*** empty log message ***
[deliverable/binutils-gdb.git] / gdb / c-exp.y
index 27d18487766b78e416cbb69ad746e6f14df2527e..153e2be3cf8a188549d81c65452d8e2270209c66 100644 (file)
@@ -1,6 +1,6 @@
 /* YACC parser for C expressions, for GDB.
-   Copyright 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
-   1998, 1999, 2000, 2003, 2004
+   Copyright (C) 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+   1998, 1999, 2000, 2003, 2004, 2006, 2007, 2008
    Free Software Foundation, Inc.
 
 This file is part of GDB.
@@ -17,7 +17,8 @@ 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.  */
+Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
 
 /* Parse a C expression from text in a string,
    and return the result as a  struct expression  pointer.
@@ -52,6 +53,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #include "charset.h"
 #include "block.h"
 #include "cp-support.h"
+#include "dfp.h"
+
+#define parse_type builtin_type (parse_gdbarch)
 
 /* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
    as well as gratuitiously global symbol names, so we can have multiple
@@ -61,7 +65,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
    generators need to be fixed instead of adding those names to this list. */
 
 #define        yymaxdepth c_maxdepth
-#define        yyparse c_parse
+#define        yyparse c_parse_internal
 #define        yylex   c_lex
 #define        yyerror c_error
 #define        yylval  c_lval
@@ -130,6 +134,10 @@ void yyerror (char *);
       DOUBLEST dval;
       struct type *type;
     } typed_val_float;
+    struct {
+      gdb_byte val[16];
+      struct type *type;
+    } typed_val_decfloat;
     struct symbol *sym;
     struct type *tval;
     struct stoken sval;
@@ -162,6 +170,7 @@ static int parse_number (char *, int, int, YYSTYPE *);
 
 %token <typed_val_int> INT
 %token <typed_val_float> FLOAT
+%token <typed_val_decfloat> DECFLOAT
 
 /* Both NAME and TYPENAME tokens represent symbols in the input,
    and both convey their data as strings.
@@ -173,8 +182,9 @@ static int parse_number (char *, int, int, YYSTYPE *);
 
 %token <sval> STRING
 %token <ssym> NAME /* BLOCKNAME defined below to give it higher precedence. */
+%token <voidval> COMPLETE
 %token <tsym> TYPENAME
-%type <sval> name
+%type <sval> name string_exp
 %type <ssym> name_not_typename
 %type <tsym> typename
 
@@ -256,6 +266,10 @@ exp        :       '-' exp    %prec UNARY
                        { write_exp_elt_opcode (UNOP_NEG); }
        ;
 
+exp    :       '+' exp    %prec UNARY
+                       { write_exp_elt_opcode (UNOP_PLUS); }
+       ;
+
 exp    :       '!' exp    %prec UNARY
                        { write_exp_elt_opcode (UNOP_LOGICAL_NOT); }
        ;
@@ -290,6 +304,23 @@ exp        :       exp ARROW name
                          write_exp_elt_opcode (STRUCTOP_PTR); }
        ;
 
+exp    :       exp ARROW name COMPLETE
+                       { mark_struct_expression ();
+                         write_exp_elt_opcode (STRUCTOP_PTR);
+                         write_exp_string ($3);
+                         write_exp_elt_opcode (STRUCTOP_PTR); }
+       ;
+
+exp    :       exp ARROW COMPLETE
+                       { struct stoken s;
+                         mark_struct_expression ();
+                         write_exp_elt_opcode (STRUCTOP_PTR);
+                         s.ptr = "";
+                         s.length = 0;
+                         write_exp_string (s);
+                         write_exp_elt_opcode (STRUCTOP_PTR); }
+       ;
+
 exp    :       exp ARROW qualified_name
                        { /* exp->type::name becomes exp->*(&type::name) */
                          /* Note: this doesn't work if name is a
@@ -308,6 +339,23 @@ exp        :       exp '.' name
                          write_exp_elt_opcode (STRUCTOP_STRUCT); }
        ;
 
