X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/8ec0a172bcae50565b68288a32c0dd9368eee8ad..6e30ede87a1c39c53842a6a747ecd9f7484d92a5:/src/parse-gram.c

diff --git a/src/parse-gram.c b/src/parse-gram.c
index 3e8a8776..4d4e1722 100644
--- a/src/parse-gram.c
+++ b/src/parse-gram.c
@@ -1,24 +1,21 @@
-/* A Bison parser, made by GNU Bison 2.3+.  */
+/* A Bison parser, made by GNU Bison 2.4.1.206-8a8b-dirty.  */
 
 /* Skeleton implementation for Bison's Yacc-like parsers in C
-
-   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
-   Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
+   
+      Copyright (C) 1984, 1989-1990, 2000-2010 Free Software Foundation, Inc.
+   
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+   
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
-
+   
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* As a special exception, you may create a larger work that contains
    part or all of the Bison parser skeleton and distribute that work
@@ -29,7 +26,7 @@
    special exception, which will cause the skeleton and the resulting
    Bison output files to be licensed under the GNU General Public
    License without this special exception.
-
+   
    This special exception was added by the Free Software Foundation in
    version 2.2 of Bison.  */
 
@@ -47,7 +44,7 @@
 #define YYBISON 1
 
 /* Bison version.  */
-#define YYBISON_VERSION "2.3+"
+#define YYBISON_VERSION "2.4.1.206-8a8b-dirty"
 
 /* Skeleton name.  */
 #define YYSKELETON_NAME "yacc.c"
@@ -55,31 +52,38 @@
 /* Pure parsers.  */
 #define YYPURE 1
 
+/* Push parsers.  */
+#define YYPUSH 0
+
+/* Pull parsers.  */
+#define YYPULL 1
+
 /* Using locations.  */
 #define YYLSP_NEEDED 1
 
 /* Substitute the variable and function names.  */
-#define yyparse gram_parse
-#define yylex   gram_lex
-#define yyerror gram_error
-#define yylval  gram_lval
-#define yychar  gram_char
-#define yydebug gram_debug
-#define yynerrs gram_nerrs
-#define yylloc gram_lloc
+#define yyparse         gram_parse
+#define yylex           gram_lex
+#define yyerror         gram_error
+#define yylval          gram_lval
+#define yychar          gram_char
+#define yydebug         gram_debug
+#define yynerrs         gram_nerrs
+#define yylloc          gram_lloc
 
 /* Copy the first part of user declarations.  */
-/* Line 164 of yacc.c.  */
-#line 1 "../../src/parse-gram.y"
+
+/* Line 251 of yacc.c  */
+#line 1 "parse-gram.y"
 /* Bison Grammar Parser                             -*- C -*-
 
-   Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2002-2010 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -88,10 +92,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301  USA
-*/
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include "system.h"
@@ -101,13 +102,13 @@
 #include "files.h"
 #include "getargs.h"
 #include "gram.h"
-#include "muscle_tab.h"
+#include "muscle-tab.h"
+#include "named-ref.h"
 #include "quotearg.h"
 #include "reader.h"
 #include "symlist.h"
 #include "scan-gram.h"
 #include "scan-code.h"
-#include "strverscmp.h"
 
 #define YYLLOC_DEFAULT(Current, Rhs, N)  (Current) = lloc_default (Rhs, N)
 static YYLTYPE lloc_default (YYLTYPE const *, int);
@@ -126,27 +127,30 @@ static void gram_error (location const *, char const *);
 
 static char const *char_name (char);
 
-static void add_param (char const *, char *, location);
+/** Add a lex-param or a parse-param.
+ *
+ * \param type  \a lex_param or \a parse_param
+ * \param decl  the formal argument
+ * \param loc   the location in the source.
+ */
+static void add_param (char const *type, char *decl, location loc);
+
 
 static symbol_class current_class = unknown_sym;
-static uniqstr current_type = 0;
+static uniqstr current_type = NULL;
 static symbol *current_lhs;
 static location current_lhs_location;
+static named_ref *current_lhs_named_ref;
 static int current_prec = 0;
 
-#ifdef UINT_FAST8_MAX
-# define YYTYPE_UINT8 uint_fast8_t
-#endif
-#ifdef INT_FAST8_MAX
-# define YYTYPE_INT8 int_fast8_t
-#endif
-#ifdef UINT_FAST16_MAX
-# define YYTYPE_UINT16 uint_fast16_t
-#endif
-#ifdef INT_FAST16_MAX
-# define YYTYPE_INT16 int_fast16_t
-#endif
+#define YYTYPE_INT16 int_fast16_t
+#define YYTYPE_INT8 int_fast8_t
+#define YYTYPE_UINT16 uint_fast16_t
+#define YYTYPE_UINT8 uint_fast8_t
+
 
+/* Line 251 of yacc.c  */
+#line 154 "parse-gram.c"
 
 /* Enabling traces.  */
 #ifndef YYDEBUG
@@ -187,47 +191,48 @@ static int current_prec = 0;
      PERCENT_PREC = 268,
      PERCENT_DPREC = 269,
      PERCENT_MERGE = 270,
-     PERCENT_AFTER_HEADER = 271,
-     PERCENT_BEFORE_HEADER = 272,
-     PERCENT_DEBUG = 273,
-     PERCENT_DEFAULT_PREC = 274,
-     PERCENT_DEFINE = 275,
-     PERCENT_DEFINES = 276,
-     PERCENT_END_HEADER = 277,
-     PERCENT_ERROR_VERBOSE = 278,
-     PERCENT_EXPECT = 279,
-     PERCENT_EXPECT_RR = 280,
-     PERCENT_FILE_PREFIX = 281,
-     PERCENT_GLR_PARSER = 282,
-     PERCENT_INITIAL_ACTION = 283,
-     PERCENT_LEX_PARAM = 284,
-     PERCENT_LOCATIONS = 285,
-     PERCENT_NAME_PREFIX = 286,
-     PERCENT_NO_DEFAULT_PREC = 287,
-     PERCENT_NO_LINES = 288,
-     PERCENT_NONDETERMINISTIC_PARSER = 289,
-     PERCENT_OUTPUT = 290,
-     PERCENT_PARSE_PARAM = 291,
-     PERCENT_PURE_PARSER = 292,
-     PERCENT_REQUIRE = 293,
-     PERCENT_SKELETON = 294,
-     PERCENT_START = 295,
-     PERCENT_START_HEADER = 296,
-     PERCENT_TOKEN_TABLE = 297,
-     PERCENT_VERBOSE = 298,
-     PERCENT_YACC = 299,
-     BRACED_CODE = 300,
-     CHAR = 301,
-     EPILOGUE = 302,
-     EQUAL = 303,
-     ID = 304,
-     ID_COLON = 305,
-     PERCENT_PERCENT = 306,
-     PIPE = 307,
-     PROLOGUE = 308,
-     SEMICOLON = 309,
-     TYPE = 310,
-     PERCENT_UNION = 311
+     PERCENT_CODE = 271,
+     PERCENT_DEBUG = 272,
+     PERCENT_DEFAULT_PREC = 273,
+     PERCENT_DEFINE = 274,
+     PERCENT_DEFINES = 275,
+     PERCENT_ERROR_VERBOSE = 276,
+     PERCENT_EXPECT = 277,
+     PERCENT_EXPECT_RR = 278,
+     PERCENT_FILE_PREFIX = 279,
+     PERCENT_GLR_PARSER = 280,
+     PERCENT_INITIAL_ACTION = 281,
+     PERCENT_LANGUAGE = 282,
+     PERCENT_LEX_PARAM = 283,
+     PERCENT_LOCATIONS = 284,
+     PERCENT_NAME_PREFIX = 285,
+     PERCENT_NO_DEFAULT_PREC = 286,
+     PERCENT_NO_LINES = 287,
+     PERCENT_NONDETERMINISTIC_PARSER = 288,
+     PERCENT_OUTPUT = 289,
+     PERCENT_PARSE_PARAM = 290,
+     PERCENT_PURE_PARSER = 291,
+     PERCENT_REQUIRE = 292,
+     PERCENT_SKELETON = 293,
+     PERCENT_START = 294,
+     PERCENT_TOKEN_TABLE = 295,
+     PERCENT_VERBOSE = 296,
+     PERCENT_YACC = 297,
+     BRACED_CODE = 298,
+     BRACKETED_ID = 299,
+     CHAR = 300,
+     EPILOGUE = 301,
+     EQUAL = 302,
+     ID = 303,
+     ID_COLON = 304,
+     PERCENT_PERCENT = 305,
+     PIPE = 306,
+     PROLOGUE = 307,
+     SEMICOLON = 308,
+     TYPE = 309,
+     TYPE_TAG_ANY = 310,
+     TYPE_TAG_NONE = 311,
+     PERCENT_UNION = 312
    };
 #endif
 /* Tokens.  */
@@ -245,70 +250,77 @@ static int current_prec = 0;
 #define PERCENT_PREC 268
 #define PERCENT_DPREC 269
 #define PERCENT_MERGE 270
-#define PERCENT_AFTER_HEADER 271
-#define PERCENT_BEFORE_HEADER 272
-#define PERCENT_DEBUG 273
-#define PERCENT_DEFAULT_PREC 274
-#define PERCENT_DEFINE 275
-#define PERCENT_DEFINES 276
-#define PERCENT_END_HEADER 277
-#define PERCENT_ERROR_VERBOSE 278
-#define PERCENT_EXPECT 279
-#define PERCENT_EXPECT_RR 280
-#define PERCENT_FILE_PREFIX 281
-#define PERCENT_GLR_PARSER 282
-#define PERCENT_INITIAL_ACTION 283
-#define PERCENT_LEX_PARAM 284
-#define PERCENT_LOCATIONS 285
-#define PERCENT_NAME_PREFIX 286
-#define PERCENT_NO_DEFAULT_PREC 287
-#define PERCENT_NO_LINES 288
-#define PERCENT_NONDETERMINISTIC_PARSER 289
-#define PERCENT_OUTPUT 290
-#define PERCENT_PARSE_PARAM 291
-#define PERCENT_PURE_PARSER 292
-#define PERCENT_REQUIRE 293
-#define PERCENT_SKELETON 294
-#define PERCENT_START 295
-#define PERCENT_START_HEADER 296
-#define PERCENT_TOKEN_TABLE 297
-#define PERCENT_VERBOSE 298
-#define PERCENT_YACC 299
-#define BRACED_CODE 300
-#define CHAR 301
-#define EPILOGUE 302
-#define EQUAL 303
-#define ID 304
-#define ID_COLON 305
-#define PERCENT_PERCENT 306
-#define PIPE 307
-#define PROLOGUE 308
-#define SEMICOLON 309
-#define TYPE 310
-#define PERCENT_UNION 311
+#define PERCENT_CODE 271
+#define PERCENT_DEBUG 272
+#define PERCENT_DEFAULT_PREC 273
+#define PERCENT_DEFINE 274
+#define PERCENT_DEFINES 275
+#define PERCENT_ERROR_VERBOSE 276
+#define PERCENT_EXPECT 277
+#define PERCENT_EXPECT_RR 278
+#define PERCENT_FILE_PREFIX 279
+#define PERCENT_GLR_PARSER 280
+#define PERCENT_INITIAL_ACTION 281
+#define PERCENT_LANGUAGE 282
+#define PERCENT_LEX_PARAM 283
+#define PERCENT_LOCATIONS 284
+#define PERCENT_NAME_PREFIX 285
+#define PERCENT_NO_DEFAULT_PREC 286
+#define PERCENT_NO_LINES 287
+#define PERCENT_NONDETERMINISTIC_PARSER 288
+#define PERCENT_OUTPUT 289
+#define PERCENT_PARSE_PARAM 290
+#define PERCENT_PURE_PARSER 291
+#define PERCENT_REQUIRE 292
+#define PERCENT_SKELETON 293
+#define PERCENT_START 294
+#define PERCENT_TOKEN_TABLE 295
+#define PERCENT_VERBOSE 296
+#define PERCENT_YACC 297
+#define BRACED_CODE 298
+#define BRACKETED_ID 299
+#define CHAR 300
+#define EPILOGUE 301
+#define EQUAL 302
+#define ID 303
+#define ID_COLON 304
+#define PERCENT_PERCENT 305
+#define PIPE 306
+#define PROLOGUE 307
+#define SEMICOLON 308
+#define TYPE 309
+#define TYPE_TAG_ANY 310
+#define TYPE_TAG_NONE 311
+#define PERCENT_UNION 312
 
 
 
 
 #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
 typedef union YYSTYPE
-/* Line 195 of yacc.c.  */
-#line 97 "../../src/parse-gram.y"
 {
+
+/* Line 276 of yacc.c  */
+#line 93 "parse-gram.y"
+
   symbol *symbol;
   symbol_list *list;
   int integer;
-  char *chars;
+  char const *chars;
+  char *code;
   assoc assoc;
   uniqstr uniqstr;
   unsigned char character;
-}
-/* Line 195 of yacc.c.  */
-#line 308 "../../src/parse-gram.c"
-	YYSTYPE;
+  named_ref *named_ref;
+
+
+
+/* Line 276 of yacc.c  */
+#line 320 "parse-gram.c"
+} YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
 # define YYSTYPE_IS_DECLARED 1
-# define YYSTYPE_IS_TRIVIAL 1
 #endif
 
 #if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
@@ -327,8 +339,9 @@ typedef struct YYLTYPE
 
 /* Copy the second part of user declarations.  */
 
-/* Line 219 of yacc.c.  */
-#line 332 "../../src/parse-gram.c"
+
+/* Line 326 of yacc.c  */
+#line 345 "parse-gram.c"
 
 #ifdef short
 # undef short
@@ -378,7 +391,7 @@ typedef short int yytype_int16;
 #define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
 
 #ifndef YY_
-# if YYENABLE_NLS
+# if defined YYENABLE_NLS && YYENABLE_NLS
 #  if ENABLE_NLS
 #   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
 #   define YY_(msgid) dgettext ("bison-runtime", msgid)
@@ -403,14 +416,14 @@ typedef short int yytype_int16;
 #if (defined __STDC__ || defined __C99__FUNC__ \
      || defined __cplusplus || defined _MSC_VER)
 static int
-YYID (int i)
+YYID (int yyi)
 #else
 static int
-YYID (i)
-    int i;
+YYID (yyi)
+    int yyi;
 #endif
 {
-  return i;
+  return yyi;
 }
 #endif
 
@@ -492,9 +505,9 @@ void free (void *); /* INFRINGES ON USER NAME SPACE */
 /* A type that is properly aligned for any stack member.  */
 union yyalloc
 {
-  yytype_int16 yyss;
-  YYSTYPE yyvs;
-    YYLTYPE yyls;
+  yytype_int16 yyss_alloc;
+  YYSTYPE yyvs_alloc;
+  YYLTYPE yyls_alloc;
 };
 
 /* The size of the maximum gap between one aligned stack and the next.  */
@@ -529,12 +542,12 @@ union yyalloc
    elements in the stack, and YYPTR gives the new location of the
    stack.  Advance YYPTR to a properly aligned location for the next
    stack.  */
-# define YYSTACK_RELOCATE(Stack)					\
+# define YYSTACK_RELOCATE(Stack_alloc, Stack)				\
     do									\
       {									\
 	YYSIZE_T yynewbytes;						\
-	YYCOPY (&yyptr->Stack, Stack, yysize);				\
-	Stack = &yyptr->Stack;						\
+	YYCOPY (&yyptr->Stack_alloc, Stack, yysize);			\
+	Stack = &yyptr->Stack_alloc;					\
 	yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
 	yyptr += yynewbytes / sizeof (*yyptr);				\
       }									\
@@ -545,20 +558,20 @@ union yyalloc
 /* YYFINAL -- State number of the termination state.  */
 #define YYFINAL  3
 /* YYLAST -- Last index in YYTABLE.  */
-#define YYLAST   192
+#define YYLAST   160
 
 /* YYNTOKENS -- Number of terminals.  */
-#define YYNTOKENS  57
+#define YYNTOKENS  58
 /* YYNNTS -- Number of nonterminals.  */
-#define YYNNTS  27
+#define YYNNTS  34
 /* YYNRULES -- Number of rules.  */
-#define YYNRULES  89
+#define YYNRULES  108
 /* YYNRULES -- Number of states.  */
-#define YYNSTATES  128
+#define YYNSTATES  148
 
 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
 #define YYUNDEFTOK  2
-#define YYMAXUTOK   311
+#define YYMAXUTOK   312
 
 #define YYTRANSLATE(YYX)						\
   ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
@@ -597,66 +610,74 @@ static const yytype_uint8 yytranslate[] =
       25,    26,    27,    28,    29,    30,    31,    32,    33,    34,
       35,    36,    37,    38,    39,    40,    41,    42,    43,    44,
       45,    46,    47,    48,    49,    50,    51,    52,    53,    54,
-      55,    56
+      55,    56,    57
 };
 
 #if YYDEBUG
 /* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
    YYRHS.  */
-static const yytype_uint8 yyprhs[] =
+static const yytype_uint16 yyprhs[] =
 {
-       0,     0,     3,     8,     9,    12,    14,    16,    19,    22,
-      24,    27,    31,    33,    36,    38,    41,    44,    48,    50,
-      53,    56,    58,    62,    64,    66,    70,    73,    75,    78,
+       0,     0,     3,     8,     9,    12,    14,    16,    18,    22,
+      24,    27,    29,    32,    35,    38,    42,    44,    47,    50,
+      53,    55,    58,    62,    64,    66,    69,    73,    76,    78,
       81,    84,    86,    88,    90,    92,    94,    96,    99,   103,
-     107,   109,   111,   112,   114,   118,   119,   123,   124,   128,
-     132,   136,   138,   140,   142,   143,   145,   147,   150,   152,
-     154,   157,   160,   164,   166,   169,   171,   174,   176,   179,
-     182,   183,   187,   189,   193,   196,   197,   200,   203,   207,
-     211,   215,   217,   219,   221,   223,   225,   227,   229,   230
+     107,   109,   111,   114,   118,   119,   121,   125,   126,   130,
+     131,   135,   139,   143,   145,   147,   149,   150,   152,   154,
+     157,   159,   162,   164,   167,   169,   172,   174,   176,   178,
+     180,   182,   184,   187,   190,   194,   196,   199,   201,   204,
+     206,   209,   212,   213,   218,   220,   224,   227,   228,   232,
+     236,   240,   244,   248,   249,   251,   253,   255,   256,   258,
+     260,   262,   264,   266,   268,   270,   272,   274,   275
 };
 
 /* YYRHS -- A `-1'-separated list of the rules' RHS.  */
 static const yytype_int8 yyrhs[] =
 {
-      58,     0,    -1,    59,    51,    72,    83,    -1,    -1,    59,
-      60,    -1,    61,    -1,    53,    -1,    16,    45,    -1,    17,
-      45,    -1,    18,    -1,    20,    82,    -1,    20,    82,    82,
-      -1,    21,    -1,    22,    45,    -1,    23,    -1,    24,     4,
-      -1,    25,     4,    -1,    26,    48,    82,    -1,    27,    -1,
-      28,    45,    -1,    29,    45,    -1,    30,    -1,    31,    48,
-      82,    -1,    33,    -1,    34,    -1,    35,    48,    82,    -1,
-      36,    45,    -1,    37,    -1,    38,    82,    -1,    39,    82,
-      -1,    41,    45,    -1,    42,    -1,    43,    -1,    44,    -1,
-      54,    -1,    66,    -1,    63,    -1,    40,    80,    -1,     8,
-      45,    69,    -1,     9,    45,    69,    -1,    19,    -1,    32,
-      -1,    -1,    49,    -1,    56,    62,    45,    -1,    -1,     6,
-      64,    71,    -1,    -1,     5,    65,    71,    -1,     7,    55,
-      69,    -1,    67,    68,    69,    -1,    10,    -1,    11,    -1,
-      12,    -1,    -1,    55,    -1,    80,    -1,    69,    80,    -1,
-      55,    -1,    78,    -1,    78,     4,    -1,    78,    81,    -1,
-      78,     4,    81,    -1,    70,    -1,    71,    70,    -1,    73,
-      -1,    72,    73,    -1,    74,    -1,    61,    54,    -1,     1,
-      54,    -1,    -1,    79,    75,    76,    -1,    77,    -1,    76,
-      52,    77,    -1,    76,    54,    -1,    -1,    77,    80,    -1,
-      77,    45,    -1,    77,    13,    80,    -1,    77,    14,     4,
-      -1,    77,    15,    55,    -1,    49,    -1,    46,    -1,    50,
-      -1,    78,    -1,    81,    -1,     3,    -1,     3,    -1,    -1,
-      51,    47,    -1
+      59,     0,    -1,    60,    50,    77,    91,    -1,    -1,    60,
+      61,    -1,    62,    -1,    52,    -1,    17,    -1,    19,    84,
+      85,    -1,    20,    -1,    20,     3,    -1,    21,    -1,    22,
+       4,    -1,    23,     4,    -1,    24,     3,    -1,    24,    47,
+       3,    -1,    25,    -1,    26,    43,    -1,    27,     3,    -1,
+      28,    43,    -1,    29,    -1,    30,     3,    -1,    30,    47,
+       3,    -1,    32,    -1,    33,    -1,    34,     3,    -1,    34,
+      47,     3,    -1,    35,    43,    -1,    36,    -1,    37,     3,
+      -1,    38,     3,    -1,    40,    -1,    41,    -1,    42,    -1,
+      53,    -1,    67,    -1,    64,    -1,    39,    89,    -1,     8,
+      43,    73,    -1,     9,    43,    73,    -1,    18,    -1,    31,
+      -1,    16,    86,    -1,    16,    48,    86,    -1,    -1,    48,
+      -1,    57,    63,    86,    -1,    -1,     6,    65,    76,    -1,
+      -1,     5,    66,    76,    -1,     7,    54,    72,    -1,    68,
+      69,    70,    -1,    10,    -1,    11,    -1,    12,    -1,    -1,
+      54,    -1,    71,    -1,    70,    71,    -1,    89,    -1,    89,
+       4,    -1,    89,    -1,    72,    89,    -1,    74,    -1,    73,
+      74,    -1,    89,    -1,    54,    -1,    55,    -1,    56,    -1,
+      54,    -1,    87,    -1,    87,     4,    -1,    87,    90,    -1,
+      87,     4,    90,    -1,    75,    -1,    76,    75,    -1,    78,
+      -1,    77,    78,    -1,    79,    -1,    62,    53,    -1,     1,
+      53,    -1,    -1,    88,    83,    80,    81,    -1,    82,    -1,
+      81,    51,    82,    -1,    81,    53,    -1,    -1,    82,    89,
+      83,    -1,    82,    43,    83,    -1,    82,    13,    89,    -1,
+      82,    14,     4,    -1,    82,    15,    54,    -1,    -1,    44,
+      -1,    48,    -1,     3,    -1,    -1,    48,    -1,     3,    -1,
+      43,    -1,    48,    -1,    45,    -1,    49,    -1,    87,    -1,
+      90,    -1,     3,    -1,    -1,    50,    46,    -1
 };
 
 /* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
 static const yytype_uint16 yyrline[] =
 {
-       0,   202,   202,   210,   212,   216,   217,   221,   227,   233,
-     234,   239,   240,   241,   247,   248,   249,   250,   251,   256,
-     260,   261,   262,   263,   264,   265,   266,   267,   268,   269,
-     270,   276,   277,   278,   279,   283,   284,   285,   289,   297,
-     305,   309,   323,   324,   328,   350,   350,   355,   355,   360,
-     370,   385,   386,   387,   391,   392,   397,   398,   403,   407,
-     412,   418,   424,   435,   436,   445,   446,   452,   453,   454,
-     461,   461,   465,   466,   467,   472,   473,   475,   477,   479,
-     481,   494,   496,   505,   510,   511,   516,   525,   530,   532
+       0,   208,   208,   216,   218,   222,   223,   233,   234,   239,
+     240,   245,   246,   247,   248,   249,   250,   255,   264,   265,
+     266,   267,   268,   269,   270,   271,   272,   273,   274,   289,
+     290,   314,   315,   316,   317,   321,   322,   323,   327,   334,
+     341,   345,   349,   356,   371,   372,   376,   388,   388,   393,
+     393,   398,   409,   424,   425,   426,   430,   431,   436,   438,
+     443,   444,   449,   451,   456,   457,   461,   462,   463,   464,
+     469,   474,   479,   485,   491,   502,   503,   512,   513,   519,
+     520,   521,   528,   528,   533,   534,   535,   540,   542,   544,
+     546,   548,   550,   555,   557,   568,   569,   574,   575,   576,
+     585,   605,   607,   616,   621,   622,   627,   634,   636
 };
 #endif
 
@@ -668,23 +689,25 @@ static const char *const yytname[] =
   "\"end of file\"", "error", "$undefined", "\"string\"", "\"integer\"",
   "\"%token\"", "\"%nterm\"", "\"%type\"", "\"%destructor\"",
   "\"%printer\"", "\"%left\"", "\"%right\"", "\"%nonassoc\"", "\"%prec\"",
-  "\"%dprec\"", "\"%merge\"", "\"%after-header\"", "\"%before-header\"",
-  "\"%debug\"", "\"%default-prec\"", "\"%define\"", "\"%defines\"",
-  "\"%end-header\"", "\"%error-verbose\"", "\"%expect\"", "\"%expect-rr\"",
-  "\"%file-prefix\"", "\"%glr-parser\"", "\"%initial-action\"",
-  "\"%lex-param\"", "\"%locations\"", "\"%name-prefix\"",
-  "\"%no-default-prec\"", "\"%no-lines\"", "\"%nondeterministic-parser\"",
-  "\"%output\"", "\"%parse-param\"", "\"%pure-parser\"", "\"%require\"",
-  "\"%skeleton\"", "\"%start\"", "\"%start-header\"", "\"%token-table\"",
-  "\"%verbose\"", "\"%yacc\"", "\"{...}\"", "\"char\"", "\"epilogue\"",
-  "\"=\"", "\"identifier\"", "\"identifier:\"", "\"%%\"", "\"|\"",
-  "\"%{...%}\"", "\";\"", "\"type\"", "\"%union\"", "$accept", "input",
-  "declarations", "declaration", "grammar_declaration", "union_name",
-  "symbol_declaration", "@1", "@2", "precedence_declaration",
-  "precedence_declarator", "type.opt", "symbols.1", "symbol_def",
-  "symbol_defs.1", "grammar", "rules_or_grammar_declaration", "rules",
-  "@3", "rhses.1", "rhs", "id", "id_colon", "symbol", "string_as_id",
-  "string_content", "epilogue.opt", 0
+  "\"%dprec\"", "\"%merge\"", "\"%code\"", "\"%debug\"",
+  "\"%default-prec\"", "\"%define\"", "\"%defines\"", "\"%error-verbose\"",
+  "\"%expect\"", "\"%expect-rr\"", "\"%file-prefix\"", "\"%glr-parser\"",
+  "\"%initial-action\"", "\"%language\"", "\"%lex-param\"",
+  "\"%locations\"", "\"%name-prefix\"", "\"%no-default-prec\"",
+  "\"%no-lines\"", "\"%nondeterministic-parser\"", "\"%output\"",
+  "\"%parse-param\"", "\"%pure-parser\"", "\"%require\"", "\"%skeleton\"",
+  "\"%start\"", "\"%token-table\"", "\"%verbose\"", "\"%yacc\"",
+  "\"{...}\"", "\"[identifier]\"", "\"char\"", "\"epilogue\"", "\"=\"",
+  "\"identifier\"", "\"identifier:\"", "\"%%\"", "\"|\"", "\"%{...%}\"",
+  "\";\"", "\"type\"", "\"<*>\"", "\"<>\"", "\"%union\"", "$accept",
+  "input", "prologue_declarations", "prologue_declaration",
+  "grammar_declaration", "union_name", "symbol_declaration", "$@1", "$@2",
+  "precedence_declaration", "precedence_declarator", "type.opt",
+  "symbols.prec", "symbol.prec", "symbols.1", "generic_symlist",
+  "generic_symlist_item", "symbol_def", "symbol_defs.1", "grammar",
+  "rules_or_grammar_declaration", "rules", "$@3", "rhses.1", "rhs",
+  "named_ref.opt", "variable", "content.opt", "braceless", "id",
+  "id_colon", "symbol", "string_as_id", "epilogue.opt", 0
 };
 #endif
 
@@ -698,164 +721,175 @@ static const yytype_uint16 yytoknum[] =
      275,   276,   277,   278,   279,   280,   281,   282,   283,   284,
      285,   286,   287,   288,   289,   290,   291,   292,   293,   294,
      295,   296,   297,   298,   299,   300,   301,   302,   303,   304,
-     305,   306,   307,   308,   309,   310,   311
+     305,   306,   307,   308,   309,   310,   311,   312
 };
 # endif
 
