"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.encodeNonAsciiHTML = exports.encodeHTML = void 0;
var encode_html_js_1 = __importDefault(require("./generated/encode-html.js"));
var escape_js_1 = require("./escape.js");
var htmlReplacer = /[\t\n!-,./:-@[-`\f{-}$\x80-\uFFFF]/g;
/**
 * Encodes all characters in the input using HTML entities. This includes
 * characters that are valid ASCII characters in HTML documents, such as `#`.
 *
 * To get a more compact output, consider using the `encodeNonAsciiHTML`
 * function, which will only encode characters that are not valid in HTML
 * documents, as well as non-ASCII characters.
 *
 * If a character has no equivalent entity, a numeric hexadecimal reference
 * (eg. `ü`) will be used.
 */
function encodeHTML(data) {
    return encodeHTMLTrieRe(htmlReplacer, data);
}
exports.encodeHTML = encodeHTML;
/**
 * Encodes all non-ASCII characters, as well as characters not valid in HTML
 * documents using HTML entities. This function will not encode characters that
 * are valid in HTML documents, such as `#`.
 *
 * If a character has no equivalent entity, a numeric hexadecimal reference
 * (eg. `ü`) will be used.
 */
function encodeNonAsciiHTML(data) {
    return encodeHTMLTrieRe(escape_js_1.xmlReplacer, data);
}
exports.encodeNonAsciiHTML = encodeNonAsciiHTML;
function encodeHTMLTrieRe(regExp, str) {
    var ret = "";
    var lastIdx = 0;
    var match;
    while ((match = regExp.exec(str)) !== null) {
        var i = match.index;
        ret += str.substring(lastIdx, i);
        var char = str.charCodeAt(i);
        var next = encode_html_js_1.default.get(char);
        if (typeof next === "object") {
            // We are in a branch. Try to match the next char.
            if (i + 1 < str.length) {
                var nextChar = str.charCodeAt(i + 1);
                var value = typeof next.n === "number"
                    ? next.n === nextChar
                        ? next.o
                        : undefined
                    : next.n.get(nextChar);
                if (value !== undefined) {
                    ret += value;
                    lastIdx = regExp.lastIndex += 1;
                    continue;
                }
            }
            next = next.v;
        }
        // We might have a tree node without a value; skip and use a numeric entity.
        if (next !== undefined) {
            ret += next;
            lastIdx = i + 1;
        }
        else {
            var cp = (0, escape_js_1.getCodePoint)(str, i);
            ret += "&#x".concat(cp.toString(16), ";");
            // Increase by 1 if we have a surrogate pair
            lastIdx = regExp.lastIndex += Number(cp !== char);
        }
    }
    return ret + str.substr(lastIdx);
}
//# sourceMappingURL=encode.js.map