c++: comment changes

[bison.git] / data / yacc.c

diff --git a/data/yacc.c b/data/yacc.c
index d15f150ab284d28f272db5cfd231b8f13a097a13..b64ccdf690be779d2435492ac9e9a7f82a6af5fa 100644 (file)
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -67,25 +67,37 @@ m4_define_default([b4_stack_depth_init],  [200])
 ## ------------------------ ##
 
 b4_percent_define_default([[api.pure]], [[false]])
 ## ------------------------ ##
 
 b4_percent_define_default([[api.pure]], [[false]])

-b4_define_flag_if([pure])
-m4_define([b4_pure_flag],
-          [b4_percent_define_flag_if([[api.pure]], [[1]], [[0]])])
-
-# b4_yacc_pure_if(IF-TRUE, IF-FALSE)
-# ----------------------------------
-# Expand IF-TRUE, if %pure-parser and %parse-param, IF-FALSE otherwise.
-m4_define([b4_yacc_pure_if],
-[b4_pure_if([m4_ifset([b4_parse_param],
-                      [$1], [$2])],
-            [$2])])
-
+b4_percent_define_check_values([[[[api.pure]],
+                                 [[false]], [[true]], [[]], [[full]]]])
+
+m4_define([b4_pure_flag], [[0]])
+m4_case(b4_percent_define_get([[api.pure]]),
+        [false], [m4_define([b4_pure_flag], [[0]])],
+        [true],  [m4_define([b4_pure_flag], [[1]])],
+        [],      [m4_define([b4_pure_flag], [[1]])],
+        [full],  [m4_define([b4_pure_flag], [[2]])])
+
+m4_define([b4_pure_if],
+[m4_case(b4_pure_flag,
+         [0], [$2],
+         [1], [$1],
+         [2], [$1])])
+         [m4_fatal([invalid api.pure value: ]$1)])])
+
+# b4_yyerror_arg_loc_if(ARG)
+# --------------------------
+# Expand ARG iff yyerror is to be given a location as argument.
+m4_define([b4_yyerror_arg_loc_if],
+[b4_locations_if([m4_case(b4_pure_flag,
+                          [1], [m4_ifset([b4_parse_param], [$1])],
+                          [2], [$1])])])

 
 # b4_yyerror_args
 # ---------------
 # Arguments passed to yyerror: user args plus yylloc.
 m4_define([b4_yyerror_args],
 
 # b4_yyerror_args
 # ---------------
 # Arguments passed to yyerror: user args plus yylloc.
 m4_define([b4_yyerror_args],

-[b4_yacc_pure_if([b4_locations_if([&yylloc, ])])dnl
-m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
+[b4_yyerror_arg_loc_if([&yylloc, ])dnl
+m4_ifset([b4_parse_param], [b4_args(b4_parse_param), ])])

 
 
 # b4_lex_param
 
 
 # b4_lex_param


@@ -93,8 +105,8 @@ m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
 # Accumulate in b4_lex_param all the yylex arguments.
 # b4_lex_param arrives quoted twice, but we want to keep only one level.
 m4_define([b4_lex_param],
 # Accumulate in b4_lex_param all the yylex arguments.
 # b4_lex_param arrives quoted twice, but we want to keep only one level.
 m4_define([b4_lex_param],

-m4_dquote(b4_pure_if([[[[YYSTYPE *]], [[&yylval]]][]dnl
-b4_locations_if([, [[YYLTYPE *], [&yylloc]]])m4_ifdef([b4_lex_param], [, ])])dnl
+m4_dquote(b4_pure_if([[[[YYSTYPE *yylval]], [[&yylval]]][]dnl
+b4_locations_if([, [[YYLTYPE *yylloc], [&yylloc]]])m4_ifdef([b4_lex_param], [, ])])dnl

 m4_ifdef([b4_lex_param], b4_lex_param)))
 
 
 m4_ifdef([b4_lex_param], b4_lex_param)))
 
 


@@ -172,11 +184,36 @@ m4_define([b4_declare_scanner_communication_variables], [[
 /* The lookahead symbol.  */
 int yychar;
 
 /* The lookahead symbol.  */
 int yychar;
 

