[mod] clarify the difference of the default category and subgrouping

This PR does no functional change it is just an attempt to make more clear in
the code, what a default category is and what a subcategory is.  The previous
name 'others' leads to confusion with the **category 'other'**.

If a engine is not assigned to a category, the default is assigned::

    DEFAULT_CATEGORY = 'other'

If an engine has only one category and this category is shown as tab in the user
interface, this engine has no further subgrouping::

    NO_SUBGROUPING = 'without further subgrouping'

Related:

- https://github.com/searxng/searxng/issues/1604
- https://github.com/searxng/searxng/pull/1545

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

searx/engines/__init__.py

@@ -45,7 +45,7 @@ ENGINE_DEFAULT_ARGS = {
     "about": {},
 }
 # set automatically when an engine does not have any tab category
-OTHER_CATEGORY = 'other'
+DEFAULT_CATEGORY = 'other'
 
 
 # Defaults for the namespace of an engine module, see :py:func:`load_engine`
@@ -132,7 +132,7 @@ def load_engine(engine_data: dict) -> Optional[Engine]:
     set_loggers(engine, engine_name)
 
     if not any(cat in settings['categories_as_tabs'] for cat in engine.categories):
-        engine.categories.append(OTHER_CATEGORY)
+        engine.categories.append(DEFAULT_CATEGORY)
 
     return engine
 

searx/engines/duckduckgo_weather.py

@@ -36,7 +36,7 @@ about = {
 send_accept_language_header = True
 
 # engine dependent config
-categories = ["others"]
+categories = ["weather"]
 URL = "https://duckduckgo.com/js/spice/forecast/{query}/{lang}"
 
 

searx/engines/wttr.py

@@ -15,7 +15,7 @@ about = {
     "results": "JSON",
 }
 
-categories = ["others"]
+categories = ["weather"]
 
 url = "https://wttr.in/{query}?format=j1&lang={lang}"
 

searx/preferences.py

@@ -17,7 +17,7 @@ from searx.enginelib import Engine
 from searx.plugins import Plugin
 from searx.locales import LOCALE_NAMES
 from searx.webutils import VALID_LANGUAGE_CODE
-from searx.engines import OTHER_CATEGORY
+from searx.engines import DEFAULT_CATEGORY
 
 
 COOKIE_MAX_AGE = 60 * 60 * 24 * 365 * 5  # 5 years
@@ -259,7 +259,7 @@ class EnginesSetting(BooleanChoices):
         choices = {}
         for engine in engines:
             for category in engine.categories:
-                if not category in list(settings['categories_as_tabs'].keys()) + [OTHER_CATEGORY]:
+                if not category in list(settings['categories_as_tabs'].keys()) + [DEFAULT_CATEGORY]:
                     continue
                 choices['{}__{}'.format(engine.name, category)] = not engine.disabled
         super().__init__(default_value, choices)

searx/searxng.msg

@@ -15,8 +15,8 @@ __all__ = [
 
 CONSTANT_NAMES = {
     # Constants defined in other modules
-    'DEFAULT_GROUP_NAME': webutils.DEFAULT_GROUP_NAME,
-    'OTHER_CATEGORY': engines.OTHER_CATEGORY,
+    'NO_SUBGROUPING': webutils.NO_SUBGROUPING,
+    'DEFAULT_CATEGORY': engines.DEFAULT_CATEGORY,
 }
 
