Extensions: use str.casefold for case insensitive search

`str.casefold` is intended for case insensitive string matching and
finds more matches with some unicode characters.

scripts/addons_core/bl_pkg/bl_extension_ops.py

@@ -253,15 +253,15 @@ def lock_result_any_failed_with_report(op, lock_result, report_type='ERROR'):
     return any_errors
 
 
-def pkg_info_check_exclude_filter_ex(name, tagline, search_lower):
+def pkg_info_check_exclude_filter_ex(name, tagline, search_casefold):
     return (
-        (search_lower in name.lower() or search_lower in iface_(name).lower()) or
-        (search_lower in tagline.lower() or search_lower in iface_(tagline).lower())
+        (search_casefold in name.casefold() or search_casefold in iface_(name).casefold()) or
+        (search_casefold in tagline.casefold() or search_casefold in iface_(tagline).casefold())
     )
 
 
-def pkg_info_check_exclude_filter(item, search_lower):
-    return pkg_info_check_exclude_filter_ex(item.name, item.tagline, search_lower)
+def pkg_info_check_exclude_filter(item, search_casefold):
+    return pkg_info_check_exclude_filter_ex(item.name, item.tagline, search_casefold)
 
 
 def extension_theme_enable_filepath(filepath):
@@ -667,7 +667,7 @@ def _extensions_repo_from_directory_and_report(directory, report_fn):
 def _pkg_marked_by_repo(pkg_manifest_all):
     # NOTE: pkg_manifest_all can be from local or remote source.
     wm = bpy.context.window_manager
-    search_lower = wm.extension_search.lower()
+    search_casefold = wm.extension_search.casefold()
     filter_by_type = blender_filter_by_type_map[wm.extension_type]
 
     repo_pkg_map = {}
@@ -683,7 +683,7 @@ def _pkg_marked_by_repo(pkg_manifest_all):
             continue
         if filter_by_type and (filter_by_type != item.type):
             continue
-        if search_lower and not pkg_info_check_exclude_filter(item, search_lower):
+        if search_casefold and not pkg_info_check_exclude_filter(item, search_casefold):
             continue
 
         pkg_list = repo_pkg_map.get(repo_index)

scripts/addons_core/bl_pkg/bl_extension_ui.py

@@ -363,7 +363,7 @@ def addons_panel_draw_items(
         *,
         addon_modules,  # `Dict[str, ModuleType]`
         used_addon_module_name_map,  # `Dict[str, bpy.types.Addon]`
-        search_lower,  # `str`
+        search_casefold,  # `str`
         addon_tags_exclude,  # `Set[str]`
         enabled_only,  # `bool`
         addon_extension_manifest_map,  # `Dict[str, PkgManifest_Normalized]`
@@ -415,11 +415,11 @@ def addons_panel_draw_items(
                 item_tracker_url = bl_info.get("tracker_url")
             del bl_info
 
-        if search_lower and (
+        if search_casefold and (
                 not pkg_info_check_exclude_filter_ex(
                     item_name,
                     item_description,
-                    search_lower,
+                    search_casefold,
                 )
         ):
             continue
@@ -490,7 +490,7 @@ def addons_panel_draw_items(
 def addons_panel_draw_impl(
         self,
         context,  # `bpy.types.Context`
-        search_lower,  # `str`
+        search_casefold,  # `str`
         addon_tags_exclude,  # `Set[str]`
         enabled_only,  # `bool`
 ):
@@ -553,7 +553,7 @@ def addons_panel_draw_impl(
         context,
         addon_modules=addon_modules,
         used_addon_module_name_map=used_addon_module_name_map,
-        search_lower=search_lower,
+        search_casefold=search_casefold,
         addon_tags_exclude=addon_tags_exclude,
         enabled_only=enabled_only,
         addon_extension_manifest_map=addon_extension_manifest_map,
@@ -630,7 +630,7 @@ def addons_panel_draw(panel, context):
     addons_panel_draw_impl(
         panel,
         context,
-        wm.addon_search.lower(),
+        wm.addon_search.casefold(),
         addon_tags_exclude,
         view.show_addons_enabled_only,
     )
@@ -787,7 +787,7 @@ def extensions_map_from_legacy_addons_reverse_lookup(pkg_id):
 def extensions_panel_draw_impl(
         self,
         context,  # `bpy.types.Context`
-        search_lower,   # `str`
+        search_casefold,   # `str`
         filter_by_type,  # `str`
         extension_tags_exclude,  # `Set[str]`
         enabled_only,  # `bool`
@@ -916,7 +916,7 @@ def extensions_panel_draw_impl(
             item = item_local or item_remote
             if filter_by_type and (filter_by_type != item.type):
                 continue
-            if search_lower and (not pkg_info_check_exclude_filter(item, search_lower)):
+            if search_casefold and (not pkg_info_check_exclude_filter(item, search_casefold)):
                 continue
 
             is_installed = item_local is not None
@@ -1492,7 +1492,7 @@ def extensions_panel_draw(panel, context):
     extensions_panel_draw_impl(
         panel,
         context,
-        wm.extension_search.lower(),
+        wm.extension_search.casefold(),
         blender_filter_by_type_map[wm.extension_type],
         extension_tags_exclude,
         wm.extension_enabled_only,

scripts/startup/bl_ui/space_userpref.py

@@ -1710,7 +1710,7 @@ class USERPREF_UL_extension_repos(UIList):
             range(len(items)),
             key=lambda i: (
                 items[i].use_remote_url is False,
-                items[i].name.lower(),
+                items[i].name.casefold(),
             )
         )):
             indices[orig_index] = index
@@ -2441,7 +2441,7 @@ class USERPREF_PT_addons(AddOnPanel, Panel):
 
         show_enabled_only = prefs.view.show_addons_enabled_only
         filter = wm.addon_filter
-        search = wm.addon_search.lower()
+        search = wm.addon_search.casefold()
         support = wm.addon_support
 
         # initialized on demand
@@ -2469,11 +2469,11 @@ class USERPREF_PT_addons(AddOnPanel, Panel):
                 continue
 
             if search and not (
-                    (search in bl_info["name"].lower() or
-                     search in iface_(bl_info["name"]).lower()) or
-                    (bl_info["author"] and (search in bl_info["author"].lower())) or
-                    ((filter == "All") and (search in bl_info["category"].lower() or
-                                            search in iface_(bl_info["category"]).lower()))
+                    (search in bl_info["name"].casefold() or
+                     search in iface_(bl_info["name"]).casefold()) or
+                    (bl_info["author"] and (search in bl_info["author"].casefold())) or
+                    ((filter == "All") and (search in bl_info["category"].casefold() or
+                                            search in iface_(bl_info["category"]).casefold()))
             ):
                 continue