Regenerate.

[bison.git] / tests / calc.at

diff --git a/tests/calc.at b/tests/calc.at
index aade61ccbd0d2439a026fd496c42005fa1053990..dedf568ed9a99f34899a1d18408d86c9b4e0b678 100644 (file)
--- a/tests/calc.at
+++ b/tests/calc.at
@@ -1,5 +1,7 @@
-# Checking the output filenames.                         -*- Autotest -*-
-# Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+# Simple calculator.                         -*- Autotest -*-
+
+# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 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
 
 # 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


@@ -13,8 +15,8 @@
 
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 
 # 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.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.

 
 ## ---------------------------------------------------- ##
 ## Compile the grammar described in the documentation.  ##
 
 ## ---------------------------------------------------- ##
 ## Compile the grammar described in the documentation.  ##


@@ -37,48 +39,70 @@ m4_define([_AT_DATA_CALC_Y],
        [m4_fatal([$0: Invalid arguments: $@])])dnl
 AT_DATA_GRAMMAR([calc.y],
 [[/* Infix notation calculator--calc */
        [m4_fatal([$0: Invalid arguments: $@])])dnl
 AT_DATA_GRAMMAR([calc.y],
 [[/* Infix notation calculator--calc */

-]$4[
+]$4
+AT_SKEL_CC_IF(
+[%define "global_tokens_and_yystype"])[

 %{
 #include <stdio.h>
 
 %{
 #include <stdio.h>
 

-#if STDC_HEADERS
-# include <stdlib.h>
-# include <string.h>
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */

 #endif
 #include <ctype.h>
 #endif
 #include <ctype.h>

-
-extern void perror (const char *s);
+#define USE(Var)

 
 /* Exercise pre-prologue dependency to %union.  */
 
 /* Exercise pre-prologue dependency to %union.  */

-typedef int value;
+typedef int semantic_value;

 
 

-static value global_result = 0;
+static semantic_value global_result = 0;

 static int global_count = 0;
 static int global_count = 0;

-
-]AT_LALR1_CC_IF([typedef yy::Location YYLTYPE;])[

 %}
 
 /* Exercise %union. */
 %union
 {
 %}
 
 /* Exercise %union. */
 %union
 {

-  value ival;
+  semantic_value ival;

 };
 
 %{
 static int power (int base, int exponent);
 };
 
 %{
 static int power (int base, int exponent);

-]AT_LALR1_CC_IF([], [
-/* yyerror receives the location if:
+]AT_SKEL_CC_IF(
+[#ifndef YYLTYPE
+[#] define YYLTYPE AT_NAME_PREFIX::location
+#endif
+#define first_line   begin.line
+#define first_column begin.column
+#define last_line    end.line
+#define last_column  end.column
+],
+[/* yyerror receives the location if:

    - %location & %pure & %glr
    - %location & %pure & %yacc & %parse-param. */
    - %location & %pure & %glr
    - %location & %pure & %yacc & %parse-param. */

-static void yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *yylloc, ])
-                     AT_PARAM_IF([value *result, int *count, ])
+static void yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])
+                     AT_PARAM_IF([semantic_value *result, int *count, ])

                      const char *s
                      );])[
 static int yylex (]AT_LEX_FORMALS[);
                      const char *s
                      );])[
 static int yylex (]AT_LEX_FORMALS[);

-static int yygetc (]AT_LEX_FORMALS[);
-static void yyungetc (]AT_LEX_PRE_FORMALS[ int c);
+static int get_char (]AT_LEX_FORMALS[);
+static void unget_char (]AT_LEX_PRE_FORMALS[ int c);

 %}
 
 %}
 

+]AT_SKEL_CC_IF(
+[/* The lalr1.cc skeleton, for backward compatibility, defines
+   a constructor for position that initializes the filename.  The
+   glr.cc skeleton does not (and in fact cannot: location/position
+   are stored in a union, from which objects with constructors are
+   excluded in C++. */
+%initial-action {
+  @$.initialize (0);
+}
+])[
+

 /* Bison Declarations */
 %token CALC_EOF 0 "end of input"
 %token <ival> NUM "number"
 /* Bison Declarations */
 %token CALC_EOF 0 "end of input"
 %token <ival> NUM "number"


@@ -99,7 +123,7 @@ input:
 
 line:
   '\n'
 
 line:
   '\n'

-| exp '\n'           { ]AT_PARAM_IF([*result = global_result = $1;])[ }
+| exp '\n'           { ]AT_PARAM_IF([*result = global_result = $1], [USE ($1)])[; }

 ;
 
 exp:
 ;
 
 exp:


