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-rw-r--r--libguile/procprop.c155
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diff --git a/libguile/procprop.c b/libguile/procprop.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"
+
+
+
+static SCM
+scm_stand_in_scm_proc(proc)
+ SCM proc;
+{
+ SCM answer;
+ answer = scm_assoc (proc, scm_stand_in_procs);
+ if (answer == SCM_BOOL_F)
+ {
+ answer = scm_closure (scm_listify (SCM_EOL, SCM_BOOL_F, SCM_UNDEFINED),
+ SCM_EOL);
+ scm_stand_in_procs = scm_cons (scm_cons (proc, answer),
+ scm_stand_in_procs);
+ }
+ else
+ answer = SCM_CDR (answer);
+ return answer;
+}
+
+SCM_PROC(s_procedure_properties, "procedure-properties", 1, 0, 0, scm_procedure_properties);
+#ifdef __STDC__
+SCM
+scm_procedure_properties (SCM proc)
+#else
+SCM
+scm_procedure_properties (proc)
+ SCM proc;
+#endif
+{
+ SCM_ASSERT (scm_procedure_p (proc), proc, SCM_ARG1, s_procedure_properties);
+ if (!(SCM_NIMP (proc) && SCM_CLOSUREP (proc)))
+ proc = scm_stand_in_scm_proc(proc);
+ return SCM_PROCPROPS (proc);
+}
+
+SCM_PROC(s_set_procedure_properties_x, "set-procedure-properties!", 2, 0, 0, scm_set_procedure_properties_x);
+#ifdef __STDC__
+SCM
+scm_set_procedure_properties_x (SCM proc, SCM new_val)
+#else
+SCM
+scm_set_procedure_properties_x (proc, new_val)
+ SCM proc;
+ SCM new_val;
+#endif
+{
+ if (!(SCM_NIMP (proc) && SCM_CLOSUREP (proc)))
+ proc = scm_stand_in_scm_proc(proc);
+ SCM_ASSERT (SCM_NIMP (proc) && SCM_CLOSUREP (proc), proc, SCM_ARG1, s_set_procedure_properties_x);
+ SCM_PROCPROPS (proc) = new_val;
+ return SCM_UNSPECIFIED;
+}
+
+SCM_PROC(s_procedure_property, "procedure-property", 2, 0, 0, scm_procedure_property);
+#ifdef __STDC__
+SCM
+scm_procedure_property (SCM p, SCM k)
+#else
+SCM
+scm_procedure_property (p, k)
+ SCM p;
+ SCM k;
+#endif
+{
+ SCM assoc;
+ if (!(SCM_NIMP (p) && SCM_CLOSUREP (p)))
+ p = scm_stand_in_scm_proc(p);
+ SCM_ASSERT (scm_procedure_p (p), p, SCM_ARG1, s_procedure_property);
+ assoc = scm_sloppy_assq (k, SCM_PROCPROPS (p));
+ return (SCM_NIMP (assoc) ? SCM_CDR (assoc) : SCM_BOOL_F);
+}
+
+SCM_PROC(s_set_procedure_property_x, "set-procedure-property!", 3, 0, 0, scm_set_procedure_property_x);
+#ifdef __STDC__
+SCM
+scm_set_procedure_property_x (SCM p, SCM k, SCM v)
+#else
+SCM
+scm_set_procedure_property_x (p, k, v)
+ SCM p;
+ SCM k;
+ SCM v;
+#endif
+{
+ SCM assoc;
+ if (!(SCM_NIMP (p) && SCM_CLOSUREP (p)))
+ p = scm_stand_in_scm_proc(p);
+ SCM_ASSERT (SCM_NIMP (p) && SCM_CLOSUREP (p), p, SCM_ARG1, s_set_procedure_property_x);
+ assoc = scm_sloppy_assq (k, SCM_PROCPROPS (p));
+ if (SCM_NIMP (assoc))
+ SCM_SETCDR (assoc, v);
+ else
+ SCM_PROCPROPS (p) = scm_acons (k, v, SCM_PROCPROPS (p));
+ return SCM_UNSPECIFIED;
+}
+
+
+
+#ifdef __STDC__
+void
+scm_init_procprop (void)
+#else
+void
+scm_init_procprop ()
+#endif
+{
+#include "procprop.x"
+}
+