 /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
 static const yytype_uint8 yyr1[] =
 {
-       0,    57,    58,    59,    59,    60,    60,    60,    60,    60,
-      60,    60,    60,    60,    60,    60,    60,    60,    60,    60,
-      60,    60,    60,    60,    60,    60,    60,    60,    60,    60,
-      60,    60,    60,    60,    60,    61,    61,    61,    61,    61,
-      61,    61,    62,    62,    61,    64,    63,    65,    63,    63,
-      66,    67,    67,    67,    68,    68,    69,    69,    70,    70,
-      70,    70,    70,    71,    71,    72,    72,    73,    73,    73,
-      75,    74,    76,    76,    76,    77,    77,    77,    77,    77,
-      77,    78,    78,    79,    80,    80,    81,    82,    83,    83
+       0,    58,    59,    60,    60,    61,    61,    61,    61,    61,
+      61,    61,    61,    61,    61,    61,    61,    61,    61,    61,
+      61,    61,    61,    61,    61,    61,    61,    61,    61,    61,
+      61,    61,    61,    61,    61,    62,    62,    62,    62,    62,
+      62,    62,    62,    62,    63,    63,    62,    65,    64,    66,
+      64,    64,    67,    68,    68,    68,    69,    69,    70,    70,
+      71,    71,    72,    72,    73,    73,    74,    74,    74,    74,
+      75,    75,    75,    75,    75,    76,    76,    77,    77,    78,
+      78,    78,    80,    79,    81,    81,    81,    82,    82,    82,
+      82,    82,    82,    83,    83,    84,    84,    85,    85,    85,
+      86,    87,    87,    88,    89,    89,    90,    91,    91
 };
 
 /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
 static const yytype_uint8 yyr2[] =
 {
-       0,     2,     4,     0,     2,     1,     1,     2,     2,     1,
-       2,     3,     1,     2,     1,     2,     2,     3,     1,     2,
-       2,     1,     3,     1,     1,     3,     2,     1,     2,     2,
+       0,     2,     4,     0,     2,     1,     1,     1,     3,     1,
+       2,     1,     2,     2,     2,     3,     1,     2,     2,     2,
+       1,     2,     3,     1,     1,     2,     3,     2,     1,     2,
        2,     1,     1,     1,     1,     1,     1,     2,     3,     3,
-       1,     1,     0,     1,     3,     0,     3,     0,     3,     3,
-       3,     1,     1,     1,     0,     1,     1,     2,     1,     1,
-       2,     2,     3,     1,     2,     1,     2,     1,     2,     2,
-       0,     3,     1,     3,     2,     0,     2,     2,     3,     3,
-       3,     1,     1,     1,     1,     1,     1,     1,     0,     2
+       1,     1,     2,     3,     0,     1,     3,     0,     3,     0,
+       3,     3,     3,     1,     1,     1,     0,     1,     1,     2,
+       1,     2,     1,     2,     1,     2,     1,     1,     1,     1,
+       1,     1,     2,     2,     3,     1,     2,     1,     2,     1,
+       2,     2,     0,     4,     1,     3,     2,     0,     3,     3,
+       3,     3,     3,     0,     1,     1,     1,     0,     1,     1,
+       1,     1,     1,     1,     1,     1,     1,     0,     2
 };
 
-/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
-   STATE-NUM when YYTABLE doesn't specify something else to do.  Zero
+/* YYDEFACT[STATE-NAME] -- Default reduction number in state STATE-NUM.
+   Performed when YYTABLE doesn't specify something else to do.  Zero
    means the default is an error.  */
 static const yytype_uint8 yydefact[] =
 {
-       3,     0,     0,     1,    47,    45,     0,     0,     0,    51,
-      52,    53,     0,     0,     9,    40,     0,    12,     0,    14,
-       0,     0,     0,    18,     0,     0,    21,     0,    41,    23,
-      24,     0,     0,    27,     0,     0,     0,     0,    31,    32,
-      33,     0,     6,    34,    42,     4,     5,    36,    35,    54,
-       0,     0,     0,     0,     0,     7,     8,    87,    10,    13,
-      15,    16,     0,    19,    20,     0,     0,    26,    28,    29,
-      86,    82,    81,    84,    37,    85,    30,     0,    83,     0,
-       0,    65,    67,    70,    43,     0,    55,     0,    58,    63,
-      48,    59,    46,    49,    56,    38,    39,    11,    17,    22,
-      25,    69,    68,     0,    66,     2,    75,    44,    50,    64,
-      60,    61,    57,    89,    71,    72,    62,    75,    74,     0,
-       0,     0,    77,    76,    73,    78,    79,    80
+       3,     0,     0,     1,    49,    47,     0,     0,     0,    53,
+      54,    55,     0,     7,    40,     0,     9,    11,     0,     0,
+       0,    16,     0,     0,     0,    20,     0,    41,    23,    24,
+       0,     0,    28,     0,     0,     0,    31,    32,    33,     0,
+       6,    34,    44,     4,     5,    36,    35,    56,     0,     0,
+       0,     0,     0,   100,     0,    42,    96,    95,    97,    10,
+      12,    13,    14,     0,    17,    18,    19,    21,     0,    25,
+       0,    27,    29,    30,   106,   102,   101,   104,    37,   105,
+       0,   103,     0,     0,    77,    79,    93,    45,     0,    57,
+       0,    70,    75,    50,    71,    48,    51,    62,    67,    68,
+      69,    38,    64,    66,    39,    43,    99,    98,     8,    15,
+      22,    26,    81,    80,     0,    78,     2,    94,    82,    46,
+      52,    58,    60,    76,    72,    73,    63,    65,   108,    87,
+      59,    61,    74,    83,    84,    87,    86,     0,     0,     0,
+      93,    93,    85,    90,    91,    92,    89,    88
 };
 
 /* YYDEFGOTO[NTERM-NUM].  */
-static const yytype_int8 yydefgoto[] =
+static const yytype_int16 yydefgoto[] =
 {
-      -1,     1,     2,    45,    79,    85,    47,    51,    50,    48,
-      49,    87,    93,    89,    90,    80,    81,    82,   106,   114,
-     115,    73,    83,    94,    75,    58,   105
+      -1,     1,     2,    43,    82,    88,    45,    49,    48,    46,
+      47,    90,   120,   121,    96,   101,   102,    92,    93,    83,
+      84,    85,   129,   133,   134,   118,    58,   108,    55,    77,
+      86,   103,    79,   116
 };
 
 /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
    STATE-NUM.  */
-#define YYPACT_NINF -76
+#define YYPACT_NINF -91
 static const yytype_int16 yypact[] =
 {
-     -76,     6,   136,   -76,   -76,   -76,   -40,   -12,    -9,   -76,
-     -76,   -76,    -5,     1,   -76,   -76,    40,   -76,     5,   -76,
-      47,    50,     7,   -76,    11,    18,   -76,    19,   -76,   -76,
-     -76,    20,    25,   -76,    40,    40,    -2,    26,   -76,   -76,
-     -76,    84,   -76,   -76,    27,   -76,   -76,   -76,   -76,    14,
-     -23,   -23,    -2,    -2,    -2,   -76,   -76,   -76,    40,   -76,
-     -76,   -76,    40,   -76,   -76,    40,    40,   -76,   -76,   -76,
-     -76,   -76,   -76,   -76,   -76,   -76,   -76,    21,   -76,    23,
-       2,   -76,   -76,   -76,   -76,    28,   -76,    -2,   -76,   -76,
-     -23,    24,   -23,    -2,   -76,    -2,    -2,   -76,   -76,   -76,
-     -76,   -76,   -76,    31,   -76,   -76,   -76,   -76,    -2,   -76,
-      71,   -76,   -76,   -76,   -32,    16,   -76,   -76,   -76,    -2,
-      76,    29,   -76,   -76,    16,   -76,   -76,   -76
+     -91,     3,   103,   -91,   -91,   -91,   -36,     2,    10,   -91,
+     -91,   -91,     9,   -91,   -91,    32,    60,   -91,    65,    67,
+      27,   -91,    41,    73,    51,   -91,    39,   -91,   -91,   -91,
+      40,    52,   -91,    93,    95,    33,   -91,   -91,   -91,    15,
+     -91,   -91,    53,   -91,   -91,   -91,   -91,    46,    43,    43,
+      33,    11,    11,   -91,    61,   -91,   -91,   -91,    35,   -91,
+     -91,   -91,   -91,   100,   -91,   -91,   -91,   -91,   102,   -91,
+     113,   -91,   -91,   -91,   -91,   -91,   -91,   -91,   -91,   -91,
+      64,   -91,    94,     1,   -91,   -91,    62,   -91,    61,   -91,
+      33,   -91,   -91,    43,    86,    43,    33,   -91,   -91,   -91,
+     -91,    11,   -91,   -91,    11,   -91,   -91,   -91,   -91,   -91,
+     -91,   -91,   -91,   -91,    72,   -91,   -91,   -91,   -91,   -91,
+      33,   -91,   142,   -91,   145,   -91,   -91,   -91,   -91,   -91,
+     -91,   -91,   -91,    17,    34,   -91,   -91,    33,   146,    97,
+      62,    62,    34,   -91,   -91,   -91,   -91,   -91
 };
 
 /* YYPGOTO[NTERM-NUM].  */
-static const yytype_int8 yypgoto[] =
+static const yytype_int16 yypgoto[] =
 {
-     -76,   -76,   -76,   -76,    79,   -76,   -76,   -76,   -76,   -76,
-     -76,   -76,   -49,   -53,    35,   -76,    17,   -76,   -76,   -76,
-     -35,   -26,   -76,   -36,   -75,   -17,   -76
+     -91,   -91,   -91,   -91,   147,   -91,   -91,   -91,   -91,   -91,
+     -91,   -91,   -91,    37,   -91,   106,   -60,   -33,   105,   -91,
+      69,   -91,   -91,   -91,    24,   -48,   -91,   -91,   -49,   -20,
+     -91,   -35,   -90,   -91
 };
 
 /* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
    positive, shift that token.  If negative, reduce the rule which
-   number is the opposite.  If zero, do what YYDEFACT says.
-   If YYTABLE_NINF, syntax error.  */
-#define YYTABLE_NINF -89
-static const yytype_int8 yytable[] =
+   number is the opposite.  If YYTABLE_NINF, syntax error.  */
+#define YYTABLE_NINF -108
+static const yytype_int16 yytable[] =
 {
-      74,    70,   -88,    77,    95,    96,     3,     4,     5,     6,
-       7,     8,     9,    10,    11,    52,   111,    68,    69,    70,
-     117,    15,   118,    71,    91,    91,    72,    70,   110,   119,
-     120,   121,    88,    53,    28,   116,    54,   109,   108,   109,
-      55,    97,    36,    57,    71,    98,    56,    72,    99,   100,
-      59,    60,    78,   103,    61,    62,    63,   112,    44,   112,
-     112,   122,    71,    64,    91,    72,    91,    65,    66,    86,
-      67,    76,   112,   107,    70,   101,    84,   102,   113,   123,
-     126,    46,   124,   125,   127,    77,    92,     0,   123,     4,
-       5,     6,     7,     8,     9,    10,    11,   104,     0,     0,
-       0,     0,     0,    15,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,    28,     0,     0,     0,
-       0,     0,     0,     0,    36,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,    78,     0,     0,     0,     0,     0,
-      44,     4,     5,     6,     7,     8,     9,    10,    11,     0,
-       0,     0,    12,    13,    14,    15,    16,    17,    18,    19,
-      20,    21,    22,    23,    24,    25,    26,    27,    28,    29,
-      30,    31,    32,    33,    34,    35,    36,    37,    38,    39,
-      40,     0,     0,     0,     0,     0,     0,    41,     0,    42,
-      43,     0,    44
+      78,  -107,    80,     3,   125,   105,     4,     5,     6,     7,
+       8,     9,    10,    11,    74,    97,    80,    12,    50,    14,
+       4,     5,     6,     7,     8,     9,    10,    11,    94,    94,
+      62,    12,    27,    14,   132,    56,    74,    74,   106,   119,
+      35,   127,    67,    69,   127,    51,    27,   137,   138,   139,
+      81,   114,    53,    52,    35,   122,    75,    54,    42,    76,
+     123,   126,   123,    59,    81,    98,    99,   100,   135,    60,
+     136,    61,    42,    94,    63,    94,    65,   140,    75,    75,
+      57,    76,    76,   107,    64,   122,    68,    70,    75,    74,
+     124,    76,   146,   147,    66,    71,    72,    91,    73,   141,
+      89,    87,   143,   109,    53,   110,   117,   141,     4,     5,
+       6,     7,     8,     9,    10,    11,   111,   112,   128,    12,
+      13,    14,    15,    16,    17,    18,    19,    20,    21,    22,
+      23,    24,    25,    26,    27,    28,    29,    30,    31,    32,
+      33,    34,    35,    36,    37,    38,   131,   113,    74,    44,
+     144,   145,   115,    39,    95,    40,    41,   130,   104,   142,
+      42
 };
 
-static const yytype_int8 yycheck[] =
+#define yypact_value_is_default(yystate) \
+  ((yystate) == (-91))
+
+#define yytable_value_is_error(yytable_value) \
+  YYID (0)
+
+static const yytype_uint8 yycheck[] =
 {
-      36,     3,     0,     1,    53,    54,     0,     5,     6,     7,
-       8,     9,    10,    11,    12,    55,    91,    34,    35,     3,
-      52,    19,    54,    46,    50,    51,    49,     3,     4,    13,
-      14,    15,    55,    45,    32,   110,    45,    90,    87,    92,
-      45,    58,    40,     3,    46,    62,    45,    49,    65,    66,
-      45,     4,    50,    51,     4,    48,    45,    93,    56,    95,
-      96,    45,    46,    45,    90,    49,    92,    48,    48,    55,
-      45,    45,   108,    45,     3,    54,    49,    54,    47,   115,
-       4,     2,   117,   119,    55,     1,    51,    -1,   124,     5,
-       6,     7,     8,     9,    10,    11,    12,    80,    -1,    -1,
-      -1,    -1,    -1,    19,    -1,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    -1,    -1,    32,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    40,    -1,    -1,    -1,    -1,    -1,
-      -1,    -1,    -1,    -1,    50,    -1,    -1,    -1,    -1,    -1,
-      56,     5,     6,     7,     8,     9,    10,    11,    12,    -1,
-      -1,    -1,    16,    17,    18,    19,    20,    21,    22,    23,
-      24,    25,    26,    27,    28,    29,    30,    31,    32,    33,
-      34,    35,    36,    37,    38,    39,    40,    41,    42,    43,
-      44,    -1,    -1,    -1,    -1,    -1,    -1,    51,    -1,    53,
-      54,    -1,    56
+      35,     0,     1,     0,    94,    54,     5,     6,     7,     8,
+       9,    10,    11,    12,     3,    50,     1,    16,    54,    18,
+       5,     6,     7,     8,     9,    10,    11,    12,    48,    49,
+       3,    16,    31,    18,   124,     3,     3,     3,     3,    88,
+      39,   101,     3,     3,   104,    43,    31,    13,    14,    15,
+      49,    50,    43,    43,    39,    90,    45,    48,    57,    48,
+      93,    96,    95,     3,    49,    54,    55,    56,    51,     4,
+      53,     4,    57,    93,    47,    95,     3,    43,    45,    45,
+      48,    48,    48,    48,    43,   120,    47,    47,    45,     3,
+       4,    48,   140,   141,    43,    43,     3,    54,     3,   134,
+      54,    48,   137,     3,    43,     3,    44,   142,     5,     6,
+       7,     8,     9,    10,    11,    12,     3,    53,    46,    16,
+      17,    18,    19,    20,    21,    22,    23,    24,    25,    26,
+      27,    28,    29,    30,    31,    32,    33,    34,    35,    36,
+      37,    38,    39,    40,    41,    42,     4,    53,     3,     2,
+       4,    54,    83,    50,    49,    52,    53,   120,    52,   135,
+      57
 };
 