@@ -118,39 +142,33 @@ exp:
 | exp '^' exp        { $$ = power ($1, $3); }
 | '(' exp ')'        { $$ = $2;             }
 | '(' error ')'      { $$ = 1111;           }
 | exp '^' exp        { $$ = power ($1, $3); }
 | '(' exp ')'        { $$ = $2;             }
 | '(' error ')'      { $$ = 1111;           }

-| '!'                { YYERROR;             }
+| '!'                { $$ = 0; YYERROR;     }
+| '-' error          { $$ = 0; YYERROR;     }

 ;
 %%
 ;
 %%

-/* The input. */
-static FILE *yyin;
-
-]AT_LALR1_CC_IF(
-[/* Currently, print_ is required in C++. */
-void
-yy::Parser::print_ ()
-{
-AT_LOCATION_IF([
-  std::cerr << location;])
-}
+/* The input.  */
+static FILE *input;

 
 

-/* A C++ error reporting function. */
+]AT_SKEL_CC_IF(
+[/* A C++ error reporting function.  */

 void
 void

-yy::Parser::error_ ()
+AT_NAME_PREFIX::parser::error (const location& l, const std::string& m)

 {
 {

-  std::cerr << AT_LOCATION_IF([location << ": " << ])message << std::endl;
+  (void) l;
+  std::cerr << AT_LOCATION_IF([l << ": " << ])m << std::endl;

 }
 
 int
 }
 
 int

-yyparse (void)
+yyparse (AT_PARAM_IF([semantic_value *result, int *count]))

 {
 {

-  yy::Parser parser = yy::Parser (!!YYDEBUG[]AT_LOCATION_IF([,
-                                  yy::Location::Location ()]));
+  AT_NAME_PREFIX::parser parser[]AT_PARAM_IF([ (result, count)]);
+  parser.set_debug_level (!!YYDEBUG);

   return parser.parse ();
 }
 ],
 [static void
   return parser.parse ();
 }
 ],
 [static void

-yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *yylloc, ])
-         AT_PARAM_IF([value *result, int *count, ])
+yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])
+         AT_PARAM_IF([semantic_value *result, int *count, ])

          const char *s)
 {
 AT_PARAM_IF([(void) result; (void) count;])
          const char *s)
 {
 AT_PARAM_IF([(void) result; (void) count;])


@@ -172,61 +190,56 @@ AT_YYERROR_SEES_LOC_IF([
 static YYLTYPE last_yylloc;
 ])[
 static int
 static YYLTYPE last_yylloc;
 ])[
 static int

-yygetc (]AT_LEX_FORMALS[)
+get_char (]AT_LEX_FORMALS[)

 {
 {

-  int res = getc (yyin);
+  int res = getc (input);

   ]AT_USE_LEX_ARGS[;
 ]AT_LOCATION_IF([
   last_yylloc = AT_LOC;
   if (res == '\n')
     {
   ]AT_USE_LEX_ARGS[;
 ]AT_LOCATION_IF([
   last_yylloc = AT_LOC;
   if (res == '\n')
     {

-AT_LALR1_CC_IF(
-[     AT_LOC.end.line++;
-      AT_LOC.end.column = 0;],
-[     AT_LOC.last_line++;
-      AT_LOC.last_column = 0;])
+      AT_LOC.last_line++;
+      AT_LOC.last_column = 0;

     }
   else
     }
   else

-AT_LALR1_CC_IF(
-[    AT_LOC.end.column++;],
-[    AT_LOC.last_column++;])
+    AT_LOC.last_column++;

 ])[
   return res;
 }
 
 
 static void
 ])[
   return res;
 }
 
 
 static void

-yyungetc (]AT_LEX_PRE_FORMALS[ int c)
+unget_char (]AT_LEX_PRE_FORMALS[ int c)

 {
   ]AT_USE_LEX_ARGS[;
 ]AT_LOCATION_IF([
   /* Wrong when C == `\n'. */
   AT_LOC = last_yylloc;
 ])[
 {
   ]AT_USE_LEX_ARGS[;
 ]AT_LOCATION_IF([
   /* Wrong when C == `\n'. */
   AT_LOC = last_yylloc;
 ])[

-  ungetc (c, yyin);
+  ungetc (c, input);

 }
 
 static int
 read_signed_integer (]AT_LEX_FORMALS[)
 {
 }
 
 static int
 read_signed_integer (]AT_LEX_FORMALS[)
 {

-  int c = yygetc (]AT_LEX_ARGS[);
+  int c = get_char (]AT_LEX_ARGS[);

   int sign = 1;
   int n = 0;
 
