# File lib_core/rucy/message.rb, line 63 def delete_header(name, pos=nil) normalized_name = Message.normalize_header(name) if (pos) then if (value_list = @header[normalized_name]) then del_val = value_list.delete_at(pos) if (value_list.empty?) then @header.delete(normalized_name) end return del_val end else return @header.delete(normalized_name) end nil end