-/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2003, 2004 Free Software Foundation, Inc.
- *
+/* Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004,
+ * 2006, 2008, 2009, 2011, 2013 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.
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 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
+ * 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
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
*/
\f
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
#include <string.h>
+#include <stdarg.h>
#include "libguile/_scm.h"
+#include "libguile/async.h"
#include "libguile/ports.h"
#include "libguile/root.h"
#include "libguile/smob.h"
\f
+static SCM keyword_obarray;
+
scm_t_bits scm_tc16_keyword;
#define KEYWORDP(X) (SCM_SMOB_PREDICATE (scm_tc16_keyword, (X)))
static int
keyword_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED)
{
- scm_puts ("#:", port);
+ scm_puts_unlocked ("#:", port);
scm_display (KEYWORDSYM (exp), port);
return 1;
}
SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol, 0, NULL, "symbol");
SCM_CRITICAL_SECTION_START;
- keyword = scm_hashq_ref (scm_keyword_obarray, symbol, SCM_BOOL_F);
+ /* njrev: NEWSMOB and hashq_set_x can raise errors */
+ keyword = scm_hashq_ref (keyword_obarray, symbol, SCM_BOOL_F);
if (scm_is_false (keyword))
{
SCM_NEWSMOB (keyword, scm_tc16_keyword, SCM_UNPACK (symbol));
- scm_hashq_set_x (scm_keyword_obarray, symbol, keyword);
+ scm_hashq_set_x (keyword_obarray, symbol, keyword);
}
SCM_CRITICAL_SECTION_END;
return keyword;
}
SCM
-scm_from_locale_keyword (const char *str)
+scm_from_locale_keyword (const char *name)
+{
+ return scm_symbol_to_keyword (scm_from_locale_symbol (name));
+}
+
+SCM
+scm_from_locale_keywordn (const char *name, size_t len)
+{
+ return scm_symbol_to_keyword (scm_from_locale_symboln (name, len));
+}
+
+SCM
+scm_from_latin1_keyword (const char *name)
{
- return scm_symbol_to_keyword (scm_from_locale_symbol (str));
+ return scm_symbol_to_keyword (scm_from_latin1_symbol (name));
}
SCM
-scm_from_locale_keywordn (const char *str, size_t len)
+scm_from_utf8_keyword (const char *name)
{
- return scm_symbol_to_keyword (scm_from_locale_symboln (str, len));
+ return scm_symbol_to_keyword (scm_from_utf8_symbol (name));
}
+SCM_SYMBOL (scm_keyword_argument_error, "keyword-argument-error");
+
+void
+scm_c_bind_keyword_arguments (const char *subr, SCM rest,
+ scm_t_keyword_arguments_flags flags, ...)
+{
+ va_list va;
+
+ if (SCM_UNLIKELY (!(flags & SCM_ALLOW_NON_KEYWORD_ARGUMENTS)
+ && scm_ilength (rest) % 2 != 0))
+ scm_error (scm_keyword_argument_error,
+ subr, "Odd length of keyword argument list",
+ SCM_EOL, SCM_BOOL_F);
+
+ while (scm_is_pair (rest))
+ {
+ SCM kw_or_arg = SCM_CAR (rest);
+ SCM tail = SCM_CDR (rest);
+
+ if (scm_is_keyword (kw_or_arg) && scm_is_pair (tail))
+ {
+ SCM kw;
+ SCM *arg_p;
+
+ va_start (va, flags);
+ for (;;)
+ {
+ kw = va_arg (va, SCM);
+ if (SCM_UNBNDP (kw))
+ {
+ /* KW_OR_ARG is not in the list of expected keywords. */
+ if (!(flags & SCM_ALLOW_OTHER_KEYS))
+ scm_error_scm (scm_keyword_argument_error,
+ scm_from_locale_string (subr),
+ scm_from_latin1_string
+ ("Unrecognized keyword"),
+ SCM_EOL, scm_list_1 (kw_or_arg));
+ break;
+ }
+ arg_p = va_arg (va, SCM *);
+ if (scm_is_eq (kw_or_arg, kw))
+ {
+ /* We found the matching keyword. Store the
+ associated value and break out of the loop. */
+ *arg_p = SCM_CAR (tail);
+ break;
+ }
+ }
+ va_end (va);
+
+ /* Advance REST. */
+ rest = SCM_CDR (tail);
+ }
+ else
+ {
+ /* The next argument is not a keyword, or is a singleton
+ keyword at the end of REST. */
+ if (!(flags & SCM_ALLOW_NON_KEYWORD_ARGUMENTS))
+ scm_error_scm (scm_keyword_argument_error,
+ scm_from_locale_string (subr),
+ scm_from_latin1_string ("Invalid keyword"),
+ SCM_EOL, scm_list_1 (kw_or_arg));
+
+ /* Advance REST. */
+ rest = tail;
+ }
+ }
+}
+/* njrev: critical sections reviewed so far up to here */
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);
+ keyword_obarray = scm_c_make_hash_table (0);
#include "libguile/keywords.x"
}
HCoop / bpt / guile.git / blobdiff