[(yylsp@{b4_subtract([$2], [$1])@})])
-## ------------------ ##
-## Parser variables. ##
-## ------------------ ##
+## -------------- ##
+## Declarations. ##
+## -------------- ##
# b4_declare_scanner_communication_variables
# ------------------------------------------
YYSIZE_T yyes_capacity;]])])
-## --------------------------------------------------------- ##
-## Defining symbol actions, e.g., printers and destructors. ##
-## --------------------------------------------------------- ##
+# b4_declare_yyparse_push_
+# ------------------------
+# Declaration of yyparse (and dependencies) when using the push parser
+# (including in pull mode).
+m4_define([b4_declare_yyparse_push_],
+[[typedef struct ]b4_prefix[pstate ]b4_prefix[pstate;
+enum { YYPUSH_MORE = 4 };
+]b4_pull_if([b4_c_function_decl([b4_prefix[parse]], [[int]], b4_parse_param)
+])b4_c_function_decl([b4_prefix[push_parse]], [[int]],
+ [[b4_prefix[pstate *yyps]], [[yyps]]]b4_pure_if([,
+ [[[int yypushed_char]], [[yypushed_char]]],
+ [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
+ [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
+ b4_parse_param]))
+b4_pull_if([b4_c_function_decl([b4_prefix[pull_parse]], [[int]],
+ [[b4_prefix[pstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
+ b4_parse_param]))])
+b4_c_function_decl([b4_prefix[pstate_new]], [b4_prefix[pstate *]],
+ [[[void]], []])
+b4_c_function_decl([b4_prefix[pstate_delete]], [[void]],
+ [[b4_prefix[pstate *yyps]], [[yyps]]])dnl
+])
+
+# b4_declare_yyparse_
+# -------------------
+# When not the push parser.
+m4_define([b4_declare_yyparse_],
+[[#ifdef YYPARSE_PARAM
+]b4_c_function_decl(b4_prefix[parse], [int],
+ [[void *YYPARSE_PARAM], [YYPARSE_PARAM]])[
+#else /* ! YYPARSE_PARAM */
+]b4_c_function_decl(b4_prefix[parse], [int], b4_parse_param)[
+#endif /* ! YYPARSE_PARAM */]dnl
+])
+
+
+# b4_declare_yyparse
+# ------------------
+m4_define([b4_declare_yyparse],
+[b4_push_if([b4_declare_yyparse_push_],
+ [b4_declare_yyparse_])[]dnl
+])
+
+
+# b4_shared_declarations
+# ----------------------
+# Declaration that might either go into the header (if --defines)
+# or open coded in the parser body.
+m4_define([b4_shared_declarations],
+[b4_cpp_guard_open([b4_spec_defines_file])[
+]b4_declare_yydebug[
+]b4_percent_code_get([[requires]])[
+]b4_token_enums_defines(b4_tokens)[
+]b4_declare_yylstype[
+]b4_declare_yyparse[
+]b4_percent_code_get([[provides]])[
+]b4_cpp_guard_close([b4_spec_defines_file])[]dnl
+])
