I need to see, how many characters contains my text, as I type. I found this pages of Emacs Wiki: Word count, and there is a solution very close to what I need: I used the second solution from this page (Show the number of words in the mode-line), because it shows the amount of characters too.
But it doesn't count spaces. Is there any solution, that will show amount of characters including spaces in mode-line? Ideally, with setting target amount of characters (but this is not necessary).