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authorsyuilo <4439005+syuilo@users.noreply.github.com>2025-03-09 14:28:01 +0900
committersyuilo <4439005+syuilo@users.noreply.github.com>2025-03-09 14:28:01 +0900
commitbe7e3b9a0cb81b78a744993fef2fa2fd2833fa9c (patch)
treec82e18ce93ec0a24c57d7e36eb54a09266b3a25b /packages/frontend/src/scripts/intl-string.ts
parentenhnace(frontend): 文字列比較のためのローマナイズを強化(... (diff)
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refactor(frontend): scripts -> utility
Diffstat (limited to 'packages/frontend/src/scripts/intl-string.ts')
-rw-r--r--packages/frontend/src/scripts/intl-string.ts97
1 files changed, 0 insertions, 97 deletions
diff --git a/packages/frontend/src/scripts/intl-string.ts b/packages/frontend/src/scripts/intl-string.ts
deleted file mode 100644
index a5b5bbb592..0000000000
--- a/packages/frontend/src/scripts/intl-string.ts
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * SPDX-FileCopyrightText: syuilo and misskey-project
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-import { versatileLang } from '@@/js/intl-const.js';
-import type { toHiragana as toHiraganaType } from 'wanakana';
-
-let toHiragana: typeof toHiraganaType = (str?: string) => str ?? '';
-let isWanakanaLoaded = false;
-
-/**
- * ローマ字変換のセットアップ(日本語以外の環境で読み込まないのでlazy-loading)
- *
- * ここの比較系関数を使う際は事前に呼び出す必要がある
- */
-export async function initIntlString(forceWanakana = false) {
- if ((!versatileLang.includes('ja') && !forceWanakana) || isWanakanaLoaded) return;
- const { toHiragana: _toHiragana } = await import('wanakana');
- toHiragana = _toHiragana;
- isWanakanaLoaded = true;
-}
-
-/**
- * - 全角英数字を半角に
- * - 半角カタカナを全角に
- * - 濁点・半濁点がリガチャになっている(例: `か` + `゛` )ひらがな・カタカナを結合
- * - 異体字を正規化
- * - 小文字に揃える
- * - 文字列のトリム
- */
-export function normalizeString(str: string) {
- const segmenter = new Intl.Segmenter(versatileLang, { granularity: 'grapheme' });
- return [...segmenter.segment(str)].map(({ segment }) => segment.normalize('NFKC')).join('').toLowerCase().trim();
-}
-
-// https://qiita.com/non-caffeine/items/77360dda05c8ce510084
-const hyphens = [
- 0x002d, // hyphen-minus
- 0x02d7, // modifier letter minus sign
- 0x1173, // hangul jongseong eu
- 0x1680, // ogham space mark
- 0x1b78, // balinese musical symbol left-hand open pang
- 0x2010, // hyphen
- 0x2011, // non-breaking hyphen
- 0x2012, // figure dash
- 0x2013, // en dash
- 0x2014, // em dash
- 0x2015, // horizontal bar
- 0x2043, // hyphen bullet
- 0x207b, // superscript minus
- 0x2212, // minus sign
- 0x25ac, // black rectangle
- 0x2500, // box drawings light horizontal
- 0x2501, // box drawings heavy horizontal
- 0x2796, // heavy minus sign
- 0x30fc, // katakana-hiragana prolonged sound mark
- 0x3161, // hangul letter eu
- 0xfe58, // small em dash
- 0xfe63, // small hyphen-minus
- 0xff0d, // fullwidth hyphen-minus
- 0xff70, // halfwidth katakana-hiragana prolonged sound mark
- 0x10110, // aegean number ten
- 0x10191, // roman uncia sign
-];
-
-const hyphensCodePoints = hyphens.map(code => `\\u{${code.toString(16).padStart(4, '0')}}`);
-
-/** ハイフンを統一(ローマ字半角入力時に`ー`と`-`が判定できない問題の調整) */
-export function normalizeHyphens(str: string) {
- return str.replace(new RegExp(`[${hyphensCodePoints.join('')}]`, 'ug'), '\u002d');
-}
-
-/**
- * `normalizeString` に加えて、カタカナ・ローマ字をひらがなに揃え、ハイフンを統一
- *
- * (ローマ字じゃないものもローマ字として認識され変換されるので、文字列比較の際は `normalizeString` を併用する必要あり)
- */
-export function normalizeStringWithHiragana(str: string) {
- return normalizeHyphens(toHiragana(normalizeString(str), { convertLongVowelMark: false }));
-}
-
-/** aとbが同じかどうか */
-export function compareStringEquals(a: string, b: string) {
- return (
- normalizeString(a) === normalizeString(b) ||
- normalizeStringWithHiragana(a) === normalizeStringWithHiragana(b)
- );
-}
-
-/** baseにqueryが含まれているかどうか */
-export function compareStringIncludes(base: string, query: string) {
- return (
- normalizeString(base).includes(normalizeString(query)) ||
- normalizeStringWithHiragana(base).includes(normalizeStringWithHiragana(query))
- );
-}