Expand the loadable object support.

Provide a simple API for loaded objects to interact with GNU make.  I still
won't guarantee that this API won't change but it's much closer to something
that's supported and provides easy-to-use interfaces with a public header
file.

1 files changed, 49 insertions, 0 deletions

diff --git a/loadapi.c b/loadapi.c
new file mode 100644
index 0000000..3170dd1
--- /dev/null
+++ b/loadapi.c
@@ -0,0 +1,49 @@
+/* API for GNU Make dynamic objects.
+Copyright (C) 2013 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make 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 3 of the License, or (at your option) any later
+version.
+
+GNU Make 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 program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include "gnumake.h"
+
+#include "makeint.h"
+
+#include "filedef.h"
+#include "variable.h"
+
+/* Evaluate a buffer as make syntax.
+   Ideally eval_buffer() will take const char *, but not yet.  */
+void
+gmk_eval (const char *buffer, const gmk_floc *floc)
+{
+  char *s = xstrdup (buffer);
+  eval_buffer (s, floc);
+  free (s);
+}
+
+/* Expand a string and return an allocated buffer.
+   Caller must free() this buffer.  */
+char *
+gmk_expand (const char *ref)
+{
+  return allocated_variable_expand (ref);
+}
+
+/* Register a function to be called from makefiles.  */
+void
+gmk_add_function (const char *name,
+                  char *(*func)(const char *nm, int argc, char **argv),
+                  int min, int max, int expand)
+{
+  define_new_function (reading_file, name, min, max, expand, func);
+}