[fix] issue 266: unicode characters in elk files (#267)

* replace unicode characters in elk files by ascii characters if present

Author: the-hampel

python/triqs_dft_tools/converters/elk.py

@@ -89,7 +89,10 @@ def __init__(self, filename, hdf_filename=None,
         self.misc_subgrp = misc_subgrp
         self.transp_subgrp = transp_subgrp
         self.cont_subgrp = cont_subgrp
-        self.fortran_to_replace = {'D': 'E'}
+        self.fortran_to_replace = {'D': 'E',
+                                   # replaces unicode characters with ascii ones if present
+                                   '┌': '+', '┐': '+', '└': '+', '┘': '+',
+                                   '─': '-', '│': '|'}
 
         # Checks if h5 file is there and repacks it if wanted:
         if (os.path.exists(self.hdf_file) and repacking):