# Simple calculator. -*- Autotest -*-
-# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software
-# Foundation, Inc.
+# Copyright (C) 2000-2012 Free Software Foundation, Inc.
-# 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, 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/>.
## ---------------------------------------------------- ##
## Compile the grammar described in the documentation. ##
# _AT_DATA_CALC_Y($1, $2, $3, [BISON-DIRECTIVES])
# -----------------------------------------------
-# Produce `calc.y'. Don't call this macro directly, because it contains
-# some occurrences of `$1' etc. which will be interpreted by m4. So
-# you should call it with $1, $2, and $3 as arguments, which is what
-# AT_DATA_CALC_Y does.
+# Produce `calc.y' and, if %defines was specified, `calc-lex.c' or
+# `calc-lex.cc'.
+#
+# Don't call this macro directly, because it contains some occurrences
+# of `$1' etc. which will be interpreted by m4. So you should call it
+# with $1, $2, and $3 as arguments, which is what AT_DATA_CALC_Y does.
+#
+# When %defines is not passed, generate a single self-contained file.
+# Otherwise, generate three: calc.y with the parser, calc-lex.c with
+# the scanner, and calc-main.c with "main()". This is in order to
+# stress the use of the generated parser header. To avoid code
+# duplication, AT_CALC_LEX and AT_CALC_MAIN contain the body of these
+# two later files.
m4_define([_AT_DATA_CALC_Y],
[m4_if([$1$2$3], $[1]$[2]$[3], [],
[m4_fatal([$0: Invalid arguments: $@])])dnl
-AT_DATA_GRAMMAR([calc.y],
-[[/* Infix notation calculator--calc */
-]$4[
-%{
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+m4_pushdef([AT_CALC_MAIN],
+[#include <stdlib.h> /* abort */
#if HAVE_UNISTD_H
# include <unistd.h>
#else
# undef alarm
# define alarm(seconds) /* empty */
#endif
-#include <ctype.h>
-
-/* Exercise pre-prologue dependency to %union. */
-typedef int semantic_value;
-
-static semantic_value global_result = 0;
-static int global_count = 0;
-%}
-/* Exercise %union. */
-%union
+AT_SKEL_CC_IF([[
+/* A C++ ]AT_NAME_PREFIX[parse that simulates the C signature. */
+int
+]AT_NAME_PREFIX[parse (]AT_PARAM_IF([semantic_value *result, int *count]))[
{
- semantic_value ival;
-};
-
-%{
-static int power (int base, int exponent);
-]AT_LALR1_CC_IF([typedef yy::location YYLTYPE;],
-[/* yyerror receives the location if:
- - %location & %pure & %glr
- - %location & %pure & %yacc & %parse-param. */
-static void yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *yylloc, ])
- AT_PARAM_IF([semantic_value *result, int *count, ])
- const char *s
- );])[
-static int yylex (]AT_LEX_FORMALS[);
-static int yygetc (]AT_LEX_FORMALS[);
-static void yyungetc (]AT_LEX_PRE_FORMALS[ int c);
-%}
+ ]AT_NAME_PREFIX[::parser parser]AT_PARAM_IF([ (result, count)])[;
+#if YYDEBUG
+ parser.set_debug_level (1);
+#endif
+ return parser.parse ();
+}
+]])[
-/* Bison Declarations */
-%token CALC_EOF 0 "end of input"
-%token <ival> NUM "number"
-%type <ival> exp
+semantic_value global_result = 0;
+int global_count = 0;
-%nonassoc '=' /* comparison */
-%left '-' '+'
-%left '*' '/'
