Initial import of Sylpheed (GTK2 version).

git-svn-id: svn://sylpheed.sraoss.jp/sylpheed/trunk@1 ee746299-78ed-0310-b773-934348b2243d

1 files changed, 1583 insertions, 0 deletions

diff --git a/intl/plural.c b/intl/plural.c
new file mode 100644
index 00000000..addededf
--- /dev/null
+++ b/intl/plural.c
@@ -0,0 +1,1583 @@
+/* A Bison parser, made by GNU Bison 1.875a.  */
+
+/* Skeleton parser for Yacc-like parsing with Bison,
+   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003 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.
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* As a special exception, when this file is copied by Bison into a
+   Bison output file, you may use that output file without restriction.
+   This special exception was added by the Free Software Foundation
+   in version 1.24 of Bison.  */
+
+/* Written by Richard Stallman by simplifying the original so called
+   ``semantic'' parser.  */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+   infringing on user name space.  This should be done even for local
+   variables, as they might otherwise be expanded by user macros.
+   There are some unavoidable exceptions within include files to
+   define necessary library symbols; they are noted "INFRINGES ON
+   USER NAME SPACE" below.  */
+
+/* Identify Bison output.  */
+#define YYBISON 1
+
+/* Skeleton name.  */
+#define YYSKELETON_NAME "yacc.c"
+
+/* Pure parsers.  */
+#define YYPURE 1
+
+/* Using locations.  */
+#define YYLSP_NEEDED 0
+
+/* If NAME_PREFIX is specified substitute the variables and functions
+   names.  */
+#define yyparse __gettextparse
+#define yylex   __gettextlex
+#define yyerror __gettexterror
+#define yylval  __gettextlval
+#define yychar  __gettextchar
+#define yydebug __gettextdebug
+#define yynerrs __gettextnerrs
+
+
+/* Tokens.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+   /* Put the tokens into the symbol table, so that GDB and other debuggers
+      know about them.  */
+   enum yytokentype {
+     EQUOP2 = 258,
+     CMPOP2 = 259,
+     ADDOP2 = 260,
+     MULOP2 = 261,
+     NUMBER = 262
+   };
+#endif
+#define EQUOP2 258
+#define CMPOP2 259
+#define ADDOP2 260
+#define MULOP2 261
+#define NUMBER 262
+
+
+
+
+/* Copy the first part of user declarations.  */
+#line 1 "plural.y"
+
+/* Expression parsing for plural form selection.
+   Copyright (C) 2000-2001, 2003 Free Software Foundation, Inc.
+   Written by Ulrich Drepper <drepper@cygnus.com>, 2000.
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Library General Public License as published
+   by the Free Software Foundation; either version 2, 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+   USA.  */
+
+/* The bison generated parser uses alloca.  AIX 3 forces us to put this
+   declaration at the beginning of the file.  The declaration in bison's
+   skeleton file comes too late.  This must come before <config.h>
+   because <config.h> may include arbitrary system headers.  */
+#if defined _AIX && !defined __GNUC__
+ #pragma alloca
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stddef.h>
+#include <stdlib.h>
+#include "plural-exp.h"
+
+/* The main function generated by the parser is called __gettextparse,
+   but we want it to be called PLURAL_PARSE.  */
+#ifndef _LIBC
+# define __gettextparse PLURAL_PARSE
+#endif
+
+#define YYLEX_PARAM	&((struct parse_args *) arg)->cp
+#define YYPARSE_PARAM	arg
+
+
+/* Enabling traces.  */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+
+/* Enabling verbose error messages.  */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE 0
+#endif
+
+#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
+#line 49 "plural.y"
+typedef union YYSTYPE {
+  unsigned long int num;
+  enum operator op;
+  struct expression *exp;
+} YYSTYPE;
+/* Line 191 of yacc.c.  */
+#line 151 "plural.c"
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+
+
+/* Copy the second part of user declarations.  */
+#line 55 "plural.y"
+
+/* Prototypes for local functions.  */
+static int yylex (YYSTYPE *lval, const char **pexp);
+static void yyerror (const char *str);
+
+/* Allocation of expressions.  */
+
+static struct expression *
+new_exp (int nargs, enum operator op, struct expression * const *args)
+{
+  int i;
+  struct expression *newp;
+
+  /* If any of the argument could not be malloc'ed, just return NULL.  */
+  for (i = nargs - 1; i >= 0; i--)
+    if (args[i] == NULL)
+      goto fail;
+
+  /* Allocate a new expression.  */
+  newp = (struct expression *) malloc (sizeof (*newp));
+  if (newp != NULL)
+    {
+      newp->nargs = nargs;
+      newp->operation = op;
+      for (i = nargs - 1; i >= 0; i--)
+	newp->val.args[i] = args[i];
+      return newp;
+    }
+
+ fail:
+  for (i = nargs - 1; i >= 0; i--)
+    FREE_EXPRESSION (args[i]);
+
+  return NULL;
+}
+
+static inline struct expression *
+new_exp_0 (enum operator op)
+{
+  return new_exp (0, op, NULL);
+}
+
+static inline struct expression *
+new_exp_1 (enum operator op, struct expression *right)
+{