+exp    :       exp '.' name COMPLETE
+                       { mark_struct_expression ();
+                         write_exp_elt_opcode (STRUCTOP_STRUCT);
+                         write_exp_string ($3);
+                         write_exp_elt_opcode (STRUCTOP_STRUCT); }
+       ;
+
+exp    :       exp '.' COMPLETE
+                       { struct stoken s;
+                         mark_struct_expression ();
+                         write_exp_elt_opcode (STRUCTOP_STRUCT);
+                         s.ptr = "";
+                         s.length = 0;
+                         write_exp_string (s);
+                         write_exp_elt_opcode (STRUCTOP_STRUCT); }
+       ;
+
 exp    :       exp '.' qualified_name
                        { /* exp.type::name becomes exp.*(&type::name) */
                          /* Note: this doesn't work if name is a
@@ -492,6 +540,13 @@ exp        :       FLOAT
                          write_exp_elt_opcode (OP_DOUBLE); }
        ;
 
+exp    :       DECFLOAT
+                       { write_exp_elt_opcode (OP_DECFLOAT);
+                         write_exp_elt_type ($1.type);
+                         write_exp_elt_decfloatcst ($1.val);
+                         write_exp_elt_opcode (OP_DECFLOAT); }
+       ;
+
 exp    :       variable
        ;
 
@@ -501,13 +556,40 @@ exp       :       VARIABLE
 
 exp    :       SIZEOF '(' type ')'     %prec UNARY
                        { write_exp_elt_opcode (OP_LONG);
-                         write_exp_elt_type (builtin_type (current_gdbarch)->builtin_int);
+                         write_exp_elt_type (parse_type->builtin_int);
                          CHECK_TYPEDEF ($3);
                          write_exp_elt_longcst ((LONGEST) TYPE_LENGTH ($3));
                          write_exp_elt_opcode (OP_LONG); }
        ;
 
-exp    :       STRING
+string_exp:
+               STRING
+                       {
+                         /* We copy the string here, and not in the
+                            lexer, to guarantee that we do not leak a
+                            string.  Note that we follow the
+                            NUL-termination convention of the
+                            lexer.  */
+                         $$.length = $1.length;
+                         $$.ptr = malloc ($1.length + 1);
+                         memcpy ($$.ptr, $1.ptr, $1.length + 1);
+                       }
+
+       |       string_exp STRING
+                       {
+                         /* Note that we NUL-terminate here, but just
+                            for convenience.  */
+                         struct stoken t;
+                         t.length = $1.length + $2.length;
+                         t.ptr = malloc (t.length + 1);
+                         memcpy (t.ptr, $1.ptr, $1.length);
+                         memcpy (t.ptr + $1.length, $2.ptr, $2.length + 1);
+                         free ($1.ptr);
+                         $$ = t;
+                       }
+               ;
+
+exp    :       string_exp
                        { /* C strings are converted into array constants with
                             an explicit null byte added at the end.  Thus
                             the array upper bound is the string length.
@@ -517,31 +599,33 @@ exp       :       STRING
                          while (count-- > 0)
                            {
                              write_exp_elt_opcode (OP_LONG);
-                             write_exp_elt_type (builtin_type (current_gdbarch)->builtin_char);
+                             write_exp_elt_type (parse_type->builtin_char);
                              write_exp_elt_longcst ((LONGEST)(*sp++));
                              write_exp_elt_opcode (OP_LONG);
                            }
                          write_exp_elt_opcode (OP_LONG);
-                         write_exp_elt_type (builtin_type (current_gdbarch)->builtin_char);
+                         write_exp_elt_type (parse_type->builtin_char);
                          write_exp_elt_longcst ((LONGEST)'\0');
                          write_exp_elt_opcode (OP_LONG);
                          write_exp_elt_opcode (OP_ARRAY);
                          write_exp_elt_longcst ((LONGEST) 0);
                          write_exp_elt_longcst ((LONGEST) ($1.length));
-                         write_exp_elt_opcode (OP_ARRAY); }
+                         write_exp_elt_opcode (OP_ARRAY);
+                         free ($1.ptr);
+                       }
        ;
 
