docs(i18n): noindex legacy /en/ stubs, update README, widen F1 help langs

seto77 · claude · seto77 · commit 2e69f5856770 · 2026-06-26T18:53:05.000+09:00
Follow-ups from a Codex review of the 11-language Pages migration:

- legacy_en_redirects.py: add &lt;meta name="robots" content="noindex"&gt; to the
  /en/ redirect stubs so search engines index the canonical root URL, not the
  redirect stub itself.
- README.md: describe the manual as 11 languages (was English / Japanese) and
  note that the application UI and screenshots remain English / Japanese.
- FormMain.cs: widen manualReadyCultures from {en, ja} to all 11 manual
  languages so F1 opens the matching-language manual (e.g. a German Windows
  opens the German manual even while the UI falls back to English).
  SupportedCultures.Resolve already normalizes culture names to the 11
  canonical locale dirs (de-DE-&gt;de, zh-TW-&gt;zh-Hant, ...), so no raw culture
  name reaches the URL.

Co-Authored-By: Claude Opus 4.8 (1M context) &lt;noreply@anthropic.com&gt;
diff --git a/IPAnalyzer/FormMain.cs b/IPAnalyzer/FormMain.cs
@@ -2893,8 +2893,14 @@ private void ToolStripMenuItemReferenceBackground_Click(object sender, EventArgs
     private static readonly string[] releasedCulturesInIPA = { "en", "ja", "de" };
 
     // 260625Cl 追加: F1/PDF マニュアルが整備済みの言語の allow-list (未整備言語は英語マニュアルへ落とす)。
-    //   公開ゲート (releasedCulturesInIPA) とは別概念 (UI 翻訳済 ≠ マニュアル整備済) だが現状はどちらも en/ja。
-    private static readonly string[] manualReadyCultures = { "en", "ja" };
+    //   公開ゲート (releasedCulturesInIPA) とは別概念 (UI 翻訳済 ≠ マニュアル整備済)。
+    // 260626Cl 変更: GitHub Pages マニュアルを全11言語へ整備したため en/ja → 全11言語へ拡張。
+    //   独語 Windows 等では UI は英語フォールバックでも F1 がその言語のマニュアルを開く。
+    //   cur = SupportedCultures.Current.Name は Resolve() で常にこの11個の正規名へ解決される
+    //   (de-DE→de, pt-BR→pt, zh-CN→zh-Hans, zh-TW→zh-Hant 等。CurrentUICulture 基準)。
+    //   よって raw culture 名は来ず、cur をそのまま比較・URL ディレクトリ名に使ってよい (Codex レビュー確認済)。
+    //   旧: { "en", "ja" }
+    private static readonly string[] manualReadyCultures = { "en", "ja", "de", "fr", "es", "it", "ru", "zh-Hans", "zh-Hant", "ko", "pt" };
 
     // 260625Cl 変更: english/japanese 二択固定 + ライブ切替(Language.Change) を廃止し、項目の Tag(CultureInfo 名) 駆動 +
     //   確認ダイアログ + 自動再起動方式へ (ReciPro/PDIndexer と統一)。ライブ切替は ApplyResources/コード側 Loc/フォント/
diff --git a/README.md b/README.md
@@ -50,9 +50,9 @@ Integration with *PDIndexer* is performed locally through the Windows clipboard
 
 ## Manual
 
-* Online manual (English / Japanese) : https://seto77.github.io/IPAnalyzer/
+* Online manual (11 languages) : https://seto77.github.io/IPAnalyzer/
 
-The manual offers full-text search, a light / dark theme, and English / 日本語 language tabs.
+The manual offers full-text search, a light / dark theme, and a language selector covering 11 languages: English, 日本語, Deutsch, Français, Español, Italiano, Русский, 简体中文, 繁體中文, 한국어, and Português. (The application UI itself is currently English / Japanese, so screenshots on the other-language pages are shown in English.)
 
 ***
 
diff --git a/docs/hooks/legacy_en_redirects.py b/docs/hooks/legacy_en_redirects.py
@@ -28,6 +28,8 @@
     "<!doctype html>\n"
     '<html lang="en"><head><meta charset="utf-8">\n'
     '<meta http-equiv="refresh" content="0; url={url}">\n'
+    # 260626Cl: stub 自体は検索索引に載せない (canonical 先=新ルート URL を代表にする)。Codex レビュー指摘。
+    '<meta name="robots" content="noindex">\n'
     '<link rel="canonical" href="{url}">\n'
     "<script>location.replace({url_js}+location.search+location.hash)</script>\n"
     '<title>Redirecting…</title></head><body>\n'
