ducha-qianduan/node_modules/html-entities/lib/surrogate-pairs.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.fromCodePoint = String.fromCodePoint || function (astralCodePoint) {
    return String.fromCharCode(Math.floor((astralCodePoint - 0x10000) / 0x400) + 0xD800, (astralCodePoint - 0x10000) % 0x400 + 0xDC00);
};
exports.getCodePoint = String.prototype.codePointAt ?
    function (input, position) {
        return input.codePointAt(position);
    } :
    function (input, position) {
        return (input.charCodeAt(position) - 0xD800) * 0x400
            + input.charCodeAt(position + 1) - 0xDC00 + 0x10000;
    };
exports.highSurrogateFrom = 0xD800;
exports.highSurrogateTo = 0xDBFF;