 /* C++.  */
 exp     :       TRUEKEYWORD    
                         { write_exp_elt_opcode (OP_LONG);
-                          write_exp_elt_type (builtin_type (current_gdbarch)->builtin_bool);
+                          write_exp_elt_type (parse_type->builtin_bool);
                           write_exp_elt_longcst ((LONGEST) 1);
                           write_exp_elt_opcode (OP_LONG); }
        ;
 
 exp     :       FALSEKEYWORD   
                         { write_exp_elt_opcode (OP_LONG);
-                          write_exp_elt_type (builtin_type (current_gdbarch)->builtin_bool);
+                          write_exp_elt_type (parse_type->builtin_bool);
                           write_exp_elt_longcst ((LONGEST) 0);
                           write_exp_elt_opcode (OP_LONG); }
        ;
@@ -565,8 +649,7 @@ block       :       BLOCKNAME
 block  :       block COLONCOLON name
                        { struct symbol *tem
                            = lookup_symbol (copy_name ($3), $1,
-                                            VAR_DOMAIN, (int *) NULL,
-                                            (struct symtab **) NULL);
+                                            VAR_DOMAIN, (int *) NULL);
                          if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK)
                            error ("No function \"%s\" in specified context.",
                                   copy_name ($3));
@@ -576,8 +659,7 @@ block       :       block COLONCOLON name
 variable:      block COLONCOLON name
                        { struct symbol *sym;
                          sym = lookup_symbol (copy_name ($3), $1,
-                                              VAR_DOMAIN, (int *) NULL,
-                                              (struct symtab **) NULL);
+                                              VAR_DOMAIN, (int *) NULL);
                          if (sym == 0)
                            error ("No symbol \"%s\" in specified context.",
                                   copy_name ($3));
@@ -637,8 +719,7 @@ variable:   qualified_name
 
                          sym =
                            lookup_symbol (name, (const struct block *) NULL,
-                                          VAR_DOMAIN, (int *) NULL,
-                                          (struct symtab **) NULL);
+                                          VAR_DOMAIN, (int *) NULL);
                          if (sym)
                            {
                              write_exp_elt_opcode (OP_VAR_VALUE);
@@ -650,16 +731,11 @@ variable: qualified_name
 
                          msymbol = lookup_minimal_symbol (name, NULL, NULL);
                          if (msymbol != NULL)
-                           {
-                             write_exp_msymbol (msymbol,
-                                                lookup_function_type (builtin_type (current_gdbarch)->builtin_int),
-                                                builtin_type (current_gdbarch)->builtin_int);
-                           }
+                           write_exp_msymbol (msymbol);
+                         else if (!have_full_symbols () && !have_partial_symbols ())
+                           error ("No symbol table is loaded.  Use the \"file\" command.");
                          else
-                           if (!have_full_symbols () && !have_partial_symbols ())
-                             error ("No symbol table is loaded.  Use the \"file\" command.");
-                           else
-                             error ("No symbol \"%s\" in current context.", name);
+                           error ("No symbol \"%s\" in current context.", name);
                        }
        ;
 
@@ -706,11 +782,7 @@ variable:  name_not_typename
                              msymbol =
                                lookup_minimal_symbol (arg, NULL, NULL);
                              if (msymbol != NULL)
-                               {
-                                 write_exp_msymbol (msymbol,
-                                                    lookup_function_type (builtin_type (current_gdbarch)->builtin_int),
-                                                    builtin_type (current_gdbarch)->builtin_int);
-                               }
+                               write_exp_msymbol (msymbol);
                              else if (!have_full_symbols () && !have_partial_symbols ())
                                error ("No symbol table is loaded.  Use the \"file\" command.");
                              else
@@ -785,7 +857,7 @@ func_mod:   '(' ')'
                        { free ($2); $$ = 0; }
        ;
 