+  struct expression *args[1];
+
+  args[0] = right;
+  return new_exp (1, op, args);
+}
+
+static struct expression *
+new_exp_2 (enum operator op, struct expression *left, struct expression *right)
+{
+  struct expression *args[2];
+
+  args[0] = left;
+  args[1] = right;
+  return new_exp (2, op, args);
+}
+
+static inline struct expression *
+new_exp_3 (enum operator op, struct expression *bexp,
+	   struct expression *tbranch, struct expression *fbranch)
+{
+  struct expression *args[3];
+
+  args[0] = bexp;
+  args[1] = tbranch;
+  args[2] = fbranch;
+  return new_exp (3, op, args);
+}
+
+
+
+/* Line 214 of yacc.c.  */
+#line 237 "plural.c"
+
+#if ! defined (yyoverflow) || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols.  */
+
+# if YYSTACK_USE_ALLOCA
+#  define YYSTACK_ALLOC alloca
+# else
+#  ifndef YYSTACK_USE_ALLOCA
+#   if defined (alloca) || defined (_ALLOCA_H)
+#    define YYSTACK_ALLOC alloca
+#   else
+#    ifdef __GNUC__
+#     define YYSTACK_ALLOC __builtin_alloca
+#    endif
+#   endif
+#  endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+   /* Pacify GCC's `empty if-body' warning. */
+#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
+# else
+#  if defined (__STDC__) || defined (__cplusplus)
+#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+#   define YYSIZE_T size_t
+#  endif
+#  define YYSTACK_ALLOC malloc
+#  define YYSTACK_FREE free
+# endif
+#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */
+
+
+#if (! defined (yyoverflow) \
+     && (! defined (__cplusplus) \
+	 || (YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member.  */
+union yyalloc
+{
+  short yyss;
+  YYSTYPE yyvs;
+  };
+
+/* The size of the maximum gap between one aligned stack and the next.  */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+   N elements.  */
+# define YYSTACK_BYTES(N) \
+     ((N) * (sizeof (short) + sizeof (YYSTYPE))				\
+      + YYSTACK_GAP_MAXIMUM)
+
+/* Copy COUNT objects from FROM to TO.  The source and destination do
+   not overlap.  */
+# ifndef YYCOPY
+#  if 1 < __GNUC__
+#   define YYCOPY(To, From, Count) \
+      __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+#  else
+#   define YYCOPY(To, From, Count)		\
+      do					\
+	{					\
+	  register YYSIZE_T yyi;		\
+	  for (yyi = 0; yyi < (Count); yyi++)	\
+	    (To)[yyi] = (From)[yyi];		\
+	}					\
+      while (0)
+#  endif
+# endif
+
+/* Relocate STACK from its old location to the new one.  The
+   local variables YYSIZE and YYSTACKSIZE give the old and new number of
+   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)					\
+    do									\
+      {									\
+	YYSIZE_T yynewbytes;						\
+	YYCOPY (&yyptr->Stack, Stack, yysize);				\
+	Stack = &yyptr->Stack;						\
+	yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+	yyptr += yynewbytes / sizeof (*yyptr);				\
+      }									\
+    while (0)
+
+#endif
+
+#if defined (__STDC__) || defined (__cplusplus)
+   typedef signed char yysigned_char;
+#else
+   typedef short yysigned_char;
+#endif
+
+/* YYFINAL -- State number of the termination state. */
+#define YYFINAL  9
+/* YYLAST -- Last index in YYTABLE.  */
+#define YYLAST   54
+
+/* YYNTOKENS -- Number of terminals. */
+#define YYNTOKENS  16
+/* YYNNTS -- Number of nonterminals. */
+#define YYNNTS  3
+/* YYNRULES -- Number of rules. */
+#define YYNRULES  13
+/* YYNRULES -- Number of states. */
+#define YYNSTATES  27
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
+#define YYUNDEFTOK  2
+#define YYMAXUTOK   262
+
+#define YYTRANSLATE(YYX) 						\
+  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX.  */
+static const unsigned char yytranslate[] =
+{
+       0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,    10,     2,     2,     2,     2,     5,     2,
+      14,    15,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,    12,     2,
+       2,     2,     2,     3,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+      13,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     4,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     1,     2,     6,     7,
+       8,     9,    11
+};
+
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+   YYRHS.  */
+static const unsigned char yyprhs[] =
+{
+       0,     0,     3,     5,    11,    15,    19,    23,    27,    31,
+      35,    38,    40,    42
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+static const yysigned_char yyrhs[] =
+{
+      17,     0,    -1,    18,    -1,    18,     3,    18,    12,    18,
+      -1,    18,     4,    18,    -1,    18,     5,    18,    -1,    18,
+       6,    18,    -1,    18,     7,    18,    -1,    18,     8,    18,
+      -1,    18,     9,    18,    -1,    10,    18,    -1,    13,    -1,
+      11,    -1,    14,    18,    15,    -1
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
+static const unsigned char yyrline[] =
+{
+       0,   150,   150,   158,   162,   166,   170,   174,   178,   182,
+     186,   190,   194,   199
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE
+/* YYTNME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+   First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+static const char *const yytname[] =
+{
+  "$end", "error", "$undefined", "'?'", "'|'", "'&'", "EQUOP2", "CMPOP2", 
+  "ADDOP2", "MULOP2", "'!'", "NUMBER", "':'", "'n'", "'('", "')'", 
+  "$accept", "start", "exp", 0
+};
+#endif
+
+# ifdef YYPRINT
+/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
+   token YYLEX-NUM.  */
+static const unsigned short yytoknum[] =
+{
+       0,   256,   257,    63,   124,    38,   258,   259,   260,   261,
+      33,   262,    58,   110,    40,    41
+};
+# endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
+static const unsigned char yyr1[] =
+{
+       0,    16,    17,    18,    18,    18,    18,    18,    18,    18,
+      18,    18,    18,    18
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
+static const unsigned char yyr2[] =
+{
+       0,     2,     1,     5,     3,     3,     3,     3,     3,     3,
+       2,     1,     1,     3
+};
+
+/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
+   STATE-NUM when YYTABLE doesn't specify something else to do.  Zero
+   means the default is an error.  */
+static const unsigned char yydefact[] =
+{
+       0,     0,    12,    11,     0,     0,     2,    10,     0,     1,
+       0,     0,     0,     0,     0,     0,     0,    13,     0,     4,
+       5,     6,     7,     8,     9,     0,     3
+};
+
+/* YYDEFGOTO[NTERM-NUM]. */
+static const yysigned_char yydefgoto[] =
+{
+      -1,     5,     6
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+   STATE-NUM.  */
+#define YYPACT_NINF -10
+static const yysigned_char yypact[] =
+{
+      -9,    -9,   -10,   -10,    -9,     8,    36,   -10,    13,   -10,
+      -9,    -9,    -9,    -9,    -9,    -9,    -9,   -10,    26,    41,
+      45,    18,    -2,    14,   -10,    -9,    36
+};
+
+/* YYPGOTO[NTERM-NUM].  */
+static const yysigned_char yypgoto[] =
+{
+     -10,   -10,    -1
+};
+
+/* 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 -1
+static const unsigned char yytable[] =
+{
+       7,     1,     2,     8,     3,     4,    15,    16,     9,    18,
+      19,    20,    21,    22,    23,    24,    10,    11,    12,    13,
+      14,    15,    16,    16,    26,    14,    15,    16,    17,    10,
+      11,    12,    13,    14,    15,    16,     0,     0,    25,    10,
+      11,    12,    13,    14,    15,    16,    12,    13,    14,    15,
+      16,    13,    14,    15,    16
+};
+
+static const yysigned_char yycheck[] =
+{
+       1,    10,    11,     4,    13,    14,     8,     9,     0,    10,
+      11,    12,    13,    14,    15,    16,     3,     4,     5,     6,
+       7,     8,     9,     9,    25,     7,     8,     9,    15,     3,
+       4,     5,     6,     7,     8,     9,    -1,    -1,    12,     3,
+       4,     5,     6,     7,     8,     9,     5,     6,     7,     8,
+       9,     6,     7,     8,     9
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+   symbol of state STATE-NUM.  */
+static const unsigned char yystos[] =
+{
+       0,    10,    11,    13,    14,    17,    18,    18,    18,     0,
+       3,     4,     5,     6,     7,     8,     9,    15,    18,    18,
+      18,    18,    18,    18,    18,    12,    18
+};
+
+#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__)
+# define YYSIZE_T __SIZE_TYPE__
+#endif
+#if ! defined (YYSIZE_T) && defined (size_t)
+# define YYSIZE_T size_t
+#endif
+#if ! defined (YYSIZE_T)
+# if defined (__STDC__) || defined (__cplusplus)
+#  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
+#  define YYSIZE_T size_t
+# endif
+#endif
+#if ! defined (YYSIZE_T)
+# define YYSIZE_T unsigned int
+#endif
+
+#define yyerrok		(yyerrstatus = 0)
+#define yyclearin	(yychar = YYEMPTY)
+#define YYEMPTY		(-2)
+#define YYEOF		0
+
+#define YYACCEPT	goto yyacceptlab
+#define YYABORT		goto yyabortlab
+#define YYERROR		goto yyerrlab1
+
+
+/* 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.  */
+
+#define YYFAIL		goto yyerrlab
+
+#define YYRECOVERING()  (!!yyerrstatus)
+
+#define YYBACKUP(Token, Value)					\
+do								\
+  if (yychar == YYEMPTY && yylen == 1)				\
+    {								\
+      yychar = (Token);						\
+      yylval = (Value);						\
+      yytoken = YYTRANSLATE (yychar);				\
+      YYPOPSTACK;						\
+      goto yybackup;						\
+    }								\
+  else								\
+    { 								\
+      yyerror ("syntax error: cannot back up");\
+      YYERROR;							\
+    }								\
+while (0)
+
+#define YYTERROR	1
+#define YYERRCODE	256
+
+/* YYLLOC_DEFAULT -- Compute the default location (before the actions
+   are run).  */
+
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N)         \
+  Current.first_line   = Rhs[1].first_line;      \
+  Current.first_column = Rhs[1].first_column;    \
+  Current.last_line    = Rhs[N].last_line;       \
+  Current.last_column  = Rhs[N].last_column;
+#endif
+
+/* YYLEX -- calling `yylex' with the right arguments.  */
+
+#ifdef YYLEX_PARAM
