%{
#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>
-
-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);
+#include <assert.h>
extern void perror (const char *s);
/* Exercise pre-prologue dependency to %union. */
typedef int value_t;
+value_t global_result = 0;
+int global_count = 0;
+
%}
+%parse-param "value_t *result", "result"
+%parse-param "int *count", "count"
+
/* 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 (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
%%
input:
line
-| input line
+| input line { ++*count; ++global_count; }
;
line:
- '\n' {}
-| exp '\n' {}
+ '\n'
+| exp '\n' { *result = global_result = $1; }
;
exp:
{
if ($1 != $3)
fprintf (stderr, "calc: error: %d != %d\n", $1, $3);
- $$ = $1 == $3;
+ $$ = $1;
}
| exp '+' exp { $$ = $1 + $3; }
| exp '-' exp { $$ = $1 - $3; }
{
#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;
}
int
main (int argc, const char **argv)
{
+ value_t result = 0;
+ int count = 0;
yyin = NULL;
if (argc == 2)
#if YYDEBUG
yydebug = 1;
#endif
-#if YYLSP_NEEDED
- yylloc.last_column = 1;
- yylloc.last_line = 1;
-#endif
- yyparse ();
+ yyparse (&result, &count);
+ assert (global_result == result);
+ assert (global_count == count);
+
return 0;
}
]])
[$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.
1 - (2 - 3) = 2
2^2^3 = 256
-(2^2)^3 = 64], [486])
+(2^2)^3 = 64],
+ [486])
# Some parse errors.
_AT_CHECK_CALC_ERROR([$1], [0 0], [11],
[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 '('])
+ [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
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
AT_CHECK_CALC_LALR()
AT_CHECK_CALC_LALR([--defines])
-AT_CHECK_CALC_LALR([--locations])
+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])
-AT_CHECK_CALC_LALR([%error-verbose --defines --locations --name-prefix=calc --verbose --yacc])
+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 --defines --locations --name-prefix=calc --verbose --yacc])
+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])
# ----------------------- #
# 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-parser] $@)])
AT_CHECK_CALC_GLR()
AT_CHECK_CALC_GLR([--defines])
-AT_CHECK_CALC_GLR([--locations])
+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])
-AT_CHECK_CALC_GLR([%error-verbose --defines --locations --name-prefix=calc --verbose --yacc])
+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 --defines --locations --name-prefix=calc --verbose --yacc])
+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])
projects / bison.git / blobdiff