c++: do not export YYTOKEN_TABLE and YYERROR_VERBOSE.

* src/output.c (prepare_symbols): Do not define b4_token_table.
(prepare): Define b4_token_table_flag.
* data/bison.m4 (b4_token_table_if): New.
Arm it when error-verbose.
* data/glr.c, data/yacc.c (YYTOKEN_TABLE): Remove.
Use m4.
* data/lalr1.cc: Likewise.
(YYERROR_VERBOSE): Remove.
* NEWS, doc/bison.texi: Document this.
This commit is contained in:
Akim Demaille
2012-06-25 16:52:30 +02:00
parent 9bcffa0c13
commit 258cddbc36
7 changed files with 42 additions and 55 deletions

View File

@@ -62,19 +62,6 @@ b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++],
# define YYDEBUG ]b4_debug_flag[
#endif
/* Enabling verbose error messages. */
#ifdef YYERROR_VERBOSE
# undef YYERROR_VERBOSE
# define YYERROR_VERBOSE 1
#else
# define YYERROR_VERBOSE ]b4_error_verbose_flag[
#endif
/* Enabling the token table. */
#ifndef YYTOKEN_TABLE
# define YYTOKEN_TABLE ]b4_token_table[
#endif
]b4_namespace_open[
/// A Bison parser.
@@ -211,17 +198,15 @@ b4_user_stype
/// For a rule, its LHS.
static const ]b4_int_type_for([b4_r1])[ yyr1_[];
/// For a rule, its RHS length.
static const ]b4_int_type_for([b4_r2])[ yyr2_[];
#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
/// For a symbol, its name in clear.
static const char* const yytname_[];
#endif]b4_error_verbose_if([
static const ]b4_int_type_for([b4_r2])[ yyr2_[]; ]b4_error_verbose_if([
/// Convert the symbol name \a n to a form suitable for a diagnostic.
static std::string yytnamerr_ (const char *n);])[
#if YYDEBUG
]b4_token_table_if([], [[#if YYDEBUG]])[
/// For a symbol, its name in clear.
static const char* const yytname_[];
]b4_token_table_if([[#if YYDEBUG]])[
/// A type to store symbol numbers and -1.
typedef ]b4_int_type_for([b4_rhs])[ rhs_number_type;
/// A `-1'-separated list of the rules' RHS.
@@ -1051,7 +1036,7 @@ b4_error_verbose_if([int yystate, int yytoken],
]b4_r2[
};
#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
]b4_token_table_if([], [[#if YYDEBUG]])[
/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
First, the terminals, then, starting at \a yyntokens_, nonterminals. */
const char*
@@ -1059,9 +1044,8 @@ b4_error_verbose_if([int yystate, int yytoken],
{
]b4_tname[
};
#endif
#if YYDEBUG
]b4_token_table_if([[#if YYDEBUG]])[
/* YYRHS -- A `-1'-separated list of the rules' RHS. */
const ]b4_parser_class_name[::rhs_number_type
]b4_parser_class_name[::yyrhs_[] =