* doc/bison.texinfo (-g, -x): Add space before argument.
(Option Cross Key): Implement FIXME: listing directives also.
* build-aux/cross-options.pl: Read from <STDIN> rather than <>.
(Short Option): Special case -d. Put arguments inside @option.
(Bison Directive): Add column, automatically extracted from
src/scan-gram.l (actual name passed as the first argument)
with special case for %define.
* doc/local.mk (doc/cross-options.texi): Pass src/scan-gram.l
to build-aux/cross-options.pl.
* src/getargs.c (usage): Document limitations of cross-options.pl.
* src/scan-gram.l: Likewise.
* doc/bison.texinfo: Synchronize ``Detail Node Listing''.
Align menus. Adjust word wrapping. Use node names for menu names.
(Examples): Don't abbreviate node names.
(LocalWords): Remove abbreviations.
(Copying): Make description a sentence.
(Java Action Features): Remove period to match the rest of menu.
* src/Makefile.am: Rename as...
* src/local.mk: this.
Prefix all the paths with src/.
(AUTOMAKE_OPTIONS): Build object files in the sub dirs.
(AM_CPPFLAGS): Find find in builddir/src.
(YACC): Move the flags into...
(AM_YFLAGS): here.
* maint.mk (sc_tight_scope): Disable.
It used to bounce to the version in src/Makefile.am which is now
part of this very Makefile.
* Makefile.am, configure.ac: Adjust.
* src/scan-code-c.c, src/scan-code.l: We can no longer rely on
include "..." to find files "here": we are no longer in src/, so
qualify the includes with src/.
* doc/Makefile.am (PREPATH): No longer include the top_builddir
prefix.
(.x.1): Adjust to be able to create src/foo from the top level
Makefile, instead of going bounce to src/Makefile the creation of
foo.
* NEWS: Document them.
General Java skeleton improvements.
* configure.ac (gt_JAVACOMP): Request target of 1.4, which allows
using gcj < 4.3 in the testsuite, according to comments in
gnulib/m4/javacomp.m4.
* data/java.m4 (stype, parser_class_name, lex_throws, throws,
location_type, position_type): Remove extraneous brackets from
b4_percent_define_default.
(b4_lex_param, b4_parse_param): Remove extraneous brackets from
m4_define and m4_define_default.
* data/lalr1.java (b4_pre_prologue): Change to b4_user_post_prologue,
which marks the end of user code with appropriate syncline, like all
the other skeletons.
(b4_user_post_prologue): Add. Don't silently drop.
(yylex): Remove.
(parse): Inline yylex.
* doc/bison.texinfo (bisonVersion, bisonSkeleton): Document.
(%{...%}): Fix typo of %code imports.
* tests/java.at (AT_JAVA_COMPILE): Add "java" keyword.
Support annotations on parser class with %define annotations.
* data/lalr1.java (annotations): Add to parser class modifier.
* doc/bison.texinfo (Java Parser Interface): Document
%define annotations.
(Java Declarations Summary): Document %define annotations.
* tests/java.at (Java parser class modifiers): Test annotations.
Do not generate code for %error-verbose unless requested.
* data/lalr1.java (errorVerbose): Rename to yyErrorVerbose.
Make private. Make conditional on %error-verbose.
(getErrorVerbose, setErrorVerbose): New.
(yytnamerr_): Make conditional on %error-verbose.
(yysyntax_error): Make some code conditional on %error-verbose.
* doc/bison.texinfo (Java Bison Interface): Remove the parts
about %error-verbose having no effect.
(getErrorVerbose, setErrorVerbose): Document.
Move constants for token names to Lexer interface.
* data/lalr1.java (Lexer): Move EOF, b4_token_enums(b4_tokens) here.
* data/java.m4 (b4_token_enum): Indent for move to Lexer interface.
(parse): Qualify EOF to Lexer.EOF.
* doc/bison.texinfo (Java Parser Interface): Move documentation of
EOF and token names to Java Lexer Interface.
* tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove Calc qualifier.
Make yyerror public.
* data/lalr1.java (Lexer.yyerror): Use longer parameter name.
(yyerror): Change to public. Add Javadoc comments. Use longer
parameter names. Make the body rather than the declarator
conditional on %locations.
* doc/bison.texinfo (yyerror): Document. Don't mark as protected.
Allow user to add code to the constructor with %code init.
* data/java.m4 (b4_init_throws): New, for %define init_throws.
* data/lalr1.java (YYParser.YYParser): Add b4_init_throws.
Add %code init to the front of the constructor body.
* doc/bison.texinfo (YYParser.YYParser): Document %code init
and %define init_throws.
(Java Declarations Summary): Document %code init and
%define init_throws.
* tests/java.at (Java %parse-param and %lex-param): Adjust grep.
(Java constructor init and init_throws): Add tests.
Unfortunately it is not possible to reuse the %prec directive. This
is because to please POSIX, we do not require to end the rules with a
semicolon. As a result,
foo: bar %prec baz
is ambiguous: either a rule which precedence is that of baz, or a rule,
and then a declaration of the precedence of the token baz.
* doc/bison.texinfo: Document %precedence.
(Precedence Only): New.
* src/assoc.h, src/assoc.c (precedence_assoc): New.
* src/conflicts.c (resolve_sr_conflict): Support it.
* src/scan-gram.l, src/parse-gram.y (%precedence): New token.
Parse it.
* tests/calc.at: Use %precedence for NEG.
* tests/conflicts.at (%precedence does not suffice)
(%precedence suffices): New tests.
* doc/bison.texinfo (calc++.cc): Propagate failures to the exit
status.
* examples/calc++/test ($me, $number, $exit, run): New.
Use them to propagate errors to the exit status.
We're thinking of extending it's effect on output file naming. See the
thread at
<http://lists.gnu.org/archive/html/bison-patches/2008-10/msg00003.html>.
* NEWS: Say it's experimental.
* doc/bison.texinfo (Decl Summary): Say it's experimental, and so don't
recommend it over %skeleton for now.
(Bison Options): Likewise.
(C++ Bison Interface): Use %skeleton not %language.
(Calc++ Parser): Use %skeleton not %language.
* src/getargs.c (usage): Say it's experimental.
2008-11-01 Di-an Jan <dianj@freeshell.org>
Paolo Bonzini <bonzini@gnu.org>
Support all Java parser class modifiers.
* data/java.m4 (b4_percent_define_get3): New.
(b4_final_if, b4_strictfp_if): New.
* data/lalr1.java (final, strictfp, extends, implements): Support.
* doc/bison.texinfo (final, strictfp, extends, implements): Add
documentation.
* tests/java.at (AT_CHECK_JAVA_MINIMAL): New.
(AT_CHECK_JAVA_MINIMAL_W_LEXER): New.
(AT_CHECK_JAVA_GREP): New.
(Java parser class modifiers): New test.
(Java parser class extends and implements): New test.
Model exception propagation better with throws and lex_throws.
* data/java.m4 (b4_list2): New.
(throws): Change default.
* data/lalr1.java (yyaction): Add throws.
(parse): Add lex_throws in addition to throws.
* doc/bison.texinfo (throws, lex_throws): Add documentation.
* tests/java.at (Java throws specifications): New test.
Improve documentation for Java parsers.
* doc/bison.texinfo (Java Parsers): Add subsections.
Don't quote first argument of %define.
(Java Bison Interface): Document output files. Move documentation
of parser class and merge into Java Parser Interface. Document
features that error out. Document directives with no effect.
Move note about Javadoc higher.
(Java Semantic Values): Explicitly mention stype.
Document that generic types cannot be used.
(Java Location Values): Use @deftypeivar. Document constructors.
Correct return value for toString.
(Java Parser Interface): List undocumented constants/fields.
Move documentation of fields added by %parse-param closer to list
of members. Document that token names are added as fields.
Document constructors accurately. Remove error method.
(Java Scanner Interface): Move note on %pure-parser to Java Bison
Interface. Describe %code lexer and yylex accutately.
Remove documentation that does not match the code.
(Java Action Features): New.
(Java Differences): Add reference. Add item on semantic values.
Add note about @{ ... @}. Clarify %% epilogue placement.
(Java Declarations Summary): New.
Fix Java skeleton.
* data/java.m4 (b4_prefix): Correct quoting for m4_define_default.
(b4_remove_comma): Quote test argument.
* tests/java.at (Java parser class and package names): New test.
(Java %parse-param and %lex-param): New test.
(Java stype, position_class and location_class): New test.
* ChangeLog: For the sake of people still using CVS, don't use dollars
when mentioning Id.
* data/xslt/bison.xsl: Remove Id from header comments, where it was
unusual anyway.
* data/xslt/xml2dot.xsl: Likewise.
* data/xslt/xml2text.xsl: Likewise.
* data/xslt/xml2xhtml.xsl: Likewise.
* doc/Doxyfile.in (PROJECT_NUMBER): Don't use ID.
* doc/Makefile.am (neutralize): Remove, no longer needed.
(.x.1): Don't use neutralize.
(edit): Don't substitute for ID.
(Doxyfile): Don't define Id, and thus don't depend on ChangeLog.
* doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
$(top_srcdir)/configure.ac so that changes to computed variables, such
as PACKAGE_VERSION, are seen.
* tests/Makefile.am ($(srcdir)/package.m4): Likewise.
* .cvsignore (.tarball-version, GNUmakefile, *~): Add.
* .gitignore (/.tarball-version, /GNUmakefile, /*~): Add.
* .prev-version: New.
* .version.in: Remove.
* ChangeLog: Remove the $Id$ previously used for capturing the CVS
revision.
* GNUmakefile: Remove, now copied from Gnulib.
* Makefile.am: Add code suggested by comments in
build-aux/git-version-gen.
(EXTRA_DIST): Remove GNUmakefile, handled by Gnulib. Add maint.mk,
.prev-version, and .version.
* NEWS (2.3b+): Rename to...
(?.?): ... this because we're dropping the "+" version naming scheme,
but, in general, we still can't be sure of our next release name.
* bootstrap: Add a quick hack to remove from .gitignore the
GNUmakefile entry that gnulib adds. We already have a /GNUmakefile
entry. This should really be fixed in gnulib instead.
* bootstrap.conf (gnulib_modules): Add gnumakefile.
* configure.ac (AC_INIT): Set version name by invoking
build-aux/git-version-gen.
(AC_CONFIG_FILES): Remove .version, now generated by
build-aux/git-version-gen.
* maint.mk: New, copied from coreutils.
* doc/.cvsignore (bison.1): Add.
* doc/.gitignore (/bison.1): Add.
* doc/bison.1: Remove, generated.
* src/.cvsignore (revision.c): Remove.
* src/.gitignore (/revision.c): Remove.
* src/Makefile.am (bison_SOURCES): Remove revision.c and revision.h.
(BUILT_SOURCES): Remove revision.c.
(revision.c): Remove.
* src/getargs.c (version): Don't print revision after the VERSION.
* src/revision.h: Remove.
Reported by Eric Blake at
<http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>.
* bootstrap.conf (gnulib_modules): Add unsetenv.
* lib/.gitignore, lib/.cvsignore (/unsetenv.c): Add.
* m4/.gitignore, m4/.cvsignore (/environ.m4): Add.
(/setenv.m4): Add.
* src/output.c (output_skeleton): For the m4 invocation, pass -dV as
the first argument because it may become position-dependent, and unset
POSIXLY_CORRECT so Bison's skeletons have access to GNU M4 extensions.
Add comments explaining these issues in more detail.
* doc/bison.texinfo (Bison Options): Reword -W entry a little for
consistency. Update the -g and -x entries now that they take
arguments. Use brackets to indicate optional arguments.
* src/getargs.c (usage): Explain the relationship between arguments of
long and short options more completely. Document --defines and -d
separately since the former takes an argument but, for POSIX Yacc, the
latter does not.
(short_options): Let -W take an optional argument like --warnings.
(getargs): Sort cases.
say its interface is experimental.
* doc/bison.texinfo (Decl Summary): In the %language entry, mention
Java.
(Bison Options): In the -L and --language entry, mention Java.
(Java Bison Interface): Say the interface is experimental.
* src/getargs.c (usage): Mention -L and --language.
* NEWS (2.3a+): Say the push parsing interface is experimental.
* doc/bison.texinfo (Push Decl): Likewise.
(Decl Summary): Likewise in the "%define api.push_pull" entry.
(Push Parser Function): Likewise.
(Pull Parser Function): Likewise.
(Parser Create Function): Likewise.
(Parser Delete Function): Likewise.
(Table of Symbols): Likewise in the yypstate_delete, yypstate_new,
yypull_parse, and yypush_parse entries.
* NEWS (2.3a+): Mention XML support, and say the schema is
experimental.
