-# -*- Autoconf -*-
+# Checking the output filenames. -*- Autotest -*-
+# Copyright 2000, 2001 Free Software Foundation, Inc.
-cat <<EOF
+# 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.
-Simple Calculator.
+# 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.
-EOF
+# 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.
+AT_BANNER([[Simple Calculator.]])
## ---------------------------------------------------- ##
## Compile the grammar described in the documentation. ##
# 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.
-AT_DEFINE([_AT_DATA_CALC_Y],
-[ifelse([$1$2$3],
- $[1]$[2]$[3], [],
- [errprint([$0: Invalid arguments: $@
-])m4exit(1)])dnl
+m4_define([_AT_DATA_CALC_Y],
+[m4_if([$1$2$3], $[1]$[2]$[3], [],
+ [m4_fatal([$0: Invalid arguments: $@])])dnl
AT_DATA([calc.y],
[[/* Infix notation calculator--calc */
%{
#include <config.h>
+/* We don't need a perfect malloc for these tests. */
+#undef malloc
#include <stdio.h>
#if STDC_HEADERS
char *strcat(char *dest, const char *src);
#endif
#include <ctype.h>
-]$4[
static int power (int base, int exponent);
static void yyerror (const char *s);
extern void perror (const char *s);
%}
-/* BISON Declarations */
+/* Bison Declarations */
+%token CALC_EOF 0
%token NUM
%nonassoc '=' /* comparison */
%left NEG /* negation--unary minus */
%right '^' /* exponentiation */
+]$4[
+
/* Grammar follows */
%%
input:
/* Return end-of-file. */
if (c == EOF)
- return 0;
+ return CALC_EOF;
/* Return single chars. */
return c;
}
int
-main (int argn, const char **argv)
+main (int argc, const char **argv)
{
- if (argn == 2)
+ yyin = NULL;
+
+ if (argc == 2)
yyin = fopen (argv[1], "r");
else
yyin = stdin;
- if (!stdin)
+ if (!yyin)
{
perror (argv[1]);
exit (1);
# AT_DATA_CALC_Y([BISON-OPTIONS])
# -------------------------------
# Produce `calc.y'.
-AT_DEFINE([AT_DATA_CALC_Y],
+m4_define([AT_DATA_CALC_Y],
[_AT_DATA_CALC_Y($[1], $[2], $[3],
- [ifelse(regexp([$1], [--yyerror-verbose]),
- [-1], [],
- [[#define YYERROR_VERBOSE]])])])
+ [m4_bmatch([$1], [--yyerror-verbose],
+ [[%error-verbose]])])])
-# _AT_CHECK_CALC(BISON-OPTIONS, INPUT)
-# ------------------------------------
+# _AT_CHECK_CALC(BISON-OPTIONS, INPUT, [NUM-STDERR-LINES = 0])
+# ------------------------------------------------------------
# Run `calc' on INPUT and expect no STDOUT nor STDERR.
-# If `--debug' is passed to bison, discard all the debugging traces
-# preserving only the `parse errors'. Note that since there should be
-# none, the `grep' will fail with exit status 1.
-AT_DEFINE([_AT_CHECK_CALC],
-[ifelse(regexp([$1], [--debug]),
- [-1],
- [AT_CHECK([echo "$2" | calc],
- [0], [], [])],
- [AT_CHECK([echo "$2" | calc 2>&1 >/dev/null | grep 'parse error' >&2],
- [1], [], [])])])
-
-
-# _AT_CHECK_CALC_ERROR(BISON-OPTIONS, INPUT,
+#
+# If BISON-OPTIONS contains `--debug', then NUM-STDERR-LINES is the number
+# of expected lines on stderr.
+m4_define([_AT_CHECK_CALC],
+[AT_DATA([[input]],
+[[$2
+]])
+AT_CHECK([calc input], 0, [], [stderr])dnl
+AT_CHECK([wc -l <stderr | sed 's/[[^0-9]]//g'], 0,
+ [m4_bmatch([$1], [--debug],
+ [$3], [0])
+])
+])
+
+
+# _AT_CHECK_CALC_ERROR(BISON-OPTIONS, INPUT, [NUM-DEBUG-LINES],
# [ERROR-LOCATION], [IF-YYERROR-VERBOSE])
# ------------------------------------------------------------
-# Run `calc' on INPUT, and expect STDERR.
-AT_DEFINE([_AT_CHECK_CALC_ERROR],
-[AT_CHECK([echo "$2" | calc 2>&1 >/dev/null | grep 'parse error' >&2], 0,
- [],
-[ifelse(regexp([$1], [--location]),
- [-1], [], [$3: ])[]dnl
+# Run `calc' on INPUT, and expect a `parse error' message.
