1 files changed, 86 insertions, 0 deletions
diff --git a/ext/js/language/ja/japanese-text-preprocessors.js b/ext/js/language/ja/japanese-text-preprocessors.js
new file mode 100644
index 00000000..ab4138c3
--- /dev/null
+++ b/ext/js/language/ja/japanese-text-preprocessors.js
@@ -0,0 +1,86 @@
+/*
+ * 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 {basicTextPreprocessorOptions} from '../text-preprocessors.js';
+import {convertAlphabeticToKana} from './japanese-wanakana.js';
+import {
+    collapseEmphaticSequences as collapseEmphaticSequencesFunction,
+    convertHalfWidthKanaToFullWidth,
+    convertHiraganaToKatakana as convertHiraganaToKatakanaFunction,
+    convertKatakanaToHiragana as convertKatakanaToHiraganaFunction,
+    convertNumericToFullWidth
+} from './japanese.js';
+
+/** @type {import('language').TextPreprocessor<boolean>} */
+export const convertHalfWidthCharacters = {
+    name: 'Convert half width characters to full width',
+    description: 'ﾖﾐﾁｬﾝ → ヨミチャン',
+    options: basicTextPreprocessorOptions,
+    /** @type {import('language').TextPreprocessorFunction<boolean>} */
+    process: (str, setting, sourceMap) => (setting ? convertHalfWidthKanaToFullWidth(str, sourceMap) : str)
+};
+
+/** @type {import('language').TextPreprocessor<boolean>} */
+export const convertNumericCharacters = {
+    name: 'Convert numeric characters to full width',
+    description: '1234 → １２３４',
+    options: basicTextPreprocessorOptions,
+    /** @type {import('language').TextPreprocessorFunction<boolean>} */
+    process: (str, setting) => (setting ? convertNumericToFullWidth(str) : str)
+};
+
+/** @type {import('language').TextPreprocessor<boolean>} */
+export const convertAlphabeticCharacters = {
+    name: 'Convert alphabetic characters to hiragana',
+    description: 'yomichan → よみちゃん',
+    options: basicTextPreprocessorOptions,
+    /** @type {import('language').TextPreprocessorFunction<boolean>} */
+    process: (str, setting, sourceMap) => (setting ? convertAlphabeticToKana(str, sourceMap) : str)
+};
+
+/** @type {import('language').TextPreprocessor<boolean>} */
+export const convertHiraganaToKatakana = {
+    name: 'Convert hiragana to katakana',
+    description: 'よみちゃん → ヨミチャン',
+    options: basicTextPreprocessorOptions,
+    /** @type {import('language').TextPreprocessorFunction<boolean>} */
+    process: (str, setting) => (setting ? convertHiraganaToKatakanaFunction(str) : str)
+};
+
+/** @type {import('language').TextPreprocessor<boolean>} */
+export const convertKatakanaToHiragana = {
+    name: 'Convert katakana to hiragana',
+    description: 'ヨミチャン → よみちゃん',
+    options: basicTextPreprocessorOptions,
+    /** @type {import('language').TextPreprocessorFunction<boolean>} */
+    process: (str, setting) => (setting ? convertKatakanaToHiraganaFunction(str) : str)
+};
+
+/** @type {import('language').TextPreprocessor<[collapseEmphatic: boolean, collapseEmphaticFull: boolean]>} */
+export const collapseEmphaticSequences = {
+    name: 'Collapse emphatic character sequences',
+    description: 'すっっごーーい → すっごーい / すごい',
+    options: [[false, false], [true, false], [true, true]],
+    /** @type {import('language').TextPreprocessorFunction<[collapseEmphatic: boolean, collapseEmphaticFull: boolean]>} */
+    process: (str, setting, sourceMap) => {
+        const [collapseEmphatic, collapseEmphaticFull] = setting;
+        if (collapseEmphatic) {
+            str = collapseEmphaticSequencesFunction(str, collapseEmphaticFull, sourceMap);
+        }
+        return str;
+    }
+};