Automatic date update in version.in
[platform/upstream/binutils.git] / gdb / p-exp.y
index 21c3dbb..0aa6f20 100644 (file)
@@ -1,6 +1,5 @@
 /* YACC parser for Pascal expressions, for GDB.
-   Copyright (C) 2000, 2006, 2007, 2008, 2009, 2010, 2011
-   Free Software Foundation, Inc.
+   Copyright (C) 2000-2014 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -45,7 +44,6 @@
 %{
 
 #include "defs.h"
-#include "gdb_string.h"
 #include <ctype.h>
 #include "expression.h"
 #include "value.h"
@@ -56,8 +54,9 @@
 #include "symfile.h" /* Required by objfiles.h.  */
 #include "objfiles.h" /* For have_full_symbols and have_partial_symbols.  */
 #include "block.h"
+#include "completer.h"
 
-#define parse_type builtin_type (parse_gdbarch)
+#define parse_type(ps) builtin_type (parse_gdbarch (ps))
 
 /* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
    as well as gratuitiously global symbol names, so we can have multiple
    generators need to be fixed instead of adding those names to this list.  */
 
 #define        yymaxdepth pascal_maxdepth
-#define        yyparse pascal_parse
+#define        yyparse pascal_parse_internal
 #define        yylex   pascal_lex
 #define        yyerror pascal_error
 #define        yylval  pascal_lval
 #define        yychar  pascal_char
 #define        yydebug pascal_debug
-#define        yypact  pascal_pact     
-#define        yyr1    pascal_r1                       
-#define        yyr2    pascal_r2                       
-#define        yydef   pascal_def              
-#define        yychk   pascal_chk              
-#define        yypgo   pascal_pgo              
+#define        yypact  pascal_pact
+#define        yyr1    pascal_r1
+#define        yyr2    pascal_r2
+#define        yydef   pascal_def
+#define        yychk   pascal_chk
+#define        yypgo   pascal_pgo
 #define        yyact   pascal_act
 #define        yyexca  pascal_exca
 #define yyerrflag pascal_errflag
 #define yygindex pascal_yygindex
 #define yytable         pascal_yytable
 #define yycheck         pascal_yycheck
+#define yyss   pascal_yyss
+#define yysslim        pascal_yysslim
+#define yyssp  pascal_yyssp
+#define yystacksize pascal_yystacksize
+#define yyvs   pascal_yyvs
+#define yyvsp  pascal_yyvsp
 
 #ifndef YYDEBUG
 #define        YYDEBUG 1               /* Default to yydebug support */
 
 #define YYFPRINTF parser_fprintf
 
+/* The state of the parser, used internally when we are parsing the
+   expression.  */
+
+static struct parser_state *pstate = NULL;
+
 int yyparse (void);
 
 static int yylex (void);
 
-void
-yyerror (char *);
+void yyerror (char *);
 
-static char * uptok (char *, int);
+static char *uptok (const char *, int);
 %}
 
 /* Although the yacc "value" of an expression is not used,
@@ -144,7 +153,7 @@ static char * uptok (char *, int);
     struct ttype tsym;
     struct symtoken ssym;
     int voidval;
-    struct block *bval;
+    const struct block *bval;
     enum exp_opcode opcode;
     struct internalvar *ivar;
 
@@ -154,10 +163,11 @@ static char * uptok (char *, int);
 
 %{
 /* YYSTYPE gets defined by %union */
-static int
-parse_number (char *, int, int, YYSTYPE *);
+static int parse_number (struct parser_state *,
+                        const char *, int, int, YYSTYPE *);
 
 static struct type *current_type;
+static struct internalvar *intvar;
 static int leftdiv_is_integer;
 static void push_current_type (void);
 static void pop_current_type (void);
@@ -182,8 +192,9 @@ static int search_field;
    Contexts where this distinction is not important can use the
    nonterminal "name", which matches either NAME or TYPENAME.  */
 
-%token <sval> STRING 
+%token <sval> STRING
 %token <sval> FIELDNAME
+%token <voidval> COMPLETE
 %token <ssym> NAME /* BLOCKNAME defined below to give it higher precedence.  */
 %token <tsym> TYPENAME
 %type <sval> name
@@ -233,6 +244,7 @@ static int search_field;
 %%
 
 start   :      { current_type = NULL;
+                 intvar = NULL;
                  search_field = 0;
                  leftdiv_is_integer = 0;
                }
@@ -245,82 +257,127 @@ normal_start     :
        ;
 
 type_exp:      type
-                       { write_exp_elt_opcode(OP_TYPE);
-                         write_exp_elt_type($1);
-                         write_exp_elt_opcode(OP_TYPE);
+                       { write_exp_elt_opcode (pstate, OP_TYPE);
+                         write_exp_elt_type (pstate, $1);
+                         write_exp_elt_opcode (pstate, OP_TYPE);
                          current_type = $1; } ;
 
 /* Expressions, including the comma operator.  */
 exp1   :       exp
        |       exp1 ',' exp
-                       { write_exp_elt_opcode (BINOP_COMMA); }
+                       { write_exp_elt_opcode (pstate, BINOP_COMMA); }
        ;
 
 /* Expressions, not including the comma operator.  */
 exp    :       exp '^'   %prec UNARY
-                       { write_exp_elt_opcode (UNOP_IND);
-                         if (current_type) 
+                       { write_exp_elt_opcode (pstate, UNOP_IND);
+                         if (current_type)
                            current_type = TYPE_TARGET_TYPE (current_type); }
        ;
 
 exp    :       '@' exp    %prec UNARY
-                       { write_exp_elt_opcode (UNOP_ADDR); 
+                       { write_exp_elt_opcode (pstate, UNOP_ADDR);
                          if (current_type)
                            current_type = TYPE_POINTER_TYPE (current_type); }
        ;
 
 exp    :       '-' exp    %prec UNARY
-                       { write_exp_elt_opcode (UNOP_NEG); }
+                       { write_exp_elt_opcode (pstate, UNOP_NEG); }
        ;
 
 exp    :       NOT exp    %prec UNARY
-                       { write_exp_elt_opcode (UNOP_LOGICAL_NOT); }
+                       { write_exp_elt_opcode (pstate, UNOP_LOGICAL_NOT); }
        ;
 
