Support !-keysections, don't bind leave-mode in normal mode.

qutebrowser/config/configdata.py

@@ -797,6 +797,10 @@ KEY_FIRST_COMMENT = """
 # All blank lines and lines starting with '#' are ignored.
 # Inline-comments are not permitted.
 #
+# keymode is a comma separated list of modes in which the keybinding should be
+# active. If keymode starts with !, the keybinding is active in all modes
+# except the listed modes.
+#
 # For special keys (can't be part of a keychain), enclose them in `<`...`>`.
 # For modifiers, you can use either `-` or `+` as delimiters, and these names:
 #
@@ -854,7 +858,7 @@ KEY_SECTION_DESC = {
 
 
 KEY_DATA = collections.OrderedDict([
-    ('all', collections.OrderedDict([
+    ('!normal', collections.OrderedDict([
         ('leave-mode', ['<Escape>', '<Ctrl-[>']),
     ])),
 

qutebrowser/config/keyconfparser.py

@@ -175,7 +175,15 @@ class KeyConfigParser(QObject):
 
     def _normalize_sectname(self, s):
         """Normalize a section string like 'foo, bar,baz' to 'bar,baz,foo'."""
-        return ','.join(sorted(s.split(',')))
+        if s.startswith('!'):
+            inverted = True
+            s = s[1:]
+        else:
+            inverted = False
+        sections = ','.join(sorted(s.split(',')))
+        if inverted:
+            sections = '!' + sections
+        return sections
 
     def _load_default(self):
         """Load the built-in default keybindings."""
@@ -246,8 +254,14 @@ class KeyConfigParser(QObject):
         """Get a dict with all merged keybindings for a section."""
         bindings = {}
         for sectstring, d in self.keybindings.items():
+            if sectstring.startswith('!'):
+                inverted = True
+                sectstring = sectstring[1:]
+            else:
+                inverted = False
             sects = [s.strip() for s in sectstring.split(',')]
-            if any(s == section for s in sects):
+            matches = any(s == section for s in sects)
+            if (not inverted and matches) or (inverted and not matches):
                 bindings.update(d)
         try:
             bindings.update(self.keybindings['all'])