+#
+# If BISON-OPTIONS contains `--location', then make sure the ERROR-LOCATION
+# is correctly output on stderr.
+#
+# If BISON-OPTIONS contains `--yyerror-verbose', then make sure the
+# IF-YYERROR-VERBOSE message is properly output after `parse error, '
+# on STDERR.
+#
+# If BISON-OPTIONS contains `--debug', then NUM-STDERR-LINES is the number
+# of expected lines on stderr.
+m4_define([_AT_CHECK_CALC_ERROR],
+[AT_DATA([[input]],
+[[$2
+]])
+
+AT_CHECK([calc input], 0, [], [stderr])
+
+
+AT_CHECK([wc -l <stderr | sed 's/[[^0-9]]//g'], 0,
+ [m4_bmatch([$1], [--debug],
+ [$3], [1])
+])
+
+egrep -v '^((Start|Enter|Read|Reduc|Shift)ing|state|Error:) ' stderr >at-stderr
+mv at-stderr stderr
+
+AT_CHECK([cat stderr], 0,
+[m4_bmatch([$1], [--location], [$4: ])[]dnl
parse error[]dnl
-ifelse(regexp([$1], [--yyerror-verbose]),
- [-1], [], [$4])[]dnl
+m4_bmatch([$1], [--yyerror-verbose], [, $5])[]dnl
-])])
+])
+
+])
# AT_CHECK_CALC([BISON-OPTIONS], [PARSER-EXPECTED-STDERR])
# --------------------------------------------------------
# Start a testing chunk which compiles `calc' grammar with
# BISON-OPTIONS, and performs several tests over the parser.
-AT_DEFINE([AT_CHECK_CALC],
+m4_define([AT_CHECK_CALC],
[# We use integers to avoid dependencies upon the precision of doubles.
AT_SETUP([Calculator $1])
AT_DATA_CALC_Y([$1])
# Specify the output files to avoid problems on different file systems.
-AT_CHECK([bison calc.y -o calc.c patsubst([$1], [--yyerror-verbose])],
+AT_CHECK([bison calc.y -o calc.c m4_bpatsubst([$1], [--yyerror-verbose])],
[0], [], [])
-AT_CHECK([$CC $CFLAGS $CPPFLAGS calc.c -o calc], 0, [], [])
+
+# Some compilers issue warnings we don't want to hear about.
+# Maybe some day we will have proper Autoconf macros to disable these
+# warnings, but this place is not the right one for that.
+# So let's keep only GCC warnings, which we know are sane.
+# Well, that's only part of the story: some assemblers issue warnings
+# which can be totally useless, and actually polluting. It seems that
+# the best bet be to completely ignore stderr, but to pass -Werror
+# to GCC.
+if test "$GCC" = yes; then
+ CFLAGS="$CFLAGS -Werror"
+fi
+AT_CHECK([$CC $CFLAGS $CPPFLAGS calc.c -o calc], 0, [], [ignore])
# Test the priorities.
_AT_CHECK_CALC([$1],
1 - (2 - 3) = 2
2^2^3 = 256
-(2^2)^3 = 64], [$2])
+(2^2)^3 = 64], [491])
# Some parse errors.
-_AT_CHECK_CALC_ERROR([$1], [+1],
+_AT_CHECK_CALC_ERROR([$1], [+1], [8],
[1.0:1.1],
- [, unexpected `'+''])
-_AT_CHECK_CALC_ERROR([$1], [1//2],
+ [unexpected '+'])
+_AT_CHECK_CALC_ERROR([$1], [1//2], [17],
[1.2:1.3],
- [, unexpected `'/'', expecting `NUM' or `'-'' or `'(''])
-_AT_CHECK_CALC_ERROR([$1], [error],
+ [unexpected '/', expecting NUM or '-' or '('])
+_AT_CHECK_CALC_ERROR([$1], [error], [8],
[1.0:1.1],
- [, unexpected `$undefined.'])
-_AT_CHECK_CALC_ERROR([$1], [1 = 2 = 3],
+ [unexpected $undefined.])
+_AT_CHECK_CALC_ERROR([$1], [1 = 2 = 3], [23],
[1.6:1.7],
- [, unexpected `'=''])
+ [unexpected '='])
_AT_CHECK_CALC_ERROR([$1],
[
+1],
+ [16],
[2.0:2.1],
- [, unexpected `'+''])
+ [unexpected '+'])
-AT_CLEANUP(calc calc.c calc.h calc.output)
+AT_CLEANUP
])# AT_CHECK_CALC
projects / bison.git / blobdiff