| 1 | "use strict";
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| 2 | var __spreadArray = (this && this.__spreadArray) || function (to, from) {
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| 3 | for (var i = 0, il = from.length, j = to.length; i < il; i++, j++)
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| 4 | to[j] = from[i];
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| 5 | return to;
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| 6 | };
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| 7 | Object.defineProperty(exports, "__esModule", { value: true });
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| 8 | exports.isTraversal = void 0;
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| 9 | var reName = /^[^\\#]?(?:\\(?:[\da-f]{1,6}\s?|.)|[\w\-\u00b0-\uFFFF])+/;
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| 10 | var reEscape = /\\([\da-f]{1,6}\s?|(\s)|.)/gi;
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| 11 | var actionTypes = new Map([
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| 12 | ["~", "element"],
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| 13 | ["^", "start"],
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| 14 | ["$", "end"],
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| 15 | ["*", "any"],
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| 16 | ["!", "not"],
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| 17 | ["|", "hyphen"],
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| 18 | ]);
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| 19 | var Traversals = {
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| 20 | ">": "child",
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| 21 | "<": "parent",
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| 22 | "~": "sibling",
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| 23 | "+": "adjacent",
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| 24 | };
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| 25 | var attribSelectors = {
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| 26 | "#": ["id", "equals"],
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| 27 | ".": ["class", "element"],
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| 28 | };
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| 29 | // Pseudos, whose data property is parsed as well.
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| 30 | var unpackPseudos = new Set([
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| 31 | "has",
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| 32 | "not",
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| 33 | "matches",
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| 34 | "is",
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| 35 | "host",
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| 36 | "host-context",
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| 37 | ]);
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| 38 | var traversalNames = new Set(__spreadArray([
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| 39 | "descendant"
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| 40 | ], Object.keys(Traversals).map(function (k) { return Traversals[k]; })));
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| 41 | /**
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| 42 | * Attributes that are case-insensitive in HTML.
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| 43 | *
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| 44 | * @private
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| 45 | * @see https://html.spec.whatwg.org/multipage/semantics-other.html#case-sensitivity-of-selectors
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| 46 | */
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| 47 | var caseInsensitiveAttributes = new Set([
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| 48 | "accept",
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| 49 | "accept-charset",
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| 50 | "align",
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| 51 | "alink",
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| 52 | "axis",
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| 53 | "bgcolor",
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| 54 | "charset",
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| 55 | "checked",
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| 56 | "clear",
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| 57 | "codetype",
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| 58 | "color",
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| 59 | "compact",
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| 60 | "declare",
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| 61 | "defer",
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| 62 | "dir",
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| 63 | "direction",
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| 64 | "disabled",
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| 65 | "enctype",
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| 66 | "face",
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| 67 | "frame",
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| 68 | "hreflang",
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| 69 | "http-equiv",
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| 70 | "lang",
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| 71 | "language",
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| 72 | "link",
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| 73 | "media",
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| 74 | "method",
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| 75 | "multiple",
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| 76 | "nohref",
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| 77 | "noresize",
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| 78 | "noshade",
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| 79 | "nowrap",
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| 80 | "readonly",
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| 81 | "rel",
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| 82 | "rev",
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| 83 | "rules",
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| 84 | "scope",
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| 85 | "scrolling",
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| 86 | "selected",
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| 87 | "shape",
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| 88 | "target",
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| 89 | "text",
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| 90 | "type",
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| 91 | "valign",
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| 92 | "valuetype",
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| 93 | "vlink",
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| 94 | ]);
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| 95 | /**
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| 96 | * Checks whether a specific selector is a traversal.
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| 97 | * This is useful eg. in swapping the order of elements that
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| 98 | * are not traversals.
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| 99 | *
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| 100 | * @param selector Selector to check.
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| 101 | */
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| 102 | function isTraversal(selector) {
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| 103 | return traversalNames.has(selector.type);
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| 104 | }
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| 105 | exports.isTraversal = isTraversal;
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| 106 | var stripQuotesFromPseudos = new Set(["contains", "icontains"]);
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| 107 | var quotes = new Set(['"', "'"]);
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| 108 | // Unescape function taken from https://github.com/jquery/sizzle/blob/master/src/sizzle.js#L152
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| 109 | function funescape(_, escaped, escapedWhitespace) {
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| 110 | var high = parseInt(escaped, 16) - 0x10000;
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| 111 | // NaN means non-codepoint
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| 112 | return high !== high || escapedWhitespace
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| 113 | ? escaped
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| 114 | : high < 0
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| 115 | ? // BMP codepoint
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| 116 | String.fromCharCode(high + 0x10000)
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| 117 | : // Supplemental Plane codepoint (surrogate pair)
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| 118 | String.fromCharCode((high >> 10) | 0xd800, (high & 0x3ff) | 0xdc00);
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| 119 | }
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| 120 | function unescapeCSS(str) {
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| 121 | return str.replace(reEscape, funescape);
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| 122 | }
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| 123 | function isWhitespace(c) {
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| 124 | return c === " " || c === "\n" || c === "\t" || c === "\f" || c === "\r";
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| 125 | }
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| 126 | /**
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| 127 | * Parses `selector`, optionally with the passed `options`.
