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1 | /* Copyright (C) 1995,1996 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, 675 Mass Ave, Cambridge, MA 02139, USA. | |
16 | * | |
17 | * As a special exception, the Free Software Foundation gives permission | |
18 | * for additional uses of the text contained in its release of GUILE. | |
19 | * | |
20 | * The exception is that, if you link the GUILE library with other files | |
21 | * to produce an executable, this does not by itself cause the | |
22 | * resulting executable to be covered by the GNU General Public License. | |
23 | * Your use of that executable is in no way restricted on account of | |
24 | * linking the GUILE library code into it. | |
25 | * | |
26 | * This exception does not however invalidate any other reasons why | |
27 | * the executable file might be covered by the GNU General Public License. | |
28 | * | |
29 | * This exception applies only to the code released by the | |
30 | * Free Software Foundation under the name GUILE. If you copy | |
31 | * code from other Free Software Foundation releases into a copy of | |
32 | * GUILE, as the General Public License permits, the exception does | |
33 | * not apply to the code that you add in this way. To avoid misleading | |
34 | * anyone as to the status of such modified files, you must delete | |
35 | * this exception notice from them. | |
36 | * | |
37 | * If you write modifications of your own for GUILE, it is your choice | |
38 | * whether to permit this exception to apply to your modifications. | |
39 | * If you do not wish that, delete this exception notice. | |
40 | */ | |
41 | \f | |
42 | ||
43 | #include <stdio.h> | |
44 | #include "_scm.h" | |
20e6290e JB |
45 | #include "genio.h" |
46 | #include "mbstrings.h" | |
47 | #include "smob.h" | |
0f2d19dd | 48 | |
20e6290e | 49 | #include "kw.h" |
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50 | \f |
51 | ||
1cc91f1b JB |
52 | |
53 | static scm_sizet free_kw SCM_P ((SCM obj)); | |
54 | ||
0f2d19dd JB |
55 | static scm_sizet |
56 | free_kw (obj) | |
57 | SCM obj; | |
0f2d19dd JB |
58 | { |
59 | return 0; | |
60 | } | |
61 | ||
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62 | |
63 | static int prin_kw SCM_P ((SCM exp, SCM port, scm_print_state *pstate)); | |
64 | ||
0f2d19dd | 65 | static int |
9882ea19 | 66 | prin_kw (exp, port, pstate) |
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67 | SCM exp; |
68 | SCM port; | |
9882ea19 | 69 | scm_print_state *pstate; |
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70 | { |
71 | scm_gen_puts (scm_regular_string, ":", port); | |
72 | scm_gen_puts((SCM_MB_STRINGP(SCM_CDR (exp)) | |
73 | ? scm_mb_string | |
74 | : scm_regular_string), | |
75 | 1 + SCM_CHARS (SCM_CDR (exp)), | |
76 | port); | |
77 | return 1; | |
78 | } | |
79 | ||
80 | int scm_tc16_kw; | |
81 | ||
82 | static scm_smobfuns kw_smob = {scm_markcdr, free_kw, prin_kw, 0}; | |
83 | ||
84 | ||
85 | ||
86 | SCM_PROC (s_make_keyword_from_dash_symbol, "make-keyword-from-dash-symbol", 1, 0, 0, scm_make_keyword_from_dash_symbol); | |
1cc91f1b | 87 | |
0f2d19dd JB |
88 | SCM |
89 | scm_make_keyword_from_dash_symbol (symbol) | |
90 | SCM symbol; | |
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91 | { |
92 | SCM vcell; | |
93 | ||
94 | SCM_ASSERT (SCM_NIMP (symbol) && SCM_SYMBOLP(symbol) && ('-' == SCM_CHARS(symbol)[0]), | |
95 | symbol, SCM_ARG1, s_make_keyword_from_dash_symbol); | |
96 | ||
97 | ||
98 | SCM_DEFER_INTS; | |
99 | vcell = scm_sym2ovcell_soft (symbol, scm_kw_obarray); | |
100 | if (vcell == SCM_BOOL_F) | |
101 | { | |
102 | SCM kw; | |
103 | SCM_NEWCELL(kw); | |
a6c64c3c MD |
104 | SCM_SETCAR (kw, (SCM)scm_tc16_kw); |
105 | SCM_SETCDR (kw, symbol); | |
0f2d19dd JB |
106 | scm_intern_symbol (scm_kw_obarray, symbol); |
107 | vcell = scm_sym2ovcell_soft (symbol, scm_kw_obarray); | |
a6c64c3c | 108 | SCM_SETCDR (vcell, kw); |
0f2d19dd JB |
109 | } |
110 | SCM_ALLOW_INTS; | |
111 | return SCM_CDR (vcell); | |
112 | } | |
113 | ||
114 | SCM_PROC(s_keyword_p, "keyword?", 1, 0, 0, scm_keyword_p); | |
1cc91f1b | 115 | |
0f2d19dd JB |
116 | SCM |
117 | scm_keyword_p (obj) | |
118 | SCM obj; | |
0f2d19dd JB |
119 | { |
120 | return ( (SCM_NIMP(obj) && SCM_KEYWORDP (obj)) | |
121 | ? SCM_BOOL_T | |
122 | : SCM_BOOL_F); | |
123 | } | |
124 | ||
125 | ||
126 | ||
127 | SCM_PROC(s_keyword_dash_symbol, "keyword-dash-symbol", 1, 0, 0, scm_keyword_dash_symbol); | |
1cc91f1b | 128 | |
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129 | SCM |
130 | scm_keyword_dash_symbol (kw) | |
131 | SCM kw; | |
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132 | { |
133 | SCM_ASSERT (SCM_NIMP (kw) && SCM_KEYWORDP (kw), kw, SCM_ARG1, s_keyword_dash_symbol); | |
134 | return SCM_CDR (kw); | |
135 | } | |
136 | ||
137 | ||
138 | ||
139 | ||
1cc91f1b | 140 | |
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141 | void |
142 | scm_init_kw () | |
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143 | { |
144 | scm_tc16_kw = scm_newsmob (&kw_smob); | |
145 | scm_kw_obarray = scm_make_vector (SCM_MAKINUM (256), SCM_EOL, SCM_UNDEFINED); | |
146 | #include "kw.x" | |
147 | } | |
148 |