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/* GNU m4 -- A simple macro processor
Copyright (C) 1989, 90, 91, 92, 93, 94, 98 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
struct token_data {
token_data_type type;
union {
struct {
char *text;
#ifdef ENABLE_CHANGEWORD
char *original_text;
#endif
} u_t;
struct {
builtin_func *func;
boolean traced;
} u_f;
} u;
};
#define TOKEN_DATA_TYPE(Td) ((Td)->type)
#define TOKEN_DATA_TEXT(Td) ((Td)->u.u_t.text)
#ifdef ENABLE_CHANGEWORD
# define TOKEN_DATA_ORIG_TEXT(Td) ((Td)->u.u_t.original_text)
#endif
#define TOKEN_DATA_FUNC(Td) ((Td)->u.u_f.func)
#define TOKEN_DATA_FUNC_TRACED(Td) ((Td)->u.u_f.traced)
/* Redefine the exported function using macro to this faster
macro based version for internal use by the m4 code. */
#undef M4ARG
#define M4ARG(i) (argc > (i) ? TOKEN_DATA_TEXT (argv[i]) : "")
struct symbol
{
struct symbol *next;
boolean traced;
boolean shadowed;
boolean macro_args;
boolean blind_no_args;
char *name;
token_data data;
};
#define SYMBOL_NEXT(S) ((S)->next)
#define SYMBOL_TRACED(S) ((S)->traced)
#define SYMBOL_SHADOWED(S) ((S)->shadowed)
#define SYMBOL_MACRO_ARGS(S) ((S)->macro_args)
#define SYMBOL_BLIND_NO_ARGS(S) ((S)->blind_no_args)
#define SYMBOL_NAME(S) ((S)->name)
#define SYMBOL_TYPE(S) (TOKEN_DATA_TYPE (&(S)->data))
#define SYMBOL_TEXT(S) (TOKEN_DATA_TEXT (&(S)->data))
#define SYMBOL_FUNC(S) (TOKEN_DATA_FUNC (&(S)->data))
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