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6901 lines
286 KiB
6901 lines
286 KiB
/*! markdown-it 13.0.2 https://github.com/markdown-it/markdown-it @license MIT */
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(function(global, factory) {
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typeof exports === "object" && typeof module !== "undefined" ? module.exports = factory() : typeof define === "function" && define.amd ? define(factory) : (global = typeof globalThis !== "undefined" ? globalThis : global || self,
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global.markdownit = factory());
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})(this, (function() {
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"use strict";
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function getDefaultExportFromCjs(x) {
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return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, "default") ? x["default"] : x;
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}
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var mdurl = {};
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var encodeCache = {};
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// Create a lookup array where anything but characters in `chars` string
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// and alphanumeric chars is percent-encoded.
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function getEncodeCache(exclude) {
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var i, ch, cache = encodeCache[exclude];
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if (cache) {
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return cache;
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}
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cache = encodeCache[exclude] = [];
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for (i = 0; i < 128; i++) {
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ch = String.fromCharCode(i);
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if (/^[0-9a-z]$/i.test(ch)) {
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// always allow unencoded alphanumeric characters
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cache.push(ch);
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} else {
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cache.push("%" + ("0" + i.toString(16).toUpperCase()).slice(-2));
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}
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}
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for (i = 0; i < exclude.length; i++) {
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cache[exclude.charCodeAt(i)] = exclude[i];
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}
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return cache;
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}
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// Encode unsafe characters with percent-encoding, skipping already
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// encoded sequences.
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// - string - string to encode
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// - exclude - list of characters to ignore (in addition to a-zA-Z0-9)
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// - keepEscaped - don't encode '%' in a correct escape sequence (default: true)
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function encode$1(string, exclude, keepEscaped) {
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var i, l, code, nextCode, cache, result = "";
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if (typeof exclude !== "string") {
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// encode(string, keepEscaped)
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keepEscaped = exclude;
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exclude = encode$1.defaultChars;
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}
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if (typeof keepEscaped === "undefined") {
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keepEscaped = true;
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}
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cache = getEncodeCache(exclude);
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for (i = 0, l = string.length; i < l; i++) {
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code = string.charCodeAt(i);
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if (keepEscaped && code === 37 /* % */ && i + 2 < l) {
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if (/^[0-9a-f]{2}$/i.test(string.slice(i + 1, i + 3))) {
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result += string.slice(i, i + 3);
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i += 2;
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continue;
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}
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}
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if (code < 128) {
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result += cache[code];
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continue;
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}
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if (code >= 55296 && code <= 57343) {
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if (code >= 55296 && code <= 56319 && i + 1 < l) {
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nextCode = string.charCodeAt(i + 1);
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if (nextCode >= 56320 && nextCode <= 57343) {
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result += encodeURIComponent(string[i] + string[i + 1]);
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i++;
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continue;
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}
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}
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result += "%EF%BF%BD";
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continue;
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}
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result += encodeURIComponent(string[i]);
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}
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return result;
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}
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encode$1.defaultChars = ";/?:@&=+$,-_.!~*'()#";
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encode$1.componentChars = "-_.!~*'()";
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var encode_1 = encode$1;
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/* eslint-disable no-bitwise */ var decodeCache = {};
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function getDecodeCache(exclude) {
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var i, ch, cache = decodeCache[exclude];
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if (cache) {
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return cache;
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}
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cache = decodeCache[exclude] = [];
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for (i = 0; i < 128; i++) {
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ch = String.fromCharCode(i);
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cache.push(ch);
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}
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for (i = 0; i < exclude.length; i++) {
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ch = exclude.charCodeAt(i);
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cache[ch] = "%" + ("0" + ch.toString(16).toUpperCase()).slice(-2);
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}
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return cache;
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}
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// Decode percent-encoded string.
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function decode$1(string, exclude) {
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var cache;
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if (typeof exclude !== "string") {
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exclude = decode$1.defaultChars;
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}
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cache = getDecodeCache(exclude);
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return string.replace(/(%[a-f0-9]{2})+/gi, (function(seq) {
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var i, l, b1, b2, b3, b4, chr, result = "";
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for (i = 0, l = seq.length; i < l; i += 3) {
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b1 = parseInt(seq.slice(i + 1, i + 3), 16);
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if (b1 < 128) {
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result += cache[b1];
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continue;
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}
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if ((b1 & 224) === 192 && i + 3 < l) {
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// 110xxxxx 10xxxxxx
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b2 = parseInt(seq.slice(i + 4, i + 6), 16);
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if ((b2 & 192) === 128) {
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chr = b1 << 6 & 1984 | b2 & 63;
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if (chr < 128) {
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result += "\ufffd\ufffd";
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} else {
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result += String.fromCharCode(chr);
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}
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i += 3;
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continue;
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}
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}
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if ((b1 & 240) === 224 && i + 6 < l) {
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// 1110xxxx 10xxxxxx 10xxxxxx
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b2 = parseInt(seq.slice(i + 4, i + 6), 16);
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b3 = parseInt(seq.slice(i + 7, i + 9), 16);
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if ((b2 & 192) === 128 && (b3 & 192) === 128) {
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chr = b1 << 12 & 61440 | b2 << 6 & 4032 | b3 & 63;
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if (chr < 2048 || chr >= 55296 && chr <= 57343) {
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result += "\ufffd\ufffd\ufffd";
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} else {
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result += String.fromCharCode(chr);
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}
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i += 6;
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continue;
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}
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}
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if ((b1 & 248) === 240 && i + 9 < l) {
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// 111110xx 10xxxxxx 10xxxxxx 10xxxxxx
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b2 = parseInt(seq.slice(i + 4, i + 6), 16);
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b3 = parseInt(seq.slice(i + 7, i + 9), 16);
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b4 = parseInt(seq.slice(i + 10, i + 12), 16);
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if ((b2 & 192) === 128 && (b3 & 192) === 128 && (b4 & 192) === 128) {
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chr = b1 << 18 & 1835008 | b2 << 12 & 258048 | b3 << 6 & 4032 | b4 & 63;
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if (chr < 65536 || chr > 1114111) {
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result += "\ufffd\ufffd\ufffd\ufffd";
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} else {
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chr -= 65536;
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result += String.fromCharCode(55296 + (chr >> 10), 56320 + (chr & 1023));
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}
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i += 9;
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continue;
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}
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}
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result += "\ufffd";
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}
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return result;
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}));
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}
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decode$1.defaultChars = ";/?:@&=+$,#";
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decode$1.componentChars = "";
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var decode_1 = decode$1;
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var format = function format(url) {
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var result = "";
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result += url.protocol || "";
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result += url.slashes ? "//" : "";
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result += url.auth ? url.auth + "@" : "";
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if (url.hostname && url.hostname.indexOf(":") !== -1) {
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// ipv6 address
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result += "[" + url.hostname + "]";
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} else {
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result += url.hostname || "";
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}
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result += url.port ? ":" + url.port : "";
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result += url.pathname || "";
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result += url.search || "";
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result += url.hash || "";
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return result;
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};
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// Changes from joyent/node:
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// 1. No leading slash in paths,
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// e.g. in `url.parse('http://foo?bar')` pathname is ``, not `/`
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// 2. Backslashes are not replaced with slashes,
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// so `http:\\example.org\` is treated like a relative path
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// 3. Trailing colon is treated like a part of the path,
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// i.e. in `http://example.org:foo` pathname is `:foo`
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// 4. Nothing is URL-encoded in the resulting object,
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// (in joyent/node some chars in auth and paths are encoded)
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// 5. `url.parse()` does not have `parseQueryString` argument
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// 6. Removed extraneous result properties: `host`, `path`, `query`, etc.,
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// which can be constructed using other parts of the url.
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function Url() {
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this.protocol = null;
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this.slashes = null;
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this.auth = null;
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this.port = null;
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this.hostname = null;
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this.hash = null;
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this.search = null;
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this.pathname = null;
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}
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// Reference: RFC 3986, RFC 1808, RFC 2396
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// define these here so at least they only have to be
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// compiled once on the first module load.
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var protocolPattern = /^([a-z0-9.+-]+:)/i, portPattern = /:[0-9]*$/,
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// Special case for a simple path URL
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simplePathPattern = /^(\/\/?(?!\/)[^\?\s]*)(\?[^\s]*)?$/,
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// RFC 2396: characters reserved for delimiting URLs.
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// We actually just auto-escape these.
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delims = [ "<", ">", '"', "`", " ", "\r", "\n", "\t" ],
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// RFC 2396: characters not allowed for various reasons.
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unwise = [ "{", "}", "|", "\\", "^", "`" ].concat(delims),
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// Allowed by RFCs, but cause of XSS attacks. Always escape these.
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autoEscape = [ "'" ].concat(unwise),
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// Characters that are never ever allowed in a hostname.
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// Note that any invalid chars are also handled, but these
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// are the ones that are *expected* to be seen, so we fast-path
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// them.
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nonHostChars = [ "%", "/", "?", ";", "#" ].concat(autoEscape), hostEndingChars = [ "/", "?", "#" ], hostnameMaxLen = 255, hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/, hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/,
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// protocols that can allow "unsafe" and "unwise" chars.
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/* eslint-disable no-script-url */
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// protocols that never have a hostname.
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hostlessProtocol = {
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javascript: true,
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"javascript:": true
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},
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// protocols that always contain a // bit.
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slashedProtocol = {
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http: true,
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https: true,
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ftp: true,
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gopher: true,
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file: true,
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"http:": true,
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"https:": true,
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"ftp:": true,
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"gopher:": true,
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"file:": true
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};
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/* eslint-enable no-script-url */ function urlParse(url, slashesDenoteHost) {
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if (url && url instanceof Url) {
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return url;
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}
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var u = new Url;
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u.parse(url, slashesDenoteHost);
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return u;
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}
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Url.prototype.parse = function(url, slashesDenoteHost) {
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var i, l, lowerProto, hec, slashes, rest = url;
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// trim before proceeding.
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// This is to support parse stuff like " http://foo.com \n"
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rest = rest.trim();
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if (!slashesDenoteHost && url.split("#").length === 1) {
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// Try fast path regexp
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var simplePath = simplePathPattern.exec(rest);
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if (simplePath) {
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this.pathname = simplePath[1];
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if (simplePath[2]) {
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this.search = simplePath[2];
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}
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return this;
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}
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}
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var proto = protocolPattern.exec(rest);
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if (proto) {
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proto = proto[0];
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lowerProto = proto.toLowerCase();
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this.protocol = proto;
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rest = rest.substr(proto.length);
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}
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// figure out if it's got a host
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// user@server is *always* interpreted as a hostname, and url
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// resolution will treat //foo/bar as host=foo,path=bar because that's
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// how the browser resolves relative URLs.
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if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
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slashes = rest.substr(0, 2) === "//";
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if (slashes && !(proto && hostlessProtocol[proto])) {
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rest = rest.substr(2);
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this.slashes = true;
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}
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}
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if (!hostlessProtocol[proto] && (slashes || proto && !slashedProtocol[proto])) {
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// there's a hostname.
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// the first instance of /, ?, ;, or # ends the host.
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// If there is an @ in the hostname, then non-host chars *are* allowed
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// to the left of the last @ sign, unless some host-ending character
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// comes *before* the @-sign.
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// URLs are obnoxious.
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// ex:
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// http://a@b@c/ => user:a@b host:c
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// http://a@b?@c => user:a host:c path:/?@c
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// v0.12 TODO(isaacs): This is not quite how Chrome does things.
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// Review our test case against browsers more comprehensively.
|
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// find the first instance of any hostEndingChars
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var hostEnd = -1;
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for (i = 0; i < hostEndingChars.length; i++) {
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hec = rest.indexOf(hostEndingChars[i]);
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if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) {
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hostEnd = hec;
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}
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}
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// at this point, either we have an explicit point where the
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// auth portion cannot go past, or the last @ char is the decider.
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var auth, atSign;
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if (hostEnd === -1) {
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// atSign can be anywhere.
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atSign = rest.lastIndexOf("@");
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} else {
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// atSign must be in auth portion.
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// http://a@b/c@d => host:b auth:a path:/c@d
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atSign = rest.lastIndexOf("@", hostEnd);
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}
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// Now we have a portion which is definitely the auth.
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// Pull that off.
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if (atSign !== -1) {
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auth = rest.slice(0, atSign);
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rest = rest.slice(atSign + 1);
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this.auth = auth;
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}
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// the host is the remaining to the left of the first non-host char
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hostEnd = -1;
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for (i = 0; i < nonHostChars.length; i++) {
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hec = rest.indexOf(nonHostChars[i]);
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if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) {
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hostEnd = hec;
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}
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}
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// if we still have not hit it, then the entire thing is a host.
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if (hostEnd === -1) {
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hostEnd = rest.length;
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}
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if (rest[hostEnd - 1] === ":") {
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hostEnd--;
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}
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var host = rest.slice(0, hostEnd);
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rest = rest.slice(hostEnd);
|
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// pull out port.
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this.parseHost(host);
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// we've indicated that there is a hostname,
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// so even if it's empty, it has to be present.
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this.hostname = this.hostname || "";
|
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// if hostname begins with [ and ends with ]
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// assume that it's an IPv6 address.
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var ipv6Hostname = this.hostname[0] === "[" && this.hostname[this.hostname.length - 1] === "]";
|
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// validate a little.
|
|
if (!ipv6Hostname) {
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var hostparts = this.hostname.split(/\./);
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for (i = 0, l = hostparts.length; i < l; i++) {
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var part = hostparts[i];
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if (!part) {
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continue;
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}
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if (!part.match(hostnamePartPattern)) {
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var newpart = "";
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for (var j = 0, k = part.length; j < k; j++) {
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if (part.charCodeAt(j) > 127) {
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// we replace non-ASCII char with a temporary placeholder
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// we need this to make sure size of hostname is not
|
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// broken by replacing non-ASCII by nothing
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newpart += "x";
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} else {
|
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newpart += part[j];
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|
}
|
|
}
|
|
// we test again with ASCII char only
|
|
if (!newpart.match(hostnamePartPattern)) {
|
|
var validParts = hostparts.slice(0, i);
|
|
var notHost = hostparts.slice(i + 1);
|
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var bit = part.match(hostnamePartStart);
|
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if (bit) {
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validParts.push(bit[1]);
|
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notHost.unshift(bit[2]);
|
|
}
|
|
if (notHost.length) {
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|
rest = notHost.join(".") + rest;
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|
}
|
|
this.hostname = validParts.join(".");
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break;
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|
}
|
|
}
|
|
}
|
|
}
|
|
if (this.hostname.length > hostnameMaxLen) {
|
|
this.hostname = "";
|
|
}
|
|
// strip [ and ] from the hostname
|
|
// the host field still retains them, though
|
|
if (ipv6Hostname) {
|
|
this.hostname = this.hostname.substr(1, this.hostname.length - 2);
|
|
}
|
|
}
|
|
// chop off from the tail first.
|
|
var hash = rest.indexOf("#");
|
|
if (hash !== -1) {
|
|
// got a fragment string.
|
|
this.hash = rest.substr(hash);
|
|
rest = rest.slice(0, hash);
|
|
}
|
|
var qm = rest.indexOf("?");
|
|
if (qm !== -1) {
|
|
this.search = rest.substr(qm);
|
|
rest = rest.slice(0, qm);
|
|
}
|
|
if (rest) {
|
|
this.pathname = rest;
|
|
}
|
|
if (slashedProtocol[lowerProto] && this.hostname && !this.pathname) {
|
|
this.pathname = "";
|
|
}
|
|
return this;
|
|
};
|
|
Url.prototype.parseHost = function(host) {
|
|
var port = portPattern.exec(host);
|
|
if (port) {
|
|
port = port[0];
|
|
if (port !== ":") {
|
|
this.port = port.substr(1);
|
|
}
|
|
host = host.substr(0, host.length - port.length);
|
|
}
|
|
if (host) {
|
|
this.hostname = host;
|
|
}
|
|
};
|
|
var parse = urlParse;
|
|
mdurl.encode = encode_1;
|
|
mdurl.decode = decode_1;
|
|
mdurl.format = format;
|
|
mdurl.parse = parse;
|
|
var uc_micro = {};
|
|
var regex$4 = /[\0-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
|
|
var regex$3 = /[\0-\x1F\x7F-\x9F]/;
|
|
var regex$2 = /[\xAD\u0600-\u0605\u061C\u06DD\u070F\u08E2\u180E\u200B-\u200F\u202A-\u202E\u2060-\u2064\u2066-\u206F\uFEFF\uFFF9-\uFFFB]|\uD804[\uDCBD\uDCCD]|\uD82F[\uDCA0-\uDCA3]|\uD834[\uDD73-\uDD7A]|\uDB40[\uDC01\uDC20-\uDC7F]/;
|
|
var regex$1 = /[!-#%-\*,-\/:;\?@\[-\]_\{\}\xA1\xA7\xAB\xB6\xB7\xBB\xBF\u037E\u0387\u055A-\u055F\u0589\u058A\u05BE\u05C0\u05C3\u05C6\u05F3\u05F4\u0609\u060A\u060C\u060D\u061B\u061E\u061F\u066A-\u066D\u06D4\u0700-\u070D\u07F7-\u07F9\u0830-\u083E\u085E\u0964\u0965\u0970\u09FD\u0A76\u0AF0\u0C84\u0DF4\u0E4F\u0E5A\u0E5B\u0F04-\u0F12\u0F14\u0F3A-\u0F3D\u0F85\u0FD0-\u0FD4\u0FD9\u0FDA\u104A-\u104F\u10FB\u1360-\u1368\u1400\u166D\u166E\u169B\u169C\u16EB-\u16ED\u1735\u1736\u17D4-\u17D6\u17D8-\u17DA\u1800-\u180A\u1944\u1945\u1A1E\u1A1F\u1AA0-\u1AA6\u1AA8-\u1AAD\u1B5A-\u1B60\u1BFC-\u1BFF\u1C3B-\u1C3F\u1C7E\u1C7F\u1CC0-\u1CC7\u1CD3\u2010-\u2027\u2030-\u2043\u2045-\u2051\u2053-\u205E\u207D\u207E\u208D\u208E\u2308-\u230B\u2329\u232A\u2768-\u2775\u27C5\u27C6\u27E6-\u27EF\u2983-\u2998\u29D8-\u29DB\u29FC\u29FD\u2CF9-\u2CFC\u2CFE\u2CFF\u2D70\u2E00-\u2E2E\u2E30-\u2E4E\u3001-\u3003\u3008-\u3011\u3014-\u301F\u3030\u303D\u30A0\u30FB\uA4FE\uA4FF\uA60D-\uA60F\uA673\uA67E\uA6F2-\uA6F7\uA874-\uA877\uA8CE\uA8CF\uA8F8-\uA8FA\uA8FC\uA92E\uA92F\uA95F\uA9C1-\uA9CD\uA9DE\uA9DF\uAA5C-\uAA5F\uAADE\uAADF\uAAF0\uAAF1\uABEB\uFD3E\uFD3F\uFE10-\uFE19\uFE30-\uFE52\uFE54-\uFE61\uFE63\uFE68\uFE6A\uFE6B\uFF01-\uFF03\uFF05-\uFF0A\uFF0C-\uFF0F\uFF1A\uFF1B\uFF1F\uFF20\uFF3B-\uFF3D\uFF3F\uFF5B\uFF5D\uFF5F-\uFF65]|\uD800[\uDD00-\uDD02\uDF9F\uDFD0]|\uD801\uDD6F|\uD802[\uDC57\uDD1F\uDD3F\uDE50-\uDE58\uDE7F\uDEF0-\uDEF6\uDF39-\uDF3F\uDF99-\uDF9C]|\uD803[\uDF55-\uDF59]|\uD804[\uDC47-\uDC4D\uDCBB\uDCBC\uDCBE-\uDCC1\uDD40-\uDD43\uDD74\uDD75\uDDC5-\uDDC8\uDDCD\uDDDB\uDDDD-\uDDDF\uDE38-\uDE3D\uDEA9]|\uD805[\uDC4B-\uDC4F\uDC5B\uDC5D\uDCC6\uDDC1-\uDDD7\uDE41-\uDE43\uDE60-\uDE6C\uDF3C-\uDF3E]|\uD806[\uDC3B\uDE3F-\uDE46\uDE9A-\uDE9C\uDE9E-\uDEA2]|\uD807[\uDC41-\uDC45\uDC70\uDC71\uDEF7\uDEF8]|\uD809[\uDC70-\uDC74]|\uD81A[\uDE6E\uDE6F\uDEF5\uDF37-\uDF3B\uDF44]|\uD81B[\uDE97-\uDE9A]|\uD82F\uDC9F|\uD836[\uDE87-\uDE8B]|\uD83A[\uDD5E\uDD5F]/;
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var UNICODE_PUNCT_RE = getDefaultExportFromCjs(regex$1);
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var regex = /[ \xA0\u1680\u2000-\u200A\u2028\u2029\u202F\u205F\u3000]/;
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uc_micro.Any = regex$4;
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uc_micro.Cc = regex$3;
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uc_micro.Cf = regex$2;
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uc_micro.P = regex$1;
|
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uc_micro.Z = regex;
|
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// Generated using scripts/write-decode-map.ts
|
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var htmlDecodeTree = new Uint16Array(
|
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// prettier-ignore
|
|
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61c8\u0180cit\u38b0\u38c4\u38c8\u026f\u38b6\0\0\u38c1rn\u0100;e\u38bc\u38bd\u631dr\xbb\u38bdop;\u630eng;\u416fri;\u65f9cr;\uc000\ud835\udcca\u0180dir\u38d9\u38dd\u38e2ot;\u62f0lde;\u4169i\u0100;f\u3730\u38e8\xbb\u1813\u0100am\u38ef\u38f2r\xf2\u38a8l\u803b\xfc\u40fcangle;\u69a7\u0780ABDacdeflnoprsz\u391c\u391f\u3929\u392d\u39b5\u39b8\u39bd\u39df\u39e4\u39e8\u39f3\u39f9\u39fd\u3a01\u3a20r\xf2\u03f7ar\u0100;v\u3926\u3927\u6ae8;\u6ae9as\xe8\u03e1\u0100nr\u3932\u3937grt;\u699c\u0380eknprst\u34e3\u3946\u394b\u3952\u395d\u3964\u3996app\xe1\u2415othin\xe7\u1e96\u0180hir\u34eb\u2ec8\u3959op\xf4\u2fb5\u0100;h\u13b7\u3962\xef\u318d\u0100iu\u3969\u396dgm\xe1\u33b3\u0100bp\u3972\u3984setneq\u0100;q\u397d\u3980\uc000\u228a\ufe00;\uc000\u2acb\ufe00setneq\u0100;q\u398f\u3992\uc000\u228b\ufe00;\uc000\u2acc\ufe00\u0100hr\u399b\u399fet\xe1\u369ciangle\u0100lr\u39aa\u39afeft\xbb\u0925ight\xbb\u1051y;\u4432ash\xbb\u1036\u0180elr\u39c4\u39d2\u39d7\u0180;be\u2dea\u39cb\u39cfar;\u62bbq;\u625alip;\u62ee\u0100bt\u39dc\u1468a\xf2\u1469r;\uc000\ud835\udd33tr\xe9\u39aesu\u0100bp\u39ef\u39f1\xbb\u0d1c\xbb\u0d59pf;\uc000\ud835\udd67ro\xf0\u0efbtr\xe9\u39b4\u0100cu\u3a06\u3a0br;\uc000\ud835\udccb\u0100bp\u3a10\u3a18n\u0100Ee\u3980\u3a16\xbb\u397en\u0100Ee\u3992\u3a1e\xbb\u3990igzag;\u699a\u0380cefoprs\u3a36\u3a3b\u3a56\u3a5b\u3a54\u3a61\u3a6airc;\u4175\u0100di\u3a40\u3a51\u0100bg\u3a45\u3a49ar;\u6a5fe\u0100;q\u15fa\u3a4f;\u6259erp;\u6118r;\uc000\ud835\udd34pf;\uc000\ud835\udd68\u0100;e\u1479\u3a66at\xe8\u1479cr;\uc000\ud835\udccc\u0ae3\u178e\u3a87\0\u3a8b\0\u3a90\u3a9b\0\0\u3a9d\u3aa8\u3aab\u3aaf\0\0\u3ac3\u3ace\0\u3ad8\u17dc\u17dftr\xe9\u17d1r;\uc000\ud835\udd35\u0100Aa\u3a94\u3a97r\xf2\u03c3r\xf2\u09f6;\u43be\u0100Aa\u3aa1\u3aa4r\xf2\u03b8r\xf2\u09eba\xf0\u2713is;\u62fb\u0180dpt\u17a4\u3ab5\u3abe\u0100fl\u3aba\u17a9;\uc000\ud835\udd69im\xe5\u17b2\u0100Aa\u3ac7\u3acar\xf2\u03cer\xf2\u0a01\u0100cq\u3ad2\u17b8r;\uc000\ud835\udccd\u0100pt\u17d6\u3adcr\xe9\u17d4\u0400acefiosu\u3af0\u3afd\u3b08\u3b0c\u3b11\u3b15\u3b1b\u3b21c\u0100uy\u3af6\u3afbte\u803b\xfd\u40fd;\u444f\u0100iy\u3b02\u3b06rc;\u4177;\u444bn\u803b\xa5\u40a5r;\uc000\ud835\udd36cy;\u4457pf;\uc000\ud835\udd6acr;\uc000\ud835\udcce\u0100cm\u3b26\u3b29y;\u444el\u803b\xff\u40ff\u0500acdefhiosw\u3b42\u3b48\u3b54\u3b58\u3b64\u3b69\u3b6d\u3b74\u3b7a\u3b80cute;\u417a\u0100ay\u3b4d\u3b52ron;\u417e;\u4437ot;\u417c\u0100et\u3b5d\u3b61tr\xe6\u155fa;\u43b6r;\uc000\ud835\udd37cy;\u4436grarr;\u61ddpf;\uc000\ud835\udd6bcr;\uc000\ud835\udccf\u0100jn\u3b85\u3b87;\u600dj;\u600c'.split("").map((c => c.charCodeAt(0))));
|
|
// Generated using scripts/write-decode-map.ts
|
|
var xmlDecodeTree = new Uint16Array(
|
|
// prettier-ignore
|
|
"\u0200aglq\t\x15\x18\x1b\u026d\x0f\0\0\x12p;\u4026os;\u4027t;\u403et;\u403cuot;\u4022".split("").map((c => c.charCodeAt(0))));
|
|
// Adapted from https://github.com/mathiasbynens/he/blob/36afe179392226cf1b6ccdb16ebbb7a5a844d93a/src/he.js#L106-L134
|
|
var _a;
|
|
const decodeMap = new Map([ [ 0, 65533 ],
|
|
// C1 Unicode control character reference replacements
|
|
[ 128, 8364 ], [ 130, 8218 ], [ 131, 402 ], [ 132, 8222 ], [ 133, 8230 ], [ 134, 8224 ], [ 135, 8225 ], [ 136, 710 ], [ 137, 8240 ], [ 138, 352 ], [ 139, 8249 ], [ 140, 338 ], [ 142, 381 ], [ 145, 8216 ], [ 146, 8217 ], [ 147, 8220 ], [ 148, 8221 ], [ 149, 8226 ], [ 150, 8211 ], [ 151, 8212 ], [ 152, 732 ], [ 153, 8482 ], [ 154, 353 ], [ 155, 8250 ], [ 156, 339 ], [ 158, 382 ], [ 159, 376 ] ]);
|
|
/**
|
|
* Polyfill for `String.fromCodePoint`. It is used to create a string from a Unicode code point.
|
|
*/ const fromCodePoint$1 =
|
|
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition, node/no-unsupported-features/es-builtins
|
|
(_a = String.fromCodePoint) !== null && _a !== void 0 ? _a : function(codePoint) {
|
|
let output = "";
|
|
if (codePoint > 65535) {
|
|
codePoint -= 65536;
|
|
output += String.fromCharCode(codePoint >>> 10 & 1023 | 55296);
|
|
codePoint = 56320 | codePoint & 1023;
|
|
}
|
|
output += String.fromCharCode(codePoint);
|
|
return output;
|
|
};
|
|
/**
|
|
* Replace the given code point with a replacement character if it is a
|
|
* surrogate or is outside the valid range. Otherwise return the code
|
|
* point unchanged.
|
|
*/ function replaceCodePoint(codePoint) {
|
|
var _a;
|
|
if (codePoint >= 55296 && codePoint <= 57343 || codePoint > 1114111) {
|
|
return 65533;
|
|
}
|
|
return (_a = decodeMap.get(codePoint)) !== null && _a !== void 0 ? _a : codePoint;
|
|
}
|
|
var CharCodes;
|
|
(function(CharCodes) {
|
|
CharCodes[CharCodes["NUM"] = 35] = "NUM";
|
|
CharCodes[CharCodes["SEMI"] = 59] = "SEMI";
|
|
CharCodes[CharCodes["EQUALS"] = 61] = "EQUALS";
|
|
CharCodes[CharCodes["ZERO"] = 48] = "ZERO";
|
|
CharCodes[CharCodes["NINE"] = 57] = "NINE";
|
|
CharCodes[CharCodes["LOWER_A"] = 97] = "LOWER_A";
|
|
CharCodes[CharCodes["LOWER_F"] = 102] = "LOWER_F";
|
|
CharCodes[CharCodes["LOWER_X"] = 120] = "LOWER_X";
|
|
CharCodes[CharCodes["LOWER_Z"] = 122] = "LOWER_Z";
|
|
CharCodes[CharCodes["UPPER_A"] = 65] = "UPPER_A";
|
|
CharCodes[CharCodes["UPPER_F"] = 70] = "UPPER_F";
|
|
CharCodes[CharCodes["UPPER_Z"] = 90] = "UPPER_Z";
|
|
})(CharCodes || (CharCodes = {}));
|
|
/** Bit that needs to be set to convert an upper case ASCII character to lower case */ const TO_LOWER_BIT = 32;
|
|
var BinTrieFlags;
|
|
(function(BinTrieFlags) {
|
|
BinTrieFlags[BinTrieFlags["VALUE_LENGTH"] = 49152] = "VALUE_LENGTH";
|
|
BinTrieFlags[BinTrieFlags["BRANCH_LENGTH"] = 16256] = "BRANCH_LENGTH";
|
|
BinTrieFlags[BinTrieFlags["JUMP_TABLE"] = 127] = "JUMP_TABLE";
|
|
})(BinTrieFlags || (BinTrieFlags = {}));
|
|
function isNumber(code) {
|
|
return code >= CharCodes.ZERO && code <= CharCodes.NINE;
|
|
}
|
|
function isHexadecimalCharacter(code) {
|
|
return code >= CharCodes.UPPER_A && code <= CharCodes.UPPER_F || code >= CharCodes.LOWER_A && code <= CharCodes.LOWER_F;
|
|
}
|
|
function isAsciiAlphaNumeric(code) {
|
|
return code >= CharCodes.UPPER_A && code <= CharCodes.UPPER_Z || code >= CharCodes.LOWER_A && code <= CharCodes.LOWER_Z || isNumber(code);
|
|
}
|
|
/**
|
|
* Checks if the given character is a valid end character for an entity in an attribute.
|
|
*
|
|
* Attribute values that aren't terminated properly aren't parsed, and shouldn't lead to a parser error.
|
|
* See the example in https://html.spec.whatwg.org/multipage/parsing.html#named-character-reference-state
|
|
*/ function isEntityInAttributeInvalidEnd(code) {
|
|
return code === CharCodes.EQUALS || isAsciiAlphaNumeric(code);
|
|
}
|
|
var EntityDecoderState;
|
|
(function(EntityDecoderState) {
|
|
EntityDecoderState[EntityDecoderState["EntityStart"] = 0] = "EntityStart";
|
|
EntityDecoderState[EntityDecoderState["NumericStart"] = 1] = "NumericStart";
|
|
EntityDecoderState[EntityDecoderState["NumericDecimal"] = 2] = "NumericDecimal";
|
|
EntityDecoderState[EntityDecoderState["NumericHex"] = 3] = "NumericHex";
|
|
EntityDecoderState[EntityDecoderState["NamedEntity"] = 4] = "NamedEntity";
|
|
})(EntityDecoderState || (EntityDecoderState = {}));
|
|
var DecodingMode;
|
|
(function(DecodingMode) {
|
|
/** Entities in text nodes that can end with any character. */
|
|
DecodingMode[DecodingMode["Legacy"] = 0] = "Legacy";
|
|
/** Only allow entities terminated with a semicolon. */ DecodingMode[DecodingMode["Strict"] = 1] = "Strict";
|
|
/** Entities in attributes have limitations on ending characters. */ DecodingMode[DecodingMode["Attribute"] = 2] = "Attribute";
|
|
})(DecodingMode || (DecodingMode = {}));
|
|
/**
|
|
* Token decoder with support of writing partial entities.
|
|
*/ class EntityDecoder {
|
|
constructor(/** The tree used to decode entities. */
|
|
decodeTree,
|
|
/**
|
|
* The function that is called when a codepoint is decoded.
|
|
*
|
|
* For multi-byte named entities, this will be called multiple times,
|
|
* with the second codepoint, and the same `consumed` value.
|
|
*
|
|
* @param codepoint The decoded codepoint.
|
|
* @param consumed The number of bytes consumed by the decoder.
|
|
*/
|
|
emitCodePoint, /** An object that is used to produce errors. */
|
|
errors) {
|
|
this.decodeTree = decodeTree;
|
|
this.emitCodePoint = emitCodePoint;
|
|
this.errors = errors;
|
|
/** The current state of the decoder. */ this.state = EntityDecoderState.EntityStart;
|
|
/** Characters that were consumed while parsing an entity. */ this.consumed = 1;
|
|
/**
|
|
* The result of the entity.
|
|
*
|
|
* Either the result index of a numeric entity, or the codepoint of a
|
|
* numeric entity.
|
|
*/ this.result = 0;
|
|
/** The current index in the decode tree. */ this.treeIndex = 0;
|
|
/** The number of characters that were consumed in excess. */ this.excess = 1;
|
|
/** The mode in which the decoder is operating. */ this.decodeMode = DecodingMode.Strict;
|
|
}
|
|
/** Resets the instance to make it reusable. */ startEntity(decodeMode) {
|
|
this.decodeMode = decodeMode;
|
|
this.state = EntityDecoderState.EntityStart;
|
|
this.result = 0;
|
|
this.treeIndex = 0;
|
|
this.excess = 1;
|
|
this.consumed = 1;
|
|
}
|
|
/**
|
|
* Write an entity to the decoder. This can be called multiple times with partial entities.
|
|
* If the entity is incomplete, the decoder will return -1.
|
|
*
|
|
* Mirrors the implementation of `getDecoder`, but with the ability to stop decoding if the
|
|
* entity is incomplete, and resume when the next string is written.
|
|
*
|
|
* @param string The string containing the entity (or a continuation of the entity).
|
|
* @param offset The offset at which the entity begins. Should be 0 if this is not the first call.
|
|
* @returns The number of characters that were consumed, or -1 if the entity is incomplete.
|
|
*/ write(str, offset) {
|
|
switch (this.state) {
|
|
case EntityDecoderState.EntityStart:
|
|
{
|
|
if (str.charCodeAt(offset) === CharCodes.NUM) {
|
|
this.state = EntityDecoderState.NumericStart;
|
|
this.consumed += 1;
|
|
return this.stateNumericStart(str, offset + 1);
|
|
}
|
|
this.state = EntityDecoderState.NamedEntity;
|
|
return this.stateNamedEntity(str, offset);
|
|
}
|
|
|
|
case EntityDecoderState.NumericStart:
|
|
{
|
|
return this.stateNumericStart(str, offset);
|
|
}
|
|
|
|
case EntityDecoderState.NumericDecimal:
|
|
{
|
|
return this.stateNumericDecimal(str, offset);
|
|
}
|
|
|
|
case EntityDecoderState.NumericHex:
|
|
{
|
|
return this.stateNumericHex(str, offset);
|
|
}
|
|
|
|
case EntityDecoderState.NamedEntity:
|
|
{
|
|
return this.stateNamedEntity(str, offset);
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Switches between the numeric decimal and hexadecimal states.
|
|
*
|
|
* Equivalent to the `Numeric character reference state` in the HTML spec.
|
|
*
|
|
* @param str The string containing the entity (or a continuation of the entity).
|
|
* @param offset The current offset.
|
|
* @returns The number of characters that were consumed, or -1 if the entity is incomplete.
