# Simple calculator. -*- Autotest -*-
-# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
-# Foundation, Inc.
+# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 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.
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 */
-]$4
-AT_SKEL_CC_IF(
-[%define "global_tokens_and_yystype"])[
-%{
-#include <stdio.h>
-
-#include <stdlib.h>
-#include <string.h>
-#if HAVE_UNISTD_H
-# include <unistd.h>
-#else
-# undef alarm
-# define alarm(seconds) /* empty */
-#endif
-#include <ctype.h>
-#define USE(Var)
-
-/* Exercise pre-prologue dependency to %union. */
-typedef int semantic_value;
-
-static semantic_value global_result = 0;
-static int global_count = 0;
-%}
+m4_pushdef([AT_CALC_LEX],
+[[#include <ctype.h>
-/* Exercise %union. */
-%union
-{
- semantic_value ival;
-};
-
-%{
-static int power (int base, int exponent);
-]AT_SKEL_CC_IF(
-[#ifndef YYLTYPE
-[#] define YYLTYPE AT_NAME_PREFIX::location
-#endif
-#define first_line begin.line
-#define first_column begin.column
-#define last_line end.line
-#define last_column end.column
-],
-[/* yyerror receives the location if:
- - %location & %pure & %glr
- - %location & %pure & %yacc & %parse-param. */
-static void yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])
- AT_PARAM_IF([semantic_value *result, int *count, ])
- const char *s
- );])[
-static int yylex (]AT_LEX_FORMALS[);
+int ]AT_NAME_PREFIX[lex (]AT_LEX_FORMALS[);
static int get_char (]AT_LEX_FORMALS[);
static void unget_char (]AT_LEX_PRE_FORMALS[ int c);
-%}
-
-]AT_SKEL_CC_IF(
-[/* The lalr1.cc skeleton, for backward compatibility, defines
- a constructor for position that initializes the filename. The
- glr.cc skeleton does not (and in fact cannot: location/position
- are stored in a union, from which objects with constructors are
- excluded in C++. */
-%initial-action {
- @$.initialize (0);
-}
-])[
-
-/* Bison Declarations */
-%token CALC_EOF 0 "end of input"
-%token <ival> NUM "number"
-%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; }
-| '!' { $$ = 0; YYERROR; }
-| '-' error { $$ = 0; YYERROR; }
-;
-%%
-/* The input. */
-static FILE *input;
-
-]AT_SKEL_CC_IF(
-[/* A C++ error reporting function. */
-void
-AT_NAME_PREFIX::parser::error (const location& l, const std::string& m)
-{
- (void) l;
- std::cerr << AT_LOCATION_IF([l << ": " << ])m << std::endl;
-}
-
-int
-yyparse (AT_PARAM_IF([semantic_value *result, int *count]))
-{
- AT_NAME_PREFIX::parser parser[]AT_PARAM_IF([ (result, count)]);
-#if YYDEBUG
- parser.set_debug_level (1);
-#endif
- return parser.parse ();
-}
-],
-[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);
-}])[
-
]AT_LOCATION_IF([
static YYLTYPE last_yylloc;
return res;
}
-
static void
unget_char (]AT_LEX_PRE_FORMALS[ int c)
{
}
-
/*---------------------------------------------------------------.
