/usr/include/pdp/pdp_symbol.h is in pd-pdp 1:0.14.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Pure Data Packet system implementation. : symbol and namespace stuff
* Copyright (c) by Tom Schouten <tom@zwizwa.be>
*
* 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 of the License, 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.
*
*/
#ifndef _PDP_SYMBOL_
#define _PDP_SYMBOL_
/* pdp's symbols are derived from pd's symbols
there is one symbol hash. each symbol has
a meaning in several name spaces.
* forth words
* type description lists (for accelerating type matching)
*/
#include "pdp_list.h"
/* the pdp symbol type */
typedef struct _pdp_symbol
{
/* next */
struct _pdp_symbol *s_next;
/* the symbol name */
char *s_name;
/* forth symbol->atom */
struct _pdp_atom s_forth;
/* packet handling cache */
struct _pdp_list *s_type; // a parsed type description: a/b/c -> (a,b,c)
struct _pdp_list *s_reusefifo; // packet pool fifo for this type
} t_pdp_symbol;
#ifdef __cplusplus
extern "C"
{
#endif
/* namespace stuff */
int pdp_symbol_set_typelist(t_pdp_symbol *s, struct _pdp_list *typelist);
/* get symbol from char */
t_pdp_symbol *pdp_gensym(char *s);
/* iterate over all symbols */
typedef void (*t_pdp_symbol_iterator)(t_pdp_symbol *s);
void pdp_symbol_apply_all(t_pdp_symbol_iterator ir);
// don't use these directly, use the macros
extern t_pdp_symbol _pdp_sym_wildcard;
extern t_pdp_symbol _pdp_sym_float;
extern t_pdp_symbol _pdp_sym_int;
extern t_pdp_symbol _pdp_sym_symbol;
extern t_pdp_symbol _pdp_sym_packet;
extern t_pdp_symbol _pdp_sym_pointer;
extern t_pdp_symbol _pdp_sym_list;
extern t_pdp_symbol _pdp_sym_invalid;
extern t_pdp_symbol _pdp_sym_question_mark;
extern t_pdp_symbol _pdp_sym_atom;
extern t_pdp_symbol _pdp_sym_null;
extern t_pdp_symbol _pdp_sym_quote_start;
extern t_pdp_symbol _pdp_sym_quote_end;
extern t_pdp_symbol _pdp_sym_return;
extern t_pdp_symbol _pdp_sym_nreturn;
extern t_pdp_symbol _pdp_sym_defstart;
extern t_pdp_symbol _pdp_sym_defend;
extern t_pdp_symbol _pdp_sym_if;
extern t_pdp_symbol _pdp_sym_then;
extern t_pdp_symbol _pdp_sym_local;
extern t_pdp_symbol _pdp_sym_forth;
extern t_pdp_symbol _pdp_sym_call;
extern t_pdp_symbol _pdp_sym_push;
extern t_pdp_symbol _pdp_sym_pop;
#ifdef __cplusplus
}
#endif
// these symbols are used a lot in critical parts
// optimize later
#define PDP_SYM_WILDCARD &_pdp_sym_wildcard
#define PDP_SYM_FLOAT &_pdp_sym_float
#define PDP_SYM_INT &_pdp_sym_int
#define PDP_SYM_SYMBOL &_pdp_sym_symbol
#define PDP_SYM_PACKET &_pdp_sym_packet
#define PDP_SYM_POINTER &_pdp_sym_pointer
#define PDP_SYM_LIST &_pdp_sym_list
#define PDP_SYM_INVALID &_pdp_sym_invalid
#define PDP_SYM_QUESTION_MARK &_pdp_sym_question_mark
#define PDP_SYM_ATOM &_pdp_sym_atom
#define PDP_SYM_NULL &_pdp_sym_null
#define PDP_SYM_QUOTE_START &_pdp_sym_quote_start
#define PDP_SYM_QUOTE_END &_pdp_sym_quote_end
#define PDP_SYM_RETURN &_pdp_sym_return
#define PDP_SYM_NRETURN &_pdp_sym_nreturn
#define PDP_SYM_DEF_START &_pdp_sym_defstart
#define PDP_SYM_DEF_END &_pdp_sym_defend
#define PDP_SYM_IF &_pdp_sym_if
#define PDP_SYM_THEN &_pdp_sym_then
#define PDP_SYM_LOCAL &_pdp_sym_local
#define PDP_SYM_FORTH &_pdp_sym_forth
#define PDP_SYM_CALL &_pdp_sym_call
#define PDP_SYM_PUSH &_pdp_sym_push
#define PDP_SYM_POP &_pdp_sym_pop
#endif
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