1 files changed, 10 insertions, 0 deletions
diff --git a/src/list.c b/src/list.c
index 8c67a09..d823100 100644
--- a/src/list.c
+++ b/src/list.c
@@ -108,6 +108,16 @@ map_list(List *ls, acter f)
     f(*(ls->array+i));
 }
 
+H_ATTR
+void
+map_list_between(List *ls, acter f, doer d)
+{
+  for (NUM i = 0; i < ls->len; i++) {
+    f(*(ls->array+i));
+    if (i + 1 < ls->len) d();
+  }
+}
+
 void
 print_list(List *ls, printer prt)
 {