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fca75708 MD |
1 | /* Copyright (C) 1995,1996,1997,1998, 1999 Free Software Foundation, Inc. |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program 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 | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
16 | * Boston, MA 02111-1307 USA | |
17 | * | |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
40 | * If you do not wish that, delete this exception notice. */ | |
41 | \f | |
42 | ||
43 | #include <stdio.h> | |
44 | #include "_scm.h" | |
45 | #include "genio.h" | |
46 | #include "smob.h" | |
47 | ||
48 | #include "keywords.h" | |
49 | \f | |
50 | ||
fca75708 MD |
51 | static int prin_keyword SCM_P ((SCM exp, SCM port, scm_print_state *pstate)); |
52 | ||
53 | static int | |
54 | prin_keyword (exp, port, pstate) | |
55 | SCM exp; | |
56 | SCM port; | |
57 | scm_print_state *pstate; | |
58 | { | |
59 | scm_puts ("#:", port); | |
60 | scm_puts(1 + SCM_CHARS (SCM_CDR (exp)), port); | |
61 | return 1; | |
62 | } | |
63 | ||
64 | int scm_tc16_keyword; | |
65 | ||
b27aca0a MD |
66 | /* This global is only kept for backward compatibility. |
67 | Will be removed in next release. */ | |
68 | int scm_tc16_kw; | |
69 | ||
fca75708 MD |
70 | |
71 | SCM_PROC (s_make_keyword_from_dash_symbol, "make-keyword-from-dash-symbol", 1, 0, 0, scm_make_keyword_from_dash_symbol); | |
72 | ||
73 | SCM | |
74 | scm_make_keyword_from_dash_symbol (symbol) | |
75 | SCM symbol; | |
76 | { | |
77 | SCM vcell; | |
78 | ||
79 | SCM_ASSERT (SCM_NIMP (symbol) | |
80 | && SCM_SYMBOLP (symbol) | |
81 | && ('-' == SCM_CHARS(symbol)[0]), | |
82 | symbol, SCM_ARG1, s_make_keyword_from_dash_symbol); | |
83 | ||
84 | SCM_DEFER_INTS; | |
85 | vcell = scm_sym2ovcell_soft (symbol, scm_keyword_obarray); | |
86 | if (vcell == SCM_BOOL_F) | |
87 | { | |
88 | SCM keyword; | |
23a62151 | 89 | SCM_NEWSMOB (keyword, scm_tc16_keyword, symbol); |
fca75708 MD |
90 | scm_intern_symbol (scm_keyword_obarray, symbol); |
91 | vcell = scm_sym2ovcell_soft (symbol, scm_keyword_obarray); | |
92 | SCM_SETCDR (vcell, keyword); | |
93 | } | |
94 | SCM_ALLOW_INTS; | |
95 | return SCM_CDR (vcell); | |
96 | } | |
97 | ||
430a6cc3 MD |
98 | SCM |
99 | scm_c_make_keyword (char *s) | |
100 | { | |
101 | SCM vcell; | |
102 | char *buf = scm_must_malloc (strlen (s) + 2, "keyword"); | |
103 | buf[0] = '-'; | |
104 | strcpy (buf + 1, s); | |
105 | vcell = scm_sysintern0 (buf); | |
106 | scm_must_free (buf); | |
107 | return scm_make_keyword_from_dash_symbol (SCM_CAR (vcell)); | |
108 | } | |
109 | ||
fca75708 MD |
110 | SCM_PROC(s_keyword_p, "keyword?", 1, 0, 0, scm_keyword_p); |
111 | ||
112 | SCM | |
113 | scm_keyword_p (obj) | |
114 | SCM obj; | |
115 | { | |
116 | return ( (SCM_NIMP(obj) && SCM_KEYWORDP (obj)) | |
117 | ? SCM_BOOL_T | |
118 | : SCM_BOOL_F); | |
119 | } | |
120 | ||
121 | ||
122 | ||
123 | SCM_PROC(s_keyword_dash_symbol, "keyword-dash-symbol", 1, 0, 0, scm_keyword_dash_symbol); | |
124 | ||
125 | SCM | |
126 | scm_keyword_dash_symbol (keyword) | |
127 | SCM keyword; | |
128 | { | |
129 | SCM_ASSERT (SCM_NIMP (keyword) && SCM_KEYWORDP (keyword), | |
130 | keyword, SCM_ARG1, s_keyword_dash_symbol); | |
131 | return SCM_CDR (keyword); | |
132 | } | |
133 | ||
134 | ||
135 | ||
136 | ||
137 | ||
138 | void | |
139 | scm_init_keywords () | |
140 | { | |
23a62151 MD |
141 | scm_tc16_keyword = scm_make_smob_type_mfpe ("keyword", 0, |
142 | scm_markcdr, NULL, prin_keyword, NULL); | |
b27aca0a | 143 | scm_tc16_kw = scm_tc16_keyword; |
fca75708 MD |
144 | scm_keyword_obarray = scm_make_vector (SCM_MAKINUM (256), SCM_EOL); |
145 | #include "keywords.x" | |
146 | } | |
147 |