   ]AT_USE_LEX_ARGS[;
   if (c == '-')
     {
   int sign = 1;
   int n = 0;
 
   ]AT_USE_LEX_ARGS[;
   if (c == '-')
     {

-      c = yygetc (]AT_LEX_ARGS[);
+      c = get_char (]AT_LEX_ARGS[);

       sign = -1;
     }
 
   while (isdigit (c))
     {
       n = 10 * n + (c - '0');
       sign = -1;
     }
 
   while (isdigit (c))
     {
       n = 10 * n + (c - '0');

-      c = yygetc (]AT_LEX_ARGS[);
+      c = get_char (]AT_LEX_ARGS[);

     }
 
     }
 

-  yyungetc (]AT_LEX_PRE_ARGS[ c);
+  unget_char (]AT_LEX_PRE_ARGS[ c);

 
   return sign * n;
 }
 
   return sign * n;
 }


@@ -248,33 +261,30 @@ yylex (]AT_LEX_FORMALS[)
   if (init)
     {
       init = 0;
   if (init)
     {
       init = 0;

-]AT_LALR1_CC_IF([],
-[AT_LOCATION_IF([
+]AT_LOCATION_IF([

       AT_LOC.last_column = 0;
       AT_LOC.last_line = 1;
       AT_LOC.last_column = 0;
       AT_LOC.last_line = 1;

-])])[
+])[

     }
 
     }
 

-]AT_LOCATION_IF([AT_LALR1_CC_IF(
-[ AT_LOC.begin = AT_LOC.end;],
-[ AT_LOC.first_column = AT_LOC.last_column;
+]AT_LOCATION_IF([
+ AT_LOC.first_column = AT_LOC.last_column;

   AT_LOC.first_line   = AT_LOC.last_line;
   AT_LOC.first_line   = AT_LOC.last_line;

-])])[
+])[

 
   /* Skip white space.  */
 
   /* Skip white space.  */

-  while ((c = yygetc (]AT_LEX_ARGS[)) == ' ' || c == '\t')
+  while ((c = get_char (]AT_LEX_ARGS[)) == ' ' || c == '\t')

     {
     {

-]AT_LOCATION_IF([AT_LALR1_CC_IF(
-[     AT_LOC.begin = AT_LOC.end;],
+]AT_LOCATION_IF(

 [     AT_LOC.first_column = AT_LOC.last_column;
       AT_LOC.first_line   = AT_LOC.last_line;
 [     AT_LOC.first_column = AT_LOC.last_column;
       AT_LOC.first_line   = AT_LOC.last_line;

-])])[
+])[

     }
 
   /* process numbers   */
   if (c == '.' || isdigit (c))
     {
     }
 
   /* process numbers   */
   if (c == '.' || isdigit (c))
     {

-      yyungetc (]AT_LEX_PRE_ARGS[ c);
+      unget_char (]AT_LEX_PRE_ARGS[ c);

       ]AT_VAL[.ival = read_signed_integer (]AT_LEX_ARGS[);
       return NUM;
     }
       ]AT_VAL[.ival = read_signed_integer (]AT_LEX_ARGS[);
       return NUM;
     }


@@ -292,7 +302,7 @@ power (int base, int exponent)
 {
   int res = 1;
   if (exponent < 0)
 {
   int res = 1;
   if (exponent < 0)

-    exit (1);
+    exit (3);

   for (/* Niente */; exponent; --exponent)
     res *= base;
   return res;
   for (/* Niente */; exponent; --exponent)
     res *= base;
   return res;


@@ -302,22 +312,27 @@ power (int base, int exponent)
 int
 main (int argc, const char **argv)
 {
 int
 main (int argc, const char **argv)
 {

-  value result = 0;
+  semantic_value result = 0;

   int count = 0;
   int status;
 
   int count = 0;
   int status;
 

+  /* This used to be alarm (10), but that isn't enough time for
+     a July 1995 vintage DEC Alphastation 200 4/100 system,
+     according to Nelson H. F. Beebe.  100 seconds is enough.  */
+  alarm (100);
+

   if (argc == 2)
   if (argc == 2)

-    yyin = fopen (argv[1], "r");
+    input = fopen (argv[1], "r");

   else
   else

-    yyin = stdin;
+    input = stdin;

 
 

-  if (!yyin)
+  if (!input)

     {
       perror (argv[1]);
     {
       perror (argv[1]);

-      exit (1);
+      return 3;

     }
 
     }
 

-]AT_LALR1_CC_IF([], [m4_bmatch([$4], [%debug],
+]AT_SKEL_CC_IF([], [m4_bmatch([$4], [%debug],