-/* We used to try to recognize more pointer to member types here, but
+/* We used to try to recognize pointer to member types here, but
    that didn't work (shift/reduce conflicts meant that these rules never
    got executed).  The problem is that
      int (foo::bar::baz::bizzle)
@@ -794,69 +866,67 @@ func_mod: '(' ')'
    is a pointer to member type.  Stroustrup loses again!  */
 
 type   :       ptype
-       |       typebase COLONCOLON '*'
-                       { $$ = lookup_member_type (builtin_type (current_gdbarch)->builtin_int, $1); }
        ;
 
 typebase  /* Implements (approximately): (type-qualifier)* type-specifier */
        :       TYPENAME
                        { $$ = $1.type; }
        |       INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_int; }
+                       { $$ = parse_type->builtin_int; }
        |       LONG
-                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
+                       { $$ = parse_type->builtin_long; }
        |       SHORT
-                       { $$ = builtin_type (current_gdbarch)->builtin_short; }
+                       { $$ = parse_type->builtin_short; }
        |       LONG INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
+                       { $$ = parse_type->builtin_long; }
        |       LONG SIGNED_KEYWORD INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
+                       { $$ = parse_type->builtin_long; }
        |       LONG SIGNED_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
+                       { $$ = parse_type->builtin_long; }
        |       SIGNED_KEYWORD LONG INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
+                       { $$ = parse_type->builtin_long; }
        |       UNSIGNED LONG INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long; }
+                       { $$ = parse_type->builtin_unsigned_long; }
        |       LONG UNSIGNED INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long; }
+                       { $$ = parse_type->builtin_unsigned_long; }
        |       LONG UNSIGNED
-                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long; }
+                       { $$ = parse_type->builtin_unsigned_long; }
        |       LONG LONG
-                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
+                       { $$ = parse_type->builtin_long_long; }
        |       LONG LONG INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
+                       { $$ = parse_type->builtin_long_long; }
        |       LONG LONG SIGNED_KEYWORD INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
+                       { $$ = parse_type->builtin_long_long; }
        |       LONG LONG SIGNED_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
+                       { $$ = parse_type->builtin_long_long; }
        |       SIGNED_KEYWORD LONG LONG
-                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
+                       { $$ = parse_type->builtin_long_long; }
        |       SIGNED_KEYWORD LONG LONG INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
+                       { $$ = parse_type->builtin_long_long; }
        |       UNSIGNED LONG LONG
-                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long_long; }
+                       { $$ = parse_type->builtin_unsigned_long_long; }
        |       UNSIGNED LONG LONG INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long_long; }
+                       { $$ = parse_type->builtin_unsigned_long_long; }
        |       LONG LONG UNSIGNED
-                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long_long; }
+                       { $$ = parse_type->builtin_unsigned_long_long; }
        |       LONG LONG UNSIGNED INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long_long; }
+                       { $$ = parse_type->builtin_unsigned_long_long; }
        |       SHORT INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_short; }
+                       { $$ = parse_type->builtin_short; }
        |       SHORT SIGNED_KEYWORD INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_short; }
+                       { $$ = parse_type->builtin_short; }
        |       SHORT SIGNED_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_short; }
+                       { $$ = parse_type->builtin_short; }
        |       UNSIGNED SHORT INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_short; }
+                       { $$ = parse_type->builtin_unsigned_short; }
        |       SHORT UNSIGNED 
-                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_short; }
+                       { $$ = parse_type->builtin_unsigned_short; }
        |       SHORT UNSIGNED INT_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_short; }
+                       { $$ = parse_type->builtin_unsigned_short; }
        |       DOUBLE_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_double; }
+                       { $$ = parse_type->builtin_double; }
        |       LONG DOUBLE_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_long_double; }
+                       { $$ = parse_type->builtin_long_double; }
        |       STRUCT name
                        { $$ = lookup_struct (copy_name ($2),
                                              expression_context_block); }
@@ -872,11 +942,11 @@ typebase  /* Implements (approximately): (type-qualifier)* type-specifier */
        |       UNSIGNED typename
                        { $$ = lookup_unsigned_typename (TYPE_NAME($2.type)); }
        |       UNSIGNED
-                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_int; }
+                       { $$ = parse_type->builtin_unsigned_int; }
        |       SIGNED_KEYWORD typename
                        { $$ = lookup_signed_typename (TYPE_NAME($2.type)); }
        |       SIGNED_KEYWORD
-                       { $$ = builtin_type (current_gdbarch)->builtin_int; }
+                       { $$ = parse_type->builtin_int; }
                 /* It appears that this rule for templates is never
                    reduced; template recognition happens by lookahead
                    in the token processing code in yylex. */         
@@ -966,19 +1036,19 @@ typename:        TYPENAME
                {
                  $$.stoken.ptr = "int";
                  $$.stoken.length = 3;
-                 $$.type = builtin_type (current_gdbarch)->builtin_int;
+                 $$.type = parse_type->builtin_int;
                }
        |       LONG
                {
                  $$.stoken.ptr = "long";
                  $$.stoken.length = 4;
-                 $$.type = builtin_type (current_gdbarch)->builtin_long;
+                 $$.type = parse_type->builtin_long;
                }
        |       SHORT
                {
                  $$.stoken.ptr = "short";
                  $$.stoken.length = 5;
-                 $$.type = builtin_type (current_gdbarch)->builtin_short;
+                 $$.type = parse_type->builtin_short;
                }
        ;
 
