Add Augeas.transform

[ocaml-augeas.git] / augeas-c.c

diff --git a/augeas-c.c b/augeas-c.c
index f4396cb..160fe34 100644 (file)
--- a/augeas-c.c
+++ b/augeas-c.c
@@ -206,11 +206,11 @@ ocaml_augeas_get (value tv, value pathv)
   int r;
 
   r = aug_get (t, path, &val);
-  if (r == 1) {                        /* Return Some val */
+  if (r == 1 && val) {         /* Return Some val */
     v = caml_copy_string (val);
     optv = caml_alloc (1, 0);
     Field (optv, 0) = v;
-  } else if (r == 0)           /* Return None */
+  } else if (r == 0 || !val)   /* Return None */
     optv = Val_int (0);
   else if (r == -1)            /* Error or multiple matches */
     raise_error (t, "Augeas.get");
@@ -369,3 +369,19 @@ ocaml_augeas_set (value tv, value pathv, value valuev)
 
   CAMLreturn (Val_unit);
 }
+
+/* val transform : t -> string -> string -> transform_mode -> unit */
+CAMLprim value
+ocaml_augeas_transform (value tv, value lensv, value filev, value modev)
+{
+  CAMLparam4 (tv, lensv, filev, modev);
+  augeas_t t = Augeas_t_val (tv);
+  const char *lens = String_val (lensv);
+  const char *file = String_val (filev);
+  const int excl = Int_val (modev) == 1 ? 1 : 0;
+
+  if (aug_transform (t, lens, file, excl) == -1)
+    raise_error (t, "Augeas.transform");
+
+  CAMLreturn (Val_unit);
+}