 [  yydebug = 1;])])[
   status = yyparse (]AT_PARAM_IF([&result, &count])[);
   if (global_result != result)
 [  yydebug = 1;])])[
   status = yyparse (]AT_PARAM_IF([&result, &count])[);
   if (global_result != result)


@@ -339,12 +354,14 @@ m4_define([AT_DATA_CALC_Y],
 
 
 
 
 
 

-# _AT_CHECK_CALC(BISON-OPTIONS, INPUT, [NUM-STDERR-LINES = 0])
-# ------------------------------------------------------------
+# _AT_CHECK_CALC(BISON-OPTIONS, INPUT, [NUM-STDERR-LINES])
+# --------------------------------------------------------

 # Run `calc' on INPUT and expect no STDOUT nor STDERR.
 #
 # If BISON-OPTIONS contains `%debug' but not `%glr-parser', then
 # Run `calc' on INPUT and expect no STDOUT nor STDERR.
 #
 # If BISON-OPTIONS contains `%debug' but not `%glr-parser', then

+#

 # NUM-STDERR-LINES is the number of expected lines on stderr.
 # NUM-STDERR-LINES is the number of expected lines on stderr.

+# Currently this is ignored, though, since the output format is fluctuating.

 #
 # We don't count GLR's traces yet, since its traces are somewhat
 # different from LALR's.
 #
 # We don't count GLR's traces yet, since its traces are somewhat
 # different from LALR's.


@@ -353,17 +370,11 @@ m4_define([_AT_CHECK_CALC],
 [[$2
 ]])
 AT_PARSER_CHECK([./calc input], 0, [], [stderr])
 [[$2
 ]])
 AT_PARSER_CHECK([./calc input], 0, [], [stderr])

-m4_bmatch([$1],
-  [%debug.*%glr\|%glr.*%debug],
-     [],
-  [%debug],
-     [AT_CHECK([wc -l <stderr | sed 's/[[^0-9]]//g'], 0, [$3
-])])

 ])
 
 
 # _AT_CHECK_CALC_ERROR(BISON-OPTIONS, EXIT-STATUS, INPUT,
 ])
 
 
 # _AT_CHECK_CALC_ERROR(BISON-OPTIONS, EXIT-STATUS, INPUT,

-#                      [NUM-DEBUG-LINES],
+#                      [NUM-STDERR-LINES],

 #                      [VERBOSE-AND-LOCATED-ERROR-MESSAGE])
 # ---------------------------------------------------------
 # Run `calc' on INPUT, and expect a `syntax error' message.
 #                      [VERBOSE-AND-LOCATED-ERROR-MESSAGE])
 # ---------------------------------------------------------
 # Run `calc' on INPUT, and expect a `syntax error' message.


@@ -371,6 +382,9 @@ m4_bmatch([$1],
 # If INPUT starts with a slash, it is used as absolute input file name,
 # otherwise as contents.
 #
 # If INPUT starts with a slash, it is used as absolute input file name,
 # otherwise as contents.
 #

+# NUM-STDERR-LINES is the number of expected lines on stderr.
+# Currently this is ignored, though, since the output format is fluctuating.
+#

 # If BISON-OPTIONS contains `%location', then make sure the ERROR-LOCATION
 # is correctly output on stderr.
 #
 # If BISON-OPTIONS contains `%location', then make sure the ERROR-LOCATION
 # is correctly output on stderr.
 #


@@ -387,12 +401,6 @@ m4_define([_AT_CHECK_CALC_ERROR],
 [[$3
 ]])
 AT_PARSER_CHECK([./calc input], $2, [], [stderr])])
 [[$3
 ]])
 AT_PARSER_CHECK([./calc input], $2, [], [stderr])])

-m4_bmatch([$1],
-  [%debug.*%glr\|%glr.*%debug],
-     [],
-  [%debug],
-     [AT_CHECK([wc -l <stderr | sed 's/[[^0-9]]//g'], 0, [$4
-])])

 
 # Normalize the observed and expected error messages, depending upon the
 # options.
 
 # Normalize the observed and expected error messages, depending upon the
 # options.


@@ -404,9 +412,11 @@ sed '/^Starting/d
 /^Reducing/d
 /^Shifting/d
 /^state/d
 /^Reducing/d
 /^Shifting/d
 /^state/d

+/^Cleanup:/d

 /^Error:/d
 /^Next/d
 /^Discarding/d
 /^Error:/d
 /^Next/d
 /^Discarding/d

+/ \$[[0-9$]]* = /d

 /^yydestructor:/d' stderr >at-stderr
 mv at-stderr stderr
 # 2. Create the reference error message.
 /^yydestructor:/d' stderr >at-stderr
 mv at-stderr stderr
 # 2. Create the reference error message.


