Merge pull request #9 from gygl09/master

add a variable to control the length of highlighted strings

README.md

@@ -9,8 +9,13 @@ is how Vim search works by default when you enable hlsearch. This extension requ
 "highlight" extension.
 
 To enable:
+
     (require 'highlight)
     (require 'evil-search-highlight-persist)
     (global-evil-search-highlight-persist t)
+
+    ;; To only display string whose length is greater than or equal to 3
+    ;; (setq evil-search-highlight-string-min-len 3)
+
 
 ![IMAGE](http://i.imgur.com/Rky7Gj0.png)

evil-search-highlight-persist.el

@@ -39,6 +39,9 @@
 ;; (require 'evil-search-highlight-persist)
 ;; (global-evil-search-highlight-persist t)
 
+;; To only display string whose length is greater than or equal to 3
+;; (setq evil-search-highlight-string-min-len 3)
+
 
 ;;; Code:
 
@@ -63,14 +66,18 @@
   (interactive)
   (hlt-unhighlight-region-in-buffers (list (current-buffer))))
 
+(defvar evil-search-highlight-string-min-len 1 "min legth")
 (defun evil-search-highlight-persist-mark ()
   (let ((hlt-use-overlays-flag t)
         (hlt-last-face 'evil-search-highlight-persist-highlight-face))
-    (hlt-highlight-regexp-region-in-buffers
-     (car-safe (if isearch-regexp
-                   regexp-search-ring
-                 search-ring))
-     (list (current-buffer)))))
+    (setq tmp nil)
+    (if isearch-regexp
+        (setq tmp (car-safe regexp-search-ring))
+      (setq tmp (car-safe search-ring)))
+    (if (>= (length tmp) evil-search-highlight-string-min-len)
+        (hlt-highlight-regexp-region-in-buffers
+         tmp
+         (list (current-buffer))))))
 
 (defadvice isearch-exit (after isearch--highlight-persist)
   (evil-search-highlight-persist-remove-all)