139 lines
5.3 KiB
JavaScript
139 lines
5.3 KiB
JavaScript
"use strict";
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var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
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if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
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if (ar || !(i in from)) {
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if (!ar) ar = Array.prototype.slice.call(from, 0, i);
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ar[i] = from[i];
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}
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}
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return to.concat(ar || Array.prototype.slice.call(from));
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.stringify = void 0;
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var types_1 = require("./types");
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var attribValChars = ["\\", '"'];
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var pseudoValChars = __spreadArray(__spreadArray([], attribValChars, true), ["(", ")"], false);
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var charsToEscapeInAttributeValue = new Set(attribValChars.map(function (c) { return c.charCodeAt(0); }));
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var charsToEscapeInPseudoValue = new Set(pseudoValChars.map(function (c) { return c.charCodeAt(0); }));
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var charsToEscapeInName = new Set(__spreadArray(__spreadArray([], pseudoValChars, true), [
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"~",
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"^",
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"$",
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"*",
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"+",
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"!",
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"|",
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":",
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"[",
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"]",
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" ",
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".",
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], false).map(function (c) { return c.charCodeAt(0); }));
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/**
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* Turns `selector` back into a string.
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*
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* @param selector Selector to stringify.
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*/
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function stringify(selector) {
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return selector
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.map(function (token) { return token.map(stringifyToken).join(""); })
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.join(", ");
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}
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exports.stringify = stringify;
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function stringifyToken(token, index, arr) {
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switch (token.type) {
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// Simple types
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case types_1.SelectorType.Child:
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return index === 0 ? "> " : " > ";
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case types_1.SelectorType.Parent:
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return index === 0 ? "< " : " < ";
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case types_1.SelectorType.Sibling:
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return index === 0 ? "~ " : " ~ ";
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case types_1.SelectorType.Adjacent:
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return index === 0 ? "+ " : " + ";
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case types_1.SelectorType.Descendant:
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return " ";
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case types_1.SelectorType.ColumnCombinator:
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return index === 0 ? "|| " : " || ";
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case types_1.SelectorType.Universal:
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// Return an empty string if the selector isn't needed.
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return token.namespace === "*" &&
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index + 1 < arr.length &&
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"name" in arr[index + 1]
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? ""
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: "".concat(getNamespace(token.namespace), "*");
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case types_1.SelectorType.Tag:
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return getNamespacedName(token);
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case types_1.SelectorType.PseudoElement:
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return "::".concat(escapeName(token.name, charsToEscapeInName)).concat(token.data === null
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? ""
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: "(".concat(escapeName(token.data, charsToEscapeInPseudoValue), ")"));
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case types_1.SelectorType.Pseudo:
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return ":".concat(escapeName(token.name, charsToEscapeInName)).concat(token.data === null
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? ""
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: "(".concat(typeof token.data === "string"
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? escapeName(token.data, charsToEscapeInPseudoValue)
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: stringify(token.data), ")"));
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case types_1.SelectorType.Attribute: {
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if (token.name === "id" &&
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token.action === types_1.AttributeAction.Equals &&
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token.ignoreCase === "quirks" &&
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!token.namespace) {
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return "#".concat(escapeName(token.value, charsToEscapeInName));
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}
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if (token.name === "class" &&
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token.action === types_1.AttributeAction.Element &&
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token.ignoreCase === "quirks" &&
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!token.namespace) {
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return ".".concat(escapeName(token.value, charsToEscapeInName));
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}
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var name_1 = getNamespacedName(token);
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if (token.action === types_1.AttributeAction.Exists) {
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return "[".concat(name_1, "]");
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}
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return "[".concat(name_1).concat(getActionValue(token.action), "=\"").concat(escapeName(token.value, charsToEscapeInAttributeValue), "\"").concat(token.ignoreCase === null ? "" : token.ignoreCase ? " i" : " s", "]");
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}
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}
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}
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function getActionValue(action) {
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switch (action) {
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case types_1.AttributeAction.Equals:
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return "";
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case types_1.AttributeAction.Element:
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return "~";
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case types_1.AttributeAction.Start:
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return "^";
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case types_1.AttributeAction.End:
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return "$";
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case types_1.AttributeAction.Any:
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return "*";
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case types_1.AttributeAction.Not:
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return "!";
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case types_1.AttributeAction.Hyphen:
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return "|";
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case types_1.AttributeAction.Exists:
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throw new Error("Shouldn't be here");
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}
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}
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function getNamespacedName(token) {
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return "".concat(getNamespace(token.namespace)).concat(escapeName(token.name, charsToEscapeInName));
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}
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function getNamespace(namespace) {
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return namespace !== null
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? "".concat(namespace === "*"
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? "*"
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: escapeName(namespace, charsToEscapeInName), "|")
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: "";
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}
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function escapeName(str, charsToEscape) {
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var lastIdx = 0;
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var ret = "";
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for (var i = 0; i < str.length; i++) {
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if (charsToEscape.has(str.charCodeAt(i))) {
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ret += "".concat(str.slice(lastIdx, i), "\\").concat(str.charAt(i));
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lastIdx = i + 1;
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}
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}
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return ret.length > 0 ? ret + str.slice(lastIdx) : str;
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}
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