 /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
    symbol of state STATE-NUM.  */
 static const yytype_uint8 yystos[] =
 {
-       0,    58,    59,     0,     5,     6,     7,     8,     9,    10,
+       0,    59,    60,     0,     5,     6,     7,     8,     9,    10,
       11,    12,    16,    17,    18,    19,    20,    21,    22,    23,
       24,    25,    26,    27,    28,    29,    30,    31,    32,    33,
-      34,    35,    36,    37,    38,    39,    40,    41,    42,    43,
-      44,    51,    53,    54,    56,    60,    61,    63,    66,    67,
-      65,    64,    55,    45,    45,    45,    45,     3,    82,    45,
-       4,     4,    48,    45,    45,    48,    48,    45,    82,    82,
-       3,    46,    49,    78,    80,    81,    45,     1,    50,    61,
-      72,    73,    74,    79,    49,    62,    55,    68,    55,    70,
-      71,    78,    71,    69,    80,    69,    69,    82,    82,    82,
-      82,    54,    54,    51,    73,    83,    75,    45,    69,    70,
-       4,    81,    80,    47,    76,    77,    81,    52,    54,    13,
-      14,    15,    45,    80,    77,    80,     4,    55
+      34,    35,    36,    37,    38,    39,    40,    41,    42,    50,
+      52,    53,    57,    61,    62,    64,    67,    68,    66,    65,
+      54,    43,    43,    43,    48,    86,     3,    48,    84,     3,
+       4,     4,     3,    47,    43,     3,    43,     3,    47,     3,
+      47,    43,     3,     3,     3,    45,    48,    87,    89,    90,
+       1,    49,    62,    77,    78,    79,    88,    48,    63,    54,
+      69,    54,    75,    76,    87,    76,    72,    89,    54,    55,
+      56,    73,    74,    89,    73,    86,     3,    48,    85,     3,
+       3,     3,    53,    53,    50,    78,    91,    44,    83,    86,
+      70,    71,    89,    75,     4,    90,    89,    74,    46,    80,
+      71,     4,    90,    81,    82,    51,    53,    13,    14,    15,
+      43,    89,    82,    89,     4,    54,    83,    83
 };
 
 #define yyerrok		(yyerrstatus = 0)
@@ -870,9 +904,18 @@ static const yytype_uint8 yystos[] =
 
 /* Like YYERROR except do call yyerror.  This remains here temporarily
    to ease the transition to the new meaning of YYERROR, for GCC.
-   Once GCC version 2 has supplanted version 1, this can go.  */
+   Once GCC version 2 has supplanted version 1, this can go.  However,
+   YYFAIL appears to be in use.  Nevertheless, it is formally deprecated
+   in Bison 2.4.2's NEWS entry, where a plan to phase it out is
+   discussed.  */
 
 #define YYFAIL		goto yyerrlab
+#if defined YYFAIL
+  /* This is here to suppress warnings from the GCC cpp's
+     -Wunused-macros.  Normally we don't worry about that warning, but
+     some users do, and we want to make it easy for users to remove
+     YYFAIL uses, which will produce warnings from Bison 2.5.  */
+#endif
 
 #define YYRECOVERING()  (!!yyerrstatus)
 
@@ -882,7 +925,6 @@ do								\
     {								\
       yychar = (Token);						\
       yylval = (Value);						\
-      yytoken = YYTRANSLATE (yychar);				\
       YYPOPSTACK (1);						\
       goto yybackup;						\
     }								\
@@ -929,7 +971,7 @@ while (YYID (0))
    we won't break user code: when these are the locations we know.  */
 
 #ifndef YY_LOCATION_PRINT
-# if YYLTYPE_IS_TRIVIAL
+# if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
 #  define YY_LOCATION_PRINT(File, Loc)			\
      fprintf (File, "%d.%d-%d.%d",			\
 	      (Loc).first_line, (Loc).first_column,	\
@@ -1004,102 +1046,166 @@ yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp)
   switch (yytype)
     {
       case 3: /* "\"string\"" */
-/* Line 668 of yacc.c.  */
-#line 181 "../../src/parse-gram.y"
+
+/* Line 797 of yacc.c  */
+#line 183 "parse-gram.y"
 	{ fputs (quotearg_style (c_quoting_style, (yyvaluep->chars)), stderr); };
-/* Line 668 of yacc.c.  */
-#line 1012 "../../src/parse-gram.c"
+
+/* Line 797 of yacc.c  */
+#line 1056 "parse-gram.c"
 	break;
       case 4: /* "\"integer\"" */
-/* Line 668 of yacc.c.  */
-#line 191 "../../src/parse-gram.y"
+
+/* Line 797 of yacc.c  */
+#line 195 "parse-gram.y"
 	{ fprintf (stderr, "%d", (yyvaluep->integer)); };
-/* Line 668 of yacc.c.  */
-#line 1019 "../../src/parse-gram.c"
+
+/* Line 797 of yacc.c  */
+#line 1065 "parse-gram.c"
 	break;
-      case 45: /* "\"{...}\"" */
-/* Line 668 of yacc.c.  */
-#line 183 "../../src/parse-gram.y"
-	{ fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
-/* Line 668 of yacc.c.  */
-#line 1026 "../../src/parse-gram.c"
+      case 43: /* "\"{...}\"" */
+
+/* Line 797 of yacc.c  */
+#line 185 "parse-gram.y"
+	{ fprintf (stderr, "{\n%s\n}", (yyvaluep->code)); };
+
+/* Line 797 of yacc.c  */
+#line 1074 "parse-gram.c"
+	break;
+      case 44: /* "\"[identifier]\"" */
+
+/* Line 797 of yacc.c  */
+#line 190 "parse-gram.y"
+	{ fprintf (stderr, "[%s]", (yyvaluep->uniqstr)); };
+
+/* Line 797 of yacc.c  */
+#line 1083 "parse-gram.c"
 	break;
-      case 46: /* "\"char\"" */
-/* Line 668 of yacc.c.  */
-#line 178 "../../src/parse-gram.y"
+      case 45: /* "\"char\"" */
+
+/* Line 797 of yacc.c  */
+#line 177 "parse-gram.y"
 	{ fputs (char_name ((yyvaluep->character)), stderr); };
-/* Line 668 of yacc.c.  */
-#line 1033 "../../src/parse-gram.c"
+
+/* Line 797 of yacc.c  */
+#line 1092 "parse-gram.c"
 	break;
-      case 47: /* "\"epilogue\"" */
-/* Line 668 of yacc.c.  */
-#line 183 "../../src/parse-gram.y"
+      case 46: /* "\"epilogue\"" */
+
+/* Line 797 of yacc.c  */
+#line 185 "parse-gram.y"
 	{ fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
-/* Line 668 of yacc.c.  */
-#line 1040 "../../src/parse-gram.c"
+
+/* Line 797 of yacc.c  */
+#line 1101 "parse-gram.c"
 	break;
-      case 49: /* "\"identifier\"" */
-/* Line 668 of yacc.c.  */
-#line 187 "../../src/parse-gram.y"
+      case 48: /* "\"identifier\"" */
+
+/* Line 797 of yacc.c  */
+#line 189 "parse-gram.y"
 	{ fputs ((yyvaluep->uniqstr), stderr); };
-/* Line 668 of yacc.c.  */
-#line 1047 "../../src/parse-gram.c"
+
+/* Line 797 of yacc.c  */
+#line 1110 "parse-gram.c"
 	break;
-      case 50: /* "\"identifier:\"" */
-/* Line 668 of yacc.c.  */
-#line 188 "../../src/parse-gram.y"
+      case 49: /* "\"identifier:\"" */
+
+/* Line 797 of yacc.c  */
+#line 191 "parse-gram.y"
 	{ fprintf (stderr, "%s:", (yyvaluep->uniqstr)); };
-/* Line 668 of yacc.c.  */
-#line 1054 "../../src/parse-gram.c"
+
+/* Line 797 of yacc.c  */
+#line 1119 "parse-gram.c"
 	break;
-      case 53: /* "\"%{...%}\"" */
-/* Line 668 of yacc.c.  */
-#line 183 "../../src/parse-gram.y"
+      case 52: /* "\"%{...%}\"" */
+
+/* Line 797 of yacc.c  */
+#line 185 "parse-gram.y"
 	{ fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
-/* Line 668 of yacc.c.  */
-#line 1061 "../../src/parse-gram.c"
+
+/* Line 797 of yacc.c  */
+#line 1128 "parse-gram.c"
 	break;
-      case 55: /* "\"type\"" */
-/* Line 668 of yacc.c.  */
-#line 186 "../../src/parse-gram.y"
+      case 54: /* "\"type\"" */
+
+/* Line 797 of yacc.c  */
+#line 192 "parse-gram.y"
 	{ fprintf (stderr, "<%s>", (yyvaluep->uniqstr)); };
-/* Line 668 of yacc.c.  */
-#line 1068 "../../src/parse-gram.c"
+
+/* Line 797 of yacc.c  */
+#line 1137 "parse-gram.c"
 	break;
-      case 78: /* "id" */
-/* Line 668 of yacc.c.  */
-#line 194 "../../src/parse-gram.y"
+      case 71: /* "symbol.prec" */
+
+/* Line 797 of yacc.c  */
+#line 198 "parse-gram.y"
 	{ fprintf (stderr, "%s", (yyvaluep->symbol)->tag); };
-/* Line 668 of yacc.c.  */
-#line 1075 "../../src/parse-gram.c"
+
+/* Line 797 of yacc.c  */
+#line 1146 "parse-gram.c"
 	break;
-      case 79: /* "id_colon" */
-/* Line 668 of yacc.c.  */
-#line 195 "../../src/parse-gram.y"
-	{ fprintf (stderr, "%s:", (yyvaluep->symbol)->tag); };
-/* Line 668 of yacc.c.  */
-#line 1082 "../../src/parse-gram.c"
+      case 84: /* "variable" */
+
+/* Line 797 of yacc.c  */
+#line 189 "parse-gram.y"
+	{ fputs ((yyvaluep->uniqstr), stderr); };
+
+/* Line 797 of yacc.c  */
+#line 1155 "parse-gram.c"
+	break;
+      case 85: /* "content.opt" */
+
+/* Line 797 of yacc.c  */
+#line 185 "parse-gram.y"
+	{ fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
+
+/* Line 797 of yacc.c  */
+#line 1164 "parse-gram.c"
+	break;
+      case 86: /* "braceless" */
+
+/* Line 797 of yacc.c  */
+#line 185 "parse-gram.y"
+	{ fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
+
+/* Line 797 of yacc.c  */
+#line 1173 "parse-gram.c"
 	break;
-      case 80: /* "symbol" */
-/* Line 668 of yacc.c.  */
-#line 194 "../../src/parse-gram.y"
+      case 87: /* "id" */
+
+/* Line 797 of yacc.c  */
+#line 198 "parse-gram.y"
 	{ fprintf (stderr, "%s", (yyvaluep->symbol)->tag); };
-/* Line 668 of yacc.c.  */
-#line 1089 "../../src/parse-gram.c"
+
+/* Line 797 of yacc.c  */
+#line 1182 "parse-gram.c"
+	break;
+      case 88: /* "id_colon" */
+
+/* Line 797 of yacc.c  */
+#line 199 "parse-gram.y"
+	{ fprintf (stderr, "%s:", (yyvaluep->symbol)->tag); };
+
+/* Line 797 of yacc.c  */
+#line 1191 "parse-gram.c"
 	break;
-      case 81: /* "string_as_id" */
-/* Line 668 of yacc.c.  */
-#line 194 "../../src/parse-gram.y"
+      case 89: /* "symbol" */
+
+/* Line 797 of yacc.c  */
+#line 198 "parse-gram.y"
 	{ fprintf (stderr, "%s", (yyvaluep->symbol)->tag); };
-/* Line 668 of yacc.c.  */
-#line 1096 "../../src/parse-gram.c"
+
+/* Line 797 of yacc.c  */
+#line 1200 "parse-gram.c"
 	break;
-      case 82: /* "string_content" */
-/* Line 668 of yacc.c.  */
-#line 181 "../../src/parse-gram.y"
-	{ fputs (quotearg_style (c_quoting_style, (yyvaluep->chars)), stderr); };
-/* Line 668 of yacc.c.  */
-#line 1103 "../../src/parse-gram.c"
+      case 90: /* "string_as_id" */
+
+/* Line 797 of yacc.c  */
+#line 198 "parse-gram.y"
+	{ fprintf (stderr, "%s", (yyvaluep->symbol)->tag); };
+
+/* Line 797 of yacc.c  */
+#line 1209 "parse-gram.c"
 	break;
       default:
 	break;
@@ -1143,17 +1249,20 @@ yy_symbol_print (yyoutput, yytype, yyvaluep, yylocationp)
 #if (defined __STDC__ || defined __C99__FUNC__ \
      || defined __cplusplus || defined _MSC_VER)
 static void
-yy_stack_print (yytype_int16 *bottom, yytype_int16 *top)
+yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
 #else
 static void
-yy_stack_print (bottom, top)
-    yytype_int16 *bottom;
-    yytype_int16 *top;
+yy_stack_print (yybottom, yytop)
+    yytype_int16 *yybottom;
+    yytype_int16 *yytop;
 #endif
 {
   YYFPRINTF (stderr, "Stack now");
-  for (; bottom <= top; ++bottom)
-    YYFPRINTF (stderr, " %d", *bottom);
+  for (; yybottom <= yytop; yybottom++)
+    {
+      int yybot = *yybottom;
+      YYFPRINTF (stderr, " %d", yybot);
+    }
   YYFPRINTF (stderr, "\n");
 }
 
