/* YACC parser for Fortran expressions, for GDB.
- Copyright 1986, 1989, 1990, 1991, 1993, 1994
- Free Software Foundation, Inc.
+ Copyright 1986, 1989, 1990, 1991, 1993, 1994, 1995, 1996, 2000, 2001
+ Free Software Foundation, Inc.
+
Contributed by Motorola. Adapted from the C parser by Farooq Butt
(fmbutt@engage.sps.mot.com).
%{
#include "defs.h"
-#include <string.h>
+#include "gdb_string.h"
#include "expression.h"
#include "value.h"
#include "parser-defs.h"
#include "bfd.h" /* Required by objfiles.h. */
#include "symfile.h" /* Required by objfiles.h. */
#include "objfiles.h" /* For have_full_symbols and have_partial_symbols */
+#include <ctype.h>
/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
as well as gratuitiously global symbol names, so we can have multiple
#define yylloc f_lloc
#define yyreds f_reds /* With YYDEBUG defined */
#define yytoks f_toks /* With YYDEBUG defined */
+#define yyname f_name /* With YYDEBUG defined */
+#define yyrule f_rule /* With YYDEBUG defined */
#define yylhs f_yylhs
#define yylen f_yylen
#define yydefred f_yydefred
#define yycheck f_yycheck
#ifndef YYDEBUG
-#define YYDEBUG 1 /* Default to no yydebug support */
+#define YYDEBUG 1 /* Default to yydebug support */
#endif
-int yyparse PARAMS ((void));
+#define YYFPRINTF parser_fprintf
+
+int yyparse (void);
+
+static int yylex (void);
+
+void yyerror (char *);
-static int yylex PARAMS ((void));
+static void growbuf_by_size (int);
-void yyerror PARAMS ((char *));
+static int match_string_literal (void);
%}
%{
/* YYSTYPE gets defined by %union */
-static int parse_number PARAMS ((char *, int, int, YYSTYPE *));
+static int parse_number (char *, int, int, YYSTYPE *);
%}
%type <voidval> exp type_exp start variable
{
register LONGEST n = 0;
register LONGEST prevn = 0;
- register int i;
register int c;
register int base = input_radix;
int unsigned_p = 0;
int long_p = 0;
- unsigned LONGEST high_bit;
+ ULONGEST high_bit;
struct type *signed_type;
struct type *unsigned_type;
/* [dD] is not understood as an exponent by atof, change it to 'e'. */
char *tmp, *tmp2;
- tmp = strsave (p);
+ tmp = xstrdup (p);
for (tmp2 = tmp; *tmp2; ++tmp2)
if (*tmp2 == 'd' || *tmp2 == 'D')
*tmp2 = 'e';
while (len-- > 0)
{
c = *p++;
- if (c >= 'A' && c <= 'Z')
- c += 'a' - 'A';
- if (c != 'l' && c != 'u')
- n *= base;
- if (c >= '0' && c <= '9')
- n += i = c - '0';
+ if (isupper (c))
+ c = tolower (c);
+ if (len == 0 && c == 'l')
+ long_p = 1;
+ else if (len == 0 && c == 'u')
+ unsigned_p = 1;
else
{
- if (base > 10 && c >= 'a' && c <= 'f')
- n += i = c - 'a' + 10;
- else if (len == 0 && c == 'l')
- long_p = 1;
- else if (len == 0 && c == 'u')
- unsigned_p = 1;
+ int i;
+ if (c >= '0' && c <= '9')
+ i = c - '0';
+ else if (c >= 'a' && c <= 'f')
+ i = c - 'a' + 10;
else
return ERROR; /* Char not a digit */
+ if (i >= base)
+ return ERROR; /* Invalid digit in this base */
+ n *= base;
+ n += i;
}
- if (i >= base)
- return ERROR; /* Invalid digit in this base */
-
/* Portably test for overflow (only works for nonzero values, so make
a second check for zero). */
if ((prevn >= n) && n != 0)
&& ((n >> 2) >> (TARGET_INT_BIT-2))) /* Avoid shift warning */
|| long_p)
{
- high_bit = ((unsigned LONGEST)1) << (TARGET_LONG_BIT-1);
+ high_bit = ((ULONGEST)1) << (TARGET_LONG_BIT-1);
unsigned_type = builtin_type_unsigned_long;
signed_type = builtin_type_long;
}
else
{
- high_bit = ((unsigned LONGEST)1) << (TARGET_INT_BIT-1);
+ high_bit = ((ULONGEST)1) << (TARGET_INT_BIT-1);
unsigned_type = builtin_type_unsigned_int;
signed_type = builtin_type_int;
}
char *tokstart;
retry:
-
+
+ prev_lexptr = lexptr;
+
tokstart = lexptr;
/* First of all, let us make sure we are not dealing with the
yyerror (msg)
char *msg;
{
+ if (prev_lexptr)
+ lexptr = prev_lexptr;
+
error ("A %s in expression, near `%s'.", (msg ? msg : "error"), lexptr);
}