222 lines
6.9 KiB
JavaScript
222 lines
6.9 KiB
JavaScript
import boolbase from "boolbase";
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/**
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* All reserved characters in a regex, used for escaping.
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*
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* Taken from XRegExp, (c) 2007-2020 Steven Levithan under the MIT license
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* https://github.com/slevithan/xregexp/blob/95eeebeb8fac8754d54eafe2b4743661ac1cf028/src/xregexp.js#L794
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*/
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const reChars = /[-[\]{}()*+?.,\\^$|#\s]/g;
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function escapeRegex(value) {
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return value.replace(reChars, "\\$&");
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}
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/**
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* Attributes that are case-insensitive in HTML.
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*
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* @private
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* @see https://html.spec.whatwg.org/multipage/semantics-other.html#case-sensitivity-of-selectors
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*/
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const caseInsensitiveAttributes = new Set([
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"accept",
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"accept-charset",
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"align",
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"alink",
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"axis",
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"bgcolor",
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"charset",
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"checked",
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"clear",
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"codetype",
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"color",
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"compact",
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"declare",
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"defer",
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"dir",
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"direction",
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"disabled",
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"enctype",
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"face",
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"frame",
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"hreflang",
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"http-equiv",
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"lang",
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"language",
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"link",
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"media",
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"method",
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"multiple",
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"nohref",
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"noresize",
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"noshade",
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"nowrap",
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"readonly",
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"rel",
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"rev",
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"rules",
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"scope",
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"scrolling",
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"selected",
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"shape",
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"target",
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"text",
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"type",
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"valign",
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"valuetype",
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"vlink",
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]);
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function shouldIgnoreCase(selector, options) {
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return typeof selector.ignoreCase === "boolean"
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? selector.ignoreCase
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: selector.ignoreCase === "quirks"
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? !!options.quirksMode
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: !options.xmlMode && caseInsensitiveAttributes.has(selector.name);
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}
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/**
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* Attribute selectors
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*/
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export const attributeRules = {
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equals(next, data, options) {
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const { adapter } = options;
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const { name } = data;
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let { value } = data;
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if (shouldIgnoreCase(data, options)) {
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value = value.toLowerCase();
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return (elem) => {
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const attr = adapter.getAttributeValue(elem, name);
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return (attr != null &&
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attr.length === value.length &&
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attr.toLowerCase() === value &&
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next(elem));
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};
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}
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return (elem) => adapter.getAttributeValue(elem, name) === value && next(elem);
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},
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hyphen(next, data, options) {
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const { adapter } = options;
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const { name } = data;
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let { value } = data;
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const len = value.length;
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if (shouldIgnoreCase(data, options)) {
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value = value.toLowerCase();
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return function hyphenIC(elem) {
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const attr = adapter.getAttributeValue(elem, name);
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return (attr != null &&
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(attr.length === len || attr.charAt(len) === "-") &&
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attr.substr(0, len).toLowerCase() === value &&
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next(elem));
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};
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}
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return function hyphen(elem) {
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const attr = adapter.getAttributeValue(elem, name);
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return (attr != null &&
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(attr.length === len || attr.charAt(len) === "-") &&
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attr.substr(0, len) === value &&
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next(elem));
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};
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},
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element(next, data, options) {
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const { adapter } = options;
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const { name, value } = data;
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if (/\s/.test(value)) {
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return boolbase.falseFunc;
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}
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const regex = new RegExp(`(?:^|\\s)${escapeRegex(value)}(?:$|\\s)`, shouldIgnoreCase(data, options) ? "i" : "");
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return function element(elem) {
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const attr = adapter.getAttributeValue(elem, name);
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return (attr != null &&
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attr.length >= value.length &&
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regex.test(attr) &&
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next(elem));
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};
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},
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exists(next, { name }, { adapter }) {
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return (elem) => adapter.hasAttrib(elem, name) && next(elem);
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},
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start(next, data, options) {
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const { adapter } = options;
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const { name } = data;
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let { value } = data;
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const len = value.length;
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if (len === 0) {
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return boolbase.falseFunc;
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}
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if (shouldIgnoreCase(data, options)) {
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value = value.toLowerCase();
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return (elem) => {
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const attr = adapter.getAttributeValue(elem, name);
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return (attr != null &&
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attr.length >= len &&
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attr.substr(0, len).toLowerCase() === value &&
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next(elem));
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};
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}
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return (elem) => {
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var _a;
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return !!((_a = adapter.getAttributeValue(elem, name)) === null || _a === void 0 ? void 0 : _a.startsWith(value)) &&
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next(elem);
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};
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},
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end(next, data, options) {
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const { adapter } = options;
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const { name } = data;
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let { value } = data;
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const len = -value.length;
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if (len === 0) {
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return boolbase.falseFunc;
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}
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if (shouldIgnoreCase(data, options)) {
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value = value.toLowerCase();
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return (elem) => {
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var _a;
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return ((_a = adapter
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.getAttributeValue(elem, name)) === null || _a === void 0 ? void 0 : _a.substr(len).toLowerCase()) === value && next(elem);
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};
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}
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return (elem) => {
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var _a;
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return !!((_a = adapter.getAttributeValue(elem, name)) === null || _a === void 0 ? void 0 : _a.endsWith(value)) &&
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next(elem);
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};
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},
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any(next, data, options) {
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const { adapter } = options;
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const { name, value } = data;
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if (value === "") {
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return boolbase.falseFunc;
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}
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if (shouldIgnoreCase(data, options)) {
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const regex = new RegExp(escapeRegex(value), "i");
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return function anyIC(elem) {
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const attr = adapter.getAttributeValue(elem, name);
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return (attr != null &&
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attr.length >= value.length &&
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regex.test(attr) &&
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next(elem));
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};
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}
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return (elem) => {
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var _a;
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return !!((_a = adapter.getAttributeValue(elem, name)) === null || _a === void 0 ? void 0 : _a.includes(value)) &&
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next(elem);
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};
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},
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not(next, data, options) {
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const { adapter } = options;
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const { name } = data;
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let { value } = data;
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if (value === "") {
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return (elem) => !!adapter.getAttributeValue(elem, name) && next(elem);
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}
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else if (shouldIgnoreCase(data, options)) {
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value = value.toLowerCase();
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return (elem) => {
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const attr = adapter.getAttributeValue(elem, name);
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return ((attr == null ||
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attr.length !== value.length ||
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attr.toLowerCase() !== value) &&
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next(elem));
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};
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}
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return (elem) => adapter.getAttributeValue(elem, name) !== value && next(elem);
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},
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};
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//# sourceMappingURL=attributes.js.map
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