@@ -1070,44 +1140,72 @@ parse_number (p, len, parsed_float, putithere)
   if (parsed_float)
     {
       /* It's a float since it contains a point or an exponent.  */
-      char c;
-      int num = 0;     /* number of tokens scanned by scanf */
-      char saved_char = p[len];
+      char *s;
+      int num; /* number of tokens scanned by scanf */
+      char saved_char;
 
-      p[len] = 0;      /* null-terminate the token */
-      if (sizeof (putithere->typed_val_float.dval) <= sizeof (float))
-       num = sscanf (p, "%g%c", (float *) &putithere->typed_val_float.dval,&c);
-      else if (sizeof (putithere->typed_val_float.dval) <= sizeof (double))
-       num = sscanf (p, "%lg%c", (double *) &putithere->typed_val_float.dval,&c);
-      else
+      /* If it ends at "df", "dd" or "dl", take it as type of decimal floating
+         point.  Return DECFLOAT.  */
+
+      if (len >= 2 && p[len - 2] == 'd' && p[len - 1] == 'f')
        {
-#ifdef SCANF_HAS_LONG_DOUBLE
-         num = sscanf (p, "%Lg%c", &putithere->typed_val_float.dval,&c);
-#else
-         /* Scan it into a double, then assign it to the long double.
-            This at least wins with values representable in the range
-            of doubles. */
-         double temp;
-         num = sscanf (p, "%lg%c", &temp,&c);
-         putithere->typed_val_float.dval = temp;
-#endif
+         p[len - 2] = '\0';
+         putithere->typed_val_decfloat.type
+           = parse_type->builtin_decfloat;
+         decimal_from_string (putithere->typed_val_decfloat.val, 4, p);
+         p[len - 2] = 'd';
+         return DECFLOAT;
+       }
+
+      if (len >= 2 && p[len - 2] == 'd' && p[len - 1] == 'd')
+       {
+         p[len - 2] = '\0';
+         putithere->typed_val_decfloat.type
+           = parse_type->builtin_decdouble;
+         decimal_from_string (putithere->typed_val_decfloat.val, 8, p);
+         p[len - 2] = 'd';
+         return DECFLOAT;
+       }
+
+      if (len >= 2 && p[len - 2] == 'd' && p[len - 1] == 'l')
+       {
+         p[len - 2] = '\0';
+         putithere->typed_val_decfloat.type
+           = parse_type->builtin_declong;
+         decimal_from_string (putithere->typed_val_decfloat.val, 16, p);
+         p[len - 2] = 'd';
+         return DECFLOAT;
        }
+
+      s = malloc (len);
+      saved_char = p[len];
+      p[len] = 0;      /* null-terminate the token */
+      num = sscanf (p, "%" DOUBLEST_SCAN_FORMAT "%s",
+                   &putithere->typed_val_float.dval, s);
       p[len] = saved_char;     /* restore the input stream */
-      if (num != 1)            /* check scanf found ONLY a float ... */
-       return ERROR;
-      /* See if it has `f' or `l' suffix (float or long double).  */
-
-      c = tolower (p[len - 1]);
-
-      if (c == 'f')
-       putithere->typed_val_float.type = builtin_type (current_gdbarch)->builtin_float;
-      else if (c == 'l')
-       putithere->typed_val_float.type = builtin_type (current_gdbarch)->builtin_long_double;
-      else if (isdigit (c) || c == '.')
-       putithere->typed_val_float.type = builtin_type (current_gdbarch)->builtin_double;
-      else
-       return ERROR;
 
