-# 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 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
%{
#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>
-extern void perror (const char *s);
-
/* 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;
%}
/* Exercise %union. */
%union
{
- value ival;
+ semantic_value ival;
};
%{
- %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, ])
+ AT_PARAM_IF([semantic_value *result, int *count, ])
const char *s
);])[
static int yylex (]AT_LEX_FORMALS[);
| '(' exp ')' { $$ = $2; }
| '(' error ')' { $$ = 1111; }
| '!' { YYERROR; }
+| '-' error { YYERROR; }
;
%%
/* The input. */
}
int
-yyparse (void)
+yyparse (AT_PARAM_IF([semantic_value *result, int *count]))
{
- yy::Parser parser (!!YYDEBUG[]AT_LOCATION_IF([, yy::Location::Location ()]));
+ yy::Parser parser (!!YYDEBUG[]AT_LOCATION_IF([, yy::Location ()])AT_PARAM_IF([, result, count]));
return parser.parse ();
}
],
[static void
yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *yylloc, ])
- AT_PARAM_IF([value *result, int *count, ])
+ AT_PARAM_IF([semantic_value *result, int *count, ])
const char *s)
{
AT_PARAM_IF([(void) result; (void) count;])
int
main (int argc, const char **argv)
{
- value result = 0;
+ semantic_value result = 0;
int count = 0;
int status;
+ alarm (10);
if (argc == 2)
yyin = fopen (argv[1], "r");
else
])
-# 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.
+# 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_ifval([$2], [AT_CHECK([exit 77])])
+
AT_BISON_OPTION_PUSHDEFS([$1])
AT_DATA_CALC_Y([$1])
-# Specify the output files to avoid problems on different file systems.
-AT_CHECK([bison -o calc.c calc.y])
-
-AT_LALR1_CC_IF([AT_COMPILE_CXX([calc])],
- [AT_COMPILE([calc])])
+AT_LALR1_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],
[486])
# Some syntax errors.
-_AT_CHECK_CALC_ERROR([$1], [1], [0 0], [11],
+_AT_CHECK_CALC_ERROR([$1], [1], [0 0], [12],
[1.2: syntax error, unexpected "number"])
-_AT_CHECK_CALC_ERROR([$1], [1], [1//2], [15],
+_AT_CHECK_CALC_ERROR([$1], [1], [1//2], [16],
[1.2: syntax error, unexpected '/', expecting "number" or '-' or '(' or '!'])
-_AT_CHECK_CALC_ERROR([$1], [1], [error], [4],
+_AT_CHECK_CALC_ERROR([$1], [1], [error], [5],
[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], [23],
[1.6: syntax error, unexpected '='])
_AT_CHECK_CALC_ERROR([$1], [1],
[
+1],
- [14],
+ [15],
[2.0: syntax error, unexpected '+'])
# Exercise error messages with EOF: work on an empty file.
-_AT_CHECK_CALC_ERROR([$1], [1], [/dev/null], [4],
+_AT_CHECK_CALC_ERROR([$1], [1], [/dev/null], [5],
[1.0: syntax error, unexpected "end of input"])
# Exercise the error token: without it, we die at the first 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.
#
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],
+# POSIX says the look-ahead causing the error should not be discarded.
+_AT_CHECK_CALC_ERROR([$1], [0], [(!) + (0 0) = 1], [62],
[1.9: syntax error, unexpected "number"
calc: error: 2222 != 1])
+_AT_CHECK_CALC_ERROR([$1], [0], [(- *) + (0 0) = 1], [70],
+[1.3: syntax error, unexpected '*', expecting "number" or '-' or '(' or '!'
+1.11: syntax error, unexpected "number"
+calc: error: 2222 != 1])
AT_BISON_OPTION_POPDEFS
AT_CLEANUP
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}])
# ----------------------- #
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}])
# ----------------------------- #
# 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],
[AT_CHECK_CALC([%skeleton "lalr1.cc"] $@)])
AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %locations %defines %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_LALR1_CC([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
projects / bison.git / blobdiff