+# define YYLEX yylex (&yylval, YYLEX_PARAM)
+#else
+# define YYLEX yylex (&yylval)
+#endif
+
+/* Enable debugging if requested.  */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+#  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
+#  define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args)			\
+do {						\
+  if (yydebug)					\
+    YYFPRINTF Args;				\
+} while (0)
+
+# define YYDSYMPRINT(Args)			\
+do {						\
+  if (yydebug)					\
+    yysymprint Args;				\
+} while (0)
+
+# define YYDSYMPRINTF(Title, Token, Value, Location)		\
+do {								\
+  if (yydebug)							\
+    {								\
+      YYFPRINTF (stderr, "%s ", Title);				\
+      yysymprint (stderr, 					\
+                  Token, Value);	\
+      YYFPRINTF (stderr, "\n");					\
+    }								\
+} while (0)
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (cinluded).                                                   |
+`------------------------------------------------------------------*/
+
+#if defined (__STDC__) || defined (__cplusplus)
+static void
+yy_stack_print (short *bottom, short *top)
+#else
+static void
+yy_stack_print (bottom, top)
+    short *bottom;
+    short *top;
+#endif
+{
+  YYFPRINTF (stderr, "Stack now");
+  for (/* Nothing. */; bottom <= top; ++bottom)
+    YYFPRINTF (stderr, " %d", *bottom);
+  YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top)				\
+do {								\
+  if (yydebug)							\
+    yy_stack_print ((Bottom), (Top));				\
+} while (0)
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced.  |
+`------------------------------------------------*/
+
+#if defined (__STDC__) || defined (__cplusplus)
+static void
+yy_reduce_print (int yyrule)
+#else
+static void
+yy_reduce_print (yyrule)
+    int yyrule;
+#endif
+{
+  int yyi;
+  unsigned int yylineno = yyrline[yyrule];
+  YYFPRINTF (stderr, "Reducing stack by rule %d (line %u), ",
+             yyrule - 1, yylineno);
+  /* Print the symbols being reduced, and their result.  */
+  for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++)
+    YYFPRINTF (stderr, "%s ", yytname [yyrhs[yyi]]);
+  YYFPRINTF (stderr, "-> %s\n", yytname [yyr1[yyrule]]);
+}
+
+# define YY_REDUCE_PRINT(Rule)		\
+do {					\
+  if (yydebug)				\
+    yy_reduce_print (Rule);		\
+} while (0)
+
+/* Nonzero means print parse trace.  It is left uninitialized so that
+   multiple parsers can coexist.  */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YYDSYMPRINT(Args)
+# define YYDSYMPRINTF(Title, Token, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
+
+
+/* YYINITDEPTH -- initial size of the parser's stacks.  */
+#ifndef	YYINITDEPTH
+# define YYINITDEPTH 200
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+   if the built-in stack extension method is used).
+
+   Do not make this value too large; the results are undefined if
+   SIZE_MAX < YYSTACK_BYTES (YYMAXDEPTH)
+   evaluated with infinite-precision integer arithmetic.  */
+
+#if YYMAXDEPTH == 0
+# undef YYMAXDEPTH
+#endif
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH 10000
+#endif
+
+
+
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+#  if defined (__GLIBC__) && defined (_STRING_H)
+#   define yystrlen strlen
+#  else
+/* Return the length of YYSTR.  */
+static YYSIZE_T
+#   if defined (__STDC__) || defined (__cplusplus)
+yystrlen (const char *yystr)
+#   else
+yystrlen (yystr)
+     const char *yystr;
+#   endif
+{
+  register const char *yys = yystr;
+
+  while (*yys++ != '\0')
+    continue;
+
+  return yys - yystr - 1;
+}
+#  endif
+# endif
+
+# ifndef yystpcpy
+#  if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE)
+#   define yystpcpy stpcpy
+#  else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+   YYDEST.  */
+static char *
+#   if defined (__STDC__) || defined (__cplusplus)
+yystpcpy (char *yydest, const char *yysrc)
+#   else
+yystpcpy (yydest, yysrc)
+     char *yydest;
+     const char *yysrc;
+#   endif
+{
+  register char *yyd = yydest;
+  register const char *yys = yysrc;
+
+  while ((*yyd++ = *yys++) != '\0')
+    continue;
+
+  return yyd - 1;
+}
+#  endif
+# endif
+
+#endif /* !YYERROR_VERBOSE */
+
+
+
+#if YYDEBUG
+/*--------------------------------.
+| Print this symbol on YYOUTPUT.  |
+`--------------------------------*/
+
+#if defined (__STDC__) || defined (__cplusplus)
+static void
+yysymprint (FILE *yyoutput, int yytype, YYSTYPE *yyvaluep)
+#else
+static void
+yysymprint (yyoutput, yytype, yyvaluep)
+    FILE *yyoutput;
+    int yytype;
+    YYSTYPE *yyvaluep;
+#endif
+{
+  /* Pacify ``unused variable'' warnings.  */
+  (void) yyvaluep;
+
+  if (yytype < YYNTOKENS)
+    {
+      YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
+# ifdef YYPRINT
+      YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# endif
+    }
+  else
+    YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
+
+  switch (yytype)
+    {
+      default:
+        break;
+    }
+  YYFPRINTF (yyoutput, ")");
+}
+
+#endif /* ! YYDEBUG */
+/*-----------------------------------------------.
