# 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
#endif
#include <ctype.h>
-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. */
%}
-/* Exercise M4 quoting: '@:>@@:>@', 0. */
-
-/* Also exercise %union. */
+/* Exercise %union. */
%union
{
- value_t ival; /* A comment to exercise an old bug. */
+ value_t ival;
};
-/* Exercise post-prologue dependency to %union. */
%{
-static void id (YYSTYPE *lval);
+#if YYPURE
+# define LOC (*yylloc)
+# define VAL (*yylval)
+#else
+# define LOC (yylloc)
+# define VAL (yylval)
+#endif
-/* Exercise quotes in declarations. */
-char quote[] = "@:>@@:>@,";
+#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 (LEX_FORMALS);
+static int yygetc (LEX_FORMALS);
+static void yyungetc (LEX_PRE_FORMALS int c);
%}
/* Bison Declarations */
-%token CALC_EOF 0 "end of file"
+%token CALC_EOF 0 "end of input"
%token <ival> NUM "number"
%type <ival> exp
-/* Exercise quotes in strings. */
-%token FAKE "fake @>:@@>:@,"
-
%nonassoc '=' /* comparison */
%left '-' '+'
%left '*' '/'
line:
'\n'
| exp '\n'
- {
- /* Exercise quotes in braces. */
- char tmp[] = "@>:@@:>@,";
- }
;
-/* Exercise M4 quoting: '@:>@@:>@', 1. */
exp:
NUM { $$ = $1; }
| exp '=' exp
/* The input. */
FILE *yyin;
-/* Exercise M4 quoting: '@:>@@:>@', 2. */
static void
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);
+ LOC.first_line, LOC.first_column,
+ LOC.last_line, LOC.last_column);
#endif
fprintf (stderr, "%s\n", s);
}
static YYLTYPE last_yylloc;
#endif
static int
-yygetc (void)
+yygetc (LEX_FORMALS)
{
int res = getc (yyin);
+ USE_LEX_ARGS;
#if YYLSP_NEEDED
- last_yylloc = yylloc;
+ last_yylloc = LOC;
if (res == '\n')
{
- yylloc.last_line++;
- yylloc.last_column = 1;
+ 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_yylloc;
+ 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
+ LOC.last_column = 1;
+ LOC.last_line = 1;
+#endif
+ }
+
#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
/* 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.ival = read_signed_integer ();
+ yyungetc (LEX_PRE_ARGS c);
+ VAL.ival = read_signed_integer (LEX_ARGS);
return NUM;
}
return res;
}
-void
-id (YYSTYPE* lval)
-{
-}
-
int
main (int argc, const char **argv)
{
#if YYDEBUG
yydebug = 1;
-#endif
-#if YYLSP_NEEDED
- yylloc.last_column = 1;
- 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],
- [[%error-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
+])])
])
# 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],
[m4_bmatch([$2], [^/],
- [AT_CHECK([./calc $2], 0, [], [stderr])],
+ [AT_PARSER_CHECK([./calc $2], 0, [], [stderr])],
[AT_DATA([[input]],
[[$2
]])
-AT_CHECK([./calc input], 0, [], [stderr])])
-
-m4_bmatch([$1], [--debug],
-[AT_CHECK([wc -l <stderr | sed 's/[[^0-9]]//g'], 0, [$3
+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
# 1. Remove the traces from observed.
sed '/^Starting/d
/^Entering/d
+/^Stack/d
/^Reading/d
/^Reducing/d
/^Shifting/d
[$4
])
# 3. If locations are not used, remove them.
-m4_bmatch([$1], [--location], [],
+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], [--yyerror-verbose], [],
+m4_bmatch([$1], [%error-verbose], [],
[[sed 's/parse error, .*$/parse error/' expout >at-expout
mv at-expout expout]])
# 5. Check
])
-# 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([$1], [%[^ ]*]) calc.y],
[0], [], [])
-AT_CHECK([$CC $CFLAGS $CPPFLAGS calc.c -o calc], 0, [], [ignore])
+AT_COMPILE([calc])
# Test the priorities.
_AT_CHECK_CALC([$1],
(2^2)^3 = 64], [486])
# Some parse errors.
-_AT_CHECK_CALC_ERROR([$1], [0 0], [12],
+_AT_CHECK_CALC_ERROR([$1], [0 0], [11],
[1.3-1.4: parse error, unexpected "number"])
-_AT_CHECK_CALC_ERROR([$1], [1//2], [17],
+_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], [25],
+ [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],
- [15],
+ [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 file", expecting "number" or '-' or '\n' or '('])
+_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],
- [91],
+_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 error or "number" or '-' or '('])
+_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])
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