+]b4_pure_if([[
+#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
+/* Suppress an incorrect diagnostic about yylval being uninitialized.  */
+# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
+    _Pragma ("GCC diagnostic push") \
+    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
+    _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
+# define YY_IGNORE_MAYBE_UNINITIALIZED_END \
+    _Pragma ("GCC diagnostic pop")
+#else
+/* Default value used for initialization, for pacifying older GCCs
+   or non-GCC compilers.  */
+static YYSTYPE yyval_default;
+# define YY_INITIAL_VALUE(Value) = Value
+#endif]b4_locations_if([[
+static YYLTYPE yyloc_default][]b4_yyloc_default[;]])])[
+#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+# define YY_IGNORE_MAYBE_UNINITIALIZED_END
+#endif
+#ifndef YY_INITIAL_VALUE
+# define YY_INITIAL_VALUE(Value) /* Nothing. */
+#endif
+

 /* The semantic value of the lookahead symbol.  */
 /* The semantic value of the lookahead symbol.  */

-YYSTYPE yylval;]b4_locations_if([[
+YYSTYPE yylval YY_INITIAL_VALUE(yyval_default);]b4_locations_if([[

 
 /* Location data for the lookahead symbol.  */
 
 /* Location data for the lookahead symbol.  */

-YYLTYPE yylloc;]])b4_pure_if([], [[
+YYLTYPE yylloc]b4_pure_if([ = yyloc_default], [b4_yyloc_default])[;
+]])b4_pure_if([], [[

 
 /* Number of syntax errors so far.  */
 int yynerrs;]])])
 
 /* Number of syntax errors so far.  */
 int yynerrs;]])])


@@ -239,19 +276,19 @@ enum { YYPUSH_MORE = 4 };
 
 typedef struct ]b4_prefix[pstate ]b4_prefix[pstate;
 
 
 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_pull_if([b4_function_declare([b4_prefix[parse]], [[int]], b4_parse_param)
+])b4_function_declare([b4_prefix[push_parse]], [[int]],

   [[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_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_api_PREFIX[LTYPE *pushed_loc]], [[pushed_loc]]]])])m4_ifset([b4_parse_param], [,

   b4_parse_param]))
   b4_parse_param]))

-b4_pull_if([b4_c_function_decl([b4_prefix[pull_parse]], [[int]],
+b4_pull_if([b4_function_declare([b4_prefix[pull_parse]], [[int]],

   [[b4_prefix[pstate *ps]], [[ps]]]m4_ifset([b4_parse_param], [,
   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 *]],
+b4_function_declare([b4_prefix[pstate_new]], [b4_prefix[pstate *]],

                     [[[void]], []])
                     [[[void]], []])

-b4_c_function_decl([b4_prefix[pstate_delete]], [[void]],
+b4_function_declare([b4_prefix[pstate_delete]], [[void]],

                    [[b4_prefix[pstate *ps]], [[ps]]])dnl
 ])
 
                    [[b4_prefix[pstate *ps]], [[ps]]])dnl
 ])
 


@@ -259,7 +296,7 @@ b4_c_function_decl([b4_prefix[pstate_delete]], [[void]],
 # -------------------
 # When not the push parser.
 m4_define([b4_declare_yyparse_],
 # -------------------
 # When not the push parser.
 m4_define([b4_declare_yyparse_],

-[b4_c_function_decl(b4_prefix[parse], [int], b4_parse_param)])
+[b4_function_declare(b4_prefix[parse], [int], b4_parse_param)])

 
 
 # b4_declare_yyparse
 
 
 # b4_declare_yyparse


@@ -289,10 +326,7 @@ m4_define([b4_shared_declarations],
 ## Output files.  ##
 ## -------------- ##
 
 ## Output files.  ##
 ## -------------- ##
 

-# We do want M4 expansion after # for CPP macros.
-m4_changecom()
-m4_divert_push(0)dnl
-@output(b4_parser_file_name@)@
+b4_output_begin([b4_parser_file_name])

 b4_copyright([Bison implementation for Yacc-like parsers in C])[
 
 /* C LALR(1) parser skeleton written by Richard Stallman, by
 b4_copyright([Bison implementation for Yacc-like parsers in C])[
 
