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148 lines
4 KiB
C
148 lines
4 KiB
C
/* Copyright (C) 1995,1996 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
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* GUILE, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice. */
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#include <stdio.h>
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#include "_scm.h"
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#include "genio.h"
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#include "mbstrings.h"
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#include "smob.h"
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#include "kw.h"
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static scm_sizet free_kw SCM_P ((SCM obj));
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static scm_sizet
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free_kw (obj)
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SCM obj;
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{
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return 0;
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}
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static int prin_kw SCM_P ((SCM exp, SCM port, scm_print_state *pstate));
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static int
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prin_kw (exp, port, pstate)
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SCM exp;
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SCM port;
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scm_print_state *pstate;
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{
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scm_gen_puts (scm_regular_string, ":", port);
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scm_gen_puts((SCM_MB_STRINGP(SCM_CDR (exp))
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? scm_mb_string
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: scm_regular_string),
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1 + SCM_CHARS (SCM_CDR (exp)),
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port);
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return 1;
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}
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int scm_tc16_kw;
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static scm_smobfuns kw_smob = {scm_markcdr, free_kw, prin_kw, 0};
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SCM_PROC (s_make_keyword_from_dash_symbol, "make-keyword-from-dash-symbol", 1, 0, 0, scm_make_keyword_from_dash_symbol);
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SCM
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scm_make_keyword_from_dash_symbol (symbol)
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SCM symbol;
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{
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SCM vcell;
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SCM_ASSERT (SCM_NIMP (symbol) && SCM_SYMBOLP(symbol) && ('-' == SCM_CHARS(symbol)[0]),
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symbol, SCM_ARG1, s_make_keyword_from_dash_symbol);
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SCM_DEFER_INTS;
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vcell = scm_sym2ovcell_soft (symbol, scm_kw_obarray);
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if (vcell == SCM_BOOL_F)
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{
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SCM kw;
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SCM_NEWCELL(kw);
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SCM_SETCAR (kw, (SCM)scm_tc16_kw);
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SCM_SETCDR (kw, symbol);
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scm_intern_symbol (scm_kw_obarray, symbol);
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vcell = scm_sym2ovcell_soft (symbol, scm_kw_obarray);
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SCM_SETCDR (vcell, kw);
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}
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SCM_ALLOW_INTS;
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return SCM_CDR (vcell);
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}
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SCM_PROC(s_keyword_p, "keyword?", 1, 0, 0, scm_keyword_p);
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SCM
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scm_keyword_p (obj)
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SCM obj;
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{
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return ( (SCM_NIMP(obj) && SCM_KEYWORDP (obj))
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? SCM_BOOL_T
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: SCM_BOOL_F);
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}
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SCM_PROC(s_keyword_dash_symbol, "keyword-dash-symbol", 1, 0, 0, scm_keyword_dash_symbol);
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SCM
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scm_keyword_dash_symbol (kw)
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SCM kw;
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{
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SCM_ASSERT (SCM_NIMP (kw) && SCM_KEYWORDP (kw), kw, SCM_ARG1, s_keyword_dash_symbol);
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return SCM_CDR (kw);
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}
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void
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scm_init_kw ()
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{
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scm_tc16_kw = scm_newsmob (&kw_smob);
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scm_kw_obarray = scm_make_vector (SCM_MAKINUM (256), SCM_EOL, SCM_UNDEFINED);
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#include "kw.x"
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}
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