diff options
Diffstat (limited to 'libguile/symbols.h')
-rw-r--r-- | libguile/symbols.h | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/libguile/symbols.h b/libguile/symbols.h deleted file mode 100644 index f8a75d5f3..000000000 --- a/libguile/symbols.h +++ /dev/null @@ -1,132 +0,0 @@ -/* classes: h_files */ - -#ifndef SYMBOLSH -#define SYMBOLSH -/* Copyright (C) 1995,1996 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 software; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * As a special exception, the Free Software Foundation gives permission - * for additional uses of the text contained in its release of GUILE. - * - * The exception is that, if you link the GUILE library with other files - * to produce an executable, this does not by itself cause the - * resulting executable to be covered by the GNU General Public License. - * Your use of that executable is in no way restricted on account of - * linking the GUILE library code into it. - * - * This exception does not however invalidate any other reasons why - * the executable file might be covered by the GNU General Public License. - * - * This exception applies only to the code released by the - * Free Software Foundation under the name GUILE. If you copy - * code from other Free Software Foundation releases into a copy of - * GUILE, as the General Public License permits, the exception does - * not apply to the code that you add in this way. To avoid misleading - * anyone as to the status of such modified files, you must delete - * this exception notice from them. - * - * If you write modifications of your own for GUILE, it is your choice - * whether to permit this exception to apply to your modifications. - * If you do not wish that, delete this exception notice. - */ - - -#include "libguile/__scm.h" - - -extern int scm_symhash_dim; - -/* SCM_LENGTH(SYM) is the length of SYM's name in characters, and - SCM_CHARS(SYM) is the address of the first character of SYM's name. - - Beyond that, there are two kinds of symbols: ssymbols and msymbols, - distinguished by the 'S' bit in the type. - - Ssymbols are just uniquified strings. They have a length, chars, - and that's it. They use the scm_tc7_ssymbol tag (S bit clear). - - Msymbols are symbols with extra slots. These slots hold a property - list and a function value (for Emacs Lisp compatibility), a hash - code, and a flag to indicate whether their name contains multibyte - characters. They use the scm_tc7_msymbol tag. - - We'd like SCM_CHARS to work on msymbols just as it does on - ssymbols, so we'll have it point to the symbol's name as usual, and - store a pointer to the slots just before the name in memory. Thus, - you have to do some casting and pointer arithmetic to find the - slots; see the SCM_SLOTS macro. - - In practice, the slots always live just before the pointer to them. - So why not ditch the pointer, and use negative indices to refer to - the slots? That's a good question; ask the author. I think it was - the cognac. */ - -#define SCM_SYMBOLP(x) (SCM_TYP7S(x)==scm_tc7_ssymbol) -#define SCM_LENGTH(x) (((unsigned long)SCM_CAR(x))>>8) -#define SCM_LENGTH_MAX (0xffffffL) -#define SCM_SETLENGTH(x, v, t) SCM_SETCAR((x), ((v)<<8)+(t)) -#define SCM_SETCHARS SCM_SETCDR -#define SCM_CHARS(x) ((char *)(SCM_CDR(x))) -#define SCM_UCHARS(x) ((unsigned char *)(SCM_CDR(x))) -#define SCM_SLOTS(x) ((SCM *) (* ((SCM *)SCM_CHARS(x) - 1))) -#define SCM_SYMBOL_SLOTS 5 -#define SCM_SYMBOL_FUNC(X) (SCM_SLOTS(X)[0]) -#define SCM_SYMBOL_PROPS(X) (SCM_SLOTS(X)[1]) -#define SCM_SYMBOL_HASH(X) (*(unsigned long*)(&SCM_SLOTS(X)[2])) -#define SCM_SYMBOL_MULTI_BYTE_STRINGP(X) (*(unsigned long*)(&SCM_SLOTS(X)[3])) - -#define SCM_ROSTRINGP(x) ((SCM_TYP7SD(x)==scm_tc7_string) || (SCM_TYP7S(x) == scm_tc7_ssymbol)) -#define SCM_ROCHARS(x) ((SCM_TYP7(x) == scm_tc7_substring) \ - ? SCM_INUM (SCM_CADR (x)) + SCM_CHARS (SCM_CDDR (x)) \ - : SCM_CHARS (x)) -#define SCM_ROUCHARS(x) ((SCM_TYP7(x) == scm_tc7_substring) \ - ? SCM_INUM (SCM_CADR (x)) + SCM_UCHARS (SCM_CDDR (x)) \ - : SCM_UCHARS (x)) -#define SCM_ROLENGTH(x) SCM_LENGTH (x) -#define SCM_SUBSTRP(x) ((SCM_TYP7S(x) == scm_tc7_substring)) -#define SCM_SUBSTR_STR(x) (SCM_CDDR (x)) -#define SCM_SUBSTR_OFFSET(x) (SCM_CADR (x)) - - - - -extern unsigned long scm_strhash SCM_P ((unsigned char *str, scm_sizet len, unsigned long n)); -extern SCM scm_sym2vcell SCM_P ((SCM sym, SCM thunk, SCM definep)); -extern SCM scm_sym2ovcell_soft SCM_P ((SCM sym, SCM obarray)); -extern SCM scm_sym2ovcell SCM_P ((SCM sym, SCM obarray)); -extern SCM scm_intern_obarray_soft SCM_P ((char *name, scm_sizet len, SCM obarray, int softness)); -extern SCM scm_intern_obarray SCM_P ((char *name, scm_sizet len, SCM obarray)); -extern SCM scm_intern SCM_P ((char *name, scm_sizet len)); -extern SCM scm_intern0 SCM_P ((char * name)); -extern SCM scm_sysintern SCM_P ((char *name, SCM val)); -extern SCM scm_symbol_p SCM_P ((SCM x)); -extern SCM scm_symbol_to_string SCM_P ((SCM s)); -extern SCM scm_string_to_symbol SCM_P ((SCM s)); -extern SCM scm_string_to_obarray_symbol SCM_P ((SCM o, SCM s, SCM softp)); -extern SCM scm_intern_symbol SCM_P ((SCM o, SCM s)); -extern SCM scm_unintern_symbol SCM_P ((SCM o, SCM s)); -extern SCM scm_symbol_binding SCM_P ((SCM o, SCM s)); -extern SCM scm_symbol_interned_p SCM_P ((SCM o, SCM s)); -extern SCM scm_symbol_bound_p SCM_P ((SCM o, SCM s)); -extern SCM scm_symbol_set_x SCM_P ((SCM o, SCM s, SCM v)); -extern SCM scm_symbol_fref SCM_P ((SCM s)); -extern SCM scm_symbol_pref SCM_P ((SCM s)); -extern SCM scm_symbol_fset_x SCM_P ((SCM s, SCM val)); -extern SCM scm_symbol_pset_x SCM_P ((SCM s, SCM val)); -extern SCM scm_symbol_hash SCM_P ((SCM s)); -extern void scm_init_symbols SCM_P ((void)); - -#endif /* SYMBOLSH */ |