@@ -426,120 +436,26 @@ AT_CHECK([cat stderr], 0, [expout])
 ])
 
 
 ])
 
 

-# AT_CALC_PUSHDEFS($1, $2, [BISON-OPTIONS])
-# -----------------------------------------
-# This macro works around the impossibility to define macros
-# inside macros, because issuing `[$1]' is not possible in M4 :(.
-# This sucks hard, GNU M4 should really provide M5 like $$1.
-m4_define([AT_CHECK_PUSHDEFS],
-[m4_if([$1$2], $[1]$[2], [],
-       [m4_fatal([$0: Invalid arguments: $@])])dnl
-m4_pushdef([AT_LALR1_CC_IF],
-[m4_bmatch([$3], ["lalr1.cc"], [$1], [$2])])
-m4_pushdef([AT_GLR_IF],
-[m4_bmatch([$3], [%glr-parser], [$1], [$2])])
-# Using yacc.c?
-m4_pushdef([AT_YACC_IF],
-[m4_bmatch([$3], [%glr-parser\|%skeleton], [$2], [$1])])
-m4_pushdef([AT_PARAM_IF],
-[m4_bmatch([$3], [%parse-param], [$1], [$2])])
-m4_pushdef([AT_LOCATION_IF],
-[m4_bmatch([$3], [%locations], [$1], [$2])])
-m4_pushdef([AT_PURE_IF],
-[m4_bmatch([$3], [%pure-parser], [$1], [$2])])
-m4_pushdef([AT_PURE_AND_LOC_IF],
-[m4_bmatch([$3], [%locations.*%pure-parser\|%pure-parser.*%locations],
-           [$1], [$2])])
-m4_pushdef([AT_GLR_OR_PARAM_IF],
-[m4_bmatch([$3], [%glr-parser\|%parse-param], [$1], [$2])])
-
-# yyerror receives the location if %location & %pure & (%glr or %parse-param).
-m4_pushdef([AT_YYERROR_ARG_LOC_IF],
-[AT_GLR_OR_PARAM_IF([AT_PURE_AND_LOC_IF([$1], [$2])],
-                    [$2])])
-# yyerror always sees the locations (when activated), except if
-# yacc & pure & !param.
-m4_pushdef([AT_YYERROR_SEES_LOC_IF],
-[AT_LOCATION_IF([AT_YACC_IF([AT_PURE_IF([AT_PARAM_IF([$1], [$2])],
-                                        [$1])],
-                            [$1])],
-                [$2])])
-
-# The interface is pure: either because %pure-parser, or because we
-# are using the C++ parsers.
-m4_pushdef([AT_PURE_LEX_IF],
-[AT_PURE_IF([$1],
-            [AT_LALR1_CC_IF([$1], [$2])])])
-
-AT_PURE_LEX_IF(
-[m4_pushdef([AT_LOC], [(*yylloc)])
- m4_pushdef([AT_VAL], [(*yylval)])
- m4_pushdef([AT_LEX_FORMALS],
-            [YYSTYPE *yylval[]AT_LOCATION_IF([, YYLTYPE *yylloc])])
- m4_pushdef([AT_LEX_ARGS],
-            [yylval[]AT_LOCATION_IF([, yylloc])])
- m4_pushdef([AT_USE_LEX_ARGS],
-            [(void) yylval;AT_LOCATION_IF([(void) yylloc])])
- m4_pushdef([AT_LEX_PRE_FORMALS],
-            [AT_LEX_FORMALS, ])
- m4_pushdef([AT_LEX_PRE_ARGS],
-            [AT_LEX_ARGS, ])
-],
-[m4_pushdef([AT_LOC], [(yylloc)])
- m4_pushdef([AT_VAL], [(yylval)])
- m4_pushdef([AT_LEX_FORMALS],     [void])
- m4_pushdef([AT_LEX_ARGS],        [])
- m4_pushdef([AT_USE_LEX_ARGS],    [])
- m4_pushdef([AT_LEX_PRE_FORMALS], [])
- m4_pushdef([AT_LEX_PRE_ARGS],    [])
-])
-])# AT_CALC_PUSHDEFS
-
-
-# AT_CALC_POPDEFS
-# ---------------
-m4_define([AT_CHECK_POPDEFS],
-[m4_popdef([AT_LEX_PRE_ARGS])
-m4_popdef([AT_LEX_PRE_FORMALS])
-m4_popdef([AT_USE_LEX_ARGS])
-m4_popdef([AT_LEX_ARGS])
-m4_popdef([AT_LEX_FORMALS])
-m4_popdef([AT_VAL])
-m4_popdef([AT_LOC])
-m4_popdef([AT_PURE_LEX_IF])
-m4_popdef([AT_YYERROR_SEES_LOC_IF])
-m4_popdef([AT_YYERROR_ARG_LOC_IF])
-m4_popdef([AT_GLR_OR_PARAM_IF])
-m4_popdef([AT_PURE_AND_LOC_IF])
-m4_popdef([AT_LOCATION_IF])
-m4_popdef([AT_PARAM_IF])
-m4_popdef([AT_YACC_IF])
-m4_popdef([AT_GLR_IF])
-m4_popdef([AT_LALR1_CC_IF])
-])
-
-
-
-# AT_CHECK_CALC([BISON-OPTIONS])
-# ------------------------------
+# AT_CHECK_CALC([BISON-OPTIONS, [EXPECTED-TO-FAIL]])
+# --------------------------------------------------

