# Checking the output filenames. -*- Autotest -*-
-# Copyright 2000, 2001 Free Software Foundation, Inc.
+# Copyright (C) 2000, 2001, 2002 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
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
-AT_BANNER([[Simple Calculator.]])
-
## ---------------------------------------------------- ##
## Compile the grammar described in the documentation. ##
## ---------------------------------------------------- ##
%{
#include <config.h>
-/* We don't need a perfect malloc for these tests. */
+/* We don't need perfect functions for these tests. */
#undef malloc
+#undef memcmp
+#undef realloc
#include <stdio.h>
#if STDC_HEADERS
char *strcat(char *dest, const char *src);
#endif
#include <ctype.h>
-]$4[
+
+extern void perror (const char *s);
+
+/* Exercise pre-prologue dependency to %union. */
+typedef int value_t;
+
+%}
+
+/* Exercise %union. */
+%union
+{
+ value_t ival;
+};
+
+%{
+#if YYPURE
+# define LOC (*yylloc)
+# define VAL (*yylval)
+#else
+# define LOC (yylloc)
+# define VAL (yylval)
+#endif
+
+#if YYPURE
+# if YYLSP_NEEDED
+# define LEX_FORMALS YYSTYPE *yylval, YYLTYPE *yylloc
+# define LEX_ARGS yylval, yylloc
+# define USE_LEX_ARGS (void) yylval; (void) yylloc;
+# else
+# define LEX_FORMALS YYSTYPE *yylval
+# define LEX_ARGS yylval
+# define USE_LEX_ARGS (void) yylval
+# endif
+# define LEX_PRE_FORMALS LEX_FORMALS,
+# define LEX_PRE_ARGS LEX_ARGS,
+#else
+# define LEX_FORMALS void
+# define LEX_PRE_FORMALS
+# define LEX_ARGS
+# define LEX_PRE_ARGS
+# define USE_LEX_ARGS
+#endif
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);
+static int yylex (LEX_FORMALS);
+static int yygetc (LEX_FORMALS);
+static void yyungetc (LEX_PRE_FORMALS int c);
%}
-/* BISON Declarations */
-%token NUM
+/* Bison Declarations */
+%token CALC_EOF 0 "end of input"
+%token <ival> NUM "number"
+%type <ival> exp
%nonassoc '=' /* comparison */
%left '-' '+'
%left NEG /* negation--unary minus */
%right '^' /* exponentiation */
+]$4[
+
/* Grammar follows */
%%
input:
- /* empty string */
+ line
| input line
;
| exp '=' exp
{
if ($1 != $3)
- printf ("calc: error: %d != %d\n", $1, $3);
+ fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
$$ = $1 == $3;
}
| exp '+' exp { $$ = $1 + $3; }
| '-' exp %prec NEG { $$ = -$2; }
| exp '^' exp { $$ = power ($1, $3); }
| '(' exp ')' { $$ = $2; }
+| '(' error ')' { $$ = 0; }
;
%%
/* The input. */
yyerror (const char *s)
{
#if YYLSP_NEEDED
- fprintf (stderr, "%d.%d:%d.%d: ",
- yylloc.first_line, yylloc.first_column,
- yylloc.last_line, yylloc.last_column);
+ fprintf (stderr, "%d.%d-%d.%d: ",
+ LOC.first_line, LOC.first_column,
+ LOC.last_line, LOC.last_column);
#endif
fprintf (stderr, "%s\n", s);
}
+
+#if YYLSP_NEEDED
+static YYLTYPE last_yylloc;
+#endif
static int
-yygetc (void)
+yygetc (LEX_FORMALS)
{
int res = getc (yyin);
+ USE_LEX_ARGS;
#if YYLSP_NEEDED
+ last_yylloc = LOC;
if (res == '\n')
{
- yylloc.last_line++;
- yylloc.last_column = 0;
+ LOC.last_line++;
+ LOC.last_column = 1;
}
else
- yylloc.last_column++;
+ LOC.last_column++;
#endif
return res;
}
static void
-yyungetc (int c)
+yyungetc (LEX_PRE_FORMALS int c)
{
+ USE_LEX_ARGS;
#if YYLSP_NEEDED
/* Wrong when C == `\n'. */
- yylloc.last_column--;
+ LOC = last_yylloc;
#endif
ungetc (c, yyin);
}
static int
-read_signed_integer (void)
+read_signed_integer (LEX_FORMALS)
{
- int c = yygetc ();
+ int c = yygetc (LEX_ARGS);
int sign = 1;
int n = 0;
+ USE_LEX_ARGS;
if (c == '-')
{
- c = yygetc ();
+ c = yygetc (LEX_ARGS);
sign = -1;
}
while (isdigit (c))
{
n = 10 * n + (c - '0');
- c = yygetc ();
+ c = yygetc (LEX_ARGS);
}
- yyungetc (c);