 /* C LALR(1) parser skeleton written by Richard Stallman, by


@@ -340,9 +374,11 @@ m4_if(b4_api_prefix, [yy], [],
 # define YYERROR_VERBOSE ]b4_error_verbose_if([1], [0])[
 #endif
 
 # define YYERROR_VERBOSE ]b4_error_verbose_if([1], [0])[
 #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[@)".  */
    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
 
 /* Copy the second part of user declarations.  */
 ]b4_user_post_prologue


@@ -395,29 +431,19 @@ typedef short int yytype_int16;
 # if defined YYENABLE_NLS && YYENABLE_NLS
 #  if ENABLE_NLS
 #   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
 # if defined YYENABLE_NLS && YYENABLE_NLS
 #  if ENABLE_NLS
 #   include <libintl.h> /* INFRINGES ON USER NAME SPACE */

-#   define YY_(msgid) dgettext ("bison-runtime", msgid)
+#   define YY_(Msgid) dgettext ("bison-runtime", Msgid)

 #  endif
 # endif
 # ifndef YY_
 #  endif
 # endif
 # ifndef YY_

-#  define YY_(msgid) msgid
+#  define YY_(Msgid) Msgid

 # endif
 #endif
 
 /* Suppress unused-variable warnings by "using" E.  */
 # endif
 #endif
 
 /* Suppress unused-variable warnings by "using" E.  */

-#if ! defined lint || defined __GNUC__
-# define YYUSE(e) ((void) (e))
+#ifdef __GNUC__
+# define YYUSE(E) ((void) (E))

 #else
 #else

-# define YYUSE(e) /* empty */
-#endif
-
-/* Identity function, used to suppress warnings about constant conditions.  */
-#ifndef lint
-# define YYID(n) (n)
-#else
-]b4_c_function_def([YYID], [static int], [[int yyi], [yyi]])[
-{
-  return yyi;
-}
+# define YYUSE(E) /* empty */

 #endif
 
 #if ]b4_lac_if([[1]], [[! defined yyoverflow || YYERROR_VERBOSE]])[
 #endif
 
 #if ]b4_lac_if([[1]], [[! defined yyoverflow || YYERROR_VERBOSE]])[


@@ -451,7 +477,7 @@ b4_push_if([], [b4_lac_if([], [[
 
 # ifdef YYSTACK_ALLOC
    /* Pacify GCC's `empty if-body' warning.  */
 
 # ifdef YYSTACK_ALLOC
    /* Pacify GCC's `empty if-body' warning.  */

-#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
+#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)

 #  ifndef YYSTACK_ALLOC_MAXIMUM
     /* The OS might guarantee only one guard page at the bottom of the stack,
        and a page size can be as small as 4096 bytes.  So we cannot safely
 #  ifndef YYSTACK_ALLOC_MAXIMUM
     /* The OS might guarantee only one guard page at the bottom of the stack,
        and a page size can be as small as 4096 bytes.  So we cannot safely


@@ -532,7 +558,7 @@ union yyalloc
         yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
         yyptr += yynewbytes / sizeof (*yyptr);                          \
       }                                                                 \
         yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
         yyptr += yynewbytes / sizeof (*yyptr);                          \
       }                                                                 \

-    while (YYID (0))
+    while (0)

 
 #endif
 
 
 #endif
 


@@ -551,7 +577,7 @@ union yyalloc
           for (yyi = 0; yyi < (Count); yyi++)   \
             (Dst)[yyi] = (Src)[yyi];            \
         }                                       \
           for (yyi = 0; yyi < (Count); yyi++)   \
             (Dst)[yyi] = (Src)[yyi];            \
         }                                       \

-      while (YYID (0))
+      while (0)

 #  endif
 # endif
 #endif /* !YYCOPY_NEEDED */
 #  endif
 # endif
 #endif /* !YYCOPY_NEEDED */


@@ -610,13 +636,13 @@ static const ]b4_int_type_for([b4_toknum])[ yytoknum[] =
 
 #define YYPACT_NINF ]b4_pact_ninf[
 
 
 #define YYPACT_NINF ]b4_pact_ninf[
 

-#define yypact_value_is_default(yystate) \
-  ]b4_table_value_equals([[pact]], [[yystate]], [b4_pact_ninf])[
+#define yypact_value_is_default(Yystate) \
+  ]b4_table_value_equals([[pact]], [[Yystate]], [b4_pact_ninf])[

