-# -*- Autoconf -*-
+# Checking the output filenames. -*- Autotest -*-
+# Copyright (C) 2000, 2001, 2002, 2003 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.
-
-EOF
+# 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., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
## ---------------------------------------------------- ##
## Compile the grammar described in the documentation. ##
# ------------------------- #
-# _AT_DATA_CALC_Y($1, $2, $3, [CPP-DIRECTIVES])
-# ---------------------------------------------
+# _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.
-AT_DEFINE([_AT_DATA_CALC_Y],
-[ifelse([$1$2$3],
- $[1]$[2]$[3], [],
- [errprint([$0: Invalid arguments: $@
-])m4exit(1)])dnl
-AT_DATA([calc.y],
+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 <config.h>
#include <stdio.h>
#if STDC_HEADERS
# include <stdlib.h>
# include <string.h>
-#else
-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);
-static int yylex (void);
-static int yygetc (void);
-static void yyungetc (int c);
extern void perror (const char *s);
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int value;
+
+static value global_result = 0;
+static int global_count = 0;
+
+]AT_LALR1_CC_IF([typedef yy::Location YYLTYPE;])[
%}
-/* BISON Declarations */
-%token NUM
+/* Exercise %union. */
+%union
+{
+ value ival;
+};
+
+%{
+static int power (int base, int exponent);
+]AT_LALR1_CC_IF([], [
+/* 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([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);
+%}
+
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
%nonassoc '=' /* comparison */
%left '-' '+'
/* Grammar follows */
%%
input:
- /* empty string */
-| input line
+ line
+| input line { ]AT_PARAM_IF([++*count; ++global_count;])[ }
;
line:
'\n'
-| exp '\n'
+| exp '\n' { ]AT_PARAM_IF([*result = global_result = $1;])[ }
;
exp:
NUM { $$ = $1; }
| exp '=' exp
{
- if ($1 != $3)
- printf ("calc: error: %d != %d\n", $1, $3);
- $$ = $1 == $3;
+ if ($1 != $3)
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
+ $$ = $1;
}
| exp '+' exp { $$ = $1 + $3; }
| exp '-' exp { $$ = $1 - $3; }
| '-' exp %prec NEG { $$ = -$2; }
| exp '^' exp { $$ = power ($1, $3); }
| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 1111; }
+| '!' { YYERROR; }
;
%%
/* The input. */
-FILE *yyin;
+static FILE *yyin;
-static void
-yyerror (const char *s)
+]AT_LALR1_CC_IF(
+[/* Currently, print_ is required in C++. */
+void
+yy::Parser::print_ ()
{
-#if YYLSP_NEEDED
- fprintf (stderr, "%d.%d:%d.%d: ",
- yylloc.first_line, yylloc.first_column,
- yylloc.last_line, yylloc.last_column);
-#endif
- fprintf (stderr, "%s\n", s);
+AT_LOCATION_IF([
+ std::cerr << location;])
+}
+
+/* A C++ error reporting function. */
+void
+yy::Parser::error_ ()
+{
+ std::cerr << AT_LOCATION_IF([location << ": " << ])message << std::endl;
}
+int
+yyparse (void)
+{
+ yy::Parser parser = yy::Parser (!!YYDEBUG[]AT_LOCATION_IF([,
+ yy::Location::Location ()]));
+ return parser.parse ();
+}
+],
+[static void
+yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *yylloc, ])
+ AT_PARAM_IF([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;
+])[
static int
-yygetc (void)
+yygetc (]AT_LEX_FORMALS[)
{
int res = getc (yyin);
-#if YYLSP_NEEDED
+ ]AT_USE_LEX_ARGS[;
+]AT_LOCATION_IF([
+ last_yylloc = AT_LOC;
if (res == '\n')
{
- yylloc.last_line++;
- yylloc.last_column = 0;
+AT_LALR1_CC_IF(
+[ AT_LOC.end.line++;
+ AT_LOC.end.column = 0;],
+[ AT_LOC.last_line++;
+ AT_LOC.last_column = 0;])
}
else
- yylloc.last_column++;
-#endif
+AT_LALR1_CC_IF(
+[ AT_LOC.end.column++;],
+[ AT_LOC.last_column++;])
+])[
return res;
}
static void
-yyungetc (int c)
+yyungetc (]AT_LEX_PRE_FORMALS[ int c)
{
-#if YYLSP_NEEDED
+ ]AT_USE_LEX_ARGS[;
+]AT_LOCATION_IF([
/* Wrong when C == `\n'. */
- yylloc.last_column--;
-#endif
+ AT_LOC = last_yylloc;
+])[
ungetc (c, yyin);
}
static int
-read_signed_integer (void)
+read_signed_integer (]AT_LEX_FORMALS[)
{
- int c = yygetc ();
+ int c = yygetc (]AT_LEX_ARGS[);
int sign = 1;
int n = 0;
+ ]AT_USE_LEX_ARGS[;
if (c == '-')
{
- c = yygetc ();
+ c = yygetc (]AT_LEX_ARGS[);
sign = -1;
}
while (isdigit (c))
{
n = 10 * n + (c - '0');
- c = yygetc ();
+ c = yygetc (]AT_LEX_ARGS[);
}
- yyungetc (c);
+ yyungetc (]AT_LEX_PRE_ARGS[ c);
return sign * n;
}
`---------------------------------------------------------------*/
static int
-yylex (void)
+yylex (]AT_LEX_FORMALS[)
{
+ static int init = 1;
int c;
-#if YYLSP_NEEDED
- yylloc.first_column = yylloc.last_column;
- yylloc.first_line = yylloc.last_line;
-#endif
+ 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_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 ()) == ' ' || c == '\t')
+ while ((c = yygetc (]AT_LEX_ARGS[)) == ' ' || c == '\t')
{
-#if YYLSP_NEEDED
- yylloc.first_column = yylloc.last_column;
- yylloc.first_line = yylloc.last_line;
-#endif
+]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;
+])])[
}
/* process numbers */
if (c == '.' || isdigit (c))
{
- yyungetc (c);
- yylval = read_signed_integer ();
+ yyungetc (]AT_LEX_PRE_ARGS[ c);
+ ]AT_VAL[.ival = read_signed_integer (]AT_LEX_ARGS[);
return NUM;
}
/* Return end-of-file. */
if (c == EOF)
- return 0;
+ return CALC_EOF;
/* Return single chars. */
return c;
return res;
}
+
int
-main (int argn, const char **argv)
+main (int argc, const char **argv)
{
- if (argn == 2)
+ value result = 0;
+ int count = 0;
+ int status;
+
+ if (argc == 2)
yyin = fopen (argv[1], "r");
else
yyin = stdin;
- if (!stdin)
+ if (!yyin)
{
perror (argv[1]);
exit (1);
}
-#if YYDEBUG
- yydebug = 1;
-#endif
-#if YYLSP_NEEDED
- yylloc.last_column = 0;
- yylloc.last_line = 1;
-#endif
- yyparse ();
- return 0;
+]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_DATA_CALC_Y
# AT_DATA_CALC_Y([BISON-OPTIONS])
# -------------------------------
# Produce `calc.y'.
-AT_DEFINE([AT_DATA_CALC_Y],
-[_AT_DATA_CALC_Y($[1], $[2], $[3],
- [ifelse(regexp([$1], [--yyerror-verbose]),
- [-1], [],
- [[#define YYERROR_VERBOSE]])])])
+m4_define([AT_DATA_CALC_Y],
+[_AT_DATA_CALC_Y($[1], $[2], $[3], [$1])
+])
-# _AT_CHECK_CALC(BISON-OPTIONS, INPUT)
-# ------------------------------------
-# 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,
-# [ERROR-LOCATION], [IF-YYERROR-VERBOSE])
+# _AT_CHECK_CALC(BISON-OPTIONS, INPUT, [NUM-STDERR-LINES = 0])
# ------------------------------------------------------------
-# 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
-parse error[]dnl
-ifelse(regexp([$1], [--yyerror-verbose]),
- [-1], [], [$4])[]dnl
-
+# 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.