| 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;
/* Return single chars. */
return c;
}
+]])
+
+AT_DATA_GRAMMAR([calc.y],
+[[/* Infix notation calculator--calc */
+]$4
+AT_SKEL_CC_IF(
+[%define global_tokens_and_yystype])[
+%code requires {
+/* Exercise pre-prologue dependency to %union. */
+typedef int semantic_value;
+}
+
+/* Exercise %union. */
+%union
+{
+ semantic_value ival;
+};
+
+%code provides {
+#include <stdio.h>
+/* The input. */
+extern FILE *input;]AT_SKEL_CC_IF([[
+#ifndef YYLTYPE
+# define YYLTYPE ]AT_NAME_PREFIX[::location
+#endif
+#define first_line begin.line
+#define first_column begin.column
+#define last_line end.line
+#define last_column end.column]])[
+}
+
+%code {
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else
+# undef alarm
+# define alarm(seconds) /* empty */
+#endif
+#define USE(Var)
+
+FILE *input;
+static semantic_value global_result = 0;
+static int global_count = 0;
+static int power (int base, int exponent);
+]AT_SKEL_CC_IF(,
+[/* yyerror receives the location if:
+ - %location & %pure & %glr
+ - %location & %pure & %yacc & %parse-param. */
+static void yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])
+ AT_PARAM_IF([semantic_value *result, int *count, ])
+ const char *s
+ );])[
+int yylex (]AT_LEX_FORMALS[);
+}
+
+]AT_SKEL_CC_IF([AT_LOCATION_IF([
+/* The lalr1.cc skeleton, for backward compatibility, defines
+ a constructor for position that initializes the filename. The
+ glr.cc skeleton does not (and in fact cannot: location/position
+ are stored in a union, from which objects with constructors are
+ excluded in C++). */
+%initial-action {
+ @$.initialize (0);
+}
+])])[
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
+
+%nonassoc '=' /* comparison */
+%left '-' '+'
+%left '*' '/'
+%precedence 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; }
+;
+%%
+
+]AT_SKEL_CC_IF(
+[/* A C++ error reporting function. */
+void
+AT_NAME_PREFIX::parser::error (AT_LOCATION_IF([const location& l, ])const std::string& m)
+{
+ std::cerr << AT_LOCATION_IF([l << ": " << ])m << std::endl;
+}
+
+int
+yyparse (AT_PARAM_IF([semantic_value *result, int *count]))
+{
+ AT_NAME_PREFIX::parser parser[]AT_PARAM_IF([ (result, count)]);
+#if YYDEBUG
+ parser.set_debug_level (1);
+#endif
+ return parser.parse ();
+}
+],
+[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);
+}])[
+
+]AT_DEFINES_IF(, [AT_CALC_LEX])[
static int
power (int base, int exponent)
]AT_SKEL_CC_IF([], [m4_bmatch([$4], [%debug],
[ yydebug = 1;])])[
-]AT_PUSH_IF([
- {
- yypstate *pstate = yypstate_new ();
- YYSTYPE my_lval;
- ]AT_LOCATION_IF([YYLTYPE my_lloc;])[
- do {
- status = yypush_parse (pstate, yylex (&my_lval]AT_LOCATION_IF([[, &my_lloc]])[), &my_lval]AT_LOCATION_IF([[, &my_lloc]])[);
- } while (status == YYPUSH_MORE);
- yypstate_delete (pstate);
- }],[
- status = yyparse (]AT_PARAM_IF([[&result, &count]])[);])[
+ status = yyparse (]AT_PARAM_IF([[&result, &count]])[);
fclose (input);
if (global_result != result)
abort ();
return status;
}
]])
+AT_DEFINES_IF([AT_DATA_SOURCE([[calc-lex.c]AT_SKEL_CC_IF([[c]])],
+[[#include "calc.h]AT_SKEL_CC_IF([[h]])["
+
+]AT_CALC_LEX])])
+m4_popdef([AT_CALC_LEX])
])# _AT_DATA_CALC_Y
# AT_DATA_CALC_Y([BISON-OPTIONS])
# -------------------------------
-# Produce `calc.y'.
+# Produce `calc.y' and, if %defines was specified, `calc-lex.c' or
+# `calc-lex.cc'.
m4_define([AT_DATA_CALC_Y],
[_AT_DATA_CALC_Y($[1], $[2], $[3], [$1])
])
AT_BISON_OPTION_PUSHDEFS([$1])
AT_DATA_CALC_Y([$1])
-
-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])])
+AT_FULL_COMPILE([calc], [AT_DEFINES_IF([[lex]])])
# Test the priorities.
_AT_CHECK_CALC([$1],
[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
AT_CHECK_CALC_LALR([%yacc])
AT_CHECK_CALC_LALR([%error-verbose])
-AT_CHECK_CALC_LALR([%pure-parser %locations])
-AT_CHECK_CALC_LALR([%push-parser %locations %skeleton "push.c"])
+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([%debug])
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([%push-parser %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc %skeleton "push.c"])
+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([%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([%debug])
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}])
# ----------------------------- #
# 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([%language "C++" %defines %locations] $@)])
+[AT_CHECK_CALC([%language "C++" %defines] $@)])
AT_CHECK_CALC_LALR1_CC([])
-AT_CHECK_CALC_LALR1_CC([%error-verbose %name-prefix "calc" %verbose %yacc])
+AT_CHECK_CALC_LALR1_CC([%locations])
+AT_CHECK_CALC_LALR1_CC([%locations %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([%locations %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([%locations %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([%locations %pure-parser %error-verbose %debug %name-prefix "calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
projects / bison.git / blobdiff