+
+## -------------- ##
+## Output files. ##
+## -------------- ##
# We do want M4 expansion after # for CPP macros.
m4_changecom()
]b4_identification
b4_percent_code_get([[top]])[]dnl
-m4_if(b4_prefix, [yy], [],
+m4_if(b4_api_prefix, [yy], [],
+[[/* Substitute the type names. */
+#define YYSTYPE ]b4_api_PREFIX[STYPE
+#define YYSTYPE_IS_TRIVIAL ]b4_api_PREFIX[STYPE_IS_TRIVIAL
+#define YYSTYPE_IS_DECLARED ]b4_api_PREFIX[STYPE_IS_DECLARED]b4_locations_if([[
+#define YYLTYPE ]b4_api_PREFIX[LTYPE
+#define YYLTYPE_IS_TRIVIAL ]b4_api_PREFIX[LTYPE_IS_TRIVIAL
+#define YYLTYPE_IS_DECLARED ]b4_api_PREFIX[LTYPE_IS_DECLARED]])])[
+]m4_if(b4_prefix, [yy], [],
[[/* Substitute the variable and function names. */]b4_pull_if([[
#define yyparse ]b4_prefix[parse]])b4_push_if([[
#define yypush_parse ]b4_prefix[push_parse]b4_pull_if([[
#define yylval ]b4_prefix[lval
#define yychar ]b4_prefix[char
#define yydebug ]b4_prefix[debug
-#define yynerrs ]b4_prefix[nerrs
-]b4_locations_if([[#define yylloc ]b4_prefix[lloc]])])[
+#define yynerrs ]b4_prefix[nerrs]b4_locations_if([[
+#define yylloc ]b4_prefix[lloc]])])[
/* Copy the first part of user declarations. */
]b4_user_pre_prologue[
]b4_null_define[
-/* Enabling traces. */
-#ifndef YYDEBUG
-# define YYDEBUG ]b4_parse_trace_if([1], [0])[
-#endif
-
/* Enabling verbose error messages. */
#ifdef YYERROR_VERBOSE
# undef YYERROR_VERBOSE
# define YYERROR_VERBOSE ]b4_error_verbose_if([1], [0])[
#endif
-/* Enabling the token table. */
-#ifndef YYTOKEN_TABLE
-# define YYTOKEN_TABLE ]b4_token_table[
-#endif
-
-]b4_percent_code_get([[requires]])[]dnl
+/* In a future release of Bison, this section will be replaced
+ by #include "@basename(]b4_spec_defines_file[@)". */
+]b4_shared_declarations[
-b4_token_enums_defines(b4_tokens)[
-
-#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
-]m4_ifdef([b4_stype],
-[[typedef union ]b4_union_name[
-{
-]b4_user_stype[
-} YYSTYPE;
-# define YYSTYPE_IS_TRIVIAL 1]],
-[m4_if(b4_tag_seen_flag, 0,
-[[typedef int YYSTYPE;
-# define YYSTYPE_IS_TRIVIAL 1]])])[
-# define yystype YYSTYPE /* obsolescent; will be withdrawn */
-# define YYSTYPE_IS_DECLARED 1
-#endif]b4_locations_if([[
-
-#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
-typedef struct YYLTYPE
-{
- int first_line;
- int first_column;
- int last_line;
- int last_column;
-} YYLTYPE;
-# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
-# define YYLTYPE_IS_DECLARED 1
-# define YYLTYPE_IS_TRIVIAL 1
-#endif]])b4_push_if([[
-
-#ifndef YYPUSH_DECLS
-# define YYPUSH_DECLS
-struct yypstate;
-typedef struct yypstate yypstate;
-enum { YYPUSH_MORE = 4 };
-
-]b4_pull_if([b4_c_function_decl([[yyparse]], [[int]], b4_parse_param)
-])b4_c_function_decl([[yypush_parse]], [[int]],
- [[[yypstate *yyps]], [[yyps]]]b4_pure_if([,
- [[[int yypushed_char]], [[yypushed_char]]],
- [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
- [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
- b4_parse_param]))
-b4_pull_if([b4_c_function_decl([[yypull_parse]], [[int]],
- [[[yypstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
- b4_parse_param]))])
-b4_c_function_decl([[yypstate_new]], [[yypstate *]], [[[void]], []])
-b4_c_function_decl([[yypstate_delete]], [[void]],
- [[[yypstate *yyps]], [[yyps]]])[
-#endif]])
-
-b4_percent_code_get([[provides]])[]dnl
