Allow for whitespace in :SearchInColumn pattern

this allows :SearchInColumn command to work correctly
even when the columns was visually aligned using :ArrangeCol
command

fixes #100

CHANGELOG.md

@@ -87,6 +87,8 @@
   https://github.com/chrisbra/csv.vim/issues/98, thanks!)
 - Allow for better aligning of columns (reported by taylor-peterson in
   https://github.com/chrisbra/csv.vim/issues/99, thanks!)
+- `:SearchInColumn` did not work correctly for the last column, if `:ArrangeColumn`
+  has been used (reported by Xavier Laviron in #100, thanks!)
 
 ## 0.31 Jan 15, 2015
 - supports for Vim 7.3 dropped

ftplugin/csv.vim

@@ -257,8 +257,10 @@ fu! <sid>GetPat(colnr, maxcolnr, pat, allowmore) "{{{3
         endif
     elseif a:colnr == a:maxcolnr
         if !exists("b:csv_fixed_width_cols")
+            " Allow space in front of the pattern, so that it works correctly
+            " even if :Arrange Col has been used #100
             return '^' . <SID>GetColPat(a:colnr - 1,0) .
-                \ '\zs' . a:pat . '\ze' . (a:allowmore ? '' : '$')
+                \ '\s*\zs' . a:pat . '\ze' . (a:allowmore ? '' : '$')
         else
             return '\%' . b:csv_fixed_width_cols[-1] .
                 \ 'c\zs' . a:pat . '\ze' . (a:allowmore ? '' : '$')