From fee8a23d2daffb68f1a35f0bc1f1ceb4e2b2daf1 Mon Sep 17 00:00:00 2001
From: LFDM <1986gh@gmail.com>
Date: Fri, 31 Jan 2014 16:18:14 +0100
Subject: [PATCH] Retains the unnamed register during jumps

---
 plugin/UltiSnips/__init__.py | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/plugin/UltiSnips/__init__.py b/plugin/UltiSnips/__init__.py
index 575eae6..b63849e 100755
--- a/plugin/UltiSnips/__init__.py
+++ b/plugin/UltiSnips/__init__.py
@@ -553,8 +553,13 @@ class SnippetManager(object):
         self._supertab_keys = None
         self._csnippets = []
 
+        # needed to retain the unnamed register at all times
+        self._unnamed_reg_cached = False
+        self._last_placeholder = None
+
         self.reset()
 
+
     @err_to_scratch_buffer
     def reset(self, test_error=False):
         self._vstate = VimState()
@@ -832,10 +837,23 @@ class SnippetManager(object):
                 self._current_snippet_is_done()
                 jumped = self._jump(backwards)
         if jumped:
+            self._cache_unnamed_register()
             self._vstate.remember_position()
             self._ignore_movements = True
         return jumped
 
+    def _cache_unnamed_register(self):
+        self._unnamed_reg_cached = True
+        unnamed_reg = _vim.eval('@"')
+        if self._last_placeholder != unnamed_reg:
+          self._unnamed_reg_cache = _vim.eval('@"')
+        self._last_placeholder = self._ctab._initial_text
+
+    def restore_unnamed_register(self):
+        if self._unnamed_reg_cached:
+            _vim.command( "let @\"='%s'" % self._unnamed_reg_cache)
+            self._unnamed_register_cached = False
+
     def _handle_failure(self, trigger):
         """
         Mainly make sure that we play well with SuperTab