+      if (num == 1)
+       putithere->typed_val_float.type = 
+         parse_type->builtin_double;
+
+      if (num == 2 )
+       {
+         /* See if it has any float suffix: 'f' for float, 'l' for long 
+            double.  */
+         if (!strcasecmp (s, "f"))
+           putithere->typed_val_float.type = 
+             parse_type->builtin_float;
+         else if (!strcasecmp (s, "l"))
+           putithere->typed_val_float.type = 
+             parse_type->builtin_long_double;
+         else
+           {
+             free (s);
+             return ERROR;
+           }
+       }
+
+      free (s);
       return FLOAT;
     }
 
@@ -1203,16 +1301,16 @@ parse_number (p, len, parsed_float, putithere)
      shift it right and see whether anything remains.  Note that we
      can't shift sizeof (LONGEST) * HOST_CHAR_BIT bits or more in one
      operation, because many compilers will warn about such a shift
-     (which always produces a zero result).  Sometimes TARGET_INT_BIT
-     or TARGET_LONG_BIT will be that big, sometimes not.  To deal with
+     (which always produces a zero result).  Sometimes gdbarch_int_bit
+     or gdbarch_long_bit will be that big, sometimes not.  To deal with
      the case where it is we just always shift the value more than
      once, with fewer bits each time.  */
 
   un = (ULONGEST)n >> 2;
   if (long_p == 0
-      && (un >> (TARGET_INT_BIT - 2)) == 0)
+      && (un >> (gdbarch_int_bit (parse_gdbarch) - 2)) == 0)
     {
-      high_bit = ((ULONGEST)1) << (TARGET_INT_BIT-1);
+      high_bit = ((ULONGEST)1) << (gdbarch_int_bit (parse_gdbarch) - 1);
 
       /* A large decimal (not hex or octal) constant (between INT_MAX
         and UINT_MAX) is a long or unsigned long, according to ANSI,
@@ -1220,27 +1318,28 @@ parse_number (p, len, parsed_float, putithere)
         int.  This probably should be fixed.  GCC gives a warning on
         such constants.  */
 
-      unsigned_type = builtin_type (current_gdbarch)->builtin_unsigned_int;
-      signed_type = builtin_type (current_gdbarch)->builtin_int;
+      unsigned_type = parse_type->builtin_unsigned_int;
+      signed_type = parse_type->builtin_int;
     }
   else if (long_p <= 1
-          && (un >> (TARGET_LONG_BIT - 2)) == 0)
+          && (un >> (gdbarch_long_bit (parse_gdbarch) - 2)) == 0)
     {
-      high_bit = ((ULONGEST)1) << (TARGET_LONG_BIT-1);
-      unsigned_type = builtin_type (current_gdbarch)->builtin_unsigned_long;
-      signed_type = builtin_type (current_gdbarch)->builtin_long;
+      high_bit = ((ULONGEST)1) << (gdbarch_long_bit (parse_gdbarch) - 1);
+      unsigned_type = parse_type->builtin_unsigned_long;
+      signed_type = parse_type->builtin_long;
     }
   else
     {
       int shift;
-      if (sizeof (ULONGEST) * HOST_CHAR_BIT < TARGET_LONG_LONG_BIT)
+      if (sizeof (ULONGEST) * HOST_CHAR_BIT 
+         < gdbarch_long_long_bit (parse_gdbarch))
        /* A long long does not fit in a LONGEST.  */
        shift = (sizeof (ULONGEST) * HOST_CHAR_BIT - 1);
       else
-       shift = (TARGET_LONG_LONG_BIT - 1);
+       shift = (gdbarch_long_long_bit (parse_gdbarch) - 1);
       high_bit = (ULONGEST) 1 << shift;
-      unsigned_type = builtin_type (current_gdbarch)->builtin_unsigned_long_long;
-      signed_type = builtin_type (current_gdbarch)->builtin_long_long;
+      unsigned_type = parse_type->builtin_unsigned_long_long;
+      signed_type = parse_type->builtin_long_long;
     }
 