* doc/bison.texinfo (Bison Options): Mention -x and --xml.
* src/getargs.c (usage): Say the XML schema is experimental.
* NEWS (2.3a+): Say option instead of flag.
<http://lists.gnu.org/archive/html/help-bison/2008-02/msg00023.html>.
* data/yacc.c: Clean up whitespace in the output a little.
(yypstate_allocated): Define for impure push parsers regardless of
whether the pull interface is also requested.
* tests/push.at (Push Parsing: Multiple impure instances): Extend to
check impure push parsers without the pull interface.
* data/yacc.c (yypstate_new): Don't try to invoke yyerror since
yyerror takes arguments specified by %parse-param while yypstate_new
does not.
* doc/bison.texinfo (Parser Create Function): Document that
yypstate_new returns 0 for multiple impure parser instances.
* tests/push.at (Push Parsing: Multiple impure instances): Update
expected stderr output.
<http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00013.html>.
* NEWS (2.3a+): Mention removal of --no-parser, -n, and %no-parser.
* doc/bison.texinfo (Token Decl): Token numbers are *nonnegative*
integers. Explain the effect of literal string aliases on error
messages. Copy token 0 documentation from the C++ skeleton
documentation.
conformance. Reported by Tim Josling at
<http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00010.html>.
* NEWS (2.3a+): Mention.
* doc/bison.texinfo (Precedence Decl): Describe how literal strings
and code numbers are treated by precedence declarations.
* src/parse-gram.y (precedence_declaration): Use symbols.prec instead
of symbols.1.
(symbols.prec): New, just like symbols.1 but uses symbol.prec instead
of symbol.
(symbol.prec): New, just like symbol but allows INT.
* src/symtab.c (symbol_user_token_number_set): Remove an aver that no
longer holds.
* tests/regression.at (Token number in precedence declaration): New
test case.
useful ones and add a "usefulness" attribute. Discussed starting at
<http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>.
* src/gram.c (grammar_rules_partial_print_xml): Remove.
(grammar_rules_print_xml): Print all rules instead of just those
useful in the grammar, and add a "usefulness" attribute.
* src/gram.h (grammar_rules_partial_print_xml): Remove prototype.
* src/print-xml.c (print_rules_useless_in_parser): Remove.
(print_grammar): Print all nonterminals instead of just useful ones,
and add a "usefulness" attribute to nonterminals and terminals.
(print_xml): Don't print a separate "reductions" or
"rules-useless-in-parser" element.
* src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar.
(reduce_xml): Remove.
(reduce_token_unused_in_grammar): New.
(reduce_nonterminal_useless_in_grammar): New.
* src/reduce.h (reduce_xml): Remove prototype.
(reduce_token_unused_in_grammar): Add prototype.
(reduce_nonterminal_useless_in_grammar): Add prototype.
* data/xslt/xml2text.xsl: Update for XML changes.
* data/xslt/xml2xhtml.xsl: Update for XML changes.
* tests/reduce.at (Useless Terminals): Update output.
(Useless Rules): Update output.
(Reduced Automaton): Update output.
Say "Terminals unused in grammar" instead of "Unused terminals".
* NEWS (2.3a+): Update.
* doc/bison.texinfo (Understanding): Update example output.
* src/reduce.c (reduce_output): Implement.
* data/xslt/xml2text.xsl: Implement.
* data/xslt/xml2xhtml.xsl: Implement.
* NEWS (2.3a+): Mention.
* doc/bison.texinfo (Bison Options): Add an entry.
* src/files.c (compute_output_file_names): Don't override
spec_verbose_file if already set.
* src/getargs.c (usage): Document --report-file.
(REPORT_FILE_OPTION): New anonymous enum member.
(long_options): Add entry for it.
(getargs): Add case for it setting spec_verbose_file.
* build-aux/cross-options.pl: Don't record a short option just because
there's an arg.
* doc/.cvsignore: Add yacc.1.
* configure.ac, doc/Makefile.am: Adjust.
* configure.ac (PACKAGE_COPYRIGHT_YEAR): New substitution, and new
config.h symbol.
Use AC_SUBST for assignments too.
* src/getargs.c (version): Use PACKAGE_COPYRIGHT_YEAR.
