split-str gains ability to keep separating pieces.

* eval.c (eval_init): Register split-str to split_str_keep,
with optional argument.

* lib.c (split_str_keep): New function, formed from
split_str, with third argument.
(split_str): Reduced to wrapper around split_str_keep.
Thus we don't have to update umpteen existing calls
with an extra nil parameter.

* lib.h (split_str_keep): Declared.

* txr.1: Documented new optional argument of split-str.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib.h b/lib.h
index 179c0c66..0ec09a74 100644
--- a/lib.h
+++ b/lib.h
@@ -716,6 +716,7 @@ val sub_str(val str_in, val from_num, val to_num);
 val cat_str(val list, val sep);
 val scat(val sep, ...);
 val split_str(val str, val sep);
+val split_str_keep(val str, val sep, val keep_sep);
 val split_str_set(val str, val set);
 val tok_str(val str, val tok_regex, val keep_sep);
 val tok_where(val str, val tok_regex);