013-04-16 17:42:43 +02:00
Akim Demaille
c53b684889 muscle: enforce definition syntax for keyword variables 
* src/muscle-tab.c (muscle_percent_define_get_kind)
(muscle_percent_define_check_kind): New.
(muscle_percent_define_default): Variables with a default value are
of "keyword" kind.
(muscle_percent_define_flag_if, muscle_percent_define_check_values):
Check that the variable is of keyword kind.
* data/bison.m4: Likewise, but in M4.  That is to say...
(b4_percent_define_default): Define the kind when the variable is undefined.
(b4_percent_define_check_kind): Use a better error message.
(_b4_percent_define_check_values, _b4_percent_define_check_values):
Former "enum" variables should be defined using the keyword syntax.
* doc/bison.texi: Update.
A couple of fixes.
* tests/input.at (%define keyword variables): New.
 2013-04-15 10:57:19 +02:00
Akim Demaille
5fad4d4f09 muscle: let -D/-F support the three kinds of %define variable values 
See http://lists.gnu.org/archive/html/bison-patches/2013-04/msg00012.html

* src/getargs.c (getargs): Recognize {value} and "value" for -D and -F.
 2013-04-15 10:57:19 +02:00
Akim Demaille
7956485cd6 muscle: minor refactoring 
* src/muscle-tab.c (muscle_percent_define_default): Reduce the scopes.
 2013-04-15 10:57:05 +02:00