-%left NEG /* negation--unary minus */
-%right '^' /* exponentiation */
+/* A C main function. */
+int
+main (int argc, const char **argv)
+{
+ semantic_value result = 0;
+ int count = 0;
+ int status;
-/* Grammar follows */
-%%
-input:
- line
-| input line { ]AT_PARAM_IF([++*count; ++global_count;])[ }
-;
+ /* 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);
-line:
- '\n'
-| exp '\n' { ]AT_PARAM_IF([*result = global_result = $1;])[ }
-;
+ if (argc == 2)
+ input = fopen (argv[1], "r");
+ else
+ input = stdin;
-exp:
- NUM { $$ = $1; }
-| exp '=' exp
- {
- if ($1 != $3)
- fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
- $$ = $1;
- }
-| exp '+' exp { $$ = $1 + $3; }
-| exp '-' exp { $$ = $1 - $3; }
-| exp '*' exp { $$ = $1 * $3; }
-| exp '/' exp { $$ = $1 / $3; }
-| '-' exp %prec NEG { $$ = -$2; }
-| exp '^' exp { $$ = power ($1, $3); }
-| '(' exp ')' { $$ = $2; }
-| '(' error ')' { $$ = 1111; }
-| '!' { YYERROR; }
-| '-' error { YYERROR; }
-;
-%%
-/* The input. */
-static FILE *yyin;
+ if (!input)
+ {
+ perror (argv[1]);
+ return 3;
+ }
-]AT_LALR1_CC_IF(
-[/* A C++ error reporting function. */
-void
-yy::parser::error (const location& l, const std::string& m)
-{
- (void) l;
- std::cerr << AT_LOCATION_IF([l << ": " << ])m << std::endl;
+]AT_SKEL_CC_IF([], [m4_bmatch([$4], [%debug],
+[ ]AT_NAME_PREFIX[debug = 1;])])[
+ status = ]AT_NAME_PREFIX[parse (]AT_PARAM_IF([[&result, &count]])[);
+ if (fclose (input))
+ perror ("fclose");
+ if (global_result != result)
+ abort ();
+ if (global_count != count)
+ abort ();
+ return status;
}
+]])
-int
-yyparse (AT_PARAM_IF([semantic_value *result, int *count]))
-{
- yy::parser parser[]AT_PARAM_IF([ (result, count)]);
- parser.set_debug_level (!!YYDEBUG);
- return parser.parse ();
-}
-],
-[static void
-yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *yylloc, ])
- AT_PARAM_IF([semantic_value *result, int *count, ])
- const char *s)
-{
-AT_PARAM_IF([(void) result; (void) count;])
-AT_YYERROR_SEES_LOC_IF([
- fprintf (stderr, "%d.%d",
- AT_LOC.first_line, AT_LOC.first_column);
- if (AT_LOC.first_line != AT_LOC.last_line)
- fprintf (stderr, "-%d.%d",
- AT_LOC.last_line, AT_LOC.last_column - 1);
- else if (AT_LOC.first_column != AT_LOC.last_column - 1)
- fprintf (stderr, "-%d",
- AT_LOC.last_column - 1);
- fprintf (stderr, ": ");])
- fprintf (stderr, "%s\n", s);
-}])[
+m4_pushdef([AT_CALC_LEX],
+[[#include <ctype.h>
+
+int ]AT_NAME_PREFIX[lex (]AT_LEX_FORMALS[);
+static int get_char (]AT_LEX_FORMALS[);
+static void unget_char (]AT_LEX_PRE_FORMALS[ int c);
]AT_LOCATION_IF([
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_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 = 1;
}
else
-AT_LALR1_CC_IF(
-[ AT_LOC.end.column++;],
-[ AT_LOC.last_column++;])
+ AT_LOC_LAST_COLUMN++;
])[
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;
])[
- ungetc (c, yyin);
+ ungetc (c, input);
}
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 == '-')
{
- c = yygetc (]AT_LEX_ARGS[);
+ c = get_char (]AT_LEX_ARGS[);
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;
}
-
/*---------------------------------------------------------------.