 exp    :       INCREMENT '(' exp ')'   %prec UNARY
-                       { write_exp_elt_opcode (UNOP_PREINCREMENT); }
+                       { write_exp_elt_opcode (pstate, UNOP_PREINCREMENT); }
        ;
 
 exp    :       DECREMENT  '(' exp ')'   %prec UNARY
-                       { write_exp_elt_opcode (UNOP_PREDECREMENT); }
+                       { write_exp_elt_opcode (pstate, UNOP_PREDECREMENT); }
+       ;
+
+
+field_exp      :       exp '.' %prec UNARY
+                       { search_field = 1; }
+       ;
+
+exp    :       field_exp FIELDNAME
+                       { write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
+                         write_exp_string (pstate, $2);
+                         write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
+                         search_field = 0;
+                         if (current_type)
+                           {
+                             while (TYPE_CODE (current_type)
+                                    == TYPE_CODE_PTR)
+                               current_type =
+                                 TYPE_TARGET_TYPE (current_type);
+                             current_type = lookup_struct_elt_type (
+                               current_type, $2.ptr, 0);
+                           }
+                        }
        ;
 
-exp    :       exp '.' { search_field = 1; } 
-               FIELDNAME 
-               /* name */
-                       { write_exp_elt_opcode (STRUCTOP_STRUCT);
-                         write_exp_string ($4); 
-                         write_exp_elt_opcode (STRUCTOP_STRUCT);
-                         search_field = 0; 
+
+exp    :       field_exp name
+                       { write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
+                         write_exp_string (pstate, $2);
+                         write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
+                         search_field = 0;
                          if (current_type)
-                           { while (TYPE_CODE (current_type) == TYPE_CODE_PTR)
-                               current_type = TYPE_TARGET_TYPE (current_type);
+                           {
+                             while (TYPE_CODE (current_type)
+                                    == TYPE_CODE_PTR)
+                               current_type =
+                                 TYPE_TARGET_TYPE (current_type);
                              current_type = lookup_struct_elt_type (
-                               current_type, $4.ptr, 0); };
-                        } ; 
+                               current_type, $2.ptr, 0);
+                           }
+                       }
+       ;
+exp    :       field_exp  name COMPLETE
+                       { mark_struct_expression (pstate);
+                         write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
+                         write_exp_string (pstate, $2);
+                         write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); }
+       ;
+exp    :       field_exp COMPLETE
+                       { struct stoken s;
+                         mark_struct_expression (pstate);
+                         write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
+                         s.ptr = "";
+                         s.length = 0;
+                         write_exp_string (pstate, s);
+                         write_exp_elt_opcode (pstate, STRUCTOP_STRUCT); }
+       ;
+
 exp    :       exp '['
                        /* We need to save the current_type value.  */
-                       { char *arrayname; 
+                       { const char *arrayname;
                          int arrayfieldindex;
                          arrayfieldindex = is_pascal_string_type (
                                current_type, NULL, NULL,
-                               NULL, NULL, &arrayname); 
-                         if (arrayfieldindex) 
+                               NULL, NULL, &arrayname);
+                         if (arrayfieldindex)
                            {
                              struct stoken stringsval;
-                             stringsval.ptr = alloca (strlen (arrayname) + 1);
+                             char *buf;
+
+                             buf = alloca (strlen (arrayname) + 1);
+                             stringsval.ptr = buf;
                              stringsval.length = strlen (arrayname);
-                             strcpy (stringsval.ptr, arrayname);
+                             strcpy (buf, arrayname);
                              current_type = TYPE_FIELD_TYPE (current_type,
-                               arrayfieldindex - 1); 
-                             write_exp_elt_opcode (STRUCTOP_STRUCT);
-                             write_exp_string (stringsval); 
-                             write_exp_elt_opcode (STRUCTOP_STRUCT);
+                               arrayfieldindex - 1);
+                             write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
+                             write_exp_string (pstate, stringsval);
+                             write_exp_elt_opcode (pstate, STRUCTOP_STRUCT);
                            }
                          push_current_type ();  }
                exp1 ']'
                        { pop_current_type ();
-                         write_exp_elt_opcode (BINOP_SUBSCRIPT);
+                         write_exp_elt_opcode (pstate, BINOP_SUBSCRIPT);
                          if (current_type)
                            current_type = TYPE_TARGET_TYPE (current_type); }
        ;
@@ -331,9 +388,10 @@ exp        :       exp '('
                        { push_current_type ();
                          start_arglist (); }
                arglist ')'     %prec ARROW
-                       { write_exp_elt_opcode (OP_FUNCALL);
-                         write_exp_elt_longcst ((LONGEST) end_arglist ());
-                         write_exp_elt_opcode (OP_FUNCALL); 
+                       { write_exp_elt_opcode (pstate, OP_FUNCALL);
+                         write_exp_elt_longcst (pstate,
+                                                (LONGEST) end_arglist ());
+                         write_exp_elt_opcode (pstate, OP_FUNCALL);
                          pop_current_type ();
                          if (current_type)
                            current_type = TYPE_TARGET_TYPE (current_type);
@@ -354,11 +412,11 @@ exp       :       type '(' exp ')' %prec UNARY
                              if ((TYPE_CODE (current_type) == TYPE_CODE_PTR)
                                  && (TYPE_CODE (TYPE_TARGET_TYPE (current_type)) == TYPE_CODE_CLASS)
                                  && (TYPE_CODE ($1) == TYPE_CODE_CLASS))
-                               write_exp_elt_opcode (UNOP_IND);
+                               write_exp_elt_opcode (pstate, UNOP_IND);
                            }
-                         write_exp_elt_opcode (UNOP_CAST);
-                         write_exp_elt_type ($1);
-                         write_exp_elt_opcode (UNOP_CAST); 
+                         write_exp_elt_opcode (pstate, UNOP_CAST);
+                         write_exp_elt_type (pstate, $1);
+                         write_exp_elt_opcode (pstate, UNOP_CAST);
                          current_type = $1; }
        ;
 