+| Release the memory associated to this symbol.  |
+`-----------------------------------------------*/
+
+#if defined (__STDC__) || defined (__cplusplus)
+static void
+yydestruct (int yytype, YYSTYPE *yyvaluep)
+#else
+static void
+yydestruct (yytype, yyvaluep)
+    int yytype;
+    YYSTYPE *yyvaluep;
+#endif
+{
+  /* Pacify ``unused variable'' warnings.  */
+  (void) yyvaluep;
+
+  switch (yytype)
+    {
+
+      default:
+        break;
+    }
+}
+
+
+/* Prevent warnings from -Wmissing-prototypes.  */
+
+#ifdef YYPARSE_PARAM
+# if defined (__STDC__) || defined (__cplusplus)
+int yyparse (void *YYPARSE_PARAM);
+# else
+int yyparse ();
+# endif
+#else /* ! YYPARSE_PARAM */
+#if defined (__STDC__) || defined (__cplusplus)
+int yyparse (void);
+#else
+int yyparse ();
+#endif
+#endif /* ! YYPARSE_PARAM */
+
+
+
+
+
+
+/*----------.
+| yyparse.  |
+`----------*/
+
+#ifdef YYPARSE_PARAM
+# if defined (__STDC__) || defined (__cplusplus)
+int yyparse (void *YYPARSE_PARAM)
+# else
+int yyparse (YYPARSE_PARAM)
+  void *YYPARSE_PARAM;
+# endif
+#else /* ! YYPARSE_PARAM */
+#if defined (__STDC__) || defined (__cplusplus)
+int
+yyparse (void)
+#else
+int
+yyparse ()
+
+#endif
+#endif
+{
+  /* The lookahead symbol.  */
+int yychar;
+
+/* The semantic value of the lookahead symbol.  */
+YYSTYPE yylval;
+
+/* Number of syntax errors so far.  */
+int yynerrs;
+
+  register int yystate;
+  register 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;
+
+  /* Three stacks and their tools:
+     `yyss': related to states,
+     `yyvs': related to semantic values,
+     `yyls': related to locations.
+
+     Refer to the stacks thru separate pointers, to allow yyoverflow
+     to reallocate them elsewhere.  */
+
+  /* The state stack.  */
+  short	yyssa[YYINITDEPTH];
+  short *yyss = yyssa;
+  register short *yyssp;
+
+  /* The semantic value stack.  */
+  YYSTYPE yyvsa[YYINITDEPTH];
+  YYSTYPE *yyvs = yyvsa;
+  register YYSTYPE *yyvsp;
+
+
+
+#define YYPOPSTACK   (yyvsp--, yyssp--)
+
+  YYSIZE_T yystacksize = YYINITDEPTH;
+
+  /* The variables used to return semantic value and location from the
+     action routines.  */
+  YYSTYPE yyval;
+
+
+  /* When reducing, the number of symbols on the RHS of the reduced
+     rule.  */
+  int yylen;
+
+  YYDPRINTF ((stderr, "Starting parse\n"));
+
+  yystate = 0;
+  yyerrstatus = 0;
+  yynerrs = 0;
+  yychar = YYEMPTY;		/* Cause a token to be read.  */
+
+  /* Initialize stack pointers.
+     Waste one element of value and location stack
+     so that they stay on the same level as the state stack.
+     The wasted elements are never initialized.  */
+
+  yyssp = yyss;
+  yyvsp = yyvs;
+
+  goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate.  |
+`------------------------------------------------------------*/
+ yynewstate:
+  /* In all cases, when you get here, the value and location stacks
+     have just been pushed. so pushing a state here evens the stacks.
+     */
+  yyssp++;
+
+ yysetstate:
+  *yyssp = yystate;
+
+  if (yyss + yystacksize - 1 <= yyssp)
+    {
+      /* Get the current used size of the three stacks, in elements.  */
+      YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+      {
+	/* Give user a chance to reallocate the stack. Use copies of
+	   these so that the &'s don't force the real ones into
+	   memory.  */
+	YYSTYPE *yyvs1 = yyvs;
+	short *yyss1 = yyss;
+
+
+	/* Each stack pointer address is followed by the size of the
+	   data in use in that stack, in bytes.  This used to be a
+	   conditional around just the two extra args, but that might
+	   be undefined if yyoverflow is a macro.  */
+	yyoverflow ("parser stack overflow",
+		    &yyss1, yysize * sizeof (*yyssp),
+		    &yyvs1, yysize * sizeof (*yyvsp),
+
+		    &yystacksize);
+
+	yyss = yyss1;
+	yyvs = yyvs1;
+      }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+      goto yyoverflowlab;
+# else
+      /* Extend the stack our own way.  */
+      if (YYMAXDEPTH <= yystacksize)
+	goto yyoverflowlab;
+      yystacksize *= 2;
+      if (YYMAXDEPTH < yystacksize)
+	yystacksize = YYMAXDEPTH;
+
+      {
+	short *yyss1 = yyss;
+	union yyalloc *yyptr =
+	  (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+	if (! yyptr)
+	  goto yyoverflowlab;
+	YYSTACK_RELOCATE (yyss);
+	YYSTACK_RELOCATE (yyvs);
+
+#  undef YYSTACK_RELOCATE
+	if (yyss1 != yyssa)
+	  YYSTACK_FREE (yyss1);
+      }
+# endif
+#endif /* no yyoverflow */
+
+      yyssp = yyss + yysize - 1;
+      yyvsp = yyvs + yysize - 1;
+
+
+      YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+		  (unsigned long int) yystacksize));
+
+      if (yyss + yystacksize - 1 <= yyssp)
+	YYABORT;
+    }
+
+  YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+
+  goto yybackup;
+
+/*-----------.