| Lexical analyzer returns an integer on the stack and the token |
| NUM, or the ASCII character read if not a number. Skips all |
| blanks and tabs, returns 0 for EOF. |
`---------------------------------------------------------------*/
-static int
-yylex (]AT_LEX_FORMALS[)
+int
+]AT_NAME_PREFIX[lex (]AT_LEX_FORMALS[)
{
static int init = 1;
int c;
if (init)
{
init = 0;
-]AT_LALR1_CC_IF([],
-[AT_LOCATION_IF([
- AT_LOC.last_column = 0;
- AT_LOC.last_line = 1;
-])])[
+]AT_LOCATION_IF([
+ AT_LOC_LAST_COLUMN = 1;
+ 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_LOC.first_line = AT_LOC.last_line;
-])])[
-
- /* Skip white space. */
- while ((c = yygetc (]AT_LEX_ARGS[)) == ' ' || c == '\t')
+ /* Skip current token, then white spaces. */
+ do
{
-]AT_LOCATION_IF([AT_LALR1_CC_IF(
-[ AT_LOC.begin = AT_LOC.end;],
-[ AT_LOC.first_column = AT_LOC.last_column;
- AT_LOC.first_line = AT_LOC.last_line;
-])])[
+]AT_LOCATION_IF(
+[ AT_LOC_FIRST_COLUMN = AT_LOC_LAST_COLUMN;
+ AT_LOC_FIRST_LINE = AT_LOC_LAST_LINE;
+])[
}
+ while ((c = get_char (]AT_LEX_ARGS[)) == ' ' || c == '\t');
/* 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;
}
/* Return single chars. */
return c;
}
+]])
+
+AT_DATA_GRAMMAR([calc.y],
+[[/* Infix notation calculator--calc */
+]$4
+AT_SKEL_CC_IF(
+[%define global_tokens_and_yystype])[
+%code requires
+{
+]AT_LOCATION_TYPE_IF([[
+# include <iostream>
+ struct Point
+ {
+ int l;
+ int c;
+ };
+
+ struct Span
+ {
+ Point first;
+ Point last;
+ };
+
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do \
+ if (N) \
+ { \
+ (Current).first = YYRHSLOC (Rhs, 1).first; \
+ (Current).last = YYRHSLOC (Rhs, N).last; \
+ } \
+ else \
+ { \
+ (Current).first = (Current).last = YYRHSLOC (Rhs, 0).last; \
+ } \
+ while (false)
+
+]])[
+ /* Exercise pre-prologue dependency to %union. */
+ typedef int semantic_value;
+}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%code provides
+{
+#include <stdio.h>
+/* The input. */
+extern FILE *input;
+extern semantic_value global_result;
+extern int global_count;]AT_SKEL_CC_IF([[
+#ifndef YYLTYPE
+# define YYLTYPE ]AT_NAME_PREFIX[::parser::location_type
+#endif
+]])[
+}
+
+%code
+{
+#include <assert.h>
+#include <string.h>
+#define USE(Var)
+
+FILE *input;
+static int power (int base, int exponent);
+
+]AT_SKEL_CC_IF(,
+[/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])
+ AT_PARAM_IF([semantic_value *result, int *count, ])
+ const char *s
+ );])[
+int yylex (]AT_LEX_FORMALS[);
+}
+
+]AT_SKEL_CC_IF([AT_LOCATION_TYPE_IF([], [
+/* The lalr1.cc skeleton, for backward compatibility, defines
+ a constructor for position that initializes the filename. The
+ glr.cc skeleton does not (and in fact cannot: location/position
+ are stored in a union, from which objects with constructors are
+ excluded in C++. */
+%initial-action {
+ @$.initialize ();
+}
+])])[
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%left NEG /* negation--unary minus */
+%right '^' /* exponentiation */
+
+/* Grammar follows */
+%%
+input:
+ line
+| input line { ]AT_PARAM_IF([++*count; ++global_count;])[ }
+;
+
+line:
+ '\n'
+| exp '\n' { ]AT_PARAM_IF([*result = global_result = $1], [USE ($1)])[; }
+;
+
+exp:
+ NUM { $$ = $1; }
+| exp '=' exp
+ {
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
+ }
+| exp '+' exp { $$ = $1 + $3; }
+| exp '-' exp { $$ = $1 - $3; }
+| exp '*' exp { $$ = $1 * $3; }
+| exp '/' exp { $$ = $1 / $3; }
+| '-' exp %prec NEG { $$ = -$2; }
+| exp '^' exp { $$ = power ($1, $3); }
+| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; yyerrok; }
+| '!' { $$ = 0; YYERROR; }
