-/* Copyright (C) 1999, 2000, 2001 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. */
-
-
-\f
-
-#include "libguile/_scm.h"
-
-#include "libguile/eval.h"
-#include "libguile/macros.h"
-#include "libguile/root.h"
-
-#include "libguile/validate.h"
-#include "libguile/lang.h"
-
-\f
-
-/* {Multi-language support}
- */
-
-/* Representation of pairs:
- *
- * Since we're going to share data with Scheme, we use EOL instead of nil
- * in all data structures.
- */
-
-#ifdef SCM_ENABLE_ELISP
-#if 0
-
-SCM_DEFINE (scm_nil_cons, "nil-cons", 2, 0, 0,
- (SCM x, SCM y),
- "Create a new cons cell with @var{x} as the car and @var{y} as\n"
- "the cdr, but convert @var{y} to Scheme's end-of-list if it is\n"
- "a LISP nil.")
-#define FUNC_NAME s_scm_nil_cons
-{
- return scm_cons (x, SCM_NIL2EOL (y, y));
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_nil_car, "nil-car", 1, 0, 0,
- (SCM x),
- "Return the car of @var{x}, but convert it to LISP nil if it\n"
- "is Scheme's end-of-list.")
-#define FUNC_NAME s_scm_nil_car
-{
- if (SCM_NILP (x))
- return scm_lisp_nil;
- SCM_VALIDATE_CONS (1,x);
- return SCM_CAR (x);
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_nil_cdr, "nil-cdr", 1, 0, 0,
- (SCM x),
- "Return the cdr of @var{x}, but convert it to LISP nil if it\n"
- "is Scheme's end-of-list.")
-#define FUNC_NAME s_scm_nil_cdr
-{
- if (SCM_NILP (x))
- return scm_lisp_nil;
- SCM_VALIDATE_CONS (1,x);
- return SCM_EOL2NIL (SCM_CDR (x), x);
-}
-#undef FUNC_NAME
-
-/* GJB:FIXME:: why does this return scm_lisp_nil instead of SCM_BOOL_F?
- Could use SCM_BOOL, below, otherwise */
-SCM_DEFINE (scm_null, "null", 1, 0, 0,
- (SCM x),
- "Return LISP's @code{t} if @var{x} is nil in the LISP sense,\n"
- "return LISP's nil otherwise.")
-#define FUNC_NAME s_scm_null
-{
- return (SCM_NILP (x) || SCM_NULLP (x) || SCM_FALSEP (x)) ? scm_lisp_t : scm_lisp_nil;
-}
-#undef FUNC_NAME
-
-SCM
-scm_m_while (SCM exp, SCM env)
-{
- register SCM x = exp = SCM_CDR (exp);
- SCM z = scm_eval_car (x, env);
- while (!SCM_NILP (z) && SCM_NFALSEP (z))
- {
- while (SCM_NNULLP (x = SCM_CDR (x)))
- {
- if (SCM_NIMP (SCM_CAR (x)))
- (*scm_ceval_ptr) (SCM_CAR (x), env);
- }
- z = scm_eval_car (x = exp, env);
- }
- return scm_lisp_nil;
-}
-
-/* GJB:FIXME:: why does this return scm_lisp_nil instead of SCM_BOOL_F?
- Could use SCM_BOOL, below, otherwise */
-SCM_DEFINE1 (scm_nil_eq, "nil-eq", scm_tc7_rpsubr,
- (SCM x, SCM y),
- "Compare @var{x} and @var{y} and return LISP's t if they are\n"
- "@code{eq?}, return LISP's nil otherwise.")
-#define FUNC_NAME s_scm_nil_eq
-{
- return ((SCM_EQ_P (x, y)
- || (SCM_NILP (x) && (SCM_NULLP (y) || SCM_FALSEP (y)))
- || (SCM_NILP (y) && (SCM_NULLP (x) || SCM_FALSEP (x))))
- ? scm_lisp_t
- : scm_lisp_nil);
-}
-#undef FUNC_NAME
-
-#endif /* 0 */
-\f
-
-void
-scm_init_lang ()
-{
-#if 0
-#ifndef SCM_MAGIC_SNARFER
-#include "libguile/lang.x"
-#endif
- scm_make_synt ("nil-while", scm_makacro, scm_m_while);
-#endif
-
- scm_c_define ("%nil", SCM_ELISP_NIL);
-}
-
-#endif /* SCM_ENABLE_ELISP */
-
-/*
- Local Variables:
- c-file-style: "gnu"
- End:
-*/
+/* Copyright (C) 1999, 2000, 2001 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 "libguile/_scm.h"
+
+#include "libguile/eval.h"
+#include "libguile/macros.h"
+#include "libguile/root.h"
+
+#include "libguile/validate.h"
+#include "libguile/lang.h"
+
+\f
+
+/* {Multi-language support}
+ */
+
+#if SCM_ENABLE_ELISP
+
+void
+scm_init_lang ()
+{
+#include "libguile/lang.x"
+
+ scm_c_define ("%nil", SCM_ELISP_NIL);
+}
+
+#endif /* SCM_ENABLE_ELISP */
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff