vimrc(airline): check for,set certain symbols

.vim/vimrc

@@ -126,6 +126,20 @@ let g:airline#parts#ffenc#skip_expected_string='utf-8[unix]'
 " this algorithm works well for /** */ style comments in a tab-indented file.
 let g:airline#extensions#whitespace#mixed_indent_algo = 1
 
+" separator symbols
+let g:airline_left_sep = ''
+let g:airline_right_sep = ''
+let g:airline_left_alt_sep = ''
+let g:airline_right_alt_sep = ''
+
+if !exists('g:airline_symbols')
+	let g:airline_symbols = {}
+endif
+
+let g:airline_symbols.branch = ''
+let g:airline_symbols.colnr = '℅:'
+let g:airline_symbols.readonly = ''
+
 " ale integration
 let g:airline#extensions#ale#enabled = 1
 " nrrwrgn integration