Language descriptors organization (#704)

* Move languageDescriptorMap

* Move text preprocessors

* Merge into language-descriptors.js

* Merge typescript

* Initialize inline

* Move types

* Update types

* Update eslint

* Update jsconfig reference

* Rename

1 files changed, 51 insertions, 0 deletions

diff --git a/ext/js/language/language-descriptors.js b/ext/js/language/language-descriptors.js
new file mode 100644
index 00000000..ee65a011
--- /dev/null
+++ b/ext/js/language/language-descriptors.js
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2024  Yomitan Authors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import {collapseEmphaticSequences, convertAlphabeticCharacters, convertHalfWidthCharacters, convertHiraganaToKatakana, convertKatakanaToHiragana, convertNumericCharacters} from './ja/japanese-text-preprocessors.js';
+import {capitalizeFirstLetter, decapitalize} from './text-preprocessors.js';
+
+/** @type {import('language-descriptors').LanguageDescriptorAny[]} */
+const languageDescriptors = [
+    {
+        iso: 'en',
+        name: 'English',
+        exampleText: 'read',
+        textPreprocessors: {
+            capitalizeFirstLetter,
+            decapitalize
+        }
+    },
+    {
+        iso: 'ja',
+        name: 'Japanese',
+        exampleText: '読め',
+        textPreprocessors: {
+            convertHalfWidthCharacters,
+            convertNumericCharacters,
+            convertAlphabeticCharacters,
+            convertHiraganaToKatakana,
+            convertKatakanaToHiragana,
+            collapseEmphaticSequences
+        }
+    }
+];
+
+/** @type {Map<string, import('language-descriptors').LanguageDescriptorAny>} */
+export const languageDescriptorMap = new Map();
+for (const languageDescriptor of languageDescriptors) {
+    languageDescriptorMap.set(languageDescriptor.iso, languageDescriptor);
+}