hide '.'-terminated words slightly faster

diff --git a/spray.el b/spray.el
index a34b58fe299e988e10c2e791c9e32b5e50d89740..7d42d01a39dcd0011e50af869c095503f5b8a1a8 100644 (file)
--- a/spray.el
+++ b/spray.el
@@ -1,5 +1,5 @@
 ;; custom
-(defvar spray-freq (/ 60.0 300) "60.0 / WPM")
+(defvar spray-freq (/ 60.0 400) "60.0 / WPM")
 (defvar spray-text-scale 5)
 (defvar spray-orp-face 'error)
 
@@ -58,29 +58,33 @@
 (defun turn-off-spray-mode () (interactive) (spray-mode -1))
 
 (defun spray-next ()
-  (if (not (zerop spray--delay))
-      (setq spray--delay (1- spray--delay))
-    (widen)
-    (if (eobp)
-        (turn-off-spray-mode)
-      (skip-chars-forward "\s\t\n")
-      (let* ((beg (point))
-             (len (skip-chars-forward "^\s\t\n"))
-             (end (point))
-             (orp (+ beg (cl-case len
-                           ((1) 1)
-                           ((2 3 4 5) 2)
-                           ((6 7 8 9) 3)
-                           ((10 11 12 13) 4)
-                           (t 5)))))
-        (setq spray--delay (+ (if (> len 8) 1 0) (cl-case (char-before)
-                                                   ((?. ?! ?\? ?\;) 3)
-                                                   ((?, ?:) 1)
-                                                   (t 0))))
-        (overlay-put spray--padding-overlay
-                     'before-string (make-string (- 5 (- orp beg)) ?\s))
-        (move-overlay spray--padding-overlay beg (1+ beg))
-        (move-overlay spray--orp-overlay (1- orp) orp)
-        (narrow-to-region beg end)))))
+  (cond ((not (zerop spray--delay))
+         (setq spray--delay (1- spray--delay))
+         (when (and (<= spray--delay 2)
+                    (= (char-before) ?.))
+           (narrow-to-region (point) (point))))
+        (t
+         (widen)
+         (if (eobp)
+             (turn-off-spray-mode)
+           (skip-chars-forward "\s\t\n")
+           (let* ((beg (point))
+                  (len (skip-chars-forward "^\s\t\n"))
+                  (end (point))
+                  (orp (+ beg (cl-case len
+                                ((1) 1)
+                                ((2 3 4 5) 2)
+                                ((6 7 8 9) 3)
+                                ((10 11 12 13) 4)
+                                (t 5)))))
+             (setq spray--delay (+ (if (> len 8) 1 0) (cl-case (char-before)
+                                                        ((?. ?! ?\? ?\;) 3)
+                                                        ((?, ?:) 1)
+                                                        (t 0))))
+             (overlay-put spray--padding-overlay
+                          'before-string (make-string (- 5 (- orp beg)) ?\s))
+             (move-overlay spray--padding-overlay beg (1+ beg))
+             (move-overlay spray--orp-overlay (1- orp) orp)
+             (narrow-to-region beg end))))))
 
 (provide 'spray)