glasses.el enhancement

[Milan Zamazal]

2005-09-15  Milan Zamazal  <address@hidden>

        * progmodes/glasses.el (glasses-make-readable): If
        glasses-separator differs from underscore, put appropriate
        overlays over underscore separators.
        (glasses-convert-to-unreadable): If glasses-separator differs from
        underscore, try to convert corresponding separators to
        underscores.

*** glasses.el.orig     Mon Jul  4 18:59:19 2005
--- glasses.el  Thu Sep 15 09:36:55 2005
***************
*** 195,200 ****
--- 195,210 ----
                           (looking-at glasses-uncapitalize-regexp))))
              (overlay-put o 'invisible t)
              (overlay-put o 'after-string (downcase (match-string n))))))
+         ;; Separator change
+         (unless (string= glasses-separator "_")
+           (goto-char beg)
+           (while (re-search-forward "[a-zA-Z0-9]\\(_+\\)[a-zA-Z0-9]" end t)
+             (goto-char (match-beginning 1))
+             (while (eql (char-after) ?\_)
+               (let ((o (glasses-make-overlay (point) (1+ (point)))))
+                 ;; `concat' ensures the character properties won't merge
+                 (overlay-put o 'display (concat glasses-separator)))
+               (forward-char))))
        ;; Parentheses
        (when glasses-separate-parentheses-p
          (goto-char beg)
***************
*** 227,232 ****
--- 237,249 ----
          (let ((n (if (match-string 1) 1 2)))
            (replace-match "" t nil nil n)
            (goto-char (match-end n))))
+         (unless (string= glasses-separator "_")
+           (goto-char (point-min))
+           (while (re-search-forward (format "[a-zA-Z0-9]\\(%s+\\)[a-zA-Z0-9]"
+                                             separator)
+                                     nil t)
+             (replace-match "_" nil nil nil 1)
+             (goto-char (match-beginning 1))))
        (when glasses-separate-parentheses-p
          (goto-char (point-min))
          (while (re-search-forward "[a-zA-Z]_*\\( \\)\(" nil t)