 # Start a testing chunk which compiles `calc' grammar with
 # BISON-OPTIONS, and performs several tests over the parser.
 # Start a testing chunk which compiles `calc' grammar with
 # BISON-OPTIONS, and performs several tests over the parser.

+# However, if EXPECTED-TO-FAIL is nonempty, this test is expected to fail.

 m4_define([AT_CHECK_CALC],
 [# We use integers to avoid dependencies upon the precision of doubles.
 AT_SETUP([Calculator $1])
 
 m4_define([AT_CHECK_CALC],
 [# We use integers to avoid dependencies upon the precision of doubles.
 AT_SETUP([Calculator $1])
 

-AT_CHECK_PUSHDEFS($[1], $[2], [$1])
+m4_ifval([$2], [AT_CHECK([exit 77])])

 
 

-AT_DATA_CALC_Y([$1])
+AT_BISON_OPTION_PUSHDEFS([$1])

 
 

-# Specify the output files to avoid problems on different file systems.
-AT_CHECK([bison -o calc.c calc.y],
-         [0], [], [])
+AT_DATA_CALC_Y([$1])

 
 

-AT_LALR1_CC_IF(
-[AT_CHECK([$CXX --version || exit 77], 0, ignore, ignore)
-AT_COMPILE_CXX([calc])],
-[AT_COMPILE([calc])])
+AT_SKEL_CC_IF(
+  [AT_CHECK([bison -o calc.cc calc.y])
+   AT_COMPILE_CXX([calc])],
+  [AT_CHECK([bison -o calc.c calc.y])
+   AT_COMPILE([calc])])

 
 # Test the priorities.
 _AT_CHECK_CALC([$1],
 
 # Test the priorities.
 _AT_CHECK_CALC([$1],


@@ -556,25 +472,25 @@ _AT_CHECK_CALC([$1],
 
 2^2^3 = 256
 (2^2)^3 = 64],
 
 2^2^3 = 256
 (2^2)^3 = 64],

-               [486])
+               [842])

 
 # Some syntax errors.
 
 # Some syntax errors.

-_AT_CHECK_CALC_ERROR([$1], [1], [0 0], [11],
-                     [1.2: syntax error, unexpected "number"])
-_AT_CHECK_CALC_ERROR([$1], [1], [1//2], [15],
-                     [1.2: syntax error, unexpected '/', expecting "number" or '-' or '(' or '!'])
-_AT_CHECK_CALC_ERROR([$1], [1], [error], [4],
+_AT_CHECK_CALC_ERROR([$1], [1], [0 0], [15],
+                     [1.2: syntax error, unexpected number])
+_AT_CHECK_CALC_ERROR([$1], [1], [1//2], [20],
+                     [1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'])
+_AT_CHECK_CALC_ERROR([$1], [1], [error], [5],

                      [1.0: syntax error, unexpected $undefined])
                      [1.0: syntax error, unexpected $undefined])

-_AT_CHECK_CALC_ERROR([$1], [1], [1 = 2 = 3], [22],
+_AT_CHECK_CALC_ERROR([$1], [1], [1 = 2 = 3], [30],

                      [1.6: syntax error, unexpected '='])
 _AT_CHECK_CALC_ERROR([$1], [1],
                      [
 +1],
                      [1.6: syntax error, unexpected '='])
 _AT_CHECK_CALC_ERROR([$1], [1],
                      [
 +1],

-                     [14],
+                     [20],

                      [2.0: syntax error, unexpected '+'])
 # Exercise error messages with EOF: work on an empty file.
 _AT_CHECK_CALC_ERROR([$1], [1], [/dev/null], [4],
                      [2.0: syntax error, unexpected '+'])
 # Exercise error messages with EOF: work on an empty file.
 _AT_CHECK_CALC_ERROR([$1], [1], [/dev/null], [4],