@@ -369,200 +427,226 @@ exp     :       '(' exp1 ')'
 /* Binary operators in order of decreasing precedence.  */
 
 exp    :       exp '*' exp
-                       { write_exp_elt_opcode (BINOP_MUL); }
+                       { write_exp_elt_opcode (pstate, BINOP_MUL); }
        ;
 
 exp    :       exp '/' {
                          if (current_type && is_integral_type (current_type))
                            leftdiv_is_integer = 1;
-                       } 
+                       }
                exp
-                       { 
+                       {
                          if (leftdiv_is_integer && current_type
                              && is_integral_type (current_type))
                            {
-                             write_exp_elt_opcode (UNOP_CAST);
-                             write_exp_elt_type (parse_type->builtin_long_double);
-                             current_type = parse_type->builtin_long_double;
-                             write_exp_elt_opcode (UNOP_CAST);
+                             write_exp_elt_opcode (pstate, UNOP_CAST);
+                             write_exp_elt_type (pstate,
+                                                 parse_type (pstate)
+                                                 ->builtin_long_double);
+                             current_type
+                               = parse_type (pstate)->builtin_long_double;
+                             write_exp_elt_opcode (pstate, UNOP_CAST);
                              leftdiv_is_integer = 0;
                            }
 
-                         write_exp_elt_opcode (BINOP_DIV); 
+                         write_exp_elt_opcode (pstate, BINOP_DIV);
                        }
        ;
 
 exp    :       exp DIV exp
-                       { write_exp_elt_opcode (BINOP_INTDIV); }
+                       { write_exp_elt_opcode (pstate, BINOP_INTDIV); }
        ;
 
 exp    :       exp MOD exp
-                       { write_exp_elt_opcode (BINOP_REM); }
+                       { write_exp_elt_opcode (pstate, BINOP_REM); }
        ;
 
 exp    :       exp '+' exp
-                       { write_exp_elt_opcode (BINOP_ADD); }
+                       { write_exp_elt_opcode (pstate, BINOP_ADD); }
        ;
 
 exp    :       exp '-' exp
-                       { write_exp_elt_opcode (BINOP_SUB); }
+                       { write_exp_elt_opcode (pstate, BINOP_SUB); }
        ;
 
 exp    :       exp LSH exp
-                       { write_exp_elt_opcode (BINOP_LSH); }
+                       { write_exp_elt_opcode (pstate, BINOP_LSH); }
        ;
 
 exp    :       exp RSH exp
-                       { write_exp_elt_opcode (BINOP_RSH); }
+                       { write_exp_elt_opcode (pstate, BINOP_RSH); }
        ;
 
 exp    :       exp '=' exp
-                       { write_exp_elt_opcode (BINOP_EQUAL); 
-                         current_type = parse_type->builtin_bool;
+                       { write_exp_elt_opcode (pstate, BINOP_EQUAL);
+                         current_type = parse_type (pstate)->builtin_bool;
                        }
        ;
 
 exp    :       exp NOTEQUAL exp
-                       { write_exp_elt_opcode (BINOP_NOTEQUAL); 
-                         current_type = parse_type->builtin_bool;
+                       { write_exp_elt_opcode (pstate, BINOP_NOTEQUAL);
+                         current_type = parse_type (pstate)->builtin_bool;
                        }
        ;
 
 exp    :       exp LEQ exp
-                       { write_exp_elt_opcode (BINOP_LEQ); 
-                         current_type = parse_type->builtin_bool;
+                       { write_exp_elt_opcode (pstate, BINOP_LEQ);
+                         current_type = parse_type (pstate)->builtin_bool;
                        }
        ;
 
 exp    :       exp GEQ exp
-                       { write_exp_elt_opcode (BINOP_GEQ); 
-                         current_type = parse_type->builtin_bool;
+                       { write_exp_elt_opcode (pstate, BINOP_GEQ);
+                         current_type = parse_type (pstate)->builtin_bool;
                        }
        ;
 
 exp    :       exp '<' exp
-                       { write_exp_elt_opcode (BINOP_LESS); 
-                         current_type = parse_type->builtin_bool;
+                       { write_exp_elt_opcode (pstate, BINOP_LESS);
+                         current_type = parse_type (pstate)->builtin_bool;
                        }
        ;
 
 exp    :       exp '>' exp
-                       { write_exp_elt_opcode (BINOP_GTR); 
-                         current_type = parse_type->builtin_bool;
+                       { write_exp_elt_opcode (pstate, BINOP_GTR);
+                         current_type = parse_type (pstate)->builtin_bool;
                        }
        ;
 
 exp    :       exp ANDAND exp
-                       { write_exp_elt_opcode (BINOP_BITWISE_AND); }
+                       { write_exp_elt_opcode (pstate, BINOP_BITWISE_AND); }
        ;
 
 exp    :       exp XOR exp
-                       { write_exp_elt_opcode (BINOP_BITWISE_XOR); }
+                       { write_exp_elt_opcode (pstate, BINOP_BITWISE_XOR); }
        ;
 
 exp    :       exp OR exp
-                       { write_exp_elt_opcode (BINOP_BITWISE_IOR); }
+                       { write_exp_elt_opcode (pstate, BINOP_BITWISE_IOR); }
        ;
 
 exp    :       exp ASSIGN exp
-                       { write_exp_elt_opcode (BINOP_ASSIGN); }
+                       { write_exp_elt_opcode (pstate, BINOP_ASSIGN); }
        ;
 
 exp    :       TRUEKEYWORD
-                       { write_exp_elt_opcode (OP_BOOL);
-                         write_exp_elt_longcst ((LONGEST) $1);
-                         current_type = parse_type->builtin_bool;
-                         write_exp_elt_opcode (OP_BOOL); }
+                       { write_exp_elt_opcode (pstate, OP_BOOL);
+                         write_exp_elt_longcst (pstate, (LONGEST) $1);
+                         current_type = parse_type (pstate)->builtin_bool;
+                         write_exp_elt_opcode (pstate, OP_BOOL); }
        ;
 
 exp    :       FALSEKEYWORD
-                       { write_exp_elt_opcode (OP_BOOL);
-                         write_exp_elt_longcst ((LONGEST) $1);
-                         current_type = parse_type->builtin_bool;
-                         write_exp_elt_opcode (OP_BOOL); }
+                       { write_exp_elt_opcode (pstate, OP_BOOL);
+                         write_exp_elt_longcst (pstate, (LONGEST) $1);
+                         current_type = parse_type (pstate)->builtin_bool;
+                         write_exp_elt_opcode (pstate, OP_BOOL); }
        ;
 
