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- /* Copyright (C) 1995 Free Software Foundation, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice.
- */
-
-
- #include <stdio.h>
- #include "_scm.h"
-
-
-
- #ifdef __STDC__
- static sizet
- free_kw (SCM obj)
- #else
- static sizet
- free_kw (obj)
- SCM obj;
- #endif
- {
- return 0;
- }
-
- #ifdef __STDC__
- static int
- prin_kw (SCM exp, SCM port, int writing)
- #else
- static int
- prin_kw (exp, port, writing)
- SCM exp;
- SCM port;
- int writing;
- #endif
- {
- scm_puts(":", port);
- scm_puts(1 + CHARS (CDR (exp)), port);
- return 1;
- }
-
- int scm_tc16_kw;
-
- static scm_smobfuns kw_smob = {scm_markcdr, free_kw, prin_kw, 0};
-
-
- PROC (s_make_keyword, "make-keyword", 1, 0, 0, scm_make_keyword);
- #ifdef __STDC__
- SCM
- scm_make_keyword (SCM symbol)
- #else
- SCM
- scm_make_keyword (symbol)
- SCM symbol;
- #endif
- {
- SCM vcell;
-
- ASSERT (NIMP (symbol) && SYMBOLP(symbol) && ('-' == CHARS(symbol)[0]),
- symbol, ARG1, s_make_keyword);
-
-
- vcell = scm_sym2ovcell_soft (symbol, kw_obarray);
- if (vcell == BOOL_F)
- {
- SCM kw;
- NEWCELL(kw);
- DEFER_INTS;
- CAR(kw) = (SCM)scm_tc16_kw;
- CDR(kw) = symbol;
- ALLOW_INTS;
- scm_intern_symbol (kw_obarray, symbol);
- vcell = scm_sym2ovcell_soft (symbol, kw_obarray);
- CDR (vcell) = kw;
- }
- return CDR (vcell);
- }
-
- PROC (s_keyword_p, "keyword?", 1, 0, 0, scm_keyword_p);
- #ifdef __STDC__
- SCM
- scm_keyword_p (SCM obj)
- #else
- SCM
- scm_keyword_p (obj)
- SCM obj;
- #endif
- {
- return ( (NIMP(obj) && KEYWORDP (obj))
- ? BOOL_T
- : BOOL_F);
- }
-
-
-
- PROC (s_keyword_symbol, "keyword-symbol", 1, 0, 0, scm_keyword_symbol);
- #ifdef __STDC__
- SCM
- scm_keyword_symbol (SCM kw)
- #else
- SCM
- scm_keyword_symbol (kw)
- SCM kw;
- #endif
- {
- ASSERT (NIMP (kw) && KEYWORDP (kw), kw, ARG1, s_keyword_symbol);
- return CDR (kw);
- }
-
-
-
-
- #ifdef __STDC__
- void
- scm_init_kw (void)
- #else
- void
- scm_init_kw ()
- #endif
- {
- scm_tc16_kw = scm_newsmob (&kw_smob);
- kw_obarray = scm_make_vector (MAKINUM (256), EOL);
- #include "kw.x"
- }
-
-