@@ -1188,11 +1297,11 @@ yy_reduce_print (yyvsp, yylsp, yyrule)
   /* The symbols being reduced.  */
   for (yyi = 0; yyi < yynrhs; yyi++)
     {
-      fprintf (stderr, "   $%d = ", yyi + 1);
+      YYFPRINTF (stderr, "   $%d = ", yyi + 1);
       yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
 		       &(yyvsp[(yyi + 1) - (yynrhs)])
 		       , &(yylsp[(yyi + 1) - (yynrhs)])		       );
-      fprintf (stderr, "\n");
+      YYFPRINTF (stderr, "\n");
     }
 }
 
@@ -1332,111 +1441,121 @@ yytnamerr (char *yyres, const char *yystr)
 }
 # endif
 
-/* Copy into YYRESULT an error message about the unexpected token
-   YYCHAR while in state YYSTATE.  Return the number of bytes copied,
-   including the terminating null byte.  If YYRESULT is null, do not
-   copy anything; just return the number of bytes that would be
-   copied.  As a special case, return 0 if an ordinary "syntax error"
-   message will do.  Return YYSIZE_MAXIMUM if overflow occurs during
-   size calculation.  */
-static YYSIZE_T
-yysyntax_error (char *yyresult, int yystate, int yychar)
+/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
+   about the unexpected token YYTOKEN while in state YYSTATE.
+
+   Return 0 if *YYMSG was successfully written.  Return 1 if an ordinary
+   "syntax error" message will suffice instead.  Return 2 if *YYMSG is
+   not large enough to hold the message.  In the last case, also set
+   *YYMSG_ALLOC to either (a) the required number of bytes or (b) zero
+   if the required number of bytes is too large to store.  */
+static int
+yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
+                int yystate, int yytoken)
 {
   int yyn = yypact[yystate];
 
   if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
-    return 0;
+    return 1;
   else
     {
-      int yytype = YYTRANSLATE (yychar);
-      YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
+      YYSIZE_T yysize0 = yytnamerr (0, yytname[yytoken]);
       YYSIZE_T yysize = yysize0;
       YYSIZE_T yysize1;
-      int yysize_overflow = 0;
       enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+      /* Internationalized format string. */
+      const char *yyformat = 0;
+      /* Arguments of yyformat. */
       char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
-      int yyx;
-
-# if 0
-      /* This is so xgettext sees the translatable formats that are
-	 constructed on the fly.  */
-      YY_("syntax error, unexpected %s");
-      YY_("syntax error, unexpected %s, expecting %s");
-      YY_("syntax error, unexpected %s, expecting %s or %s");
-      YY_("syntax error, unexpected %s, expecting %s or %s or %s");
-      YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
-# endif
-      char *yyfmt;
-      char const *yyf;
-      static char const yyunexpected[] = "syntax error, unexpected %s";
-      static char const yyexpecting[] = ", expecting %s";
-      static char const yyor[] = " or %s";
-      char yyformat[sizeof yyunexpected
-		    + sizeof yyexpecting - 1
-		    + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
-		       * (sizeof yyor - 1))];
-      char const *yyprefix = yyexpecting;
 
       /* Start YYX at -YYN if negative to avoid negative indexes in
-	 YYCHECK.  */
+	 YYCHECK.  In other words, skip the first -YYN actions for this
+	 state because they are default actions.  */
       int yyxbegin = yyn < 0 ? -yyn : 0;
 
       /* Stay within bounds of both yycheck and yytname.  */
       int yychecklim = YYLAST - yyn + 1;
       int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
-      int yycount = 1;
+      /* Number of reported tokens (one for the "unexpected", one per
+         "expected"). */
+      int yycount = 0;
+      int yyx;
 
-      yyarg[0] = yytname[yytype];
-      yyfmt = yystpcpy (yyformat, yyunexpected);
+      yyarg[yycount++] = yytname[yytoken];
 
       for (yyx = yyxbegin; yyx < yyxend; ++yyx)
-	if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+	if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR
+	    && !yytable_value_is_error (yytable[yyx + yyn]))
 	  {
 	    if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
 	      {
 		yycount = 1;
 		yysize = yysize0;
-		yyformat[sizeof yyunexpected - 1] = '\0';
 		break;
 	      }
 	    yyarg[yycount++] = yytname[yyx];
 	    yysize1 = yysize + yytnamerr (0, yytname[yyx]);
-	    yysize_overflow |= (yysize1 < yysize);
+	    if (! (yysize <= yysize1
+		   && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+	      {
+		/* Overflow.  */
+		*yymsg_alloc = 0;
+		return 2;
+	      }
 	    yysize = yysize1;
-	    yyfmt = yystpcpy (yyfmt, yyprefix);
-	    yyprefix = yyor;
 	  }
 
-      yyf = YY_(yyformat);
-      yysize1 = yysize + yystrlen (yyf);
-      yysize_overflow |= (yysize1 < yysize);
+      switch (yycount)
+        {
+#define YYCASE_(N, S)                           \
+          case N:                               \
+            yyformat = S;                       \
+          break
+          YYCASE_(1, YY_("syntax error, unexpected %s"));
+          YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
+          YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
+          YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
+          YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
+#undef YYCASE_
+        }
+
+      yysize1 = yysize + yystrlen (yyformat);
+      if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+        {
+          /* Overflow.  */
+          *yymsg_alloc = 0;
+          return 2;
+        }
       yysize = yysize1;
 
-      if (yysize_overflow)
-	return YYSIZE_MAXIMUM;
-
-      if (yyresult)
-	{
-	  /* Avoid sprintf, as that infringes on the user's name space.
-	     Don't have undefined behavior even if the translation
-	     produced a string with the wrong number of "%s"s.  */
-	  char *yyp = yyresult;
-	  int yyi = 0;
-	  while ((*yyp = *yyf) != '\0')
-	    {
-	      if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
-		{
-		  yyp += yytnamerr (yyp, yyarg[yyi++]);
-		  yyf += 2;
-		}
-	      else
-		{
-		  yyp++;
-		  yyf++;
-		}
-	    }
-	}
-      return yysize;
+      if (*yymsg_alloc < yysize)
+        {
+          *yymsg_alloc = 2 * yysize;
+          if (! (yysize <= *yymsg_alloc
+                 && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
+            *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
+          return 2;
+        }
+
+      /* Avoid sprintf, as that infringes on the user's name space.
+         Don't have undefined behavior even if the translation
+         produced a string with the wrong number of "%s"s.  */
+      {
+        char *yyp = *yymsg;
+        int yyi = 0;
+        while ((*yyp = *yyformat) != '\0')
+          if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
+            {
+              yyp += yytnamerr (yyp, yyarg[yyi++]);
+              yyformat += 2;
+            }
+          else
+            {
+              yyp++;
+              yyformat++;
+            }
+      }
+      return 0;
     }
 }
 #endif /* YYERROR_VERBOSE */
@@ -1474,10 +1593,9 @@ yydestruct (yymsg, yytype, yyvaluep, yylocationp)
 	break;
     }
 }
-
 
-/* Prevent warnings from -Wmissing-prototypes.  */
 
+/* Prevent warnings from -Wmissing-prototypes.  */
 #ifdef YYPARSE_PARAM
 #if defined __STDC__ || defined __cplusplus
 int yyparse (void *YYPARSE_PARAM);
@@ -1493,10 +1611,6 @@ int yyparse ();
 #endif /* ! YYPARSE_PARAM */
 
 
-
-
-
-
 /*----------.
 | yyparse.  |
 `----------*/
@@ -1523,103 +1637,114 @@ yyparse ()
 #endif
 #endif
 {
-  /* The lookahead symbol.  */
+/* The lookahead symbol.  */
 int yychar;
 
 /* The semantic value of the lookahead symbol.  */
 YYSTYPE yylval;
 
-/* Number of syntax errors so far.  */
-int yynerrs;
 /* Location data for the lookahead symbol.  */
 YYLTYPE yylloc;
 
-  int yystate;
-  int yyn;
-  int yyresult;
-  /* Number of tokens to shift before error messages enabled.  */
-  int yyerrstatus;
-  /* Lookahead token as an internal (translated) token number.  */
-  int yytoken = 0;
-#if YYERROR_VERBOSE
-  /* Buffer for error messages, and its allocated size.  */
-  char yymsgbuf[128];
-  char *yymsg = yymsgbuf;
-  YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
-#endif
+    /* Number of syntax errors so far.  */
+    int yynerrs;
 
-  /* Three stacks and their tools:
-     `yyss': related to states,
-     `yyvs': related to semantic values,
-     `yyls': related to locations.
+    int yystate;
+    /* Number of tokens to shift before error messages enabled.  */
+    int yyerrstatus;
 
-     Refer to the stacks thru separate pointers, to allow yyoverflow
-     to reallocate them elsewhere.  */
+    /* The stacks and their tools:
+       `yyss': related to states.
+       `yyvs': related to semantic values.
+       `yyls': related to locations.
 
-  /* The state stack.  */
-  yytype_int16 yyssa[YYINITDEPTH];
-  yytype_int16 *yyss = yyssa;
-  yytype_int16 *yyssp;
+       Refer to the stacks thru separate pointers, to allow yyoverflow
+       to reallocate them elsewhere.  */
 
-  /* The semantic value stack.  */
-  YYSTYPE yyvsa[YYINITDEPTH];
-  YYSTYPE *yyvs = yyvsa;
-  YYSTYPE *yyvsp;
+    /* The state stack.  */
+    yytype_int16 yyssa[YYINITDEPTH];
+    yytype_int16 *yyss;
+    yytype_int16 *yyssp;
 
-  /* The location stack.  */
-  YYLTYPE yylsa[YYINITDEPTH];
-  YYLTYPE *yyls = yylsa;
-  YYLTYPE *yylsp;
-  /* The locations where the error started and ended.  */
-  YYLTYPE yyerror_range[2];
+    /* The semantic value stack.  */
+    YYSTYPE yyvsa[YYINITDEPTH];
+    YYSTYPE *yyvs;
+    YYSTYPE *yyvsp;
 
-#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N), yylsp -= (N))
+    /* The location stack.  */
+    YYLTYPE yylsa[YYINITDEPTH];
+    YYLTYPE *yyls;
+    YYLTYPE *yylsp;
+
+    /* The locations where the error started and ended.  */
+    YYLTYPE yyerror_range[3];
 
-  YYSIZE_T yystacksize = YYINITDEPTH;
+    YYSIZE_T yystacksize;
 
+  int yyn;
+  int yyresult;
+  /* Lookahead token as an internal (translated) token number.  */
+  int yytoken;
   /* The variables used to return semantic value and location from the
      action routines.  */
   YYSTYPE yyval;
   YYLTYPE yyloc;
 
+#if YYERROR_VERBOSE
+  /* Buffer for error messages, and its allocated size.  */
+  char yymsgbuf[128];
+  char *yymsg = yymsgbuf;
+  YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
+
+#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N), yylsp -= (N))
+
   /* The number of symbols on the RHS of the reduced rule.
      Keep to zero when no symbol should be popped.  */
   int yylen = 0;
 
+  yytoken = 0;
+  yyss = yyssa;
+  yyvs = yyvsa;
+  yyls = yylsa;
+  yystacksize = YYINITDEPTH;
+
   YYDPRINTF ((stderr, "Starting parse\n"));
 
   yystate = 0;
   yyerrstatus = 0;
   yynerrs = 0;
-  yychar = YYEMPTY;		/* Cause a token to be read.  */
+  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;
   yylsp = yyls;
-#if YYLTYPE_IS_TRIVIAL
+
+#if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
   /* Initialize the default location before parsing starts.  */
   yylloc.first_line   = yylloc.last_line   = 1;
-  yylloc.first_column = yylloc.last_column = 0;
+  yylloc.first_column = yylloc.last_column = 1;
 #endif
 
+/* User initialization code.  */
 
-  /* User initialization code.  */
-  /* Line 1077 of yacc.c.  */
-#line 88 "../../src/parse-gram.y"
+/* Line 1280 of yacc.c  */
+#line 85 "parse-gram.y"
 {
   /* Bison's grammar can initial empty locations, hence a default
      location is needed. */
   boundary_set (&yylloc.start, current_file, 1, 1);
   boundary_set (&yylloc.end, current_file, 1, 1);
 }
-/* Line 1077 of yacc.c.  */
-#line 1622 "../../src/parse-gram.c"
+
+/* Line 1280 of yacc.c  */
+#line 1746 "parse-gram.c"
   yylsp[0] = yylloc;
+
   goto yysetstate;
 
 /*------------------------------------------------------------.
@@ -1656,6 +1781,7 @@ YYLTYPE yylloc;
 		    &yyvs1, yysize * sizeof (*yyvsp),
 		    &yyls1, yysize * sizeof (*yylsp),
 		    &yystacksize);
+
 	yyls = yyls1;
 	yyss = yyss1;
 	yyvs = yyvs1;
@@ -1677,9 +1803,9 @@ YYLTYPE yylloc;
 	  (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
 	if (! yyptr)
 	  goto yyexhaustedlab;
-	YYSTACK_RELOCATE (yyss);
-	YYSTACK_RELOCATE (yyvs);
-	YYSTACK_RELOCATE (yyls);
+	YYSTACK_RELOCATE (yyss_alloc, yyss);
+	YYSTACK_RELOCATE (yyvs_alloc, yyvs);
+	YYSTACK_RELOCATE (yyls_alloc, yyls);
 #  undef YYSTACK_RELOCATE
 	if (yyss1 != yyssa)
 	  YYSTACK_FREE (yyss1);
@@ -1700,6 +1826,9 @@ YYLTYPE yylloc;
 
   YYDPRINTF ((stderr, "Entering state %d\n", yystate));
 
+  if (yystate == YYFINAL)
+    YYACCEPT;
+
   goto yybackup;
 
 /*-----------.
@@ -1712,7 +1841,7 @@ yybackup:
 
   /* First try to decide what to do without reference to lookahead token.  */
   yyn = yypact[yystate];
-  if (yyn == YYPACT_NINF)
+  if (yypact_value_is_default (yyn))
     goto yydefault;
 
