mout/string/escapeUnicode.js

Modular Utilities

"use strict";
exports.__esModule = true;
var toString_1 = require("../lang/toString");
/**
 * Escape string into unicode sequences
 */
function escapeUnicode(str, shouldEscapePrintable) {
    str = toString_1["default"](str);
    return str.replace(/[\s\S]/g, function (ch) {
        // skip printable ASCII chars if we should not escape them
        if (!shouldEscapePrintable && /[\x20-\x7E]/.test(ch)) {
            return ch;
        }
        // we use "000" and slice(-4) for brevity, need to pad zeros,
        // unicode escape always have 4 chars after "\u"
        return "\\u" + ("000" + ch.charCodeAt(0).toString(16)).slice(-4);
    });
}
exports["default"] = escapeUnicode;