+#
+# We don't count GLR's traces yet, since its traces are somewhat
+# different from LALR's.
+m4_define([_AT_CHECK_CALC],
+[AT_DATA([[input]],
+[[$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],
+# [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.
+#
+# If BISON-OPTIONS contains `%location', then make sure the ERROR-LOCATION
+# is correctly output on stderr.
+#
+# If BISON-OPTIONS contains `%error-verbose', then make sure the
+# IF-YYERROR-VERBOSE message is properly output after `syntax error, '
+# on STDERR.
+#
+# If BISON-OPTIONS contains `%debug' but not `%glr', then NUM-STDERR-LINES
+# is the number of expected lines on stderr.
+m4_define([_AT_CHECK_CALC_ERROR],
+[m4_bmatch([$3], [^/],
+ [AT_PARSER_CHECK([./calc $3], $2, [], [stderr])],
+ [AT_DATA([[input]],
+[[$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
])])
-
-# AT_CHECK_CALC([BISON-OPTIONS], [PARSER-EXPECTED-STDERR])
-# --------------------------------------------------------
+# Normalize the observed and expected error messages, depending upon the
+# options.
+# 1. Remove the traces from observed.
+sed '/^Starting/d
+/^Entering/d
+/^Stack/d
+/^Reading/d
+/^Reducing/d
+/^Shifting/d
+/^state/d
+/^Error:/d
+/^Next/d
+/^Discarding/d
+/^yydestructor:/d' stderr >at-stderr
+mv at-stderr stderr
+# 2. Create the reference error message.
+AT_DATA([[expout]],
+[$5
+])
+# 3. If locations are not used, remove them.
+AT_YYERROR_SEES_LOC_IF([],
+[[sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout]])
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+m4_bmatch([$1], [%error-verbose], [],
+[[sed 's/syntax error, .*$/syntax error/' expout >at-expout
+mv at-expout expout]])
+# 5. Check
+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])
+# ------------------------------
# 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 $1])
+AT_CHECK_PUSHDEFS($[1], $[2], [$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([$1], [--yyerror-verbose])],
+AT_CHECK([bison -o calc.c calc.y],
[0], [], [])
-AT_CHECK([$CC $CFLAGS calc.c -o calc], 0, [], [])
+
+AT_LALR1_CC_IF(
+[AT_CHECK([$CXX --version || exit 77], 0, ignore, ignore)
+AT_COMPILE_CXX([calc])],
+[AT_COMPILE([calc])])
# Test the priorities.
_AT_CHECK_CALC([$1],
1 - (2 - 3) = 2
2^2^3 = 256
-(2^2)^3 = 64], [$2])
-
-# Some parse errors.
-_AT_CHECK_CALC_ERROR([$1], [+1],
- [1.0:1.1],
- [, unexpected `'+''])
-_AT_CHECK_CALC_ERROR([$1], [1//2],
- [1.2:1.3],
- [, unexpected `'/'', expecting `NUM' or `'-'' or `'(''])
-_AT_CHECK_CALC_ERROR([$1], [error],
- [1.0:1.1],
- [, unexpected `$undefined.'])
-_AT_CHECK_CALC_ERROR([$1], [1 = 2 = 3],
- [1.6:1.7],
- [, unexpected `'=''])
-_AT_CHECK_CALC_ERROR([$1],
+(2^2)^3 = 64],
+ [486])
+
+# 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],
+ [1.0: syntax error, unexpected $undefined])
+_AT_CHECK_CALC_ERROR([$1], [1], [1 = 2 = 3], [22],
+ [1.6: syntax error, unexpected '='])
+_AT_CHECK_CALC_ERROR([$1], [1],
[
+1],
- [2.0:2.1],
- [, unexpected `'+''])
-
-AT_CLEANUP(calc calc.c calc.h calc.output)
+ [14],
+ [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"])
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure to
+#
+# - have several errors which exercise different shift/discardings
+# - (): nothing to pop, nothing to discard
+# - (1 + 1 + 1 +): a lot to pop, nothing to discard
+# - (* * *): nothing to pop, a lot to discard
+# - (1 + 2 * *): some to pop and discard
+#
+# - 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
+# 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 '!'