   /* Not known => get a lookahead token if don't already have one.  */
@@ -1743,15 +1872,12 @@ yybackup:
   yyn = yytable[yyn];
   if (yyn <= 0)
     {
-      if (yyn == 0 || yyn == YYTABLE_NINF)
+      if (yytable_value_is_error (yyn))
 	goto yyerrlab;
       yyn = -yyn;
       goto yyreduce;
     }
 
-  if (yyn == YYFINAL)
-    YYACCEPT;
-
   /* Count tokens shifted since error; after three, turn off error
      status.  */
   if (yyerrstatus)
@@ -1760,9 +1886,8 @@ yybackup:
   /* Shift the lookahead token.  */
   YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
 
-  /* Discard the shifted token unless it is eof.  */
-  if (yychar != YYEOF)
-    yychar = YYEMPTY;
+  /* Discard the shifted token.  */
+  yychar = YYEMPTY;
 
   yystate = yyn;
   *++yyvsp = yylval;
@@ -1803,398 +1928,565 @@ yyreduce:
   switch (yyn)
     {
         case 6:
-/* Line 1265 of yacc.c.  */
-#line 218 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 224 "parse-gram.y"
     {
-      prologue_augment (translate_code ((yyvsp[(1) - (1)].chars), (yylsp[(1) - (1)])), (yylsp[(1) - (1)]), typed);
+      code_props plain_code;
+      code_props_plain_init (&plain_code, (yyvsp[(1) - (1)].chars), (yylsp[(1) - (1)]));
+      code_props_translate_code (&plain_code);
+      gram_scanner_last_string_free ();
+      muscle_code_grow (union_seen ? "post_prologue" : "pre_prologue",
+                        plain_code.code, (yylsp[(1) - (1)]));
+      code_scanner_last_string_free ();
     }
     break;
 
   case 7:
-/* Line 1265 of yacc.c.  */
-#line 222 "../../src/parse-gram.y"
-    {
-      /* Remove the '{', and replace the '}' with '\n'.  */
-      (yyvsp[(2) - (2)].chars)[strlen ((yyvsp[(2) - (2)].chars)) - 1] = '\n';
-      prologue_augment (translate_code ((yyvsp[(2) - (2)].chars)+1, (yylsp[(2) - (2)])), (yylsp[(2) - (2)]), true);
-    }
+
+/* Line 1493 of yacc.c  */
+#line 233 "parse-gram.y"
+    { debug_flag = true; }
     break;
 
   case 8:
-/* Line 1265 of yacc.c.  */
-#line 228 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 235 "parse-gram.y"
     {
-      /* Remove the '{', and replace the '}' with '\n'.  */
-      (yyvsp[(2) - (2)].chars)[strlen ((yyvsp[(2) - (2)].chars)) - 1] = '\n';
-      prologue_augment (translate_code ((yyvsp[(2) - (2)].chars)+1, (yylsp[(2) - (2)])), (yylsp[(2) - (2)]), false);
+      muscle_percent_define_insert ((yyvsp[(2) - (3)].uniqstr), (yylsp[(2) - (3)]), (yyvsp[(3) - (3)].chars),
+                                    MUSCLE_PERCENT_DEFINE_GRAMMAR_FILE);
     }
     break;
 
   case 9:
-/* Line 1265 of yacc.c.  */
-#line 233 "../../src/parse-gram.y"
-    { debug_flag = true; }
+
+/* Line 1493 of yacc.c  */
+#line 239 "parse-gram.y"
+    { defines_flag = true; }
     break;
 
   case 10:
-/* Line 1265 of yacc.c.  */
-#line 235 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 241 "parse-gram.y"
     {
-      static char one[] = "1";
-      muscle_insert ((yyvsp[(2) - (2)].chars), one);
+      defines_flag = true;
+      spec_defines_file = xstrdup ((yyvsp[(2) - (2)].chars));
     }
     break;
 
   case 11:
-/* Line 1265 of yacc.c.  */
-#line 239 "../../src/parse-gram.y"
-    { muscle_insert ((yyvsp[(2) - (3)].chars), (yyvsp[(3) - (3)].chars)); }
+
+/* Line 1493 of yacc.c  */
+#line 245 "parse-gram.y"
+    { error_verbose = true; }
     break;
 
   case 12:
-/* Line 1265 of yacc.c.  */
-#line 240 "../../src/parse-gram.y"
-    { defines_flag = true; }
+
+/* Line 1493 of yacc.c  */
+#line 246 "parse-gram.y"
+    { expected_sr_conflicts = (yyvsp[(2) - (2)].integer); }
     break;
 
   case 13:
-/* Line 1265 of yacc.c.  */
-#line 242 "../../src/parse-gram.y"
-    {
-      /* Remove the '{', and replace the '}' with '\n'.  */
-      (yyvsp[(2) - (2)].chars)[strlen ((yyvsp[(2) - (2)].chars)) - 1] = '\n';
-      muscle_code_grow ("end_header", translate_code ((yyvsp[(2) - (2)].chars)+1, (yylsp[(2) - (2)])), (yylsp[(2) - (2)]));
-    }
+
+/* Line 1493 of yacc.c  */
+#line 247 "parse-gram.y"
+    { expected_rr_conflicts = (yyvsp[(2) - (2)].integer); }
     break;
 
   case 14:
-/* Line 1265 of yacc.c.  */
-#line 247 "../../src/parse-gram.y"
-    { error_verbose = true; }
-    break;
 
-  case 15:
-/* Line 1265 of yacc.c.  */
-#line 248 "../../src/parse-gram.y"
-    { expected_sr_conflicts = (yyvsp[(2) - (2)].integer); }
+/* Line 1493 of yacc.c  */
+#line 248 "parse-gram.y"
+    { spec_file_prefix = (yyvsp[(2) - (2)].chars); }
     break;
 
-  case 16:
-/* Line 1265 of yacc.c.  */
-#line 249 "../../src/parse-gram.y"
-    { expected_rr_conflicts = (yyvsp[(2) - (2)].integer); }
-    break;
+  case 15:
 
-  case 17:
-/* Line 1265 of yacc.c.  */
-#line 250 "../../src/parse-gram.y"
+/* Line 1493 of yacc.c  */
+#line 249 "parse-gram.y"
     { spec_file_prefix = (yyvsp[(3) - (3)].chars); }
     break;
 
-  case 18:
-/* Line 1265 of yacc.c.  */
-#line 252 "../../src/parse-gram.y"
+  case 16:
+
+/* Line 1493 of yacc.c  */
+#line 251 "parse-gram.y"
     {
       nondeterministic_parser = true;
       glr_parser = true;
     }
     break;
 
-  case 19:
-/* Line 1265 of yacc.c.  */
-#line 257 "../../src/parse-gram.y"
+  case 17:
+
+/* Line 1493 of yacc.c  */
+#line 256 "parse-gram.y"
     {
-      muscle_code_grow ("initial_action", translate_symbol_action ((yyvsp[(2) - (2)].chars), (yylsp[(2) - (2)])), (yylsp[(2) - (2)]));
+      code_props action;
+      code_props_symbol_action_init (&action, (yyvsp[(2) - (2)].code), (yylsp[(2) - (2)]));
+      code_props_translate_code (&action);
+      gram_scanner_last_string_free ();
+      muscle_code_grow ("initial_action", action.code, (yylsp[(2) - (2)]));
+      code_scanner_last_string_free ();
     }
     break;
 
+  case 18:
+
+/* Line 1493 of yacc.c  */
+#line 264 "parse-gram.y"
+    { language_argmatch ((yyvsp[(2) - (2)].chars), grammar_prio, (yylsp[(1) - (2)])); }
+    break;
+
+  case 19:
+
+/* Line 1493 of yacc.c  */
+#line 265 "parse-gram.y"
+    { add_param ("lex_param", (yyvsp[(2) - (2)].code), (yylsp[(2) - (2)])); }
+    break;
+
   case 20:
-/* Line 1265 of yacc.c.  */
-#line 260 "../../src/parse-gram.y"
-    { add_param ("lex_param", (yyvsp[(2) - (2)].chars), (yylsp[(2) - (2)])); }
+
+/* Line 1493 of yacc.c  */
+#line 266 "parse-gram.y"
+    { locations_flag = true; }
     break;
 
   case 21:
-/* Line 1265 of yacc.c.  */
-#line 261 "../../src/parse-gram.y"
-    { locations_flag = true; }
+
+/* Line 1493 of yacc.c  */
+#line 267 "parse-gram.y"
+    { spec_name_prefix = (yyvsp[(2) - (2)].chars); }
     break;
 
   case 22:
-/* Line 1265 of yacc.c.  */
-#line 262 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 268 "parse-gram.y"
     { spec_name_prefix = (yyvsp[(3) - (3)].chars); }
     break;
 
   case 23:
-/* Line 1265 of yacc.c.  */
-#line 263 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 269 "parse-gram.y"
     { no_lines_flag = true; }
     break;
 
   case 24:
-/* Line 1265 of yacc.c.  */
-#line 264 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 270 "parse-gram.y"
     { nondeterministic_parser = true; }
     break;
 
   case 25:
-/* Line 1265 of yacc.c.  */
-#line 265 "../../src/parse-gram.y"
-    { spec_outfile = (yyvsp[(3) - (3)].chars); }
+
+/* Line 1493 of yacc.c  */
+#line 271 "parse-gram.y"
+    { spec_outfile = (yyvsp[(2) - (2)].chars); }
     break;
 
   case 26:
-/* Line 1265 of yacc.c.  */
-#line 266 "../../src/parse-gram.y"
-    { add_param ("parse_param", (yyvsp[(2) - (2)].chars), (yylsp[(2) - (2)])); }
+
+/* Line 1493 of yacc.c  */
+#line 272 "parse-gram.y"
+    { spec_outfile = (yyvsp[(3) - (3)].chars); }
     break;
 
   case 27:
-/* Line 1265 of yacc.c.  */
-#line 267 "../../src/parse-gram.y"
-    { pure_parser = true; }
+
+/* Line 1493 of yacc.c  */
+#line 273 "parse-gram.y"
+    { add_param ("parse_param", (yyvsp[(2) - (2)].code), (yylsp[(2) - (2)])); }
     break;
 
   case 28:
-/* Line 1265 of yacc.c.  */
-#line 268 "../../src/parse-gram.y"
-    { version_check (&(yylsp[(2) - (2)]), (yyvsp[(2) - (2)].chars)); }
+
+/* Line 1493 of yacc.c  */
+#line 275 "parse-gram.y"
+    {
+      /* %pure-parser is deprecated in favor of `%define api.pure', so use
+         `%define api.pure' in a backward-compatible manner here.  First, don't
+         complain if %pure-parser is specified multiple times.  */
+      if (!muscle_find_const ("percent_define(api.pure)"))
+        muscle_percent_define_insert ("api.pure", (yylsp[(1) - (1)]), "",
+                                      MUSCLE_PERCENT_DEFINE_GRAMMAR_FILE);
+      /* In all cases, use api.pure now so that the backend doesn't complain if
+         the skeleton ignores api.pure, but do warn now if there's a previous
+         conflicting definition from an actual %define.  */
+      if (!muscle_percent_define_flag_if ("api.pure"))
+        muscle_percent_define_insert ("api.pure", (yylsp[(1) - (1)]), "",
+                                      MUSCLE_PERCENT_DEFINE_GRAMMAR_FILE);
+    }
     break;
 
   case 29:
-/* Line 1265 of yacc.c.  */
-#line 269 "../../src/parse-gram.y"
-    { skeleton = (yyvsp[(2) - (2)].chars); }
+
+/* Line 1493 of yacc.c  */
+#line 289 "parse-gram.y"
+    { version_check (&(yylsp[(2) - (2)]), (yyvsp[(2) - (2)].chars)); }
     break;
 
   case 30:
-/* Line 1265 of yacc.c.  */
-#line 271 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 291 "parse-gram.y"
     {
-      /* Remove the '{', and replace the '}' with '\n'.  */
-      (yyvsp[(2) - (2)].chars)[strlen ((yyvsp[(2) - (2)].chars)) - 1] = '\n';
-      muscle_code_grow ("start_header", translate_code ((yyvsp[(2) - (2)].chars)+1, (yylsp[(2) - (2)])), (yylsp[(2) - (2)]));
+      char const *skeleton_user = (yyvsp[(2) - (2)].chars);
+      if (strchr (skeleton_user, '/'))
+        {
+          size_t dir_length = strlen (current_file);
+          char *skeleton_build;
+          while (dir_length && current_file[dir_length - 1] != '/')
+            --dir_length;
+          while (dir_length && current_file[dir_length - 1] == '/')
+            --dir_length;
+          skeleton_build =
+            xmalloc (dir_length + 1 + strlen (skeleton_user) + 1);
+          if (dir_length > 0)
+            {
+              strncpy (skeleton_build, current_file, dir_length);
+              skeleton_build[dir_length++] = '/';
+            }
+          strcpy (skeleton_build + dir_length, skeleton_user);
+          skeleton_user = uniqstr_new (skeleton_build);
+          free (skeleton_build);
+        }
+      skeleton_arg (skeleton_user, grammar_prio, (yylsp[(1) - (2)]));
     }
     break;
 
   case 31:
-/* Line 1265 of yacc.c.  */
-#line 276 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 314 "parse-gram.y"
     { token_table_flag = true; }
     break;
 
   case 32:
-/* Line 1265 of yacc.c.  */
-#line 277 "../../src/parse-gram.y"
-    { report_flag = report_states; }
+
+/* Line 1493 of yacc.c  */
+#line 315 "parse-gram.y"
+    { report_flag |= report_states; }
     break;
 
   case 33:
-/* Line 1265 of yacc.c.  */
-#line 278 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 316 "parse-gram.y"
     { yacc_flag = true; }
     break;
 
   case 37:
-/* Line 1265 of yacc.c.  */
-#line 286 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 324 "parse-gram.y"
     {
       grammar_start_symbol_set ((yyvsp[(2) - (2)].symbol), (yylsp[(2) - (2)]));
     }
     break;
 
   case 38:
-/* Line 1265 of yacc.c.  */
-#line 290 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 328 "parse-gram.y"
     {
       symbol_list *list;
-      const char *action = translate_symbol_action ((yyvsp[(2) - (3)].chars), (yylsp[(2) - (3)]));
       for (list = (yyvsp[(3) - (3)].list); list; list = list->next)
- 	symbol_destructor_set (list->sym, action, (yylsp[(2) - (3)]));
+	symbol_list_destructor_set (list, (yyvsp[(2) - (3)].code), (yylsp[(2) - (3)]));
       symbol_list_free ((yyvsp[(3) - (3)].list));
     }
     break;
 
