just-one-space-region.el

# Works as famous command which is exist in simple.el
# https://github.com/emacs-mirror/emacs/blob/cbc10ec71e9f189e8d6fd5c6927aec4872e0fd96/lisp/simple.el#L957
# + Feature that I implement for function is you can select text as region than it will delete spaces if it's more than 1.
# - Feature: Base function allows you leave (n)Space I don't need this, so it is not exist.

(defun just-one-space-region (begin end)
  "Deletes whitespaces for selected region if they more than one"
  (interactive "r")
  (if (use-region-p)
      (save-excursion
        (narrow-to-region begin end)
        (goto-char (point-min))
        (while (search-forward-regexp " " (point-max) 'NOERROR)
          (progn
            (fixup-whitespace)
            (forward-char)))
        (widen)))
  (fixup-whitespace))

There is currently some bug in the code. I'll update for later.

Sentence:Original `Problem is here`  >> Example example
Expected: Sentence `Problem is here` >> Example example
Result: Sentence `problem is here`>> Example example