 
 #define YYTABLE_NINF ]b4_table_ninf[
 
 
 #define YYTABLE_NINF ]b4_table_ninf[
 

-#define yytable_value_is_error(yytable_value) \
-  ]b4_table_value_equals([[table]], [[yytable_value]], [b4_table_ninf])[
+#define yytable_value_is_error(Yytable_value) \
+  ]b4_table_value_equals([[table]], [[Yytable_value]], [b4_table_ninf])[

 
 ]b4_parser_tables_define[
 
 
 ]b4_parser_tables_define[
 


@@ -648,45 +674,23 @@ do                                                              \
       yyerror (]b4_yyerror_args[YY_("syntax error: cannot back up")); \
       YYERROR;                                                  \
     }                                                           \
       yyerror (]b4_yyerror_args[YY_("syntax error: cannot back up")); \
       YYERROR;                                                  \
     }                                                           \

-while (YYID (0))
-
+while (0)

 
 

+/* Error token number */

 #define YYTERROR        1
 #define YYERRCODE       256
 
 ]b4_locations_if([[
 ]b4_yylloc_default_define[
 #define YYRHSLOC(Rhs, K) ((Rhs)[K])
 #define YYTERROR        1
 #define YYERRCODE       256
 
 ]b4_locations_if([[
 ]b4_yylloc_default_define[
 #define YYRHSLOC(Rhs, K) ((Rhs)[K])

-
-/* YY_LOCATION_PRINT -- Print the location on the stream.
-   This macro was not mandated originally: define only if we know
-   we won't break user code: when these are the locations we know.  */
-
-#ifndef YY_LOCATION_PRINT
-# 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,     \
-              (Loc).last_line,  (Loc).last_column)
-# else
-#  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
-# endif
-#endif]], [[
-
-
-/* This macro is provided for backward compatibility. */
-
-#ifndef YY_LOCATION_PRINT
-# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
-#endif]])[
-
+]])[
+]b4_yy_location_print_define[

 
 /* YYLEX -- calling `yylex' with the right arguments.  */
 
 /* YYLEX -- calling `yylex' with the right arguments.  */

-

 #ifdef YYLEX_PARAM
 # define YYLEX yylex (]b4_pure_if([&yylval[]b4_locations_if([, &yylloc]), ])[YYLEX_PARAM)
 #else
 #ifdef YYLEX_PARAM
 # define YYLEX yylex (]b4_pure_if([&yylval[]b4_locations_if([, &yylloc]), ])[YYLEX_PARAM)
 #else

-# define YYLEX ]b4_c_function_call([yylex], [int], b4_lex_param)[
+# define YYLEX ]b4_function_call([yylex], [int], b4_lex_param)[

 #endif
 
 /* Enable debugging if requested.  */
 #endif
 
 /* Enable debugging if requested.  */


@@ -701,7 +705,7 @@ while (YYID (0))
 do {                                            \
   if (yydebug)                                  \
     YYFPRINTF Args;                             \
 do {                                            \
   if (yydebug)                                  \
     YYFPRINTF Args;                             \

-} while (YYID (0))
+} while (0)

 
 # define YY_SYMBOL_PRINT(Title, Type, Value, Location)                    \
 do {                                                                      \
 
 # define YY_SYMBOL_PRINT(Title, Type, Value, Location)                    \
 do {                                                                      \


@@ -712,16 +716,16 @@ do {                                                                      \
                   Type, Value]b4_locations_if([, Location])[]b4_user_args[); \
       YYFPRINTF (stderr, "\n");                                           \
     }                                                                     \
                   Type, Value]b4_locations_if([, Location])[]b4_user_args[); \
       YYFPRINTF (stderr, "\n");                                           \
     }                                                                     \

-} while (YYID (0))
+} while (0)

 
 

-]b4_yy_symbol_print_generate([b4_c_function_def])[
+]b4_yy_symbol_print_define[

 
 /*------------------------------------------------------------------.
 | yy_stack_print -- Print the state stack from its BOTTOM up to its |
 | TOP (included).                                                   |
 `------------------------------------------------------------------*/
 
