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0f2d19dd JB |
1 | /* classes: h_files */ |
2 | ||
729dbac3 DH |
3 | #ifndef SCM_SYMBOLS_H |
4 | #define SCM_SYMBOLS_H | |
dee01b01 | 5 | |
c35738c1 | 6 | /* Copyright (C) 1995,1996,1997,1998,2000,2001, 2003 Free Software Foundation, Inc. |
dee01b01 | 7 | * |
0f2d19dd JB |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2, or (at your option) | |
11 | * any later version. | |
dee01b01 | 12 | * |
0f2d19dd JB |
13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
dee01b01 | 17 | * |
0f2d19dd JB |
18 | * You should have received a copy of the GNU General Public License |
19 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
20 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
21 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
22 | * |
23 | * As a special exception, the Free Software Foundation gives permission | |
24 | * for additional uses of the text contained in its release of GUILE. | |
25 | * | |
26 | * The exception is that, if you link the GUILE library with other files | |
27 | * to produce an executable, this does not by itself cause the | |
28 | * resulting executable to be covered by the GNU General Public License. | |
29 | * Your use of that executable is in no way restricted on account of | |
30 | * linking the GUILE library code into it. | |
31 | * | |
32 | * This exception does not however invalidate any other reasons why | |
33 | * the executable file might be covered by the GNU General Public License. | |
34 | * | |
35 | * This exception applies only to the code released by the | |
36 | * Free Software Foundation under the name GUILE. If you copy | |
37 | * code from other Free Software Foundation releases into a copy of | |
38 | * GUILE, as the General Public License permits, the exception does | |
39 | * not apply to the code that you add in this way. To avoid misleading | |
40 | * anyone as to the status of such modified files, you must delete | |
41 | * this exception notice from them. | |
42 | * | |
43 | * If you write modifications of your own for GUILE, it is your choice | |
44 | * whether to permit this exception to apply to your modifications. | |
82892bed | 45 | * If you do not wish that, delete this exception notice. */ |
d3a6bc94 | 46 | |
0f2d19dd JB |
47 | \f |
48 | ||
b4309c3c | 49 | #include "libguile/__scm.h" |
0f2d19dd JB |
50 | \f |
51 | ||
2d349e67 | 52 | /* SCM_SYMBOL_LENGTH(SYM) is the length of SYM's name in characters, and |
a002f1a2 | 53 | * SCM_SYMBOL_CHARS(SYM) is the address of the first character of SYM's name. |
ac48757b MV |
54 | * |
55 | * SCM_SYMBOL_HASH is a hash value for the symbol. It is also used to | |
56 | * encode whether the symbol is interned or not. See | |
57 | * SCM_SYMBOL_INTERNED_P. | |
28b06554 | 58 | */ |
8ce94504 | 59 | |
dee01b01 | 60 | #define SCM_SYMBOLP(x) (!SCM_IMP (x) && (SCM_TYP7 (x) == scm_tc7_symbol)) |
c014a02e | 61 | #define SCM_SYMBOL_LENGTH(x) (((unsigned long) SCM_CELL_WORD_0 (x)) >> 8) |
0a7b506d MV |
62 | #define SCM_MAKE_SYMBOL_TAG(l) (((l) << 8) + scm_tc7_symbol) |
63 | #define SCM_SET_SYMBOL_LENGTH(s, l) (SCM_SET_CELL_WORD_0 ((s), SCM_MAKE_SYMBOL_TAG(l))) | |
e51fe79c DH |
64 | #define SCM_SYMBOL_CHARS(x) ((char *) (SCM_CELL_WORD_1 (x))) |
65 | #define SCM_SET_SYMBOL_CHARS(s, c) (SCM_SET_CELL_WORD_1 ((s), (c))) | |
c014a02e | 66 | #define SCM_SYMBOL_HASH(X) ((unsigned long) SCM_CELL_WORD_2 (X)) |
ac48757b | 67 | #define SCM_SYMBOL_INTERNED_P(X) (SCM_SYMBOL_HASH(X) <= (SCM_T_BITS_MAX/2)) |
3210f49a | 68 | |
729dbac3 DH |
69 | #define SCM_PROP_SLOTS(X) (SCM_CELL_OBJECT_3 (X)) |
70 | #define SCM_SET_PROP_SLOTS(X, v) (SCM_SET_CELL_OBJECT_3 ((X), (v))) | |
71 | #define SCM_SYMBOL_FUNC(X) (SCM_CAR (SCM_CELL_OBJECT_3 (X))) | |
72 | #define SCM_SET_SYMBOL_FUNC(X, v) (SCM_SETCAR (SCM_CELL_OBJECT_3 (X), (v))) | |
73 | #define SCM_SYMBOL_PROPS(X) (SCM_CDR (SCM_CELL_OBJECT_3 (X))) | |
74 | #define SCM_SET_SYMBOL_PROPS(X, v) (SCM_SETCDR (SCM_CELL_OBJECT_3 (X), (v))) | |
0f2d19dd | 75 | |
0f2d19dd | 76 | \f |
0f2d19dd | 77 | |
a4c91488 | 78 | #ifdef GUILE_DEBUG |
33b001fd | 79 | SCM_API SCM scm_sys_symbols (void); |
a4c91488 | 80 | #endif |
c35738c1 | 81 | SCM_API unsigned long scm_i_hash_symbol (SCM obj, unsigned long n, void *closure); |
33b001fd | 82 | SCM_API SCM scm_mem2symbol (const char*, size_t); |
a63cdd61 | 83 | SCM_API SCM scm_mem2uninterned_symbol (const char *name, size_t len); |
33b001fd | 84 | SCM_API SCM scm_str2symbol (const char*); |
23ade5e7 | 85 | |
33b001fd | 86 | SCM_API SCM scm_symbol_p (SCM x); |
a63cdd61 MV |
87 | SCM_API SCM scm_symbol_interned_p (SCM sym); |
88 | SCM_API SCM scm_make_symbol (SCM name); | |
33b001fd MV |
89 | SCM_API SCM scm_symbol_to_string (SCM s); |
90 | SCM_API SCM scm_string_to_symbol (SCM s); | |
86d31dfe | 91 | |
33b001fd MV |
92 | SCM_API SCM scm_symbol_fref (SCM s); |
93 | SCM_API SCM scm_symbol_pref (SCM s); | |
94 | SCM_API SCM scm_symbol_fset_x (SCM s, SCM val); | |
95 | SCM_API SCM scm_symbol_pset_x (SCM s, SCM val); | |
86d31dfe | 96 | |
33b001fd MV |
97 | SCM_API SCM scm_symbol_hash (SCM s); |
98 | SCM_API SCM scm_gensym (SCM prefix); | |
86d31dfe | 99 | |
af68e5e5 | 100 | SCM_API char *scm_c_symbol2str (SCM obj, char *str, size_t *lenp); |
33b001fd MV |
101 | SCM_API void scm_symbols_prehistory (void); |
102 | SCM_API void scm_init_symbols (void); | |
0f2d19dd | 103 | |
729dbac3 | 104 | #endif /* SCM_SYMBOLS_H */ |
89e00824 ML |
105 | |
106 | /* | |
107 | Local Variables: | |
108 | c-file-style: "gnu" | |
109 | End: | |
110 | */ |