+ yyungetc (LEX_PRE_ARGS c);
return sign * n;
}
`---------------------------------------------------------------*/
static int
-yylex (void)
+yylex (LEX_FORMALS)
{
+ static int init = 1;
int c;
+ if (init)
+ {
+ init = 0;
#if YYLSP_NEEDED
- yylloc.first_column = yylloc.last_column;
- yylloc.first_line = yylloc.last_line;
+ LOC.last_column = 1;
+ LOC.last_line = 1;
+#endif
+ }
+
+#if YYLSP_NEEDED
+ LOC.first_column = LOC.last_column;
+ LOC.first_line = LOC.last_line;
#endif
/* Skip white space. */
- while ((c = yygetc ()) == ' ' || c == '\t')
+ while ((c = yygetc (LEX_ARGS)) == ' ' || c == '\t')
{
#if YYLSP_NEEDED
- yylloc.first_column = yylloc.last_column;
- yylloc.first_line = yylloc.last_line;
+ LOC.first_column = LOC.last_column;
+ LOC.first_line = LOC.last_line;
#endif
}
/* process numbers */
if (c == '.' || isdigit (c))
{
- yyungetc (c);
- yylval = read_signed_integer ();
+ yyungetc (LEX_PRE_ARGS c);
+ VAL.ival = read_signed_integer (LEX_ARGS);
return NUM;
}
/* Return end-of-file. */
if (c == EOF)
- return 0;
+ return CALC_EOF;
/* Return single chars. */
return c;
#if YYDEBUG
yydebug = 1;
-#endif
-#if YYLSP_NEEDED
- yylloc.last_column = 0;
- yylloc.last_line = 1;
#endif
yyparse ();
return 0;
# Produce `calc.y'.
m4_define([AT_DATA_CALC_Y],
[_AT_DATA_CALC_Y($[1], $[2], $[3],
- [m4_bmatch([$1], [--yyerror-verbose],
- [[#define YYERROR_VERBOSE]])])])
+ [m4_bpatsubst([$1], [--[^ ]*])])
+])
# ------------------------------------------------------------
# Run `calc' on INPUT and expect no STDOUT nor STDERR.
#
-# If BISON-OPTIONS contains `--debug', then NUM-STDERR-LINES is the number
-# of expected lines on 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_CHECK([calc input], 0, [], [stderr])dnl
-AT_CHECK([wc -l <stderr | sed 's/[[^0-9]]//g'], 0,
- [m4_bmatch([$1], [--debug],
- [$3], [0])
-])
+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
+])])
])
# ------------------------------------------------------------
# Run `calc' on INPUT, and expect a `parse 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 `--yyerror-verbose', then make sure the
+# If BISON-OPTIONS contains `%error-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.
+# 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],
-[AT_DATA([[input]],
+[m4_bmatch([$2], [^/],
+ [AT_PARSER_CHECK([./calc $2], 0, [], [stderr])],
+ [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
+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
+])])
+
+# 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
-
-AT_CHECK([cat stderr], 0,
-[m4_bmatch([$1], [--location], [$4: ])[]dnl
-parse error[]dnl
-m4_bmatch([$1], [--yyerror-verbose], [, $5])[]dnl
-
+# 2. Create the reference error message.
+AT_DATA([[expout]],
+[$4
])
-
+# 3. If locations are not used, remove them.
+m4_bmatch([$1], [%locations], [],
+[[sed 's/^[-0-9.]*: //' expout >at-expout
+mv at-expout expout]])
+# 4. If error-verbose is not used, strip the`, unexpected....' part.
+m4_bmatch([$1], [%error-verbose], [],
+[[sed 's/parse error, .*$/parse error/' expout >at-expout
+mv at-expout expout]])
+# 5. Check
+AT_CHECK([cat stderr], 0, [expout])
])
-# AT_CHECK_CALC([BISON-OPTIONS], [PARSER-EXPECTED-STDERR])
-# --------------------------------------------------------
+# AT_CHECK_CALC([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],
AT_DATA_CALC_Y([$1])
# Specify the output files to avoid problems on different file systems.
-AT_CHECK([bison calc.y -o calc.c m4_bpatsubst([$1], [--yyerror-verbose])],
+AT_CHECK([bison -o calc.c m4_bpatsubst([$1], [%[^ ]*]) calc.y],
[0], [], [])
-# Some compilers issue warnings we don't want to hear about.
