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-rw-r--r--ext/mixed/js/japanese.js37
1 files changed, 37 insertions, 0 deletions
diff --git a/ext/mixed/js/japanese.js b/ext/mixed/js/japanese.js
index e2d7a090..a7cd0452 100644
--- a/ext/mixed/js/japanese.js
+++ b/ext/mixed/js/japanese.js
@@ -48,6 +48,43 @@ function jpKatakanaToHiragana(text) {
return result;
}
+function jpHiraganaToKatakana(text) {
+ let result = '';
+ for (const c of text) {
+ if (wanakana.isHiragana(c)) {
+ result += wanakana.toKatakana(c);
+ } else {
+ result += c;
+ }
+ }
+
+ return result;
+}
+
+function jpToRomaji(text) {
+ return wanakana.toRomaji(text);
+}
+
+function jpConvertReading(expressionFragment, readingFragment, readingMode) {
+ switch (readingMode) {
+ case 'hiragana':
+ return jpKatakanaToHiragana(readingFragment || '');
+ case 'katakana':
+ return jpHiraganaToKatakana(readingFragment || '');
+ case 'romaji':
+ if (readingFragment) {
+ return jpToRomaji(readingFragment);
+ } else {
+ if (jpIsKana(expressionFragment)) {
+ return jpToRomaji(expressionFragment);
+ }
+ }
+ return readingFragment;
+ default:
+ return readingFragment;
+ }
+}
+
function jpDistributeFurigana(expression, reading) {
const fallback = [{furigana: reading, text: expression}];
if (!reading) {