Adding support for mixed tab-and-space detection

Added `highlight_whitespaces_enabled` summary to README

README.md

@@ -33,6 +33,10 @@ menu.
 
 The default toggle highlight shortcut is ```ctrl+alt+w``` (```cmd+alt+w``` for OS X)
 
+### Disable highlighting when Sublime Text starts up
+
+Change `highlight_whitespaces_enabled` from the default of `true` to `false`.
+
 ### Change the highlighting color
 
 One may also change the highlighting color, providing a scope name such
@@ -41,7 +45,9 @@ 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_mixed_highlight_scope_name": "invalid"
 }
 ```
 

highlight_whitespaces.py

@@ -10,10 +10,15 @@ 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
     }
 
@@ -31,7 +36,10 @@ DEFAULT_MAX_FILE_SIZE = 1048576
 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_CHECK_MIXED = True
 DEFAULT_LAST_WHITESPACE = False
 
 #Set whether the plugin is on or off
@@ -39,13 +47,22 @@ hws_settings = sublime.load_settings('highlight_whitespaces.sublime-settings')
 hws_enabled = bool(hws_settings.get('highlight_whitespaces_enabled',
                                                DEFAULT_IS_ENABLED))
 
+def get_settings():
+    s = sublime.load_settings('highlight_whitespaces.sublime-settings')
+    return s
+
 # Determine if the view is a find results view
 def is_find_results(view):
     return view.settings().get('syntax') and "Find Results" in view.settings().get('syntax')
 
 # Return an array of regions matching whitespaces.
 def find_whitespaces_spaces(view):
+    hws_settings = get_settings()
     last_whitespace = bool(hws_settings.get('highlight_last_whitespace',DEFAULT_LAST_WHITESPACE))
+    single_space = bool(hws_settings.get('highlight_whitespaces_single_space',DEFAULT_SINGLE_SPACE))
+    if single_space:
+        regex = ' +'
+    else:
         regex = ' {2,}|\t | \t'
         if last_whitespace:
             regex += '| {1,}$'
@@ -55,15 +72,27 @@ 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 ]+$')
+
+def find_whitespaces_mixed(view):
+    return view.find_all('(\t )|( \t)')
+
 
 # Highlight whitespaces
 def highlight_whitespaces(view):
+    hws_settings = get_settings()
+
     max_size = hws_settings.get('highlight_whitespaces_file_max_size',
                                DEFAULT_MAX_FILE_SIZE)
     space_scope_name = hws_settings.get('highlight_whitespaces_space_highlight_scope_name',
                                        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)
+    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)
@@ -75,6 +104,16 @@ 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)
+        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
@@ -82,6 +121,8 @@ def clear_whitespaces_highlight(window):
     for view in window.views():
         view.erase_regions('WhitespacesHighlightListener')
         view.erase_regions('WhitespacesHighlightListener2')
+        view.erase_regions('WhitespacesHighlightListener3')
+        view.erase_regions('WhitespacesHighlightListener4')
 
 
 # Toggle the event listner on or off
@@ -125,3 +166,28 @@ 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)
+
+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

@@ -5,6 +5,13 @@
 // 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",
+
+// 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,
 
@@ -17,6 +24,12 @@
 // Whether to check for tabs
 	"highlight_whitespaces_check_tabs": true,
 
+// 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
 }