 
 /*------------------------------------------------------------------.
 | yy_stack_print -- Print the state stack from its BOTTOM up to its |
 | TOP (included).                                                   |
 `------------------------------------------------------------------*/
 

-]b4_c_function_def([yy_stack_print], [static void],
+]b4_function_define([yy_stack_print], [static void],

                    [[yytype_int16 *yybottom], [yybottom]],
                    [[yytype_int16 *yytop],    [yytop]])[
 {
                    [[yytype_int16 *yybottom], [yybottom]],
                    [[yytype_int16 *yytop],    [yytop]])[
 {


@@ -738,14 +742,14 @@ do {                                                                      \
 do {                                                            \
   if (yydebug)                                                  \
     yy_stack_print ((Bottom), (Top));                           \
 do {                                                            \
   if (yydebug)                                                  \
     yy_stack_print ((Bottom), (Top));                           \

-} while (YYID (0))
+} while (0)

 
 
 /*------------------------------------------------.
 | Report that the YYRULE is going to be reduced.  |
 `------------------------------------------------*/
 
 
 
 /*------------------------------------------------.
 | Report that the YYRULE is going to be reduced.  |
 `------------------------------------------------*/
 

-]b4_c_function_def([yy_reduce_print], [static void],
+]b4_function_define([yy_reduce_print], [static void],

                    [[yytype_int16 *yyssp], [yyssp]],
                    [[YYSTYPE *yyvsp], [yyvsp]],
     b4_locations_if([[[YYLTYPE *yylsp], [yylsp]],
                    [[yytype_int16 *yyssp], [yyssp]],
                    [[YYSTYPE *yyvsp], [yyvsp]],
     b4_locations_if([[[YYLTYPE *yylsp], [yylsp]],


@@ -774,7 +778,7 @@ do {                                                            \
 do {                                    \
   if (yydebug)                          \
     yy_reduce_print (yyssp, yyvsp, ]b4_locations_if([yylsp, ])[Rule]b4_user_args[); \
 do {                                    \
   if (yydebug)                          \
     yy_reduce_print (yyssp, yyvsp, ]b4_locations_if([yylsp, ])[Rule]b4_user_args[); \

-} while (YYID (0))
+} while (0)

 
 /* Nonzero means print parse trace.  It is left uninitialized so that
    multiple parsers can coexist.  */
 
 /* Nonzero means print parse trace.  It is left uninitialized so that
    multiple parsers can coexist.  */


@@ -908,7 +912,7 @@ do {                                                             \
           goto yyerrlab;                                         \
       }                                                          \
     }                                                            \
           goto yyerrlab;                                         \
       }                                                          \
     }                                                            \

-} while (YYID (0))
+} while (0)

 
 /* Discard any previous initial lookahead context because of Event,
    which may be a lookahead change or an invalidation of the currently
 
 /* Discard any previous initial lookahead context because of Event,
    which may be a lookahead change or an invalidation of the currently


@@ -931,7 +935,7 @@ do {                                                                     \
                    Event "\n");                                          \
       yy_lac_established = 0;                                            \
     }                                                                    \
                    Event "\n");                                          \
       yy_lac_established = 0;                                            \
     }                                                                    \

-} while (YYID (0))
+} while (0)

 #else
 # define YY_LAC_DISCARD(Event) yy_lac_established = 0
 #endif
 #else
 # define YY_LAC_DISCARD(Event) yy_lac_established = 0
 #endif


@@ -1047,7 +1051,7 @@ yy_lac (yytype_int16 *yyesa, yytype_int16 **yyes,
 #   define yystrlen strlen
 #  else
 /* Return the length of YYSTR.  */
 #   define yystrlen strlen
 #  else
 /* Return the length of YYSTR.  */

-]b4_c_function_def([yystrlen], [static YYSIZE_T],
+]b4_function_define([yystrlen], [static YYSIZE_T],

    [[const char *yystr], [yystr]])[
 {
   YYSIZE_T yylen;
    [[const char *yystr], [yystr]])[
 {
   YYSIZE_T yylen;