When reporting useless rules and nonterminals, say "useless in grammar"
instead of "useless", and say "useless in parser" instead of "never
reduced". Discussed starting at
<http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00033.html>.
* NEWS (2.3a+): Mention this change.
* data/xslt/xml2text.xsl: Update output text and expected input XML
element names to match changes below.
* data/xslt/xml2xhtml.xsl: Likewise.
(xsl:template match="bison-xml-report"): Add missing entry in Table of
Contents: "Rules useless in parser due to conflicts".
* doc/bison.texinfo (Decl Summary): Reword a little.
(Understanding): Update example output for changes below.
* src/gram.c: (rule_useful_p): Rename to...
(rule_useful_in_grammar_p): ... this.
(rule_useless_p): Rename to...
(rule_useless_in_grammar_p): ... this.
(rule_never_reduced_p): Rename to...
(rule_useless_in_parser_p): ... this.
(grammar_rules_print): Update for renames.
(grammar_rules_print_xml): Update for renames.
(grammar_rules_never_reduced_report): Rename to...
(grammar_rules_useless_report): ... this since it is used for either
kind of useless rule.
* src/gram.h: Reword comments and update function names in prototypes.
* src/main.c (main): Say "rule useless in parser due to conflicts".
* src/print-xml.c (print_rules_never_reduced): Rename to...
(print_rules_useless_in_parser): ... this, and rename output XML
element "rules-never-reduced" to "rules-useless-in-parser".
(print_xml): Update for rename.
* src/print.c (print_results): Say "Rules useless in parser due to
conflicts".
* src/reduce.c (reduce_grammar_tables): Say "rule useless in grammar".
(nonterminals_reduce): Say "nonterminal useless in grammar".
(reduce_output): Say "Nonterminals useless in grammar".
Say "Rules useless in grammar".
(reduce_xml): Rename output XML element "useless" to
"useless-in-grammar".
(reduce_print): Don't report the count of grammatically useless rules
as "rules never reduced" just because %yacc is specified.
In the correct report of this count, say nonterminal(s) and rule(s)
"useless in grammar".
* tests/conflicts.at (S/R in initial): Update expected output.
(Defaulted Conflicted Reduction): Likewise.
(Unreachable States After Conflict Resolution): Likewise.
* tests/existing.at (GNU pic Grammar): Likewise.
* tests/reduce.at (Useless Nonterminals): Likewise.
(Useless Rules): Likewise.
(Reduced Automaton): Likewise.
(Underivable Rules): Likewise.
(Empty Language): Likewise.
here document and before the EOF so that BSD's implementation of Bourne
shell doesn't parse the delimiter as part of the here document.
* doc/.cvsignore: Add cross-options.texi.
* src/getargs.c (usage): Add a blank line after the warning categories.
* doc/Makefile.am (remove_time_stamp): Include the sed invocation.
(perl -0777 -pi -e 's/.PPnId): New.
(.x.1): Use it to ignore the version control revision.
* doc/common.x, doc/bison.x: New.
* doc/Makefile.am (bison.1, .x.1): New.
The code is taken from autoconf-2.61/man/Makefile.am.
* configure.ac: Look for help2man.
at
<http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00006.html>.
* NEWS (2.3a+): Mention.
* data/bison.m4 (b4_pure_if): Don't define it here.
* data/c.m4 (b4_identification): Depend on individual skeletons to
define b4_pure_flag, b4_push_flag, or b4_pull_flag if they use the
values of the %define variables api.pure or api.push_pull. Define
YYPURE, YYPUSH, and YYPULL accordingly.
* data/glr.c: Define b4_pure_if based on `%define api.pure' unless
glr.cc has already defined b4_pure_flag.
* data/push.c: Define b4_pure_if based on `%define api.pure'.
Remove YYPUSH and YYPULL since they're back in b4_identification again.
* data/yacc.c Define b4_pure_if based on `%define api.pure'.
* doc/bison.texinfo (Pure Decl): Update.
(Push Decl): Update.
(Decl Summary): Add api.pure to %define entry.
In %pure-parser entry, say it's deprecated and reference %define.
(Pure Calling): Update.
(Error Reporting): Update.
(C++ Scanner Interface): Update.
(How Can I Reset the Parser): Update.
(Table of Symbols): In %pure-parser entry, say it's deprecated and
reference %define.
* src/getargs.c (pure_parser): Remove global variable.