+| '-' error { $$ = 0; YYERROR; }
+;
+%%
static int
power (int base, int exponent)
{
int res = 1;
- if (exponent < 0)
- exit (1);
+ assert (0 <= exponent);
for (/* Niente */; exponent; --exponent)
res *= base;
return res;
}
+]AT_SKEL_CC_IF(
+[AT_LOCATION_TYPE_IF([[
+ std::ostream&
+ operator<< (std::ostream& o, const Span& s)
+ {
+ o << s.first.l << '.' << s.first.c;
+ if (s.first.l != s.last.l)
+ o << '-' << s.last.l << '.' << s.last.c - 1;
+ else if (s.first.c != s.last.c - 1)
+ o << '-' << s.last.c - 1;
+ return o;
+ }
+]])
-int
-main (int argc, const char **argv)
+/* A C++ error reporting function. */
+void
+AT_NAME_PREFIX::parser::error (const location_type& l, const std::string& m)
{
- semantic_value result = 0;
- int count = 0;
- int status;
+ (void) l;
+ std::cerr << AT_LOCATION_IF([l << ": " << ])m << std::endl;
+}
+],
+[/* A C error reporting function. */
+static void
+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;])
+AT_YYERROR_SEES_LOC_IF([
+ fprintf (stderr, "%d.%d",
+ AT_LOC_FIRST_LINE, AT_LOC_FIRST_COLUMN);
+ if (AT_LOC_FIRST_LINE != AT_LOC_LAST_LINE)
+ fprintf (stderr, "-%d.%d",
+ AT_LOC_LAST_LINE, AT_LOC_LAST_COLUMN - 1);
+ else if (AT_LOC_FIRST_COLUMN != AT_LOC_LAST_COLUMN - 1)
+ fprintf (stderr, "-%d",
+ AT_LOC_LAST_COLUMN - 1);
+ fprintf (stderr, ": ");])
+ fprintf (stderr, "%s\n", s);
+}])[
- /* 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);
+]AT_DEFINES_IF([],
+[AT_CALC_LEX
+AT_CALC_MAIN])[
+]])
- if (argc == 2)
- yyin = fopen (argv[1], "r");
- else
- yyin = stdin;
+AT_DEFINES_IF([AT_DATA_SOURCE([[calc-lex.c]AT_SKEL_CC_IF([[c]])],
+[[#include "calc.h]AT_SKEL_CC_IF([[h]])["
- if (!yyin)
- {
- perror (argv[1]);
- exit (1);
- }
+]AT_CALC_LEX])
+AT_DATA_SOURCE([[calc-main.c]AT_SKEL_CC_IF([[c]])],
+[[#include "calc.h]AT_SKEL_CC_IF([[h]])["
-]AT_LALR1_CC_IF([], [m4_bmatch([$4], [%debug],
-[ yydebug = 1;])])[
- status = yyparse (]AT_PARAM_IF([&result, &count])[);
- if (global_result != result)
- abort ();
- if (global_count != count)
- abort ();
- return status;
-}
-]])
+]AT_CALC_MAIN])
+])
+m4_popdef([AT_CALC_MAIN])
+m4_popdef([AT_CALC_LEX])
])# _AT_DATA_CALC_Y
# AT_DATA_CALC_Y([BISON-OPTIONS])
# -------------------------------
-# Produce `calc.y'.
+# Produce `calc.y' and, if %defines was specified, `calc-lex.c' or
+# `calc-lex.cc'.
m4_define([AT_DATA_CALC_Y],
[_AT_DATA_CALC_Y($[1], $[2], $[3], [$1])
])
-# _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
+#
# 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.
[[$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,
-# [NUM-DEBUG-LINES],
+# [NUM-STDERR-LINES],
# [VERBOSE-AND-LOCATED-ERROR-MESSAGE])
# ---------------------------------------------------------
# Run `calc' on INPUT, and expect a `syntax error' message.
# 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.
#
[[$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, [$4
-])])
# Normalize the observed and expected error messages, depending upon the
# options.
/^Stack/d
/^Reading/d
/^Reducing/d
+/^Return/d
/^Shifting/d
/^state/d
+/^Cleanup:/d
/^Error:/d
/^Next/d
+/^Now/d
/^Discarding/d
+/ \$[[0-9$]]* = /d
/^yydestructor:/d' stderr >at-stderr
mv at-stderr stderr
# 2. Create the reference error message.
])
-# AT_CHECK_CALC([BISON-OPTIONS [, EXPECTED-TO-FAIL]])
+# AT_CHECK_CALC([BISON-OPTIONS])
# ------------------------------
# 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], [m4_fatal([$0: expected a single argument])])
-m4_ifval([$2], [AT_CHECK([exit 77])])
+# We use integers to avoid dependencies upon the precision of doubles.
