Adding support for mixed tab-and-space detection

README.md

@@ -46,7 +46,8 @@ as "invalid", "comment"... in "File Settings - User":
 {
 	"highlight_whitespaces_space_highlight_scope_name": "invalid",
 	"highlight_whitespaces_tab_highlight_scope_name": "invalid",
-	"highlight_whitespaces_eol_highlight_scope_name": "invalid"
+	"highlight_whitespaces_eol_highlight_scope_name": "invalid",
+	"highlight_whitespaces_mixed_highlight_scope_name": "invalid"
 }
 ```
 

highlight_whitespaces.py

@@ -11,11 +11,13 @@ 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_mixed_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_check_mixed": false,
     "highlight_whitespaces_single_space": false,
     "highlight_last_whitespace": true
     }
@@ -37,6 +39,7 @@ DEFAULT_CHECK_SPACES = True
 DEFAULT_SINGLE_SPACE = False
 DEFAULT_CHECK_EOL = True
 DEFAULT_CHECK_TABS = True
+DEFAULT_CHECK_MIXED = True
 DEFAULT_LAST_WHITESPACE = False
 
 #Set whether the plugin is on or off
@@ -72,6 +75,10 @@ def find_whitespaces_tabs(view):
 def find_whitespaces_eol(view):
     return view.find_all('[\t ]+$')
 
+def find_whitespaces_mixed(view):
+    return view.find_all('(\t )|( \t)')
+
+
 # Highlight whitespaces
 def highlight_whitespaces(view):
     hws_settings = get_settings()
@@ -84,6 +91,8 @@ def highlight_whitespaces(view):
                                        DEFAULT_COLOR_SCOPE_NAME)
     eol_scope_name = hws_settings.get('highlight_whitespaces_eol_highlight_scope_name',
                                        DEFAULT_COLOR_SCOPE_NAME)
+    mixed_scope_name = hws_settings.get('highlight_whitespaces_mixed_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)
@@ -100,6 +109,11 @@ def highlight_whitespaces(view):
             view.add_regions('WhitespacesHighlightListener3',
                              eol_regions, eol_scope_name, '',
                              sublime.DRAW_EMPTY)
+        if hws_settings.get('highlight_whitespaces_check_mixed', DEFAULT_CHECK_MIXED):
+            mixed_regions = find_whitespaces_mixed(view)
+            view.add_regions('WhitespacesHighlightListener4',
+                             mixed_regions, mixed_scope_name, '',
+                             sublime.DRAW_EMPTY)
 
 
 # Clear all white spaces
@@ -108,6 +122,7 @@ def clear_whitespaces_highlight(window):
         view.erase_regions('WhitespacesHighlightListener')
         view.erase_regions('WhitespacesHighlightListener2')
         view.erase_regions('WhitespacesHighlightListener3')
+        view.erase_regions('WhitespacesHighlightListener4')
 
 
 # Toggle the event listner on or off
@@ -163,3 +178,16 @@ class WhitespacesHighlightListener3(sublime_plugin.EventListener):
     def on_load(self, view):
         if hws_enabled:
             highlight_whitespaces(view)
+
+class WhitespacesHighlightListener4(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

@@ -8,6 +8,10 @@
 // End-of-line color is determined by scope (default, "invalid")
 //	"highlight_whitespaces_eol_highlight_scope_name": "Whitespaces.eol.highlight",
 
+// End-of-line color is determined by scope (default, "invalid")
+//	"highlight_whitespaces_mixed_highlight_scope_name": "Whitespaces.eol.highlight",
+
+
 // Max file size to search
 	"highlight_whitespaces_file_max_size": 1048576,
 
@@ -23,6 +27,9 @@
 // Whether to check for end-of-line whitespace
 	"highlight_whitespaces_check_eol": true,
 
+// Whether to check for mixed tabs and spaces
+	"highlight_whitespaces_check_mixed": false,
+
 // Allow the highlighting of the last whitespace, one or more time
 	"highlight_last_whitespace": true
 }