@@ -1064,7 +1068,7 @@ yy_lac (yytype_int16 *yyesa, yytype_int16 **yyes,
 #  else
 /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
    YYDEST.  */
 #  else
 /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
    YYDEST.  */

-]b4_c_function_def([yystpcpy], [static char *],
+]b4_function_define([yystpcpy], [static char *],

    [[char *yydest], [yydest]], [[const char *yysrc], [yysrc]])[
 {
   char *yyd = yydest;
    [[char *yydest], [yydest]], [[const char *yysrc], [yysrc]])[
 {
   char *yyd = yydest;


@@ -1143,7 +1147,6 @@ yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
 {
   YYSIZE_T yysize0 = yytnamerr (YY_NULL, yytname[yytoken]);
   YYSIZE_T yysize = yysize0;
 {
   YYSIZE_T yysize0 = yytnamerr (YY_NULL, yytname[yytoken]);
   YYSIZE_T yysize = yysize0;

-  YYSIZE_T yysize1;

   enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
   /* Internationalized format string. */
   const char *yyformat = YY_NULL;
   enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
   /* Internationalized format string. */
   const char *yyformat = YY_NULL;


@@ -1220,11 +1223,13 @@ yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
                     break;
                   }
                 yyarg[yycount++] = yytname[yyx];
                     break;
                   }
                 yyarg[yycount++] = yytname[yyx];

-                yysize1 = yysize + yytnamerr (YY_NULL, yytname[yyx]);
-                if (! (yysize <= yysize1
-                       && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
-                  return 2;
-                yysize = yysize1;
+                {
+                  YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULL, yytname[yyx]);
+                  if (! (yysize <= yysize1
+                         && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+                    return 2;
+                  yysize = yysize1;
+                }

               }
         }]b4_lac_if([[
 # if ]b4_api_PREFIX[DEBUG
               }
         }]b4_lac_if([[
 # if ]b4_api_PREFIX[DEBUG


@@ -1248,10 +1253,12 @@ yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
 # undef YYCASE_
     }
 
 # undef YYCASE_
     }
 

-  yysize1 = yysize + yystrlen (yyformat);
-  if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
-    return 2;
-  yysize = yysize1;
+  {
+    YYSIZE_T yysize1 = yysize + yystrlen (yyformat);
+    if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+      return 2;
+    yysize = yysize1;
+  }

 
   if (*yymsg_alloc < yysize)
     {
 
   if (*yymsg_alloc < yysize)
     {


@@ -1284,7 +1291,7 @@ yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
 }
 #endif /* YYERROR_VERBOSE */
 
 }
 #endif /* YYERROR_VERBOSE */
 

-]b4_yydestruct_generate([b4_c_function_def])[
+]b4_yydestruct_define[

 
 ]b4_pure_if([], [
 
 
 ]b4_pure_if([], [
 


@@ -1299,13 +1306,13 @@ struct yypstate
 
 static char yypstate_allocated = 0;]])b4_pull_if([
 
 
 static char yypstate_allocated = 0;]])b4_pull_if([
 

-b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
+b4_function_define([[yyparse]], [[int]], b4_parse_param)[

 {
   return yypull_parse (YY_NULL]m4_ifset([b4_parse_param],
 {
   return yypull_parse (YY_NULL]m4_ifset([b4_parse_param],

-                                  [[, ]b4_c_args(b4_parse_param)])[);
+                                  [[, ]b4_args(b4_parse_param)])[);

 }
 
 }
 

-]b4_c_function_def([[yypull_parse]], [[int]],
+]b4_function_define([[yypull_parse]], [[int]],

   [[[yypstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
   b4_parse_param]))[
 {
   [[[yypstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
   b4_parse_param]))[
 {


@@ -1313,7 +1320,8 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
   yypstate *yyps_local;]b4_pure_if([[
   int yychar;
   YYSTYPE yylval;]b4_locations_if([[
   yypstate *yyps_local;]b4_pure_if([[
   int yychar;
   YYSTYPE yylval;]b4_locations_if([[