+AT_SETUP([Calculator $1])
AT_BISON_OPTION_PUSHDEFS([$1])
AT_DATA_CALC_Y([$1])
-
-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])])
+AT_FULL_COMPILE([calc], AT_DEFINES_IF([[lex], [main]]))
# Test the priorities.
_AT_CHECK_CALC([$1],
2^2^3 = 256
(2^2)^3 = 64],
- [570])
+ [842])
# Some syntax errors.
-_AT_CHECK_CALC_ERROR([$1], [1], [0 0], [13],
- [1.2: syntax error, unexpected number])
-_AT_CHECK_CALC_ERROR([$1], [1], [1//2], [18],
- [1.2: syntax error, unexpected '/', expecting number or '-' or '(' or '!'])
+_AT_CHECK_CALC_ERROR([$1], [1], [0 0], [15],
+ [1.3: syntax error, unexpected number])
+_AT_CHECK_CALC_ERROR([$1], [1], [1//2], [20],
+ [1.3: syntax error, unexpected '/', expecting number or '-' or '(' or '!'])
_AT_CHECK_CALC_ERROR([$1], [1], [error], [5],
- [1.0: syntax error, unexpected $undefined])
-_AT_CHECK_CALC_ERROR([$1], [1], [1 = 2 = 3], [26],
- [1.6: syntax error, unexpected '='])
+ [1.1: syntax error, unexpected $undefined])
+_AT_CHECK_CALC_ERROR([$1], [1], [1 = 2 = 3], [30],
+ [1.7: syntax error, unexpected '='])
_AT_CHECK_CALC_ERROR([$1], [1],
[
+1],
- [16],
- [2.0: syntax error, unexpected '+'])
+ [20],
+ [2.1: 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])
+ [1.1: syntax error, unexpected end of input])
# Exercise the error token: without it, we die at the first error,
# hence be sure to
#
# - test the action associated to `error'
#
-# - check the look-ahead that triggers an error is not discarded
-# when we enter error recovery. Below, the look-ahead causing the
+# - check the lookahead that triggers an error is not discarded
+# when we enter error recovery. Below, the lookahead 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],
- [188],
-[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],
+[1.2: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.18: syntax error, unexpected ')', expecting number or '-' or '(' or '!'
+1.23: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.41: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
calc: error: 4444 != 1])
# The same, but this time exercising explicitly triggered syntax errors.
-# POSIX says the look-ahead causing the error should not be discarded.
-_AT_CHECK_CALC_ERROR([$1], [0], [(!) + (0 0) = 1], [75],
-[1.9: syntax error, unexpected number
+# POSIX says the lookahead causing the error should not be discarded.
+_AT_CHECK_CALC_ERROR([$1], [0], [(!) + (0 0) = 1], [102],
+[1.10: syntax error, unexpected number
calc: error: 2222 != 1])
-_AT_CHECK_CALC_ERROR([$1], [0], [(- *) + (0 0) = 1], [85],
-[1.3: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
-1.11: syntax error, unexpected number
+_AT_CHECK_CALC_ERROR([$1], [0], [(- *) + (0 0) = 1], [113],
+[1.4: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.12: syntax error, unexpected number
calc: error: 2222 != 1])
+
+# Check that yyerrok works properly: second error is not reported,
+# third and fourth are. Parse status is succesfull.
+_AT_CHECK_CALC_ERROR([$1], [0], [(* *) + (*) + (*)], [113],
+[1.2: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.10: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.16: syntax error, unexpected '*', expecting number or '-' or '(' or '!'])
