Added documentation generation for valid prefixes to config file generation.

1 files changed, 16 insertions, 7 deletions

diff --git a/qutebrowser/config/configfiles.py b/qutebrowser/config/configfiles.py
index f8566e2d0..78991b5ec 100644
--- a/qutebrowser/config/configfiles.py
+++ b/qutebrowser/config/configfiles.py
@@ -788,6 +788,15 @@ class ConfigPyWriter:
             yield self._line("config.load_autoconfig(False)")
             yield ''
 
+    def _gen_valid_list(self, head: str, valid_list) -> Iterator[str]:
+        yield self._line(head)
+        for val in valid_list:
+            try:
+                desc = valid_list.descriptions[val]
+                yield self._line("#   - {}: {}".format(val, desc))
+            except KeyError:
+                yield self._line("#   - {}".format(val))
+
     def _gen_options(self) -> Iterator[str]:
         """Generate the options part of the config."""
         for pattern, opt, value in self._options:
@@ -801,13 +810,13 @@ class ConfigPyWriter:
 
             valid_values = opt.typ.get_valid_values()
             if valid_values is not None and valid_values.generate_docs:
-                yield self._line("# Valid values:")
-                for val in valid_values:
-                    try:
-                        desc = valid_values.descriptions[val]
-                        yield self._line("#   - {}: {}".format(val, desc))
-                    except KeyError:
-                        yield self._line("#   - {}".format(val))
+                yield from self._gen_valid_list('# Valid Values: \n', valid_values)
+
+            valid_prefixes = opt.typ.get_valid_prefixes()
+            if valid_prefixes is not None and valid_prefixes.generate_docs:
+                yield from self._gen_valid_list(
+                    '# Valid Prefixes (separator is {}): \n'.format(
+                        valid_prefixes.separator), valid_prefixes)
 
             if pattern is None:
                 yield self._line('c.{} = {!r}'.format(opt.name, value))