-                     [1.0: syntax error, unexpected "end of input"])
+                     [1.0: syntax error, unexpected end of input])

 
 # Exercise the error token: without it, we die at the first error,
 # hence be sure to
 
 # Exercise the error token: without it, we die at the first error,
 # hence be sure to


@@ -587,26 +503,30 @@ _AT_CHECK_CALC_ERROR([$1], [1], [/dev/null], [4],
 #
 # - test the action associated to `error'
 #
 #
 # - test the action associated to `error'
 #

-# - check the lookahead that triggers an error is not discarded
-#   when we enter error recovery.  Below, the lookahead causing the
+# - check the look-ahead that triggers an error is not discarded
+#   when we enter error recovery.  Below, the look-ahead causing the

 #   first error is ")", which is needed to recover from the error and
 #   produce the "0" that triggers the "0 != 1" error.
 #
 _AT_CHECK_CALC_ERROR([$1], [0],
                      [() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1],
 #   first error is ")", which is needed to recover from the error and
 #   produce the "0" that triggers the "0 != 1" error.
 #
 _AT_CHECK_CALC_ERROR([$1], [0],
                      [() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1],

-                     [156],
-[1.1: syntax error, unexpected ')', expecting "number" or '-' or '(' or '!'
-1.17: syntax error, unexpected ')', expecting "number" or '-' or '(' or '!'
-1.22: syntax error, unexpected '*', expecting "number" or '-' or '(' or '!'
-1.40: syntax error, unexpected '*', expecting "number" or '-' or '(' or '!'
+                     [250],
+[1.1: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.17: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.22: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.40: syntax error, unexpected '*', expecting number or '-' or '(' or '!'

 calc: error: 4444 != 1])
 
 # The same, but this time exercising explicitly triggered syntax errors.
 calc: error: 4444 != 1])
 
 # The same, but this time exercising explicitly triggered syntax errors.

-# POSIX says the lookahead causing the error should not be discarded.
-_AT_CHECK_CALC_ERROR([$1], [0], [(!) + (0 0) = 1], [64],
-[1.9: syntax error, unexpected "number"
+# POSIX says the look-ahead causing the error should not be discarded.
+_AT_CHECK_CALC_ERROR([$1], [0], [(!) + (0 0) = 1], [102],
+[1.9: syntax error, unexpected number
+calc: error: 2222 != 1])
+_AT_CHECK_CALC_ERROR([$1], [0], [(- *) + (0 0) = 1], [113],
+[1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.11: syntax error, unexpected number

 calc: error: 2222 != 1])
 calc: error: 2222 != 1])

-AT_CHECK_POPDEFS
+AT_BISON_OPTION_POPDEFS

 
 AT_CLEANUP
 ])# AT_CHECK_CALC
 
 AT_CLEANUP
 ])# AT_CHECK_CALC


@@ -618,7 +538,7 @@ AT_CLEANUP
 # Simple LALR Calculator.  #
 # ------------------------ #
 
 # Simple LALR Calculator.  #
 # ------------------------ #
 

-AT_BANNER([[Simple LALR Calculator.]])
+AT_BANNER([[Simple LALR(1) Calculator.]])

 
 # AT_CHECK_CALC_LALR([BISON-OPTIONS])
 # -----------------------------------
 
 # AT_CHECK_CALC_LALR([BISON-OPTIONS])
 # -----------------------------------


@@ -636,6 +556,7 @@ AT_CHECK_CALC_LALR([%verbose])
 AT_CHECK_CALC_LALR([%yacc])
 AT_CHECK_CALC_LALR([%error-verbose])
 
 AT_CHECK_CALC_LALR([%yacc])
 AT_CHECK_CALC_LALR([%error-verbose])
 

+AT_CHECK_CALC_LALR([%pure-parser %locations])

 AT_CHECK_CALC_LALR([%error-verbose %locations])
 
 AT_CHECK_CALC_LALR([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc])
 AT_CHECK_CALC_LALR([%error-verbose %locations])
 
 AT_CHECK_CALC_LALR([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc])


@@ -645,7 +566,7 @@ AT_CHECK_CALC_LALR([%error-verbose %debug %locations %defines %name-prefix="calc
 
 AT_CHECK_CALC_LALR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
 
 
 AT_CHECK_CALC_LALR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
 

-AT_CHECK_CALC_LALR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {value *result} %parse-param {int *count}])
+AT_CHECK_CALC_LALR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])

 
 
