Commit | Line | Data |
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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 MV |
3 | * This library is free software; you can redistribute it and/or |
4 | * modify it under the terms of the GNU Lesser General Public | |
5 | * License as published by the Free Software Foundation; either | |
6 | * version 2.1 of the License, or (at your option) any later version. | |
fca75708 | 7 | * |
73be1d9e MV |
8 | * This library is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
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 | |
92205699 | 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
73be1d9e | 16 | */ |
1bbd0b84 | 17 | |
1bbd0b84 | 18 | |
fca75708 | 19 | \f |
dbb605f5 LC |
20 | #ifdef HAVE_CONFIG_H |
21 | # include <config.h> | |
22 | #endif | |
fca75708 | 23 | |
13070bd3 DH |
24 | #include <string.h> |
25 | ||
a0599745 | 26 | #include "libguile/_scm.h" |
4e047c3e | 27 | #include "libguile/async.h" |
a0599745 MD |
28 | #include "libguile/ports.h" |
29 | #include "libguile/root.h" | |
30 | #include "libguile/smob.h" | |
00ffa0e7 | 31 | #include "libguile/hashtab.h" |
a0599745 MD |
32 | |
33 | #include "libguile/validate.h" | |
34 | #include "libguile/keywords.h" | |
cc95e00a MV |
35 | #include "libguile/strings.h" |
36 | ||
fca75708 MD |
37 | \f |
38 | ||
92c2555f | 39 | scm_t_bits scm_tc16_keyword; |
e841c3e0 | 40 | |
265a7997 MV |
41 | #define KEYWORDP(X) (SCM_SMOB_PREDICATE (scm_tc16_keyword, (X))) |
42 | #define KEYWORDSYM(X) (SCM_SMOB_OBJECT (X)) | |
43 | ||
fca75708 | 44 | static int |
e81d98ec | 45 | keyword_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
fca75708 MD |
46 | { |
47 | scm_puts ("#:", port); | |
265a7997 | 48 | scm_display (KEYWORDSYM (exp), port); |
fca75708 MD |
49 | return 1; |
50 | } | |
51 | ||
265a7997 MV |
52 | SCM_DEFINE (scm_keyword_p, "keyword?", 1, 0, 0, |
53 | (SCM obj), | |
54 | "Return @code{#t} if the argument @var{obj} is a keyword, else\n" | |
55 | "@code{#f}.") | |
56 | #define FUNC_NAME s_scm_keyword_p | |
57 | { | |
58 | return scm_from_bool (KEYWORDP (obj)); | |
59 | } | |
60 | #undef FUNC_NAME | |
61 | ||
62 | SCM_DEFINE (scm_symbol_to_keyword, "symbol->keyword", 1, 0, 0, | |
63 | (SCM symbol), | |
64 | "Return the keyword with the same name as @var{symbol}.") | |
65 | #define FUNC_NAME s_scm_symbol_to_keyword | |
fca75708 | 66 | { |
86d31dfe | 67 | SCM keyword; |
fca75708 | 68 | |
d7212289 | 69 | SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol, 0, NULL, "symbol"); |
fca75708 | 70 | |
9de87eea | 71 | SCM_CRITICAL_SECTION_START; |
a61b2054 | 72 | /* njrev: NEWSMOB and hashq_set_x can raise errors */ |
86d31dfe | 73 | keyword = scm_hashq_ref (scm_keyword_obarray, symbol, SCM_BOOL_F); |
7888309b | 74 | if (scm_is_false (keyword)) |
fca75708 | 75 | { |
54778cd3 | 76 | SCM_NEWSMOB (keyword, scm_tc16_keyword, SCM_UNPACK (symbol)); |
86d31dfe | 77 | scm_hashq_set_x (scm_keyword_obarray, symbol, keyword); |
fca75708 | 78 | } |
9de87eea | 79 | SCM_CRITICAL_SECTION_END; |
86d31dfe | 80 | return keyword; |
fca75708 | 81 | } |
1bbd0b84 | 82 | #undef FUNC_NAME |
fca75708 | 83 | |
265a7997 MV |
84 | SCM_DEFINE (scm_keyword_to_symbol, "keyword->symbol", 1, 0, 0, |
85 | (SCM keyword), | |
86 | "Return the symbol with the same name as @var{keyword}.") | |
87 | #define FUNC_NAME s_scm_keyword_to_symbol | |
430a6cc3 | 88 | { |
265a7997 MV |
89 | scm_assert_smob_type (scm_tc16_keyword, keyword); |
90 | return KEYWORDSYM (keyword); | |
430a6cc3 | 91 | } |
265a7997 | 92 | #undef FUNC_NAME |
430a6cc3 | 93 | |
265a7997 MV |
94 | int |
95 | scm_is_keyword (SCM val) | |
fca75708 | 96 | { |
265a7997 | 97 | return KEYWORDP (val); |
fca75708 MD |
98 | } |
99 | ||
265a7997 MV |
100 | SCM |
101 | scm_from_locale_keyword (const char *str) | |
fca75708 | 102 | { |
265a7997 | 103 | return scm_symbol_to_keyword (scm_from_locale_symbol (str)); |
fca75708 | 104 | } |
fca75708 | 105 | |
265a7997 MV |
106 | SCM |
107 | scm_from_locale_keywordn (const char *str, size_t len) | |
108 | { | |
109 | return scm_symbol_to_keyword (scm_from_locale_symboln (str, len)); | |
110 | } | |
fca75708 | 111 | |
a61b2054 | 112 | /* njrev: critical sections reviewed so far up to here */ |
fca75708 MD |
113 | void |
114 | scm_init_keywords () | |
115 | { | |
e841c3e0 | 116 | scm_tc16_keyword = scm_make_smob_type ("keyword", 0); |
e841c3e0 | 117 | scm_set_smob_print (scm_tc16_keyword, keyword_print); |
f5f2dcff | 118 | |
231a4ea8 | 119 | scm_keyword_obarray = scm_c_make_hash_table (0); |
a0599745 | 120 | #include "libguile/keywords.x" |
fca75708 MD |
121 | } |
122 | ||
89e00824 ML |
123 | |
124 | /* | |
125 | Local Variables: | |
126 | c-file-style: "gnu" | |
127 | End: | |
128 | */ |