fix
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144
book/node_modules/css-select/lib/esm/general.js
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vendored
Normal file
144
book/node_modules/css-select/lib/esm/general.js
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import { attributeRules } from "./attributes.js";
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import { compilePseudoSelector } from "./pseudo-selectors/index.js";
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import { SelectorType } from "css-what";
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function getElementParent(node, adapter) {
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const parent = adapter.getParent(node);
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if (parent && adapter.isTag(parent)) {
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return parent;
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}
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return null;
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}
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/*
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* All available rules
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*/
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export function compileGeneralSelector(next, selector, options, context, compileToken) {
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const { adapter, equals } = options;
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switch (selector.type) {
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case SelectorType.PseudoElement: {
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throw new Error("Pseudo-elements are not supported by css-select");
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}
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case SelectorType.ColumnCombinator: {
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throw new Error("Column combinators are not yet supported by css-select");
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}
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case SelectorType.Attribute: {
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if (selector.namespace != null) {
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throw new Error("Namespaced attributes are not yet supported by css-select");
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}
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if (!options.xmlMode || options.lowerCaseAttributeNames) {
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selector.name = selector.name.toLowerCase();
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}
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return attributeRules[selector.action](next, selector, options);
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}
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case SelectorType.Pseudo: {
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return compilePseudoSelector(next, selector, options, context, compileToken);
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}
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// Tags
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case SelectorType.Tag: {
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if (selector.namespace != null) {
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throw new Error("Namespaced tag names are not yet supported by css-select");
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}
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let { name } = selector;
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if (!options.xmlMode || options.lowerCaseTags) {
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name = name.toLowerCase();
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}
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return function tag(elem) {
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return adapter.getName(elem) === name && next(elem);
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};
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}
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// Traversal
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case SelectorType.Descendant: {
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if (options.cacheResults === false ||
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typeof WeakSet === "undefined") {
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return function descendant(elem) {
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let current = elem;
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while ((current = getElementParent(current, adapter))) {
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if (next(current)) {
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return true;
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}
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}
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return false;
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};
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}
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// @ts-expect-error `ElementNode` is not extending object
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const isFalseCache = new WeakSet();
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return function cachedDescendant(elem) {
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let current = elem;
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while ((current = getElementParent(current, adapter))) {
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if (!isFalseCache.has(current)) {
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if (adapter.isTag(current) && next(current)) {
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return true;
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}
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isFalseCache.add(current);
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}
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}
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return false;
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};
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}
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case "_flexibleDescendant": {
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// Include element itself, only used while querying an array
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return function flexibleDescendant(elem) {
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let current = elem;
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do {
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if (next(current))
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return true;
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} while ((current = getElementParent(current, adapter)));
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return false;
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};
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}
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case SelectorType.Parent: {
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return function parent(elem) {
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return adapter
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.getChildren(elem)
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.some((elem) => adapter.isTag(elem) && next(elem));
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};
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}
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case SelectorType.Child: {
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return function child(elem) {
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const parent = adapter.getParent(elem);
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return parent != null && adapter.isTag(parent) && next(parent);
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};
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}
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case SelectorType.Sibling: {
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return function sibling(elem) {
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const siblings = adapter.getSiblings(elem);
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for (let i = 0; i < siblings.length; i++) {
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const currentSibling = siblings[i];
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if (equals(elem, currentSibling))
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break;
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if (adapter.isTag(currentSibling) && next(currentSibling)) {
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return true;
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}
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}
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return false;
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};
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}
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case SelectorType.Adjacent: {
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if (adapter.prevElementSibling) {
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return function adjacent(elem) {
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const previous = adapter.prevElementSibling(elem);
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return previous != null && next(previous);
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};
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}
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return function adjacent(elem) {
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const siblings = adapter.getSiblings(elem);
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let lastElement;
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for (let i = 0; i < siblings.length; i++) {
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const currentSibling = siblings[i];
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if (equals(elem, currentSibling))
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break;
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if (adapter.isTag(currentSibling)) {
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lastElement = currentSibling;
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}
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}
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return !!lastElement && next(lastElement);
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};
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}
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case SelectorType.Universal: {
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if (selector.namespace != null && selector.namespace !== "*") {
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throw new Error("Namespaced universal selectors are not yet supported by css-select");
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}
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return next;
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}
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}
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}
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//# sourceMappingURL=general.js.map
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