Adding end-of-line highlighting as an option

README.md

@@ -45,7 +45,8 @@ as "invalid", "comment"... in "File Settings - User":
 ```
 {
 	"highlight_whitespaces_space_highlight_scope_name": "invalid",
-	"highlight_whitespaces_tab_highlight_scope_name": "invalid"
+	"highlight_whitespaces_tab_highlight_scope_name": "invalid",
+	"highlight_whitespaces_eol_highlight_scope_name": "invalid"
 }
 ```
 

highlight_whitespaces.py

@@ -10,10 +10,12 @@ Config summary (see README.md for details):
     {
     "highlight_whitespaces_space_highlight_scope_name": "invalid",
     "highlight_whitespaces_tab_highlight_scope_name": "invalid",
+    "highlight_whitespaces_eol_highlight_scope_name": "invalid",
     "highlight_whitespaces_file_max_size": 1048576,
     "highlight_whitespaces_enabled": true,
     "highlight_whitespaces_check_spaces": true,
     "highlight_whitespaces_check_tabs": true,
+    "highlight_whitespaces_check_eol": true,
     "highlight_whitespaces_single_space": false,
     "highlight_last_whitespace": true
     }
@@ -33,6 +35,7 @@ DEFAULT_COLOR_SCOPE_NAME = "invalid"
 DEFAULT_IS_ENABLED = True
 DEFAULT_CHECK_SPACES = True
 DEFAULT_SINGLE_SPACE = False
+DEFAULT_CHECK_EOL = True
 DEFAULT_CHECK_TABS = True
 DEFAULT_LAST_WHITESPACE = False
 
@@ -66,6 +69,8 @@ def find_whitespaces_spaces(view):
 def find_whitespaces_tabs(view):
     return view.find_all('\t+')
 
+def find_whitespaces_eol(view):
+    return view.find_all('[\t ]+$')
 
 # Highlight whitespaces
 def highlight_whitespaces(view):
@@ -77,6 +82,8 @@ def highlight_whitespaces(view):
                                        DEFAULT_COLOR_SCOPE_NAME)
     tab_scope_name = hws_settings.get('highlight_whitespaces_tab_highlight_scope_name',
                                        DEFAULT_COLOR_SCOPE_NAME)
+    eol_scope_name = hws_settings.get('highlight_whitespaces_eol_highlight_scope_name',
+                                       DEFAULT_COLOR_SCOPE_NAME)
     if view.size() <= max_size and not is_find_results(view):
         if hws_settings.get('highlight_whitespaces_check_spaces', DEFAULT_CHECK_SPACES):
             space_regions = find_whitespaces_spaces(view)
@@ -88,6 +95,11 @@ def highlight_whitespaces(view):
             view.add_regions('WhitespacesHighlightListener2',
                              tab_regions, tab_scope_name, '',
                              sublime.DRAW_EMPTY)
+        if hws_settings.get('highlight_whitespaces_check_eol', DEFAULT_CHECK_EOL):
+            eol_regions = find_whitespaces_eol(view)
+            view.add_regions('WhitespacesHighlightListener3',
+                             eol_regions, eol_scope_name, '',
+                             sublime.DRAW_EMPTY)
 
 
 # Clear all white spaces
@@ -95,6 +107,7 @@ def clear_whitespaces_highlight(window):
     for view in window.views():
         view.erase_regions('WhitespacesHighlightListener')
         view.erase_regions('WhitespacesHighlightListener2')
+        view.erase_regions('WhitespacesHighlightListener3')
 
 
 # Toggle the event listner on or off
@@ -138,3 +151,15 @@ class WhitespacesHighlightListener2(sublime_plugin.EventListener):
         if hws_enabled:
             highlight_whitespaces(view)
 
+class WhitespacesHighlightListener3(sublime_plugin.EventListener):
+    def on_modified(self, view):
+        if hws_enabled:
+            highlight_whitespaces(view)
+
+    def on_activated(self, view):
+        if hws_enabled:
+            highlight_whitespaces(view)
+
+    def on_load(self, view):
+        if hws_enabled:
+            highlight_whitespaces(view)

highlight_whitespaces.sublime-settings

@@ -5,6 +5,9 @@
 // Tabs color is determined by scope (default, "invalid")
 //	"highlight_whitespaces_tab_highlight_scope_name": "Whitespaces.tab.highlight",
 
+// End-of-line color is determined by scope (default, "invalid")
+//	"highlight_whitespaces_eol_highlight_scope_name": "Whitespaces.eol.highlight",
+
 // Max file size to search
 	"highlight_whitespaces_file_max_size": 1048576,
 
@@ -17,6 +20,9 @@
 // Whether to check for tabs
 	"highlight_whitespaces_check_tabs": true,
 
+// Whether to check for end-of-line whitespace
+	"highlight_whitespaces_check_eol": true,
+
 // Allow the highlighting of the last whitespace, one or more time
 	"highlight_last_whitespace": true
 }