Minor improvement to space drawing code

src/source.cpp

@@ -463,28 +463,30 @@ void Source::View::configure() {
     std::set<std::string> out;
     qi::phrase_parse(Config::get().source.show_whitespace_characters.begin(), Config::get().source.show_whitespace_characters.end(), (+(~qi::char_(','))) % ',', qi::space, out);
 
-    auto space_drawer = gtk_source_view_get_space_drawer(gobj());
     int locations = GTK_SOURCE_SPACE_LOCATION_NONE;
-    if(out.count("leading") > 0)
+    int types = GTK_SOURCE_SPACE_TYPE_NONE;
+    for(auto &e : out) {
+      if(e == "leading")
         locations |= GTK_SOURCE_SPACE_LOCATION_LEADING;
-    if(out.count("text") > 0)
+      else if(e == "text")
         locations |= GTK_SOURCE_SPACE_LOCATION_INSIDE_TEXT;
-    if(out.count("trailing") > 0)
+      else if(e == "trailing")
         locations |= GTK_SOURCE_SPACE_LOCATION_TRAILING;
-    if(out.count("all") > 0)
+      else if(e == "all")
         locations |= GTK_SOURCE_SPACE_LOCATION_ALL;
-    int types = GTK_SOURCE_SPACE_TYPE_NONE;
+      else if(e == "space")
-    if(out.count("space") > 0)
         types |= GTK_SOURCE_SPACE_TYPE_SPACE;
-    if(out.count("tab") > 0)
+      else if(e == "tab")
         types |= GTK_SOURCE_SPACE_TYPE_TAB;
-    if(out.count("newline") > 0)
+      else if(e == "newline")
         types |= GTK_SOURCE_SPACE_TYPE_NEWLINE;
-    if(out.count("nbsp") > 0)
+      else if(e == "nbsp")
         types |= GTK_SOURCE_SPACE_TYPE_NBSP;
-    if(out.count("all") > 0)
+      else if(e == "all")
         types |= GTK_SOURCE_SPACE_TYPE_ALL;
+    }
 
+    auto space_drawer = gtk_source_view_get_space_drawer(gobj());
     if(locations != GTK_SOURCE_SPACE_LOCATION_NONE || types != GTK_SOURCE_SPACE_TYPE_NONE) {
       if(locations == GTK_SOURCE_SPACE_LOCATION_NONE)
         locations = GTK_SOURCE_SPACE_LOCATION_ALL;