| 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" |
| 45 | #include "genio.h" |
| 46 | #include "mbstrings.h" |
| 47 | #include "smob.h" |
| 48 | |
| 49 | #include "kw.h" |
| 50 | \f |
| 51 | |
| 52 | |
| 53 | static scm_sizet free_kw SCM_P ((SCM obj)); |
| 54 | |
| 55 | static scm_sizet |
| 56 | free_kw (obj) |
| 57 | SCM obj; |
| 58 | { |
| 59 | return 0; |
| 60 | } |
| 61 | |
| 62 | |
| 63 | static int prin_kw SCM_P ((SCM exp, SCM port, scm_print_state *pstate)); |
| 64 | |
| 65 | static int |
| 66 | prin_kw (exp, port, pstate) |
| 67 | SCM exp; |
| 68 | SCM port; |
| 69 | scm_print_state *pstate; |
| 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); |
| 87 | |
| 88 | SCM |
| 89 | scm_make_keyword_from_dash_symbol (symbol) |
| 90 | SCM symbol; |
| 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); |
| 104 | SCM_SETCAR (kw, (SCM)scm_tc16_kw); |
| 105 | SCM_SETCDR (kw, symbol); |
| 106 | scm_intern_symbol (scm_kw_obarray, symbol); |
| 107 | vcell = scm_sym2ovcell_soft (symbol, scm_kw_obarray); |
| 108 | SCM_SETCDR (vcell, kw); |
| 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); |
| 115 | |
| 116 | SCM |
| 117 | scm_keyword_p (obj) |
| 118 | SCM obj; |
| 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); |
| 128 | |
| 129 | SCM |
| 130 | scm_keyword_dash_symbol (kw) |
| 131 | SCM kw; |
| 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 | |
| 140 | |
| 141 | void |
| 142 | scm_init_kw () |
| 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 | |