|
|
*/ stateNumericStart(str, offset) {
|
|
if (offset >= str.length) {
|
|
return -1;
|
|
}
|
|
if ((str.charCodeAt(offset) | TO_LOWER_BIT) === CharCodes.LOWER_X) {
|
|
this.state = EntityDecoderState.NumericHex;
|
|
this.consumed += 1;
|
|
return this.stateNumericHex(str, offset + 1);
|
|
}
|
|
this.state = EntityDecoderState.NumericDecimal;
|
|
return this.stateNumericDecimal(str, offset);
|
|
}
|
|
addToNumericResult(str, start, end, base) {
|
|
if (start !== end) {
|
|
const digitCount = end - start;
|
|
this.result = this.result * Math.pow(base, digitCount) + parseInt(str.substr(start, digitCount), base);
|
|
this.consumed += digitCount;
|
|
}
|
|
}
|
|
/**
|
|
* Parses a hexadecimal numeric entity.
|
|
*
|
|
* Equivalent to the `Hexademical character reference state` in the HTML spec.
|
|
*
|
|
* @param str The string containing the entity (or a continuation of the entity).
|
|
* @param offset The current offset.
|
|
* @returns The number of characters that were consumed, or -1 if the entity is incomplete.
|
|
*/ stateNumericHex(str, offset) {
|
|
const startIdx = offset;
|
|
while (offset < str.length) {
|
|
const char = str.charCodeAt(offset);
|
|
if (isNumber(char) || isHexadecimalCharacter(char)) {
|
|
offset += 1;
|
|
} else {
|
|
this.addToNumericResult(str, startIdx, offset, 16);
|
|
return this.emitNumericEntity(char, 3);
|
|
}
|
|
}
|
|
this.addToNumericResult(str, startIdx, offset, 16);
|
|
return -1;
|
|
}
|
|
/**
|
|
* Parses a decimal numeric entity.
|
|
*
|
|
* Equivalent to the `Decimal character reference state` in the HTML spec.
|
|
*
|
|
* @param str The string containing the entity (or a continuation of the entity).
|
|
* @param offset The current offset.
|
|
* @returns The number of characters that were consumed, or -1 if the entity is incomplete.
|
|
*/ stateNumericDecimal(str, offset) {
|
|
const startIdx = offset;
|
|
while (offset < str.length) {
|
|
const char = str.charCodeAt(offset);
|
|
if (isNumber(char)) {
|
|
offset += 1;
|
|
} else {
|
|
this.addToNumericResult(str, startIdx, offset, 10);
|
|
return this.emitNumericEntity(char, 2);
|
|
}
|
|
}
|
|
this.addToNumericResult(str, startIdx, offset, 10);
|
|
return -1;
|
|
}
|
|
/**
|
|
* Validate and emit a numeric entity.
|
|
*
|
|
* Implements the logic from the `Hexademical character reference start
|
|
* state` and `Numeric character reference end state` in the HTML spec.
|
|
*
|
|
* @param lastCp The last code point of the entity. Used to see if the
|
|
* entity was terminated with a semicolon.
|
|
* @param expectedLength The minimum number of characters that should be
|
|
* consumed. Used to validate that at least one digit
|
|
* was consumed.
|
|
* @returns The number of characters that were consumed.
|
|
*/ emitNumericEntity(lastCp, expectedLength) {
|
|
var _a;
|
|
// Ensure we consumed at least one digit.
|
|
if (this.consumed <= expectedLength) {
|
|
(_a = this.errors) === null || _a === void 0 ? void 0 : _a.absenceOfDigitsInNumericCharacterReference(this.consumed);
|
|
return 0;
|
|
}
|
|
// Figure out if this is a legit end of the entity
|
|
if (lastCp === CharCodes.SEMI) {
|
|
this.consumed += 1;
|
|
} else if (this.decodeMode === DecodingMode.Strict) {
|
|
return 0;
|
|
}
|
|
this.emitCodePoint(replaceCodePoint(this.result), this.consumed);
|
|
if (this.errors) {
|
|
if (lastCp !== CharCodes.SEMI) {
|
|
this.errors.missingSemicolonAfterCharacterReference();
|
|
}
|
|
this.errors.validateNumericCharacterReference(this.result);
|
|
}
|
|
return this.consumed;
|
|
}
|
|
/**
|
|
* Parses a named entity.
|
|
*
|
|
* Equivalent to the `Named character reference state` in the HTML spec.
|
|
*
|
|
* @param str The string containing the entity (or a continuation of the entity).
|
|
* @param offset The current offset.
|
|
* @returns The number of characters that were consumed, or -1 if the entity is incomplete.
|
|
*/ stateNamedEntity(str, offset) {
|
|
const {decodeTree: decodeTree} = this;
|
|
let current = decodeTree[this.treeIndex];
|
|
// The mask is the number of bytes of the value, including the current byte.
|
|
let valueLength = (current & BinTrieFlags.VALUE_LENGTH) >> 14;
|
|
for (;offset < str.length; offset++, this.excess++) {
|
|
const char = str.charCodeAt(offset);
|
|
this.treeIndex = determineBranch(decodeTree, current, this.treeIndex + Math.max(1, valueLength), char);
|
|
if (this.treeIndex < 0) {
|
|
return this.result === 0 ||
|
|
// If we are parsing an attribute
|
|
this.decodeMode === DecodingMode.Attribute && (
|
|
// We shouldn't have consumed any characters after the entity,
|
|
valueLength === 0 ||
|
|
// And there should be no invalid characters.
|
|
isEntityInAttributeInvalidEnd(char)) ? 0 : this.emitNotTerminatedNamedEntity();
|
|
}
|
|
current = decodeTree[this.treeIndex];
|
|
valueLength = (current & BinTrieFlags.VALUE_LENGTH) >> 14;
|
|
// If the branch is a value, store it and continue
|
|
if (valueLength !== 0) {
|
|
// If the entity is terminated by a semicolon, we are done.
|
|
if (char === CharCodes.SEMI) {
|
|
return this.emitNamedEntityData(this.treeIndex, valueLength, this.consumed + this.excess);
|
|
}
|
|
// If we encounter a non-terminated (legacy) entity while parsing strictly, then ignore it.
|
|
if (this.decodeMode !== DecodingMode.Strict) {
|
|
this.result = this.treeIndex;
|
|
this.consumed += this.excess;
|
|
this.excess = 0;
|
|
}
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
/**
|
|
* Emit a named entity that was not terminated with a semicolon.
|
|
*
|
|
* @returns The number of characters consumed.
|
|
*/ emitNotTerminatedNamedEntity() {
|
|
var _a;
|
|
const {result: result, decodeTree: decodeTree} = this;
|
|
const valueLength = (decodeTree[result] & BinTrieFlags.VALUE_LENGTH) >> 14;
|
|
this.emitNamedEntityData(result, valueLength, this.consumed);
|
|
(_a = this.errors) === null || _a === void 0 ? void 0 : _a.missingSemicolonAfterCharacterReference();
|
|
return this.consumed;
|
|
}
|
|
/**
|
|
* Emit a named entity.
|
|
*
|
|
* @param result The index of the entity in the decode tree.
|
|
* @param valueLength The number of bytes in the entity.
|
|
* @param consumed The number of characters consumed.
|
|
*
|
|
* @returns The number of characters consumed.
|
|
*/ emitNamedEntityData(result, valueLength, consumed) {
|
|
const {decodeTree: decodeTree} = this;
|
|
this.emitCodePoint(valueLength === 1 ? decodeTree[result] & ~BinTrieFlags.VALUE_LENGTH : decodeTree[result + 1], consumed);
|
|
if (valueLength === 3) {
|
|
// For multi-byte values, we need to emit the second byte.
|
|
this.emitCodePoint(decodeTree[result + 2], consumed);
|
|
}
|
|
return consumed;
|
|
}
|
|
/**
|
|
* Signal to the parser that the end of the input was reached.
|
|
*
|
|
* Remaining data will be emitted and relevant errors will be produced.
|
|
*
|
|
* @returns The number of characters consumed.
|
|
*/ end() {
|
|
var _a;
|
|
switch (this.state) {
|
|
case EntityDecoderState.NamedEntity:
|
|
{
|
|
// Emit a named entity if we have one.
|
|
return this.result !== 0 && (this.decodeMode !== DecodingMode.Attribute || this.result === this.treeIndex) ? this.emitNotTerminatedNamedEntity() : 0;
|
|
}
|
|
|
|
// Otherwise, emit a numeric entity if we have one.
|
|
case EntityDecoderState.NumericDecimal:
|
|
{
|
|
return this.emitNumericEntity(0, 2);
|
|
}
|
|
|
|
case EntityDecoderState.NumericHex:
|
|
{
|
|
return this.emitNumericEntity(0, 3);
|
|
}
|
|
|
|
case EntityDecoderState.NumericStart:
|
|
{
|
|
(_a = this.errors) === null || _a === void 0 ? void 0 : _a.absenceOfDigitsInNumericCharacterReference(this.consumed);
|
|
return 0;
|
|
}
|
|
|
|
case EntityDecoderState.EntityStart:
|
|
{
|
|
// Return 0 if we have no entity.
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Creates a function that decodes entities in a string.
|
|
*
|
|
* @param decodeTree The decode tree.
|
|
* @returns A function that decodes entities in a string.
|
|
*/ function getDecoder(decodeTree) {
|
|
let ret = "";
|
|
const decoder = new EntityDecoder(decodeTree, (str => ret += fromCodePoint$1(str)));
|
|
return function decodeWithTrie(str, decodeMode) {
|
|
let lastIndex = 0;
|
|
let offset = 0;
|
|
while ((offset = str.indexOf("&", offset)) >= 0) {
|
|
ret += str.slice(lastIndex, offset);
|
|
decoder.startEntity(decodeMode);
|
|
const len = decoder.write(str,
|
|
// Skip the "&"
|
|
offset + 1);
|
|
if (len < 0) {
|
|
lastIndex = offset + decoder.end();
|
|
break;
|
|
}
|
|
lastIndex = offset + len;
|
|
// If `len` is 0, skip the current `&` and continue.
|
|
offset = len === 0 ? lastIndex + 1 : lastIndex;
|
|
}
|
|
const result = ret + str.slice(lastIndex);
|
|
// Make sure we don't keep a reference to the final string.
|
|
ret = "";
|
|
return result;
|
|
};
|
|
}
|
|
/**
|
|
* Determines the branch of the current node that is taken given the current
|
|
* character. This function is used to traverse the trie.
|
|
*
|
|
* @param decodeTree The trie.
|
|
* @param current The current node.
|
|
* @param nodeIdx The index right after the current node and its value.
|
|
* @param char The current character.
|
|
* @returns The index of the next node, or -1 if no branch is taken.
|
|
*/ function determineBranch(decodeTree, current, nodeIdx, char) {
|
|
const branchCount = (current & BinTrieFlags.BRANCH_LENGTH) >> 7;
|
|
const jumpOffset = current & BinTrieFlags.JUMP_TABLE;
|
|
// Case 1: Single branch encoded in jump offset
|
|
if (branchCount === 0) {
|
|
return jumpOffset !== 0 && char === jumpOffset ? nodeIdx : -1;
|
|
}
|
|
// Case 2: Multiple branches encoded in jump table
|
|
if (jumpOffset) {
|
|
const value = char - jumpOffset;
|
|
return value < 0 || value >= branchCount ? -1 : decodeTree[nodeIdx + value] - 1;
|
|
}
|
|
// Case 3: Multiple branches encoded in dictionary
|
|
// Binary search for the character.
|
|
let lo = nodeIdx;
|
|
let hi = lo + branchCount - 1;
|
|
while (lo <= hi) {
|
|
const mid = lo + hi >>> 1;
|
|
const midVal = decodeTree[mid];
|
|
if (midVal < char) {
|
|
lo = mid + 1;
|
|
} else if (midVal > char) {
|
|
hi = mid - 1;
|
|
} else {
|
|
return decodeTree[mid + branchCount];
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
const htmlDecoder = getDecoder(htmlDecodeTree);
|
|
getDecoder(xmlDecodeTree);
|
|
/**
|
|
* Decodes an HTML string.
|
|
*
|
|
* @param str The string to decode.
|
|
* @param mode The decoding mode.
|
|
* @returns The decoded string.
|
|
*/ function decodeHTML(str, mode = DecodingMode.Legacy) {
|
|
return htmlDecoder(str, mode);
|
|
}
|
|
// Utilities
|
|
|
|
function _class$1(obj) {
|
|
return Object.prototype.toString.call(obj);
|
|
}
|
|
function isString$1(obj) {
|
|
return _class$1(obj) === "[object String]";
|
|
}
|
|
const _hasOwnProperty = Object.prototype.hasOwnProperty;
|
|
function has(object, key) {
|
|
return _hasOwnProperty.call(object, key);
|
|
}
|
|
// Merge objects
|
|
|
|
function assign$1(obj /* from1, from2, from3, ... */) {
|
|
const sources = Array.prototype.slice.call(arguments, 1);
|
|
sources.forEach((function(source) {
|
|
if (!source) {
|
|
return;
|
|
}
|
|
if (typeof source !== "object") {
|
|
throw new TypeError(source + "must be object");
|
|
}
|
|
Object.keys(source).forEach((function(key) {
|
|
obj[key] = source[key];
|
|
}));
|
|
}));
|
|
return obj;
|
|
}
|
|
// Remove element from array and put another array at those position.
|
|
// Useful for some operations with tokens
|
|
function arrayReplaceAt(src, pos, newElements) {
|
|
return [].concat(src.slice(0, pos), newElements, src.slice(pos + 1));
|
|
}
|
|
function isValidEntityCode(c) {
|
|
/* eslint no-bitwise:0 */
|
|
// broken sequence
|
|
if (c >= 55296 && c <= 57343) {
|
|
return false;
|
|
}
|
|
// never used
|
|
if (c >= 64976 && c <= 65007) {
|
|
return false;
|
|
}
|
|
if ((c & 65535) === 65535 || (c & 65535) === 65534) {
|
|
return false;
|
|
}
|
|
// control codes
|
|
if (c >= 0 && c <= 8) {
|
|
return false;
|
|
}
|
|
if (c === 11) {
|
|
return false;
|
|
}
|
|
if (c >= 14 && c <= 31) {
|
|
return false;
|
|
}
|
|
if (c >= 127 && c <= 159) {
|
|
return false;
|
|
}
|
|
// out of range
|
|
if (c > 1114111) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
function fromCodePoint(c) {
|
|
/* eslint no-bitwise:0 */
|
|
if (c > 65535) {
|
|
c -= 65536;
|
|
const surrogate1 = 55296 + (c >> 10);
|
|
const surrogate2 = 56320 + (c & 1023);
|
|
return String.fromCharCode(surrogate1, surrogate2);
|
|
}
|
|
return String.fromCharCode(c);
|
|
}
|
|
const UNESCAPE_MD_RE = /\\([!"#$%&'()*+,\-./:;<=>?@[\\\]^_`{|}~])/g;
|
|
const ENTITY_RE = /&([a-z#][a-z0-9]{1,31});/gi;
|
|
const UNESCAPE_ALL_RE = new RegExp(UNESCAPE_MD_RE.source + "|" + ENTITY_RE.source, "gi");
|
|
const DIGITAL_ENTITY_TEST_RE = /^#((?:x[a-f0-9]{1,8}|[0-9]{1,8}))$/i;
|
|
function replaceEntityPattern(match, name) {
|
|
if (name.charCodeAt(0) === 35 /* # */ && DIGITAL_ENTITY_TEST_RE.test(name)) {
|
|
const code = name[1].toLowerCase() === "x" ? parseInt(name.slice(2), 16) : parseInt(name.slice(1), 10);
|
|
if (isValidEntityCode(code)) {
|
|
return fromCodePoint(code);
|
|
}
|
|
return match;
|
|
}
|
|
const decoded = decodeHTML(match);
|
|
if (decoded !== match) {
|
|
return decoded;
|
|
}
|
|
return match;
|
|
}
|
|
/* function replaceEntities(str) {
|
|
if (str.indexOf('&') < 0) { return str; }
|
|
|
|
return str.replace(ENTITY_RE, replaceEntityPattern);
|
|
} */ function unescapeMd(str) {
|
|
if (str.indexOf("\\") < 0) {
|
|
return str;
|
|
}
|
|
return str.replace(UNESCAPE_MD_RE, "$1");
|
|
}
|
|
function unescapeAll(str) {
|
|
if (str.indexOf("\\") < 0 && str.indexOf("&") < 0) {
|
|
return str;
|
|
}
|
|
return str.replace(UNESCAPE_ALL_RE, (function(match, escaped, entity) {
|
|
if (escaped) {
|
|
return escaped;
|
|
}
|
|
return replaceEntityPattern(match, entity);
|
|
}));
|
|
}
|
|
const HTML_ESCAPE_TEST_RE = /[&<>"]/;
|
|
const HTML_ESCAPE_REPLACE_RE = /[&<>"]/g;
|
|
const HTML_REPLACEMENTS = {
|
|
"&": "&",
|
|
"<": "<",
|
|
">": ">",
|
|
'"': """
|
|
};
|
|
function replaceUnsafeChar(ch) {
|
|
return HTML_REPLACEMENTS[ch];
|
|
}
|
|
function escapeHtml(str) {
|
|
if (HTML_ESCAPE_TEST_RE.test(str)) {
|
|
return str.replace(HTML_ESCAPE_REPLACE_RE, replaceUnsafeChar);
|
|
}
|
|
return str;
|
|
}
|
|
const REGEXP_ESCAPE_RE = /[.?*+^$[\]\\(){}|-]/g;
|
|
function escapeRE$1(str) {
|
|
return str.replace(REGEXP_ESCAPE_RE, "\\$&");
|
|
}
|
|
function isSpace(code) {
|
|
switch (code) {
|
|
case 9:
|
|
case 32:
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
// Zs (unicode class) || [\t\f\v\r\n]
|
|
function isWhiteSpace(code) {
|
|
if (code >= 8192 && code <= 8202) {
|
|
return true;
|
|
}
|
|
switch (code) {
|
|
case 9:
|
|
// \t
|
|
case 10:
|
|
// \n
|
|
case 11:
|
|
// \v
|
|
case 12:
|
|
// \f
|
|
case 13:
|
|
// \r
|
|
case 32:
|
|
case 160:
|
|
case 5760:
|
|
case 8239:
|
|
case 8287:
|
|
case 12288:
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
/* eslint-disable max-len */
|
|
// Currently without astral characters support.
|
|
function isPunctChar(ch) {
|
|
return UNICODE_PUNCT_RE.test(ch);
|
|
}
|
|
// Markdown ASCII punctuation characters.
|
|
|
|
// !, ", #, $, %, &, ', (, ), *, +, ,, -, ., /, :, ;, <, =, >, ?, @, [, \, ], ^, _, `, {, |, }, or ~
|
|
// http://spec.commonmark.org/0.15/#ascii-punctuation-character
|
|
|
|
// Don't confuse with unicode punctuation !!! It lacks some chars in ascii range.
|
|
|
|
function isMdAsciiPunct(ch) {
|
|
switch (ch) {
|
|
case 33 /* ! */ :
|
|
case 34 /* " */ :
|
|
case 35 /* # */ :
|
|
case 36 /* $ */ :
|
|
case 37 /* % */ :
|
|
case 38 /* & */ :
|
|
case 39 /* ' */ :
|
|
case 40 /* ( */ :
|
|
case 41 /* ) */ :
|
|
case 42 /* * */ :
|
|
case 43 /* + */ :
|
|
case 44 /* , */ :
|
|
case 45 /* - */ :
|
|
case 46 /* . */ :
|
|
case 47 /* / */ :
|
|
case 58 /* : */ :
|
|
case 59 /* ; */ :
|
|
case 60 /* < */ :
|
|
case 61 /* = */ :
|
|
case 62 /* > */ :
|
|
case 63 /* ? */ :
|
|
case 64 /* @ */ :
|
|
case 91 /* [ */ :
|
|
case 92 /* \ */ :
|
|
case 93 /* ] */ :
|
|
case 94 /* ^ */ :
|
|
case 95 /* _ */ :
|
|
case 96 /* ` */ :
|
|
case 123 /* { */ :
|
|
case 124 /* | */ :
|
|
case 125 /* } */ :
|
|
case 126 /* ~ */ :
|
|
return true;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
// Hepler to unify [reference labels].
|
|
|
|
function normalizeReference(str) {
|
|
// Trim and collapse whitespace
|
|
str = str.trim().replace(/\s+/g, " ");
|
|
// In node v10 'ẞ'.toLowerCase() === 'Ṿ', which is presumed to be a bug
|
|
// fixed in v12 (couldn't find any details).
|
|
|
|
// So treat this one as a special case
|
|
// (remove this when node v10 is no longer supported).
|
|
|
|
if ("\u1e9e".toLowerCase() === "\u1e7e") {
|
|
str = str.replace(/\u1e9e/g, "\xdf");
|
|
}
|
|
// .toLowerCase().toUpperCase() should get rid of all differences
|
|
// between letter variants.
|
|
|
|
// Simple .toLowerCase() doesn't normalize 125 code points correctly,
|
|
// and .toUpperCase doesn't normalize 6 of them (list of exceptions:
|
|
// İ, ϴ, ẞ, Ω, K, Å - those are already uppercased, but have differently
|
|
// uppercased versions).
|
|
|
|
// Here's an example showing how it happens. Lets take greek letter omega:
|
|
// uppercase U+0398 (Θ), U+03f4 (ϴ) and lowercase U+03b8 (θ), U+03d1 (ϑ)
|
|
|
|
// Unicode entries:
|
|
// 0398;GREEK CAPITAL LETTER THETA;Lu;0;L;;;;;N;;;;03B8;
|
|
// 03B8;GREEK SMALL LETTER THETA;Ll;0;L;;;;;N;;;0398;;0398
|
|
// 03D1;GREEK THETA SYMBOL;Ll;0;L;<compat> 03B8;;;;N;GREEK SMALL LETTER SCRIPT THETA;;0398;;0398
|
|
// 03F4;GREEK CAPITAL THETA SYMBOL;Lu;0;L;<compat> 0398;;;;N;;;;03B8;
|
|
|
|
// Case-insensitive comparison should treat all of them as equivalent.
|
|
|
|
// But .toLowerCase() doesn't change ϑ (it's already lowercase),
|
|
// and .toUpperCase() doesn't change ϴ (already uppercase).
|
|
|
|
// Applying first lower then upper case normalizes any character:
|
|
// '\u0398\u03f4\u03b8\u03d1'.toLowerCase().toUpperCase() === '\u0398\u0398\u0398\u0398'
|
|
|
|
// Note: this is equivalent to unicode case folding; unicode normalization
|
|
// is a different step that is not required here.
|
|
|
|
// Final result should be uppercased, because it's later stored in an object
|
|
// (this avoid a conflict with Object.prototype members,
|
|
// most notably, `__proto__`)
|
|
|
|
return str.toLowerCase().toUpperCase();
|
|
}
|
|
// Re-export libraries commonly used in both markdown-it and its plugins,
|
|
// so plugins won't have to depend on them explicitly, which reduces their
|
|
// bundled size (e.g. a browser build).
|
|
|
|
const lib = {
|
|
mdurl: mdurl,
|
|
ucmicro: uc_micro
|
|
};
|
|
var utils = {
|
|
lib: lib,
|
|
assign: assign$1,
|
|
isString: isString$1,
|
|
has: has,
|
|
unescapeMd: unescapeMd,
|
|
unescapeAll: unescapeAll,
|
|
isValidEntityCode: isValidEntityCode,
|
|
fromCodePoint: fromCodePoint,
|
|
escapeHtml: escapeHtml,
|
|
arrayReplaceAt: arrayReplaceAt,
|
|
isSpace: isSpace,
|
|
isWhiteSpace: isWhiteSpace,
|
|
isMdAsciiPunct: isMdAsciiPunct,
|
|
isPunctChar: isPunctChar,
|
|
escapeRE: escapeRE$1,
|
|
normalizeReference: normalizeReference
|
|
};
|
|
// Parse link label
|
|
|
|
// this function assumes that first character ("[") already matches;
|
|
// returns the end of the label
|
|
|
|
function parseLinkLabel(state, start, disableNested) {
|
|
let level, found, marker, prevPos;
|
|
const max = state.posMax;
|
|
const oldPos = state.pos;
|
|
state.pos = start + 1;
|
|
level = 1;
|
|
while (state.pos < max) {
|
|
marker = state.src.charCodeAt(state.pos);
|
|
if (marker === 93 /* ] */) {
|
|
level--;
|
|
if (level === 0) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
prevPos = state.pos;
|
|
state.md.inline.skipToken(state);
|
|
if (marker === 91 /* [ */) {
|
|
if (prevPos === state.pos - 1) {
|
|
// increase level if we find text `[`, which is not a part of any token
|
|
level++;
|
|
} else if (disableNested) {
|
|
state.pos = oldPos;
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
let labelEnd = -1;
|
|
if (found) {
|
|
labelEnd = state.pos;
|
|
}
|
|
// restore old state
|
|
state.pos = oldPos;
|
|
return labelEnd;
|
|
}
|
|
// Parse link destination
|
|
|
|
function parseLinkDestination(str, start, max) {
|
|
let code;
|
|
let pos = start;
|
|
const result = {
|
|
ok: false,
|
|
pos: 0,
|
|
lines: 0,
|
|
str: ""
|
|
};
|
|
if (str.charCodeAt(pos) === 60 /* < */) {
|
|
pos++;
|
|
while (pos < max) {
|
|
code = str.charCodeAt(pos);
|
|
if (code === 10 /* \n */) {
|
|
return result;
|
|
}
|
|
if (code === 60 /* < */) {
|
|
return result;
|
|
}
|
|
if (code === 62 /* > */) {
|
|
result.pos = pos + 1;
|
|
result.str = unescapeAll(str.slice(start + 1, pos));
|
|
result.ok = true;
|
|
return result;
|
|
}
|
|
if (code === 92 /* \ */ && pos + 1 < max) {
|
|
pos += 2;
|
|
continue;
|
|
}
|
|
pos++;
|
|
}
|
|
// no closing '>'
|
|
return result;
|
|
}
|
|
// this should be ... } else { ... branch
|
|
let level = 0;
|
|
while (pos < max) {
|
|
code = str.charCodeAt(pos);
|
|
if (code === 32) {
|
|
break;
|
|
}
|
|
// ascii control characters
|
|
if (code < 32 || code === 127) {
|
|
break;
|
|
}
|
|
if (code === 92 /* \ */ && pos + 1 < max) {
|
|
if (str.charCodeAt(pos + 1) === 32) {
|
|
break;
|
|
}
|
|
pos += 2;
|
|
continue;
|
|
}
|
|
if (code === 40 /* ( */) {
|
|
level++;
|
|
if (level > 32) {
|
|
return result;
|
|
}
|
|
}
|
|
if (code === 41 /* ) */) {
|
|
if (level === 0) {
|
|
break;
|
|
}
|
|
level--;
|
|
}
|
|
pos++;
|
|
}
|
|
if (start === pos) {
|
|
return result;
|
|
}
|
|
if (level !== 0) {
|
|
return result;
|
|
}
|
|
result.str = unescapeAll(str.slice(start, pos));
|
|
result.pos = pos;
|
|
result.ok = true;
|
|
return result;
|
|
}
|
|
// Parse link title
|
|
|
|
function parseLinkTitle(str, start, max) {
|
|
let code, marker;
|
|
let lines = 0;
|
|
let pos = start;
|
|
const result = {
|
|
ok: false,
|
|
pos: 0,
|
|
lines: 0,
|
|
str: ""
|
|
};
|
|
if (pos >= max) {
|
|
return result;
|
|
}
|
|
marker = str.charCodeAt(pos);
|
|
if (marker !== 34 /* " */ && marker !== 39 /* ' */ && marker !== 40 /* ( */) {
|
|
return result;
|
|
}
|
|
pos++;
|
|
// if opening marker is "(", switch it to closing marker ")"
|
|
if (marker === 40) {
|
|
marker = 41;
|
|
}
|
|
while (pos < max) {
|
|
code = str.charCodeAt(pos);
|
|
if (code === marker) {
|
|
result.pos = pos + 1;
|
|
result.lines = lines;
|
|
result.str = unescapeAll(str.slice(start + 1, pos));
|
|
result.ok = true;
|
|
return result;
|
|
} else if (code === 40 /* ( */ && marker === 41 /* ) */) {
|
|
return result;
|
|
} else if (code === 10) {
|
|
lines++;
|
|
} else if (code === 92 /* \ */ && pos + 1 < max) {
|
|
pos++;
|
|
if (str.charCodeAt(pos) === 10) {
|
|
lines++;
|
|
}
|
|
}
|
|
pos++;
|
|
}
|
|
return result;
|
|
}
|
|
// Just a shortcut for bulk export
|
|
var helpers = {
|
|
parseLinkLabel: parseLinkLabel,
|
|
parseLinkDestination: parseLinkDestination,
|
|
parseLinkTitle: parseLinkTitle
|
|
};
|
|
/**
|
|
* class Renderer
|
|
*
|
|
* Generates HTML from parsed token stream. Each instance has independent
|
|
* copy of rules. Those can be rewritten with ease. Also, you can add new
|
|
* rules if you create plugin and adds new token types.
|
|
**/ const default_rules = {};
|
|
default_rules.code_inline = function(tokens, idx, options, env, slf) {
|
|
const token = tokens[idx];
|
|
return "<code" + slf.renderAttrs(token) + ">" + escapeHtml(token.content) + "</code>";
|
|
};
|
|
default_rules.code_block = function(tokens, idx, options, env, slf) {
|
|
const token = tokens[idx];
|
|
return "<pre" + slf.renderAttrs(token) + "><code>" + escapeHtml(tokens[idx].content) + "</code></pre>\n";
|
|
};
|
|
default_rules.fence = function(tokens, idx, options, env, slf) {
|
|
const token = tokens[idx];
|
|
const info = token.info ? unescapeAll(token.info).trim() : "";
|
|
let langName = "";
|
|
let langAttrs = "";
|
|
if (info) {
|
|
const arr = info.split(/(\s+)/g);
|
|
langName = arr[0];
|
|
langAttrs = arr.slice(2).join("");
|
|
}
|
|
let highlighted;
|
|
if (options.highlight) {
|
|
highlighted = options.highlight(token.content, langName, langAttrs) || escapeHtml(token.content);
|
|
} else {
|
|
highlighted = escapeHtml(token.content);
|
|
}
|
|
if (highlighted.indexOf("<pre") === 0) {
|
|
return highlighted + "\n";
|
|
}
|
|
// If language exists, inject class gently, without modifying original token.
|
|
// May be, one day we will add .deepClone() for token and simplify this part, but
|
|
// now we prefer to keep things local.
|
|
if (info) {
|
|
const i = token.attrIndex("class");
|
|
const tmpAttrs = token.attrs ? token.attrs.slice() : [];
|
|
if (i < 0) {
|
|
tmpAttrs.push([ "class", options.langPrefix + langName ]);
|
|
} else {
|
|
tmpAttrs[i] = tmpAttrs[i].slice();
|
|
tmpAttrs[i][1] += " " + options.langPrefix + langName;
|
|
}
|
|
// Fake token just to render attributes
|
|
const tmpToken = {
|
|
attrs: tmpAttrs
|
|
};
|
|
return `<pre><code${slf.renderAttrs(tmpToken)}>${highlighted}</code></pre>\n`;
|
|
}
|
|
return `<pre><code${slf.renderAttrs(token)}>${highlighted}</code></pre>\n`;
|
|
};
|
|
default_rules.image = function(tokens, idx, options, env, slf) {
|
|
const token = tokens[idx];
|
|
// "alt" attr MUST be set, even if empty. Because it's mandatory and
|
|
// should be placed on proper position for tests.
|
|
|
|
// Replace content with actual value
|
|
token.attrs[token.attrIndex("alt")][1] = slf.renderInlineAsText(token.children, options, env);
|
|
return slf.renderToken(tokens, idx, options);
|
|
};
|
|
default_rules.hardbreak = function(tokens, idx, options /*, env */) {
|
|
return options.xhtmlOut ? "<br />\n" : "<br>\n";
|
|
};
|
|
default_rules.softbreak = function(tokens, idx, options /*, env */) {
|
|
return options.breaks ? options.xhtmlOut ? "<br />\n" : "<br>\n" : "\n";
|
|
};
|
|
default_rules.text = function(tokens, idx /*, options, env */) {
|
|
return escapeHtml(tokens[idx].content);
|
|
};
|
|
default_rules.html_block = function(tokens, idx /*, options, env */) {
|
|
return tokens[idx].content;
|
|
};
|
|
default_rules.html_inline = function(tokens, idx /*, options, env */) {
|
|
return tokens[idx].content;
|
|
};
|
|
/**
|
|
* new Renderer()
|
|
*
|
|
* Creates new [[Renderer]] instance and fill [[Renderer#rules]] with defaults.
|
|
**/ function Renderer() {
|
|
/**
|
|
* Renderer#rules -> Object
|
|
*
|
|
* Contains render rules for tokens. Can be updated and extended.
|
|
*
|
|
* ##### Example
|
|
*
|
|
* ```javascript
|
|
* var md = require('markdown-it')();
|
|
*
|
|
* md.renderer.rules.strong_open = function () { return '<b>'; };
|
|
* md.renderer.rules.strong_close = function () { return '</b>'; };
|
|
*
|
|
* var result = md.renderInline(...);
|
|
* ```
|
|
*
|
|
* Each rule is called as independent static function with fixed signature:
|
|
*
|
|
* ```javascript
|
|
* function my_token_render(tokens, idx, options, env, renderer) {
|
|
* // ...
|
|
* return renderedHTML;
|
|
* }
|
|
* ```
|
|
*
|
|
* See [source code](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.js)
|
|
* for more details and examples.
|
|
**/
|
|
this.rules = assign$1({}, default_rules);
|
|
}
|
|
/**
|
|
* Renderer.renderAttrs(token) -> String
|
|
*
|
|
* Render token attributes to string.
|
|
**/ Renderer.prototype.renderAttrs = function renderAttrs(token) {
|
|
let i, l, result;
|
|
if (!token.attrs) {
|
|
return "";
|
|
}
|
|
result = "";
|
|
for (i = 0, l = token.attrs.length; i < l; i++) {
|
|
result += " " + escapeHtml(token.attrs[i][0]) + '="' + escapeHtml(token.attrs[i][1]) + '"';
|
|
}
|
|
return result;
|
|
};
|
|
/**
|
|
* Renderer.renderToken(tokens, idx, options) -> String
|
|
* - tokens (Array): list of tokens
|
|
* - idx (Numbed): token index to render
|
|
* - options (Object): params of parser instance
|
|
*
|
|
* Default token renderer. Can be overriden by custom function
|
|
* in [[Renderer#rules]].
|
|
**/ Renderer.prototype.renderToken = function renderToken(tokens, idx, options) {
|
|
const token = tokens[idx];
|
|
let result = "";
|
|
// Tight list paragraphs
|
|
if (token.hidden) {
|
|
return "";
|
|
}
|
|
// Insert a newline between hidden paragraph and subsequent opening
|
|
// block-level tag.
|
|
|
|
// For example, here we should insert a newline before blockquote:
|
|
// - a
|
|
// >
|
|
|
|
if (token.block && token.nesting !== -1 && idx && tokens[idx - 1].hidden) {
|
|
result += "\n";
|
|
}
|
|
// Add token name, e.g. `<img`
|
|
result += (token.nesting === -1 ? "</" : "<") + token.tag;
|
|
// Encode attributes, e.g. `<img src="foo"`
|
|
result += this.renderAttrs(token);
|
|
// Add a slash for self-closing tags, e.g. `<img src="foo" /`
|
|
if (token.nesting === 0 && options.xhtmlOut) {
|
|
result += " /";
|
|
}
|
|
// Check if we need to add a newline after this tag
|
|
let needLf = false;
|
|
if (token.block) {
|
|
needLf = true;
|
|
if (token.nesting === 1) {
|
|
if (idx + 1 < tokens.length) {
|
|
const nextToken = tokens[idx + 1];
|
|
if (nextToken.type === "inline" || nextToken.hidden) {
|
|
// Block-level tag containing an inline tag.
|
|
needLf = false;
|
|
} else if (nextToken.nesting === -1 && nextToken.tag === token.tag) {
|
|
// Opening tag + closing tag of the same type. E.g. `<li></li>`.
|
|
needLf = false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
result += needLf ? ">\n" : ">";
|
|
return result;
|
|
};
|
|
/**
|
|
* Renderer.renderInline(tokens, options, env) -> String
|
|
* - tokens (Array): list on block tokens to render
|
|
* - options (Object): params of parser instance
|
|
* - env (Object): additional data from parsed input (references, for example)
|
|
*
|
|
* The same as [[Renderer.render]], but for single token of `inline` type.
|
|
**/ Renderer.prototype.renderInline = function(tokens, options, env) {
|
|
let result = "";
|
|
const rules = this.rules;
|
|
for (let i = 0, len = tokens.length; i < len; i++) {
|
|
const type = tokens[i].type;
|
|
if (typeof rules[type] !== "undefined") {
|
|
result += rules[type](tokens, i, options, env, this);
|
|
} else {
|
|
result += this.renderToken(tokens, i, options);
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
/** internal
|
|
* Renderer.renderInlineAsText(tokens, options, env) -> String
|
|
* - tokens (Array): list on block tokens to render
|
|
* - options (Object): params of parser instance
|
|
* - env (Object): additional data from parsed input (references, for example)
|
|
*
|
|
* Special kludge for image `alt` attributes to conform CommonMark spec.
|
|
* Don't try to use it! Spec requires to show `alt` content with stripped markup,
|
|
* instead of simple escaping.
|
|
**/ Renderer.prototype.renderInlineAsText = function(tokens, options, env) {
|
|
let result = "";
|
|
for (let i = 0, len = tokens.length; i < len; i++) {
|
|
if (tokens[i].type === "text") {
|
|
result += tokens[i].content;
|
|
} else if (tokens[i].type === "image") {
|
|
result += this.renderInlineAsText(tokens[i].children, options, env);
|
|
} else if (tokens[i].type === "softbreak") {
|
|
result += "\n";
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
/**
|
|
* Renderer.render(tokens, options, env) -> String
|
|
* - tokens (Array): list on block tokens to render
|
|
* - options (Object): params of parser instance
|
|
* - env (Object): additional data from parsed input (references, for example)
|
|
*
|
|
* Takes token stream and generates HTML. Probably, you will never need to call
|
|
* this method directly.
|
|
**/ Renderer.prototype.render = function(tokens, options, env) {
|
|
let result = "";
|
|
const rules = this.rules;
|
|
for (let i = 0, len = tokens.length; i < len; i++) {
|
|
const type = tokens[i].type;
|
|
if (type === "inline") {
|
|
result += this.renderInline(tokens[i].children, options, env);
|
|
} else if (typeof rules[type] !== "undefined") {
|
|
result += rules[type](tokens, i, options, env, this);
|
|
} else {
|
|
result += this.renderToken(tokens, i, options, env);
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
/**
|
|
* class Ruler
|
|
*
|
|
* Helper class, used by [[MarkdownIt#core]], [[MarkdownIt#block]] and
|
|
* [[MarkdownIt#inline]] to manage sequences of functions (rules):
|
|
*
|
|
* - keep rules in defined order
|
|
* - assign the name to each rule
|
|
* - enable/disable rules
|
|
* - add/replace rules
|
|
* - allow assign rules to additional named chains (in the same)
|
|
* - cacheing lists of active rules
|
|
*
|
|
* You will not need use this class directly until write plugins. For simple
|
|
* rules control use [[MarkdownIt.disable]], [[MarkdownIt.enable]] and
|
|
* [[MarkdownIt.use]].
|
|
**/
|
|
/**
|
|
* new Ruler()
|
|
**/ function Ruler() {
|
|
// List of added rules. Each element is:
|
|
// {
|
|
// name: XXX,
|
|
// enabled: Boolean,
|
|
// fn: Function(),
|
|
// alt: [ name2, name3 ]
|
|
// }
|
|
this.__rules__ = [];
|
|
// Cached rule chains.
|
|
|
|
// First level - chain name, '' for default.
|
|
// Second level - diginal anchor for fast filtering by charcodes.
|
|
|
|
this.__cache__ = null;
|
|
}
|
|
// Helper methods, should not be used directly
|
|
// Find rule index by name
|
|
|
|
Ruler.prototype.__find__ = function(name) {
|
|
for (let i = 0; i < this.__rules__.length; i++) {
|
|
if (this.__rules__[i].name === name) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
};
|
|
// Build rules lookup cache
|
|
|
|
Ruler.prototype.__compile__ = function() {
|
|
const self = this;
|
|
const chains = [ "" ];
|
|
// collect unique names
|
|
self.__rules__.forEach((function(rule) {
|
|
if (!rule.enabled) {
|
|
return;
|
|
}
|
|
rule.alt.forEach((function(altName) {
|
|
if (chains.indexOf(altName) < 0) {
|
|
chains.push(altName);
|
|
}
|
|
}));
|
|
}));
|
|
self.__cache__ = {};
|
|
chains.forEach((function(chain) {
|
|
self.__cache__[chain] = [];
|
|
self.__rules__.forEach((function(rule) {
|
|
if (!rule.enabled) {
|
|
return;
|
|
}
|
|
if (chain && rule.alt.indexOf(chain) < 0) {
|
|
return;
|
|
}
|
|
self.__cache__[chain].push(rule.fn);
|
|
}));
|
|
}));
|
|
};
|
|
/**
|
|
* Ruler.at(name, fn [, options])
|
|
* - name (String): rule name to replace.
|
|
* - fn (Function): new rule function.
|
|
* - options (Object): new rule options (not mandatory).
|
|
*
|
|
* Replace rule by name with new function & options. Throws error if name not
|
|
* found.
|
|
*
|
|
* ##### Options:
|
|
*
|
|
* - __alt__ - array with names of "alternate" chains.
|
|
*
|
|
* ##### Example
|
|
*
|
|
* Replace existing typographer replacement rule with new one:
|
|
*
|
|
* ```javascript
|
|
* var md = require('markdown-it')();
|
|
*
|
|
* md.core.ruler.at('replacements', function replace(state) {
|
|
* //...
|
|
* });
|
|
* ```
|
|
**/ Ruler.prototype.at = function(name, fn, options) {
|
|
const index = this.__find__(name);
|
|
const opt = options || {};
|
|
if (index === -1) {
|
|
throw new Error("Parser rule not found: " + name);
|
|
}
|
|
this.__rules__[index].fn = fn;
|
|
this.__rules__[index].alt = opt.alt || [];
|
|
this.__cache__ = null;
|
|
};
|
|
/**
|
|
* Ruler.before(beforeName, ruleName, fn [, options])
|
|
* - beforeName (String): new rule will be added before this one.
|
|
* - ruleName (String): name of added rule.
|
|
* - fn (Function): rule function.
|
|
* - options (Object): rule options (not mandatory).
|
|
*
|
|
* Add new rule to chain before one with given name. See also
|
|
* [[Ruler.after]], [[Ruler.push]].
|
|
*
|
|
* ##### Options:
|
|
*
|
|
* - __alt__ - array with names of "alternate" chains.
|
|
*
|
|
* ##### Example
|
|
*
|
|
* ```javascript
|
|
* var md = require('markdown-it')();
|
|
*
|
|
* md.block.ruler.before('paragraph', 'my_rule', function replace(state) {
|
|
* //...
|
|
* });
|
|
* ```
|
|
**/ Ruler.prototype.before = function(beforeName, ruleName, fn, options) {
|
|
const index = this.__find__(beforeName);
|
|
const opt = options || {};
|
|
if (index === -1) {
|
|
throw new Error("Parser rule not found: " + beforeName);
|
|
}
|
|
this.__rules__.splice(index, 0, {
|
|
name: ruleName,
|
|
enabled: true,
|
|
fn: fn,
|
|
alt: opt.alt || []
|
|
});
|
|
this.__cache__ = null;
|
|
};
|
|
/**
|
|
* Ruler.after(afterName, ruleName, fn [, options])
|
|
* - afterName (String): new rule will be added after this one.
|
|
* - ruleName (String): name of added rule.
|
|
* - fn (Function): rule function.
|
|
* - options (Object): rule options (not mandatory).
|
|
*
|
|
* Add new rule to chain after one with given name. See also
|
|
* [[Ruler.before]], [[Ruler.push]].
|
|
*
|
|
* ##### Options:
|
|
*
|
|
* - __alt__ - array with names of "alternate" chains.
|
|
*
|
|
* ##### Example
|
|
*
|
|
* ```javascript
|
|
* var md = require('markdown-it')();
|
|
*
|
|
* md.inline.ruler.after('text', 'my_rule', function replace(state) {
|
|
* //...
|
|
* });
|
|
* ```
|
|
**/ Ruler.prototype.after = function(afterName, ruleName, fn, options) {
|
|
const index = this.__find__(afterName);
|
|
const opt = options || {};
|
|
if (index === -1) {
|
|
throw new Error("Parser rule not found: " + afterName);
|
|
}
|
|
this.__rules__.splice(index + 1, 0, {
|
|
name: ruleName,
|
|
enabled: true,
|
|
fn: fn,
|
|
alt: opt.alt || []
|
|
});
|
|
this.__cache__ = null;
|
|
};
|
|
/**
|
|
* Ruler.push(ruleName, fn [, options])
|
|
* - ruleName (String): name of added rule.
|
|
* - fn (Function): rule function.
|
|
* - options (Object): rule options (not mandatory).
|
|
*
|
|
* Push new rule to the end of chain. See also
|
|
* [[Ruler.before]], [[Ruler.after]].
|
|
*
|
|
* ##### Options:
|
|
*
|
|
* - __alt__ - array with names of "alternate" chains.
|
|
*
|
|
* ##### Example
|
|
*
|
|
* ```javascript
|
|
* var md = require('markdown-it')();
|
|
*
|
|
* md.core.ruler.push('my_rule', function replace(state) {
|
|
* //...
|
|
* });
|
|
* ```
|
|
**/ Ruler.prototype.push = function(ruleName, fn, options) {
|
|
const opt = options || {};
|
|
this.__rules__.push({
|
|
name: ruleName,
|
|
enabled: true,
|
|
fn: fn,
|
|
alt: opt.alt || []
|
|
});
|
|
this.__cache__ = null;
|
|
};
|
|
/**
|
|
* Ruler.enable(list [, ignoreInvalid]) -> Array
|
|
* - list (String|Array): list of rule names to enable.
|
|
* - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
|
|
*
|
|
* Enable rules with given names. If any rule name not found - throw Error.
|
|
* Errors can be disabled by second param.
|
|
*
|
|
* Returns list of found rule names (if no exception happened).
|
|
*
|
|
* See also [[Ruler.disable]], [[Ruler.enableOnly]].
|
|
**/ Ruler.prototype.enable = function(list, ignoreInvalid) {
|
|
if (!Array.isArray(list)) {
|
|
list = [ list ];
|
|
}
|
|
const result = [];
|
|
// Search by name and enable
|
|
list.forEach((function(name) {
|
|
const idx = this.__find__(name);
|
|
if (idx < 0) {
|
|
if (ignoreInvalid) {
|
|
return;
|
|
}
|
|
throw new Error("Rules manager: invalid rule name " + name);
|
|
}
|
|
this.__rules__[idx].enabled = true;
|
|
result.push(name);
|
|
}), this);
|
|
this.__cache__ = null;
|
|
return result;
|
|
};
|
|
/**
|
|
* Ruler.enableOnly(list [, ignoreInvalid])
|
|
* - list (String|Array): list of rule names to enable (whitelist).
|
|
* - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
|
|
*
|
|
* Enable rules with given names, and disable everything else. If any rule name
|
|
* not found - throw Error. Errors can be disabled by second param.
|
|
*
|
|
* See also [[Ruler.disable]], [[Ruler.enable]].
|
|
**/ Ruler.prototype.enableOnly = function(list, ignoreInvalid) {
|
|
if (!Array.isArray(list)) {
|
|
list = [ list ];
|
|
}
|
|
this.__rules__.forEach((function(rule) {
|
|
rule.enabled = false;
|
|
}));
|
|
this.enable(list, ignoreInvalid);
|
|
};
|
|
/**
|
|
* Ruler.disable(list [, ignoreInvalid]) -> Array
|
|
* - list (String|Array): list of rule names to disable.
|
|
* - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
|
|
*
|
|
* Disable rules with given names. If any rule name not found - throw Error.
|
|
* Errors can be disabled by second param.
|
|
*
|
|
* Returns list of found rule names (if no exception happened).
|
|
*
|
|
* See also [[Ruler.enable]], [[Ruler.enableOnly]].
|
|
**/ Ruler.prototype.disable = function(list, ignoreInvalid) {
|
|
if (!Array.isArray(list)) {
|
|
list = [ list ];
|
|
}
|
|
const result = [];
|
|
// Search by name and disable
|
|
list.forEach((function(name) {
|
|
const idx = this.__find__(name);
|
|
if (idx < 0) {
|
|
if (ignoreInvalid) {
|
|
return;
|
|
}
|
|
throw new Error("Rules manager: invalid rule name " + name);
|
|
}
|
|
this.__rules__[idx].enabled = false;
|
|
result.push(name);
|
|
}), this);
|
|
this.__cache__ = null;
|
|
return result;
|
|
};
|
|
/**
|
|
* Ruler.getRules(chainName) -> Array
|
|
*
|
|
* Return array of active functions (rules) for given chain name. It analyzes
|
|
* rules configuration, compiles caches if not exists and returns result.
|
|
*
|
|
* Default chain name is `''` (empty string). It can't be skipped. That's
|
|
* done intentionally, to keep signature monomorphic for high speed.
|
|
**/ Ruler.prototype.getRules = function(chainName) {
|
|
if (this.__cache__ === null) {
|
|
this.__compile__();
|
|
}
|
|
// Chain can be empty, if rules disabled. But we still have to return Array.
|
|
return this.__cache__[chainName] || [];
|
|
};
|
|
// Token class
|
|
/**
|
|
* class Token
|
|
**/
|
|
/**
|
|
* new Token(type, tag, nesting)
|
|
*
|
|
* Create new token and fill passed properties.
|
|
**/ function Token(type, tag, nesting) {
|
|
/**
|
|
* Token#type -> String
|
|
*
|
|
* Type of the token (string, e.g. "paragraph_open")
|
|
**/
|
|
this.type = type;
|
|
/**
|
|
* Token#tag -> String
|
|
*
|
|
* html tag name, e.g. "p"
|
|
**/ this.tag = tag;
|
|
/**
|
|
* Token#attrs -> Array
|
|
*
|
|
* Html attributes. Format: `[ [ name1, value1 ], [ name2, value2 ] ]`
|
|
**/ this.attrs = null;
|
|
/**
|
|
* Token#map -> Array
|
|
*
|
|
* Source map info. Format: `[ line_begin, line_end ]`
|
|
**/ this.map = null;
|
|
/**
|
|
* Token#nesting -> Number
|
|
*
|
|
* Level change (number in {-1, 0, 1} set), where:
|
|
*
|
|
* - `1` means the tag is opening
|
|
* - `0` means the tag is self-closing
|
|
* - `-1` means the tag is closing
|
|
**/ this.nesting = nesting;
|
|
/**
|
|
* Token#level -> Number
|
|
*
|
|
* nesting level, the same as `state.level`
|
|
**/ this.level = 0;
|
|
/**
|
|
* Token#children -> Array
|
|
*
|
|
* An array of child nodes (inline and img tokens)
|
|
**/ this.children = null;
|
|
/**
|
|
* Token#content -> String
|
|
*
|
|
* In a case of self-closing tag (code, html, fence, etc.),
|
|
* it has contents of this tag.
|
|
**/ this.content = "";
|
|
/**
|
|
* Token#markup -> String
|
|
*
|
|
* '*' or '_' for emphasis, fence string for fence, etc.
|
|
**/ this.markup = "";
|
|
/**
|
|
* Token#info -> String
|
|
*
|
|
* Additional information:
|
|
*
|
|
* - Info string for "fence" tokens
|
|
* - The value "auto" for autolink "link_open" and "link_close" tokens
|
|
* - The string value of the item marker for ordered-list "list_item_open" tokens
|
|
**/ this.info = "";
|
|
/**
|
|
* Token#meta -> Object
|
|
*
|
|
* A place for plugins to store an arbitrary data
|
|
**/ this.meta = null;
|
|
/**
|
|
* Token#block -> Boolean
|
|
*
|
|
* True for block-level tokens, false for inline tokens.
|
|
* Used in renderer to calculate line breaks
|
|
**/ this.block = false;
|
|
/**
|
|
* Token#hidden -> Boolean
|
|
*
|
|
* If it's true, ignore this element when rendering. Used for tight lists
|
|
* to hide paragraphs.
|
|
**/ this.hidden = false;
|
|
}
|
|
/**
|
|
* Token.attrIndex(name) -> Number
|
|
*
|
|
* Search attribute index by name.
|
|
**/ Token.prototype.attrIndex = function attrIndex(name) {
|
|
if (!this.attrs) {
|
|
return -1;
|
|
}
|
|
const attrs = this.attrs;
|
|
for (let i = 0, len = attrs.length; i < len; i++) {
|
|
if (attrs[i][0] === name) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
};
|
|
/**
|
|
* Token.attrPush(attrData)
|
|
*
|
|
* Add `[ name, value ]` attribute to list. Init attrs if necessary
|
|
**/ Token.prototype.attrPush = function attrPush(attrData) {
|
|
if (this.attrs) {
|
|
this.attrs.push(attrData);
|
|
} else {
|
|
this.attrs = [ attrData ];
|
|
}
|
|
};
|
|
/**
|
|
* Token.attrSet(name, value)
|
|
*
|
|
* Set `name` attribute to `value`. Override old value if exists.
|
|
**/ Token.prototype.attrSet = function attrSet(name, value) {
|
|
const idx = this.attrIndex(name);
|
|
const attrData = [ name, value ];
|
|
if (idx < 0) {
|
|
this.attrPush(attrData);
|
|
} else {
|
|
this.attrs[idx] = attrData;
|
|
}
|
|
};
|
|
/**
|
|
* Token.attrGet(name)
|
|
*
|
|
* Get the value of attribute `name`, or null if it does not exist.
|
|
**/ Token.prototype.attrGet = function attrGet(name) {
|
|
const idx = this.attrIndex(name);
|
|
let value = null;
|
|
if (idx >= 0) {
|
|
value = this.attrs[idx][1];
|
|
}
|
|
return value;
|
|
};
|
|
/**
|
|
* Token.attrJoin(name, value)
|
|
*
|
|
* Join value to existing attribute via space. Or create new attribute if not
|
|
* exists. Useful to operate with token classes.
|
|
**/ Token.prototype.attrJoin = function attrJoin(name, value) {
|
|
const idx = this.attrIndex(name);
|
|
if (idx < 0) {
|
|
this.attrPush([ name, value ]);
|
|
} else {
|
|
this.attrs[idx][1] = this.attrs[idx][1] + " " + value;
|
|
}
|
|
};
|
|
// Core state object
|
|
|
|
function StateCore(src, md, env) {
|
|
this.src = src;
|
|
this.env = env;
|
|
this.tokens = [];
|
|
this.inlineMode = false;
|
|
this.md = md;
|
|
// link to parser instance
|
|
}
|
|
// re-export Token class to use in core rules
|
|
StateCore.prototype.Token = Token;
|
|
// Normalize input string
|
|
// https://spec.commonmark.org/0.29/#line-ending
|
|
const NEWLINES_RE = /\r\n?|\n/g;
|
|
const NULL_RE = /\0/g;
|
|
function normalize(state) {
|
|
let str;
|
|
// Normalize newlines
|
|
str = state.src.replace(NEWLINES_RE, "\n");
|
|
// Replace NULL characters
|
|
str = str.replace(NULL_RE, "\ufffd");
|
|
state.src = str;
|
|
}
|
|
function block(state) {
|
|
let token;
|
|
if (state.inlineMode) {
|
|
token = new state.Token("inline", "", 0);
|
|
token.content = state.src;
|
|
token.map = [ 0, 1 ];
|
|
token.children = [];
|
|
state.tokens.push(token);
|
|
} else {
|
|
state.md.block.parse(state.src, state.md, state.env, state.tokens);
|
|
}
|
|
}
|
|
function inline(state) {
|
|
const tokens = state.tokens;
|
|
// Parse inlines
|
|
for (let i = 0, l = tokens.length; i < l; i++) {
|
|
const tok = tokens[i];
|
|
if (tok.type === "inline") {
|
|
state.md.inline.parse(tok.content, state.md, state.env, tok.children);
|
|
}
|
|
}
|
|
}
|
|
// Replace link-like texts with link nodes.
|
|
|
|
// Currently restricted by `md.validateLink()` to http/https/ftp
|
|
|
|
function isLinkOpen$1(str) {
|
|
return /^<a[>\s]/i.test(str);
|
|
}
|
|
function isLinkClose$1(str) {
|
|
return /^<\/a\s*>/i.test(str);
|
|
}
|
|
function linkify$1(state) {
|
|
const blockTokens = state.tokens;
|
|
if (!state.md.options.linkify) {
|
|
return;
|
|
}
|
|
for (let j = 0, l = blockTokens.length; j < l; j++) {
|
|
if (blockTokens[j].type !== "inline" || !state.md.linkify.pretest(blockTokens[j].content)) {
|
|
continue;
|
|
}
|
|
let tokens = blockTokens[j].children;
|
|
let htmlLinkLevel = 0;
|
|
// We scan from the end, to keep position when new tags added.
|
|
// Use reversed logic in links start/end match
|
|
for (let i = tokens.length - 1; i >= 0; i--) {
|
|
const currentToken = tokens[i];
|
|
// Skip content of markdown links
|
|
if (currentToken.type === "link_close") {
|
|
i--;
|
|
while (tokens[i].level !== currentToken.level && tokens[i].type !== "link_open") {
|
|
i--;
|
|
}
|
|
continue;
|
|
}
|
|
// Skip content of html tag links
|
|
if (currentToken.type === "html_inline") {
|
|
if (isLinkOpen$1(currentToken.content) && htmlLinkLevel > 0) {
|
|
htmlLinkLevel--;
|
|
}
|
|
if (isLinkClose$1(currentToken.content)) {
|
|
htmlLinkLevel++;
|
|
}
|
|
}
|
|
if (htmlLinkLevel > 0) {
|
|
continue;
|
|
}
|
|
if (currentToken.type === "text" && state.md.linkify.test(currentToken.content)) {
|
|
const text = currentToken.content;
|
|
let links = state.md.linkify.match(text);
|
|
// Now split string to nodes
|
|
const nodes = [];
|
|
let level = currentToken.level;
|
|
let lastPos = 0;
|
|
// forbid escape sequence at the start of the string,
|
|
// this avoids http\://example.com/ from being linkified as
|
|
// http:<a href="//example.com/">//example.com/</a>
|
|
if (links.length > 0 && links[0].index === 0 && i > 0 && tokens[i - 1].type === "text_special") {
|
|
links = links.slice(1);
|
|
}
|
|
for (let ln = 0; ln < links.length; ln++) {
|
|
const url = links[ln].url;
|
|
const fullUrl = state.md.normalizeLink(url);
|
|
if (!state.md.validateLink(fullUrl)) {
|
|
continue;
|
|
}
|
|
let urlText = links[ln].text;
|
|
// Linkifier might send raw hostnames like "example.com", where url
|
|
// starts with domain name. So we prepend http:// in those cases,
|
|
// and remove it afterwards.
|
|
|
|
if (!links[ln].schema) {
|
|
urlText = state.md.normalizeLinkText("http://" + urlText).replace(/^http:\/\//, "");
|
|
} else if (links[ln].schema === "mailto:" && !/^mailto:/i.test(urlText)) {
|
|
urlText = state.md.normalizeLinkText("mailto:" + urlText).replace(/^mailto:/, "");
|
|
} else {
|
|
urlText = state.md.normalizeLinkText(urlText);
|
|
}
|
|
const pos = links[ln].index;
|
|
if (pos > lastPos) {
|
|
const token = new state.Token("text", "", 0);
|
|
token.content = text.slice(lastPos, pos);
|
|
token.level = level;
|
|
nodes.push(token);
|
|
}
|
|
const token_o = new state.Token("link_open", "a", 1);
|
|
token_o.attrs = [ [ "href", fullUrl ] ];
|
|
token_o.level = level++;
|
|
token_o.markup = "linkify";
|
|
token_o.info = "auto";
|
|
nodes.push(token_o);
|
|
const token_t = new state.Token("text", "", 0);
|
|
token_t.content = urlText;
|
|
token_t.level = level;
|
|
nodes.push(token_t);
|
|
const token_c = new state.Token("link_close", "a", -1);
|
|
token_c.level = --level;
|
|
token_c.markup = "linkify";
|
|
token_c.info = "auto";
|
|
nodes.push(token_c);
|
|
lastPos = links[ln].lastIndex;
|
|
}
|
|
if (lastPos < text.length) {
|
|
const token = new state.Token("text", "", 0);
|
|
token.content = text.slice(lastPos);
|
|
token.level = level;
|
|
nodes.push(token);
|
|
}
|
|
// replace current node
|
|
blockTokens[j].children = tokens = arrayReplaceAt(tokens, i, nodes);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Simple typographic replacements
|
|
|
|
// (c) (C) → ©
|
|
// (tm) (TM) → ™
|
|
// (r) (R) → ®
|
|
// +- → ±
|
|
// ... → … (also ?.... → ?.., !.... → !..)
|
|
// ???????? → ???, !!!!! → !!!, `,,` → `,`
|
|
// -- → –, --- → —
|
|
|
|
// TODO:
|
|
// - fractionals 1/2, 1/4, 3/4 -> ½, ¼, ¾
|
|
// - multiplications 2 x 4 -> 2 × 4
|
|
const RARE_RE = /\+-|\.\.|\?\?\?\?|!!!!|,,|--/;
|
|
// Workaround for phantomjs - need regex without /g flag,
|
|
// or root check will fail every second time
|
|
const SCOPED_ABBR_TEST_RE = /\((c|tm|r)\)/i;
|
|
const SCOPED_ABBR_RE = /\((c|tm|r)\)/gi;
|
|
const SCOPED_ABBR = {
|
|
c: "\xa9",
|
|
r: "\xae",
|
|
tm: "\u2122"
|
|
};
|
|
function replaceFn(match, name) {
|
|
return SCOPED_ABBR[name.toLowerCase()];
|
|
}
|
|
function replace_scoped(inlineTokens) {
|
|
let inside_autolink = 0;
|
|
for (let i = inlineTokens.length - 1; i >= 0; i--) {
|
|
const token = inlineTokens[i];
|
|
if (token.type === "text" && !inside_autolink) {
|
|
token.content = token.content.replace(SCOPED_ABBR_RE, replaceFn);
|
|
}
|
|
if (token.type === "link_open" && token.info === "auto") {
|
|
inside_autolink--;
|
|
}
|
|
if (token.type === "link_close" && token.info === "auto") {
|
|
inside_autolink++;
|
|
}
|
|
}
|
|
}
|
|
function replace_rare(inlineTokens) {
|
|
let inside_autolink = 0;
|
|
for (let i = inlineTokens.length - 1; i >= 0; i--) {
|
|
const token = inlineTokens[i];
|
|
if (token.type === "text" && !inside_autolink) {
|
|
if (RARE_RE.test(token.content)) {
|
|
token.content = token.content.replace(/\+-/g, "\xb1").replace(/\.{2,}/g, "\u2026").replace(/([?!])\u2026/g, "$1..").replace(/([?!]){4,}/g, "$1$1$1").replace(/,{2,}/g, ",").replace(/(^|[^-])---(?=[^-]|$)/gm, "$1\u2014").replace(/(^|\s)--(?=\s|$)/gm, "$1\u2013").replace(/(^|[^-\s])--(?=[^-\s]|$)/gm, "$1\u2013");
|
|
}
|
|
}
|
|
if (token.type === "link_open" && token.info === "auto") {
|
|
inside_autolink--;
|
|
}
|
|
if (token.type === "link_close" && token.info === "auto") {
|
|
inside_autolink++;
|
|
}
|
|
}
|
|
}
|
|
function replace(state) {
|
|
let blkIdx;
|
|
if (!state.md.options.typographer) {
|
|
return;
|
|
}
|
|
for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {
|
|
if (state.tokens[blkIdx].type !== "inline") {
|
|
continue;
|
|
}
|
|
if (SCOPED_ABBR_TEST_RE.test(state.tokens[blkIdx].content)) {
|
|
replace_scoped(state.tokens[blkIdx].children);
|
|
}
|
|
if (RARE_RE.test(state.tokens[blkIdx].content)) {
|
|
replace_rare(state.tokens[blkIdx].children);
|
|
}
|
|
}
|
|
}
|
|
// Convert straight quotation marks to typographic ones
|
|
|
|
const QUOTE_TEST_RE = /['"]/;
|
|
const QUOTE_RE = /['"]/g;
|
|
const APOSTROPHE = "\u2019";
|
|
/* ’ */ function replaceAt(str, index, ch) {
|
|
return str.slice(0, index) + ch + str.slice(index + 1);
|
|
}
|
|
function process_inlines(tokens, state) {
|
|
let j;
|
|
const stack = [];
|
|
for (let i = 0; i < tokens.length; i++) {
|
|
const token = tokens[i];
|
|
const thisLevel = tokens[i].level;
|
|
for (j = stack.length - 1; j >= 0; j--) {
|
|
if (stack[j].level <= thisLevel) {
|
|
break;
|
|
}
|
|
}
|
|
stack.length = j + 1;
|
|
if (token.type !== "text") {
|
|
continue;
|
|
}
|
|
let text = token.content;
|
|
let pos = 0;
|
|
let max = text.length;
|
|
/* eslint no-labels:0,block-scoped-var:0 */ OUTER: while (pos < max) {
|
|
QUOTE_RE.lastIndex = pos;
|
|
const t = QUOTE_RE.exec(text);
|
|
if (!t) {
|
|
break;
|
|
}
|
|
let canOpen = true;
|
|
let canClose = true;
|
|
pos = t.index + 1;
|
|
const isSingle = t[0] === "'";
|
|
// Find previous character,
|
|
// default to space if it's the beginning of the line
|
|
|
|
let lastChar = 32;
|
|
if (t.index - 1 >= 0) {
|
|
lastChar = text.charCodeAt(t.index - 1);
|
|
} else {
|
|
for (j = i - 1; j >= 0; j--) {
|
|
if (tokens[j].type === "softbreak" || tokens[j].type === "hardbreak") break;
|
|
// lastChar defaults to 0x20
|
|
if (!tokens[j].content) continue;
|
|
// should skip all tokens except 'text', 'html_inline' or 'code_inline'
|
|
lastChar = tokens[j].content.charCodeAt(tokens[j].content.length - 1);
|
|
break;
|
|
}
|
|
}
|
|
// Find next character,
|
|
// default to space if it's the end of the line
|
|
|
|
let nextChar = 32;
|
|
if (pos < max) {
|
|
nextChar = text.charCodeAt(pos);
|
|
} else {
|
|
for (j = i + 1; j < tokens.length; j++) {
|
|
if (tokens[j].type === "softbreak" || tokens[j].type === "hardbreak") break;
|
|
// nextChar defaults to 0x20
|
|
if (!tokens[j].content) continue;
|
|
// should skip all tokens except 'text', 'html_inline' or 'code_inline'
|
|
nextChar = tokens[j].content.charCodeAt(0);
|
|
break;
|
|
}
|
|
}
|
|
const isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(String.fromCharCode(lastChar));
|
|
const isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(String.fromCharCode(nextChar));
|
|
const isLastWhiteSpace = isWhiteSpace(lastChar);
|
|
const isNextWhiteSpace = isWhiteSpace(nextChar);
|
|
if (isNextWhiteSpace) {
|
|
canOpen = false;
|
|
} else if (isNextPunctChar) {
|
|
if (!(isLastWhiteSpace || isLastPunctChar)) {
|
|
canOpen = false;
|
|
}
|
|
}
|
|
if (isLastWhiteSpace) {
|
|
canClose = false;
|
|
} else if (isLastPunctChar) {
|
|
if (!(isNextWhiteSpace || isNextPunctChar)) {
|
|
canClose = false;
|
|
}
|
|
}
|
|
if (nextChar === 34 /* " */ && t[0] === '"') {
|
|
if (lastChar >= 48 /* 0 */ && lastChar <= 57 /* 9 */) {
|
|
// special case: 1"" - count first quote as an inch
|
|
canClose = canOpen = false;
|
|
}
|
|
}
|
|
if (canOpen && canClose) {
|
|
// Replace quotes in the middle of punctuation sequence, but not
|
|
// in the middle of the words, i.e.:
|
|
// 1. foo " bar " baz - not replaced
|
|
// 2. foo-"-bar-"-baz - replaced
|
|
// 3. foo"bar"baz - not replaced
|
|
canOpen = isLastPunctChar;
|
|
canClose = isNextPunctChar;
|
|
}
|
|
if (!canOpen && !canClose) {
|
|
// middle of word
|
|
if (isSingle) {
|
|
token.content = replaceAt(token.content, t.index, APOSTROPHE);
|
|
}
|
|
continue;
|
|
}
|
|
if (canClose) {
|
|
// this could be a closing quote, rewind the stack to get a match
|
|
for (j = stack.length - 1; j >= 0; j--) {
|
|
let item = stack[j];
|
|
if (stack[j].level < thisLevel) {
|
|
break;
|
|
}
|
|
if (item.single === isSingle && stack[j].level === thisLevel) {
|
|
item = stack[j];
|
|
let openQuote;
|
|
let closeQuote;
|
|
if (isSingle) {
|
|
openQuote = state.md.options.quotes[2];
|
|
closeQuote = state.md.options.quotes[3];
|
|
} else {
|
|
openQuote = state.md.options.quotes[0];
|
|
closeQuote = state.md.options.quotes[1];
|
|
}
|
|
// replace token.content *before* tokens[item.token].content,
|
|
// because, if they are pointing at the same token, replaceAt
|
|
// could mess up indices when quote length != 1
|
|
token.content = replaceAt(token.content, t.index, closeQuote);
|
|
tokens[item.token].content = replaceAt(tokens[item.token].content, item.pos, openQuote);
|
|
pos += closeQuote.length - 1;
|
|
if (item.token === i) {
|
|
pos += openQuote.length - 1;
|
|
}
|
|
text = token.content;
|
|
max = text.length;
|
|
stack.length = j;
|
|
continue OUTER;
|
|
}
|
|
}
|
|
}
|
|
if (canOpen) {
|
|
stack.push({
|
|
token: i,
|
|
pos: t.index,
|
|
single: isSingle,
|
|
level: thisLevel
|
|
});
|
|
} else if (canClose && isSingle) {
|
|
token.content = replaceAt(token.content, t.index, APOSTROPHE);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
function smartquotes(state) {
|
|
/* eslint max-depth:0 */
|
|
if (!state.md.options.typographer) {
|
|
return;
|
|
}
|
|
for (let blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {
|
|
if (state.tokens[blkIdx].type !== "inline" || !QUOTE_TEST_RE.test(state.tokens[blkIdx].content)) {
|
|
continue;
|
|
}
|
|
process_inlines(state.tokens[blkIdx].children, state);
|
|
}
|
|
}
|
|
// Join raw text tokens with the rest of the text
|
|
|
|
// This is set as a separate rule to provide an opportunity for plugins
|
|
// to run text replacements after text join, but before escape join.
|
|
|
|
// For example, `\:)` shouldn't be replaced with an emoji.
|
|
|
|
function text_join(state) {
|
|
let curr, last;
|
|
const blockTokens = state.tokens;
|
|
const l = blockTokens.length;
|
|
for (let j = 0; j < l; j++) {
|
|
if (blockTokens[j].type !== "inline") continue;
|
|
const tokens = blockTokens[j].children;
|
|
const max = tokens.length;
|
|
for (curr = 0; curr < max; curr++) {
|
|
if (tokens[curr].type === "text_special") {
|
|
tokens[curr].type = "text";
|
|
}
|
|
}
|
|
for (curr = last = 0; curr < max; curr++) {
|
|
if (tokens[curr].type === "text" && curr + 1 < max && tokens[curr + 1].type === "text") {
|
|
// collapse two adjacent text nodes
|
|
tokens[curr + 1].content = tokens[curr].content + tokens[curr + 1].content;
|
|
} else {
|
|
if (curr !== last) {
|
|
tokens[last] = tokens[curr];
|
|
}
|
|
last++;
|
|
}
|
|
}
|
|
if (curr !== last) {
|
|
tokens.length = last;
|
|
}
|
|
}
|
|
}
|
|
/** internal
|
|
* class Core
|
|
*
|
|
* Top-level rules executor. Glues block/inline parsers and does intermediate
|
|
* transformations.
|
|
**/ const _rules$2 = [ [ "normalize", normalize ], [ "block", block ], [ "inline", inline ], [ "linkify", linkify$1 ], [ "replacements", replace ], [ "smartquotes", smartquotes ],
|
|
// `text_join` finds `text_special` tokens (for escape sequences)
|
|
// and joins them with the rest of the text
|
|
[ "text_join", text_join ] ];
|
|
/**
|
|
* new Core()
|
|
**/ function Core() {
|
|
/**
|
|
* Core#ruler -> Ruler
|
|
*
|
|
* [[Ruler]] instance. Keep configuration of core rules.
|
|
**/
|
|
this.ruler = new Ruler;
|
|
for (let i = 0; i < _rules$2.length; i++) {
|
|
this.ruler.push(_rules$2[i][0], _rules$2[i][1]);
|
|
}
|
|
}
|
|
/**
|
|
* Core.process(state)
|
|
*
|
|
* Executes core chain rules.
|
|
**/ Core.prototype.process = function(state) {
|
|
const rules = this.ruler.getRules("");
|
|
for (let i = 0, l = rules.length; i < l; i++) {
|
|
rules[i](state);
|
|
}
|
|
};
|
|
Core.prototype.State = StateCore;
|
|
// Parser state class
|
|
function StateBlock(src, md, env, tokens) {
|
|
this.src = src;
|
|
// link to parser instance
|
|
this.md = md;
|
|
this.env = env;
|
|
|
|
// Internal state vartiables
|
|
|
|
this.tokens = tokens;
|
|
this.bMarks = [];
|
|
// line begin offsets for fast jumps
|
|
this.eMarks = [];
|
|
// line end offsets for fast jumps
|
|
this.tShift = [];
|
|
// offsets of the first non-space characters (tabs not expanded)
|
|
this.sCount = [];
|
|
// indents for each line (tabs expanded)
|
|
// An amount of virtual spaces (tabs expanded) between beginning
|
|
// of each line (bMarks) and real beginning of that line.
|
|
|
|
// It exists only as a hack because blockquotes override bMarks
|
|
// losing information in the process.
|
|
|
|
// It's used only when expanding tabs, you can think about it as
|
|
// an initial tab length, e.g. bsCount=21 applied to string `\t123`
|
|
// means first tab should be expanded to 4-21%4 === 3 spaces.
|
|
|
|
this.bsCount = [];
|
|
// block parser variables
|
|
// required block content indent (for example, if we are
|
|
// inside a list, it would be positioned after list marker)
|
|
this.blkIndent = 0;
|
|
this.line = 0;
|
|
// line index in src
|
|
this.lineMax = 0;
|
|
// lines count
|
|
this.tight = false;
|
|
// loose/tight mode for lists
|
|
this.ddIndent = -1;
|
|
// indent of the current dd block (-1 if there isn't any)
|
|
this.listIndent = -1;
|
|
// indent of the current list block (-1 if there isn't any)
|
|
// can be 'blockquote', 'list', 'root', 'paragraph' or 'reference'
|
|
// used in lists to determine if they interrupt a paragraph
|
|
this.parentType = "root";
|
|
this.level = 0;
|
|
// Create caches
|
|
// Generate markers.
|
|
const s = this.src;
|
|
for (let start = 0, pos = 0, indent = 0, offset = 0, len = s.length, indent_found = false; pos < len; pos++) {
|
|
const ch = s.charCodeAt(pos);
|
|
if (!indent_found) {
|
|
if (isSpace(ch)) {
|
|
indent++;
|
|
if (ch === 9) {
|
|
offset += 4 - offset % 4;
|
|
} else {
|
|
offset++;
|
|
}
|
|
continue;
|
|
} else {
|
|
indent_found = true;
|
|
}
|
|
}
|
|
if (ch === 10 || pos === len - 1) {
|
|
if (ch !== 10) {
|
|
pos++;
|
|
}
|
|
this.bMarks.push(start);
|
|
this.eMarks.push(pos);
|
|
this.tShift.push(indent);
|
|
this.sCount.push(offset);
|
|
this.bsCount.push(0);
|
|
indent_found = false;
|
|
indent = 0;
|
|
offset = 0;
|
|
start = pos + 1;
|
|
}
|
|
}
|
|
// Push fake entry to simplify cache bounds checks
|
|
this.bMarks.push(s.length);
|
|
this.eMarks.push(s.length);
|
|
this.tShift.push(0);
|
|
this.sCount.push(0);
|
|
this.bsCount.push(0);
|
|
this.lineMax = this.bMarks.length - 1;
|
|
// don't count last fake line
|
|
}
|
|
// Push new token to "stream".
|
|
|
|
StateBlock.prototype.push = function(type, tag, nesting) {
|
|
const token = new Token(type, tag, nesting);
|
|
token.block = true;
|
|
if (nesting < 0) this.level--;
|
|
// closing tag
|
|
token.level = this.level;
|
|
if (nesting > 0) this.level++;
|
|
// opening tag
|
|
this.tokens.push(token);
|
|
return token;
|
|
};
|
|
StateBlock.prototype.isEmpty = function isEmpty(line) {
|
|
return this.bMarks[line] + this.tShift[line] >= this.eMarks[line];
|
|
};
|
|
StateBlock.prototype.skipEmptyLines = function skipEmptyLines(from) {
|
|
for (let max = this.lineMax; from < max; from++) {
|
|
if (this.bMarks[from] + this.tShift[from] < this.eMarks[from]) {
|
|
break;
|
|
}
|
|
}
|
|
return from;
|
|
};
|
|
// Skip spaces from given position.
|
|
StateBlock.prototype.skipSpaces = function skipSpaces(pos) {
|
|
for (let max = this.src.length; pos < max; pos++) {
|
|
const ch = this.src.charCodeAt(pos);
|
|
if (!isSpace(ch)) {
|
|
break;
|
|
}
|
|
}
|
|
return pos;
|
|
};
|
|
// Skip spaces from given position in reverse.
|
|
StateBlock.prototype.skipSpacesBack = function skipSpacesBack(pos, min) {
|
|
if (pos <= min) {
|
|
return pos;
|
|
}
|
|
while (pos > min) {
|
|
if (!isSpace(this.src.charCodeAt(--pos))) {
|
|
return pos + 1;
|
|
}
|
|
}
|
|
return pos;
|
|
};
|
|
// Skip char codes from given position
|
|
StateBlock.prototype.skipChars = function skipChars(pos, code) {
|
|
for (let max = this.src.length; pos < max; pos++) {
|
|
if (this.src.charCodeAt(pos) !== code) {
|
|
break;
|
|
}
|
|
}
|
|
return pos;
|
|
};
|
|
// Skip char codes reverse from given position - 1
|
|
StateBlock.prototype.skipCharsBack = function skipCharsBack(pos, code, min) {
|
|
if (pos <= min) {
|
|
return pos;
|
|
}
|
|
while (pos > min) {
|
|
if (code !== this.src.charCodeAt(--pos)) {
|
|
return pos + 1;
|
|
}
|
|
}
|
|
return pos;
|
|
};
|
|
// cut lines range from source.
|
|
StateBlock.prototype.getLines = function getLines(begin, end, indent, keepLastLF) {
|
|
if (begin >= end) {
|
|
return "";
|
|
}
|
|
const queue = new Array(end - begin);
|
|
for (let i = 0, line = begin; line < end; line++, i++) {
|
|
let lineIndent = 0;
|
|
const lineStart = this.bMarks[line];
|
|
let first = lineStart;
|
|
let last;
|
|
if (line + 1 < end || keepLastLF) {
|
|
// No need for bounds check because we have fake entry on tail.
|
|
last = this.eMarks[line] + 1;
|
|
} else {
|
|
last = this.eMarks[line];
|
|
}
|
|
while (first < last && lineIndent < indent) {
|
|
const ch = this.src.charCodeAt(first);
|
|
if (isSpace(ch)) {
|
|
if (ch === 9) {
|
|
lineIndent += 4 - (lineIndent + this.bsCount[line]) % 4;
|
|
} else {
|
|
lineIndent++;
|
|
}
|
|
} else if (first - lineStart < this.tShift[line]) {
|
|
// patched tShift masked characters to look like spaces (blockquotes, list markers)
|
|
lineIndent++;
|
|
} else {
|
|
break;
|
|
}
|
|
first++;
|
|
}
|
|
if (lineIndent > indent) {
|
|
// partially expanding tabs in code blocks, e.g '\t\tfoobar'
|
|
// with indent=2 becomes ' \tfoobar'
|
|
queue[i] = new Array(lineIndent - indent + 1).join(" ") + this.src.slice(first, last);
|
|
} else {
|
|
queue[i] = this.src.slice(first, last);
|
|
}
|
|
}
|
|
return queue.join("");
|
|
};
|
|
// re-export Token class to use in block rules
|
|
StateBlock.prototype.Token = Token;
|
|
// GFM table, https://github.github.com/gfm/#tables-extension-
|
|
function getLine(state, line) {
|
|
const pos = state.bMarks[line] + state.tShift[line];
|
|
const max = state.eMarks[line];
|
|
return state.src.slice(pos, max);
|
|
}
|
|
function escapedSplit(str) {
|
|
const result = [];
|
|
const max = str.length;
|
|
let pos = 0;
|
|
let ch = str.charCodeAt(pos);
|
|
let isEscaped = false;
|
|
let lastPos = 0;
|
|
let current = "";
|
|
while (pos < max) {
|
|
if (ch === 124 /* | */) {
|
|
if (!isEscaped) {
|
|
// pipe separating cells, '|'
|
|
result.push(current + str.substring(lastPos, pos));
|
|
current = "";
|
|
lastPos = pos + 1;
|
|
} else {
|
|
// escaped pipe, '\|'
|
|
current += str.substring(lastPos, pos - 1);
|
|
lastPos = pos;
|
|
}
|
|
}
|
|
isEscaped = ch === 92 /* \ */;
|
|
pos++;
|
|
ch = str.charCodeAt(pos);
|
|
}
|
|
result.push(current + str.substring(lastPos));
|
|
return result;
|
|
}
|
|
function table(state, startLine, endLine, silent) {
|
|
// should have at least two lines
|
|
if (startLine + 2 > endLine) {
|
|
return false;
|
|
}
|
|
let nextLine = startLine + 1;
|
|
if (state.sCount[nextLine] < state.blkIndent) {
|
|
return false;
|
|
}
|
|
// if it's indented more than 3 spaces, it should be a code block
|
|
if (state.sCount[nextLine] - state.blkIndent >= 4) {
|
|
return false;
|
|
}
|
|
// first character of the second line should be '|', '-', ':',
|
|
// and no other characters are allowed but spaces;
|
|
// basically, this is the equivalent of /^[-:|][-:|\s]*$/ regexp
|
|
let pos = state.bMarks[nextLine] + state.tShift[nextLine];
|
|
if (pos >= state.eMarks[nextLine]) {
|
|
return false;
|
|
}
|
|
const firstCh = state.src.charCodeAt(pos++);
|
|
if (firstCh !== 124 /* | */ && firstCh !== 45 /* - */ && firstCh !== 58 /* : */) {
|
|
return false;
|
|
}
|
|
if (pos >= state.eMarks[nextLine]) {
|
|
return false;
|
|
}
|
|
const secondCh = state.src.charCodeAt(pos++);
|
|
if (secondCh !== 124 /* | */ && secondCh !== 45 /* - */ && secondCh !== 58 /* : */ && !isSpace(secondCh)) {
|
|
return false;
|
|
}
|
|
// if first character is '-', then second character must not be a space
|
|
// (due to parsing ambiguity with list)
|
|
if (firstCh === 45 /* - */ && isSpace(secondCh)) {
|
|
return false;
|
|
}
|
|
while (pos < state.eMarks[nextLine]) {
|
|
const ch = state.src.charCodeAt(pos);
|
|
if (ch !== 124 /* | */ && ch !== 45 /* - */ && ch !== 58 /* : */ && !isSpace(ch)) {
|
|
return false;
|
|
}
|
|
pos++;
|
|
}
|
|
let lineText = getLine(state, startLine + 1);
|
|
let columns = lineText.split("|");
|
|
const aligns = [];
|
|
for (let i = 0; i < columns.length; i++) {
|
|
const t = columns[i].trim();
|
|
if (!t) {
|
|
// allow empty columns before and after table, but not in between columns;
|
|
// e.g. allow ` |---| `, disallow ` ---||--- `
|
|
if (i === 0 || i === columns.length - 1) {
|
|
continue;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
if (!/^:?-+:?$/.test(t)) {
|
|
return false;
|
|
}
|
|
if (t.charCodeAt(t.length - 1) === 58 /* : */) {
|
|
aligns.push(t.charCodeAt(0) === 58 /* : */ ? "center" : "right");
|
|
} else if (t.charCodeAt(0) === 58 /* : */) {
|
|
aligns.push("left");
|
|
} else {
|
|
aligns.push("");
|
|
}
|
|
}
|
|
lineText = getLine(state, startLine).trim();
|
|
if (lineText.indexOf("|") === -1) {
|
|
return false;
|
|
}
|
|
if (state.sCount[startLine] - state.blkIndent >= 4) {
|
|
return false;
|
|
}
|
|
columns = escapedSplit(lineText);
|
|
if (columns.length && columns[0] === "") columns.shift();
|
|
if (columns.length && columns[columns.length - 1] === "") columns.pop();
|
|
// header row will define an amount of columns in the entire table,
|
|
// and align row should be exactly the same (the rest of the rows can differ)
|
|
const columnCount = columns.length;
|
|
if (columnCount === 0 || columnCount !== aligns.length) {
|
|
return false;
|
|
}
|
|
if (silent) {
|
|
return true;
|
|
}
|
|
const oldParentType = state.parentType;
|
|
state.parentType = "table";
|
|
// use 'blockquote' lists for termination because it's
|
|
// the most similar to tables
|
|
const terminatorRules = state.md.block.ruler.getRules("blockquote");
|
|
const token_to = state.push("table_open", "table", 1);
|
|
const tableLines = [ startLine, 0 ];
|
|
token_to.map = tableLines;
|
|
const token_tho = state.push("thead_open", "thead", 1);
|
|
token_tho.map = [ startLine, startLine + 1 ];
|
|
const token_htro = state.push("tr_open", "tr", 1);
|
|
token_htro.map = [ startLine, startLine + 1 ];
|
|
for (let i = 0; i < columns.length; i++) {
|
|
const token_ho = state.push("th_open", "th", 1);
|
|
if (aligns[i]) {
|
|
token_ho.attrs = [ [ "style", "text-align:" + aligns[i] ] ];
|
|
}
|
|
const token_il = state.push("inline", "", 0);
|
|
token_il.content = columns[i].trim();
|
|
token_il.children = [];
|
|
state.push("th_close", "th", -1);
|
|
}
|
|
state.push("tr_close", "tr", -1);
|
|
state.push("thead_close", "thead", -1);
|
|
let tbodyLines;
|
|
for (nextLine = startLine + 2; nextLine < endLine; nextLine++) {
|
|
if (state.sCount[nextLine] < state.blkIndent) {
|
|
break;
|
|
}
|
|
let terminate = false;
|
|
for (let i = 0, l = terminatorRules.length; i < l; i++) {
|
|
if (terminatorRules[i](state, nextLine, endLine, true)) {
|
|
terminate = true;
|
|
break;
|
|
}
|
|
}
|
|
if (terminate) {
|
|
break;
|
|
}
|
|
lineText = getLine(state, nextLine).trim();
|
|
if (!lineText) {
|
|
break;
|
|
}
|
|
if (state.sCount[nextLine] - state.blkIndent >= 4) {
|
|
break;
|
|
}
|
|
columns = escapedSplit(lineText);
|
|
if (columns.length && columns[0] === "") columns.shift();
|
|
if (columns.length && columns[columns.length - 1] === "") columns.pop();
|
|
if (nextLine === startLine + 2) {
|
|
const token_tbo = state.push("tbody_open", "tbody", 1);
|
|
token_tbo.map = tbodyLines = [ startLine + 2, 0 ];
|
|
}
|
|
const token_tro = state.push("tr_open", "tr", 1);
|
|
token_tro.map = [ nextLine, nextLine + 1 ];
|
|
for (let i = 0; i < columnCount; i++) {
|
|
const token_tdo = state.push("td_open", "td", 1);
|
|
if (aligns[i]) {
|
|
token_tdo.attrs = [ [ "style", "text-align:" + aligns[i] ] ];
|
|
}
|
|
const token_il = state.push("inline", "", 0);
|
|
token_il.content = columns[i] ? columns[i].trim() : "";
|
|
token_il.children = [];
|
|
state.push("td_close", "td", -1);
|
|
}
|
|
state.push("tr_close", "tr", -1);
|
|
}
|
|
if (tbodyLines) {
|
|
state.push("tbody_close", "tbody", -1);
|
|
tbodyLines[1] = nextLine;
|
|
}
|
|
state.push("table_close", "table", -1);
|
|
tableLines[1] = nextLine;
|
|
state.parentType = oldParentType;
|
|
state.line = nextLine;
|
|
return true;
|
|
}
|
|
// Code block (4 spaces padded)
|
|
function code(state, startLine, endLine /*, silent */) {
|
|
if (state.sCount[startLine] - state.blkIndent < 4) {
|
|
return false;
|
|
}
|
|
let nextLine = startLine + 1;
|
|
let last = nextLine;
|
|
while (nextLine < endLine) {
|
|
if (state.isEmpty(nextLine)) {
|
|
nextLine++;
|
|
continue;
|
|
}
|
|
if (state.sCount[nextLine] - state.blkIndent >= 4) {
|
|
nextLine++;
|
|
last = nextLine;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
state.line = last;
|
|
const token = state.push("code_block", "code", 0);
|
|
token.content = state.getLines(startLine, last, 4 + state.blkIndent, false) + "\n";
|
|
token.map = [ startLine, state.line ];
|
|
return true;
|
|
}
|
|
// fences (``` lang, ~~~ lang)
|
|
function fence(state, startLine, endLine, silent) {
|
|
let pos = state.bMarks[startLine] + state.tShift[startLine];
|
|
let max = state.eMarks[startLine];
|
|
// if it's indented more than 3 spaces, it should be a code block
|
|
if (state.sCount[startLine] - state.blkIndent >= 4) {
|
|
return false;
|
|
}
|
|
if (pos + 3 > max) {
|
|
return false;
|
|
}
|
|
const marker = state.src.charCodeAt(pos);
|
|
if (marker !== 126 /* ~ */ && marker !== 96 /* ` */) {
|
|
return false;
|
|
}
|
|
// scan marker length
|
|
let mem = pos;
|
|
pos = state.skipChars(pos, marker);
|
|
let len = pos - mem;
|
|
if (len < 3) {
|
|
return false;
|
|
}
|
|
const markup = state.src.slice(mem, pos);
|
|
const params = state.src.slice(pos, max);
|
|
if (marker === 96 /* ` */) {
|
|
if (params.indexOf(String.fromCharCode(marker)) >= 0) {
|
|
return false;
|
|
}
|
|
}
|
|
// Since start is found, we can report success here in validation mode
|
|
if (silent) {
|
|
return true;
|
|
}
|
|
// search end of block
|
|
let nextLine = startLine;
|
|
let haveEndMarker = false;
|
|
for (;;) {
|
|
nextLine++;
|
|
if (nextLine >= endLine) {
|
|
// unclosed block should be autoclosed by end of document.
|
|
// also block seems to be autoclosed by end of parent
|
|
break;
|
|
}
|
|
pos = mem = state.bMarks[nextLine] + state.tShift[nextLine];
|
|
max = state.eMarks[nextLine];
|
|
if (pos < max && state.sCount[nextLine] < state.blkIndent) {
|
|
// non-empty line with negative indent should stop the list:
|
|
// - ```
|
|
// test
|
|
break;
|
|
}
|
|
if (state.src.charCodeAt(pos) !== marker) {
|
|
continue;
|
|
}
|
|
if (state.sCount[nextLine] - state.blkIndent >= 4) {
|
|
// closing fence should be indented less than 4 spaces
|
|
continue;
|
|
}
|
|
pos = state.skipChars(pos, marker);
|
|
// closing code fence must be at least as long as the opening one
|
|
if (pos - mem < len) {
|
|
continue;
|
|
}
|
|
// make sure tail has spaces only
|
|
pos = state.skipSpaces(pos);
|
|
if (pos < max) {
|
|
continue;
|
|
}
|
|
haveEndMarker = true;
|
|
// found!
|
|
break;
|
|
}
|
|
// If a fence has heading spaces, they should be removed from its inner block
|
|
len = state.sCount[startLine];
|
|
state.line = nextLine + (haveEndMarker ? 1 : 0);
|
|
const token = state.push("fence", "code", 0);
|
|
token.info = params;
|
|
token.content = state.getLines(startLine + 1, nextLine, len, true);
|
|
token.markup = markup;
|
|
token.map = [ startLine, state.line ];
|
|
return true;
|
|
}
|
|
// Block quotes
|
|
function blockquote(state, startLine, endLine, silent) {
|
|
let pos = state.bMarks[startLine] + state.tShift[startLine];
|
|
let max = state.eMarks[startLine];
|
|
const oldLineMax = state.lineMax;
|
|
// if it's indented more than 3 spaces, it should be a code block
|
|
if (state.sCount[startLine] - state.blkIndent >= 4) {
|
|
return false;
|
|
}
|
|
// check the block quote marker
|
|
if (state.src.charCodeAt(pos) !== 62 /* > */) {
|
|
return false;
|
|
}
|
|
// we know that it's going to be a valid blockquote,
|
|
// so no point trying to find the end of it in silent mode
|
|
if (silent) {
|
|
return true;
|
|
}
|
|
const oldBMarks = [];
|
|
const oldBSCount = [];
|
|
const oldSCount = [];
|
|
const oldTShift = [];
|
|
const terminatorRules = state.md.block.ruler.getRules("blockquote");
|
|
const oldParentType = state.parentType;
|
|
state.parentType = "blockquote";
|
|
let lastLineEmpty = false;
|
|
let nextLine;
|
|
// Search the end of the block
|
|
|
|
// Block ends with either:
|
|
// 1. an empty line outside:
|
|
// ```
|
|
// > test
|
|
|
|
// ```
|
|
// 2. an empty line inside:
|
|
// ```
|
|
// >
|
|
// test
|
|
// ```
|
|
// 3. another tag:
|
|
// ```
|
|
// > test
|
|
// - - -
|
|
// ```
|
|
for (nextLine = startLine; nextLine < endLine; nextLine++) {
|
|
// check if it's outdented, i.e. it's inside list item and indented
|
|
// less than said list item:
|
|
// ```
|
|
// 1. anything
|
|
// > current blockquote
|
|
// 2. checking this line
|
|
// ```
|
|
const isOutdented = state.sCount[nextLine] < state.blkIndent;
|
|
pos = state.bMarks[nextLine] + state.tShift[nextLine];
|
|
max = state.eMarks[nextLine];
|
|
if (pos >= max) {
|
|
// Case 1: line is not inside the blockquote, and this line is empty.
|
|
break;
|
|
}
|
|
if (state.src.charCodeAt(pos++) === 62 /* > */ && !isOutdented) {
|
|
// This line is inside the blockquote.
|
|
// set offset past spaces and ">"
|
|
let initial = state.sCount[nextLine] + 1;
|
|
let spaceAfterMarker;
|
|
let adjustTab;
|
|
// skip one optional space after '>'
|
|
if (state.src.charCodeAt(pos) === 32 /* space */) {
|
|
// ' > test '
|
|
// ^ -- position start of line here:
|
|
pos++;
|
|
initial++;
|
|
adjustTab = false;
|
|
spaceAfterMarker = true;
|
|
} else if (state.src.charCodeAt(pos) === 9 /* tab */) {
|
|
spaceAfterMarker = true;
|
|
if ((state.bsCount[nextLine] + initial) % 4 === 3) {
|
|
// ' >\t test '
|
|
// ^ -- position start of line here (tab has width===1)
|
|
pos++;
|
|
initial++;
|
|
adjustTab = false;
|
|
} else {
|
|
// ' >\t test '
|
|
// ^ -- position start of line here + shift bsCount slightly
|
|
// to make extra space appear
|
|
adjustTab = true;
|
|
}
|
|
} else {
|
|
spaceAfterMarker = false;
|
|
}
|
|
let offset = initial;
|
|
oldBMarks.push(state.bMarks[nextLine]);
|
|
state.bMarks[nextLine] = pos;
|
|
while (pos < max) {
|
|
const ch = state.src.charCodeAt(pos);
|
|
if (isSpace(ch)) {
|
|
if (ch === 9) {
|
|
offset += 4 - (offset + state.bsCount[nextLine] + (adjustTab ? 1 : 0)) % 4;
|
|
} else {
|
|
offset++;
|
|
}
|
|
} else {
|
|
break;
|
|
}
|
|
pos++;
|
|
}
|
|
lastLineEmpty = pos >= max;
|
|
oldBSCount.push(state.bsCount[nextLine]);
|
|
state.bsCount[nextLine] = state.sCount[nextLine] + 1 + (spaceAfterMarker ? 1 : 0);
|
|
oldSCount.push(state.sCount[nextLine]);
|
|
state.sCount[nextLine] = offset - initial;
|
|
oldTShift.push(state.tShift[nextLine]);
|
|
state.tShift[nextLine] = pos - state.bMarks[nextLine];
|
|
continue;
|
|
}
|
|
// Case 2: line is not inside the blockquote, and the last line was empty.
|
|
if (lastLineEmpty) {
|
|
break;
|
|
}
|
|
// Case 3: another tag found.
|
|
let terminate = false;
|
|
for (let i = 0, l = terminatorRules.length; i < l; i++) {
|
|
if (terminatorRules[i](state, nextLine, endLine, true)) {
|
|
terminate = true;
|
|
break;
|
|
}
|
|
}
|
|
if (terminate) {
|
|
// Quirk to enforce "hard termination mode" for paragraphs;
|
|
// normally if you call `tokenize(state, startLine, nextLine)`,
|
|
// paragraphs will look below nextLine for paragraph continuation,
|
|
// but if blockquote is terminated by another tag, they shouldn't
|
|
state.lineMax = nextLine;
|
|
if (state.blkIndent !== 0) {
|
|
// state.blkIndent was non-zero, we now set it to zero,
|
|
// so we need to re-calculate all offsets to appear as
|
|
// if indent wasn't changed
|
|
oldBMarks.push(state.bMarks[nextLine]);
|
|
oldBSCount.push(state.bsCount[nextLine]);
|
|
oldTShift.push(state.tShift[nextLine]);
|
|
oldSCount.push(state.sCount[nextLine]);
|
|
state.sCount[nextLine] -= state.blkIndent;
|
|
}
|
|
break;
|
|
}
|
|
oldBMarks.push(state.bMarks[nextLine]);
|
|
oldBSCount.push(state.bsCount[nextLine]);
|
|
oldTShift.push(state.tShift[nextLine]);
|
|
oldSCount.push(state.sCount[nextLine]);
|
|
// A negative indentation means that this is a paragraph continuation
|
|
|
|
state.sCount[nextLine] = -1;
|
|
}
|
|
const oldIndent = state.blkIndent;
|
|
state.blkIndent = 0;
|
|
const token_o = state.push("blockquote_open", "blockquote", 1);
|
|
token_o.markup = ">";
|
|
const lines = [ startLine, 0 ];
|
|
token_o.map = lines;
|
|
state.md.block.tokenize(state, startLine, nextLine);
|
|
const token_c = state.push("blockquote_close", "blockquote", -1);
|
|
token_c.markup = ">";
|
|
state.lineMax = oldLineMax;
|
|
state.parentType = oldParentType;
|
|
lines[1] = state.line;
|
|
// Restore original tShift; this might not be necessary since the parser
|
|
// has already been here, but just to make sure we can do that.
|
|
for (let i = 0; i < oldTShift.length; i++) {
|
|
state.bMarks[i + startLine] = oldBMarks[i];
|
|
state.tShift[i + startLine] = oldTShift[i];
|
|
state.sCount[i + startLine] = oldSCount[i];
|
|
state.bsCount[i + startLine] = oldBSCount[i];
|
|
}
|
|
state.blkIndent = oldIndent;
|
|
return true;
|
|
}
|
|
// Horizontal rule
|
|
function hr(state, startLine, endLine, silent) {
|
|
const max = state.eMarks[startLine];
|
|
// if it's indented more than 3 spaces, it should be a code block
|
|
if (state.sCount[startLine] - state.blkIndent >= 4) {
|
|
return false;
|
|
}
|
|
let pos = state.bMarks[startLine] + state.tShift[startLine];
|
|
const marker = state.src.charCodeAt(pos++);
|
|
// Check hr marker
|
|
if (marker !== 42 /* * */ && marker !== 45 /* - */ && marker !== 95 /* _ */) {
|
|
return false;
|
|
}
|
|
// markers can be mixed with spaces, but there should be at least 3 of them
|
|
let cnt = 1;
|
|
while (pos < max) {
|
|
const ch = state.src.charCodeAt(pos++);
|
|
if (ch !== marker && !isSpace(ch)) {
|
|
return false;
|
|
}
|
|
if (ch === marker) {
|
|
cnt++;
|
|
}
|
|
}
|
|
if (cnt < 3) {
|
|
return false;
|
|
}
|
|
if (silent) {
|
|
return true;
|
|
}
|
|
state.line = startLine + 1;
|
|
const token = state.push("hr", "hr", 0);
|
|
token.map = [ startLine, state.line ];
|
|
token.markup = Array(cnt + 1).join(String.fromCharCode(marker));
|
|
return true;
|
|
}
|
|
// Lists
|
|
// Search `[-+*][\n ]`, returns next pos after marker on success
|
|
// or -1 on fail.
|
|
function skipBulletListMarker(state, startLine) {
|
|
const max = state.eMarks[startLine];
|
|
let pos = state.bMarks[startLine] + state.tShift[startLine];
|
|
const marker = state.src.charCodeAt(pos++);
|
|
// Check bullet
|
|
if (marker !== 42 /* * */ && marker !== 45 /* - */ && marker !== 43 /* + */) {
|
|
return -1;
|
|
}
|
|
if (pos < max) {
|
|
const ch = state.src.charCodeAt(pos);
|
|
if (!isSpace(ch)) {
|
|
// " -test " - is not a list item
|
|
return -1;
|
|
}
|
|
}
|
|
return pos;
|
|
}
|
|
// Search `\d+[.)][\n ]`, returns next pos after marker on success
|
|
// or -1 on fail.
|
|
function skipOrderedListMarker(state, startLine) {
|
|
const start = state.bMarks[startLine] + state.tShift[startLine];
|
|
const max = state.eMarks[startLine];
|
|
let pos = start;
|
|
// List marker should have at least 2 chars (digit + dot)
|
|
if (pos + 1 >= max) {
|
|
return -1;
|
|
}
|
|
let ch = state.src.charCodeAt(pos++);
|
|
if (ch < 48 /* 0 */ || ch > 57 /* 9 */) {
|
|
return -1;
|
|
}
|
|
for (;;) {
|
|
// EOL -> fail
|
|
if (pos >= max) {
|
|
return -1;
|
|
}
|
|
ch = state.src.charCodeAt(pos++);
|
|
if (ch >= 48 /* 0 */ && ch <= 57 /* 9 */) {
|
|
// List marker should have no more than 9 digits
|
|
// (prevents integer overflow in browsers)
|
|
if (pos - start >= 10) {
|
|
return -1;
|
|
}
|
|
continue;
|
|
}
|
|
// found valid marker
|
|
if (ch === 41 /* ) */ || ch === 46 /* . */) {
|
|
break;
|
|
}
|
|
return -1;
|
|
}
|
|
if (pos < max) {
|
|
ch = state.src.charCodeAt(pos);
|
|
if (!isSpace(ch)) {
|
|
// " 1.test " - is not a list item
|
|
return -1;
|
|
}
|
|
}
|
|
return pos;
|
|
}
|
|
function markTightParagraphs(state, idx) {
|
|
const level = state.level + 2;
|
|
for (let i = idx + 2, l = state.tokens.length - 2; i < l; i++) {
|
|
if (state.tokens[i].level === level && state.tokens[i].type === "paragraph_open") {
|
|
state.tokens[i + 2].hidden = true;
|
|
state.tokens[i].hidden = true;
|
|
i += 2;
|
|
}
|
|
}
|
|
}
|
|
function list(state, startLine, endLine, silent) {
|
|
let max, pos, start, token;
|
|
let nextLine = startLine;
|
|
let tight = true;
|
|
// if it's indented more than 3 spaces, it should be a code block
|
|
if (state.sCount[nextLine] - state.blkIndent >= 4) {
|
|
return false;
|
|
}
|
|
// Special case:
|
|
// - item 1
|
|
// - item 2
|
|
// - item 3
|
|
// - item 4
|
|
// - this one is a paragraph continuation
|
|
if (state.listIndent >= 0 && state.sCount[nextLine] - state.listIndent >= 4 && state.sCount[nextLine] < state.blkIndent) {
|
|
return false;
|
|
}
|
|
let isTerminatingParagraph = false;
|
|
// limit conditions when list can interrupt
|
|
// a paragraph (validation mode only)
|
|
if (silent && state.parentType === "paragraph") {
|
|
// Next list item should still terminate previous list item;
|
|
// This code can fail if plugins use blkIndent as well as lists,
|
|
// but I hope the spec gets fixed long before that happens.
|
|
if (state.sCount[nextLine] >= state.blkIndent) {
|
|
isTerminatingParagraph = true;
|
|
}
|
|
}
|
|
// Detect list type and position after marker
|
|
let isOrdered;
|
|
let markerValue;
|
|
let posAfterMarker;
|
|
if ((posAfterMarker = skipOrderedListMarker(state, nextLine)) >= 0) {
|
|
isOrdered = true;
|
|
start = state.bMarks[nextLine] + state.tShift[nextLine];
|
|
markerValue = Number(state.src.slice(start, posAfterMarker - 1));
|
|
// If we're starting a new ordered list right after
|
|
// a paragraph, it should start with 1.
|
|
if (isTerminatingParagraph && markerValue !== 1) return false;
|
|
} else if ((posAfterMarker = skipBulletListMarker(state, nextLine)) >= 0) {
|
|
isOrdered = false;
|
|
} else {
|
|
return false;
|
|
}
|
|
// If we're starting a new unordered list right after
|
|
// a paragraph, first line should not be empty.
|
|
if (isTerminatingParagraph) {
|
|
if (state.skipSpaces(posAfterMarker) >= state.eMarks[nextLine]) return false;
|
|
}
|
|
// For validation mode we can terminate immediately
|
|
if (silent) {
|
|
return true;
|
|
}
|
|
// We should terminate list on style change. Remember first one to compare.
