76 lines
3.0 KiB
JavaScript
76 lines
3.0 KiB
JavaScript
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.encodeHTML = encodeHTML;
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exports.encodeNonAsciiHTML = encodeNonAsciiHTML;
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const encode_html_js_1 = __importDefault(require("./generated/encode-html.js"));
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const escape_js_1 = require("./escape.js");
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const htmlReplacer = /[\t\n\f!-,./:-@[-`{-}\u0080-\uFFFF]/g;
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/**
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* Encodes all characters in the input using HTML entities. This includes
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* characters that are valid ASCII characters in HTML documents, such as `#`.
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*
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* To get a more compact output, consider using the `encodeNonAsciiHTML`
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* function, which will only encode characters that are not valid in HTML
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* documents, as well as non-ASCII characters.
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*
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* If a character has no equivalent entity, a numeric hexadecimal reference
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* (eg. `ü`) will be used.
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*/
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function encodeHTML(input) {
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return encodeHTMLTrieRe(htmlReplacer, input);
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}
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/**
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* Encodes all non-ASCII characters, as well as characters not valid in HTML
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* documents using HTML entities. This function will not encode characters that
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* are valid in HTML documents, such as `#`.
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*
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* If a character has no equivalent entity, a numeric hexadecimal reference
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* (eg. `ü`) will be used.
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*/
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function encodeNonAsciiHTML(input) {
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return encodeHTMLTrieRe(escape_js_1.xmlReplacer, input);
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}
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function encodeHTMLTrieRe(regExp, input) {
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let returnValue = "";
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let lastIndex = 0;
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let match;
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while ((match = regExp.exec(input)) !== null) {
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const { index } = match;
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returnValue += input.substring(lastIndex, index);
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const char = input.charCodeAt(index);
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let next = encode_html_js_1.default.get(char);
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if (typeof next === "object") {
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// We are in a branch. Try to match the next char.
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if (index + 1 < input.length) {
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const nextChar = input.charCodeAt(index + 1);
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const value = typeof next.n === "number"
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? next.n === nextChar
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? next.o
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: undefined
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: next.n.get(nextChar);
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if (value !== undefined) {
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returnValue += value;
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lastIndex = regExp.lastIndex += 1;
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continue;
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}
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}
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next = next.v;
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}
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// We might have a tree node without a value; skip and use a numeric entity.
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if (next === undefined) {
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const cp = (0, escape_js_1.getCodePoint)(input, index);
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returnValue += `&#x${cp.toString(16)};`;
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// Increase by 1 if we have a surrogate pair
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lastIndex = regExp.lastIndex += Number(cp !== char);
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}
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else {
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returnValue += next;
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lastIndex = index + 1;
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}
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}
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return returnValue + input.substr(lastIndex);
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}
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//# sourceMappingURL=encode.js.map
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