 exp    :       INT
-                       { write_exp_elt_opcode (OP_LONG);
-                         write_exp_elt_type ($1.type);
+                       { write_exp_elt_opcode (pstate, OP_LONG);
+                         write_exp_elt_type (pstate, $1.type);
                          current_type = $1.type;
-                         write_exp_elt_longcst ((LONGEST)($1.val));
-                         write_exp_elt_opcode (OP_LONG); }
+                         write_exp_elt_longcst (pstate, (LONGEST)($1.val));
+                         write_exp_elt_opcode (pstate, OP_LONG); }
        ;
 
 exp    :       NAME_OR_INT
                        { YYSTYPE val;
-                         parse_number ($1.stoken.ptr,
+                         parse_number (pstate, $1.stoken.ptr,
                                        $1.stoken.length, 0, &val);
-                         write_exp_elt_opcode (OP_LONG);
-                         write_exp_elt_type (val.typed_val_int.type);
+                         write_exp_elt_opcode (pstate, OP_LONG);
+                         write_exp_elt_type (pstate, val.typed_val_int.type);
                          current_type = val.typed_val_int.type;
-                         write_exp_elt_longcst ((LONGEST)
+                         write_exp_elt_longcst (pstate, (LONGEST)
                                                 val.typed_val_int.val);
-                         write_exp_elt_opcode (OP_LONG);
+                         write_exp_elt_opcode (pstate, OP_LONG);
                        }
        ;
 
 
 exp    :       FLOAT
-                       { write_exp_elt_opcode (OP_DOUBLE);
-                         write_exp_elt_type ($1.type);
+                       { write_exp_elt_opcode (pstate, OP_DOUBLE);
+                         write_exp_elt_type (pstate, $1.type);
                          current_type = $1.type;
-                         write_exp_elt_dblcst ($1.dval);
-                         write_exp_elt_opcode (OP_DOUBLE); }
+                         write_exp_elt_dblcst (pstate, $1.dval);
+                         write_exp_elt_opcode (pstate, OP_DOUBLE); }
        ;
 
 exp    :       variable
        ;
 
 exp    :       VARIABLE
-                       /* Already written by write_dollar_variable.  */
-       ;
+                       /* Already written by write_dollar_variable.
+                          Handle current_type.  */
+                       {  if (intvar) {
+                            struct value * val, * mark;
+
+                            mark = value_mark ();
+                            val = value_of_internalvar (parse_gdbarch (pstate),
+                                                        intvar);
+                            current_type = value_type (val);
+                            value_release_to_mark (mark);
+                          }
+                       }
+       ;
 
 exp    :       SIZEOF '(' type ')'     %prec UNARY
-                       { write_exp_elt_opcode (OP_LONG);
-                         write_exp_elt_type (parse_type->builtin_int);
+                       { write_exp_elt_opcode (pstate, OP_LONG);
+                         write_exp_elt_type (pstate,
+                                           parse_type (pstate)->builtin_int);
+                         current_type = parse_type (pstate)->builtin_int;
                          CHECK_TYPEDEF ($3);
-                         write_exp_elt_longcst ((LONGEST) TYPE_LENGTH ($3));
-                         write_exp_elt_opcode (OP_LONG); }
+                         write_exp_elt_longcst (pstate,
+                                                (LONGEST) TYPE_LENGTH ($3));
+                         write_exp_elt_opcode (pstate, OP_LONG); }
        ;
 
 exp    :       SIZEOF  '(' exp ')'      %prec UNARY
-                       { write_exp_elt_opcode (UNOP_SIZEOF); }
-       
+                       { write_exp_elt_opcode (pstate, UNOP_SIZEOF);
+                         current_type = parse_type (pstate)->builtin_int; }
+
 exp    :       STRING
                        { /* 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.
                             There is no such thing in C as a completely empty
                             string.  */
-                         char *sp = $1.ptr; int count = $1.length;
+                         const char *sp = $1.ptr; int count = $1.length;
+
                          while (count-- > 0)
                            {
-                             write_exp_elt_opcode (OP_LONG);
-                             write_exp_elt_type (parse_type->builtin_char);
-                             write_exp_elt_longcst ((LONGEST)(*sp++));
-                             write_exp_elt_opcode (OP_LONG);
+                             write_exp_elt_opcode (pstate, OP_LONG);
+                             write_exp_elt_type (pstate,
+                                                 parse_type (pstate)
+                                                 ->builtin_char);
+                             write_exp_elt_longcst (pstate,
+                                                    (LONGEST) (*sp++));
+                             write_exp_elt_opcode (pstate, OP_LONG);
                            }
-                         write_exp_elt_opcode (OP_LONG);
-                         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 (pstate, OP_LONG);
+                         write_exp_elt_type (pstate,
+                                             parse_type (pstate)
+                                             ->builtin_char);
+                         write_exp_elt_longcst (pstate, (LONGEST)'\0');
+                         write_exp_elt_opcode (pstate, OP_LONG);
+                         write_exp_elt_opcode (pstate, OP_ARRAY);
+                         write_exp_elt_longcst (pstate, (LONGEST) 0);
+                         write_exp_elt_longcst (pstate,
+                                                (LONGEST) ($1.length));
+                         write_exp_elt_opcode (pstate, OP_ARRAY); }
        ;
 
 /* Object pascal  */
 exp    :       THIS
-                       { 
+                       {
                          struct value * this_val;
                          struct type * this_type;
-                         write_exp_elt_opcode (OP_THIS);
-                         write_exp_elt_opcode (OP_THIS); 
+                         write_exp_elt_opcode (pstate, OP_THIS);
+                         write_exp_elt_opcode (pstate, OP_THIS);
                          /* We need type of this.  */
-                         this_val = value_of_this (0); 
+                         this_val
+                           = value_of_this_silent (parse_language (pstate));
                          if (this_val)
                            this_type = value_type (this_val);
                          else
@@ -572,10 +656,10 @@ exp       :       THIS
                              if (TYPE_CODE (this_type) == TYPE_CODE_PTR)
                                {
                                  this_type = TYPE_TARGET_TYPE (this_type);
-                                 write_exp_elt_opcode (UNOP_IND);
+                                 write_exp_elt_opcode (pstate, UNOP_IND);
                                }
                            }
-               
+
                          current_type = this_type;
                        }
        ;
@@ -594,7 +678,7 @@ block       :       BLOCKNAME
                                $$ = BLOCKVECTOR_BLOCK (BLOCKVECTOR (tem),
                                                        STATIC_BLOCK);
                              else
-                               error ("No file or function \"%s\".",
+                               error (_("No file or function \"%s\"."),
                                       copy_name ($1.stoken));
                            }
                        }
@@ -603,9 +687,9 @@ block       :       BLOCKNAME
 block  :       block COLONCOLON name
                        { struct symbol *tem
                            = lookup_symbol (copy_name ($3), $1,
-                                            VAR_DOMAIN, (int *) NULL);
+                                            VAR_DOMAIN, NULL);
                          if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK)
-                           error ("No function \"%s\" in specified context.",
+                           error (_("No function \"%s\" in specified context."),
                                   copy_name ($3));
                          $$ = SYMBOL_BLOCK_VALUE (tem); }
        ;
@@ -613,16 +697,16 @@ block     :       block COLONCOLON name
 variable:      block COLONCOLON name
                        { struct symbol *sym;
                          sym = lookup_symbol (copy_name ($3), $1,
-                                              VAR_DOMAIN, (int *) NULL);
+                                              VAR_DOMAIN, NULL);
                          if (sym == 0)
-                           error ("No symbol \"%s\" in specified context.",
+                           error (_("No symbol \"%s\" in specified context."),
                                   copy_name ($3));
 
-                         write_exp_elt_opcode (OP_VAR_VALUE);
+                         write_exp_elt_opcode (pstate, OP_VAR_VALUE);
                          /* block_found is set by lookup_symbol.  */
-                         write_exp_elt_block (block_found);
-                         write_exp_elt_sym (sym);
-                         write_exp_elt_opcode (OP_VAR_VALUE); }
+                         write_exp_elt_block (pstate, block_found);
+                         write_exp_elt_sym (pstate, sym);
+                         write_exp_elt_opcode (pstate, OP_VAR_VALUE); }
        ;
 
 qualified_name:        typebase COLONCOLON name
@@ -630,13 +714,13 @@ qualified_name:   typebase COLONCOLON name
                          struct type *type = $1;
                          if (TYPE_CODE (type) != TYPE_CODE_STRUCT
                              && TYPE_CODE (type) != TYPE_CODE_UNION)
-                           error ("`%s' is not defined as an aggregate type.",
+                           error (_("`%s' is not defined as an aggregate type."),
                                   TYPE_NAME (type));
 
-                         write_exp_elt_opcode (OP_SCOPE);
-                         write_exp_elt_type (type);
-                         write_exp_string ($3);
-                         write_exp_elt_opcode (OP_SCOPE);
+                         write_exp_elt_opcode (pstate, OP_SCOPE);
+                         write_exp_elt_type (pstate, type);
+                         write_exp_string (pstate, $3);
+                         write_exp_elt_opcode (pstate, OP_SCOPE);
                        }
        ;
 
@@ -645,29 +729,29 @@ variable: qualified_name
                        {
                          char *name = copy_name ($2);
                          struct symbol *sym;
-                         struct minimal_symbol *msymbol;
+                         struct bound_minimal_symbol msymbol;
 
                          sym =
                            lookup_symbol (name, (const struct block *) NULL,
-                                          VAR_DOMAIN, (int *) NULL);
+                                          VAR_DOMAIN, NULL);
                          if (sym)
                            {
-                             write_exp_elt_opcode (OP_VAR_VALUE);
-                             write_exp_elt_block (NULL);
-                             write_exp_elt_sym (sym);
-                             write_exp_elt_opcode (OP_VAR_VALUE);
+                             write_exp_elt_opcode (pstate, OP_VAR_VALUE);
+                             write_exp_elt_block (pstate, NULL);
+                             write_exp_elt_sym (pstate, sym);
+                             write_exp_elt_opcode (pstate, OP_VAR_VALUE);
                              break;
                            }
 
-                         msymbol = lookup_minimal_symbol (name, NULL, NULL);
-                         if (msymbol != NULL)
-                           write_exp_msymbol (msymbol);
+                         msymbol = lookup_bound_minimal_symbol (name);
+                         if (msymbol.minsym != NULL)
+                           write_exp_msymbol (pstate, msymbol);
                          else if (!have_full_symbols ()
                                   && !have_partial_symbols ())
-                           error ("No symbol table is loaded.  "
-                                  "Use the \"file\" command.");
+                           error (_("No symbol table is loaded.  "
+                                  "Use the \"file\" command."));
                          else
-                           error ("No symbol \"%s\" in current context.",
+                           error (_("No symbol \"%s\" in current context."),
                                   name);
                        }
        ;
@@ -685,13 +769,13 @@ variable: name_not_typename
                                    innermost_block = block_found;
                                }
 