|
|
const markerCharCode = state.src.charCodeAt(posAfterMarker - 1);
|
|
// Start list
|
|
const listTokIdx = state.tokens.length;
|
|
if (isOrdered) {
|
|
token = state.push("ordered_list_open", "ol", 1);
|
|
if (markerValue !== 1) {
|
|
token.attrs = [ [ "start", markerValue ] ];
|
|
}
|
|
} else {
|
|
token = state.push("bullet_list_open", "ul", 1);
|
|
}
|
|
const listLines = [ nextLine, 0 ];
|
|
token.map = listLines;
|
|
token.markup = String.fromCharCode(markerCharCode);
|
|
|
|
// Iterate list items
|
|
|
|
let prevEmptyEnd = false;
|
|
const terminatorRules = state.md.block.ruler.getRules("list");
|
|
const oldParentType = state.parentType;
|
|
state.parentType = "list";
|
|
while (nextLine < endLine) {
|
|
pos = posAfterMarker;
|
|
max = state.eMarks[nextLine];
|
|
const initial = state.sCount[nextLine] + posAfterMarker - (state.bMarks[nextLine] + state.tShift[nextLine]);
|
|
let offset = initial;
|
|
while (pos < max) {
|
|
const ch = state.src.charCodeAt(pos);
|
|
if (ch === 9) {
|
|
offset += 4 - (offset + state.bsCount[nextLine]) % 4;
|
|
} else if (ch === 32) {
|
|
offset++;
|
|
} else {
|
|
break;
|
|
}
|
|
pos++;
|
|
}
|
|
const contentStart = pos;
|
|
let indentAfterMarker;
|
|
if (contentStart >= max) {
|
|
// trimming space in "- \n 3" case, indent is 1 here
|
|
indentAfterMarker = 1;
|
|
} else {
|
|
indentAfterMarker = offset - initial;
|
|
}
|
|
// If we have more than 4 spaces, the indent is 1
|
|
// (the rest is just indented code block)
|
|
if (indentAfterMarker > 4) {
|
|
indentAfterMarker = 1;
|
|
}
|
|
// " - test"
|
|
// ^^^^^ - calculating total length of this thing
|
|
const indent = initial + indentAfterMarker;
|
|
// Run subparser & write tokens
|
|
token = state.push("list_item_open", "li", 1);
|
|
token.markup = String.fromCharCode(markerCharCode);
|
|
const itemLines = [ nextLine, 0 ];
|
|
token.map = itemLines;
|
|
if (isOrdered) {
|
|
token.info = state.src.slice(start, posAfterMarker - 1);
|
|
}
|
|
// change current state, then restore it after parser subcall
|
|
const oldTight = state.tight;
|
|
const oldTShift = state.tShift[nextLine];
|
|
const oldSCount = state.sCount[nextLine];
|
|
// - example list
|
|
// ^ listIndent position will be here
|
|
// ^ blkIndent position will be here
|
|
|
|
const oldListIndent = state.listIndent;
|
|
state.listIndent = state.blkIndent;
|
|
state.blkIndent = indent;
|
|
state.tight = true;
|
|
state.tShift[nextLine] = contentStart - state.bMarks[nextLine];
|
|
state.sCount[nextLine] = offset;
|
|
if (contentStart >= max && state.isEmpty(nextLine + 1)) {
|
|
// workaround for this case
|
|
// (list item is empty, list terminates before "foo"):
|
|
// ~~~~~~~~
|
|
// -
|
|
// foo
|
|
// ~~~~~~~~
|
|
state.line = Math.min(state.line + 2, endLine);
|
|
} else {
|
|
state.md.block.tokenize(state, nextLine, endLine, true);
|
|
}
|
|
// If any of list item is tight, mark list as tight
|
|
if (!state.tight || prevEmptyEnd) {
|
|
tight = false;
|
|
}
|
|
// Item become loose if finish with empty line,
|
|
// but we should filter last element, because it means list finish
|
|
prevEmptyEnd = state.line - nextLine > 1 && state.isEmpty(state.line - 1);
|
|
state.blkIndent = state.listIndent;
|
|
state.listIndent = oldListIndent;
|
|
state.tShift[nextLine] = oldTShift;
|
|
state.sCount[nextLine] = oldSCount;
|
|
state.tight = oldTight;
|
|
token = state.push("list_item_close", "li", -1);
|
|
token.markup = String.fromCharCode(markerCharCode);
|
|
nextLine = state.line;
|
|
itemLines[1] = nextLine;
|
|
if (nextLine >= endLine) {
|
|
break;
|
|
}
|
|
|
|
// Try to check if list is terminated or continued.
|
|
|
|
if (state.sCount[nextLine] < state.blkIndent) {
|
|
break;
|
|
}
|
|
// if it's indented more than 3 spaces, it should be a code block
|
|
if (state.sCount[nextLine] - state.blkIndent >= 4) {
|
|
break;
|
|
}
|
|
// fail if terminating block found
|
|
let terminate = false;
|
|
for (let i = 0, l = terminatorRules.length; i < l; i++) {
|
|
if (terminatorRules[i](state, nextLine, endLine, true)) {
|
|
terminate = true;
|
|
break;
|
|
}
|
|
}
|
|
if (terminate) {
|
|
break;
|
|
}
|
|
// fail if list has another type
|
|
if (isOrdered) {
|
|
posAfterMarker = skipOrderedListMarker(state, nextLine);
|
|
if (posAfterMarker < 0) {
|
|
break;
|
|
}
|
|
start = state.bMarks[nextLine] + state.tShift[nextLine];
|
|
} else {
|
|
posAfterMarker = skipBulletListMarker(state, nextLine);
|
|
if (posAfterMarker < 0) {
|
|
break;
|
|
}
|
|
}
|
|
if (markerCharCode !== state.src.charCodeAt(posAfterMarker - 1)) {
|
|
break;
|
|
}
|
|
}
|
|
// Finalize list
|
|
if (isOrdered) {
|
|
token = state.push("ordered_list_close", "ol", -1);
|
|
} else {
|
|
token = state.push("bullet_list_close", "ul", -1);
|
|
}
|
|
token.markup = String.fromCharCode(markerCharCode);
|
|
listLines[1] = nextLine;
|
|
state.line = nextLine;
|
|
state.parentType = oldParentType;
|
|
// mark paragraphs tight if needed
|
|
if (tight) {
|
|
markTightParagraphs(state, listTokIdx);
|
|
}
|
|
return true;
|
|
}
|
|
function reference(state, startLine, _endLine, silent) {
|
|
let lines = 0;
|
|
let pos = state.bMarks[startLine] + state.tShift[startLine];
|
|
let max = state.eMarks[startLine];
|
|
let nextLine = startLine + 1;
|
|
// if it's indented more than 3 spaces, it should be a code block
|
|
if (state.sCount[startLine] - state.blkIndent >= 4) {
|
|
return false;
|
|
}
|
|
if (state.src.charCodeAt(pos) !== 91 /* [ */) {
|
|
return false;
|
|
}
|
|
// Simple check to quickly interrupt scan on [link](url) at the start of line.
|
|
// Can be useful on practice: https://github.com/markdown-it/markdown-it/issues/54
|
|
while (++pos < max) {
|
|
if (state.src.charCodeAt(pos) === 93 /* ] */ && state.src.charCodeAt(pos - 1) !== 92 /* \ */) {
|
|
if (pos + 1 === max) {
|
|
return false;
|
|
}
|
|
if (state.src.charCodeAt(pos + 1) !== 58 /* : */) {
|
|
return false;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
const endLine = state.lineMax;
|
|
// jump line-by-line until empty one or EOF
|
|
const terminatorRules = state.md.block.ruler.getRules("reference");
|
|
const oldParentType = state.parentType;
|
|
state.parentType = "reference";
|
|
for (;nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
|
|
// this would be a code block normally, but after paragraph
|
|
// it's considered a lazy continuation regardless of what's there
|
|
if (state.sCount[nextLine] - state.blkIndent > 3) {
|
|
continue;
|
|
}
|
|
// quirk for blockquotes, this line should already be checked by that rule
|
|
if (state.sCount[nextLine] < 0) {
|
|
continue;
|
|
}
|
|
// Some tags can terminate paragraph without empty line.
|
|
let terminate = false;
|
|
for (let i = 0, l = terminatorRules.length; i < l; i++) {
|
|
if (terminatorRules[i](state, nextLine, endLine, true)) {
|
|
terminate = true;
|
|
break;
|
|
}
|
|
}
|
|
if (terminate) {
|
|
break;
|
|
}
|
|
}
|
|
const str = state.getLines(startLine, nextLine, state.blkIndent, false).trim();
|
|
max = str.length;
|
|
let labelEnd = -1;
|
|
for (pos = 1; pos < max; pos++) {
|
|
const ch = str.charCodeAt(pos);
|
|
if (ch === 91 /* [ */) {
|
|
return false;
|
|
} else if (ch === 93 /* ] */) {
|
|
labelEnd = pos;
|
|
break;
|
|
} else if (ch === 10 /* \n */) {
|
|
lines++;
|
|
} else if (ch === 92 /* \ */) {
|
|
pos++;
|
|
if (pos < max && str.charCodeAt(pos) === 10) {
|
|
lines++;
|
|
}
|
|
}
|
|
}
|
|
if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 58 /* : */) {
|
|
return false;
|
|
}
|
|
// [label]: destination 'title'
|
|
// ^^^ skip optional whitespace here
|
|
for (pos = labelEnd + 2; pos < max; pos++) {
|
|
const ch = str.charCodeAt(pos);
|
|
if (ch === 10) {
|
|
lines++;
|
|
} else if (isSpace(ch)) ; else {
|
|
break;
|
|
}
|
|
}
|
|
// [label]: destination 'title'
|
|
// ^^^^^^^^^^^ parse this
|
|
const destRes = state.md.helpers.parseLinkDestination(str, pos, max);
|
|
if (!destRes.ok) {
|
|
return false;
|
|
}
|
|
const href = state.md.normalizeLink(destRes.str);
|
|
if (!state.md.validateLink(href)) {
|
|
return false;
|
|
}
|
|
pos = destRes.pos;
|
|
lines += destRes.lines;
|
|
// save cursor state, we could require to rollback later
|
|
const destEndPos = pos;
|
|
const destEndLineNo = lines;
|
|
// [label]: destination 'title'
|
|
// ^^^ skipping those spaces
|
|
const start = pos;
|
|
for (;pos < max; pos++) {
|
|
const ch = str.charCodeAt(pos);
|
|
if (ch === 10) {
|
|
lines++;
|
|
} else if (isSpace(ch)) ; else {
|
|
break;
|
|
}
|
|
}
|
|
// [label]: destination 'title'
|
|
// ^^^^^^^ parse this
|
|
const titleRes = state.md.helpers.parseLinkTitle(str, pos, max);
|
|
let title;
|
|
if (pos < max && start !== pos && titleRes.ok) {
|
|
title = titleRes.str;
|
|
pos = titleRes.pos;
|
|
lines += titleRes.lines;
|
|
} else {
|
|
title = "";
|
|
pos = destEndPos;
|
|
lines = destEndLineNo;
|
|
}
|
|
// skip trailing spaces until the rest of the line
|
|
while (pos < max) {
|
|
const ch = str.charCodeAt(pos);
|
|
if (!isSpace(ch)) {
|
|
break;
|
|
}
|
|
pos++;
|
|
}
|
|
if (pos < max && str.charCodeAt(pos) !== 10) {
|
|
if (title) {
|
|
// garbage at the end of the line after title,
|
|
// but it could still be a valid reference if we roll back
|
|
title = "";
|
|
pos = destEndPos;
|
|
lines = destEndLineNo;
|
|
while (pos < max) {
|
|
const ch = str.charCodeAt(pos);
|
|
if (!isSpace(ch)) {
|
|
break;
|
|
}
|
|
pos++;
|
|
}
|
|
}
|
|
}
|
|
if (pos < max && str.charCodeAt(pos) !== 10) {
|
|
// garbage at the end of the line
|
|
return false;
|
|
}
|
|
const label = normalizeReference(str.slice(1, labelEnd));
|
|
if (!label) {
|
|
// CommonMark 0.20 disallows empty labels
|
|
return false;
|
|
}
|
|
// Reference can not terminate anything. This check is for safety only.
|
|
/* istanbul ignore if */ if (silent) {
|
|
return true;
|
|
}
|
|
if (typeof state.env.references === "undefined") {
|
|
state.env.references = {};
|
|
}
|
|
if (typeof state.env.references[label] === "undefined") {
|
|
state.env.references[label] = {
|
|
title: title,
|
|
href: href
|
|
};
|
|
}
|
|
state.parentType = oldParentType;
|
|
state.line = startLine + lines + 1;
|
|
return true;
|
|
}
|
|
// List of valid html blocks names, according to commonmark spec
|
|
// https://spec.commonmark.org/0.30/#html-blocks
|
|
var block_names = [ "address", "article", "aside", "base", "basefont", "blockquote", "body", "caption", "center", "col", "colgroup", "dd", "details", "dialog", "dir", "div", "dl", "dt", "fieldset", "figcaption", "figure", "footer", "form", "frame", "frameset", "h1", "h2", "h3", "h4", "h5", "h6", "head", "header", "hr", "html", "iframe", "legend", "li", "link", "main", "menu", "menuitem", "nav", "noframes", "ol", "optgroup", "option", "p", "param", "section", "source", "summary", "table", "tbody", "td", "tfoot", "th", "thead", "title", "tr", "track", "ul" ];
|
|
// Regexps to match html elements
|
|
const attr_name = "[a-zA-Z_:][a-zA-Z0-9:._-]*";
|
|
const unquoted = "[^\"'=<>`\\x00-\\x20]+";
|
|
const single_quoted = "'[^']*'";
|
|
const double_quoted = '"[^"]*"';
|
|
const attr_value = "(?:" + unquoted + "|" + single_quoted + "|" + double_quoted + ")";
|
|
const attribute = "(?:\\s+" + attr_name + "(?:\\s*=\\s*" + attr_value + ")?)";
|
|
const open_tag = "<[A-Za-z][A-Za-z0-9\\-]*" + attribute + "*\\s*\\/?>";
|
|
const close_tag = "<\\/[A-Za-z][A-Za-z0-9\\-]*\\s*>";
|
|
const comment = "\x3c!----\x3e|\x3c!--(?:-?[^>-])(?:-?[^-])*--\x3e";
|
|
const processing = "<[?][\\s\\S]*?[?]>";
|
|
const declaration = "<![A-Z]+\\s+[^>]*>";
|
|
const cdata = "<!\\[CDATA\\[[\\s\\S]*?\\]\\]>";
|
|
const HTML_TAG_RE = new RegExp("^(?:" + open_tag + "|" + close_tag + "|" + comment + "|" + processing + "|" + declaration + "|" + cdata + ")");
|
|
const HTML_OPEN_CLOSE_TAG_RE = new RegExp("^(?:" + open_tag + "|" + close_tag + ")");
|
|
// HTML block
|
|
// An array of opening and corresponding closing sequences for html tags,
|
|
// last argument defines whether it can terminate a paragraph or not
|
|
|
|
const HTML_SEQUENCES = [ [ /^<(script|pre|style|textarea)(?=(\s|>|$))/i, /<\/(script|pre|style|textarea)>/i, true ], [ /^<!--/, /-->/, true ], [ /^<\?/, /\?>/, true ], [ /^<![A-Z]/, />/, true ], [ /^<!\[CDATA\[/, /\]\]>/, true ], [ new RegExp("^</?(" + block_names.join("|") + ")(?=(\\s|/?>|$))", "i"), /^$/, true ], [ new RegExp(HTML_OPEN_CLOSE_TAG_RE.source + "\\s*$"), /^$/, false ] ];
|
|
function html_block(state, startLine, endLine, silent) {
|
|
let pos = state.bMarks[startLine] + state.tShift[startLine];
|
|
let max = state.eMarks[startLine];
|
|
// if it's indented more than 3 spaces, it should be a code block
|
|
if (state.sCount[startLine] - state.blkIndent >= 4) {
|
|
return false;
|
|
}
|
|
if (!state.md.options.html) {
|
|
return false;
|
|
}
|
|
if (state.src.charCodeAt(pos) !== 60 /* < */) {
|
|
return false;
|
|
}
|
|
let lineText = state.src.slice(pos, max);
|
|
let i = 0;
|
|
for (;i < HTML_SEQUENCES.length; i++) {
|
|
if (HTML_SEQUENCES[i][0].test(lineText)) {
|
|
break;
|
|
}
|
|
}
|
|
if (i === HTML_SEQUENCES.length) {
|
|
return false;
|
|
}
|
|
if (silent) {
|
|
// true if this sequence can be a terminator, false otherwise
|
|
return HTML_SEQUENCES[i][2];
|
|
}
|
|
let nextLine = startLine + 1;
|
|
// If we are here - we detected HTML block.
|
|
// Let's roll down till block end.
|
|
if (!HTML_SEQUENCES[i][1].test(lineText)) {
|
|
for (;nextLine < endLine; nextLine++) {
|
|
if (state.sCount[nextLine] < state.blkIndent) {
|
|
break;
|
|
}
|
|
pos = state.bMarks[nextLine] + state.tShift[nextLine];
|
|
max = state.eMarks[nextLine];
|
|
lineText = state.src.slice(pos, max);
|
|
if (HTML_SEQUENCES[i][1].test(lineText)) {
|
|
if (lineText.length !== 0) {
|
|
nextLine++;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
state.line = nextLine;
|
|
const token = state.push("html_block", "", 0);
|
|
token.map = [ startLine, nextLine ];
|
|
token.content = state.getLines(startLine, nextLine, state.blkIndent, true);
|
|
return true;
|
|
}
|
|
// heading (#, ##, ...)
|
|
function heading(state, startLine, endLine, silent) {
|
|
let pos = state.bMarks[startLine] + state.tShift[startLine];
|
|
let max = state.eMarks[startLine];
|
|
// if it's indented more than 3 spaces, it should be a code block
|
|
if (state.sCount[startLine] - state.blkIndent >= 4) {
|
|
return false;
|
|
}
|
|
let ch = state.src.charCodeAt(pos);
|
|
if (ch !== 35 /* # */ || pos >= max) {
|
|
return false;
|
|
}
|
|
// count heading level
|
|
let level = 1;
|
|
ch = state.src.charCodeAt(++pos);
|
|
while (ch === 35 /* # */ && pos < max && level <= 6) {
|
|
level++;
|
|
ch = state.src.charCodeAt(++pos);
|
|
}
|
|
if (level > 6 || pos < max && !isSpace(ch)) {
|
|
return false;
|
|
}
|
|
if (silent) {
|
|
return true;
|
|
}
|
|
// Let's cut tails like ' ### ' from the end of string
|
|
max = state.skipSpacesBack(max, pos);
|
|
const tmp = state.skipCharsBack(max, 35, pos);
|
|
// #
|
|
if (tmp > pos && isSpace(state.src.charCodeAt(tmp - 1))) {
|
|
max = tmp;
|
|
}
|
|
state.line = startLine + 1;
|
|
const token_o = state.push("heading_open", "h" + String(level), 1);
|
|
token_o.markup = "########".slice(0, level);
|
|
token_o.map = [ startLine, state.line ];
|
|
const token_i = state.push("inline", "", 0);
|
|
token_i.content = state.src.slice(pos, max).trim();
|
|
token_i.map = [ startLine, state.line ];
|
|
token_i.children = [];
|
|
const token_c = state.push("heading_close", "h" + String(level), -1);
|
|
token_c.markup = "########".slice(0, level);
|
|
return true;
|
|
}
|
|
// lheading (---, ===)
|
|
function lheading(state, startLine, endLine /*, silent */) {
|
|
const terminatorRules = state.md.block.ruler.getRules("paragraph");
|
|
// if it's indented more than 3 spaces, it should be a code block
|
|
if (state.sCount[startLine] - state.blkIndent >= 4) {
|
|
return false;
|
|
}
|
|
const oldParentType = state.parentType;
|
|
state.parentType = "paragraph";
|
|
// use paragraph to match terminatorRules
|
|
// jump line-by-line until empty one or EOF
|
|
let level = 0;
|
|
let marker;
|
|
let nextLine = startLine + 1;
|
|
for (;nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
|
|
// this would be a code block normally, but after paragraph
|
|
// it's considered a lazy continuation regardless of what's there
|
|
if (state.sCount[nextLine] - state.blkIndent > 3) {
|
|
continue;
|
|
}
|
|
|
|
// Check for underline in setext header
|
|
|
|
if (state.sCount[nextLine] >= state.blkIndent) {
|
|
let pos = state.bMarks[nextLine] + state.tShift[nextLine];
|
|
const max = state.eMarks[nextLine];
|
|
if (pos < max) {
|
|
marker = state.src.charCodeAt(pos);
|
|
if (marker === 45 /* - */ || marker === 61 /* = */) {
|
|
pos = state.skipChars(pos, marker);
|
|
pos = state.skipSpaces(pos);
|
|
if (pos >= max) {
|
|
level = marker === 61 /* = */ ? 1 : 2;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// quirk for blockquotes, this line should already be checked by that rule
|
|
if (state.sCount[nextLine] < 0) {
|
|
continue;
|
|
}
|
|
// Some tags can terminate paragraph without empty line.
|
|
let terminate = false;
|
|
for (let i = 0, l = terminatorRules.length; i < l; i++) {
|
|
if (terminatorRules[i](state, nextLine, endLine, true)) {
|
|
terminate = true;
|
|
break;
|
|
}
|
|
}
|
|
if (terminate) {
|
|
break;
|
|
}
|
|
}
|
|
if (!level) {
|
|
// Didn't find valid underline
|
|
return false;
|
|
}
|
|
const content = state.getLines(startLine, nextLine, state.blkIndent, false).trim();
|
|
state.line = nextLine + 1;
|
|
const token_o = state.push("heading_open", "h" + String(level), 1);
|
|
token_o.markup = String.fromCharCode(marker);
|
|
token_o.map = [ startLine, state.line ];
|
|
const token_i = state.push("inline", "", 0);
|
|
token_i.content = content;
|
|
token_i.map = [ startLine, state.line - 1 ];
|
|
token_i.children = [];
|
|
const token_c = state.push("heading_close", "h" + String(level), -1);
|
|
token_c.markup = String.fromCharCode(marker);
|
|
state.parentType = oldParentType;
|
|
return true;
|
|
}
|
|
// Paragraph
|
|
function paragraph(state, startLine, endLine) {
|
|
const terminatorRules = state.md.block.ruler.getRules("paragraph");
|
|
const oldParentType = state.parentType;
|
|
let nextLine = startLine + 1;
|
|
state.parentType = "paragraph";
|
|
// jump line-by-line until empty one or EOF
|
|
for (;nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
|
|
// this would be a code block normally, but after paragraph
|
|
// it's considered a lazy continuation regardless of what's there
|
|
if (state.sCount[nextLine] - state.blkIndent > 3) {
|
|
continue;
|
|
}
|
|
// quirk for blockquotes, this line should already be checked by that rule
|
|
if (state.sCount[nextLine] < 0) {
|
|
continue;
|
|
}
|
|
// Some tags can terminate paragraph without empty line.
|
|
let terminate = false;
|
|
for (let i = 0, l = terminatorRules.length; i < l; i++) {
|
|
if (terminatorRules[i](state, nextLine, endLine, true)) {
|
|
terminate = true;
|
|
break;
|
|
}
|
|
}
|
|
if (terminate) {
|
|
break;
|
|
}
|
|
}
|
|
const content = state.getLines(startLine, nextLine, state.blkIndent, false).trim();
|
|
state.line = nextLine;
|
|
const token_o = state.push("paragraph_open", "p", 1);
|
|
token_o.map = [ startLine, state.line ];
|
|
const token_i = state.push("inline", "", 0);
|
|
token_i.content = content;
|
|
token_i.map = [ startLine, state.line ];
|
|
token_i.children = [];
|
|
state.push("paragraph_close", "p", -1);
|
|
state.parentType = oldParentType;
|
|
return true;
|
|
}
|
|
/** internal
|
|
* class ParserBlock
|
|
*
|
|
* Block-level tokenizer.
|
|
**/ const _rules$1 = [
|
|
// First 2 params - rule name & source. Secondary array - list of rules,
|
|
// which can be terminated by this one.
|
|
[ "table", table, [ "paragraph", "reference" ] ], [ "code", code ], [ "fence", fence, [ "paragraph", "reference", "blockquote", "list" ] ], [ "blockquote", blockquote, [ "paragraph", "reference", "blockquote", "list" ] ], [ "hr", hr, [ "paragraph", "reference", "blockquote", "list" ] ], [ "list", list, [ "paragraph", "reference", "blockquote" ] ], [ "reference", reference ], [ "html_block", html_block, [ "paragraph", "reference", "blockquote" ] ], [ "heading", heading, [ "paragraph", "reference", "blockquote" ] ], [ "lheading", lheading ], [ "paragraph", paragraph ] ];
|
|
/**
|
|
* new ParserBlock()
|
|
**/ function ParserBlock() {
|
|
/**
|
|
* ParserBlock#ruler -> Ruler
|
|
*
|
|
* [[Ruler]] instance. Keep configuration of block rules.
|
|
**/
|
|
this.ruler = new Ruler;
|
|
for (let i = 0; i < _rules$1.length; i++) {
|
|
this.ruler.push(_rules$1[i][0], _rules$1[i][1], {
|
|
alt: (_rules$1[i][2] || []).slice()
|
|
});
|
|
}
|
|
}
|
|
// Generate tokens for input range
|
|
|
|
ParserBlock.prototype.tokenize = function(state, startLine, endLine) {
|
|
const rules = this.ruler.getRules("");
|
|
const len = rules.length;
|
|
const maxNesting = state.md.options.maxNesting;
|
|
let line = startLine;
|
|
let hasEmptyLines = false;
|
|
while (line < endLine) {
|
|
state.line = line = state.skipEmptyLines(line);
|
|
if (line >= endLine) {
|
|
break;
|
|
}
|
|
// Termination condition for nested calls.
|
|
// Nested calls currently used for blockquotes & lists
|
|
if (state.sCount[line] < state.blkIndent) {
|
|
break;
|
|
}
|
|
// If nesting level exceeded - skip tail to the end. That's not ordinary
|
|
// situation and we should not care about content.
|
|
if (state.level >= maxNesting) {
|
|
state.line = endLine;
|
|
break;
|
|
}
|
|
// Try all possible rules.
|
|
// On success, rule should:
|
|
|
|
// - update `state.line`
|
|
// - update `state.tokens`
|
|
// - return true
|
|
const prevLine = state.line;
|
|
let ok = false;
|
|
for (let i = 0; i < len; i++) {
|
|
ok = rules[i](state, line, endLine, false);
|
|
if (ok) {
|
|
if (prevLine >= state.line) {
|
|
throw new Error("block rule didn't increment state.line");
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
// this can only happen if user disables paragraph rule
|
|
if (!ok) throw new Error("none of the block rules matched");
|
|
// set state.tight if we had an empty line before current tag
|
|
// i.e. latest empty line should not count
|
|
state.tight = !hasEmptyLines;
|
|
// paragraph might "eat" one newline after it in nested lists
|
|
if (state.isEmpty(state.line - 1)) {
|
|
hasEmptyLines = true;
|
|
}
|
|
line = state.line;
|
|
if (line < endLine && state.isEmpty(line)) {
|
|
hasEmptyLines = true;
|
|
line++;
|
|
state.line = line;
|
|
}
|
|
}
|
|
};
|
|
/**
|
|
* ParserBlock.parse(str, md, env, outTokens)
|
|
*
|
|
* Process input string and push block tokens into `outTokens`
|
|
**/ ParserBlock.prototype.parse = function(src, md, env, outTokens) {
|
|
if (!src) {
|
|
return;
|
|
}
|
|
const state = new this.State(src, md, env, outTokens);
|
|
this.tokenize(state, state.line, state.lineMax);
|
|
};
|
|
ParserBlock.prototype.State = StateBlock;
|
|
// Inline parser state
|
|
function StateInline(src, md, env, outTokens) {
|
|
this.src = src;
|
|
this.env = env;
|
|
this.md = md;
|
|
this.tokens = outTokens;
|
|
this.tokens_meta = Array(outTokens.length);
|
|
this.pos = 0;
|
|
this.posMax = this.src.length;
|
|
this.level = 0;
|
|
this.pending = "";
|
|
this.pendingLevel = 0;
|
|
// Stores { start: end } pairs. Useful for backtrack
|
|
// optimization of pairs parse (emphasis, strikes).
|
|
this.cache = {};
|
|
// List of emphasis-like delimiters for current tag
|
|
this.delimiters = [];
|
|
// Stack of delimiter lists for upper level tags
|
|
this._prev_delimiters = [];
|
|
// backtick length => last seen position
|
|
this.backticks = {};
|
|
this.backticksScanned = false;
|
|
// Counter used to disable inline linkify-it execution
|
|
// inside <a> and markdown links
|
|
this.linkLevel = 0;
|
|
}
|
|
// Flush pending text
|
|
|
|
StateInline.prototype.pushPending = function() {
|
|
const token = new Token("text", "", 0);
|
|
token.content = this.pending;
|
|
token.level = this.pendingLevel;
|
|
this.tokens.push(token);
|
|
this.pending = "";
|
|
return token;
|
|
};
|
|
// Push new token to "stream".
|
|
// If pending text exists - flush it as text token
|
|
|
|
StateInline.prototype.push = function(type, tag, nesting) {
|
|
if (this.pending) {
|
|
this.pushPending();
|
|
}
|
|
const token = new Token(type, tag, nesting);
|
|
let token_meta = null;
|
|
if (nesting < 0) {
|
|
// closing tag
|
|
this.level--;
|
|
this.delimiters = this._prev_delimiters.pop();
|
|
}
|
|
token.level = this.level;
|
|
if (nesting > 0) {
|
|
// opening tag
|
|
this.level++;
|
|
this._prev_delimiters.push(this.delimiters);
|
|
this.delimiters = [];
|
|
token_meta = {
|
|
delimiters: this.delimiters
|
|
};
|
|
}
|
|
this.pendingLevel = this.level;
|
|
this.tokens.push(token);
|
|
this.tokens_meta.push(token_meta);
|
|
return token;
|
|
};
|
|
// Scan a sequence of emphasis-like markers, and determine whether
|
|
// it can start an emphasis sequence or end an emphasis sequence.
|
|
|
|
// - start - position to scan from (it should point at a valid marker);
|
|
// - canSplitWord - determine if these markers can be found inside a word
|
|
|
|
StateInline.prototype.scanDelims = function(start, canSplitWord) {
|
|
let can_open, can_close;
|
|
let left_flanking = true;
|
|
let right_flanking = true;
|
|
const max = this.posMax;
|
|
const marker = this.src.charCodeAt(start);
|
|
// treat beginning of the line as a whitespace
|
|
const lastChar = start > 0 ? this.src.charCodeAt(start - 1) : 32;
|
|
let pos = start;
|
|
while (pos < max && this.src.charCodeAt(pos) === marker) {
|
|
pos++;
|
|
}
|
|
const count = pos - start;
|
|
// treat end of the line as a whitespace
|
|
const nextChar = pos < max ? this.src.charCodeAt(pos) : 32;
|
|
const isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(String.fromCharCode(lastChar));
|
|
const isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(String.fromCharCode(nextChar));
|
|
const isLastWhiteSpace = isWhiteSpace(lastChar);
|
|
const isNextWhiteSpace = isWhiteSpace(nextChar);
|
|
if (isNextWhiteSpace) {
|
|
left_flanking = false;
|
|
} else if (isNextPunctChar) {
|
|
if (!(isLastWhiteSpace || isLastPunctChar)) {
|
|
left_flanking = false;
|
|
}
|
|
}
|
|
if (isLastWhiteSpace) {
|
|
right_flanking = false;
|
|
} else if (isLastPunctChar) {
|
|
if (!(isNextWhiteSpace || isNextPunctChar)) {
|
|
right_flanking = false;
|
|
}
|
|
}
|
|
if (!canSplitWord) {
|
|
can_open = left_flanking && (!right_flanking || isLastPunctChar);
|
|
can_close = right_flanking && (!left_flanking || isNextPunctChar);
|
|
} else {
|
|
can_open = left_flanking;
|
|
can_close = right_flanking;
|
|
}
|
|
return {
|
|
can_open: can_open,
|
|
can_close: can_close,
|
|
length: count
|
|
};
|
|
};
|
|
// re-export Token class to use in block rules
|
|
StateInline.prototype.Token = Token;
|
|
// Skip text characters for text token, place those to pending buffer
|
|
// and increment current pos
|
|
// Rule to skip pure text
|
|
// '{}$%@~+=:' reserved for extentions
|
|
// !, ", #, $, %, &, ', (, ), *, +, ,, -, ., /, :, ;, <, =, >, ?, @, [, \, ], ^, _, `, {, |, }, or ~
|
|
// !!!! Don't confuse with "Markdown ASCII Punctuation" chars
|
|
// http://spec.commonmark.org/0.15/#ascii-punctuation-character
|
|
function isTerminatorChar(ch) {
|
|
switch (ch) {
|
|
case 10 /* \n */ :
|
|
case 33 /* ! */ :
|
|
case 35 /* # */ :
|
|
case 36 /* $ */ :
|
|
case 37 /* % */ :
|
|
case 38 /* & */ :
|
|
case 42 /* * */ :
|
|
case 43 /* + */ :
|
|
case 45 /* - */ :
|
|
case 58 /* : */ :
|
|
case 60 /* < */ :
|
|
case 61 /* = */ :
|
|
case 62 /* > */ :
|
|
case 64 /* @ */ :
|
|
case 91 /* [ */ :
|
|
case 92 /* \ */ :
|
|
case 93 /* ] */ :
|
|
case 94 /* ^ */ :
|
|
case 95 /* _ */ :
|
|
case 96 /* ` */ :
|
|
case 123 /* { */ :
|
|
case 125 /* } */ :
|
|
case 126 /* ~ */ :
|
|
return true;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
function text(state, silent) {
|
|
let pos = state.pos;
|
|
while (pos < state.posMax && !isTerminatorChar(state.src.charCodeAt(pos))) {
|
|
pos++;
|
|
}
|
|
if (pos === state.pos) {
|
|
return false;
|
|
}
|
|
if (!silent) {
|
|
state.pending += state.src.slice(state.pos, pos);
|
|
}
|
|
state.pos = pos;
|
|
return true;
|
|
}
|
|
// Alternative implementation, for memory.
|
|
|
|
// It costs 10% of performance, but allows extend terminators list, if place it
|
|
// to `ParcerInline` property. Probably, will switch to it sometime, such
|
|
// flexibility required.
|
|
/*
|
|
var TERMINATOR_RE = /[\n!#$%&*+\-:<=>@[\\\]^_`{}~]/;
|
|
|
|
module.exports = function text(state, silent) {
|
|
var pos = state.pos,
|
|
idx = state.src.slice(pos).search(TERMINATOR_RE);
|
|
|
|
// first char is terminator -> empty text
|
|
if (idx === 0) { return false; }
|
|
|
|
// no terminator -> text till end of string
|
|
if (idx < 0) {
|
|
if (!silent) { state.pending += state.src.slice(pos); }
|
|
state.pos = state.src.length;
|
|
return true;
|
|
}
|
|
|
|
if (!silent) { state.pending += state.src.slice(pos, pos + idx); }
|
|
|
|
state.pos += idx;
|
|
|
|
return true;
|
|
}; */
|
|
// Process links like https://example.org/
|
|
// RFC3986: scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
|
|
const SCHEME_RE = /(?:^|[^a-z0-9.+-])([a-z][a-z0-9.+-]*)$/i;
|
|
function linkify(state, silent) {
|
|
if (!state.md.options.linkify) return false;
|
|
if (state.linkLevel > 0) return false;
|
|
const pos = state.pos;
|
|
const max = state.posMax;
|
|
if (pos + 3 > max) return false;
|
|
if (state.src.charCodeAt(pos) !== 58 /* : */) return false;
|
|
if (state.src.charCodeAt(pos + 1) !== 47 /* / */) return false;
|
|
if (state.src.charCodeAt(pos + 2) !== 47 /* / */) return false;
|
|
const match = state.pending.match(SCHEME_RE);
|
|
if (!match) return false;
|
|
const proto = match[1];
|
|
const link = state.md.linkify.matchAtStart(state.src.slice(pos - proto.length));
|
|
if (!link) return false;
|
|
let url = link.url;
|
|
// invalid link, but still detected by linkify somehow;
|
|
// need to check to prevent infinite loop below
|
|
if (url.length <= proto.length) return false;
|
|
// disallow '*' at the end of the link (conflicts with emphasis)
|
|
url = url.replace(/\*+$/, "");
|
|
const fullUrl = state.md.normalizeLink(url);
|
|
if (!state.md.validateLink(fullUrl)) return false;
|
|
if (!silent) {
|
|
state.pending = state.pending.slice(0, -proto.length);
|
|
const token_o = state.push("link_open", "a", 1);
|
|
token_o.attrs = [ [ "href", fullUrl ] ];
|
|
token_o.markup = "linkify";
|
|
token_o.info = "auto";
|
|
const token_t = state.push("text", "", 0);
|
|
token_t.content = state.md.normalizeLinkText(url);
|
|
const token_c = state.push("link_close", "a", -1);
|
|
token_c.markup = "linkify";
|
|
token_c.info = "auto";
|
|
}
|
|
state.pos += url.length - proto.length;
|
|
return true;
|
|
}
|
|
// Proceess '\n'
|
|
function newline(state, silent) {
|
|
let pos = state.pos;
|
|
if (state.src.charCodeAt(pos) !== 10 /* \n */) {
|
|
return false;
|
|
}
|
|
const pmax = state.pending.length - 1;
|
|
const max = state.posMax;
|
|
// ' \n' -> hardbreak
|
|
// Lookup in pending chars is bad practice! Don't copy to other rules!
|
|
// Pending string is stored in concat mode, indexed lookups will cause
|
|
// convertion to flat mode.
|
|
if (!silent) {
|
|
if (pmax >= 0 && state.pending.charCodeAt(pmax) === 32) {
|
|
if (pmax >= 1 && state.pending.charCodeAt(pmax - 1) === 32) {
|
|
// Find whitespaces tail of pending chars.
|
|
let ws = pmax - 1;
|
|
while (ws >= 1 && state.pending.charCodeAt(ws - 1) === 32) ws--;
|
|
state.pending = state.pending.slice(0, ws);
|
|
state.push("hardbreak", "br", 0);
|
|
} else {
|
|
state.pending = state.pending.slice(0, -1);
|
|
state.push("softbreak", "br", 0);
|
|
}
|
|
} else {
|
|
state.push("softbreak", "br", 0);
|
|
}
|
|
}
|
|
pos++;
|
|
// skip heading spaces for next line
|
|
while (pos < max && isSpace(state.src.charCodeAt(pos))) {
|
|
pos++;
|
|
}
|
|
state.pos = pos;
|
|
return true;
|
|
}
|
|
// Process escaped chars and hardbreaks
|
|
const ESCAPED = [];
|
|
for (let i = 0; i < 256; i++) {
|
|
ESCAPED.push(0);
|
|
}
|
|
"\\!\"#$%&'()*+,./:;<=>?@[]^_`{|}~-".split("").forEach((function(ch) {
|
|
ESCAPED[ch.charCodeAt(0)] = 1;
|
|
}));
|
|
function escape(state, silent) {
|
|
let pos = state.pos;
|
|
const max = state.posMax;
|
|
if (state.src.charCodeAt(pos) !== 92 /* \ */) return false;
|
|
pos++;
|
|
// '\' at the end of the inline block
|
|
if (pos >= max) return false;
|
|
let ch1 = state.src.charCodeAt(pos);
|
|
if (ch1 === 10) {
|
|
if (!silent) {
|
|
state.push("hardbreak", "br", 0);
|
|
}
|
|
pos++;
|
|
// skip leading whitespaces from next line
|
|
while (pos < max) {
|
|
ch1 = state.src.charCodeAt(pos);
|
|
if (!isSpace(ch1)) break;
|
|
pos++;
|
|
}
|
|
state.pos = pos;
|
|
return true;
|
|
}
|
|
let escapedStr = state.src[pos];
|
|
if (ch1 >= 55296 && ch1 <= 56319 && pos + 1 < max) {
|
|
const ch2 = state.src.charCodeAt(pos + 1);
|
|
if (ch2 >= 56320 && ch2 <= 57343) {
|
|
escapedStr += state.src[pos + 1];
|
|
pos++;
|
|
}
|
|
}
|
|
const origStr = "\\" + escapedStr;
|
|
if (!silent) {
|
|
const token = state.push("text_special", "", 0);
|
|
if (ch1 < 256 && ESCAPED[ch1] !== 0) {
|
|
token.content = escapedStr;
|
|
} else {
|
|
token.content = origStr;
|
|
}
|
|
token.markup = origStr;
|
|
token.info = "escape";
|
|
}
|
|
state.pos = pos + 1;
|
|
return true;
|
|
}
|
|
// Parse backticks
|
|
function backtick(state, silent) {
|
|
let pos = state.pos;
|
|
const ch = state.src.charCodeAt(pos);
|
|
if (ch !== 96 /* ` */) {
|
|
return false;
|
|
}
|
|
const start = pos;
|
|
pos++;
|
|
const max = state.posMax;
|
|
// scan marker length
|
|
while (pos < max && state.src.charCodeAt(pos) === 96 /* ` */) {
|
|
pos++;
|
|
}
|
|
const marker = state.src.slice(start, pos);
|
|
const openerLength = marker.length;
|
|
if (state.backticksScanned && (state.backticks[openerLength] || 0) <= start) {
|
|
if (!silent) state.pending += marker;
|
|
state.pos += openerLength;
|
|
return true;
|
|
}
|
|
let matchEnd = pos;
|
|
let matchStart;
|
|
// Nothing found in the cache, scan until the end of the line (or until marker is found)
|
|
while ((matchStart = state.src.indexOf("`", matchEnd)) !== -1) {
|
|
matchEnd = matchStart + 1;
|
|
// scan marker length
|
|
while (matchEnd < max && state.src.charCodeAt(matchEnd) === 96 /* ` */) {
|
|
matchEnd++;
|
|
}
|
|
const closerLength = matchEnd - matchStart;
|
|
if (closerLength === openerLength) {
|
|
// Found matching closer length.
|
|
if (!silent) {
|
|
const token = state.push("code_inline", "code", 0);
|
|
token.markup = marker;
|
|
token.content = state.src.slice(pos, matchStart).replace(/\n/g, " ").replace(/^ (.+) $/, "$1");
|
|
}
|
|
state.pos = matchEnd;
|
|
return true;
|
|
}
|
|
// Some different length found, put it in cache as upper limit of where closer can be found
|
|
state.backticks[closerLength] = matchStart;
|
|
}
|
|
// Scanned through the end, didn't find anything
|
|
state.backticksScanned = true;
|
|
if (!silent) state.pending += marker;
|
|
state.pos += openerLength;
|
|
return true;
|
|
}
|
|
// ~~strike through~~
|
|
|
|
// Insert each marker as a separate text token, and add it to delimiter list
|
|
|
|
function strikethrough_tokenize(state, silent) {
|
|
const start = state.pos;
|
|
const marker = state.src.charCodeAt(start);
|
|
if (silent) {
|
|
return false;
|
|
}
|
|
if (marker !== 126 /* ~ */) {
|
|
return false;
|
|
}
|
|
const scanned = state.scanDelims(state.pos, true);
|
|
let len = scanned.length;
|
|
const ch = String.fromCharCode(marker);
|
|
if (len < 2) {
|
|
return false;
|
|
}
|
|
let token;
|
|
if (len % 2) {
|
|
token = state.push("text", "", 0);
|
|
token.content = ch;
|
|
len--;
|
|
}
|
|
for (let i = 0; i < len; i += 2) {
|
|
token = state.push("text", "", 0);
|
|
token.content = ch + ch;
|
|
state.delimiters.push({
|
|
marker: marker,
|
|
length: 0,
|
|
// disable "rule of 3" length checks meant for emphasis
|
|
token: state.tokens.length - 1,
|
|
end: -1,
|
|
open: scanned.can_open,
|
|
close: scanned.can_close
|
|
});
|
|
}
|
|
state.pos += scanned.length;
|
|
return true;
|
|
}
|
|
function postProcess$1(state, delimiters) {
|
|
let token;
|
|
const loneMarkers = [];
|
|
const max = delimiters.length;
|
|
for (let i = 0; i < max; i++) {
|
|
const startDelim = delimiters[i];
|
|
if (startDelim.marker !== 126 /* ~ */) {
|
|
continue;
|
|
}
|
|
if (startDelim.end === -1) {
|
|
continue;
|
|
}
|
|
const endDelim = delimiters[startDelim.end];
|
|
token = state.tokens[startDelim.token];
|
|
token.type = "s_open";
|
|
token.tag = "s";
|
|
token.nesting = 1;
|
|
token.markup = "~~";
|
|
token.content = "";
|
|
token = state.tokens[endDelim.token];
|
|
token.type = "s_close";
|
|
token.tag = "s";
|
|
token.nesting = -1;
|
|
token.markup = "~~";
|
|
token.content = "";
|
|
if (state.tokens[endDelim.token - 1].type === "text" && state.tokens[endDelim.token - 1].content === "~") {
|
|
loneMarkers.push(endDelim.token - 1);
|
|
}
|
|
}
|
|
// If a marker sequence has an odd number of characters, it's splitted
|
|
// like this: `~~~~~` -> `~` + `~~` + `~~`, leaving one marker at the
|
|
// start of the sequence.
|
|
|
|
// So, we have to move all those markers after subsequent s_close tags.
|
|
|
|
while (loneMarkers.length) {
|
|
const i = loneMarkers.pop();
|
|
let j = i + 1;
|
|
while (j < state.tokens.length && state.tokens[j].type === "s_close") {
|
|
j++;
|
|
}
|
|
j--;
|
|
if (i !== j) {
|
|
token = state.tokens[j];
|
|
state.tokens[j] = state.tokens[i];
|
|
state.tokens[i] = token;
|
|
}
|
|
}
|
|
}
|
|
// Walk through delimiter list and replace text tokens with tags
|
|
|
|
function strikethrough_postProcess(state) {
|
|
const tokens_meta = state.tokens_meta;
|
|
const max = state.tokens_meta.length;
|
|
postProcess$1(state, state.delimiters);
|
|
for (let curr = 0; curr < max; curr++) {
|
|
if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
|
|
postProcess$1(state, tokens_meta[curr].delimiters);
|
|
}
|
|
}
|
|
}
|
|
var r_strikethrough = {
|
|
tokenize: strikethrough_tokenize,
|
|
postProcess: strikethrough_postProcess
|
|
};
|
|
// Process *this* and _that_
|
|
|
|
// Insert each marker as a separate text token, and add it to delimiter list
|
|
|
|
function emphasis_tokenize(state, silent) {
|
|
const start = state.pos;
|
|
const marker = state.src.charCodeAt(start);
|
|
if (silent) {
|
|
return false;
|
|
}
|
|
if (marker !== 95 /* _ */ && marker !== 42 /* * */) {
|
|
return false;
|
|
}
|
|
const scanned = state.scanDelims(state.pos, marker === 42);
|
|
for (let i = 0; i < scanned.length; i++) {
|
|
const token = state.push("text", "", 0);
|
|
token.content = String.fromCharCode(marker);
|
|
state.delimiters.push({
|
|
// Char code of the starting marker (number).
|
|
marker: marker,
|
|
// Total length of these series of delimiters.
|
|
length: scanned.length,
|
|
// A position of the token this delimiter corresponds to.
|
|
token: state.tokens.length - 1,
|
|
// If this delimiter is matched as a valid opener, `end` will be
|
|
// equal to its position, otherwise it's `-1`.
|
|
end: -1,
|
|
// Boolean flags that determine if this delimiter could open or close
|
|
// an emphasis.
|
|
open: scanned.can_open,
|
|
close: scanned.can_close
|
|
});
|
|
}
|
|
state.pos += scanned.length;
|
|
return true;
|
|
}
|
|
function postProcess(state, delimiters) {
|
|
const max = delimiters.length;
|
|
for (let i = max - 1; i >= 0; i--) {
|
|
const startDelim = delimiters[i];
|
|
if (startDelim.marker !== 95 /* _ */ && startDelim.marker !== 42 /* * */) {
|
|
continue;
|
|
}
|
|
// Process only opening markers
|
|
if (startDelim.end === -1) {
|
|
continue;
|
|
}
|
|
const endDelim = delimiters[startDelim.end];
|
|
// If the previous delimiter has the same marker and is adjacent to this one,
|
|
// merge those into one strong delimiter.
|
|
|
|
// `<em><em>whatever</em></em>` -> `<strong>whatever</strong>`
|
|
|
|
const isStrong = i > 0 && delimiters[i - 1].end === startDelim.end + 1 &&
|
|
// check that first two markers match and adjacent
|
|
delimiters[i - 1].marker === startDelim.marker && delimiters[i - 1].token === startDelim.token - 1 &&
|
|
// check that last two markers are adjacent (we can safely assume they match)
|
|
delimiters[startDelim.end + 1].token === endDelim.token + 1;
|
|
const ch = String.fromCharCode(startDelim.marker);
|
|
const token_o = state.tokens[startDelim.token];
|
|
token_o.type = isStrong ? "strong_open" : "em_open";
|
|
token_o.tag = isStrong ? "strong" : "em";
|
|
token_o.nesting = 1;
|
|
token_o.markup = isStrong ? ch + ch : ch;
|
|
token_o.content = "";
|
|
const token_c = state.tokens[endDelim.token];
|
|
token_c.type = isStrong ? "strong_close" : "em_close";
|
|
token_c.tag = isStrong ? "strong" : "em";
|
|
token_c.nesting = -1;
|
|
token_c.markup = isStrong ? ch + ch : ch;
|
|
token_c.content = "";
|
|
if (isStrong) {
|
|
state.tokens[delimiters[i - 1].token].content = "";
|
|
state.tokens[delimiters[startDelim.end + 1].token].content = "";
|
|
i--;
|
|
}
|
|
}
|
|
}
|
|
// Walk through delimiter list and replace text tokens with tags
|
|
|
|
function emphasis_post_process(state) {
|
|
const tokens_meta = state.tokens_meta;
|
|
const max = state.tokens_meta.length;
|
|
postProcess(state, state.delimiters);
|
|
for (let curr = 0; curr < max; curr++) {
|
|
if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
|
|
postProcess(state, tokens_meta[curr].delimiters);
|
|
}
|
|
}
|
|
}
|
|
var r_emphasis = {
|
|
tokenize: emphasis_tokenize,
|
|
postProcess: emphasis_post_process
|
|
};
|
|
// Process [link](<to> "stuff")
|
|
function link(state, silent) {
|
|
let code, label, res, ref;
|
|
let href = "";
|
|
let title = "";
|
|
let start = state.pos;
|
|
let parseReference = true;
|
|
if (state.src.charCodeAt(state.pos) !== 91 /* [ */) {
|
|
return false;
|
|
}
|
|
const oldPos = state.pos;
|
|
const max = state.posMax;
|
|
const labelStart = state.pos + 1;
|
|
const labelEnd = state.md.helpers.parseLinkLabel(state, state.pos, true);
|
|
// parser failed to find ']', so it's not a valid link
|
|
if (labelEnd < 0) {
|
|
return false;
|
|
}
|
|
let pos = labelEnd + 1;
|
|
if (pos < max && state.src.charCodeAt(pos) === 40 /* ( */) {
|
|
// Inline link
|
|
// might have found a valid shortcut link, disable reference parsing
|
|
parseReference = false;
|
|
// [link]( <href> "title" )
|
|
// ^^ skipping these spaces
|
|
pos++;
|
|
for (;pos < max; pos++) {
|
|
code = state.src.charCodeAt(pos);
|
|
if (!isSpace(code) && code !== 10) {
|
|
break;
|
|
}
|
|
}
|
|
if (pos >= max) {
|
|
return false;
|
|
}
|
|
// [link]( <href> "title" )
|
|
// ^^^^^^ parsing link destination
|
|
start = pos;
|
|
res = state.md.helpers.parseLinkDestination(state.src, pos, state.posMax);
|
|
if (res.ok) {
|
|
href = state.md.normalizeLink(res.str);
|
|
if (state.md.validateLink(href)) {
|
|
pos = res.pos;
|
|
} else {
|
|
href = "";
|
|
}
|
|
// [link]( <href> "title" )
|
|
// ^^ skipping these spaces
|
|
start = pos;
|
|
for (;pos < max; pos++) {
|
|
code = state.src.charCodeAt(pos);
|
|
if (!isSpace(code) && code !== 10) {
|
|
break;
|
|
}
|
|
}
|
|
// [link]( <href> "title" )
|
|
// ^^^^^^^ parsing link title
|
|
res = state.md.helpers.parseLinkTitle(state.src, pos, state.posMax);
|
|
if (pos < max && start !== pos && res.ok) {
|
|
title = res.str;
|
|
pos = res.pos;
|
|
// [link]( <href> "title" )
|
|
// ^^ skipping these spaces
|
|
for (;pos < max; pos++) {
|
|
code = state.src.charCodeAt(pos);
|
|
if (!isSpace(code) && code !== 10) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (pos >= max || state.src.charCodeAt(pos) !== 41 /* ) */) {
|
|
// parsing a valid shortcut link failed, fallback to reference
|
|
parseReference = true;
|
|
}
|
|
pos++;
|
|
}
|
|
if (parseReference) {
|
|
// Link reference
|
|
if (typeof state.env.references === "undefined") {
|
|
return false;
|
|
}
|
|
if (pos < max && state.src.charCodeAt(pos) === 91 /* [ */) {
|
|
start = pos + 1;
|
|
pos = state.md.helpers.parseLinkLabel(state, pos);
|
|
if (pos >= 0) {
|
|
label = state.src.slice(start, pos++);
|
|
} else {
|
|
pos = labelEnd + 1;
|
|
}
|
|
} else {
|
|
pos = labelEnd + 1;
|
|
}
|
|
// covers label === '' and label === undefined
|
|
// (collapsed reference link and shortcut reference link respectively)
|
|
if (!label) {
|
|
label = state.src.slice(labelStart, labelEnd);
|
|
}
|
|
ref = state.env.references[normalizeReference(label)];
|
|
if (!ref) {
|
|
state.pos = oldPos;
|
|
return false;
|
|
}
|
|
href = ref.href;
|
|
title = ref.title;
|
|
}
|
|
|
|
// We found the end of the link, and know for a fact it's a valid link;
|
|
// so all that's left to do is to call tokenizer.
|
|
|
|
if (!silent) {
|
|
state.pos = labelStart;
|
|
state.posMax = labelEnd;
|
|
const token_o = state.push("link_open", "a", 1);
|
|
const attrs = [ [ "href", href ] ];
|
|
token_o.attrs = attrs;
|
|
if (title) {
|
|
attrs.push([ "title", title ]);
|
|
}
|
|
state.linkLevel++;
|
|
state.md.inline.tokenize(state);
|
|
state.linkLevel--;
|
|
state.push("link_close", "a", -1);
|
|
}
|
|
state.pos = pos;
|
|
state.posMax = max;
|
|
return true;
|
|
}
|
|
// Process 
|
|
function image(state, silent) {
|
|
let code, content, label, pos, ref, res, title, start;
|
|
let href = "";
|
|
const oldPos = state.pos;
|
|
const max = state.posMax;
|
|
if (state.src.charCodeAt(state.pos) !== 33 /* ! */) {
|
|
return false;
|
|
}
|
|
if (state.src.charCodeAt(state.pos + 1) !== 91 /* [ */) {
|
|
return false;
|
|
}
|
|
const labelStart = state.pos + 2;
|
|
const labelEnd = state.md.helpers.parseLinkLabel(state, state.pos + 1, false);
|
|
// parser failed to find ']', so it's not a valid link
|
|
if (labelEnd < 0) {
|
|
return false;
|
|
}
|
|
pos = labelEnd + 1;
|
|
if (pos < max && state.src.charCodeAt(pos) === 40 /* ( */) {
|
|
// Inline link
|
|
// [link]( <href> "title" )
|
|
// ^^ skipping these spaces
|
|
pos++;
|
|
for (;pos < max; pos++) {
|
|
code = state.src.charCodeAt(pos);
|
|
if (!isSpace(code) && code !== 10) {
|
|
break;
|
|
}
|
|
}
|
|
if (pos >= max) {
|
|
return false;
|
|
}
|
|
// [link]( <href> "title" )
|
|
// ^^^^^^ parsing link destination
|
|
start = pos;
|
|
res = state.md.helpers.parseLinkDestination(state.src, pos, state.posMax);
|
|
if (res.ok) {
|
|
href = state.md.normalizeLink(res.str);
|
|
if (state.md.validateLink(href)) {
|
|
pos = res.pos;
|
|
} else {
|
|
href = "";
|
|
}
|
|
}
|
|
// [link]( <href> "title" )
|
|
// ^^ skipping these spaces
|
|
start = pos;
|
|
for (;pos < max; pos++) {
|
|
code = state.src.charCodeAt(pos);
|
|
if (!isSpace(code) && code !== 10) {
|
|
break;
|
|
}
|
|
}
|
|
// [link]( <href> "title" )
|
|
// ^^^^^^^ parsing link title
|
|
res = state.md.helpers.parseLinkTitle(state.src, pos, state.posMax);
|
|
if (pos < max && start !== pos && res.ok) {
|
|
title = res.str;
|
|
pos = res.pos;
|
|
// [link]( <href> "title" )
|
|
// ^^ skipping these spaces
|
|
for (;pos < max; pos++) {
|
|
code = state.src.charCodeAt(pos);
|
|
if (!isSpace(code) && code !== 10) {
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
title = "";
|
|
}
|
|
if (pos >= max || state.src.charCodeAt(pos) !== 41 /* ) */) {
|
|
state.pos = oldPos;
|
|
return false;
|
|
}
|
|
pos++;
|
|
} else {
|
|
// Link reference
|
|
if (typeof state.env.references === "undefined") {
|
|
return false;
|
|
}
|
|
if (pos < max && state.src.charCodeAt(pos) === 91 /* [ */) {
|
|
start = pos + 1;
|
|
pos = state.md.helpers.parseLinkLabel(state, pos);
|
|
if (pos >= 0) {
|
|
label = state.src.slice(start, pos++);
|
|
} else {
|
|
pos = labelEnd + 1;
|
|
}
|
|
} else {
|
|
pos = labelEnd + 1;
|
|
}
|
|
// covers label === '' and label === undefined
|
|
// (collapsed reference link and shortcut reference link respectively)
|
|
if (!label) {
|
|
label = state.src.slice(labelStart, labelEnd);
|
|
}
|
|
ref = state.env.references[normalizeReference(label)];
|
|
if (!ref) {
|
|
state.pos = oldPos;
|
|
return false;
|
|
}
|
|
href = ref.href;
|
|
title = ref.title;
|
|
}
|
|
|
|
// We found the end of the link, and know for a fact it's a valid link;
|
|
// so all that's left to do is to call tokenizer.
|
|
|
|
if (!silent) {
|
|
content = state.src.slice(labelStart, labelEnd);
|
|
const tokens = [];
|
|
state.md.inline.parse(content, state.md, state.env, tokens);
|
|
const token = state.push("image", "img", 0);
|
|
const attrs = [ [ "src", href ], [ "alt", "" ] ];
|
|
token.attrs = attrs;
|
|
token.children = tokens;
|
|
token.content = content;
|
|
if (title) {
|
|
attrs.push([ "title", title ]);
|
|
}
|
|
}
|
|
state.pos = pos;
|
|
state.posMax = max;
|
|
return true;
|
|
}
|
|
// Process autolinks '<protocol:...>'
|
|
/* eslint max-len:0 */ const EMAIL_RE = /^([a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)$/;
|
|
/* eslint-disable-next-line no-control-regex */ const AUTOLINK_RE = /^([a-zA-Z][a-zA-Z0-9+.-]{1,31}):([^<>\x00-\x20]*)$/;
|
|
function autolink(state, silent) {
|
|
let pos = state.pos;
|
|
if (state.src.charCodeAt(pos) !== 60 /* < */) {
|
|
return false;
|
|
}
|
|
const start = state.pos;
|
|
const max = state.posMax;
|
|
for (;;) {
|
|
if (++pos >= max) return false;
|
|
const ch = state.src.charCodeAt(pos);
|
|
if (ch === 60 /* < */) return false;
|
|
if (ch === 62 /* > */) break;
|
|
}
|
|
const url = state.src.slice(start + 1, pos);
|
|
if (AUTOLINK_RE.test(url)) {
|
|
const fullUrl = state.md.normalizeLink(url);
|
|
if (!state.md.validateLink(fullUrl)) {
|
|
return false;
|
|
}
|
|
if (!silent) {
|
|
const token_o = state.push("link_open", "a", 1);
|
|
token_o.attrs = [ [ "href", fullUrl ] ];
|
|
token_o.markup = "autolink";
|
|
token_o.info = "auto";
|
|
const token_t = state.push("text", "", 0);
|
|
token_t.content = state.md.normalizeLinkText(url);
|
|
const token_c = state.push("link_close", "a", -1);
|
|
token_c.markup = "autolink";
|
|
token_c.info = "auto";
|
|
}
|
|
state.pos += url.length + 2;
|
|
return true;
|
|
}
|
|
if (EMAIL_RE.test(url)) {
|
|
const fullUrl = state.md.normalizeLink("mailto:" + url);
|
|
if (!state.md.validateLink(fullUrl)) {
|
|
return false;
|
|
}
|
|
if (!silent) {
|
|
const token_o = state.push("link_open", "a", 1);
|
|
token_o.attrs = [ [ "href", fullUrl ] ];
|
|
token_o.markup = "autolink";
|
|
token_o.info = "auto";
|
|
const token_t = state.push("text", "", 0);
|
|
token_t.content = state.md.normalizeLinkText(url);
|
|
const token_c = state.push("link_close", "a", -1);
|
|
token_c.markup = "autolink";
|
|
token_c.info = "auto";
|
|
}
|
|
state.pos += url.length + 2;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
// Process html tags
|
|
function isLinkOpen(str) {
|
|
return /^<a[>\s]/i.test(str);
|
|
}
|
|
function isLinkClose(str) {
|
|
return /^<\/a\s*>/i.test(str);
|
|
}
|
|
function isLetter(ch) {
|
|
/* eslint no-bitwise:0 */
|
|
const lc = ch | 32;
|
|
// to lower case
|
|
return lc >= 97 /* a */ && lc <= 122 /* z */;
|
|
}
|
|
function html_inline(state, silent) {
|
|
if (!state.md.options.html) {
|
|
return false;
|
|
}
|
|
// Check start
|
|
const max = state.posMax;
|
|
const pos = state.pos;
|
|
if (state.src.charCodeAt(pos) !== 60 /* < */ || pos + 2 >= max) {
|
|
return false;
|
|
}
|
|
// Quick fail on second char
|
|
const ch = state.src.charCodeAt(pos + 1);
|
|
if (ch !== 33 /* ! */ && ch !== 63 /* ? */ && ch !== 47 /* / */ && !isLetter(ch)) {
|
|
return false;
|
|
}
|
|
const match = state.src.slice(pos).match(HTML_TAG_RE);
|
|
if (!match) {
|
|
return false;
|
|
}
|
|
if (!silent) {
|
|
const token = state.push("html_inline", "", 0);
|
|
token.content = match[0];
|
|
if (isLinkOpen(token.content)) state.linkLevel++;
|
|
if (isLinkClose(token.content)) state.linkLevel--;
|
|
}
|
|
state.pos += match[0].length;
|
|
return true;
|
|
}
|
|
// Process html entity - {, ¯, ", ...
|
|
const DIGITAL_RE = /^&#((?:x[a-f0-9]{1,6}|[0-9]{1,7}));/i;
|
|
const NAMED_RE = /^&([a-z][a-z0-9]{1,31});/i;
|
|
function entity(state, silent) {
|
|
const pos = state.pos;
|
|
const max = state.posMax;
|
|
if (state.src.charCodeAt(pos) !== 38 /* & */) return false;
|
|
if (pos + 1 >= max) return false;
|
|
const ch = state.src.charCodeAt(pos + 1);
|
|
if (ch === 35 /* # */) {
|
|
const match = state.src.slice(pos).match(DIGITAL_RE);
|
|
if (match) {
|
|
if (!silent) {
|
|
const code = match[1][0].toLowerCase() === "x" ? parseInt(match[1].slice(1), 16) : parseInt(match[1], 10);
|
|
const token = state.push("text_special", "", 0);
|
|
token.content = isValidEntityCode(code) ? fromCodePoint(code) : fromCodePoint(65533);
|
|
token.markup = match[0];
|
|
token.info = "entity";
|
|
}
|
|
state.pos += match[0].length;
|
|
return true;
|
|
}
|
|
} else {
|
|
const match = state.src.slice(pos).match(NAMED_RE);
|
|
if (match) {
|
|
const decoded = decodeHTML(match[0]);
|
|
if (decoded !== match[0]) {
|
|
if (!silent) {
|
|
const token = state.push("text_special", "", 0);
|
|
token.content = decoded;
|
|
token.markup = match[0];
|
|
token.info = "entity";
|
|
}
|
|
state.pos += match[0].length;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
// For each opening emphasis-like marker find a matching closing one
|
|
|
|
function processDelimiters(delimiters) {
|
|
const openersBottom = {};
|
|
const max = delimiters.length;
|
|
if (!max) return;
|
|
// headerIdx is the first delimiter of the current (where closer is) delimiter run
|
|
let headerIdx = 0;
|
|
let lastTokenIdx = -2;
|
|
// needs any value lower than -1
|
|
const jumps = [];
|
|
for (let closerIdx = 0; closerIdx < max; closerIdx++) {
|
|
const closer = delimiters[closerIdx];
|
|
jumps.push(0);
|
|
// markers belong to same delimiter run if:
|
|
// - they have adjacent tokens
|
|
// - AND markers are the same
|
|
|
|
if (delimiters[headerIdx].marker !== closer.marker || lastTokenIdx !== closer.token - 1) {
|
|
headerIdx = closerIdx;
|
|
}
|
|
lastTokenIdx = closer.token;
|
|
// Length is only used for emphasis-specific "rule of 3",
|
|
// if it's not defined (in strikethrough or 3rd party plugins),
|
|
// we can default it to 0 to disable those checks.
|
|
|
|
closer.length = closer.length || 0;
|
|
if (!closer.close) continue;
|
|
// Previously calculated lower bounds (previous fails)
|
|
// for each marker, each delimiter length modulo 3,
|
|
// and for whether this closer can be an opener;
|
|
// https://github.com/commonmark/cmark/commit/34250e12ccebdc6372b8b49c44fab57c72443460
|
|
/* eslint-disable-next-line no-prototype-builtins */ if (!openersBottom.hasOwnProperty(closer.marker)) {
|
|
openersBottom[closer.marker] = [ -1, -1, -1, -1, -1, -1 ];
|
|
}
|
|
const minOpenerIdx = openersBottom[closer.marker][(closer.open ? 3 : 0) + closer.length % 3];
|
|
let openerIdx = headerIdx - jumps[headerIdx] - 1;
|
|
let newMinOpenerIdx = openerIdx;
|
|
for (;openerIdx > minOpenerIdx; openerIdx -= jumps[openerIdx] + 1) {
|
|
const opener = delimiters[openerIdx];
|
|
if (opener.marker !== closer.marker) continue;
|
|
if (opener.open && opener.end < 0) {
|
|
let isOddMatch = false;
|
|
// from spec:
|
|
|
|
// If one of the delimiters can both open and close emphasis, then the
|
|
// sum of the lengths of the delimiter runs containing the opening and
|
|
// closing delimiters must not be a multiple of 3 unless both lengths
|
|
// are multiples of 3.
|
|
|
|
if (opener.close || closer.open) {
|
|
if ((opener.length + closer.length) % 3 === 0) {
|
|
if (opener.length % 3 !== 0 || closer.length % 3 !== 0) {
|
|
isOddMatch = true;
|
|
}
|
|
}
|
|
}
|
|
if (!isOddMatch) {
|
|
// If previous delimiter cannot be an opener, we can safely skip
|
|
// the entire sequence in future checks. This is required to make
|
|
// sure algorithm has linear complexity (see *_*_*_*_*_... case).
|
|
const lastJump = openerIdx > 0 && !delimiters[openerIdx - 1].open ? jumps[openerIdx - 1] + 1 : 0;
|
|
jumps[closerIdx] = closerIdx - openerIdx + lastJump;
|
|
jumps[openerIdx] = lastJump;
|
|
closer.open = false;
|
|
opener.end = closerIdx;
|
|
opener.close = false;
|
|
newMinOpenerIdx = -1;
|
|
// treat next token as start of run,
|
|
// it optimizes skips in **<...>**a**<...>** pathological case
|
|
lastTokenIdx = -2;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (newMinOpenerIdx !== -1) {
|
|
// If match for this delimiter run failed, we want to set lower bound for
|
|
// future lookups. This is required to make sure algorithm has linear
|
|
// complexity.
|
|
// See details here:
|
|
// https://github.com/commonmark/cmark/issues/178#issuecomment-270417442
|
|
openersBottom[closer.marker][(closer.open ? 3 : 0) + (closer.length || 0) % 3] = newMinOpenerIdx;
|
|
}
|
|
}
|
|
}
|
|
function link_pairs(state) {
|
|
const tokens_meta = state.tokens_meta;
|
|
const max = state.tokens_meta.length;
|
|
processDelimiters(state.delimiters);
|
|
for (let curr = 0; curr < max; curr++) {
|
|
if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
|
|
processDelimiters(tokens_meta[curr].delimiters);
|
|
}
|
|
}
|
|
}
|
|
// Clean up tokens after emphasis and strikethrough postprocessing:
|
|
// merge adjacent text nodes into one and re-calculate all token levels
|
|
|
|
// This is necessary because initially emphasis delimiter markers (*, _, ~)
|
|
// are treated as their own separate text tokens. Then emphasis rule either
|
|
// leaves them as text (needed to merge with adjacent text) or turns them
|
|
// into opening/closing tags (which messes up levels inside).
|
|
|
|
function fragments_join(state) {
|
|
let curr, last;
|
|
let level = 0;
|
|
const tokens = state.tokens;
|
|
const max = state.tokens.length;
|
|
for (curr = last = 0; curr < max; curr++) {
|
|
// re-calculate levels after emphasis/strikethrough turns some text nodes
|
|
// into opening/closing tags
|
|
if (tokens[curr].nesting < 0) level--;
|
|
// closing tag
|
|
tokens[curr].level = level;
|
|
if (tokens[curr].nesting > 0) level++;
|
|
// opening tag
|
|
if (tokens[curr].type === "text" && curr + 1 < max && tokens[curr + 1].type === "text") {
|
|
// collapse two adjacent text nodes
|
|
tokens[curr + 1].content = tokens[curr].content + tokens[curr + 1].content;
|
|
} else {
|
|
if (curr !== last) {
|
|
tokens[last] = tokens[curr];
|
|
}
|
|
last++;
|
|
}
|
|
}
|
|
if (curr !== last) {
|
|
tokens.length = last;
|
|
}
|
|
}
|
|
/** internal
|
|
* class ParserInline
|
|
*
|
|
* Tokenizes paragraph content.
|
|
**/
|
|
// Parser rules
|
|
const _rules = [ [ "text", text ], [ "linkify", linkify ], [ "newline", newline ], [ "escape", escape ], [ "backticks", backtick ], [ "strikethrough", r_strikethrough.tokenize ], [ "emphasis", r_emphasis.tokenize ], [ "link", link ], [ "image", image ], [ "autolink", autolink ], [ "html_inline", html_inline ], [ "entity", entity ] ];
|
|
// `rule2` ruleset was created specifically for emphasis/strikethrough
|
|
// post-processing and may be changed in the future.
|
|
|
|
// Don't use this for anything except pairs (plugins working with `balance_pairs`).
|
|
|
|
const _rules2 = [ [ "balance_pairs", link_pairs ], [ "strikethrough", r_strikethrough.postProcess ], [ "emphasis", r_emphasis.postProcess ],
|
|
// rules for pairs separate '**' into its own text tokens, which may be left unused,
|
|
// rule below merges unused segments back with the rest of the text
|
|
[ "fragments_join", fragments_join ] ];
|
|
/**
|
|
* new ParserInline()
|
|
**/ function ParserInline() {
|
|
/**
|
|
* ParserInline#ruler -> Ruler
|
|
*
|
|
* [[Ruler]] instance. Keep configuration of inline rules.
|
|
**/
|
|
this.ruler = new Ruler;
|
|
for (let i = 0; i < _rules.length; i++) {
|
|
this.ruler.push(_rules[i][0], _rules[i][1]);
|
|
}
|
|
/**
|
|
* ParserInline#ruler2 -> Ruler
|
|
*
|
|
* [[Ruler]] instance. Second ruler used for post-processing
|
|
* (e.g. in emphasis-like rules).
|
|
**/ this.ruler2 = new Ruler;
|
|
for (let i = 0; i < _rules2.length; i++) {
|
|
this.ruler2.push(_rules2[i][0], _rules2[i][1]);
|
|
}
|
|
}
|
|
// Skip single token by running all rules in validation mode;
|
|
// returns `true` if any rule reported success
|
|
|
|
ParserInline.prototype.skipToken = function(state) {
|
|
const pos = state.pos;
|
|
const rules = this.ruler.getRules("");
|
|
const len = rules.length;
|
|
const maxNesting = state.md.options.maxNesting;
|
|
const cache = state.cache;
|
|
if (typeof cache[pos] !== "undefined") {
|
|
state.pos = cache[pos];
|
|
return;
|
|
}
|
|
let ok = false;
|
|
if (state.level < maxNesting) {
|
|
for (let i = 0; i < len; i++) {
|
|
// Increment state.level and decrement it later to limit recursion.
|
|
// It's harmless to do here, because no tokens are created. But ideally,
|
|
// we'd need a separate private state variable for this purpose.
|
|
state.level++;
|
|
ok = rules[i](state, true);
|
|
state.level--;
|
|
if (ok) {
|
|
if (pos >= state.pos) {
|
|
throw new Error("inline rule didn't increment state.pos");
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
// Too much nesting, just skip until the end of the paragraph.
|
|
// NOTE: this will cause links to behave incorrectly in the following case,
|
|
// when an amount of `[` is exactly equal to `maxNesting + 1`:
|
|
// [[[[[[[[[[[[[[[[[[[[[foo]()
|
|
// TODO: remove this workaround when CM standard will allow nested links
|
|
// (we can replace it by preventing links from being parsed in
|
|
// validation mode)
|
|
state.pos = state.posMax;
|
|
}
|
|
if (!ok) {
|
|
state.pos++;
|
|
}
|
|
cache[pos] = state.pos;
|
|
};
|
|
// Generate tokens for input range
|
|
|
|
ParserInline.prototype.tokenize = function(state) {
|
|
const rules = this.ruler.getRules("");
|
|
const len = rules.length;
|
|
const end = state.posMax;
|
|
const maxNesting = state.md.options.maxNesting;
|
|
while (state.pos < end) {
|
|
// Try all possible rules.
|
|
// On success, rule should:
|
|
// - update `state.pos`
|
|
// - update `state.tokens`
|
|
// - return true
|
|
const prevPos = state.pos;
|
|
let ok = false;
|
|
if (state.level < maxNesting) {
|
|
for (let i = 0; i < len; i++) {
|
|
ok = rules[i](state, false);
|
|
if (ok) {
|
|
if (prevPos >= state.pos) {
|
|
throw new Error("inline rule didn't increment state.pos");
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (ok) {
|
|
if (state.pos >= end) {
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
state.pending += state.src[state.pos++];
|
|
}
|
|
if (state.pending) {
|
|
state.pushPending();
|
|
}
|
|
};
|
|
/**
|
|
* ParserInline.parse(str, md, env, outTokens)
|
|
*
|
|
* Process input string and push inline tokens into `outTokens`
|
|
**/ ParserInline.prototype.parse = function(str, md, env, outTokens) {
|
|
const state = new this.State(str, md, env, outTokens);
|
|
this.tokenize(state);
|
|
const rules = this.ruler2.getRules("");
|
|
const len = rules.length;
|
|
for (let i = 0; i < len; i++) {
|
|
rules[i](state);
|
|
}
|
|
};
|
|
ParserInline.prototype.State = StateInline;
|
|
var re;
|
|
var hasRequiredRe;
|
|
function requireRe() {
|
|
if (hasRequiredRe) return re;
|
|
hasRequiredRe = 1;
|
|
re = function(opts) {
|
|
var re = {};
|
|
opts = opts || {};
|
|
// Use direct extract instead of `regenerate` to reduse browserified size
|
|
re.src_Any = regex$4.source;
|
|
re.src_Cc = regex$3.source;
|
|
re.src_Z = regex.source;
|
|
re.src_P = regex$1.source;
|
|
// \p{\Z\P\Cc\CF} (white spaces + control + format + punctuation)
|
|
re.src_ZPCc = [ re.src_Z, re.src_P, re.src_Cc ].join("|");
|
|
// \p{\Z\Cc} (white spaces + control)
|
|
re.src_ZCc = [ re.src_Z, re.src_Cc ].join("|");
|
|
// Experimental. List of chars, completely prohibited in links
|
|
// because can separate it from other part of text
|
|
var text_separators = "[><\uff5c]";
|
|
// All possible word characters (everything without punctuation, spaces & controls)
|
|
// Defined via punctuation & spaces to save space
|
|
// Should be something like \p{\L\N\S\M} (\w but without `_`)
|
|
re.src_pseudo_letter = "(?:(?!" + text_separators + "|" + re.src_ZPCc + ")" + re.src_Any + ")";
|
|
// The same as abothe but without [0-9]
|
|
// var src_pseudo_letter_non_d = '(?:(?![0-9]|' + src_ZPCc + ')' + src_Any + ')';
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
re.src_ip4 = "(?:(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)";
|
|
// Prohibit any of "@/[]()" in user/pass to avoid wrong domain fetch.
|
|
re.src_auth = "(?:(?:(?!" + re.src_ZCc + "|[@/\\[\\]()]).)+@)?";
|
|
re.src_port = "(?::(?:6(?:[0-4]\\d{3}|5(?:[0-4]\\d{2}|5(?:[0-2]\\d|3[0-5])))|[1-5]?\\d{1,4}))?";
|
|
re.src_host_terminator = "(?=$|" + text_separators + "|" + re.src_ZPCc + ")" + "(?!" + (opts["---"] ? "-(?!--)|" : "-|") + "_|:\\d|\\.-|\\.(?!$|" + re.src_ZPCc + "))";
|
|
re.src_path = "(?:" + "[/?#]" + "(?:" + "(?!" + re.src_ZCc + "|" + text_separators + "|[()[\\]{}.,\"'?!\\-;]).|" + "\\[(?:(?!" + re.src_ZCc + "|\\]).)*\\]|" + "\\((?:(?!" + re.src_ZCc + "|[)]).)*\\)|" + "\\{(?:(?!" + re.src_ZCc + "|[}]).)*\\}|" + '\\"(?:(?!' + re.src_ZCc + '|["]).)+\\"|' + "\\'(?:(?!" + re.src_ZCc + "|[']).)+\\'|" + "\\'(?=" + re.src_pseudo_letter + "|[-])|" +
|
|
// allow `I'm_king` if no pair found
|
|
"\\.{2,}[a-zA-Z0-9%/&]|" +
|
|
// google has many dots in "google search" links (#66, #81).
|
|
// github has ... in commit range links,
|
|
// Restrict to
|
|
// - english
|
|
// - percent-encoded
|
|
// - parts of file path
|
|
// - params separator
|
|
// until more examples found.
|
|
"\\.(?!" + re.src_ZCc + "|[.]|$)|" + (opts["---"] ? "\\-(?!--(?:[^-]|$))(?:-*)|" : "\\-+|") + ",(?!" + re.src_ZCc + "|$)|" +
|
|
// allow `,,,` in paths
|
|
";(?!" + re.src_ZCc + "|$)|" +
|
|
// allow `;` if not followed by space-like char
|
|
"\\!+(?!" + re.src_ZCc + "|[!]|$)|" +
|
|
// allow `!!!` in paths, but not at the end
|
|
"\\?(?!" + re.src_ZCc + "|[?]|$)" + ")+" + "|\\/" + ")?";
|
|
// Allow anything in markdown spec, forbid quote (") at the first position
|
|
// because emails enclosed in quotes are far more common
|
|
re.src_email_name = '[\\-;:&=\\+\\$,\\.a-zA-Z0-9_][\\-;:&=\\+\\$,\\"\\.a-zA-Z0-9_]*';
|
|
re.src_xn = "xn--[a-z0-9\\-]{1,59}";
|
|
// More to read about domain names
|
|
// http://serverfault.com/questions/638260/
|
|
re.src_domain_root =
|
|
// Allow letters & digits (http://test1)
|
|
"(?:" + re.src_xn + "|" + re.src_pseudo_letter + "{1,63}" + ")";
|
|
re.src_domain = "(?:" + re.src_xn + "|" + "(?:" + re.src_pseudo_letter + ")" + "|" + "(?:" + re.src_pseudo_letter + "(?:-|" + re.src_pseudo_letter + "){0,61}" + re.src_pseudo_letter + ")" + ")";
|
|
re.src_host = "(?:" +
|
|
// Don't need IP check, because digits are already allowed in normal domain names
|
|
// src_ip4 +
|
|
// '|' +
|
|
"(?:(?:(?:" + re.src_domain + ")\\.)*" + re.src_domain /*_root*/ + ")" + ")";
|
|
re.tpl_host_fuzzy = "(?:" + re.src_ip4 + "|" + "(?:(?:(?:" + re.src_domain + ")\\.)+(?:%TLDS%))" + ")";
|
|
re.tpl_host_no_ip_fuzzy = "(?:(?:(?:" + re.src_domain + ")\\.)+(?:%TLDS%))";
|
|
re.src_host_strict = re.src_host + re.src_host_terminator;
|
|
re.tpl_host_fuzzy_strict = re.tpl_host_fuzzy + re.src_host_terminator;
|
|
re.src_host_port_strict = re.src_host + re.src_port + re.src_host_terminator;
|
|
re.tpl_host_port_fuzzy_strict = re.tpl_host_fuzzy + re.src_port + re.src_host_terminator;
|
|
re.tpl_host_port_no_ip_fuzzy_strict = re.tpl_host_no_ip_fuzzy + re.src_port + re.src_host_terminator;
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Main rules
|
|
// Rude test fuzzy links by host, for quick deny
|
|
re.tpl_host_fuzzy_test = "localhost|www\\.|\\.\\d{1,3}\\.|(?:\\.(?:%TLDS%)(?:" + re.src_ZPCc + "|>|$))";
|
|
re.tpl_email_fuzzy = "(^|" + text_separators + '|"|\\(|' + re.src_ZCc + ")" + "(" + re.src_email_name + "@" + re.tpl_host_fuzzy_strict + ")";
|
|
re.tpl_link_fuzzy =
|
|
// Fuzzy link can't be prepended with .:/\- and non punctuation.
|
|
// but can start with > (markdown blockquote)
|
|
"(^|(?![.:/\\-_@])(?:[$+<=>^`|\uff5c]|" + re.src_ZPCc + "))" + "((?![$+<=>^`|\uff5c])" + re.tpl_host_port_fuzzy_strict + re.src_path + ")";
|
|
re.tpl_link_no_ip_fuzzy =
|
|
// Fuzzy link can't be prepended with .:/\- and non punctuation.
|
|
// but can start with > (markdown blockquote)
|
|
"(^|(?![.:/\\-_@])(?:[$+<=>^`|\uff5c]|" + re.src_ZPCc + "))" + "((?![$+<=>^`|\uff5c])" + re.tpl_host_port_no_ip_fuzzy_strict + re.src_path + ")";
|
|
return re;
|
|
};
|
|
return re;
|
|
}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Helpers
|
|
// Merge objects
|
|
|
|
function assign(obj /*from1, from2, from3, ...*/) {
|
|
var sources = Array.prototype.slice.call(arguments, 1);
|
|
sources.forEach((function(source) {
|
|
if (!source) {
|
|
return;
|
|
}
|
|
Object.keys(source).forEach((function(key) {
|
|
obj[key] = source[key];
|
|
}));
|
|
}));
|
|
return obj;
|
|
}
|
|
function _class(obj) {
|
|
return Object.prototype.toString.call(obj);
|
|
}
|
|
function isString(obj) {
|
|
return _class(obj) === "[object String]";
|
|
}
|
|
function isObject(obj) {
|
|
return _class(obj) === "[object Object]";
|
|
}
|
|
function isRegExp(obj) {
|
|
return _class(obj) === "[object RegExp]";
|
|
}
|
|
function isFunction(obj) {
|
|
return _class(obj) === "[object Function]";
|
|
}
|
|
function escapeRE(str) {
|
|
return str.replace(/[.?*+^$[\]\\(){}|-]/g, "\\$&");
|
|
}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
var defaultOptions = {
|
|
fuzzyLink: true,
|
|
fuzzyEmail: true,
|
|
fuzzyIP: false
|
|
};
|
|
function isOptionsObj(obj) {
|
|
return Object.keys(obj || {}).reduce((function(acc, k) {
|
|
return acc || defaultOptions.hasOwnProperty(k);
|
|
}), false);
|
|
}
|
|
var defaultSchemas = {
|
|
"http:": {
|
|
validate: function(text, pos, self) {
|
|
var tail = text.slice(pos);
|
|
if (!self.re.http) {
|
|
// compile lazily, because "host"-containing variables can change on tlds update.
|
|
self.re.http = new RegExp("^\\/\\/" + self.re.src_auth + self.re.src_host_port_strict + self.re.src_path, "i");
|
|
}
|
|
if (self.re.http.test(tail)) {
|
|
return tail.match(self.re.http)[0].length;
|
|
}
|
|
return 0;
|
|
}
|
|
},
|
|
"https:": "http:",
|
|
"ftp:": "http:",
|
|
"//": {
|
|
validate: function(text, pos, self) {
|
|
var tail = text.slice(pos);
|
|
if (!self.re.no_http) {
|
|
// compile lazily, because "host"-containing variables can change on tlds update.
|
|
self.re.no_http = new RegExp("^" + self.re.src_auth +
|
|
// Don't allow single-level domains, because of false positives like '//test'
|
|
// with code comments
|
|
"(?:localhost|(?:(?:" + self.re.src_domain + ")\\.)+" + self.re.src_domain_root + ")" + self.re.src_port + self.re.src_host_terminator + self.re.src_path, "i");
|
|
}
|
|
if (self.re.no_http.test(tail)) {
|
|
// should not be `://` & `///`, that protects from errors in protocol name
|
|
if (pos >= 3 && text[pos - 3] === ":") {
|
|
return 0;
|
|
}
|
|
if (pos >= 3 && text[pos - 3] === "/") {
|
|
return 0;
|
|
}
|
|
return tail.match(self.re.no_http)[0].length;
|
|
}
|
|
return 0;
|
|
}
|
|
},
|
|
"mailto:": {
|
|
validate: function(text, pos, self) {
|
|
var tail = text.slice(pos);
|
|
if (!self.re.mailto) {
|
|
self.re.mailto = new RegExp("^" + self.re.src_email_name + "@" + self.re.src_host_strict, "i");
|
|
}
|
|
if (self.re.mailto.test(tail)) {
|
|
return tail.match(self.re.mailto)[0].length;
|
|
}
|
|
return 0;
|
|
}
|
|
}
|
|
};
|
|
/*eslint-disable max-len*/
|
|
// RE pattern for 2-character tlds (autogenerated by ./support/tlds_2char_gen.js)
|
|
var tlds_2ch_src_re = "a[cdefgilmnoqrstuwxz]|b[abdefghijmnorstvwyz]|c[acdfghiklmnoruvwxyz]|d[ejkmoz]|e[cegrstu]|f[ijkmor]|g[abdefghilmnpqrstuwy]|h[kmnrtu]|i[delmnoqrst]|j[emop]|k[eghimnprwyz]|l[abcikrstuvy]|m[acdeghklmnopqrstuvwxyz]|n[acefgilopruz]|om|p[aefghklmnrstwy]|qa|r[eosuw]|s[abcdeghijklmnortuvxyz]|t[cdfghjklmnortvwz]|u[agksyz]|v[aceginu]|w[fs]|y[et]|z[amw]";
|
|
// DON'T try to make PRs with changes. Extend TLDs with LinkifyIt.tlds() instead
|
|
var tlds_default = "biz|com|edu|gov|net|org|pro|web|xxx|aero|asia|coop|info|museum|name|shop|\u0440\u0444".split("|");
|
|
/*eslint-enable max-len*/
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
function resetScanCache(self) {
|
|
self.__index__ = -1;
|
|
self.__text_cache__ = "";
|
|
}
|
|
function createValidator(re) {
|
|
return function(text, pos) {
|
|
var tail = text.slice(pos);
|
|
if (re.test(tail)) {
|
|
return tail.match(re)[0].length;
|
|
}
|
|
return 0;
|
|
};
|
|
}
|
|
function createNormalizer() {
|
|
return function(match, self) {
|
|
self.normalize(match);
|
|
};
|
|
}
|
|
// Schemas compiler. Build regexps.
|
|
|
|
function compile(self) {
|
|
// Load & clone RE patterns.
|
|
var re = self.re = requireRe()(self.__opts__);
|
|
// Define dynamic patterns
|
|
var tlds = self.__tlds__.slice();
|
|
self.onCompile();
|
|
if (!self.__tlds_replaced__) {
|
|
tlds.push(tlds_2ch_src_re);
|
|
}
|
|
tlds.push(re.src_xn);
|
|
re.src_tlds = tlds.join("|");
|
|
function untpl(tpl) {
|
|
return tpl.replace("%TLDS%", re.src_tlds);
|
|
}
|
|
re.email_fuzzy = RegExp(untpl(re.tpl_email_fuzzy), "i");
|
|
re.link_fuzzy = RegExp(untpl(re.tpl_link_fuzzy), "i");
|
|
re.link_no_ip_fuzzy = RegExp(untpl(re.tpl_link_no_ip_fuzzy), "i");
|
|
re.host_fuzzy_test = RegExp(untpl(re.tpl_host_fuzzy_test), "i");
|
|
|
|
// Compile each schema
|
|
|
|
var aliases = [];
|
|
self.__compiled__ = {};
|
|
// Reset compiled data
|
|
function schemaError(name, val) {
|
|
throw new Error('(LinkifyIt) Invalid schema "' + name + '": ' + val);
|
|
}
|
|
Object.keys(self.__schemas__).forEach((function(name) {
|
|
var val = self.__schemas__[name];
|
|
// skip disabled methods
|
|
if (val === null) {
|
|
return;
|
|
}
|
|
var compiled = {
|
|
validate: null,
|
|
link: null
|
|
};
|
|
self.__compiled__[name] = compiled;
|
|
if (isObject(val)) {
|
|
if (isRegExp(val.validate)) {
|
|
compiled.validate = createValidator(val.validate);
|
|
} else if (isFunction(val.validate)) {
|
|
compiled.validate = val.validate;
|
|
} else {
|
|
schemaError(name, val);
|
|
}
|
|
if (isFunction(val.normalize)) {
|
|
compiled.normalize = val.normalize;
|
|
} else if (!val.normalize) {
|
|
compiled.normalize = createNormalizer();
|
|
} else {
|
|
schemaError(name, val);
|
|
}
|
|
return;
|
|
}
|
|
if (isString(val)) {
|
|
aliases.push(name);
|
|
return;
|
|
}
|
|
schemaError(name, val);
|
|
}));
|
|
|
|
// Compile postponed aliases
|
|
|
|
aliases.forEach((function(alias) {
|
|
if (!self.__compiled__[self.__schemas__[alias]]) {
|
|
// Silently fail on missed schemas to avoid errons on disable.
|
|
// schemaError(alias, self.__schemas__[alias]);
|
|
return;
|
|
}
|
|
self.__compiled__[alias].validate = self.__compiled__[self.__schemas__[alias]].validate;
|
|
self.__compiled__[alias].normalize = self.__compiled__[self.__schemas__[alias]].normalize;
|
|
}));
|
|
|
|
// Fake record for guessed links
|
|
|
|
self.__compiled__[""] = {
|
|
validate: null,
|
|
normalize: createNormalizer()
|
|
};
|
|
|
|
// Build schema condition
|
|
|
|
var slist = Object.keys(self.__compiled__).filter((function(name) {
|
|
// Filter disabled & fake schemas
|
|
return name.length > 0 && self.__compiled__[name];
|
|
})).map(escapeRE).join("|");
|
|
// (?!_) cause 1.5x slowdown
|
|
self.re.schema_test = RegExp("(^|(?!_)(?:[><\uff5c]|" + re.src_ZPCc + "))(" + slist + ")", "i");
|
|
self.re.schema_search = RegExp("(^|(?!_)(?:[><\uff5c]|" + re.src_ZPCc + "))(" + slist + ")", "ig");
|
|
self.re.schema_at_start = RegExp("^" + self.re.schema_search.source, "i");
|
|
self.re.pretest = RegExp("(" + self.re.schema_test.source + ")|(" + self.re.host_fuzzy_test.source + ")|@", "i");
|
|
|
|
// Cleanup
|
|
|
|
resetScanCache(self);
|
|
}
|
|
/**
|
|
* class Match
|
|
*
|
|
* Match result. Single element of array, returned by [[LinkifyIt#match]]
|
|
**/ function Match(self, shift) {
|
|
var start = self.__index__, end = self.__last_index__, text = self.__text_cache__.slice(start, end);
|
|
/**
|
|
* Match#schema -> String
|
|
*
|
|
* Prefix (protocol) for matched string.
|
|
**/ this.schema = self.__schema__.toLowerCase();
|
|
/**
|
|
* Match#index -> Number
|
|
*
|
|
* First position of matched string.
|
|
**/ this.index = start + shift;
|
|
/**
|
|
* Match#lastIndex -> Number
|
|
*
|
|
* Next position after matched string.
|
|
**/ this.lastIndex = end + shift;
|
|
/**
|
|
* Match#raw -> String
|
|
*
|
|
* Matched string.
|
|
**/ this.raw = text;
|
|
/**
|
|
* Match#text -> String
|
|
*
|
|
* Notmalized text of matched string.
|
|
**/ this.text = text;
|
|
/**
|
|
* Match#url -> String
|
|
*
|
|
* Normalized url of matched string.
|
|
**/ this.url = text;
|
|
}
|
|
function createMatch(self, shift) {
|
|
var match = new Match(self, shift);
|
|
self.__compiled__[match.schema].normalize(match, self);
|
|
return match;
|
|
}
|
|
/**
|
|
* class LinkifyIt
|
|
**/
|
|
/**
|
|
* new LinkifyIt(schemas, options)
|
|
* - schemas (Object): Optional. Additional schemas to validate (prefix/validator)
|
|
* - options (Object): { fuzzyLink|fuzzyEmail|fuzzyIP: true|false }
|
|
*
|
|
* Creates new linkifier instance with optional additional schemas.
|
|
* Can be called without `new` keyword for convenience.
|
|
*
|
|
* By default understands:
|
|
*
|
|
* - `http(s)://...` , `ftp://...`, `mailto:...` & `//...` links
|
|
* - "fuzzy" links and emails (example.com, foo@bar.com).
|
|
*
|
|
* `schemas` is an object, where each key/value describes protocol/rule:
|
|
*
|
|
* - __key__ - link prefix (usually, protocol name with `:` at the end, `skype:`
|
|
* for example). `linkify-it` makes shure that prefix is not preceeded with
|
|
* alphanumeric char and symbols. Only whitespaces and punctuation allowed.
|
|
* - __value__ - rule to check tail after link prefix
|
|
* - _String_ - just alias to existing rule
|
|
* - _Object_
|
|
* - _validate_ - validator function (should return matched length on success),
|
|
* or `RegExp`.
|
|
* - _normalize_ - optional function to normalize text & url of matched result
|
|
* (for example, for @twitter mentions).
|
|
*
|
|
* `options`:
|
|
*
|
|
* - __fuzzyLink__ - recognige URL-s without `http(s):` prefix. Default `true`.
|
|
* - __fuzzyIP__ - allow IPs in fuzzy links above. Can conflict with some texts
|
|
* like version numbers. Default `false`.
|
|
* - __fuzzyEmail__ - recognize emails without `mailto:` prefix.
|
|
*
|
|
**/ function LinkifyIt(schemas, options) {
|
|
if (!(this instanceof LinkifyIt)) {
|
|
return new LinkifyIt(schemas, options);
|
|
}
|
|
if (!options) {
|
|
if (isOptionsObj(schemas)) {
|
|
options = schemas;
|
|
schemas = {};
|
|
}
|
|
}
|
|
this.__opts__ = assign({}, defaultOptions, options);
|
|
// Cache last tested result. Used to skip repeating steps on next `match` call.
|
|
this.__index__ = -1;
|
|
this.__last_index__ = -1;
|
|
// Next scan position
|
|
this.__schema__ = "";
|
|
this.__text_cache__ = "";
|
|
this.__schemas__ = assign({}, defaultSchemas, schemas);
|
|
this.__compiled__ = {};
|
|
this.__tlds__ = tlds_default;
|
|
this.__tlds_replaced__ = false;
|
|
this.re = {};
|
|
compile(this);
|
|
}
|
|
/** chainable
|
|
* LinkifyIt#add(schema, definition)
|
|
* - schema (String): rule name (fixed pattern prefix)
|
|
* - definition (String|RegExp|Object): schema definition
|
|
*
|
|
* Add new rule definition. See constructor description for details.
|
|
**/ LinkifyIt.prototype.add = function add(schema, definition) {
|
|
this.__schemas__[schema] = definition;
|
|
compile(this);
|
|
return this;
|
|
};
|
|
/** chainable
|
|
* LinkifyIt#set(options)
|
|
* - options (Object): { fuzzyLink|fuzzyEmail|fuzzyIP: true|false }
|
|
*
|
|
* Set recognition options for links without schema.
|
|
**/ LinkifyIt.prototype.set = function set(options) {
|
|
this.__opts__ = assign(this.__opts__, options);
|
|
return this;
|
|
};
|
|
/**
|
|
* LinkifyIt#test(text) -> Boolean
|
|
*
|
|
* Searches linkifiable pattern and returns `true` on success or `false` on fail.
|
|
**/ LinkifyIt.prototype.test = function test(text) {
|
|
// Reset scan cache
|
|
this.__text_cache__ = text;
|
|
this.__index__ = -1;
|
|
if (!text.length) {
|
|
return false;
|
|
}
|
|
var m, ml, me, len, shift, next, re, tld_pos, at_pos;
|
|
// try to scan for link with schema - that's the most simple rule
|
|
if (this.re.schema_test.test(text)) {
|
|
re = this.re.schema_search;
|
|
re.lastIndex = 0;
|
|
while ((m = re.exec(text)) !== null) {
|
|
len = this.testSchemaAt(text, m[2], re.lastIndex);
|
|
if (len) {
|
|
this.__schema__ = m[2];
|
|
this.__index__ = m.index + m[1].length;
|
|
this.__last_index__ = m.index + m[0].length + len;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (this.__opts__.fuzzyLink && this.__compiled__["http:"]) {
|
|
// guess schemaless links
|
|
tld_pos = text.search(this.re.host_fuzzy_test);
|
|
if (tld_pos >= 0) {
|
|
// if tld is located after found link - no need to check fuzzy pattern
|
|
if (this.__index__ < 0 || tld_pos < this.__index__) {
|
|
if ((ml = text.match(this.__opts__.fuzzyIP ? this.re.link_fuzzy : this.re.link_no_ip_fuzzy)) !== null) {
|
|
shift = ml.index + ml[1].length;
|
|
if (this.__index__ < 0 || shift < this.__index__) {
|
|
this.__schema__ = "";
|
|
this.__index__ = shift;
|
|
this.__last_index__ = ml.index + ml[0].length;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (this.__opts__.fuzzyEmail && this.__compiled__["mailto:"]) {
|
|
// guess schemaless emails
|
|
at_pos = text.indexOf("@");
|
|
if (at_pos >= 0) {
|
|
// We can't skip this check, because this cases are possible:
|
|
// 192.168.1.1@gmail.com, my.in@example.com
|
|
if ((me = text.match(this.re.email_fuzzy)) !== null) {
|
|
shift = me.index + me[1].length;
|
|
next = me.index + me[0].length;
|
|
if (this.__index__ < 0 || shift < this.__index__ || shift === this.__index__ && next > this.__last_index__) {
|
|
this.__schema__ = "mailto:";
|
|
this.__index__ = shift;
|
|
this.__last_index__ = next;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return this.__index__ >= 0;
|
|
};
|
|
/**
|
|
* LinkifyIt#pretest(text) -> Boolean
|
|
*
|
|
* Very quick check, that can give false positives. Returns true if link MAY BE
|
|
* can exists. Can be used for speed optimization, when you need to check that
|
|
* link NOT exists.
|
|
**/ LinkifyIt.prototype.pretest = function pretest(text) {
|
|
return this.re.pretest.test(text);
|
|
};
|
|
/**
|
|
* LinkifyIt#testSchemaAt(text, name, position) -> Number
|
|
* - text (String): text to scan
|
|
* - name (String): rule (schema) name
|
|
* - position (Number): text offset to check from
|
|
*
|
|
* Similar to [[LinkifyIt#test]] but checks only specific protocol tail exactly
|
|
* at given position. Returns length of found pattern (0 on fail).
|
|
**/ LinkifyIt.prototype.testSchemaAt = function testSchemaAt(text, schema, pos) {
|
|
// If not supported schema check requested - terminate
|
|
if (!this.__compiled__[schema.toLowerCase()]) {
|
|
return 0;
|
|
}
|
|
return this.__compiled__[schema.toLowerCase()].validate(text, pos, this);
|
|
};
|
|
/**
|
|
* LinkifyIt#match(text) -> Array|null
|
|
*
|
|
* Returns array of found link descriptions or `null` on fail. We strongly
|
|
* recommend to use [[LinkifyIt#test]] first, for best speed.
|
|
*
|
|
* ##### Result match description
|
|
*
|
|
* - __schema__ - link schema, can be empty for fuzzy links, or `//` for
|
|
* protocol-neutral links.
|
|
* - __index__ - offset of matched text
|
|
* - __lastIndex__ - index of next char after mathch end
|
|
* - __raw__ - matched text
|
|
* - __text__ - normalized text
|
|
* - __url__ - link, generated from matched text
|
|
**/ LinkifyIt.prototype.match = function match(text) {
|
|
var shift = 0, result = [];
|
|
// Try to take previous element from cache, if .test() called before
|
|
if (this.__index__ >= 0 && this.__text_cache__ === text) {
|
|
result.push(createMatch(this, shift));
|
|
shift = this.__last_index__;
|
|
}
|
|
// Cut head if cache was used
|
|
var tail = shift ? text.slice(shift) : text;
|
|
// Scan string until end reached
|
|
while (this.test(tail)) {
|
|
result.push(createMatch(this, shift));
|
|
tail = tail.slice(this.__last_index__);
|
|
shift += this.__last_index__;
|
|
}
|
|
if (result.length) {
|
|
return result;
|
|
}
|
|
return null;
|
|
};
|
|
/**
|
|
* LinkifyIt#matchAtStart(text) -> Match|null
|
|
*
|
|
* Returns fully-formed (not fuzzy) link if it starts at the beginning
|
|
* of the string, and null otherwise.
|
|
**/ LinkifyIt.prototype.matchAtStart = function matchAtStart(text) {
|
|
// Reset scan cache
|
|
this.__text_cache__ = text;
|
|
this.__index__ = -1;
|
|
if (!text.length) return null;
|
|
var m = this.re.schema_at_start.exec(text);
|
|
if (!m) return null;
|
|
var len = this.testSchemaAt(text, m[2], m[0].length);
|
|
if (!len) return null;
|
|
this.__schema__ = m[2];
|
|
this.__index__ = m.index + m[1].length;
|
|
this.__last_index__ = m.index + m[0].length + len;
|
|
return createMatch(this, 0);
|
|
};
|
|
/** chainable
|
|
* LinkifyIt#tlds(list [, keepOld]) -> this
|
|
* - list (Array): list of tlds
|
|
* - keepOld (Boolean): merge with current list if `true` (`false` by default)
|
|
*
|
|
* Load (or merge) new tlds list. Those are user for fuzzy links (without prefix)
|
|
* to avoid false positives. By default this algorythm used:
|
|
*
|
|
* - hostname with any 2-letter root zones are ok.
|
|
* - biz|com|edu|gov|net|org|pro|web|xxx|aero|asia|coop|info|museum|name|shop|рф
|
|
* are ok.
|
|
* - encoded (`xn--...`) root zones are ok.
|
|
*
|
|
* If list is replaced, then exact match for 2-chars root zones will be checked.
|
|
**/ LinkifyIt.prototype.tlds = function tlds(list, keepOld) {
|
|
list = Array.isArray(list) ? list : [ list ];
|
|
if (!keepOld) {
|
|
this.__tlds__ = list.slice();
|
|
this.__tlds_replaced__ = true;
|
|
compile(this);
|
|
return this;
|
|
}
|
|
this.__tlds__ = this.__tlds__.concat(list).sort().filter((function(el, idx, arr) {
|
|
return el !== arr[idx - 1];
|
|
})).reverse();
|
|
compile(this);
|
|
return this;
|
|
};
|
|
/**
|
|
* LinkifyIt#normalize(match)
|
|
*
|
|
* Default normalizer (if schema does not define it's own).
|
|
**/ LinkifyIt.prototype.normalize = function normalize(match) {
|
|
// Do minimal possible changes by default. Need to collect feedback prior
|
|
// to move forward https://github.com/markdown-it/linkify-it/issues/1
|
|
if (!match.schema) {
|
|
match.url = "http://" + match.url;
|
|
}
|
|
if (match.schema === "mailto:" && !/^mailto:/i.test(match.url)) {
|
|
match.url = "mailto:" + match.url;
|
|
}
|
|
};
|
|
/**
|
|
* LinkifyIt#onCompile()
|
|
*
|
|
* Override to modify basic RegExp-s.
|
|
**/ LinkifyIt.prototype.onCompile = function onCompile() {};
|
|
var linkifyIt = LinkifyIt;
|
|
var LinkifyIt$1 = getDefaultExportFromCjs(linkifyIt);
|
|
/** Highest positive signed 32-bit float value */ const maxInt = 2147483647;
|
|
// aka. 0x7FFFFFFF or 2^31-1
|
|
/** Bootstring parameters */ const base = 36;
|
|
const tMin = 1;
|
|
const tMax = 26;
|
|
const skew = 38;
|
|
const damp = 700;
|
|
const initialBias = 72;
|
|
const initialN = 128;
|
|
// 0x80
|
|
const delimiter = "-";
|
|
// '\x2D'
|
|
/** Regular expressions */ const regexPunycode = /^xn--/;
|
|
const regexNonASCII = /[^\0-\x7F]/;
|
|
// Note: U+007F DEL is excluded too.
|
|
const regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g;
|
|
// RFC 3490 separators
|
|
/** Error messages */ const errors = {
|
|
overflow: "Overflow: input needs wider integers to process",
|
|
"not-basic": "Illegal input >= 0x80 (not a basic code point)",
|
|
"invalid-input": "Invalid input"
|
|
};
|
|
/** Convenience shortcuts */ const baseMinusTMin = base - tMin;
|
|
const floor = Math.floor;
|
|
const stringFromCharCode = String.fromCharCode;
|
|
/*--------------------------------------------------------------------------*/
|
|
/**
|
|
* A generic error utility function.
|
|
* @private
|
|
* @param {String} type The error type.
|
|
* @returns {Error} Throws a `RangeError` with the applicable error message.
|
|
*/ function error(type) {
|
|
throw new RangeError(errors[type]);
|
|
}
|
|
/**
|
|
* A generic `Array#map` utility function.
|
|
* @private
|
|
* @param {Array} array The array to iterate over.
|
|
* @param {Function} callback The function that gets called for every array
|
|
* item.
|
|
* @returns {Array} A new array of values returned by the callback function.
|
|
*/ function map(array, callback) {
|
|
const result = [];
|
|
let length = array.length;
|
|
while (length--) {
|
|
result[length] = callback(array[length]);
|
|
}
|
|
return result;
|
|
}
|
|
/**
|
|
* A simple `Array#map`-like wrapper to work with domain name strings or email
|
|
* addresses.
|
|
* @private
|
|
* @param {String} domain The domain name or email address.
|
|
* @param {Function} callback The function that gets called for every
|
|
* character.
|
|
* @returns {String} A new string of characters returned by the callback
|
|
* function.
|
|
*/ function mapDomain(domain, callback) {
|
|
const parts = domain.split("@");
|
|
let result = "";
|
|
if (parts.length > 1) {
|
|
// In email addresses, only the domain name should be punycoded. Leave
|
|
// the local part (i.e. everything up to `@`) intact.
|
|
result = parts[0] + "@";
|
|
domain = parts[1];
|
|
}
|
|
// Avoid `split(regex)` for IE8 compatibility. See #17.
|
|
domain = domain.replace(regexSeparators, ".");
|
|
const labels = domain.split(".");
|
|
const encoded = map(labels, callback).join(".");
|
|
return result + encoded;
|
|
}
|
|
/**
|
|
* Creates an array containing the numeric code points of each Unicode
|
|
* character in the string. While JavaScript uses UCS-2 internally,
|
|
* this function will convert a pair of surrogate halves (each of which
|
|
* UCS-2 exposes as separate characters) into a single code point,
|
|
* matching UTF-16.
|
|
* @see `punycode.ucs2.encode`
|
|
* @see <https://mathiasbynens.be/notes/javascript-encoding>
|
|
* @memberOf punycode.ucs2
|
|
* @name decode
|
|
* @param {String} string The Unicode input string (UCS-2).
|
|
* @returns {Array} The new array of code points.
|
|
*/ function ucs2decode(string) {
|
|
const output = [];
|
|
let counter = 0;
|
|
const length = string.length;
|
|
while (counter < length) {
|
|
const value = string.charCodeAt(counter++);
|
|
if (value >= 55296 && value <= 56319 && counter < length) {
|
|
// It's a high surrogate, and there is a next character.
