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-rw-r--r--ext/mixed/js/japanese.js201
1 files changed, 201 insertions, 0 deletions
diff --git a/ext/mixed/js/japanese.js b/ext/mixed/js/japanese.js
index 23b2bd36..26349094 100644
--- a/ext/mixed/js/japanese.js
+++ b/ext/mixed/js/japanese.js
@@ -17,6 +17,65 @@
*/
+const jpHalfWidthCharacterMapping = new Map([
+ ['ヲ', 'ヲヺ-'],
+ ['ァ', 'ァ--'],
+ ['ィ', 'ィ--'],
+ ['ゥ', 'ゥ--'],
+ ['ェ', 'ェ--'],
+ ['ォ', 'ォ--'],
+ ['ャ', 'ャ--'],
+ ['ュ', 'ュ--'],
+ ['ョ', 'ョ--'],
+ ['ッ', 'ッ--'],
+ ['ー', 'ー--'],
+ ['ア', 'ア--'],
+ ['イ', 'イ--'],
+ ['ウ', 'ウヴ-'],
+ ['エ', 'エ--'],
+ ['オ', 'オ--'],
+ ['カ', 'カガ-'],
+ ['キ', 'キギ-'],
+ ['ク', 'クグ-'],
+ ['ケ', 'ケゲ-'],
+ ['コ', 'コゴ-'],
+ ['サ', 'サザ-'],
+ ['シ', 'シジ-'],
+ ['ス', 'スズ-'],
+ ['セ', 'セゼ-'],
+ ['ソ', 'ソゾ-'],
+ ['タ', 'タダ-'],
+ ['チ', 'チヂ-'],
+ ['ツ', 'ツヅ-'],
+ ['テ', 'テデ-'],
+ ['ト', 'トド-'],
+ ['ナ', 'ナ--'],
+ ['ニ', 'ニ--'],
+ ['ヌ', 'ヌ--'],
+ ['ネ', 'ネ--'],
+ ['ノ', 'ノ--'],
+ ['ハ', 'ハバパ'],
+ ['ヒ', 'ヒビピ'],
+ ['フ', 'フブプ'],
+ ['ヘ', 'ヘベペ'],
+ ['ホ', 'ホボポ'],
+ ['マ', 'マ--'],
+ ['ミ', 'ミ--'],
+ ['ム', 'ム--'],
+ ['メ', 'メ--'],
+ ['モ', 'モ--'],
+ ['ヤ', 'ヤ--'],
+ ['ユ', 'ユ--'],
+ ['ヨ', 'ヨ--'],
+ ['ラ', 'ラ--'],
+ ['リ', 'リ--'],
+ ['ル', 'ル--'],
+ ['レ', 'レ--'],
+ ['ロ', 'ロ--'],
+ ['ワ', 'ワ--'],
+ ['ン', 'ン--']
+]);
+
function jpIsKanji(c) {
const code = c.charCodeAt(0);
return code >= 0x4e00 && code < 0x9fb0 || code >= 0x3400 && code < 0x4dc0;
@@ -175,3 +234,145 @@ function jpDistributeFuriganaInflected(expression, reading, source) {
return output;
}
+
+function jpConvertHalfWidthKanaToFullWidth(text, sourceMapping) {
+ let result = '';
+ const ii = text.length;
+ const hasSourceMapping = Array.isArray(sourceMapping);
+
+ for (let i = 0; i < ii; ++i) {
+ const c = text[i];
+ const mapping = jpHalfWidthCharacterMapping.get(c);
+ if (typeof mapping !== 'string') {
+ result += c;
+ continue;
+ }
+
+ let index = 0;
+ switch (text.charCodeAt(i + 1)) {
+ case 0xff9e: // dakuten
+ index = 1;
+ break;
+ case 0xff9f: // handakuten
+ index = 2;
+ break;
+ }
+
+ let c2 = mapping[index];
+ if (index > 0) {
+ if (c2 === '-') { // invalid
+ index = 0;
+ c2 = mapping[0];
+ } else {
+ ++i;
+ }
+ }
+
+ if (hasSourceMapping && index > 0) {
+ index = result.length;
+ const v = sourceMapping.splice(index + 1, 1)[0];
+ sourceMapping[index] += v;
+ }
+ result += c2;
+ }
+
+ return result;
+}
+
+function jpConvertNumericTofullWidth(text) {
+ let result = '';
+ for (let i = 0, ii = text.length; i < ii; ++i) {
+ let c = text.charCodeAt(i);
+ if (c >= 0x30 && c <= 0x39) { // ['0', '9']
+ c += 0xff10 - 0x30; // 0xff10 = '0' full width
+ result += String.fromCharCode(c);
+ } else {
+ result += text[i];
+ }
+ }
+ return result;
+}
+
+function jpConvertAlphabeticToKana(text, sourceMapping) {
+ let part = '';
+ let result = '';
+ const ii = text.length;
+
+ if (sourceMapping.length === ii) {
+ sourceMapping.length = ii;
+ sourceMapping.fill(1);
+ }
+
+ for (let i = 0; i < ii; ++i) {
+ let c = text.charCodeAt(i);
+ if (c >= 0x41 && c <= 0x5a) { // ['A', 'Z']
+ c -= 0x41;
+ } else if (c >= 0x61 && c <= 0x7a) { // ['a', 'z']
+ c -= 0x61;
+ } else if (c >= 0xff21 && c <= 0xff3a) { // ['A', 'Z'] full width
+ c -= 0xff21;
+ } else if (c >= 0xff41 && c <= 0xff5a) { // ['a', 'z'] full width
+ c -= 0xff41;
+ } else {
+ if (part.length > 0) {
+ result += jpToHiragana(part, sourceMapping, result.length);
+ part = '';
+ }
+ result += text[i];
+ continue;
+ }
+ part += String.fromCharCode(c + 0x61); // + 'a'
+ }
+
+ if (part.length > 0) {
+ result += jpToHiragana(part, sourceMapping, result.length);
+ }
+ return result;
+}
+
+function jpToHiragana(text, sourceMapping, sourceMappingStart) {
+ const result = wanakana.toHiragana(text);
+
+ // Generate source mapping
+ if (Array.isArray(sourceMapping)) {
+ if (typeof sourceMappingStart !== 'number') { sourceMappingStart = 0; }
+ let i = 0;
+ let resultPos = 0;
+ const ii = text.length;
+ while (i < ii) {
+ // Find smallest matching substring
+ let iNext = i + 1;
+ let resultPosNext = result.length;
+ while (iNext < ii) {
+ const t = wanakana.toHiragana(text.substring(0, iNext));
+ if (t === result.substring(0, t.length)) {
+ resultPosNext = t.length;
+ break;
+ }
+ ++iNext;
+ }
+
+ // Merge characters
+ const removals = iNext - i - 1;
+ if (removals > 0) {
+ let sum = 0;
+ const vs = sourceMapping.splice(sourceMappingStart + 1, removals);
+ for (const v of vs) { sum += v; }
+ sourceMapping[sourceMappingStart] += sum;
+ }
+ ++sourceMappingStart;
+
+ // Empty elements
+ const additions = resultPosNext - resultPos - 1;
+ for (let j = 0; j < additions; ++j) {
+ sourceMapping.splice(sourceMappingStart, 0, 0);
+ ++sourceMappingStart;
+ }
+
+ i = iNext;
+ resultPos = resultPosNext;
+ }
+ }
+
+ return result;
+}