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/*
* 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 {CJK_IDEOGRAPH_RANGES, CJK_PUNCTUATION_RANGE, FULLWIDTH_CHARACTER_RANGES, isCodePointInRanges} from '../CJK-util.js';
/** @type {import('CJK-util').CodepointRange} */
const BOPOMOFO_RANGE = [0x3100, 0x312f];
/** @type {import('CJK-util').CodepointRange} */
const BOPOMOFO_EXTENDED_RANGE = [0x31a0, 0x31bf];
/** @type {import('CJK-util').CodepointRange} */
const IDEOGRAPHIC_SYMBOLS_AND_PUNCTUATION_RANGE = [0x16fe0, 0x16fff];
/** @type {import('CJK-util').CodepointRange} */
const SMALL_FORM_RANGE = [0xfe50, 0xfe6f];
/** @type {import('CJK-util').CodepointRange} */
const VERTICAL_FORM_RANGE = [0xfe10, 0xfe1f];
/**
* Chinese character ranges, roughly ordered in order of expected frequency.
* @type {import('CJK-util').CodepointRange[]}
*/
const CHINESE_RANGES = [
...CJK_IDEOGRAPH_RANGES,
CJK_PUNCTUATION_RANGE,
...FULLWIDTH_CHARACTER_RANGES,
BOPOMOFO_RANGE,
BOPOMOFO_EXTENDED_RANGE,
IDEOGRAPHIC_SYMBOLS_AND_PUNCTUATION_RANGE,
SMALL_FORM_RANGE,
VERTICAL_FORM_RANGE,
];
/**
* @param {string} str
* @returns {boolean}
*/
export function isStringPartiallyChinese(str) {
if (str.length === 0) { return false; }
for (const c of str) {
if (isCodePointInRanges(/** @type {number} */ (c.codePointAt(0)), CHINESE_RANGES)) {
return true;
}
}
return false;
}
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