From 4687dad975105144fd04827ca525a6272102b9d0 Mon Sep 17 00:00:00 2001
From: Kaz Kylheku <kaz@kylheku.com>
Date: Wed, 6 Mar 2019 21:30:00 -0800
Subject: New macro: defset.

* lisplib.c (defset_instantiate, defset_set_entries): New
static functions.
(lisplib_init): Register auto-load of defset.tl, keyed on
defset symbol.

* share/txr/stdlib/defset.tl: New file.

* share/txr/stdlib/paramt.tl (param-parser-base opt-syms):
New method.

* txr.1: Documented.
---
 lisplib.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'lisplib.c')

diff --git a/lisplib.c b/lisplib.c
index 0ef52934..a3f0e9f6 100644
--- a/lisplib.c
+++ b/lisplib.c
@@ -757,6 +757,23 @@ static val save_exe_set_entries(val dlt, val fun)
   return nil;
 }
 
+static val defset_instantiate(val set_fun)
+{
+  funcall1(set_fun, nil);
+  load(format(nil, lit("~adefset"), stdlib_path, nao));
+  return nil;
+}
+
+static val defset_set_entries(val dlt, val fun)
+{
+  val name[] = {
+    lit("defset"),
+    nil
+  };
+  set_dlt_entries(dlt, name, fun);
+  return nil;
+}
+
 val dlt_register(val dlt,
                  val (*instantiate)(val),
                  val (*set_entries)(val, val))
@@ -806,6 +823,7 @@ void lisplib_init(void)
     dlt_register(dl_table, op_instantiate, op_set_entries);
 
   dlt_register(dl_table, save_exe_instantiate, save_exe_set_entries);
+  dlt_register(dl_table, defset_instantiate, defset_set_entries);
 
   reg_fun(intern(lit("try-load"), system_package), func_n1(lisplib_try_load));
 }
-- 
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