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| 128 | *
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| 129 | * @param selector Selector to parse.
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| 130 | * @param options Options for parsing.
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| 131 | * @returns Returns a two-dimensional array.
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| 132 | * The first dimension represents selectors separated by commas (eg. `sub1, sub2`),
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| 133 | * the second contains the relevant tokens for that selector.
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| 134 | */
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| 135 | function parse(selector, options) {
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| 136 | var subselects = [];
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| 137 | var endIndex = parseSelector(subselects, "" + selector, options, 0);
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| 138 | if (endIndex < selector.length) {
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| 139 | throw new Error("Unmatched selector: " + selector.slice(endIndex));
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| 140 | }
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| 141 | return subselects;
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| 142 | }
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| 143 | exports.default = parse;
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| 144 | function parseSelector(subselects, selector, options, selectorIndex) {
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| 145 | var _a, _b;
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| 146 | if (options === void 0) { options = {}; }
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| 147 | var tokens = [];
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| 148 | var sawWS = false;
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| 149 | function getName(offset) {
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| 150 | var match = selector.slice(selectorIndex + offset).match(reName);
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| 151 | if (!match) {
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| 152 | throw new Error("Expected name, found " + selector.slice(selectorIndex));
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| 153 | }
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| 154 | var name = match[0];
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| 155 | selectorIndex += offset + name.length;
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| 156 | return unescapeCSS(name);
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| 157 | }
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| 158 | function stripWhitespace(offset) {
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| 159 | while (isWhitespace(selector.charAt(selectorIndex + offset)))
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| 160 | offset++;
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| 161 | selectorIndex += offset;
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| 162 | }
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| 163 | function isEscaped(pos) {
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| 164 | var slashCount = 0;
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| 165 | while (selector.charAt(--pos) === "\\")
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| 166 | slashCount++;
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| 167 | return (slashCount & 1) === 1;
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| 168 | }
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| 169 | function ensureNotTraversal() {
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| 170 | if (tokens.length > 0 && isTraversal(tokens[tokens.length - 1])) {
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| 171 | throw new Error("Did not expect successive traversals.");
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| 172 | }
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| 173 | }
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| 174 | stripWhitespace(0);
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| 175 | while (selector !== "") {
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| 176 | var firstChar = selector.charAt(selectorIndex);
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| 177 | if (isWhitespace(firstChar)) {
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| 178 | sawWS = true;
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| 179 | stripWhitespace(1);
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| 180 | }
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| 181 | else if (firstChar in Traversals) {
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| 182 | ensureNotTraversal();
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| 183 | tokens.push({ type: Traversals[firstChar] });
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| 184 | sawWS = false;
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| 185 | stripWhitespace(1);
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| 186 | }
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| 187 | else if (firstChar === ",") {
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| 188 | if (tokens.length === 0) {
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| 189 | throw new Error("Empty sub-selector");
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| 190 | }
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| 191 | subselects.push(tokens);
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| 192 | tokens = [];
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| 193 | sawWS = false;
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| 194 | stripWhitespace(1);
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| 195 | }
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| 196 | else if (selector.startsWith("/*", selectorIndex)) {
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| 197 | var endIndex = selector.indexOf("*/", selectorIndex + 2);
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| 198 | if (endIndex < 0) {
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| 199 | throw new Error("Comment was not terminated");
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| 200 | }
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| 201 | selectorIndex = endIndex + 2;
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| 202 | }
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| 203 | else {
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| 204 | if (sawWS) {
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| 205 | ensureNotTraversal();
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| 206 | tokens.push({ type: "descendant" });
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| 207 | sawWS = false;
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| 208 | }
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| 209 | if (firstChar in attribSelectors) {
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| 210 | var _c = attribSelectors[firstChar], name_1 = _c[0], action = _c[1];
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| 211 | tokens.push({
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| 212 | type: "attribute",
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| 213 | name: name_1,
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| 214 | action: action,
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| 215 | value: getName(1),
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| 216 | namespace: null,
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| 217 | // TODO: Add quirksMode option, which makes `ignoreCase` `true` for HTML.