 # ----------------------- #
 
 
 # ----------------------- #


@@ -671,6 +592,7 @@ AT_CHECK_CALC_GLR([%verbose])
 AT_CHECK_CALC_GLR([%yacc])
 AT_CHECK_CALC_GLR([%error-verbose])
 
 AT_CHECK_CALC_GLR([%yacc])
 AT_CHECK_CALC_GLR([%error-verbose])
 

+AT_CHECK_CALC_GLR([%pure-parser %locations])

 AT_CHECK_CALC_GLR([%error-verbose %locations])
 
 AT_CHECK_CALC_GLR([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc])
 AT_CHECK_CALC_GLR([%error-verbose %locations])
 
 AT_CHECK_CALC_GLR([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc])


@@ -680,40 +602,52 @@ AT_CHECK_CALC_GLR([%error-verbose %debug %locations %defines %name-prefix="calc"
 
 AT_CHECK_CALC_GLR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
 
 
 AT_CHECK_CALC_GLR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
 

-AT_CHECK_CALC_GLR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {value *result} %parse-param {int *count}])
+AT_CHECK_CALC_GLR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])

 
 
 # ----------------------------- #
 # Simple LALR1 C++ Calculator.  #
 # ----------------------------- #
 
 
 
 # ----------------------------- #
 # Simple LALR1 C++ Calculator.  #
 # ----------------------------- #
 

-AT_BANNER([[Simple LALR1 C++ Calculator.]])
+AT_BANNER([[Simple LALR(1) C++ Calculator.]])

 
 # AT_CHECK_CALC_LALR1_CC([BISON-OPTIONS])
 # ---------------------------------------
 # Start a testing chunk which compiles `calc' grammar with
 
 # AT_CHECK_CALC_LALR1_CC([BISON-OPTIONS])
 # ---------------------------------------
 # Start a testing chunk which compiles `calc' grammar with

-# BISON-OPTIONS and %glr-parser, and performs several tests over the parser.
+# the C++ skeleton, and performs several tests over the parser.

 m4_define([AT_CHECK_CALC_LALR1_CC],
 m4_define([AT_CHECK_CALC_LALR1_CC],

-[AT_CHECK_CALC([%skeleton "lalr1.cc"] $@)])
+[AT_CHECK_CALC([%skeleton "lalr1.cc" %defines %locations] $@)])
+
+AT_CHECK_CALC_LALR1_CC([])
+AT_CHECK_CALC_LALR1_CC([%error-verbose %name-prefix="calc" %verbose %yacc])
+
+AT_CHECK_CALC_LALR1_CC([%error-verbose %debug %name-prefix="calc" %verbose %yacc])

 
 

-# AT_CHECK_CALC_LALR1_CC()
+AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc])

 
 

-AT_CHECK_CALC_LALR1_CC([%defines %locations])
+AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])

 
 

-AT_CHECK_CALC_LALR1_CC([%defines])
-# AT_CHECK_CALC_LALR1_CC([%locations])
-# AT_CHECK_CALC_LALR1_CC([%name-prefix="calc"])
-# AT_CHECK_CALC_LALR1_CC([%verbose])
-# AT_CHECK_CALC_LALR1_CC([%yacc])
-# AT_CHECK_CALC_LALR1_CC([%error-verbose])

 
 

-# AT_CHECK_CALC_LALR1_CC([%error-verbose %locations])

 
 

-AT_CHECK_CALC_LALR1_CC([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc])
+# --------------------------- #
+# Simple GLR C++ Calculator.  #
+# --------------------------- #
+
+AT_BANNER([[Simple GLR C++ Calculator.]])
+
+# AT_CHECK_CALC_GLR_CC([BISON-OPTIONS])
+# -------------------------------------
+# Start a testing chunk which compiles `calc' grammar with
+# the GLR C++ skeleton, and performs several tests over the parser.
+m4_define([AT_CHECK_CALC_GLR_CC],
+[AT_CHECK_CALC([%skeleton "glr.cc" %defines %locations] $@)])
+
+#AT_CHECK_CALC_GLR_CC([])
+#AT_CHECK_CALC_GLR_CC([%error-verbose %name-prefix="calc" %verbose %yacc])

 
 

-# AT_CHECK_CALC_LALR1_CC([%debug])
-AT_CHECK_CALC_LALR1_CC([%error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
+# AT_CHECK_CALC_GLR_CC([%debug])
+#AT_CHECK_CALC_GLR_CC([%error-verbose %debug %name-prefix="calc" %verbose %yacc])

 
 

-AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
+AT_CHECK_CALC_GLR_CC([%pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc])

 
 

-# AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {value *result} %parse-param {int *count}])
+AT_CHECK_CALC_GLR_CC([%pure-parser %error-verbose %debug %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])