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-rw-r--r--libguile/kw.c164
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diff --git a/libguile/kw.c b/libguile/kw.c
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+++ b/libguile/kw.c
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+/* Copyright (C) 1995,1996 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 scm_sizet
+free_kw (SCM obj)
+#else
+static scm_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_gen_puts (scm_regular_string, ":", port);
+ scm_gen_puts((SCM_MB_STRINGP(SCM_CDR (exp))
+ ? scm_mb_string
+ : scm_regular_string),
+ 1 + SCM_CHARS (SCM_CDR (exp)),
+ port);
+ return 1;
+}
+
+int scm_tc16_kw;
+
+static scm_smobfuns kw_smob = {scm_markcdr, free_kw, prin_kw, 0};
+
+
+
+SCM_PROC (s_make_keyword_from_dash_symbol, "make-keyword-from-dash-symbol", 1, 0, 0, scm_make_keyword_from_dash_symbol);
+#ifdef __STDC__
+SCM
+scm_make_keyword_from_dash_symbol (SCM symbol)
+#else
+SCM
+scm_make_keyword_from_dash_symbol (symbol)
+ SCM symbol;
+#endif
+{
+ SCM vcell;
+
+ SCM_ASSERT (SCM_NIMP (symbol) && SCM_SYMBOLP(symbol) && ('-' == SCM_CHARS(symbol)[0]),
+ symbol, SCM_ARG1, s_make_keyword_from_dash_symbol);
+
+
+ SCM_DEFER_INTS;
+ vcell = scm_sym2ovcell_soft (symbol, scm_kw_obarray);
+ if (vcell == SCM_BOOL_F)
+ {
+ SCM kw;
+ SCM_NEWCELL(kw);
+ SCM_CAR(kw) = (SCM)scm_tc16_kw;
+ SCM_CDR(kw) = symbol;
+ scm_intern_symbol (scm_kw_obarray, symbol);
+ vcell = scm_sym2ovcell_soft (symbol, scm_kw_obarray);
+ SCM_CDR (vcell) = kw;
+ }
+ SCM_ALLOW_INTS;
+ return SCM_CDR (vcell);
+}
+
+SCM_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 ( (SCM_NIMP(obj) && SCM_KEYWORDP (obj))
+ ? SCM_BOOL_T
+ : SCM_BOOL_F);
+}
+
+
+
+SCM_PROC(s_keyword_dash_symbol, "keyword-dash-symbol", 1, 0, 0, scm_keyword_dash_symbol);
+#ifdef __STDC__
+SCM
+scm_keyword_dash_symbol (SCM kw)
+#else
+SCM
+scm_keyword_dash_symbol (kw)
+ SCM kw;
+#endif
+{
+ SCM_ASSERT (SCM_NIMP (kw) && SCM_KEYWORDP (kw), kw, SCM_ARG1, s_keyword_dash_symbol);
+ return SCM_CDR (kw);
+}
+
+
+
+
+#ifdef __STDC__
+void
+scm_init_kw (void)
+#else
+void
+scm_init_kw ()
+#endif
+{
+ scm_tc16_kw = scm_newsmob (&kw_smob);
+ scm_kw_obarray = scm_make_vector (SCM_MAKINUM (256), SCM_EOL, SCM_UNDEFINED);
+#include "kw.x"
+}
+