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b7f3516f | 1 | /* Copyright (C) 1995,1996, 1997 Free Software Foundation, Inc. |
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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 | |
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15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
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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. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
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41 | \f |
42 | ||
43 | #include <stdio.h> | |
44 | #include "_scm.h" | |
20e6290e | 45 | #include "genio.h" |
20e6290e | 46 | #include "smob.h" |
0f2d19dd | 47 | |
20e6290e | 48 | #include "kw.h" |
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49 | \f |
50 | ||
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51 | |
52 | static scm_sizet free_kw SCM_P ((SCM obj)); | |
53 | ||
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54 | static scm_sizet |
55 | free_kw (obj) | |
56 | SCM obj; | |
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57 | { |
58 | return 0; | |
59 | } | |
60 | ||
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61 | |
62 | static int prin_kw SCM_P ((SCM exp, SCM port, scm_print_state *pstate)); | |
63 | ||
0f2d19dd | 64 | static int |
9882ea19 | 65 | prin_kw (exp, port, pstate) |
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66 | SCM exp; |
67 | SCM port; | |
9882ea19 | 68 | scm_print_state *pstate; |
0f2d19dd | 69 | { |
b7f3516f TT |
70 | scm_puts ("#:", port); |
71 | scm_puts(1 + SCM_CHARS (SCM_CDR (exp)), port); | |
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72 | return 1; |
73 | } | |
74 | ||
75 | int scm_tc16_kw; | |
76 | ||
77 | static scm_smobfuns kw_smob = {scm_markcdr, free_kw, prin_kw, 0}; | |
78 | ||
79 | ||
80 | ||
81 | SCM_PROC (s_make_keyword_from_dash_symbol, "make-keyword-from-dash-symbol", 1, 0, 0, scm_make_keyword_from_dash_symbol); | |
1cc91f1b | 82 | |
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83 | SCM |
84 | scm_make_keyword_from_dash_symbol (symbol) | |
85 | SCM symbol; | |
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86 | { |
87 | SCM vcell; | |
88 | ||
89 | SCM_ASSERT (SCM_NIMP (symbol) && SCM_SYMBOLP(symbol) && ('-' == SCM_CHARS(symbol)[0]), | |
90 | symbol, SCM_ARG1, s_make_keyword_from_dash_symbol); | |
91 | ||
92 | ||
93 | SCM_DEFER_INTS; | |
94 | vcell = scm_sym2ovcell_soft (symbol, scm_kw_obarray); | |
95 | if (vcell == SCM_BOOL_F) | |
96 | { | |
97 | SCM kw; | |
98 | SCM_NEWCELL(kw); | |
a6c64c3c MD |
99 | SCM_SETCAR (kw, (SCM)scm_tc16_kw); |
100 | SCM_SETCDR (kw, symbol); | |
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101 | scm_intern_symbol (scm_kw_obarray, symbol); |
102 | vcell = scm_sym2ovcell_soft (symbol, scm_kw_obarray); | |
a6c64c3c | 103 | SCM_SETCDR (vcell, kw); |
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104 | } |
105 | SCM_ALLOW_INTS; | |
106 | return SCM_CDR (vcell); | |
107 | } | |
108 | ||
109 | SCM_PROC(s_keyword_p, "keyword?", 1, 0, 0, scm_keyword_p); | |
1cc91f1b | 110 | |
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111 | SCM |
112 | scm_keyword_p (obj) | |
113 | SCM obj; | |
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114 | { |
115 | return ( (SCM_NIMP(obj) && SCM_KEYWORDP (obj)) | |
116 | ? SCM_BOOL_T | |
117 | : SCM_BOOL_F); | |
118 | } | |
119 | ||
120 | ||
121 | ||
122 | SCM_PROC(s_keyword_dash_symbol, "keyword-dash-symbol", 1, 0, 0, scm_keyword_dash_symbol); | |
1cc91f1b | 123 | |
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124 | SCM |
125 | scm_keyword_dash_symbol (kw) | |
126 | SCM kw; | |
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127 | { |
128 | SCM_ASSERT (SCM_NIMP (kw) && SCM_KEYWORDP (kw), kw, SCM_ARG1, s_keyword_dash_symbol); | |
129 | return SCM_CDR (kw); | |
130 | } | |
131 | ||
132 | ||
133 | ||
134 | ||
1cc91f1b | 135 | |
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136 | void |
137 | scm_init_kw () | |
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138 | { |
139 | scm_tc16_kw = scm_newsmob (&kw_smob); | |
140 | scm_kw_obarray = scm_make_vector (SCM_MAKINUM (256), SCM_EOL, SCM_UNDEFINED); | |
141 | #include "kw.x" | |
142 | } | |
143 |