-/* Copyright (C) 1995,1996,1997,1998, 1999, 2000 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, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307 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. */
-
-/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
- gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
-
-\f
-
-#include <stdio.h>
-#include "libguile/_scm.h"
-#include "libguile/ports.h"
-#include "libguile/root.h"
-#include "libguile/smob.h"
-#include "libguile/vectors.h"
-
-#include "libguile/validate.h"
-#include "libguile/keywords.h"
-\f
-
-static int
-prin_keyword (SCM exp,SCM port,scm_print_state *pstate)
-{
- scm_puts ("#:", port);
- scm_puts(1 + SCM_CHARS (SCM_CDR (exp)), port);
- return 1;
-}
-
-int scm_tc16_keyword;
-
-
-SCM_DEFINE (scm_make_keyword_from_dash_symbol, "make-keyword-from-dash-symbol", 1, 0, 0,
- (SCM symbol),
- "Make a keyword object from a @var{symbol} that starts with a dash.")
-#define FUNC_NAME s_scm_make_keyword_from_dash_symbol
-{
- SCM vcell;
-
- SCM_ASSERT (SCM_SYMBOLP (symbol)
- && ('-' == SCM_SYMBOL_CHARS(symbol)[0]),
- symbol, SCM_ARG1, FUNC_NAME);
-
- SCM_DEFER_INTS;
- vcell = scm_sym2ovcell_soft (symbol, scm_keyword_obarray);
- if (SCM_FALSEP (vcell))
- {
- SCM keyword;
- SCM_NEWSMOB (keyword, scm_tc16_keyword, SCM_UNPACK (symbol));
- scm_intern_symbol (scm_keyword_obarray, symbol);
- vcell = scm_sym2ovcell_soft (symbol, scm_keyword_obarray);
- SCM_SETCDR (vcell, keyword);
- }
- SCM_ALLOW_INTS;
- return SCM_CDR (vcell);
-}
-#undef FUNC_NAME
-
-SCM
-scm_c_make_keyword (char *s)
-{
- SCM vcell;
- char *buf = scm_must_malloc (strlen (s) + 2, "keyword");
- buf[0] = '-';
- strcpy (buf + 1, s);
- vcell = scm_sysintern0 (buf);
- scm_must_free (buf);
- return scm_make_keyword_from_dash_symbol (SCM_CAR (vcell));
-}
-
-SCM_DEFINE (scm_keyword_p, "keyword?", 1, 0, 0,
- (SCM obj),
- "Returns @code{#t} if the argument @var{obj} is a keyword, else @code{#f}.")
-#define FUNC_NAME s_scm_keyword_p
-{
- return SCM_BOOL(SCM_KEYWORDP (obj));
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_keyword_dash_symbol, "keyword-dash-symbol", 1, 0, 0,
- (SCM keyword),
- "Return the dash symbol for @var{keyword}.\n"
- "This is the inverse of @code{make-keyword-from-dash-symbol}.")
-#define FUNC_NAME s_scm_keyword_dash_symbol
-{
- SCM_VALIDATE_KEYWORD (1,keyword);
- return SCM_CDR (keyword);
-}
-#undef FUNC_NAME
-
-
-
-void
-scm_init_keywords ()
-{
- scm_tc16_keyword = scm_make_smob_type_mfpe ("keyword", 0,
- scm_markcdr, NULL, prin_keyword, NULL);
-
- scm_keyword_obarray = scm_make_vector (SCM_MAKINUM (256), SCM_EOL);
-#include "libguile/keywords.x"
-}
-
-
-/*
- Local Variables:
- c-file-style: "gnu"
- End:
-*/
+/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2003 Free Software Foundation, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+\f
+
+#include <string.h>
+
+#include "libguile/_scm.h"
+#include "libguile/ports.h"
+#include "libguile/root.h"
+#include "libguile/smob.h"
+#include "libguile/hashtab.h"
+
+#include "libguile/validate.h"
+#include "libguile/keywords.h"
+\f
+
+scm_t_bits scm_tc16_keyword;
+
+static int
+keyword_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED)
+{
+ SCM symbol = SCM_KEYWORDSYM (exp);
+
+ scm_puts ("#:", port);
+ scm_print_symbol_name (SCM_SYMBOL_CHARS (symbol) + 1,
+ SCM_SYMBOL_LENGTH (symbol) - 1,
+ port);
+ scm_remember_upto_here_1 (symbol);
+ return 1;
+}
+
+SCM_DEFINE (scm_make_keyword_from_dash_symbol, "make-keyword-from-dash-symbol", 1, 0, 0,
+ (SCM symbol),
+ "Make a keyword object from a @var{symbol} that starts with a dash.")
+#define FUNC_NAME s_scm_make_keyword_from_dash_symbol
+{
+ SCM keyword;
+
+ SCM_ASSERT (SCM_SYMBOLP (symbol)
+ && ('-' == SCM_SYMBOL_CHARS(symbol)[0]),
+ symbol, SCM_ARG1, FUNC_NAME);
+
+ SCM_DEFER_INTS;
+ keyword = scm_hashq_ref (scm_keyword_obarray, symbol, SCM_BOOL_F);
+ if (SCM_FALSEP (keyword))
+ {
+ SCM_NEWSMOB (keyword, scm_tc16_keyword, SCM_UNPACK (symbol));
+ scm_hashq_set_x (scm_keyword_obarray, symbol, keyword);
+ }
+ SCM_ALLOW_INTS;
+ return keyword;
+}
+#undef FUNC_NAME
+
+SCM
+scm_c_make_keyword (char *s)
+{
+ char *buf = scm_malloc (strlen (s) + 2);
+ SCM symbol;
+
+ buf[0] = '-';
+ strcpy (buf + 1, s);
+ symbol = scm_str2symbol (buf);
+ free (buf);
+
+ return scm_make_keyword_from_dash_symbol (symbol);
+}
+
+SCM_DEFINE (scm_keyword_p, "keyword?", 1, 0, 0,
+ (SCM obj),
+ "Return @code{#t} if the argument @var{obj} is a keyword, else\n"
+ "@code{#f}.")
+#define FUNC_NAME s_scm_keyword_p
+{
+ return SCM_BOOL (SCM_KEYWORDP (obj));
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_keyword_dash_symbol, "keyword-dash-symbol", 1, 0, 0,
+ (SCM keyword),
+ "Return the dash symbol for @var{keyword}.\n"
+ "This is the inverse of @code{make-keyword-from-dash-symbol}.")
+#define FUNC_NAME s_scm_keyword_dash_symbol
+{
+ SCM_VALIDATE_KEYWORD (1, keyword);
+ return SCM_KEYWORDSYM (keyword);
+}
+#undef FUNC_NAME
+
+
+
+void
+scm_init_keywords ()
+{
+ scm_tc16_keyword = scm_make_smob_type ("keyword", 0);
+ scm_set_smob_mark (scm_tc16_keyword, scm_markcdr);
+ scm_set_smob_print (scm_tc16_keyword, keyword_print);
+
+ scm_keyword_obarray = scm_c_make_hash_table (0);
+#include "libguile/keywords.x"
+}
+
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff