From 615f91d2db515ad387abcf7f7f50ef93be10163a Mon Sep 17 00:00:00 2001
From: tv <tv@shackspace.de>
Date: Sun, 4 Jan 2015 14:42:38 +0100
Subject: add missing TreeZipperUtils.hs

---
 TreeZipperUtils.hs | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 TreeZipperUtils.hs

(limited to 'TreeZipperUtils.hs')

diff --git a/TreeZipperUtils.hs b/TreeZipperUtils.hs
new file mode 100644
index 0000000..b6410a3
--- /dev/null
+++ b/TreeZipperUtils.hs
@@ -0,0 +1,12 @@
+module TreeZipperUtils where
+
+import Data.Tree
+import Data.Tree.Zipper
+
+-- Return loc (as parent-like structure) and  parents.
+path :: TreePos Full a -> [(Forest a, a, Forest a)]
+path loc = toParent loc : parents loc
+
+-- Return parent stack compatible form of loc.
+toParent :: TreePos Full a -> (Forest a, a, Forest a)
+toParent loc = (before loc, label loc, after loc)
-- 
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