restrict mark names to alphanumeric + underscores - nerdtree

commit 990706b72518f7f387afcefc1a1750a23df24cf7
parent 6e60ecfee10d25658db33b47e88e859c86079085
Author: Martin Grenfell <martin_grenfell@msn.com>
Date:   Fri,  6 Jun 2008 23:33:01 +1200

restrict mark names to alphanumeric + underscores

Diffstat:
M plugin/NERD_tree.vim  | 5 +++++

1 file changed, 5 insertions(+), 0 deletions(-)
diff --git a/plugin/NERD_tree.vim b/plugin/NERD_tree.vim
@@ -2771,6 +2771,11 @@ endfunction
 " FUNCTION: s:MarkNode(name) {{{2
 " Associate the current node with the given name
 function! s:MarkNode(name)
+    if a:name !~ '^[0-9a-zA-Z_]*$'
+        call s:Echo("Marks must be named using numbers, letters and underscores only")
+        return
+    endif
+
     let currentNode = s:GetSelectedNode()
     if currentNode != {}
         let marks = s:GetMarks()