-# Maybe some day we will have proper Autoconf macros to disable these
-# warnings, but this place is not the right one for that.
-# So let's keep only GCC warnings, which we know are sane.
-AT_CHECK([$CC $CFLAGS $CPPFLAGS calc.c -o calc], 0, [], [stderr])
-AT_CHECK([if test "$GCC" = yes; then cat stderr; else true; fi])
+AT_COMPILE([calc])
# Test the priorities.
_AT_CHECK_CALC([$1],
1 - (2 - 3) = 2
2^2^3 = 256
-(2^2)^3 = 64], [491])
+(2^2)^3 = 64], [486])
# Some parse errors.
-_AT_CHECK_CALC_ERROR([$1], [+1], [8],
- [1.0:1.1],
- [unexpected `'+''])
-_AT_CHECK_CALC_ERROR([$1], [1//2], [17],
- [1.2:1.3],
- [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], [23],
- [1.6:1.7],
- [unexpected `'=''])
+_AT_CHECK_CALC_ERROR([$1], [0 0], [11],
+ [1.3-1.4: parse error, unexpected "number"])
+_AT_CHECK_CALC_ERROR([$1], [1//2], [15],
+ [1.3-1.4: parse error, unexpected '/', expecting "number" or '-' or '('])
+_AT_CHECK_CALC_ERROR([$1], [error], [4],
+ [1.1-1.2: parse error, unexpected $undefined, expecting "number" or '-' or '\n' or '('])
+_AT_CHECK_CALC_ERROR([$1], [1 = 2 = 3], [22],
+ [1.7-1.8: parse error, unexpected '='])
_AT_CHECK_CALC_ERROR([$1],
[
+1],
- [16],
- [2.0:2.1],
- [unexpected `'+''])
-
-AT_CLEANUP(calc calc.c calc.h calc.output)
+ [14],
+ [2.1-2.2: parse error, unexpected '+'])
+# Exercise error messages with EOF: work on an empty file.
+_AT_CHECK_CALC_ERROR([$1], [/dev/null], [4],
+ [1.1-1.2: parse error, unexpected "end of input", expecting "number" or '-' or '\n' or '('])
+
+# Exercise the error token: without it, we die at the first error,
+# hence be sure i. to have several errors, ii. to test the action
+# associated to `error'.
+_AT_CHECK_CALC_ERROR([$1], [(1 ++ 2) + (0 0) = 1], [82],
+[1.5-1.6: parse error, unexpected '+', expecting "number" or '-' or '('
+1.15-1.16: parse error, unexpected "number"
+calc: error: 0 != 1])
+
+# Add a studid example demonstrating that Bison can further improve the
+# error message. FIXME: Fix this ridiculous message.
+_AT_CHECK_CALC_ERROR([$1], [()], [21],
+[1.2-1.3: parse error, unexpected ')', expecting "number" or '-' or '('])
+
+AT_CLEANUP
])# AT_CHECK_CALC
-# ------------------ #
-# Test the parsers. #
-# ------------------ #
+# ------------------------ #
+# Simple LALR Calculator. #
+# ------------------------ #
+
+AT_BANNER([[Simple LALR Calculator.]])
+
+# AT_CHECK_CALC_LALR([BISON-OPTIONS])
+# -----------------------------------
+# Start a testing chunk which compiles `calc' grammar with
+# BISON-OPTIONS, and performs several tests over the parser.
+m4_define([AT_CHECK_CALC_LALR],
+[AT_CHECK_CALC($@)])
+
+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])
+
+# FIXME: Not ready yet.
+# AT_CHECK_CALC_LALR([%pure-parser %error-verbose %debug %locations --defines --name-prefix=calc --verbose --yacc])
+
+
+# ----------------------- #
+# 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()
+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([--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_GLR([%error-verbose %locations])
-AT_CHECK_CALC([--locations --yyerror-verbose])
+AT_CHECK_CALC_GLR([%error-verbose %locations --defines --name-prefix=calc --verbose --yacc])
-AT_CHECK_CALC([--defines --locations --name-prefix=calc --verbose --yacc --yyerror-verbose])
+AT_CHECK_CALC_GLR([%debug])
+AT_CHECK_CALC_GLR([%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_GLR([%pure-parser %error-verbose %debug %locations --defines --name-prefix=calc --verbose --yacc])
projects / bison.git / blobdiff