Fix dialog matching when character_substitute is not set to underscore

Author: tvdstaaij

lib/util.rb

@@ -18,3 +18,7 @@ def get_backup_dir
 def get_media_dir(dialog)
   File.join(get_backup_dir, get_safe_name(dialog['print_name']) + '_files')
 end
+
+def strip_tg_special_chars(print_name)
+  print_name.gsub(/[_@#]/, '')
+end

telegram-history-dump.rb

@@ -128,8 +128,10 @@ def backup_target?(dialog)
   return true if candidates.empty?
   candidates.each do |candidate|
     next unless candidate
-    dialog_name = get_safe_name(dialog['print_name']).upcase
-    candidate_name = get_safe_name(candidate).upcase
+    dialog_name = strip_tg_special_chars(dialog['print_name'])
+    dialog_name = get_safe_name(dialog_name).upcase
+    candidate_name = strip_tg_special_chars(candidate)
+    candidate_name = get_safe_name(candidate_name).upcase
     return true if dialog_name.include?(candidate_name)
   end
   false