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| 218 | ignoreCase: options.xmlMode ? null : false,
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| 219 | });
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| 220 | }
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| 221 | else if (firstChar === "[") {
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| 222 | stripWhitespace(1);
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| 223 | // Determine attribute name and namespace
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| 224 | var name_2 = void 0;
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| 225 | var namespace = null;
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| 226 | if (selector.charAt(selectorIndex) === "|") {
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| 227 | namespace = "";
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| 228 | selectorIndex += 1;
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| 229 | }
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| 230 | if (selector.startsWith("*|", selectorIndex)) {
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| 231 | namespace = "*";
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| 232 | selectorIndex += 2;
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| 233 | }
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| 234 | name_2 = getName(0);
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| 235 | if (namespace === null &&
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| 236 | selector.charAt(selectorIndex) === "|" &&
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| 237 | selector.charAt(selectorIndex + 1) !== "=") {
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| 238 | namespace = name_2;
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| 239 | name_2 = getName(1);
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| 240 | }
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| 241 | if ((_a = options.lowerCaseAttributeNames) !== null && _a !== void 0 ? _a : !options.xmlMode) {
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| 242 | name_2 = name_2.toLowerCase();
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| 243 | }
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| 244 | stripWhitespace(0);
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| 245 | // Determine comparison operation
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| 246 | var action = "exists";
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| 247 | var possibleAction = actionTypes.get(selector.charAt(selectorIndex));
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| 248 | if (possibleAction) {
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| 249 | action = possibleAction;
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| 250 | if (selector.charAt(selectorIndex + 1) !== "=") {
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| 251 | throw new Error("Expected `=`");
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| 252 | }
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| 253 | stripWhitespace(2);
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| 254 | }
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| 255 | else if (selector.charAt(selectorIndex) === "=") {
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| 256 | action = "equals";
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| 257 | stripWhitespace(1);
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| 258 | }
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| 259 | // Determine value
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| 260 | var value = "";
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| 261 | var ignoreCase = null;
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| 262 | if (action !== "exists") {
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| 263 | if (quotes.has(selector.charAt(selectorIndex))) {
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| 264 | var quote = selector.charAt(selectorIndex);
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| 265 | var sectionEnd = selectorIndex + 1;
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| 266 | while (sectionEnd < selector.length &&
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| 267 | (selector.charAt(sectionEnd) !== quote ||
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| 268 | isEscaped(sectionEnd))) {
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| 269 | sectionEnd += 1;
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| 270 | }
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| 271 | if (selector.charAt(sectionEnd) !== quote) {
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| 272 | throw new Error("Attribute value didn't end");
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| 273 | }
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| 274 | value = unescapeCSS(selector.slice(selectorIndex + 1, sectionEnd));
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| 275 | selectorIndex = sectionEnd + 1;
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| 276 | }
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| 277 | else {
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| 278 | var valueStart = selectorIndex;
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| 279 | while (selectorIndex < selector.length &&
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| 280 | ((!isWhitespace(selector.charAt(selectorIndex)) &&
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| 281 | selector.charAt(selectorIndex) !== "]") ||
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| 282 | isEscaped(selectorIndex))) {
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| 283 | selectorIndex += 1;
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| 284 | }
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| 285 | value = unescapeCSS(selector.slice(valueStart, selectorIndex));
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| 286 | }
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| 287 | stripWhitespace(0);
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| 288 | // See if we have a force ignore flag
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| 289 | var forceIgnore = selector.charAt(selectorIndex);
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| 290 | // If the forceIgnore flag is set (either `i` or `s`), use that value
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| 291 | if (forceIgnore === "s" || forceIgnore === "S") {
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| 292 | ignoreCase = false;
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| 293 | stripWhitespace(1);
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| 294 | }
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| 295 | else if (forceIgnore === "i" || forceIgnore === "I") {
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| 296 | ignoreCase = true;
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| 297 | stripWhitespace(1);
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| 298 | }
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| 299 | }
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| 300 | // If `xmlMode` is set, there are no rules; otherwise, use the `caseInsensitiveAttributes` list.
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| 301 | if (!options.xmlMode) {
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| 302 | // TODO: Skip this for `exists`, as there is no value to compare to.