-                             write_exp_elt_opcode (OP_VAR_VALUE);
+                             write_exp_elt_opcode (pstate, OP_VAR_VALUE);
                              /* We want to use the selected frame, not
                                 another more inner frame which happens to
                                 be in the same block.  */
-                             write_exp_elt_block (NULL);
-                             write_exp_elt_sym (sym);
-                             write_exp_elt_opcode (OP_VAR_VALUE);
+                             write_exp_elt_block (pstate, NULL);
+                             write_exp_elt_sym (pstate, sym);
+                             write_exp_elt_opcode (pstate, OP_VAR_VALUE);
                              current_type = sym->type; }
                          else if ($1.is_a_field_of_this)
                            {
@@ -704,13 +788,14 @@ variable: name_not_typename
                                  || contained_in (block_found,
                                                   innermost_block))
                                innermost_block = block_found;
-                             write_exp_elt_opcode (OP_THIS);
-                             write_exp_elt_opcode (OP_THIS);
-                             write_exp_elt_opcode (STRUCTOP_PTR);
-                             write_exp_string ($1.stoken);
-                             write_exp_elt_opcode (STRUCTOP_PTR);
+                             write_exp_elt_opcode (pstate, OP_THIS);
+                             write_exp_elt_opcode (pstate, OP_THIS);
+                             write_exp_elt_opcode (pstate, STRUCTOP_PTR);
+                             write_exp_string (pstate, $1.stoken);
+                             write_exp_elt_opcode (pstate, STRUCTOP_PTR);
                              /* We need type of this.  */
-                             this_val = value_of_this (0); 
+                             this_val
+                               = value_of_this_silent (parse_language (pstate));
                              if (this_val)
                                this_type = value_type (this_val);
                              else
@@ -720,23 +805,23 @@ variable: name_not_typename
                                  this_type,
                                  copy_name ($1.stoken), 0);
                              else
-                               current_type = NULL; 
+                               current_type = NULL;
                            }
                          else
                            {
-                             struct minimal_symbol *msymbol;
+                             struct bound_minimal_symbol msymbol;
                              char *arg = copy_name ($1.stoken);
 
                              msymbol =
-                               lookup_minimal_symbol (arg, NULL, NULL);
-                             if (msymbol != NULL)
-                               write_exp_msymbol (msymbol);
+                               lookup_bound_minimal_symbol (arg);
+                             if (msymbol.minsym != NULL)
+                               write_exp_msymbol (pstate, msymbol);
                              else if (!have_full_symbols ()
                                       && !have_partial_symbols ())
-                               error ("No symbol table is loaded.  "
-                                      "Use the \"file\" command.");
+                               error (_("No symbol table is loaded.  "
+                                      "Use the \"file\" command."));
                              else
-                               error ("No symbol \"%s\" in current context.",
+                               error (_("No symbol \"%s\" in current context."),
                                       copy_name ($1.stoken));
                            }
                        }
@@ -799,7 +884,8 @@ name_not_typename : NAME
 /*** Needs some error checking for the float case ***/
 
 static int
-parse_number (char *p, int len, int parsed_float, YYSTYPE *putithere)
+parse_number (struct parser_state *par_state,
+             const char *p, int len, int parsed_float, YYSTYPE *putithere)
 {
   /* FIXME: Shouldn't these be unsigned?  We don't deal with negative values
      here, and we do kind of silly things like cast to unsigned.  */
@@ -824,7 +910,7 @@ parse_number (char *p, int len, int parsed_float, YYSTYPE *putithere)
 
   if (parsed_float)
     {
-      if (! parse_c_float (parse_gdbarch, p, len,
+      if (! parse_c_float (parse_gdbarch (par_state), p, len,
                           &putithere->typed_val_float.dval,
                           &putithere->typed_val_float.type))
        return ERROR;
@@ -909,9 +995,9 @@ parse_number (char *p, int len, int parsed_float, YYSTYPE *putithere)
         FIXME: This check is wrong; for example it doesn't find overflow
         on 0x123456789 when LONGEST is 32 bits.  */
       if (c != 'l' && c != 'u' && n != 0)
-       {       
+       {
          if ((unsigned_p && (ULONGEST) prevn >= (ULONGEST) n))
-           error ("Numeric constant too large.");
+           error (_("Numeric constant too large."));
        }
       prevn = n;
     }
@@ -930,9 +1016,10 @@ parse_number (char *p, int len, int parsed_float, YYSTYPE *putithere)
 
   un = (ULONGEST)n >> 2;
   if (long_p == 0
-      && (un >> (gdbarch_int_bit (parse_gdbarch) - 2)) == 0)
+      && (un >> (gdbarch_int_bit (parse_gdbarch (par_state)) - 2)) == 0)
     {
-      high_bit = ((ULONGEST)1) << (gdbarch_int_bit (parse_gdbarch) - 1);
+      high_bit
+       = ((ULONGEST)1) << (gdbarch_int_bit (parse_gdbarch (par_state)) - 1);
 
       /* A large decimal (not hex or octal) constant (between INT_MAX
         and UINT_MAX) is a long or unsigned long, according to ANSI,
@@ -940,28 +1027,29 @@ parse_number (char *p, int len, int parsed_float, YYSTYPE *putithere)
         int.  This probably should be fixed.  GCC gives a warning on
         such constants.  */
 
-      unsigned_type = parse_type->builtin_unsigned_int;
-      signed_type = parse_type->builtin_int;
+      unsigned_type = parse_type (par_state)->builtin_unsigned_int;
+      signed_type = parse_type (par_state)->builtin_int;
     }
   else if (long_p <= 1
-          && (un >> (gdbarch_long_bit (parse_gdbarch) - 2)) == 0)
+          && (un >> (gdbarch_long_bit (parse_gdbarch (par_state)) - 2)) == 0)
     {
-      high_bit = ((ULONGEST)1) << (gdbarch_long_bit (parse_gdbarch) - 1);
-      unsigned_type = parse_type->builtin_unsigned_long;
-      signed_type = parse_type->builtin_long;
+      high_bit
+       = ((ULONGEST)1) << (gdbarch_long_bit (parse_gdbarch (par_state)) - 1);
+      unsigned_type = parse_type (par_state)->builtin_unsigned_long;
+      signed_type = parse_type (par_state)->builtin_long;
     }
   else
     {
       int shift;
       if (sizeof (ULONGEST) * HOST_CHAR_BIT
-         < gdbarch_long_long_bit (parse_gdbarch))
+         < gdbarch_long_long_bit (parse_gdbarch (par_state)))
        /* A long long does not fit in a LONGEST.  */
        shift = (sizeof (ULONGEST) * HOST_CHAR_BIT - 1);
       else
-       shift = (gdbarch_long_long_bit (parse_gdbarch) - 1);
+       shift = (gdbarch_long_long_bit (parse_gdbarch (par_state)) - 1);
       high_bit = (ULONGEST) 1 << shift;
-      unsigned_type = parse_type->builtin_unsigned_long_long;
-      signed_type = parse_type->builtin_long_long;
+      unsigned_type = parse_type (par_state)->builtin_unsigned_long_long;
+      signed_type = parse_type (par_state)->builtin_long_long;
     }
 
    putithere->typed_val_int.val = n;
@@ -998,7 +1086,7 @@ push_current_type (void)
   tpnew->next = tp_top;
   tpnew->stored = current_type;
   current_type = NULL;
-  tp_top = tpnew; 
+  tp_top = tpnew;
 }
 
 static void
@@ -1044,9 +1132,8 @@ static const struct token tokentab2[] =
 
 /* Allocate uppercased var: */
 /* make an uppercased copy of tokstart.  */
-static char * uptok (tokstart, namelen)
-  char *tokstart;
-  int namelen;
+static char *
+uptok (const char *tokstart, int namelen)
 {
   int i;
   char *uptokstart = (char *)malloc(namelen+1);
@@ -1060,18 +1147,18 @@ static char * uptok (tokstart, namelen)
   uptokstart[namelen]='\0';
   return uptokstart;
 }
-/* Read one token, getting characters through lexptr.  */
 