 CATEGORY_NAMES = {

searx/templates/simple/preferences.html

@@ -298,18 +298,18 @@
     <p>{{ _('Currently used search engines') }}</p>
     {{ tabs_open() }}
      {% set ns = namespace(checked=true) %}
-     {% for categ in categories_as_tabs + [OTHER_CATEGORY] %}
+     {% for categ in categories_as_tabs + [DEFAULT_CATEGORY] %}
      {{ tab_header('enginetab', 'category' + categ, _(categ), ns.checked )}}
      {% set ns.checked = false %}
-   {% if categ == OTHER_CATEGORY %}
-      <p>{{_('This tab does not show up for search results, but you can search the engines listed here via bangs.')}}</p>
+     {% if categ == DEFAULT_CATEGORY %}
+      <p>{{_('This tab dues not exists in the user interface, but you can search in these engines by its !bangs.')}} <a href="{{ url_for('info', pagename='search-syntax') }}">&#9432;</a></p>
      {% endif %}
     <div class="scrollx">
     <table class="striped table_engines">
       <tr>{{- "" -}}
         <th class="engine_checkbox">{{ _("Allow") }}</th>{{- "" -}}
         <th class="name">{{ _("Engine name") }}</th>{{- "" -}}
-        <th class="shortcut">{{ _("Shortcut") }}</th>{{- "" -}}
+        <th class="shortcut">{{ _("!bang") }}</th>{{- "" -}}
         <th>{{ _("Supports selected language") }}</th>{{- "" -}}
         <th>{{ _("SafeSearch") }}</th>{{- "" -}}
         <th>{{ _("Time range") }}</th>{{- "" -}}

searx/webapp.py

@@ -63,7 +63,7 @@ from searx.settings_defaults import OUTPUT_FORMATS
 from searx.settings_loader import get_default_settings_path
 from searx.exceptions import SearxParameterException
 from searx.engines import (
-    OTHER_CATEGORY,
+    DEFAULT_CATEGORY,
     categories,
     engines,
     engine_shortcuts,
@@ -435,7 +435,7 @@ def render(template_name: str, **kwargs):
     kwargs['method'] = request.preferences.get_value('method')
     kwargs['categories_as_tabs'] = list(settings['categories_as_tabs'].keys())
     kwargs['categories'] = _get_enable_categories(categories.keys())
-    kwargs['OTHER_CATEGORY'] = OTHER_CATEGORY
+    kwargs['DEFAULT_CATEGORY'] = DEFAULT_CATEGORY
 
     # i18n
     kwargs['sxng_locales'] = [l for l in sxng_locales if l[0] in settings['search']['languages']]

searx/webutils.py

@@ -18,7 +18,7 @@ from codecs import getincrementalencoder
 from flask_babel import gettext, format_date
 
 from searx import logger, settings
-from searx.engines import OTHER_CATEGORY
+from searx.engines import DEFAULT_CATEGORY
 
 if TYPE_CHECKING:
     from searx.enginelib import Engine
@@ -222,26 +222,24 @@ def is_flask_run_cmdline():
     return frames[-2].filename.endswith('flask/cli.py')
 
 
-DEFAULT_GROUP_NAME = 'others'
+NO_SUBGROUPING = 'without further subgrouping'
 
 
 def group_engines_in_tab(engines: Iterable[Engine]) -> List[Tuple[str, Iterable[Engine]]]:
-    """Groups an Iterable of engines by their first non tab category"""
+    """Groups an Iterable of engines by their first non tab category (first subgroup)"""
 
-    def get_group(eng):
-        non_tab_categories = [
-            c for c in eng.categories if c not in list(settings['categories_as_tabs'].keys()) + [OTHER_CATEGORY]
-        ]
-        return non_tab_categories[0] if len(non_tab_categories) > 0 else DEFAULT_GROUP_NAME
-
-    groups = itertools.groupby(sorted(engines, key=get_group), get_group)
+    def get_subgroup(eng):
+        non_tab_categories = [c for c in eng.categories if c not in tabs + [DEFAULT_CATEGORY]]
+        return non_tab_categories[0] if len(non_tab_categories) > 0 else NO_SUBGROUPING
 
     def group_sort_key(group):
-        return (group[0] == DEFAULT_GROUP_NAME, group[0].lower())
-
-    sorted_groups = sorted(((name, list(engines)) for name, engines in groups), key=group_sort_key)
+        return (group[0] == NO_SUBGROUPING, group[0].lower())
 
     def engine_sort_key(engine):
         return (engine.about.get('language', ''), engine.name)
 
+    tabs = list(settings['categories_as_tabs'].keys())
+    subgroups = itertools.groupby(sorted(engines, key=get_subgroup), get_subgroup)
+    sorted_groups = sorted(((name, list(engines)) for name, engines in subgroups), key=group_sort_key)
+
     return [(groupname, sorted(engines, key=engine_sort_key)) for groupname, engines in sorted_groups]