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| 303 | ignoreCase !== null && ignoreCase !== void 0 ? ignoreCase : (ignoreCase = caseInsensitiveAttributes.has(name_2));
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| 304 | }
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| 305 | if (selector.charAt(selectorIndex) !== "]") {
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| 306 | throw new Error("Attribute selector didn't terminate");
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| 307 | }
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| 308 | selectorIndex += 1;
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| 309 | var attributeSelector = {
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| 310 | type: "attribute",
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| 311 | name: name_2,
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| 312 | action: action,
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| 313 | value: value,
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| 314 | namespace: namespace,
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| 315 | ignoreCase: ignoreCase,
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| 316 | };
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| 317 | tokens.push(attributeSelector);
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| 318 | }
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| 319 | else if (firstChar === ":") {
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| 320 | if (selector.charAt(selectorIndex + 1) === ":") {
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| 321 | tokens.push({
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| 322 | type: "pseudo-element",
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| 323 | name: getName(2).toLowerCase(),
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| 324 | });
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| 325 | continue;
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| 326 | }
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| 327 | var name_3 = getName(1).toLowerCase();
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| 328 | var data = null;
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| 329 | if (selector.charAt(selectorIndex) === "(") {
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| 330 | if (unpackPseudos.has(name_3)) {
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| 331 | if (quotes.has(selector.charAt(selectorIndex + 1))) {
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| 332 | throw new Error("Pseudo-selector " + name_3 + " cannot be quoted");
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| 333 | }
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| 334 | data = [];
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| 335 | selectorIndex = parseSelector(data, selector, options, selectorIndex + 1);
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| 336 | if (selector.charAt(selectorIndex) !== ")") {
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| 337 | throw new Error("Missing closing parenthesis in :" + name_3 + " (" + selector + ")");
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| 338 | }
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| 339 | selectorIndex += 1;
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| 340 | }
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| 341 | else {
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| 342 | selectorIndex += 1;
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| 343 | var start = selectorIndex;
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| 344 | var counter = 1;
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| 345 | for (; counter > 0 && selectorIndex < selector.length; selectorIndex++) {
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| 346 | if (selector.charAt(selectorIndex) === "(" &&
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| 347 | !isEscaped(selectorIndex)) {
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| 348 | counter++;
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| 349 | }
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| 350 | else if (selector.charAt(selectorIndex) === ")" &&
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| 351 | !isEscaped(selectorIndex)) {
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| 352 | counter--;
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| 353 | }
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| 354 | }
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| 355 | if (counter) {
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| 356 | throw new Error("Parenthesis not matched");
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| 357 | }
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| 358 | data = selector.slice(start, selectorIndex - 1);
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| 359 | if (stripQuotesFromPseudos.has(name_3)) {
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| 360 | var quot = data.charAt(0);
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| 361 | if (quot === data.slice(-1) && quotes.has(quot)) {
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| 362 | data = data.slice(1, -1);
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| 363 | }
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| 364 | data = unescapeCSS(data);
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| 365 | }
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| 366 | }
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| 367 | }
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| 368 | tokens.push({ type: "pseudo", name: name_3, data: data });
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| 369 | }
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| 370 | else {
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| 371 | var namespace = null;
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| 372 | var name_4 = void 0;
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| 373 | if (firstChar === "*") {
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| 374 | selectorIndex += 1;
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| 375 | name_4 = "*";
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| 376 | }
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| 377 | else if (reName.test(selector.slice(selectorIndex))) {
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| 378 | if (selector.charAt(selectorIndex) === "|") {
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| 379 | namespace = "";
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| 380 | selectorIndex += 1;
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| 381 | }
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| 382 | name_4 = getName(0);
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| 383 | }
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| 384 | else {
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| 385 | /*
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| 386 | * We have finished parsing the selector.
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| 387 | * Remove descendant tokens at the end if they exist,
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| 388 | * and return the last index, so that parsing can be
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| 389 | * picked up from here.
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| 390 | */
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| 391 | if (tokens.length &&
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| 392 | tokens[tokens.length - 1].type === "descendant") {
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| 393 | tokens.pop();
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| 394 | }
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| 395 | addToken(subselects, tokens);
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| 396 | return selectorIndex;
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| 397 | }
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| 398 | if (selector.charAt(selectorIndex) === "|") {
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| 399 | namespace = name_4;
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| 400 | if (selector.charAt(selectorIndex + 1) === "*") {
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| 401 | name_4 = "*";
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| 402 | selectorIndex += 2;
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| 403 | }
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| 404 | else {
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| 405 | name_4 = getName(1);
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| 406 | }
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| 407 | }
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| 408 | if (name_4 === "*") {
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| 409 | tokens.push({ type: "universal", namespace: namespace });
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| 410 | }
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| 411 | else {
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| 412 | if ((_b = options.lowerCaseTags) !== null && _b !== void 0 ? _b : !options.xmlMode) {
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| 413 | name_4 = name_4.toLowerCase();
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| 414 | }
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| 415 | tokens.push({ type: "tag", name: name_4, namespace: namespace });
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| 416 | }
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| 417 | }
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| 418 | }
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| 419 | }
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| 420 | addToken(subselects, tokens);
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| 421 | return selectorIndex;
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| 422 | }
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| 423 | function addToken(subselects, tokens) {
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| 424 | if (subselects.length > 0 && tokens.length === 0) {
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| 425 | throw new Error("Empty sub-selector");
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| 426 | }
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| 427 | subselects.push(tokens);
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| 428 | }
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