X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/5f108727a13ff887f889948b2484724f14c125e9..ff020c3061aeab8a20a4a6fd48c434e3e5aeb29b:/data/yacc.c?ds=sidebyside

diff --git a/data/yacc.c b/data/yacc.c
index 3a679141..7bcbd7ca 100644
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -230,22 +230,27 @@ m4_define([b4_declare_parser_state_variables], [b4_pure_if([[
 # 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;
+[[#ifndef YYPUSH_MORE_DEFINED
+# define YYPUSH_MORE_DEFINED
 enum { YYPUSH_MORE = 4 };
+#endif
+
+typedef struct ]b4_prefix[pstate ]b4_prefix[pstate;
+
 ]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_prefix[pstate *ps]], [[ps]]]b4_pure_if([,
+  [[[int pushed_char]], [[pushed_char]]],
+  [[b4_api_PREFIX[STYPE const *pushed_val]], [[pushed_val]]]b4_locations_if([,
+  [[b4_api_PREFIX[LTYPE const *pushed_loc]], [[pushed_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_prefix[pstate *ps]], [[ps]]]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_prefix[pstate *ps]], [[ps]]])dnl
 ])
 
 # b4_declare_yyparse_
@@ -309,12 +314,8 @@ b4_copyright([Bison implementation for Yacc-like parsers in C],
 b4_percent_code_get([[top]])[]dnl
 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]])])[
+#define YYSTYPE         ]b4_api_PREFIX[STYPE]b4_locations_if([[
+#define YYLTYPE         ]b4_api_PREFIX[LTYPE]])])[
 ]m4_if(b4_prefix, [yy], [],
 [[/* Substitute the variable and function names.  */]b4_pull_if([[
 #define yyparse         ]b4_prefix[parse]])b4_push_if([[
@@ -344,9 +345,11 @@ m4_if(b4_api_prefix, [yy], [],
 # define YYERROR_VERBOSE ]b4_error_verbose_flag[
 #endif
 
-/* In a future release of Bison, this section will be replaced
+]m4_ifval(m4_quote(b4_spec_defines_file),
+[[/* In a future release of Bison, this section will be replaced
    by #include "@basename(]b4_spec_defines_file[@)".  */
-]b4_shared_declarations[
+]])dnl
+b4_shared_declarations[
 
 /* Copy the second part of user declarations.  */
 ]b4_user_post_prologue
@@ -498,8 +501,8 @@ void free (void *); /* INFRINGES ON USER NAME SPACE */
 
 #if (! defined yyoverflow \
      && (! defined __cplusplus \
-	 || (]b4_locations_if([[defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \
-	     && ]])[defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+	 || (]b4_locations_if([[defined ]b4_api_PREFIX[LTYPE_IS_TRIVIAL && ]b4_api_PREFIX[LTYPE_IS_TRIVIAL \
+	     && ]])[defined ]b4_api_PREFIX[STYPE_IS_TRIVIAL && ]b4_api_PREFIX[STYPE_IS_TRIVIAL)))
 
 /* A type that is properly aligned for any stack member.  */
 union yyalloc
@@ -744,31 +747,9 @@ while (YYID (0))
 #define YYTERROR	1
 #define YYERRCODE	256
 
-
-/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
-   If N is 0, then set CURRENT to the empty location which ends
-   the previous symbol: RHS[0] (always defined).  */
-
+]b4_yylloc_default_define[
 #define YYRHSLOC(Rhs, K) ((Rhs)[K])
-#ifndef YYLLOC_DEFAULT
-# define YYLLOC_DEFAULT(Current, Rhs, N)				\
-    do									\
-      if (YYID (N))                                                    \
-	{								\
-	  (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;	\
-	  (Current).first_column = YYRHSLOC (Rhs, 1).first_column;	\
-	  (Current).last_line    = YYRHSLOC (Rhs, N).last_line;		\
-	  (Current).last_column  = YYRHSLOC (Rhs, N).last_column;	\
-	}								\
-      else								\
-	{								\
-	  (Current).first_line   = (Current).last_line   =		\
-	    YYRHSLOC (Rhs, 0).last_line;				\
-	  (Current).first_column = (Current).last_column =		\
-	    YYRHSLOC (Rhs, 0).last_column;				\
-	}								\
-    while (YYID (0))
-#endif]b4_locations_if([[
+]b4_locations_if([[
 
 
 /* YY_LOCATION_PRINT -- Print the location on the stream.
@@ -776,7 +757,7 @@ while (YYID (0))
    we won't break user code: when these are the locations we know.  */
 
 #ifndef YY_LOCATION_PRINT
-# if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
+# if defined ]b4_api_PREFIX[LTYPE_IS_TRIVIAL && ]b4_api_PREFIX[LTYPE_IS_TRIVIAL
 #  define YY_LOCATION_PRINT(File, Loc)			\
      fprintf (File, "%d.%d-%d.%d",			\
 	      (Loc).first_line, (Loc).first_column,	\
@@ -1534,7 +1515,7 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
   int yyn;
   int yyresult;
   /* Lookahead token as an internal (translated) token number.  */
-  int yytoken;
+  int yytoken = 0;
   /* The variables used to return semantic value and location from the
      action routines.  */
   YYSTYPE yyval;]b4_locations_if([[
@@ -1559,7 +1540,6 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
       goto yyread_pushed_token;
     }]])[
 
-  yytoken = 0;
   yyss = yyssa;
   yyvs = yyvsa;]b4_locations_if([[
   yyls = yylsa;]])[
@@ -1585,23 +1565,22 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
   yyvsp = yyvs;]b4_locations_if([[
   yylsp = yyls;
 
-#if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
+#if defined ]b4_api_PREFIX[LTYPE_IS_TRIVIAL && ]b4_api_PREFIX[LTYPE_IS_TRIVIAL
   /* Initialize the default location before parsing starts.  */
   yylloc.first_line   = yylloc.last_line   = ]b4_location_initial_line[;
   yylloc.first_column = yylloc.last_column = ]b4_location_initial_column[;
 #endif]])
 m4_ifdef([b4_initial_action],[
-m4_pushdef([b4_at_dollar],     [m4_define([b4_at_dollar_used])yylloc])dnl
-m4_pushdef([b4_dollar_dollar], [m4_define([b4_dollar_dollar_used])yylval])dnl
+b4_dollar_pushdef([m4_define([b4_dollar_dollar_used])yylval], [],
+                  [m4_define([b4_at_dollar_used])yylloc])dnl
 /* User initialization code.  */
 b4_user_initial_action
-m4_popdef([b4_dollar_dollar])dnl
-m4_popdef([b4_at_dollar])])dnl
+b4_dollar_popdef[]dnl
 m4_ifdef([b4_dollar_dollar_used],[[  yyvsp[0] = yylval;
 ]])dnl
 m4_ifdef([b4_at_dollar_used], [[  yylsp[0] = yylloc;
-]])[
-  goto yysetstate;
+]])])dnl
+[  goto yysetstate;
 
 /*------------------------------------------------------------.
 | yynewstate -- Push a new state, which is found in yystate.  |
@@ -2067,7 +2046,7 @@ yypushreturn:]])[
 }
 
 
-]b4_epilogue
+]b4_epilogue[]dnl
 b4_defines_if(
 [@output(b4_spec_defines_file@)@
 b4_copyright([Bison interface for Yacc-like parsers in C],