* src/getargs.h (pure_parser): Remove extern.
* src/output.c (prepare): Don't define pure_flag muscle.
* src/parse-gram.y (prologue_declaration): Implement %pure-parser as a
wrapper around `%define api.pure'.
* tests/calc.at (Simple LALR Calculator): Update.
(Simple GLR Calculator): Update.
* tests/cxx-type.at (GLR: Resolve ambiguity, pure, no locations):
Update.
(GLR: Resolve ambiguity, pure, locations): Update.
(GLR: Merge conflicting parses, pure, no locations): Update.
(GLR: Merge conflicting parses, pure, locations): Update.
* tests/glr-regression.at (Uninitialized location when reporting
ambiguity): Update
* tests/input.at (Unused %define api.pure): New test case.
* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Update definition for
AT_PURE_IF and AT_PURE_AND_LOC_IF.
* tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
* NEWS (2.3a+): Mention it in the entry for unreachable state removal.
* doc/bison.texinfo (Decl Summary): Mention it in the %define entry.
* src/main.c (main): Implement it.
* tests/conflicts.at (Unreachable States After Conflict Resolution):
Extend to test it, and fix a typo.
* doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
the example .output text.
* tests/regression.at (Extra lookahead sets in report): Improve wording
of comments.
(Option Cross Key): Likewise.
* src/print-xml.c (print_core): Don't print a reduction's lookahead set
next to an item whose dot is not at the end of the RHS even if it
happens to be associated with the same rule.
* src/print.c (print_core): Likewise.
* tests/conflicts.at (Unresolved SR Conflicts): Update output.
(Resolved SR Conflicts): Update output.
* tests/regression.at (Extra lookahead sets in report): New test case.
<http://lists.gnu.org/archive/html/help-bison/2007-09/msg00016.html>.
* data/c++.m4: (b4_namespace_ref, b4_namespace_open,
b4_namespace_close): New macros that interpret the %define variable
"namespace" so its value can contain "::" to indicate nested
namespaces.
* data/glr.cc (b4_namespace): Don't define, and replace all uses with
the above macros.
* data/lalr1.cc (b4_namespace): Likewise.
* data/location.cc (b4_namespace): Likewise.
* doc/bison.texinfo (Decl Summary): Move `%define push_pull' entry
inside a new table in the general %define entry. Document `%define
namespace' there as well. Point the %name-prefix entry to it since it
explains it more completely in the case of C++.
(C++ Bison Interface): Mention `%define namespace' instead of
%name-prefix.
(Table of Symbols): Remove the `%define push_pull' entry. The %define
entry suffices.
* tests/c++.at (Relative namespace references): New test case.
(Absolute namespace references): New test case.
(Syntactically invalid namespace references): New test case.
* tests/input.at (C++ namespace reference errors): New test case.
`%define push_pull "push"' and `%define push_pull "both"'.
`%define push_pull "pull"' is the default.
* doc/bison.texinfo (Push Decl, Push Parser Function,
Pull Parser Function, Parser Create Function, Parser Delete Function):
Update declarations.
(Decl Summary, Table of Symbols): Replace %push-parser and
%push-pull-parser entries with a %define push_pull entry.
* data/bison.m4 (b4_percent_define_check_values): New macro.
(b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
definitions...
* data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
definitions...
* data/push.c: ... to here and compute them from the value of the
%define variable push_pull.
* data/c-skel.m4: Instead of choosing the push.c skeleton for push
parsing requests here...
* data/yacc.c: ... hack this to switch to push.c any time
b4_use_push_pull_flag or the %define variable push_pull is set. This
will go away when we mv push.c yacc.c.
* data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
push parsing is not supported since unused %define variables are
reported anyway.
* src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
* src/muscle_tab.h (muscle_percent_define_check_values): Update
comments for consistency with b4_percent_define_check_values.
* src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
muscles.
* src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
Remove.
(prologue_declaration): Remove %push-parser and %push-pull-parser
rules.
* src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
* tests/calc.at: Update declarations.
* tests/input.at (%define enum variables): New test case.
* tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
declaration.
(Push Parsing: Multiple impure instances): Update declaration.
(Push Parsing: Unsupported Skeletons): New test case.
* tests/torture.at (Exploding the Stack Size with Alloca): Update
declaration.
(Exploding the Stack Size with Malloc): Update declaration.