-  YYLTYPE yylloc;]])])[
+  static YYLTYPE yyloc_default][]b4_yyloc_default[;
+  YYLTYPE yylloc = yyloc_default;]])])[

   if (yyps)
     yyps_local = yyps;
   else
   if (yyps)
     yyps_local = yyps;
   else


@@ -1330,7 +1338,7 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
   do {
     yychar = YYLEX;
     yystatus =
   do {
     yychar = YYLEX;
     yystatus =

-      yypush_parse (yyps_local]b4_pure_if([[, yychar, &yylval]b4_locations_if([[, &yylloc]])])m4_ifset([b4_parse_param], [, b4_c_args(b4_parse_param)])[);
+      yypush_parse (yyps_local]b4_pure_if([[, yychar, &yylval]b4_locations_if([[, &yylloc]])])m4_ifset([b4_parse_param], [, b4_args(b4_parse_param)])[);

   } while (yystatus == YYPUSH_MORE);
   if (!yyps)
     yypstate_delete (yyps_local);
   } while (yystatus == YYPUSH_MORE);
   if (!yyps)
     yypstate_delete (yyps_local);


@@ -1338,7 +1346,7 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
 }]])[
 
 /* Initialize the parser data structure.  */
 }]])[
 
 /* Initialize the parser data structure.  */

-]b4_c_function_def([[yypstate_new]], [[yypstate *]])[
+]b4_function_define([[yypstate_new]], [[yypstate *]])[

 {
   yypstate *yyps;]b4_pure_if([], [[
   if (yypstate_allocated)
 {
   yypstate *yyps;]b4_pure_if([], [[
   if (yypstate_allocated)


@@ -1351,7 +1359,7 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
   return yyps;
 }
 
   return yyps;
 }
 

-]b4_c_function_def([[yypstate_delete]], [[void]],
+]b4_function_define([[yypstate_delete]], [[void]],

                    [[[yypstate *yyps]], [[yyps]]])[
 {
 #ifndef yyoverflow
                    [[[yypstate *yyps]], [[yyps]]])[
 {
 #ifndef yyoverflow


@@ -1389,11 +1397,11 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
 | yypush_parse.  |
 `---------------*/
 
 | yypush_parse.  |
 `---------------*/
 

-]b4_c_function_def([[yypush_parse]], [[int]],
+]b4_function_define([[yypush_parse]], [[int]],

   [[[yypstate *yyps]], [[yyps]]]b4_pure_if([,
   [[[int yypushed_char]], [[yypushed_char]]],
   [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
   [[[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], [,
+  [[[YYLTYPE *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,

   b4_parse_param]))], [[
 
 
   b4_parse_param]))], [[
 
 


@@ -1401,7 +1409,7 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
 | yyparse.  |
 `----------*/
 
 | yyparse.  |
 `----------*/
 

-]b4_c_function_def([yyparse], [int], b4_parse_param)])[
+]b4_function_define([yyparse], [int], b4_parse_param)])[

 {]b4_pure_if([b4_declare_scanner_communication_variables
 ])b4_push_if([b4_pure_if([], [[
   int yypushed_char = yychar;
 {]b4_pure_if([b4_declare_scanner_communication_variables
 ])b4_push_if([b4_pure_if([], [[
   int yypushed_char = yychar;


@@ -1414,7 +1422,7 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
   int yyn;
   int yyresult;
   /* Lookahead token as an internal (translated) token number.  */
   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([[
   /* The variables used to return semantic value and location from the
      action routines.  */
   YYSTYPE yyval;]b4_locations_if([[


@@ -1439,10 +1447,9 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
       goto yyread_pushed_token;
     }]])[
 
       goto yyread_pushed_token;
     }]])[
 

-  yytoken = 0;
-  yyss = yyssa;
-  yyvs = yyvsa;]b4_locations_if([[
-  yyls = yylsa;]])[
+  yyssp = yyss = yyssa;
+  yyvsp = yyvs = yyvsa;]b4_locations_if([[
+  yylsp = yyls = yylsa;]])[

   yystacksize = YYINITDEPTH;]b4_lac_if([[
 
   yyes = yyesa;
   yystacksize = YYINITDEPTH;]b4_lac_if([[
 
   yyes = yyesa;


