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dbb605f5 | 1 | /* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2003, 2004, 2006, 2008 Free Software Foundation, Inc. |
fca75708 | 2 | * |
73be1d9e | 3 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
4 | * modify it under the terms of the GNU Lesser General Public License |
5 | * as published by the Free Software Foundation; either version 3 of | |
6 | * the License, or (at your option) any later version. | |
fca75708 | 7 | * |
53befeb7 NJ |
8 | * This library is distributed in the hope that it will be useful, but |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
11 | * Lesser General Public License for more details. | |
fca75708 | 12 | * |
73be1d9e MV |
13 | * You should have received a copy of the GNU Lesser General Public |
14 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
16 | * 02110-1301 USA | |
73be1d9e | 17 | */ |
1bbd0b84 | 18 | |
1bbd0b84 | 19 | |
fca75708 | 20 | \f |
dbb605f5 LC |
21 | #ifdef HAVE_CONFIG_H |
22 | # include <config.h> | |
23 | #endif | |
fca75708 | 24 | |
13070bd3 DH |
25 | #include <string.h> |
26 | ||
a0599745 | 27 | #include "libguile/_scm.h" |
4e047c3e | 28 | #include "libguile/async.h" |
a0599745 MD |
29 | #include "libguile/ports.h" |
30 | #include "libguile/root.h" | |
31 | #include "libguile/smob.h" | |
00ffa0e7 | 32 | #include "libguile/hashtab.h" |
a0599745 MD |
33 | |
34 | #include "libguile/validate.h" | |
35 | #include "libguile/keywords.h" | |
cc95e00a MV |
36 | #include "libguile/strings.h" |
37 | ||
fca75708 MD |
38 | \f |
39 | ||
92c2555f | 40 | scm_t_bits scm_tc16_keyword; |
e841c3e0 | 41 | |
265a7997 MV |
42 | #define KEYWORDP(X) (SCM_SMOB_PREDICATE (scm_tc16_keyword, (X))) |
43 | #define KEYWORDSYM(X) (SCM_SMOB_OBJECT (X)) | |
44 | ||
fca75708 | 45 | static int |
e81d98ec | 46 | keyword_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
fca75708 MD |
47 | { |
48 | scm_puts ("#:", port); | |
265a7997 | 49 | scm_display (KEYWORDSYM (exp), port); |
fca75708 MD |
50 | return 1; |
51 | } | |
52 | ||
265a7997 MV |
53 | SCM_DEFINE (scm_keyword_p, "keyword?", 1, 0, 0, |
54 | (SCM obj), | |
55 | "Return @code{#t} if the argument @var{obj} is a keyword, else\n" | |
56 | "@code{#f}.") | |
57 | #define FUNC_NAME s_scm_keyword_p | |
58 | { | |
59 | return scm_from_bool (KEYWORDP (obj)); | |
60 | } | |
61 | #undef FUNC_NAME | |
62 | ||
63 | SCM_DEFINE (scm_symbol_to_keyword, "symbol->keyword", 1, 0, 0, | |
64 | (SCM symbol), | |
65 | "Return the keyword with the same name as @var{symbol}.") | |
66 | #define FUNC_NAME s_scm_symbol_to_keyword | |
fca75708 | 67 | { |
86d31dfe | 68 | SCM keyword; |
fca75708 | 69 | |
d7212289 | 70 | SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol, 0, NULL, "symbol"); |
fca75708 | 71 | |
9de87eea | 72 | SCM_CRITICAL_SECTION_START; |
a61b2054 | 73 | /* njrev: NEWSMOB and hashq_set_x can raise errors */ |
86d31dfe | 74 | keyword = scm_hashq_ref (scm_keyword_obarray, symbol, SCM_BOOL_F); |
7888309b | 75 | if (scm_is_false (keyword)) |
fca75708 | 76 | { |
54778cd3 | 77 | SCM_NEWSMOB (keyword, scm_tc16_keyword, SCM_UNPACK (symbol)); |
86d31dfe | 78 | scm_hashq_set_x (scm_keyword_obarray, symbol, keyword); |
fca75708 | 79 | } |
9de87eea | 80 | SCM_CRITICAL_SECTION_END; |
86d31dfe | 81 | return keyword; |
fca75708 | 82 | } |
1bbd0b84 | 83 | #undef FUNC_NAME |
fca75708 | 84 | |
265a7997 MV |
85 | SCM_DEFINE (scm_keyword_to_symbol, "keyword->symbol", 1, 0, 0, |
86 | (SCM keyword), | |
87 | "Return the symbol with the same name as @var{keyword}.") | |
88 | #define FUNC_NAME s_scm_keyword_to_symbol | |
430a6cc3 | 89 | { |
265a7997 MV |
90 | scm_assert_smob_type (scm_tc16_keyword, keyword); |
91 | return KEYWORDSYM (keyword); | |
430a6cc3 | 92 | } |
265a7997 | 93 | #undef FUNC_NAME |
430a6cc3 | 94 | |
265a7997 MV |
95 | int |
96 | scm_is_keyword (SCM val) | |
fca75708 | 97 | { |
265a7997 | 98 | return KEYWORDP (val); |
fca75708 MD |
99 | } |
100 | ||
265a7997 MV |
101 | SCM |
102 | scm_from_locale_keyword (const char *str) | |
fca75708 | 103 | { |
265a7997 | 104 | return scm_symbol_to_keyword (scm_from_locale_symbol (str)); |
fca75708 | 105 | } |
fca75708 | 106 | |
265a7997 MV |
107 | SCM |
108 | scm_from_locale_keywordn (const char *str, size_t len) | |
109 | { | |
110 | return scm_symbol_to_keyword (scm_from_locale_symboln (str, len)); | |
111 | } | |
fca75708 | 112 | |
a61b2054 | 113 | /* njrev: critical sections reviewed so far up to here */ |
fca75708 MD |
114 | void |
115 | scm_init_keywords () | |
116 | { | |
e841c3e0 | 117 | scm_tc16_keyword = scm_make_smob_type ("keyword", 0); |
e841c3e0 | 118 | scm_set_smob_print (scm_tc16_keyword, keyword_print); |
f5f2dcff | 119 | |
231a4ea8 | 120 | scm_keyword_obarray = scm_c_make_hash_table (0); |
a0599745 | 121 | #include "libguile/keywords.x" |
fca75708 MD |
122 | } |
123 | ||
89e00824 ML |
124 | |
125 | /* | |
126 | Local Variables: | |
127 | c-file-style: "gnu" | |
128 | End: | |
129 | */ |