+
AT_BISON_OPTION_POPDEFS
AT_CLEANUP
# Simple LALR Calculator. #
# ------------------------ #
-AT_BANNER([[Simple LALR Calculator.]])
+AT_BANNER([[Simple LALR(1) Calculator.]])
# AT_CHECK_CALC_LALR([BISON-OPTIONS])
# -----------------------------------
AT_CHECK_CALC_LALR([%defines])
AT_CHECK_CALC_LALR([%locations])
-AT_CHECK_CALC_LALR([%name-prefix="calc"])
+
+AT_CHECK_CALC_LALR([%name-prefix="calc"]) dnl test deprecated `='
AT_CHECK_CALC_LALR([%verbose])
AT_CHECK_CALC_LALR([%yacc])
AT_CHECK_CALC_LALR([%error-verbose])
-AT_CHECK_CALC_LALR([%pure-parser %locations])
+AT_CHECK_CALC_LALR([%define api.pure %locations])
+AT_CHECK_CALC_LALR([%define api.push-pull both %define api.pure %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 %defines %name-prefix "calc" %verbose %yacc])
AT_CHECK_CALC_LALR([%debug])
-AT_CHECK_CALC_LALR([%error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
+AT_CHECK_CALC_LALR([%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([%define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc])
+AT_CHECK_CALC_LALR([%define api.push-pull both %define api.pure %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 {semantic_value *result} %parse-param {int *count}])
+AT_CHECK_CALC_LALR([%define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
# ----------------------- #
AT_CHECK_CALC_GLR([%defines])
AT_CHECK_CALC_GLR([%locations])
-AT_CHECK_CALC_GLR([%name-prefix="calc"])
+AT_CHECK_CALC_GLR([%name-prefix "calc"])
AT_CHECK_CALC_GLR([%verbose])
AT_CHECK_CALC_GLR([%yacc])
AT_CHECK_CALC_GLR([%error-verbose])
-AT_CHECK_CALC_GLR([%pure-parser %locations])
+AT_CHECK_CALC_GLR([%define api.pure %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 %defines %name-prefix "calc" %verbose %yacc])
AT_CHECK_CALC_GLR([%debug])
-AT_CHECK_CALC_GLR([%error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
+AT_CHECK_CALC_GLR([%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([%define api.pure %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 {semantic_value *result} %parse-param {int *count}])
+AT_CHECK_CALC_GLR([%define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
# ----------------------------- #
# Simple LALR1 C++ Calculator. #
# ----------------------------- #
-AT_BANNER([[Simple LALR1 C++ Calculator.]])
+AT_BANNER([[Simple LALR(1) C++ Calculator.]])
+
+# First let's try using %skeleton
+AT_CHECK_CALC([%skeleton "lalr1.cc" %defines %locations])
# AT_CHECK_CALC_LALR1_CC([BISON-OPTIONS])
# ---------------------------------------
# Start a testing chunk which compiles `calc' grammar with
# 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([%language "C++" %defines %locations] $@)])
+
+AT_CHECK_CALC_LALR1_CC([])
+AT_CHECK_CALC_LALR1_CC([%define location_type Span])
+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([%pure-parser %error-verbose %debug %name-prefix "calc" %verbose %yacc])
+
+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()
-AT_CHECK_CALC_LALR1_CC([%defines %locations])
-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])
+# --------------------------- #
+# Simple GLR C++ Calculator. #
+# --------------------------- #
-# AT_CHECK_CALC_LALR1_CC([%pure-parser %locations])
-# AT_CHECK_CALC_LALR1_CC([%error-verbose %locations])
+AT_BANNER([[Simple GLR C++ Calculator.]])
+
+# Again, we try also using %skeleton.
+AT_CHECK_CALC([%skeleton "glr.cc" %defines %locations])
+
+# 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([%language "C++" %glr-parser %defines %locations] $@)])
-AT_CHECK_CALC_LALR1_CC([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc])
+AT_CHECK_CALC_GLR_CC([])
+AT_CHECK_CALC_GLR_CC([%define location_type Span])
+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 {semantic_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}])
projects / bison.git / blobdiff