-
-[/* Copy the second part of user declarations. */
+/* Copy the second part of user declarations. */
]b4_user_post_prologue
b4_percent_code_get[]dnl
[YYRLINE[YYN] -- Source line where rule number YYN was defined.])[
#endif
-#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+#if YYDEBUG || YYERROR_VERBOSE || ]b4_token_table_flag[
/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
First, the terminals, then, starting at YYNTOKENS, nonterminals. */
static const char *const yytname[] =
}
#endif /* YYERROR_VERBOSE */
-]b4_yydestruct_generate([b4_c_function_def])b4_push_if([], [[
+]b4_yydestruct_generate([b4_c_function_def])[
-
-/* Prevent warnings from -Wmissing-prototypes. */
-#ifdef YYPARSE_PARAM
-]b4_c_function_decl([yyparse], [int],
- [[void *YYPARSE_PARAM], [YYPARSE_PARAM]])[
-#else /* ! YYPARSE_PARAM */
-]b4_c_function_decl([yyparse], [int], b4_parse_param)[
-#endif /* ! YYPARSE_PARAM */]])b4_pure_if([], [
+]b4_pure_if([], [
b4_declare_scanner_communication_variables])[]b4_push_if([[
-
struct yypstate
{]b4_declare_parser_state_variables[
/* Used to determine if this is the first time this instance has
]b4_epilogue[]dnl
b4_defines_if(
[@output(b4_spec_defines_file@)@
-b4_copyright([Bison interface for Yacc-like parsers in C])dnl
+b4_copyright([Bison interface for Yacc-like parsers in C])[
-b4_percent_code_get([[requires]])[]dnl
-
-b4_token_enums_defines(b4_tokens)
-
-[#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
-]m4_ifdef([b4_stype],
-[[typedef union ]b4_union_name[
-{
-]b4_user_stype[
-} YYSTYPE;
-# define YYSTYPE_IS_TRIVIAL 1]],
-[m4_if(b4_tag_seen_flag, 0,
-[[typedef int YYSTYPE;
-# define YYSTYPE_IS_TRIVIAL 1]])])[
-# define yystype YYSTYPE /* obsolescent; will be withdrawn */
-# define YYSTYPE_IS_DECLARED 1
-#endif
-
-]b4_pure_if([], [[extern YYSTYPE ]b4_prefix[lval;]])
-
-b4_locations_if(
-[#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
-typedef struct YYLTYPE
-{
- int first_line;
- int first_column;
- int last_line;
- int last_column;
-} YYLTYPE;
-# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
-# define YYLTYPE_IS_DECLARED 1
-# define YYLTYPE_IS_TRIVIAL 1
-#endif
-
-]b4_pure_if([], [[extern YYLTYPE ]b4_prefix[lloc;]])
-)dnl b4_locations_if
-b4_push_if([[
-#ifndef YYPUSH_DECLS
-# define YYPUSH_DECLS
-struct ]b4_prefix[pstate;
-typedef struct ]b4_prefix[pstate ]b4_prefix[pstate;
-enum { YYPUSH_MORE = 4 };
-]b4_pull_if([b4_c_function_decl([b4_prefix[parse]], [[int]], b4_parse_param)
-])b4_c_function_decl([b4_prefix[push_parse]], [[int]],
- [[b4_prefix[pstate *yyps]], [[yyps]]]b4_pure_if([,
- [[[int yypushed_char]], [[yypushed_char]]],
- [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
- [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
- b4_parse_param]))
-b4_pull_if([b4_c_function_decl([b4_prefix[pull_parse]], [[int]],
- [[b4_prefix[pstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
- b4_parse_param]))])
-b4_c_function_decl([b4_prefix[pstate_new]], [b4_prefix[pstate *]],
- [[[void]], []])
-b4_c_function_decl([b4_prefix[pstate_delete]], [[void]],
- [[b4_prefix[pstate *yyps]], [[yyps]]])[
-#endif
-]])
-b4_percent_code_get([[provides]])[]dnl
-])dnl b4_defines_if
+]b4_shared_declarations[
+]])dnl b4_defines_if
m4_divert_pop(0)
m4_popdef([b4_copyright_years])
projects / bison.git / blobdiff