+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([$1], [0], [(!) + (0 0) = 1], [64],
+[1.9: syntax error, unexpected "number"
+calc: error: 2222 != 1])
+AT_CHECK_POPDEFS
+
+AT_CLEANUP
])# AT_CHECK_CALC
-# ------------------ #
-# Test the parsers. #
-# ------------------ #
+# ------------------------ #
+# Simple LALR Calculator. #
+# ------------------------ #
+
+AT_BANNER([[Simple LALR Calculator.]])
+
+# AT_CHECK_CALC_LALR([BISON-OPTIONS])
+# -----------------------------------
+# Start a testing chunk which compiles `calc' grammar with
+# BISON-OPTIONS, and performs several tests over the parser.
+m4_define([AT_CHECK_CALC_LALR],
+[AT_CHECK_CALC($@)])
+
+AT_CHECK_CALC_LALR()
+
+AT_CHECK_CALC_LALR([%defines])
+AT_CHECK_CALC_LALR([%locations])
+AT_CHECK_CALC_LALR([%name-prefix="calc"])
+AT_CHECK_CALC_LALR([%verbose])
+AT_CHECK_CALC_LALR([%yacc])
+AT_CHECK_CALC_LALR([%error-verbose])
+
+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([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {value *result} %parse-param {int *count}])
+
+
+# ----------------------- #
+# Simple GLR Calculator. #
+# ----------------------- #
+
+AT_BANNER([[Simple GLR Calculator.]])
+
+# AT_CHECK_CALC_GLR([BISON-OPTIONS])
+# ----------------------------------
+# Start a testing chunk which compiles `calc' grammar with
+# BISON-OPTIONS and %glr-parser, and performs several tests over the parser.
+m4_define([AT_CHECK_CALC_GLR],
+[AT_CHECK_CALC([%glr-parser] $@)])
+
+
+AT_CHECK_CALC_GLR()
+
+AT_CHECK_CALC_GLR([%defines])
+AT_CHECK_CALC_GLR([%locations])
+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([%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([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {value *result} %parse-param {int *count}])
+
+
+# ----------------------------- #
+# Simple LALR1 C++ Calculator. #
+# ----------------------------- #
+
+AT_BANNER([[Simple LALR1 C++ Calculator.]])
+
+# 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.
+m4_define([AT_CHECK_CALC_LALR1_CC],
+[AT_CHECK_CALC([%skeleton "lalr1.cc"] $@)])
+
+# 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])
-AT_CHECK_CALC()
+# AT_CHECK_CALC_LALR1_CC([%error-verbose %locations])
-AT_CHECK_CALC([--defines])
-AT_CHECK_CALC([--locations])
-AT_CHECK_CALC([--name-prefix=calc])
-AT_CHECK_CALC([--verbose])
-AT_CHECK_CALC([--yacc])
-AT_CHECK_CALC([--yyerror-verbose])
+AT_CHECK_CALC_LALR1_CC([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc])
-AT_CHECK_CALC([--locations --yyerror-verbose])
+# AT_CHECK_CALC_LALR1_CC([%debug])
+AT_CHECK_CALC_LALR1_CC([%error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
-AT_CHECK_CALC([--defines --locations --name-prefix=calc --verbose --yacc --yyerror-verbose])
+AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc])
-AT_CHECK_CALC([--debug])
-AT_CHECK_CALC([--debug --defines --locations --name-prefix=calc --verbose --yacc --yyerror-verbose])
+# 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}])
projects / bison.git / blobdiff