   case 39:
-/* Line 1265 of yacc.c.  */
-#line 298 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 335 "parse-gram.y"
     {
       symbol_list *list;
-      const char *action = translate_symbol_action ((yyvsp[(2) - (3)].chars), (yylsp[(2) - (3)]));
       for (list = (yyvsp[(3) - (3)].list); list; list = list->next)
-	symbol_printer_set (list->sym, action, (yylsp[(2) - (3)]));
+	symbol_list_printer_set (list, (yyvsp[(2) - (3)].code), (yylsp[(2) - (3)]));
       symbol_list_free ((yyvsp[(3) - (3)].list));
     }
     break;
 
   case 40:
-/* Line 1265 of yacc.c.  */
-#line 306 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 342 "parse-gram.y"
     {
       default_prec = true;
     }
     break;
 
   case 41:
-/* Line 1265 of yacc.c.  */
-#line 310 "../../src/parse-gram.y"
+
+/* Line 1493 of yacc.c  */
+#line 346 "parse-gram.y"
     {
       default_prec = false;
     }
     break;
 
   case 42:
-/* Line 1265 of yacc.c.  */
-#line 323 "../../src/parse-gram.y"
-    {}
+
+/* Line 1493 of yacc.c  */
+#line 350 "parse-gram.y"
+    {
+      /* Do not invoke muscle_percent_code_grow here since it invokes
+         muscle_user_name_list_grow.  */
+      muscle_code_grow ("percent_code()", (yyvsp[(2) - (2)].chars), (yylsp[(2) - (2)]));
+      code_scanner_last_string_free ();
+    }
     break;
 
   case 43:
-/* Line 1265 of yacc.c.  */
-#line 324 "../../src/parse-gram.y"
-    { muscle_code_grow ("union_name", (yyvsp[(1) - (1)].uniqstr), (yylsp[(1) - (1)])); }
+
+/* Line 1493 of yacc.c  */
+#line 357 "parse-gram.y"
+    {
+      muscle_percent_code_grow ((yyvsp[(2) - (3)].uniqstr), (yylsp[(2) - (3)]), (yyvsp[(3) - (3)].chars), (yylsp[(3) - (3)]));
+      code_scanner_last_string_free ();
+    }
     break;
 
   case 44:
-/* Line 1265 of yacc.c.  */
-#line 329 "../../src/parse-gram.y"
-    {
-      char const *body = (yyvsp[(3) - (3)].chars);
 
-      if (typed)
-	{
-	  /* Concatenate the union bodies, turning the first one's
-	     trailing '}' into '\n', and omitting the second one's '{'.  */
-	  char *code = muscle_find ("stype");
-	  code[strlen (code) - 1] = '\n';
-	  body++;
-	}
+/* Line 1493 of yacc.c  */
+#line 371 "parse-gram.y"
+    {}
+    break;
+
+  case 45:
+
+/* Line 1493 of yacc.c  */
+#line 372 "parse-gram.y"
+    { muscle_code_grow ("union_name", (yyvsp[(1) - (1)].uniqstr), (yylsp[(1) - (1)])); }
+    break;
+
+  case 46:
 
-      typed = true;
-      muscle_code_grow ("stype", body, (yylsp[(3) - (3)]));
+/* Line 1493 of yacc.c  */
+#line 377 "parse-gram.y"
+    {
+      union_seen = true;
+      muscle_code_grow ("stype", (yyvsp[(3) - (3)].chars), (yylsp[(3) - (3)]));
+      code_scanner_last_string_free ();
     }
     break;
 
-  case 45:
-/* Line 1265 of yacc.c.  */
-#line 350 "../../src/parse-gram.y"
+  case 47:
+
+/* Line 1493 of yacc.c  */
+#line 388 "parse-gram.y"
     { current_class = nterm_sym; }
     break;
 
-  case 46:
-/* Line 1265 of yacc.c.  */
-#line 351 "../../src/parse-gram.y"
+  case 48:
+
+/* Line 1493 of yacc.c  */
+#line 389 "parse-gram.y"
     {
       current_class = unknown_sym;
       current_type = NULL;
     }
     break;
 
-  case 47:
-/* Line 1265 of yacc.c.  */
-#line 355 "../../src/parse-gram.y"
+  case 49:
+
+/* Line 1493 of yacc.c  */
+#line 393 "parse-gram.y"
     { current_class = token_sym; }
     break;
 
-  case 48:
-/* Line 1265 of yacc.c.  */
-#line 356 "../../src/parse-gram.y"
+  case 50:
+
+/* Line 1493 of yacc.c  */
+#line 394 "parse-gram.y"
     {
       current_class = unknown_sym;
       current_type = NULL;
     }
     break;
 
-  case 49:
-/* Line 1265 of yacc.c.  */
-#line 361 "../../src/parse-gram.y"
+  case 51:
+
+/* Line 1493 of yacc.c  */
+#line 399 "parse-gram.y"
     {
       symbol_list *list;
+      tag_seen = true;
       for (list = (yyvsp[(3) - (3)].list); list; list = list->next)
-	symbol_type_set (list->sym, (yyvsp[(2) - (3)].uniqstr), (yylsp[(2) - (3)]));
+	symbol_type_set (list->content.sym, (yyvsp[(2) - (3)].uniqstr), (yylsp[(2) - (3)]));
       symbol_list_free ((yyvsp[(3) - (3)].list));
     }
     break;
 
-  case 50:
-/* Line 1265 of yacc.c.  */
-#line 371 "../../src/parse-gram.y"
+  case 52:
+
+/* Line 1493 of yacc.c  */
+#line 410 "parse-gram.y"
     {
       symbol_list *list;
       ++current_prec;
       for (list = (yyvsp[(3) - (3)].list); list; list = list->next)
 	{
-	  symbol_type_set (list->sym, current_type, (yylsp[(2) - (3)]));
-	  symbol_precedence_set (list->sym, current_prec, (yyvsp[(1) - (3)].assoc), (yylsp[(1) - (3)]));
+	  symbol_type_set (list->content.sym, current_type, (yylsp[(2) - (3)]));
+	  symbol_precedence_set (list->content.sym, current_prec, (yyvsp[(1) - (3)].assoc), (yylsp[(1) - (3)]));
 	}
       symbol_list_free ((yyvsp[(3) - (3)].list));
       current_type = NULL;
     }
     break;
 
-  case 51:
-/* Line 1265 of yacc.c.  */
-#line 385 "../../src/parse-gram.y"
+  case 53:
+
+/* Line 1493 of yacc.c  */
+#line 424 "parse-gram.y"
     { (yyval.assoc) = left_assoc; }
     break;
 
-  case 52:
-/* Line 1265 of yacc.c.  */
-#line 386 "../../src/parse-gram.y"
+  case 54:
+
+/* Line 1493 of yacc.c  */
+#line 425 "parse-gram.y"
     { (yyval.assoc) = right_assoc; }
     break;
 
-  case 53:
-/* Line 1265 of yacc.c.  */
-#line 387 "../../src/parse-gram.y"
+  case 55:
+
+/* Line 1493 of yacc.c  */
+#line 426 "parse-gram.y"
     { (yyval.assoc) = non_assoc; }
     break;
 
-  case 54:
-/* Line 1265 of yacc.c.  */
-#line 391 "../../src/parse-gram.y"
+  case 56:
+
+/* Line 1493 of yacc.c  */
+#line 430 "parse-gram.y"
     { current_type = NULL; }
     break;
 
-  case 55:
-/* Line 1265 of yacc.c.  */
-#line 392 "../../src/parse-gram.y"
-    { current_type = (yyvsp[(1) - (1)].uniqstr); }
+  case 57:
+
+/* Line 1493 of yacc.c  */
+#line 431 "parse-gram.y"
+    { current_type = (yyvsp[(1) - (1)].uniqstr); tag_seen = true; }
     break;
 
-  case 56:
-/* Line 1265 of yacc.c.  */
-#line 397 "../../src/parse-gram.y"
-    { (yyval.list) = symbol_list_new ((yyvsp[(1) - (1)].symbol), (yylsp[(1) - (1)])); }
+  case 58:
+
+/* Line 1493 of yacc.c  */
+#line 437 "parse-gram.y"
+    { (yyval.list) = symbol_list_sym_new ((yyvsp[(1) - (1)].symbol), (yylsp[(1) - (1)])); }
     break;
 
-  case 57:
-/* Line 1265 of yacc.c.  */
-#line 398 "../../src/parse-gram.y"
-    { (yyval.list) = symbol_list_prepend ((yyvsp[(1) - (2)].list), (yyvsp[(2) - (2)].symbol), (yylsp[(2) - (2)])); }
+  case 59:
+
+/* Line 1493 of yacc.c  */
+#line 439 "parse-gram.y"
+    { (yyval.list) = symbol_list_prepend ((yyvsp[(1) - (2)].list), symbol_list_sym_new ((yyvsp[(2) - (2)].symbol), (yylsp[(2) - (2)]))); }
     break;
 
-  case 58:
-/* Line 1265 of yacc.c.  */
-#line 404 "../../src/parse-gram.y"
+  case 60:
+
+/* Line 1493 of yacc.c  */
+#line 443 "parse-gram.y"
+    { (yyval.symbol) = (yyvsp[(1) - (1)].symbol); }
+    break;
+
+  case 61:
+
+/* Line 1493 of yacc.c  */
+#line 444 "parse-gram.y"
+    { (yyval.symbol) = (yyvsp[(1) - (2)].symbol); symbol_user_token_number_set ((yyvsp[(1) - (2)].symbol), (yyvsp[(2) - (2)].integer), (yylsp[(2) - (2)])); }
+    break;
+
+  case 62:
+
+/* Line 1493 of yacc.c  */
+#line 450 "parse-gram.y"
+    { (yyval.list) = symbol_list_sym_new ((yyvsp[(1) - (1)].symbol), (yylsp[(1) - (1)])); }
+    break;
+
+  case 63:
+
+/* Line 1493 of yacc.c  */
+#line 452 "parse-gram.y"
+    { (yyval.list) = symbol_list_prepend ((yyvsp[(1) - (2)].list), symbol_list_sym_new ((yyvsp[(2) - (2)].symbol), (yylsp[(2) - (2)]))); }
+    break;
+
+  case 64:
+
+/* Line 1493 of yacc.c  */
+#line 456 "parse-gram.y"
+    { (yyval.list) = (yyvsp[(1) - (1)].list); }
+    break;
+
+  case 65:
+
+/* Line 1493 of yacc.c  */
+#line 457 "parse-gram.y"
+    { (yyval.list) = symbol_list_prepend ((yyvsp[(1) - (2)].list), (yyvsp[(2) - (2)].list)); }
+    break;
+
+  case 66:
+
+/* Line 1493 of yacc.c  */
+#line 461 "parse-gram.y"
+    { (yyval.list) = symbol_list_sym_new ((yyvsp[(1) - (1)].symbol), (yylsp[(1) - (1)])); }
+    break;
+
+  case 67:
+
+/* Line 1493 of yacc.c  */
+#line 462 "parse-gram.y"
+    { (yyval.list) = symbol_list_type_new ((yyvsp[(1) - (1)].uniqstr), (yylsp[(1) - (1)])); }
+    break;
+
+  case 68:
+
+/* Line 1493 of yacc.c  */
+#line 463 "parse-gram.y"
+    { (yyval.list) = symbol_list_default_tagged_new ((yylsp[(1) - (1)])); }
+    break;
+
+  case 69:
+
+/* Line 1493 of yacc.c  */
+#line 464 "parse-gram.y"
+    { (yyval.list) = symbol_list_default_tagless_new ((yylsp[(1) - (1)])); }
+    break;
+
+  case 70:
+
+/* Line 1493 of yacc.c  */
+#line 470 "parse-gram.y"
     {
        current_type = (yyvsp[(1) - (1)].uniqstr);
+       tag_seen = true;
      }
     break;
 
-  case 59:
-/* Line 1265 of yacc.c.  */
-#line 408 "../../src/parse-gram.y"
+  case 71:
+
+/* Line 1493 of yacc.c  */
+#line 475 "parse-gram.y"
     {
        symbol_class_set ((yyvsp[(1) - (1)].symbol), current_class, (yylsp[(1) - (1)]), true);
        symbol_type_set ((yyvsp[(1) - (1)].symbol), current_type, (yylsp[(1) - (1)]));
      }
     break;
 
-  case 60:
-/* Line 1265 of yacc.c.  */
-#line 413 "../../src/parse-gram.y"
+  case 72:
+
+/* Line 1493 of yacc.c  */
+#line 480 "parse-gram.y"
     {
       symbol_class_set ((yyvsp[(1) - (2)].symbol), current_class, (yylsp[(1) - (2)]), true);
       symbol_type_set ((yyvsp[(1) - (2)].symbol), current_type, (yylsp[(1) - (2)]));
@@ -2202,9 +2494,10 @@ yyreduce:
     }
     break;
 
-  case 61:
-/* Line 1265 of yacc.c.  */
-#line 419 "../../src/parse-gram.y"
+  case 73:
+
+/* Line 1493 of yacc.c  */
+#line 486 "parse-gram.y"
     {
       symbol_class_set ((yyvsp[(1) - (2)].symbol), current_class, (yylsp[(1) - (2)]), true);
       symbol_type_set ((yyvsp[(1) - (2)].symbol), current_type, (yylsp[(1) - (2)]));
@@ -2212,9 +2505,10 @@ yyreduce:
     }
     break;
 
-  case 62:
-/* Line 1265 of yacc.c.  */
-#line 425 "../../src/parse-gram.y"
+  case 74:
+
+/* Line 1493 of yacc.c  */
+#line 492 "parse-gram.y"
     {
       symbol_class_set ((yyvsp[(1) - (3)].symbol), current_class, (yylsp[(1) - (3)]), true);
       symbol_type_set ((yyvsp[(1) - (3)].symbol), current_type, (yylsp[(1) - (3)]));
@@ -2223,77 +2517,140 @@ yyreduce:
     }
     break;
 
-  case 69:
-/* Line 1265 of yacc.c.  */
-#line 455 "../../src/parse-gram.y"
+  case 81:
+
+/* Line 1493 of yacc.c  */
+#line 522 "parse-gram.y"
     {
       yyerrok;
     }
     break;
 