+| yybackup.  |
+`-----------*/
+yybackup:
+
+/* Do appropriate processing given the current state.  */
+/* Read a lookahead token if we need one and don't already have one.  */
+/* yyresume: */
+
+  /* First try to decide what to do without reference to lookahead token.  */
+
+  yyn = yypact[yystate];
+  if (yyn == YYPACT_NINF)
+    goto yydefault;
+
+  /* Not known => get a lookahead token if don't already have one.  */
+
+  /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol.  */
+  if (yychar == YYEMPTY)
+    {
+      YYDPRINTF ((stderr, "Reading a token: "));
+      yychar = YYLEX;
+    }
+
+  if (yychar <= YYEOF)
+    {
+      yychar = yytoken = YYEOF;
+      YYDPRINTF ((stderr, "Now at end of input.\n"));
+    }
+  else
+    {
+      yytoken = YYTRANSLATE (yychar);
+      YYDSYMPRINTF ("Next token is", yytoken, &yylval, &yylloc);
+    }
+
+  /* If the proper action on seeing token YYTOKEN is to reduce or to
+     detect an error, take that action.  */
+  yyn += yytoken;
+  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
+    goto yydefault;
+  yyn = yytable[yyn];
+  if (yyn <= 0)
+    {
+      if (yyn == 0 || yyn == YYTABLE_NINF)
+	goto yyerrlab;
+      yyn = -yyn;
+      goto yyreduce;
+    }
+
+  if (yyn == YYFINAL)
+    YYACCEPT;
+
+  /* Shift the lookahead token.  */
+  YYDPRINTF ((stderr, "Shifting token %s, ", yytname[yytoken]));
+
+  /* Discard the token being shifted unless it is eof.  */
+  if (yychar != YYEOF)
+    yychar = YYEMPTY;
+
+  *++yyvsp = yylval;
+
+
+  /* Count tokens shifted since error; after three, turn off error
+     status.  */
+  if (yyerrstatus)
+    yyerrstatus--;
+
+  yystate = yyn;
+  goto yynewstate;
+
+
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state.  |
+`-----------------------------------------------------------*/
+yydefault:
+  yyn = yydefact[yystate];
+  if (yyn == 0)
+    goto yyerrlab;
+  goto yyreduce;
+
+
+/*-----------------------------.
+| yyreduce -- Do a reduction.  |
+`-----------------------------*/
+yyreduce:
+  /* yyn is the number of a rule to reduce with.  */
+  yylen = yyr2[yyn];
+
+  /* If YYLEN is nonzero, implement the default value of the action:
+     `$$ = $1'.
+
+     Otherwise, the following line sets YYVAL to garbage.
+     This behavior is undocumented and Bison
+     users should not rely upon it.  Assigning to YYVAL
+     unconditionally makes the parser a bit smaller, and it avoids a
+     GCC warning that YYVAL may be used uninitialized.  */
+  yyval = yyvsp[1-yylen];
+
+
+  YY_REDUCE_PRINT (yyn);
+  switch (yyn)
+    {
+        case 2:
+#line 151 "plural.y"
+    {
+	    if (yyvsp[0].exp == NULL)
+	      YYABORT;
+	    ((struct parse_args *) arg)->res = yyvsp[0].exp;
+	  }
+    break;
+
+  case 3:
+#line 159 "plural.y"
+    {
+	    yyval.exp = new_exp_3 (qmop, yyvsp[-4].exp, yyvsp[-2].exp, yyvsp[0].exp);
+	  }
+    break;
+
+  case 4:
+#line 163 "plural.y"
+    {
+	    yyval.exp = new_exp_2 (lor, yyvsp[-2].exp, yyvsp[0].exp);
+	  }
+    break;
+
+  case 5:
+#line 167 "plural.y"
+    {
+	    yyval.exp = new_exp_2 (land, yyvsp[-2].exp, yyvsp[0].exp);
+	  }
+    break;
+
+  case 6:
+#line 171 "plural.y"
+    {
+	    yyval.exp = new_exp_2 (yyvsp[-1].op, yyvsp[-2].exp, yyvsp[0].exp);
+	  }
+    break;
+
+  case 7:
+#line 175 "plural.y"
+    {
+	    yyval.exp = new_exp_2 (yyvsp[-1].op, yyvsp[-2].exp, yyvsp[0].exp);
+	  }
+    break;
+
+  case 8:
+#line 179 "plural.y"
+    {
+	    yyval.exp = new_exp_2 (yyvsp[-1].op, yyvsp[-2].exp, yyvsp[0].exp);
+	  }
+    break;
+
+  case 9:
+#line 183 "plural.y"
+    {
+	    yyval.exp = new_exp_2 (yyvsp[-1].op, yyvsp[-2].exp, yyvsp[0].exp);
