@lancercomet/utils/dist/strings.js

My personal utils lib.

var CHAR_REGEX = charRegex();
/**
 * 将字符串转化为驼峰.
 *
 * @example
 * toCamelCase('lancer-comet') // lancerComet
 *
 * @param {string} text
 * @returns {string}
 */
function toCamelCase(text) {
    return text.replace(/-\w/g, clearAndUpper);
}
/**
 * 将字符串转换为帕斯卡.
 *
 * @example
 * toPascalCase('lancerc-comet')  // LancerComet
 *
 * @param {string} text
 * @returns {string}
 */
function toPascalCase(text) {
    return text.replace(/(^\w|-\w)/g, clearAndUpper);
}
/**
 * 将字符串转化为 KebabCase.
 *
 * @example
 * toKebabCase('lancerComet')  // lancer-comet
 *
 * @param {string} text
 * @returns {string}
 */
function toKebabCase(text) {
    return toPascalCase(text)
        .replace(/[A-Z]/g, function (t) { return '-' + t.toLowerCase(); })
        .replace(/^-/, '')
        .replace(/-$/, '');
}
/**
 * 获取字符串字节长度.
 * 一个汉字（双字节字符）将被当作两个字节统计.
 *
 * @param {string} str
 * @returns {number}
 */
function getStringByteLength(str) {
    return typeof str !== 'string'
        ? 0
        : str.replace(/[\u4e00-\u9fa5]/g, 'aa').length;
}
/**
 * 获取字符串字符长度.
 * 此方法将把任意一个字符统计为 1, 包括 Unicode 的颜文字.
 *
 * @param {string} str
 * @returns {number}
 */
function getStringCharCount(str) {
    var _a, _b;
    return typeof str !== 'string'
        ? 0
        : (_b = (_a = str.match(CHAR_REGEX)) === null || _a === void 0 ? void 0 : _a.length) !== null && _b !== void 0 ? _b : 0;
}
export { getStringByteLength, toCamelCase, toPascalCase, toKebabCase, getStringCharCount };
function charRegex() {
    // Used to compose unicode character classes.
    var astralRange = '\\ud800-\\udfff';
    var comboMarksRange = '\\u0300-\\u036f';
    var comboHalfMarksRange = '\\ufe20-\\ufe2f';
    var comboSymbolsRange = '\\u20d0-\\u20ff';
    var comboMarksExtendedRange = '\\u1ab0-\\u1aff';
    var comboMarksSupplementRange = '\\u1dc0-\\u1dff';
    var comboRange = comboMarksRange + comboHalfMarksRange + comboSymbolsRange +
        comboMarksExtendedRange + comboMarksSupplementRange;
    var varRange = '\\ufe0e\\ufe0f';
    var familyRange = '\\uD83D\\uDC69\\uD83C\\uDFFB\\u200D\\uD83C\\uDF93';
    // Used to compose unicode capture groups.
    var astral = "[".concat(astralRange, "]");
    var combo = "[".concat(comboRange, "]");
    var fitz = '\\ud83c[\\udffb-\\udfff]';
    var modifier = "(?:".concat(combo, "|").concat(fitz, ")");
    var nonAstral = "[^".concat(astralRange, "]");
    var regional = '(?:\\uD83C[\\uDDE6-\\uDDFF]){2}';
    var surrogatePair = '[\\ud800-\\udbff][\\udc00-\\udfff]';
    var zwj = '\\u200d';
    var blackFlag = '(?:\\ud83c\\udff4\\udb40\\udc67\\udb40\\udc62\\udb40' +
        '(?:\\udc65|\\udc73|\\udc77)\\udb40(?:\\udc6e|\\udc63|\\udc6c)\\udb40(?:\\udc67|\\udc74|\\udc73)\\udb40\\udc7f)';
    var family = "[".concat(familyRange, "]");
    // Used to compose unicode regexes.
    var optModifier = "".concat(modifier, "?");
    var optVar = "[".concat(varRange, "]?");
    var optJoin = "(?:".concat(zwj, "(?:").concat([nonAstral, regional, surrogatePair].join('|'), ")").concat(optVar + optModifier, ")*");
    var seq = optVar + optModifier + optJoin;
    var nonAstralCombo = "".concat(nonAstral).concat(combo, "?");
    var symbol = "(?:".concat([nonAstralCombo, combo, regional, surrogatePair, astral, family].join('|'), ")");
    // Used to match [String symbols](https://mathiasbynens.be/notes/javascript-unicode).
    return new RegExp("".concat(blackFlag, "|").concat(fitz, "(?=").concat(fitz, ")|").concat(symbol + seq), 'g');
}
function clearAndUpper(text) {
    return text.replace(/-/, '').toUpperCase();
}