+/* Read one token, getting characters through lexptr.  */
 
 static int
-yylex ()
+yylex (void)
 {
   int c;
   int namelen;
   unsigned int i;
-  char *tokstart;
+  const char *tokstart;
   char *uptokstart;
-  char *tokptr;
+  const char *tokptr;
   int explen, tempbufindex;
   static char *tempbuf;
   static int tempbufsize;
@@ -1082,6 +1169,7 @@ yylex ()
 
   tokstart = lexptr;
   explen = strlen (lexptr);
+
   /* See if it is a special token of length 3.  */
   if (explen > 2)
     for (i = 0; i < sizeof (tokentab3) / sizeof (tokentab3[0]); i++)
@@ -1111,7 +1199,10 @@ yylex ()
   switch (c = *tokstart)
     {
     case 0:
-      return 0;
+      if (search_field && parse_completion)
+       return COMPLETE;
+      else
+       return 0;
 
     case ' ':
     case '\t':
@@ -1126,12 +1217,12 @@ yylex ()
       lexptr++;
       c = *lexptr++;
       if (c == '\\')
-       c = parse_escape (parse_gdbarch, &lexptr);
+       c = parse_escape (parse_gdbarch (pstate), &lexptr);
       else if (c == '\'')
-       error ("Empty character constant.");
+       error (_("Empty character constant."));
 
       yylval.typed_val_int.val = c;
-      yylval.typed_val_int.type = parse_type->builtin_char;
+      yylval.typed_val_int.type = parse_type (pstate)->builtin_char;
 
       c = *lexptr++;
       if (c != '\'')
@@ -1141,13 +1232,13 @@ yylex ()
            {
              lexptr = tokstart + namelen;
              if (lexptr[-1] != '\'')
-               error ("Unmatched single quote.");
+               error (_("Unmatched single quote."));
              namelen -= 2;
               tokstart++;
               uptokstart = uptok(tokstart,namelen);
              goto tryname;
            }
-         error ("Invalid character constant.");
+         error (_("Invalid character constant."));
        }
       return INT;
 
@@ -1172,7 +1263,10 @@ yylex ()
     case '.':
       /* Might be a floating point number.  */
       if (lexptr[1] < '0' || lexptr[1] > '9')
-       goto symbol;            /* Nope, must be a symbol.  */
+       {
+         goto symbol;          /* Nope, must be a symbol.  */
+       }
+
       /* FALL THRU into number case.  */
 
     case '0':
@@ -1188,7 +1282,7 @@ yylex ()
       {
        /* It's a number.  */
        int got_dot = 0, got_e = 0, toktype;
-       char *p = tokstart;
+       const char *p = tokstart;
        int hex = input_radix > 10;
 
        if (c == '0' && (p[1] == 'x' || p[1] == 'X'))
@@ -1226,7 +1320,7 @@ yylex ()
                                  && (*p < 'A' || *p > 'Z')))
              break;
          }
-       toktype = parse_number (tokstart,
+       toktype = parse_number (pstate, tokstart,
                                p - tokstart, got_dot | got_e, &yylval);
         if (toktype == ERROR)
          {
@@ -1234,7 +1328,7 @@ yylex ()
 
            memcpy (err_copy, tokstart, p - tokstart);
            err_copy[p - tokstart] = 0;
-           error ("Invalid number \"%s\".", err_copy);
+           error (_("Invalid number \"%s\"."), err_copy);
          }
        lexptr = p;
        return toktype;
@@ -1292,8 +1386,8 @@ yylex ()
            /* Do nothing, loop will terminate.  */
            break;
          case '\\':
-           tokptr++;
-           c = parse_escape (parse_gdbarch, &tokptr);
+           ++tokptr;
+           c = parse_escape (parse_gdbarch (pstate), &tokptr);
            if (c == -1)
              {
                continue;
@@ -1307,7 +1401,7 @@ yylex ()
       } while ((*tokptr != '"') && (*tokptr != '\0'));
       if (*tokptr++ != '"')
        {
-         error ("Unterminated string in expression.");
+         error (_("Unterminated string in expression."));
        }
       tempbuf[tempbufindex] = '\0';    /* See note above.  */
       yylval.sval.ptr = tempbuf;
@@ -1319,7 +1413,7 @@ yylex ()
   if (!(c == '_' || c == '$'
        || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')))
     /* We must have come across a bad character (e.g. ';').  */
-    error ("Invalid character '%c' in expression.", c);
+    error (_("Invalid character '%c' in expression."), c);
 
   /* It's a name.  See how long it is.  */
   namelen = 0;
@@ -1414,7 +1508,7 @@ yylex ()
          static const char this_name[] = "this";
 
          if (lookup_symbol (this_name, expression_context_block,
-                            VAR_DOMAIN, (int *) NULL))
+                            VAR_DOMAIN, NULL))
            {
              free (uptokstart);
              return THIS;
@@ -1430,11 +1524,17 @@ yylex ()
 
   if (*tokstart == '$')
     {
+      char *tmp;
+
       /* $ is the normal prefix for pascal hexadecimal values
         but this conflicts with the GDB use for debugger variables
         so in expression to enter hexadecimal values
         we still need to use C syntax with 0xff  */
-      write_dollar_variable (yylval.sval);
+      write_dollar_variable (pstate, yylval.sval);
+      tmp = alloca (namelen + 1);
+      memcpy (tmp, tokstart, namelen);
+      tmp[namelen] = '\0';
+      intvar = lookup_only_internalvar (tmp + 1);
       free (uptokstart);
       return VARIABLE;
     }
@@ -1447,7 +1547,7 @@ yylex ()
   {
     char *tmp = copy_name (yylval.sval);
     struct symbol *sym;
-    int is_a_field_of_this = 0;
+    struct field_of_this_result is_a_field_of_this;
     int is_a_field = 0;
     int hextype;
 