+	  }
+    break;
+
+  case 10:
+#line 187 "plural.y"
+    {
+	    yyval.exp = new_exp_1 (lnot, yyvsp[0].exp);
+	  }
+    break;
+
+  case 11:
+#line 191 "plural.y"
+    {
+	    yyval.exp = new_exp_0 (var);
+	  }
+    break;
+
+  case 12:
+#line 195 "plural.y"
+    {
+	    if ((yyval.exp = new_exp_0 (num)) != NULL)
+	      yyval.exp->val.num = yyvsp[0].num;
+	  }
+    break;
+
+  case 13:
+#line 200 "plural.y"
+    {
+	    yyval.exp = yyvsp[-1].exp;
+	  }
+    break;
+
+
+    }
+
+/* Line 999 of yacc.c.  */
+#line 1212 "plural.c"
+
+  yyvsp -= yylen;
+  yyssp -= yylen;
+
+
+  YY_STACK_PRINT (yyss, yyssp);
+
+  *++yyvsp = yyval;
+
+
+  /* Now `shift' the result of the reduction.  Determine what state
+     that goes to, based on the state we popped back to and the rule
+     number reduced by.  */
+
+  yyn = yyr1[yyn];
+
+  yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+  if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+    yystate = yytable[yystate];
+  else
+    yystate = yydefgoto[yyn - YYNTOKENS];
+
+  goto yynewstate;
+
+
+/*------------------------------------.
+| yyerrlab -- here on detecting error |
+`------------------------------------*/
+yyerrlab:
+  /* If not already recovering from an error, report this error.  */
+  if (!yyerrstatus)
+    {
+      ++yynerrs;
+#if YYERROR_VERBOSE
+      yyn = yypact[yystate];
+
+      if (YYPACT_NINF < yyn && yyn < YYLAST)
+	{
+	  YYSIZE_T yysize = 0;
+	  int yytype = YYTRANSLATE (yychar);
+	  char *yymsg;
+	  int yyx, yycount;
+
+	  yycount = 0;
+	  /* Start YYX at -YYN if negative to avoid negative indexes in
+	     YYCHECK.  */
+	  for (yyx = yyn < 0 ? -yyn : 0;
+	       yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++)
+	    if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+	      yysize += yystrlen (yytname[yyx]) + 15, yycount++;
+	  yysize += yystrlen ("syntax error, unexpected ") + 1;
+	  yysize += yystrlen (yytname[yytype]);
+	  yymsg = (char *) YYSTACK_ALLOC (yysize);
+	  if (yymsg != 0)
+	    {
+	      char *yyp = yystpcpy (yymsg, "syntax error, unexpected ");
+	      yyp = yystpcpy (yyp, yytname[yytype]);
+
+	      if (yycount < 5)
+		{
+		  yycount = 0;
+		  for (yyx = yyn < 0 ? -yyn : 0;
+		       yyx < (int) (sizeof (yytname) / sizeof (char *));
+		       yyx++)
+		    if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+		      {
+			const char *yyq = ! yycount ? ", expecting " : " or ";
+			yyp = yystpcpy (yyp, yyq);
+			yyp = yystpcpy (yyp, yytname[yyx]);
+			yycount++;
+		      }
+		}
+	      yyerror (yymsg);
+	      YYSTACK_FREE (yymsg);
+	    }
+	  else
+	    yyerror ("syntax error; also virtual memory exhausted");
+	}
+      else
+#endif /* YYERROR_VERBOSE */
+	yyerror ("syntax error");
+    }
+
+
+
+  if (yyerrstatus == 3)
+    {
+      /* If just tried and failed to reuse lookahead token after an
+	 error, discard it.  */
+
+      /* Return failure if at end of input.  */
+      if (yychar == YYEOF)
+        {
+	  /* Pop the error token.  */
+          YYPOPSTACK;
+	  /* Pop the rest of the stack.  */
+	  while (yyss < yyssp)
+	    {
+	      YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp);
+	      yydestruct (yystos[*yyssp], yyvsp);
+	      YYPOPSTACK;
+	    }
+	  YYABORT;
+        }
+
+      YYDSYMPRINTF ("Error: discarding", yytoken, &yylval, &yylloc);
+      yydestruct (yytoken, &yylval);
+      yychar = YYEMPTY;
+
+    }
+
+  /* Else will try to reuse lookahead token after shifting the error
+     token.  */
+  goto yyerrlab1;
+
+
+/*----------------------------------------------------.