    putithere->typed_val_int.val = n;
@@ -1297,6 +1396,16 @@ static const struct token tokentab2[] =
     {">=", GEQ, BINOP_END}
   };
 
+/* This is set if a NAME token appeared at the very end of the input
+   string, with no whitespace separating the name from the EOF.  This
+   is used only when parsing to do field name completion.  */
+static int saw_name_at_eof;
+
+/* This is set if the previously-returned token was a structure
+   operator -- either '.' or ARROW.  This is used only when parsing to
+   do field name completion.  */
+static int last_was_structop;
+
 /* Read one token, getting characters through lexptr.  */
 
 static int
@@ -1310,11 +1419,12 @@ yylex ()
   int tempbufindex;
   static char *tempbuf;
   static int tempbufsize;
-  struct symbol * sym_class = NULL;
   char * token_string = NULL;
   int class_prefix = 0;
-  int unquoted_expr;
-   
+  int saw_structop = last_was_structop;
+
+  last_was_structop = 0;
+
  retry:
 
   /* Check if this is a macro invocation that we need to expand.  */
@@ -1329,7 +1439,6 @@ yylex ()
     }
 
   prev_lexptr = lexptr;
-  unquoted_expr = 1;
 
   tokstart = lexptr;
   /* See if it is a special token of length 3.  */
@@ -1347,6 +1456,8 @@ yylex ()
       {
        lexptr += 2;
        yylval.opcode = tokentab2[i].opcode;
+       if (in_parse_field && tokentab2[i].token == ARROW)
+         last_was_structop = 1;
        return tokentab2[i].token;
       }
 
@@ -1355,6 +1466,8 @@ yylex ()
     case 0:
       /* If we were just scanning the result of a macro expansion,
          then we need to resume scanning the original text.
+        If we're parsing for field name completion, and the previous
+        token allows such completion, return a COMPLETE token.
          Otherwise, we were already scanning the original text, and
          we're really done.  */
       if (scanning_macro_expansion ())
@@ -1362,6 +1475,13 @@ yylex ()
           finished_macro_expansion ();
           goto retry;
         }
+      else if (saw_name_at_eof)
+       {
+         saw_name_at_eof = 0;
+         return COMPLETE;
+       }
+      else if (saw_structop)
+       return COMPLETE;
       else
         return 0;
 
@@ -1392,7 +1512,7 @@ yylex ()
         }
 
       yylval.typed_val_int.val = c;
-      yylval.typed_val_int.type = builtin_type (current_gdbarch)->builtin_char;
+      yylval.typed_val_int.type = parse_type->builtin_char;
 
       c = *lexptr++;
       if (c != '\'')
@@ -1401,7 +1521,6 @@ yylex ()
          if (namelen > 2)
            {
              lexptr = tokstart + namelen;
-              unquoted_expr = 0;
              if (lexptr[-1] != '\'')
                error ("Unmatched single quote.");
              namelen -= 2;
@@ -1435,7 +1554,11 @@ yylex ()
     case '.':
       /* Might be a floating point number.  */
       if (lexptr[1] < '0' || lexptr[1] > '9')
-       goto symbol;            /* Nope, must be a symbol. */
+       {
+         if (in_parse_field)
+           last_was_structop = 1;
+         goto symbol;          /* Nope, must be a symbol. */
+       }
       /* FALL THRU into number case.  */
 