|
|
const extra = string.charCodeAt(counter++);
|
|
if ((extra & 64512) == 56320) {
|
|
// Low surrogate.
|
|
output.push(((value & 1023) << 10) + (extra & 1023) + 65536);
|
|
} else {
|
|
// It's an unmatched surrogate; only append this code unit, in case the
|
|
// next code unit is the high surrogate of a surrogate pair.
|
|
output.push(value);
|
|
counter--;
|
|
}
|
|
} else {
|
|
output.push(value);
|
|
}
|
|
}
|
|
return output;
|
|
}
|
|
/**
|
|
* Creates a string based on an array of numeric code points.
|
|
* @see `punycode.ucs2.decode`
|
|
* @memberOf punycode.ucs2
|
|
* @name encode
|
|
* @param {Array} codePoints The array of numeric code points.
|
|
* @returns {String} The new Unicode string (UCS-2).
|
|
*/ const ucs2encode = codePoints => String.fromCodePoint(...codePoints)
|
|
/**
|
|
* Converts a basic code point into a digit/integer.
|
|
* @see `digitToBasic()`
|
|
* @private
|
|
* @param {Number} codePoint The basic numeric code point value.
|
|
* @returns {Number} The numeric value of a basic code point (for use in
|
|
* representing integers) in the range `0` to `base - 1`, or `base` if
|
|
* the code point does not represent a value.
|
|
*/;
|
|
const basicToDigit = function(codePoint) {
|
|
if (codePoint >= 48 && codePoint < 58) {
|
|
return 26 + (codePoint - 48);
|
|
}
|
|
if (codePoint >= 65 && codePoint < 91) {
|
|
return codePoint - 65;
|
|
}
|
|
if (codePoint >= 97 && codePoint < 123) {
|
|
return codePoint - 97;
|
|
}
|
|
return base;
|
|
};
|
|
/**
|
|
* Converts a digit/integer into a basic code point.
|
|
* @see `basicToDigit()`
|
|
* @private
|
|
* @param {Number} digit The numeric value of a basic code point.
|
|
* @returns {Number} The basic code point whose value (when used for
|
|
* representing integers) is `digit`, which needs to be in the range
|
|
* `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
|
|
* used; else, the lowercase form is used. The behavior is undefined
|
|
* if `flag` is non-zero and `digit` has no uppercase form.
|
|
*/ const digitToBasic = function(digit, flag) {
|
|
// 0..25 map to ASCII a..z or A..Z
|
|
// 26..35 map to ASCII 0..9
|
|
return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
|
|
};
|
|
/**
|
|
* Bias adaptation function as per section 3.4 of RFC 3492.
|
|
* https://tools.ietf.org/html/rfc3492#section-3.4
|
|
* @private
|
|
*/ const adapt = function(delta, numPoints, firstTime) {
|
|
let k = 0;
|
|
delta = firstTime ? floor(delta / damp) : delta >> 1;
|
|
delta += floor(delta / numPoints);
|
|
for (;delta > baseMinusTMin * tMax >> 1; k += base) {
|
|
delta = floor(delta / baseMinusTMin);
|
|
}
|
|
return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
|
|
};
|
|
/**
|
|
* Converts a Punycode string of ASCII-only symbols to a string of Unicode
|
|
* symbols.
|
|
* @memberOf punycode
|
|
* @param {String} input The Punycode string of ASCII-only symbols.
|
|
* @returns {String} The resulting string of Unicode symbols.
|
|
*/ const decode = function(input) {
|
|
// Don't use UCS-2.
|
|
const output = [];
|
|
const inputLength = input.length;
|
|
let i = 0;
|
|
let n = initialN;
|
|
let bias = initialBias;
|
|
// Handle the basic code points: let `basic` be the number of input code
|
|
// points before the last delimiter, or `0` if there is none, then copy
|
|
// the first basic code points to the output.
|
|
let basic = input.lastIndexOf(delimiter);
|
|
if (basic < 0) {
|
|
basic = 0;
|
|
}
|
|
for (let j = 0; j < basic; ++j) {
|
|
// if it's not a basic code point
|
|
if (input.charCodeAt(j) >= 128) {
|
|
error("not-basic");
|
|
}
|
|
output.push(input.charCodeAt(j));
|
|
}
|
|
// Main decoding loop: start just after the last delimiter if any basic code
|
|
// points were copied; start at the beginning otherwise.
|
|
for (let index = basic > 0 ? basic + 1 : 0; index < inputLength; ) {
|
|
// `index` is the index of the next character to be consumed.
|
|
// Decode a generalized variable-length integer into `delta`,
|
|
// which gets added to `i`. The overflow checking is easier
|
|
// if we increase `i` as we go, then subtract off its starting
|
|
// value at the end to obtain `delta`.
|
|
const oldi = i;
|
|
for (let w = 1, k = base; ;k += base) {
|
|
if (index >= inputLength) {
|
|
error("invalid-input");
|
|
}
|
|
const digit = basicToDigit(input.charCodeAt(index++));
|
|
if (digit >= base) {
|
|
error("invalid-input");
|
|
}
|
|
if (digit > floor((maxInt - i) / w)) {
|
|
error("overflow");
|
|
}
|
|
i += digit * w;
|
|
const t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;
|
|
if (digit < t) {
|
|
break;
|
|
}
|
|
const baseMinusT = base - t;
|
|
if (w > floor(maxInt / baseMinusT)) {
|
|
error("overflow");
|
|
}
|
|
w *= baseMinusT;
|
|
}
|
|
const out = output.length + 1;
|
|
bias = adapt(i - oldi, out, oldi == 0);
|
|
// `i` was supposed to wrap around from `out` to `0`,
|
|
// incrementing `n` each time, so we'll fix that now:
|
|
if (floor(i / out) > maxInt - n) {
|
|
error("overflow");
|
|
}
|
|
n += floor(i / out);
|
|
i %= out;
|
|
// Insert `n` at position `i` of the output.
|
|
output.splice(i++, 0, n);
|
|
}
|
|
return String.fromCodePoint(...output);
|
|
};
|
|
/**
|
|
* Converts a string of Unicode symbols (e.g. a domain name label) to a
|
|
* Punycode string of ASCII-only symbols.
|
|
* @memberOf punycode
|
|
* @param {String} input The string of Unicode symbols.
|
|
* @returns {String} The resulting Punycode string of ASCII-only symbols.
|
|
*/ const encode = function(input) {
|
|
const output = [];
|
|
// Convert the input in UCS-2 to an array of Unicode code points.
|
|
input = ucs2decode(input);
|
|
// Cache the length.
|
|
const inputLength = input.length;
|
|
// Initialize the state.
|
|
let n = initialN;
|
|
let delta = 0;
|
|
let bias = initialBias;
|
|
// Handle the basic code points.
|
|
for (const currentValue of input) {
|
|
if (currentValue < 128) {
|
|
output.push(stringFromCharCode(currentValue));
|
|
}
|
|
}
|
|
const basicLength = output.length;
|
|
let handledCPCount = basicLength;
|
|
// `handledCPCount` is the number of code points that have been handled;
|
|
// `basicLength` is the number of basic code points.
|
|
// Finish the basic string with a delimiter unless it's empty.
|
|
if (basicLength) {
|
|
output.push(delimiter);
|
|
}
|
|
// Main encoding loop:
|
|
while (handledCPCount < inputLength) {
|
|
// All non-basic code points < n have been handled already. Find the next
|
|
// larger one:
|
|
let m = maxInt;
|
|
for (const currentValue of input) {
|
|
if (currentValue >= n && currentValue < m) {
|
|
m = currentValue;
|
|
}
|
|
}
|
|
// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
|
|
// but guard against overflow.
|
|
const handledCPCountPlusOne = handledCPCount + 1;
|
|
if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
|
|
error("overflow");
|
|
}
|
|
delta += (m - n) * handledCPCountPlusOne;
|
|
n = m;
|
|
for (const currentValue of input) {
|
|
if (currentValue < n && ++delta > maxInt) {
|
|
error("overflow");
|
|
}
|
|
if (currentValue === n) {
|
|
// Represent delta as a generalized variable-length integer.
|
|
let q = delta;
|
|
for (let k = base; ;k += base) {
|
|
const t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;
|
|
if (q < t) {
|
|
break;
|
|
}
|
|
const qMinusT = q - t;
|
|
const baseMinusT = base - t;
|
|
output.push(stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0)));
|
|
q = floor(qMinusT / baseMinusT);
|
|
}
|
|
output.push(stringFromCharCode(digitToBasic(q, 0)));
|
|
bias = adapt(delta, handledCPCountPlusOne, handledCPCount === basicLength);
|
|
delta = 0;
|
|
++handledCPCount;
|
|
}
|
|
}
|
|
++delta;
|
|
++n;
|
|
}
|
|
return output.join("");
|
|
};
|
|
/**
|
|
* Converts a Punycode string representing a domain name or an email address
|
|
* to Unicode. Only the Punycoded parts of the input will be converted, i.e.
|
|
* it doesn't matter if you call it on a string that has already been
|
|
* converted to Unicode.
|
|
* @memberOf punycode
|
|
* @param {String} input The Punycoded domain name or email address to
|
|
* convert to Unicode.
|
|
* @returns {String} The Unicode representation of the given Punycode
|
|
* string.
|
|
*/ const toUnicode = function(input) {
|
|
return mapDomain(input, (function(string) {
|
|
return regexPunycode.test(string) ? decode(string.slice(4).toLowerCase()) : string;
|
|
}));
|
|
};
|
|
/**
|
|
* Converts a Unicode string representing a domain name or an email address to
|
|
* Punycode. Only the non-ASCII parts of the domain name will be converted,
|
|
* i.e. it doesn't matter if you call it with a domain that's already in
|
|
* ASCII.
|
|
* @memberOf punycode
|
|
* @param {String} input The domain name or email address to convert, as a
|
|
* Unicode string.
|
|
* @returns {String} The Punycode representation of the given domain name or
|
|
* email address.
|
|
*/ const toASCII = function(input) {
|
|
return mapDomain(input, (function(string) {
|
|
return regexNonASCII.test(string) ? "xn--" + encode(string) : string;
|
|
}));
|
|
};
|
|
/*--------------------------------------------------------------------------*/
|
|
/** Define the public API */ const punycode = {
|
|
/**
|
|
* A string representing the current Punycode.js version number.
|
|
* @memberOf punycode
|
|
* @type String
|
|
*/
|
|
version: "2.3.1",
|
|
/**
|
|
* An object of methods to convert from JavaScript's internal character
|
|
* representation (UCS-2) to Unicode code points, and back.
|
|
* @see <https://mathiasbynens.be/notes/javascript-encoding>
|
|
* @memberOf punycode
|
|
* @type Object
|
|
*/
|
|
ucs2: {
|
|
decode: ucs2decode,
|
|
encode: ucs2encode
|
|
},
|
|
decode: decode,
|
|
encode: encode,
|
|
toASCII: toASCII,
|
|
toUnicode: toUnicode
|
|
};
|
|
// markdown-it default options
|
|
var cfg_default = {
|
|
options: {
|
|
html: false,
|
|
// Enable HTML tags in source
|
|
xhtmlOut: false,
|
|
// Use '/' to close single tags (<br />)
|
|
breaks: false,
|
|
// Convert '\n' in paragraphs into <br>
|
|
langPrefix: "language-",
|
|
// CSS language prefix for fenced blocks
|
|
linkify: false,
|
|
// autoconvert URL-like texts to links
|
|
// Enable some language-neutral replacements + quotes beautification
|
|
typographer: false,
|
|
// Double + single quotes replacement pairs, when typographer enabled,
|
|
// and smartquotes on. Could be either a String or an Array.
|
|
// For example, you can use '«»„“' for Russian, '„“‚‘' for German,
|
|
// and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
|
|
quotes: "\u201c\u201d\u2018\u2019",
|
|
/* “”‘’ */
|
|
// Highlighter function. Should return escaped HTML,
|
|
// or '' if the source string is not changed and should be escaped externaly.
|
|
// If result starts with <pre... internal wrapper is skipped.
|
|
// function (/*str, lang*/) { return ''; }
|
|
highlight: null,
|
|
maxNesting: 100
|
|
},
|
|
components: {
|
|
core: {},
|
|
block: {},
|
|
inline: {}
|
|
}
|
|
};
|
|
// "Zero" preset, with nothing enabled. Useful for manual configuring of simple
|
|
// modes. For example, to parse bold/italic only.
|
|
var cfg_zero = {
|
|
options: {
|
|
html: false,
|
|
// Enable HTML tags in source
|
|
xhtmlOut: false,
|
|
// Use '/' to close single tags (<br />)
|
|
breaks: false,
|
|
// Convert '\n' in paragraphs into <br>
|
|
langPrefix: "language-",
|
|
// CSS language prefix for fenced blocks
|
|
linkify: false,
|
|
// autoconvert URL-like texts to links
|
|
// Enable some language-neutral replacements + quotes beautification
|
|
typographer: false,
|
|
// Double + single quotes replacement pairs, when typographer enabled,
|
|
// and smartquotes on. Could be either a String or an Array.
|
|
// For example, you can use '«»„“' for Russian, '„“‚‘' for German,
|
|
// and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
|
|
quotes: "\u201c\u201d\u2018\u2019",
|
|
/* “”‘’ */
|
|
// Highlighter function. Should return escaped HTML,
|
|
// or '' if the source string is not changed and should be escaped externaly.
|
|
// If result starts with <pre... internal wrapper is skipped.
|
|
// function (/*str, lang*/) { return ''; }
|
|
highlight: null,
|
|
maxNesting: 20
|
|
},
|
|
components: {
|
|
core: {
|
|
rules: [ "normalize", "block", "inline", "text_join" ]
|
|
},
|
|
block: {
|
|
rules: [ "paragraph" ]
|
|
},
|
|
inline: {
|
|
rules: [ "text" ],
|
|
rules2: [ "balance_pairs", "fragments_join" ]
|
|
}
|
|
}
|
|
};
|
|
// Commonmark default options
|
|
var cfg_commonmark = {
|
|
options: {
|
|
html: true,
|
|
// Enable HTML tags in source
|
|
xhtmlOut: true,
|
|
// Use '/' to close single tags (<br />)
|
|
breaks: false,
|
|
// Convert '\n' in paragraphs into <br>
|
|
langPrefix: "language-",
|
|
// CSS language prefix for fenced blocks
|
|
linkify: false,
|
|
// autoconvert URL-like texts to links
|
|
// Enable some language-neutral replacements + quotes beautification
|
|
typographer: false,
|
|
// Double + single quotes replacement pairs, when typographer enabled,
|
|
// and smartquotes on. Could be either a String or an Array.
|
|
// For example, you can use '«»„“' for Russian, '„“‚‘' for German,
|
|
// and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
|
|
quotes: "\u201c\u201d\u2018\u2019",
|
|
/* “”‘’ */
|
|
// Highlighter function. Should return escaped HTML,
|
|
// or '' if the source string is not changed and should be escaped externaly.
|
|
// If result starts with <pre... internal wrapper is skipped.
|
|
// function (/*str, lang*/) { return ''; }
|
|
highlight: null,
|
|
maxNesting: 20
|
|
},
|
|
components: {
|
|
core: {
|
|
rules: [ "normalize", "block", "inline", "text_join" ]
|
|
},
|
|
block: {
|
|
rules: [ "blockquote", "code", "fence", "heading", "hr", "html_block", "lheading", "list", "reference", "paragraph" ]
|
|
},
|
|
inline: {
|
|
rules: [ "autolink", "backticks", "emphasis", "entity", "escape", "html_inline", "image", "link", "newline", "text" ],
|
|
rules2: [ "balance_pairs", "emphasis", "fragments_join" ]
|
|
}
|
|
}
|
|
};
|
|
// Main parser class
|
|
const config = {
|
|
default: cfg_default,
|
|
zero: cfg_zero,
|
|
commonmark: cfg_commonmark
|
|
};
|
|
|
|
// This validator can prohibit more than really needed to prevent XSS. It's a
|
|
// tradeoff to keep code simple and to be secure by default.
|
|
|
|
// If you need different setup - override validator method as you wish. Or
|
|
// replace it with dummy function and use external sanitizer.
|
|
|
|
const BAD_PROTO_RE = /^(vbscript|javascript|file|data):/;
|
|
const GOOD_DATA_RE = /^data:image\/(gif|png|jpeg|webp);/;
|
|
function validateLink(url) {
|
|
// url should be normalized at this point, and existing entities are decoded
|
|
const str = url.trim().toLowerCase();
|
|
return BAD_PROTO_RE.test(str) ? GOOD_DATA_RE.test(str) : true;
|
|
}
|
|
const RECODE_HOSTNAME_FOR = [ "http:", "https:", "mailto:" ];
|
|
function normalizeLink(url) {
|
|
const parsed = mdurl.parse(url, true);
|
|
if (parsed.hostname) {
|
|
// Encode hostnames in urls like:
|
|
// `http://host/`, `https://host/`, `mailto:user@host`, `//host/`
|
|
// We don't encode unknown schemas, because it's likely that we encode
|
|
// something we shouldn't (e.g. `skype:name` treated as `skype:host`)
|
|
if (!parsed.protocol || RECODE_HOSTNAME_FOR.indexOf(parsed.protocol) >= 0) {
|
|
try {
|
|
parsed.hostname = punycode.toASCII(parsed.hostname);
|
|
} catch (er) {}
|
|
}
|
|
}
|
|
return mdurl.encode(mdurl.format(parsed));
|
|
}
|
|
function normalizeLinkText(url) {
|
|
const parsed = mdurl.parse(url, true);
|
|
if (parsed.hostname) {
|
|
// Encode hostnames in urls like:
|
|
// `http://host/`, `https://host/`, `mailto:user@host`, `//host/`
|
|
// We don't encode unknown schemas, because it's likely that we encode
|
|
// something we shouldn't (e.g. `skype:name` treated as `skype:host`)
|
|
if (!parsed.protocol || RECODE_HOSTNAME_FOR.indexOf(parsed.protocol) >= 0) {
|
|
try {
|
|
parsed.hostname = punycode.toUnicode(parsed.hostname);
|
|
} catch (er) {}
|
|
}
|
|
}
|
|
// add '%' to exclude list because of https://github.com/markdown-it/markdown-it/issues/720
|
|
return mdurl.decode(mdurl.format(parsed), mdurl.decode.defaultChars + "%");
|
|
}
|
|
/**
|
|
* class MarkdownIt
|
|
*
|
|
* Main parser/renderer class.
|
|
*
|
|
* ##### Usage
|
|
*
|
|
* ```javascript
|
|
* // node.js, "classic" way:
|
|
* var MarkdownIt = require('markdown-it'),
|
|
* md = new MarkdownIt();
|
|
* var result = md.render('# markdown-it rulezz!');
|
|
*
|
|
* // node.js, the same, but with sugar:
|
|
* var md = require('markdown-it')();
|
|
* var result = md.render('# markdown-it rulezz!');
|
|
*
|
|
* // browser without AMD, added to "window" on script load
|
|
* // Note, there are no dash.
|
|
* var md = window.markdownit();
|
|
* var result = md.render('# markdown-it rulezz!');
|
|
* ```
|
|
*
|
|
* Single line rendering, without paragraph wrap:
|
|
*
|
|
* ```javascript
|
|
* var md = require('markdown-it')();
|
|
* var result = md.renderInline('__markdown-it__ rulezz!');
|
|
* ```
|
|
**/
|
|
/**
|
|
* new MarkdownIt([presetName, options])
|
|
* - presetName (String): optional, `commonmark` / `zero`
|
|
* - options (Object)
|
|
*
|
|
* Creates parser instanse with given config. Can be called without `new`.
|
|
*
|
|
* ##### presetName
|
|
*
|
|
* MarkdownIt provides named presets as a convenience to quickly
|
|
* enable/disable active syntax rules and options for common use cases.
|
|
*
|
|
* - ["commonmark"](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/commonmark.js) -
|
|
* configures parser to strict [CommonMark](http://commonmark.org/) mode.
|
|
* - [default](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/default.js) -
|
|
* similar to GFM, used when no preset name given. Enables all available rules,
|
|
* but still without html, typographer & autolinker.
|
|
* - ["zero"](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/zero.js) -
|
|
* all rules disabled. Useful to quickly setup your config via `.enable()`.
|
|
* For example, when you need only `bold` and `italic` markup and nothing else.
|
|
*
|
|
* ##### options:
|
|
*
|
|
* - __html__ - `false`. Set `true` to enable HTML tags in source. Be careful!
|
|
* That's not safe! You may need external sanitizer to protect output from XSS.
|
|
* It's better to extend features via plugins, instead of enabling HTML.
|
|
* - __xhtmlOut__ - `false`. Set `true` to add '/' when closing single tags
|
|
* (`<br />`). This is needed only for full CommonMark compatibility. In real
|
|
* world you will need HTML output.
|
|
* - __breaks__ - `false`. Set `true` to convert `\n` in paragraphs into `<br>`.
|
|
* - __langPrefix__ - `language-`. CSS language class prefix for fenced blocks.
|
|
* Can be useful for external highlighters.
|
|
* - __linkify__ - `false`. Set `true` to autoconvert URL-like text to links.
|
|
* - __typographer__ - `false`. Set `true` to enable [some language-neutral
|
|
* replacement](https://github.com/markdown-it/markdown-it/blob/master/lib/rules_core/replacements.js) +
|
|
* quotes beautification (smartquotes).
|
|
* - __quotes__ - `“”‘’`, String or Array. Double + single quotes replacement
|
|
* pairs, when typographer enabled and smartquotes on. For example, you can
|
|
* use `'«»„“'` for Russian, `'„“‚‘'` for German, and
|
|
* `['«\xA0', '\xA0»', '‹\xA0', '\xA0›']` for French (including nbsp).
|
|
* - __highlight__ - `null`. Highlighter function for fenced code blocks.
|
|
* Highlighter `function (str, lang)` should return escaped HTML. It can also
|
|
* return empty string if the source was not changed and should be escaped
|
|
* externaly. If result starts with <pre... internal wrapper is skipped.
|
|
*
|
|
* ##### Example
|
|
*
|
|
* ```javascript
|
|
* // commonmark mode
|
|
* var md = require('markdown-it')('commonmark');
|
|
*
|
|
* // default mode
|
|
* var md = require('markdown-it')();
|
|
*
|
|
* // enable everything
|
|
* var md = require('markdown-it')({
|
|
* html: true,
|
|
* linkify: true,
|
|
* typographer: true
|
|
* });
|
|
* ```
|
|
*
|
|
* ##### Syntax highlighting
|
|
*
|
|
* ```js
|
|
* var hljs = require('highlight.js') // https://highlightjs.org/
|
|
*
|
|
* var md = require('markdown-it')({
|
|
* highlight: function (str, lang) {
|
|
* if (lang && hljs.getLanguage(lang)) {
|
|
* try {
|
|
* return hljs.highlight(str, { language: lang, ignoreIllegals: true }).value;
|
|
* } catch (__) {}
|
|
* }
|
|
*
|
|
* return ''; // use external default escaping
|
|
* }
|
|
* });
|
|
* ```
|
|
*
|
|
* Or with full wrapper override (if you need assign class to `<pre>` or `<code>`):
|
|
*
|
|
* ```javascript
|
|
* var hljs = require('highlight.js') // https://highlightjs.org/
|
|
*
|
|
* // Actual default values
|
|
* var md = require('markdown-it')({
|
|
* highlight: function (str, lang) {
|
|
* if (lang && hljs.getLanguage(lang)) {
|
|
* try {
|
|
* return '<pre><code class="hljs">' +
|
|
* hljs.highlight(str, { language: lang, ignoreIllegals: true }).value +
|
|
* '</code></pre>';
|
|
* } catch (__) {}
|
|
* }
|
|
*
|
|
* return '<pre><code class="hljs">' + md.utils.escapeHtml(str) + '</code></pre>';
|
|
* }
|
|
* });
|
|
* ```
|
|
*
|
|
**/ function MarkdownIt(presetName, options) {
|
|
if (!(this instanceof MarkdownIt)) {
|
|
return new MarkdownIt(presetName, options);
|
|
}
|
|
if (!options) {
|
|
if (!utils.isString(presetName)) {
|
|
options = presetName || {};
|
|
presetName = "default";
|
|
}
|
|
}
|
|
/**
|
|
* MarkdownIt#inline -> ParserInline
|
|
*
|
|
* Instance of [[ParserInline]]. You may need it to add new rules when
|
|
* writing plugins. For simple rules control use [[MarkdownIt.disable]] and
|
|
* [[MarkdownIt.enable]].
|
|
**/ this.inline = new ParserInline;
|
|
/**
|
|
* MarkdownIt#block -> ParserBlock
|
|
*
|
|
* Instance of [[ParserBlock]]. You may need it to add new rules when
|
|
* writing plugins. For simple rules control use [[MarkdownIt.disable]] and
|
|
* [[MarkdownIt.enable]].
|
|
**/ this.block = new ParserBlock;
|
|
/**
|
|
* MarkdownIt#core -> Core
|
|
*
|
|
* Instance of [[Core]] chain executor. You may need it to add new rules when
|
|
* writing plugins. For simple rules control use [[MarkdownIt.disable]] and
|
|
* [[MarkdownIt.enable]].
|
|
**/ this.core = new Core;
|
|
/**
|
|
* MarkdownIt#renderer -> Renderer
|
|
*
|
|
* Instance of [[Renderer]]. Use it to modify output look. Or to add rendering
|
|
* rules for new token types, generated by plugins.
|
|
*
|
|
* ##### Example
|
|
*
|
|
* ```javascript
|
|
* var md = require('markdown-it')();
|
|
*
|
|
* function myToken(tokens, idx, options, env, self) {
|
|
* //...
|
|
* return result;
|
|
* };
|
|
*
|
|
* md.renderer.rules['my_token'] = myToken
|
|
* ```
|
|
*
|
|
* See [[Renderer]] docs and [source code](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.js).
|
|
**/ this.renderer = new Renderer;
|
|
/**
|
|
* MarkdownIt#linkify -> LinkifyIt
|
|
*
|
|
* [linkify-it](https://github.com/markdown-it/linkify-it) instance.
|
|
* Used by [linkify](https://github.com/markdown-it/markdown-it/blob/master/lib/rules_core/linkify.js)
|
|
* rule.
|
|
**/ this.linkify = new LinkifyIt$1;
|
|
/**
|
|
* MarkdownIt#validateLink(url) -> Boolean
|
|
*
|
|
* Link validation function. CommonMark allows too much in links. By default
|
|
* we disable `javascript:`, `vbscript:`, `file:` schemas, and almost all `data:...` schemas
|
|
* except some embedded image types.
|
|
*
|
|
* You can change this behaviour:
|
|
*
|
|
* ```javascript
|
|
* var md = require('markdown-it')();
|
|
* // enable everything
|
|
* md.validateLink = function () { return true; }
|
|
* ```
|
|
**/ this.validateLink = validateLink;
|
|
/**
|
|
* MarkdownIt#normalizeLink(url) -> String
|
|
*
|
|
* Function used to encode link url to a machine-readable format,
|
|
* which includes url-encoding, punycode, etc.
|
|
**/ this.normalizeLink = normalizeLink;
|
|
/**
|
|
* MarkdownIt#normalizeLinkText(url) -> String
|
|
*
|
|
* Function used to decode link url to a human-readable format`
|
|
**/ this.normalizeLinkText = normalizeLinkText;
|
|
// Expose utils & helpers for easy acces from plugins
|
|
/**
|
|
* MarkdownIt#utils -> utils
|
|
*
|
|
* Assorted utility functions, useful to write plugins. See details
|
|
* [here](https://github.com/markdown-it/markdown-it/blob/master/lib/common/utils.mjs).
|
|
**/ this.utils = utils;
|
|
/**
|
|
* MarkdownIt#helpers -> helpers
|
|
*
|
|
* Link components parser functions, useful to write plugins. See details
|
|
* [here](https://github.com/markdown-it/markdown-it/blob/master/lib/helpers).
|
|
**/ this.helpers = utils.assign({}, helpers);
|
|
this.options = {};
|
|
this.configure(presetName);
|
|
if (options) {
|
|
this.set(options);
|
|
}
|
|
}
|
|
/** chainable
|
|
* MarkdownIt.set(options)
|
|
*
|
|
* Set parser options (in the same format as in constructor). Probably, you
|
|
* will never need it, but you can change options after constructor call.
|
|
*
|
|
* ##### Example
|
|
*
|
|
* ```javascript
|
|
* var md = require('markdown-it')()
|
|
* .set({ html: true, breaks: true })
|
|
* .set({ typographer, true });
|
|
* ```
|
|
*
|
|
* __Note:__ To achieve the best possible performance, don't modify a
|
|
* `markdown-it` instance options on the fly. If you need multiple configurations
|
|
* it's best to create multiple instances and initialize each with separate
|
|
* config.
|
|
**/ MarkdownIt.prototype.set = function(options) {
|
|
utils.assign(this.options, options);
|
|
return this;
|
|
};
|
|
/** chainable, internal
|
|
* MarkdownIt.configure(presets)
|
|
*
|
|
* Batch load of all options and compenent settings. This is internal method,
|
|
* and you probably will not need it. But if you will - see available presets
|
|
* and data structure [here](https://github.com/markdown-it/markdown-it/tree/master/lib/presets)
|
|
*
|
|
* We strongly recommend to use presets instead of direct config loads. That
|
|
* will give better compatibility with next versions.
|
|
**/ MarkdownIt.prototype.configure = function(presets) {
|
|
const self = this;
|
|
if (utils.isString(presets)) {
|
|
const presetName = presets;
|
|
presets = config[presetName];
|
|
if (!presets) {
|
|
throw new Error('Wrong `markdown-it` preset "' + presetName + '", check name');
|
|
}
|
|
}
|
|
if (!presets) {
|
|
throw new Error("Wrong `markdown-it` preset, can't be empty");
|
|
}
|
|
if (presets.options) {
|
|
self.set(presets.options);
|
|
}
|
|
if (presets.components) {
|
|
Object.keys(presets.components).forEach((function(name) {
|
|
if (presets.components[name].rules) {
|
|
self[name].ruler.enableOnly(presets.components[name].rules);
|
|
}
|
|
if (presets.components[name].rules2) {
|
|
self[name].ruler2.enableOnly(presets.components[name].rules2);
|
|
}
|
|
}));
|
|
}
|
|
return this;
|
|
};
|
|
/** chainable
|
|
* MarkdownIt.enable(list, ignoreInvalid)
|
|
* - list (String|Array): rule name or list of rule names to enable
|
|
* - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
|
|
*
|
|
* Enable list or rules. It will automatically find appropriate components,
|
|
* containing rules with given names. If rule not found, and `ignoreInvalid`
|
|
* not set - throws exception.
|
|
*
|
|
* ##### Example
|
|
*
|
|
* ```javascript
|
|
* var md = require('markdown-it')()
|
|
* .enable(['sub', 'sup'])
|
|
* .disable('smartquotes');
|
|
* ```
|
|
**/ MarkdownIt.prototype.enable = function(list, ignoreInvalid) {
|
|
let result = [];
|
|
if (!Array.isArray(list)) {
|
|
list = [ list ];
|
|
}
|
|
[ "core", "block", "inline" ].forEach((function(chain) {
|
|
result = result.concat(this[chain].ruler.enable(list, true));
|
|
}), this);
|
|
result = result.concat(this.inline.ruler2.enable(list, true));
|
|
const missed = list.filter((function(name) {
|
|
return result.indexOf(name) < 0;
|
|
}));
|
|
if (missed.length && !ignoreInvalid) {
|
|
throw new Error("MarkdownIt. Failed to enable unknown rule(s): " + missed);
|
|
}
|
|
return this;
|
|
};
|
|
/** chainable
|
|
* MarkdownIt.disable(list, ignoreInvalid)
|
|
* - list (String|Array): rule name or list of rule names to disable.
|
|
* - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
|
|
*
|
|
* The same as [[MarkdownIt.enable]], but turn specified rules off.
|
|
**/ MarkdownIt.prototype.disable = function(list, ignoreInvalid) {
|
|
let result = [];
|
|
if (!Array.isArray(list)) {
|
|
list = [ list ];
|
|
}
|
|
[ "core", "block", "inline" ].forEach((function(chain) {
|
|
result = result.concat(this[chain].ruler.disable(list, true));
|
|
}), this);
|
|
result = result.concat(this.inline.ruler2.disable(list, true));
|
|
const missed = list.filter((function(name) {
|
|
return result.indexOf(name) < 0;
|
|
}));
|
|
if (missed.length && !ignoreInvalid) {
|
|
throw new Error("MarkdownIt. Failed to disable unknown rule(s): " + missed);
|
|
}
|
|
return this;
|
|
};
|
|
/** chainable
|
|
* MarkdownIt.use(plugin, params)
|
|
*
|
|
* Load specified plugin with given params into current parser instance.
|
|
* It's just a sugar to call `plugin(md, params)` with curring.
|
|
*
|
|
* ##### Example
|
|
*
|
|
* ```javascript
|
|
* var iterator = require('markdown-it-for-inline');
|
|
* var md = require('markdown-it')()
|
|
* .use(iterator, 'foo_replace', 'text', function (tokens, idx) {
|
|
* tokens[idx].content = tokens[idx].content.replace(/foo/g, 'bar');
|
|
* });
|
|
* ```
|
|
**/ MarkdownIt.prototype.use = function(plugin /*, params, ... */) {
|
|
const args = [ this ].concat(Array.prototype.slice.call(arguments, 1));
|
|
plugin.apply(plugin, args);
|
|
return this;
|
|
};
|
|
/** internal
|
|
* MarkdownIt.parse(src, env) -> Array
|
|
* - src (String): source string
|
|
* - env (Object): environment sandbox
|
|
*
|
|
* Parse input string and return list of block tokens (special token type
|
|
* "inline" will contain list of inline tokens). You should not call this
|
|
* method directly, until you write custom renderer (for example, to produce
|
|
* AST).
|
|
*
|
|
* `env` is used to pass data between "distributed" rules and return additional
|
|
* metadata like reference info, needed for the renderer. It also can be used to
|
|
* inject data in specific cases. Usually, you will be ok to pass `{}`,
|
|
* and then pass updated object to renderer.
|
|
**/ MarkdownIt.prototype.parse = function(src, env) {
|
|
if (typeof src !== "string") {
|
|
throw new Error("Input data should be a String");
|
|
}
|
|
const state = new this.core.State(src, this, env);
|
|
this.core.process(state);
|
|
return state.tokens;
|
|
};
|
|
/**
|
|
* MarkdownIt.render(src [, env]) -> String
|
|
* - src (String): source string
|
|
* - env (Object): environment sandbox
|
|
*
|
|
* Render markdown string into html. It does all magic for you :).
|
|
*
|
|
* `env` can be used to inject additional metadata (`{}` by default).
|
|
* But you will not need it with high probability. See also comment
|
|
* in [[MarkdownIt.parse]].
|
|
**/ MarkdownIt.prototype.render = function(src, env) {
|
|
env = env || {};
|
|
return this.renderer.render(this.parse(src, env), this.options, env);
|
|
};
|
|
/** internal
|
|
* MarkdownIt.parseInline(src, env) -> Array
|
|
* - src (String): source string
|
|
* - env (Object): environment sandbox
|
|
*
|
|
* The same as [[MarkdownIt.parse]] but skip all block rules. It returns the
|
|
* block tokens list with the single `inline` element, containing parsed inline
|
|
* tokens in `children` property. Also updates `env` object.
|
|
**/ MarkdownIt.prototype.parseInline = function(src, env) {
|
|
const state = new this.core.State(src, this, env);
|
|
state.inlineMode = true;
|
|
this.core.process(state);
|
|
return state.tokens;
|
|
};
|
|
/**
|
|
* MarkdownIt.renderInline(src [, env]) -> String
|
|
* - src (String): source string
|
|
* - env (Object): environment sandbox
|
|
*
|
|
* Similar to [[MarkdownIt.render]] but for single paragraph content. Result
|
|
* will NOT be wrapped into `<p>` tags.
|
|
**/ MarkdownIt.prototype.renderInline = function(src, env) {
|
|
env = env || {};
|
|
return this.renderer.render(this.parseInline(src, env), this.options, env);
|
|
};
|
|
return MarkdownIt;
|
|
}));
|
|
|