@@ -1456,30 +1463,16 @@ b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
   yyerrstatus = 0;
   yynerrs = 0;
   yychar = YYEMPTY; /* Cause a token to be read.  */
   yyerrstatus = 0;
   yynerrs = 0;
   yychar = YYEMPTY; /* Cause a token to be read.  */

-
-  /* Initialize stack pointers.
-     Waste one element of value and location stack
-     so that they stay on the same level as the state stack.
-     The wasted elements are never initialized.  */
-  yyssp = yyss;
-  yyvsp = yyvs;]b4_locations_if([[
-  yylsp = yyls;
-
-#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_ifdef([b4_initial_action], [

 b4_dollar_pushdef([m4_define([b4_dollar_dollar_used])yylval], [],
 b4_dollar_pushdef([m4_define([b4_dollar_dollar_used])yylval], [],

-                  [m4_define([b4_at_dollar_used])yylloc])dnl
+                  [b4_push_if([b4_pure_if([*])yypushed_loc], [yylloc])])dnl

 /* User initialization code.  */
 b4_user_initial_action
 b4_dollar_popdef[]dnl
 m4_ifdef([b4_dollar_dollar_used],[[  yyvsp[0] = yylval;
 /* User initialization code.  */
 b4_user_initial_action
 b4_dollar_popdef[]dnl
 m4_ifdef([b4_dollar_dollar_used],[[  yyvsp[0] = yylval;

-]])dnl
-m4_ifdef([b4_at_dollar_used], [[  yylsp[0] = yylloc;

 ]])])dnl
 ]])])dnl

+b4_locations_if([[  yylsp[0] = ]b4_push_if([b4_pure_if([*])yypushed_loc], [yylloc])[;
+]])dnl

 [  goto yysetstate;
 
 /*------------------------------------------------------------.
 [  goto yysetstate;
 
 /*------------------------------------------------------------.


@@ -1650,7 +1643,9 @@ yyread_pushed_token:]])[
   YY_LAC_DISCARD ("shift");]])[
 
   yystate = yyn;
   YY_LAC_DISCARD ("shift");]])[
 
   yystate = yyn;

+  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN

   *++yyvsp = yylval;
   *++yyvsp = yylval;

+  YY_IGNORE_MAYBE_UNINITIALIZED_END

 ]b4_locations_if([  *++yylsp = yylloc;])[
   goto yynewstate;
 
 ]b4_locations_if([  *++yylsp = yylloc;])[
   goto yynewstate;
 


@@ -1870,7 +1865,9 @@ yyerrlab1:
      current lookahead token, the shift below will for sure.  */
   YY_LAC_DISCARD ("error recovery");]])[
 
      current lookahead token, the shift below will for sure.  */
   YY_LAC_DISCARD ("error recovery");]])[
 

+  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN

   *++yyvsp = yylval;
   *++yyvsp = yylval;

+  YY_IGNORE_MAYBE_UNINITIALIZED_END

 ]b4_locations_if([[
   yyerror_range[2] = yylloc;
   /* Using YYLLOC is tempting, but would change the location of
 ]b4_locations_if([[
   yyerror_range[2] = yylloc;
   /* Using YYLLOC is tempting, but would change the location of


@@ -1941,16 +1938,15 @@ yypushreturn:]])[
   if (yymsg != yymsgbuf)
     YYSTACK_FREE (yymsg);
 #endif
   if (yymsg != yymsgbuf)
     YYSTACK_FREE (yymsg);
 #endif

-  /* Make sure YYID is used.  */
-  return YYID (yyresult);
+  return yyresult;

 }
 }

-

 ]b4_epilogue[]dnl
 ]b4_epilogue[]dnl

+b4_output_end()
+

 b4_defines_if(
 b4_defines_if(

-[@output(b4_spec_defines_file@)@
-b4_copyright([Bison interface for Yacc-like parsers in C])[
+[b4_output_begin([b4_spec_defines_file])[
+]b4_copyright([Bison interface for Yacc-like parsers in C])[

 
 ]b4_shared_declarations[
 
 ]b4_shared_declarations[

-]])dnl b4_defines_if
-m4_divert_pop(0)
-m4_popdef([b4_copyright_years])
+]b4_output_end()
+])# b4_defines_if