@@ -1460,7 +1560,7 @@ yylex ()
       sym = lookup_symbol (tmp, expression_context_block,
                           VAR_DOMAIN, &is_a_field_of_this);
     /* second chance uppercased (as Free Pascal does).  */
-    if (!sym && !is_a_field_of_this && !is_a_field)
+    if (!sym && is_a_field_of_this.type == NULL && !is_a_field)
       {
        for (i = 0; i <= namelen; i++)
          {
@@ -1474,15 +1574,9 @@ yylex ()
        else
         sym = lookup_symbol (tmp, expression_context_block,
                              VAR_DOMAIN, &is_a_field_of_this);
-       if (sym || is_a_field_of_this || is_a_field)
-         for (i = 0; i <= namelen; i++)
-           {
-             if ((tokstart[i] >= 'a' && tokstart[i] <= 'z'))
-               tokstart[i] -= ('a'-'A');
-           }
       }
     /* Third chance Capitalized (as GPC does).  */
-    if (!sym && !is_a_field_of_this && !is_a_field)
+    if (!sym && is_a_field_of_this.type == NULL && !is_a_field)
       {
        for (i = 0; i <= namelen; i++)
          {
@@ -1502,29 +1596,18 @@ yylex ()
        else
         sym = lookup_symbol (tmp, expression_context_block,
                              VAR_DOMAIN, &is_a_field_of_this);
-       if (sym || is_a_field_of_this || is_a_field)
-          for (i = 0; i <= namelen; i++)
-            {
-              if (i == 0)
-                {
-                  if ((tokstart[i] >= 'a' && tokstart[i] <= 'z'))
-                    tokstart[i] -= ('a'-'A');
-                }
-              else
-                if ((tokstart[i] >= 'A' && tokstart[i] <= 'Z'))
-                  tokstart[i] -= ('A'-'a');
-            }
       }
 
     if (is_a_field)
       {
        tempbuf = (char *) realloc (tempbuf, namelen + 1);
-       strncpy (tempbuf, tokstart, namelen); tempbuf [namelen] = 0;
+       strncpy (tempbuf, tmp, namelen);
+       tempbuf [namelen] = 0;
        yylval.sval.ptr = tempbuf;
-       yylval.sval.length = namelen; 
+       yylval.sval.length = namelen;
        free (uptokstart);
        return FIELDNAME;
-      } 
+      }
     /* 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).  */
@@ -1532,7 +1615,7 @@ yylex ()
         || lookup_symtab (tmp))
       {
        yylval.ssym.sym = sym;
-       yylval.ssym.is_a_field_of_this = is_a_field_of_this;
+       yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
        free (uptokstart);
        return BLOCKNAME;
       }
@@ -1548,8 +1631,8 @@ yylex ()
             distinction) named x, then this code incorrectly thinks we
             are dealing with nested types rather than a member function.  */
 
-         char *p;
-         char *namestart;
+         const char *p;
+         const char *namestart;
          struct symbol *best_sym;
 
          /* Look ahead to detect nested types.  This probably should be
@@ -1598,7 +1681,7 @@ yylex ()
                      memcpy (tmp1, namestart, p - namestart);
                      tmp1[p - namestart] = '\0';
                      cur_sym = lookup_symbol (ncopy, expression_context_block,
-                                              VAR_DOMAIN, (int *) NULL);
+                                              VAR_DOMAIN, NULL);
                      if (cur_sym)
                        {
                          if (SYMBOL_CLASS (cur_sym) == LOC_TYPEDEF)
@@ -1627,8 +1710,8 @@ yylex ()
          return TYPENAME;
         }
     yylval.tsym.type
-      = language_lookup_primitive_type_by_name (parse_language,
-                                               parse_gdbarch, tmp);
+      = language_lookup_primitive_type_by_name (parse_language (pstate),
+                                               parse_gdbarch (pstate), tmp);
     if (yylval.tsym.type != NULL)
       {
        free (uptokstart);
@@ -1643,11 +1726,11 @@ yylex ()
             || (tokstart[0] >= 'A' && tokstart[0] < 'A' + input_radix - 10)))
       {
        YYSTYPE newlval;        /* Its value is ignored.  */
-       hextype = parse_number (tokstart, namelen, 0, &newlval);
+       hextype = parse_number (pstate, tokstart, namelen, 0, &newlval);
        if (hextype == INT)
          {
            yylval.ssym.sym = sym;
-           yylval.ssym.is_a_field_of_this = is_a_field_of_this;
+           yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
            free (uptokstart);
            return NAME_OR_INT;
          }
@@ -1656,17 +1739,31 @@ yylex ()
     free(uptokstart);
     /* Any other kind of symbol.  */
     yylval.ssym.sym = sym;
-    yylval.ssym.is_a_field_of_this = is_a_field_of_this;
+    yylval.ssym.is_a_field_of_this = is_a_field_of_this.type != NULL;
     return NAME;
   }
 }
 
+int
+pascal_parse (struct parser_state *par_state)
+{
+  int result;
+  struct cleanup *c = make_cleanup_clear_parser_state (&pstate);
+
+  /* Setting up the parser state.  */
+  gdb_assert (par_state != NULL);
+  pstate = par_state;
+
+  result = yyparse ();
+  do_cleanups (c);
+  return result;
+}
+
 void
-yyerror (msg)
-     char *msg;
+yyerror (char *msg)
 {
   if (prev_lexptr)
     lexptr = prev_lexptr;
 
-  error ("A %s in expression, near `%s'.", (msg ? msg : "error"), lexptr);
+  error (_("A %s in expression, near `%s'."), (msg ? msg : "error"), lexptr);
 }