[latexila] Completion: fix window placement for empty LaTeX command

[Sébastien Wilmet <swilmet src gnome org>]

commit 9116f0d6a44bc45723eb6833d0c48e2168d3ee02
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Apr 28 19:56:21 2013 +0200

    Completion: fix window placement for empty LaTeX command

 src/completion.vala |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/src/completion.vala b/src/completion.vala
index 422d88d..dbb5b27 100644
--- a/src/completion.vala
+++ b/src/completion.vala
@@ -139,10 +139,17 @@ public class CompletionProvider : GLib.Object, SourceCompletionProvider
         // Custom implementation when in a LaTeX command name.
         iter = context.iter;
 
+        TextIter prev = iter;
+        if (prev.backward_char () && prev.get_char () == '\\')
+        {
+            iter = prev;
+            return true;
+        }
+
         if (! iter.starts_word ())
             iter.backward_visible_word_start ();
 
-        TextIter prev = iter;
+        prev = iter;
         if (prev.backward_char () && prev.get_char () == '\\')
             iter = prev;