+| yyerrlab1 -- error raised explicitly by an action.  |
+`----------------------------------------------------*/
+yyerrlab1:
+  yyerrstatus = 3;	/* Each real token shifted decrements this.  */
+
+  for (;;)
+    {
+      yyn = yypact[yystate];
+      if (yyn != YYPACT_NINF)
+	{
+	  yyn += YYTERROR;
+	  if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+	    {
+	      yyn = yytable[yyn];
+	      if (0 < yyn)
+		break;
+	    }
+	}
+
+      /* Pop the current state because it cannot handle the error token.  */
+      if (yyssp == yyss)
+	YYABORT;
+
+      YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp);
+      yydestruct (yystos[yystate], yyvsp);
+      yyvsp--;
+      yystate = *--yyssp;
+
+      YY_STACK_PRINT (yyss, yyssp);
+    }
+
+  if (yyn == YYFINAL)
+    YYACCEPT;
+
+  YYDPRINTF ((stderr, "Shifting error token, "));
+
+  *++yyvsp = yylval;
+
+
+  yystate = yyn;
+  goto yynewstate;
+
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here.  |
+`-------------------------------------*/
+yyacceptlab:
+  yyresult = 0;
+  goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here.  |
+`-----------------------------------*/
+yyabortlab:
+  yyresult = 1;
+  goto yyreturn;
+
+#ifndef yyoverflow
+/*----------------------------------------------.
+| yyoverflowlab -- parser overflow comes here.  |
+`----------------------------------------------*/
+yyoverflowlab:
+  yyerror ("parser stack overflow");
+  yyresult = 2;
+  /* Fall through.  */
+#endif
+
+yyreturn:
+#ifndef yyoverflow
+  if (yyss != yyssa)
+    YYSTACK_FREE (yyss);
+#endif
+  return yyresult;
+}
+
+
+#line 205 "plural.y"
+
+
+void
+internal_function
+FREE_EXPRESSION (struct expression *exp)
+{
+  if (exp == NULL)
+    return;
+
+  /* Handle the recursive case.  */
+  switch (exp->nargs)
+    {
+    case 3:
+      FREE_EXPRESSION (exp->val.args[2]);
+      /* FALLTHROUGH */
+    case 2:
+      FREE_EXPRESSION (exp->val.args[1]);
+      /* FALLTHROUGH */
+    case 1:
+      FREE_EXPRESSION (exp->val.args[0]);
+      /* FALLTHROUGH */
+    default:
+      break;
+    }
+
+  free (exp);
+}
+
+
+static int
+yylex (YYSTYPE *lval, const char **pexp)
+{
+  const char *exp = *pexp;
+  int result;
+
+  while (1)
+    {
+      if (exp[0] == '\0')
+	{
+	  *pexp = exp;
+	  return YYEOF;
+	}
+
+      if (exp[0] != ' ' && exp[0] != '\t')
+	break;
+
+      ++exp;
+    }
+
+  result = *exp++;
+  switch (result)
+    {
+    case '0': case '1': case '2': case '3': case '4':
+    case '5': case '6': case '7': case '8': case '9':
+      {
+	unsigned long int n = result - '0';
+	while (exp[0] >= '0' && exp[0] <= '9')
+	  {
+	    n *= 10;
+	    n += exp[0] - '0';
+	    ++exp;
+	  }
+	lval->num = n;
+	result = NUMBER;
+      }
+      break;
+
+    case '=':
+      if (exp[0] == '=')
+	{
+	  ++exp;
+	  lval->op = equal;
+	  result = EQUOP2;
+	}
+      else
+	result = YYERRCODE;
+      break;
+
+    case '!':
+      if (exp[0] == '=')
+	{
+	  ++exp;
+	  lval->op = not_equal;
+	  result = EQUOP2;
+	}
+      break;
+
+    case '&':
+    case '|':
+      if (exp[0] == result)
+	++exp;
+      else
+	result = YYERRCODE;
+      break;
+
+    case '<':
+      if (exp[0] == '=')
+	{
+	  ++exp;
+	  lval->op = less_or_equal;
+	}
+      else
+	lval->op = less_than;
+      result = CMPOP2;
+      break;
+
+    case '>':
+      if (exp[0] == '=')
+	{
+	  ++exp;
+	  lval->op = greater_or_equal;
+	}
+      else
+	lval->op = greater_than;
+      result = CMPOP2;
+      break;
+
+    case '*':
+      lval->op = mult;
+      result = MULOP2;
+      break;
+
+    case '/':
+      lval->op = divide;
+      result = MULOP2;
+      break;
+
+    case '%':
+      lval->op = module;
+      result = MULOP2;
+      break;
+
+    case '+':
+      lval->op = plus;
+      result = ADDOP2;
+      break;
+
+    case '-':
+      lval->op = minus;
+      result = ADDOP2;
+      break;
+
+    case 'n':
+    case '?':
+    case ':':
+    case '(':
+    case ')':
+      /* Nothing, just return the character.  */
+      break;
+
+    case ';':
+    case '\n':
+    case '\0':
+      /* Be safe and let the user call this function again.  */
+      --exp;
+      result = YYEOF;
+      break;
+
+    default:
+      result = YYERRCODE;
+#if YYDEBUG != 0
+      --exp;
+#endif
+      break;
+    }
+
+  *pexp = exp;
+
+  return result;
+}
+
+
+static void
+yyerror (const char *str)
+{
+  /* Do nothing.  We don't print error messages here.  */
+}
+