-  case 70:
-/* Line 1265 of yacc.c.  */
-#line 461 "../../src/parse-gram.y"
-    { current_lhs = (yyvsp[(1) - (1)].symbol); current_lhs_location = (yylsp[(1) - (1)]); }
+  case 82:
+
+/* Line 1493 of yacc.c  */
+#line 528 "parse-gram.y"
+    { current_lhs = (yyvsp[(1) - (2)].symbol); current_lhs_location = (yylsp[(1) - (2)]);
+    current_lhs_named_ref = (yyvsp[(2) - (2)].named_ref); }
     break;
 
-  case 72:
-/* Line 1265 of yacc.c.  */
-#line 465 "../../src/parse-gram.y"
+  case 84:
+
+/* Line 1493 of yacc.c  */
+#line 533 "parse-gram.y"
     { grammar_current_rule_end ((yylsp[(1) - (1)])); }
     break;
 
-  case 73:
-/* Line 1265 of yacc.c.  */
-#line 466 "../../src/parse-gram.y"
+  case 85:
+
+/* Line 1493 of yacc.c  */
+#line 534 "parse-gram.y"
     { grammar_current_rule_end ((yylsp[(3) - (3)])); }
     break;
 
-  case 75:
-/* Line 1265 of yacc.c.  */
-#line 472 "../../src/parse-gram.y"
-    { grammar_current_rule_begin (current_lhs, current_lhs_location); }
+  case 87:
+
+/* Line 1493 of yacc.c  */
+#line 540 "parse-gram.y"
+    { grammar_current_rule_begin (current_lhs, current_lhs_location,
+				  current_lhs_named_ref); }
     break;
 
-  case 76:
-/* Line 1265 of yacc.c.  */
-#line 474 "../../src/parse-gram.y"
-    { grammar_current_rule_symbol_append ((yyvsp[(2) - (2)].symbol), (yylsp[(2) - (2)])); }
+  case 88:
+
+/* Line 1493 of yacc.c  */
+#line 543 "parse-gram.y"
+    { grammar_current_rule_symbol_append ((yyvsp[(2) - (3)].symbol), (yylsp[(2) - (3)]), (yyvsp[(3) - (3)].named_ref)); }
     break;
 
-  case 77:
-/* Line 1265 of yacc.c.  */
-#line 476 "../../src/parse-gram.y"
-    { grammar_current_rule_action_append ((yyvsp[(2) - (2)].chars), (yylsp[(2) - (2)])); }
+  case 89:
+
+/* Line 1493 of yacc.c  */
+#line 545 "parse-gram.y"
+    { grammar_current_rule_action_append ((yyvsp[(2) - (3)].code), (yylsp[(2) - (3)]), (yyvsp[(3) - (3)].named_ref)); }
     break;
 
-  case 78:
-/* Line 1265 of yacc.c.  */
-#line 478 "../../src/parse-gram.y"
+  case 90:
+
+/* Line 1493 of yacc.c  */
+#line 547 "parse-gram.y"
     { grammar_current_rule_prec_set ((yyvsp[(3) - (3)].symbol), (yylsp[(3) - (3)])); }
     break;
 
-  case 79:
-/* Line 1265 of yacc.c.  */
-#line 480 "../../src/parse-gram.y"
+  case 91:
+
+/* Line 1493 of yacc.c  */
+#line 549 "parse-gram.y"
     { grammar_current_rule_dprec_set ((yyvsp[(3) - (3)].integer), (yylsp[(3) - (3)])); }
     break;
 
-  case 80:
-/* Line 1265 of yacc.c.  */
-#line 482 "../../src/parse-gram.y"
+  case 92:
+
+/* Line 1493 of yacc.c  */
+#line 551 "parse-gram.y"
     { grammar_current_rule_merge_set ((yyvsp[(3) - (3)].uniqstr), (yylsp[(3) - (3)])); }
     break;
 
-  case 81:
-/* Line 1265 of yacc.c.  */
-#line 495 "../../src/parse-gram.y"
+  case 93:
+
+/* Line 1493 of yacc.c  */
+#line 555 "parse-gram.y"
+    { (yyval.named_ref) = 0; }
+    break;
+
+  case 94:
+
+/* Line 1493 of yacc.c  */
+#line 557 "parse-gram.y"
+    { (yyval.named_ref) = named_ref_new((yyvsp[(1) - (1)].uniqstr), (yylsp[(1) - (1)])); }
+    break;
+
+  case 96:
+
+/* Line 1493 of yacc.c  */
+#line 569 "parse-gram.y"
+    { (yyval.uniqstr) = uniqstr_new ((yyvsp[(1) - (1)].chars)); }
+    break;
+
+  case 97:
+
+/* Line 1493 of yacc.c  */
+#line 574 "parse-gram.y"
+    { (yyval.chars) = ""; }
+    break;
+
+  case 98:
+
+/* Line 1493 of yacc.c  */
+#line 575 "parse-gram.y"
+    { (yyval.chars) = (yyvsp[(1) - (1)].uniqstr); }
+    break;
+
+  case 100:
+
+/* Line 1493 of yacc.c  */
+#line 586 "parse-gram.y"
+    {
+      code_props plain_code;
+      (yyvsp[(1) - (1)].code)[strlen ((yyvsp[(1) - (1)].code)) - 1] = '\n';
+      code_props_plain_init (&plain_code, (yyvsp[(1) - (1)].code)+1, (yylsp[(1) - (1)]));
+      code_props_translate_code (&plain_code);
+      gram_scanner_last_string_free ();
+      (yyval.chars) = plain_code.code;
+    }
+    break;
+
+  case 101:
+
+/* Line 1493 of yacc.c  */
+#line 606 "parse-gram.y"
     { (yyval.symbol) = symbol_from_uniqstr ((yyvsp[(1) - (1)].uniqstr), (yylsp[(1) - (1)])); }
     break;
 
-  case 82:
-/* Line 1265 of yacc.c.  */
-#line 497 "../../src/parse-gram.y"
+  case 102:
+
+/* Line 1493 of yacc.c  */
+#line 608 "parse-gram.y"
     {
       (yyval.symbol) = symbol_get (char_name ((yyvsp[(1) - (1)].character)), (yylsp[(1) - (1)]));
       symbol_class_set ((yyval.symbol), token_sym, (yylsp[(1) - (1)]), false);
@@ -2301,41 +2658,54 @@ yyreduce:
     }
     break;
 
-  case 83:
-/* Line 1265 of yacc.c.  */
-#line 505 "../../src/parse-gram.y"
+  case 103:
+
+/* Line 1493 of yacc.c  */
+#line 616 "parse-gram.y"
     { (yyval.symbol) = symbol_from_uniqstr ((yyvsp[(1) - (1)].uniqstr), (yylsp[(1) - (1)])); }
     break;
 
-  case 86:
-/* Line 1265 of yacc.c.  */
-#line 517 "../../src/parse-gram.y"
+  case 106:
+
+/* Line 1493 of yacc.c  */
+#line 628 "parse-gram.y"
     {
       (yyval.symbol) = symbol_get (quotearg_style (c_quoting_style, (yyvsp[(1) - (1)].chars)), (yylsp[(1) - (1)]));
       symbol_class_set ((yyval.symbol), token_sym, (yylsp[(1) - (1)]), false);
     }
     break;
 
-  case 87:
-/* Line 1265 of yacc.c.  */
-#line 526 "../../src/parse-gram.y"
-    { (yyval.chars) = (yyvsp[(1) - (1)].chars); }
-    break;
+  case 108:
 
-  case 89:
-/* Line 1265 of yacc.c.  */
-#line 533 "../../src/parse-gram.y"
+/* Line 1493 of yacc.c  */
+#line 637 "parse-gram.y"
     {
-      muscle_code_grow ("epilogue", translate_code ((yyvsp[(2) - (2)].chars), (yylsp[(2) - (2)])), (yylsp[(2) - (2)]));
+      code_props plain_code;
+      code_props_plain_init (&plain_code, (yyvsp[(2) - (2)].chars), (yylsp[(2) - (2)]));
+      code_props_translate_code (&plain_code);
       gram_scanner_last_string_free ();
+      muscle_code_grow ("epilogue", plain_code.code, (yylsp[(2) - (2)]));
+      code_scanner_last_string_free ();
     }
     break;
 
 
-/* Line 1265 of yacc.c.  */
-#line 2337 "../../src/parse-gram.c"
+
+/* Line 1493 of yacc.c  */
+#line 2696 "parse-gram.c"
       default: break;
     }
+  /* User semantic actions sometimes alter yychar, and that requires
+     that yytoken be updated with the new translation.  We take the
+     approach of translating immediately before every use of yytoken.
+     One alternative is translating here after every semantic action,
+     but that translation would be missed if the semantic action invokes
+     YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
+     if it invokes YYBACKUP.  In the case of YYABORT or YYACCEPT, an
+     incorrect destructor might then be invoked immediately.  In the
+     case of YYERROR or YYBACKUP, subsequent parser actions might lead
+     to an incorrect destructor call or verbose syntax error message
+     before the lookahead is translated.  */
   YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
 
   YYPOPSTACK (yylen);
@@ -2364,6 +2734,10 @@ yyreduce:
 | yyerrlab -- here on detecting error |
 `------------------------------------*/
 yyerrlab:
+  /* Make sure we have latest lookahead translation.  See comments at
+     user semantic actions for why this is necessary.  */
+  yytoken = YYTRANSLATE (yychar);
+
   /* If not already recovering from an error, report this error.  */
   if (!yyerrstatus)
     {
@@ -2371,41 +2745,32 @@ yyerrlab:
 #if ! YYERROR_VERBOSE
       yyerror (YY_("syntax error"));
 #else
-      {
-	YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
-	if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
-	  {
-	    YYSIZE_T yyalloc = 2 * yysize;
-	    if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
-	      yyalloc = YYSTACK_ALLOC_MAXIMUM;
-	    if (yymsg != yymsgbuf)
-	      YYSTACK_FREE (yymsg);
-	    yymsg = (char *) YYSTACK_ALLOC (yyalloc);
-	    if (yymsg)
-	      yymsg_alloc = yyalloc;
-	    else
-	      {
-		yymsg = yymsgbuf;
-		yymsg_alloc = sizeof yymsgbuf;
-	      }
-	  }
-
-	if (0 < yysize && yysize <= yymsg_alloc)
-	  {
-	    (void) yysyntax_error (yymsg, yystate, yychar);
-	    yyerror (yymsg);
-	  }
-	else
-	  {
-	    yyerror (YY_("syntax error"));
-	    if (yysize != 0)
-	      goto yyexhaustedlab;
-	  }
-      }
+      while (1)
+        {
+          int yysyntax_error_status =
+            yysyntax_error (&yymsg_alloc, &yymsg, yystate, yytoken);
+          if (yysyntax_error_status == 2 && 0 < yymsg_alloc)
+            {
+              if (yymsg != yymsgbuf)
+                YYSTACK_FREE (yymsg);
+              yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
+              if (yymsg)
+                continue;
+              yymsg = yymsgbuf;
+              yymsg_alloc = sizeof yymsgbuf;
+            }
+          if (yysyntax_error_status == 0)
+            yyerror (yymsg);
+          else
+            yyerror (YY_("syntax error"));
+          if (yysyntax_error_status == 2)
+            goto yyexhaustedlab;
+          break;
+        }
 #endif
     }
 
-  yyerror_range[0] = yylloc;
+  yyerror_range[1] = yylloc;
 
   if (yyerrstatus == 3)
     {
@@ -2442,7 +2807,7 @@ yyerrorlab:
   if (/*CONSTCOND*/ 0)
      goto yyerrorlab;
 
-  yyerror_range[0] = yylsp[1-yylen];
+  yyerror_range[1] = yylsp[1-yylen];
   /* Do not reclaim the symbols of the rule which action triggered
      this YYERROR.  */
   YYPOPSTACK (yylen);
@@ -2461,7 +2826,7 @@ yyerrlab1:
   for (;;)
     {
       yyn = yypact[yystate];
-      if (yyn != YYPACT_NINF)
+      if (!yypact_value_is_default (yyn))
 	{
 	  yyn += YYTERROR;
 	  if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
@@ -2476,7 +2841,7 @@ yyerrlab1:
       if (yyssp == yyss)
 	YYABORT;
 
-      yyerror_range[0] = *yylsp;
+      yyerror_range[1] = *yylsp;
       yydestruct ("Error: popping",
 		  yystos[yystate], yyvsp, yylsp);
       YYPOPSTACK (1);
@@ -2484,15 +2849,12 @@ yyerrlab1:
       YY_STACK_PRINT (yyss, yyssp);
     }
 
-  if (yyn == YYFINAL)
-    YYACCEPT;
-
   *++yyvsp = yylval;
 
-  yyerror_range[1] = yylloc;
+  yyerror_range[2] = yylloc;
   /* Using YYLLOC is tempting, but would change the location of
      the lookahead.  YYLOC is available though.  */
-  YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
+  YYLLOC_DEFAULT (yyloc, yyerror_range, 2);
   *++yylsp = yyloc;
 
   /* Shift the error token.  */
@@ -2516,7 +2878,7 @@ yyabortlab:
   yyresult = 1;
   goto yyreturn;
 
-#ifndef yyoverflow
+#if !defined(yyoverflow) || YYERROR_VERBOSE
 /*-------------------------------------------------.
 | yyexhaustedlab -- memory exhaustion comes here.  |
 `-------------------------------------------------*/
@@ -2527,9 +2889,14 @@ yyexhaustedlab:
 #endif
 
 yyreturn:
-  if (yychar != YYEOF && yychar != YYEMPTY)
-     yydestruct ("Cleanup: discarding lookahead",
-		 yytoken, &yylval, &yylloc);
+  if (yychar != YYEMPTY)
+    {
+      /* Make sure we have latest lookahead translation.  See comments at
+         user semantic actions for why this is necessary.  */
+      yytoken = YYTRANSLATE (yychar);
+      yydestruct ("Cleanup: discarding lookahead",
+                  yytoken, &yylval, &yylloc);
+    }
   /* Do not reclaim the symbols of the rule which action triggered
      this YYABORT or YYACCEPT.  */
   YYPOPSTACK (yylen);
@@ -2553,8 +2920,9 @@ yyreturn:
 }
 
 
-/* Line 1485 of yacc.c.  */
-#line 539 "../../src/parse-gram.y"
+
+/* Line 1724 of yacc.c  */
+#line 647 "parse-gram.y"
 
 
 
@@ -2639,6 +3007,7 @@ add_param (char const *type, char *decl, location loc)
   gram_scanner_last_string_free ();
 }
 
+
 static void
 version_check (location const *loc, char const *version)
 {