     case '0':
@@ -1641,7 +1764,7 @@ yylex ()
     case 8:
       if (strncmp (tokstart, "unsigned", 8) == 0)
        return UNSIGNED;
-      if (current_language->la_language == language_cplus
+      if (parse_language->la_language == language_cplus
          && strncmp (tokstart, "template", 8) == 0)
        return TEMPLATE;
       if (strncmp (tokstart, "volatile", 8) == 0)
@@ -1658,7 +1781,7 @@ yylex ()
        return DOUBLE_KEYWORD;
       break;
     case 5:
-      if (current_language->la_language == language_cplus)
+      if (parse_language->la_language == language_cplus)
         {
           if (strncmp (tokstart, "false", 5) == 0)
             return FALSEKEYWORD;
@@ -1677,7 +1800,7 @@ yylex ()
        return ENUM;
       if (strncmp (tokstart, "long", 4) == 0)
        return LONG;
-      if (current_language->la_language == language_cplus)
+      if (parse_language->la_language == language_cplus)
           {
             if (strncmp (tokstart, "true", 4) == 0)
               return TRUEKEYWORD;
@@ -1700,30 +1823,6 @@ yylex ()
       return VARIABLE;
     }
   
-  /* Look ahead and see if we can consume more of the input
-     string to get a reasonable class/namespace spec or a
-     fully-qualified name.  This is a kludge to get around the
-     HP aCC compiler's generation of symbol names with embedded
-     colons for namespace and nested classes. */
-
-  /* NOTE: carlton/2003-09-24: I don't entirely understand the
-     HP-specific code, either here or in linespec.  Having said that,
-     I suspect that we're actually moving towards their model: we want
-     symbols whose names are fully qualified, which matches the
-     description above.  */
-  if (unquoted_expr)
-    {
-      /* Only do it if not inside single quotes */ 
-      sym_class = parse_nested_classes_for_hpacc (yylval.sval.ptr, yylval.sval.length,
-                                                  &token_string, &class_prefix, &lexptr);
-      if (sym_class)
-        {
-          /* Replace the current token with the bigger one we found */ 
-          yylval.sval.ptr = token_string;
-          yylval.sval.length = strlen (token_string);
-        }
-    }
-  
   /* Use token-type BLOCKNAME for symbols that happen to be defined as
      functions or symtabs.  If this is not so, then ...
      Use token-type TYPENAME for symbols that happen to be defined
@@ -1737,9 +1836,8 @@ yylex ()
 
     sym = lookup_symbol (tmp, expression_context_block,
                         VAR_DOMAIN,
-                        current_language->la_language == language_cplus
-                        ? &is_a_field_of_this : (int *) NULL,
-                        (struct symtab **) NULL);
+                        parse_language->la_language == language_cplus
+                        ? &is_a_field_of_this : (int *) NULL);
     /* Call lookup_symtab, not lookup_partial_symtab, in case there are
        no psymtabs (coff, xcoff, or some future change to blow away the
        psymtabs once once symbols are read).  */
@@ -1771,8 +1869,8 @@ yylex ()
          return TYPENAME;
         }
     yylval.tsym.type
-      = language_lookup_primitive_type_by_name (current_language,
-                                               current_gdbarch, tmp);
+      = language_lookup_primitive_type_by_name (parse_language,
+                                               parse_gdbarch, tmp);
     if (yylval.tsym.type != NULL)
       return TYPENAME;
 
@@ -1796,10 +1894,20 @@ yylex ()
     /* Any other kind of symbol */
     yylval.ssym.sym = sym;
     yylval.ssym.is_a_field_of_this = is_a_field_of_this;
+    if (in_parse_field && *lexptr == '\0')
+      saw_name_at_eof = 1;
     return NAME;
   }
 }
 
+int
+c_parse (void)
+{
+  last_was_structop = 0;
+  saw_name_at_eof = 0;
+  return yyparse ();
+}
+
 void
 yyerror (msg)
      char *msg;
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