433 lines
16 KiB
JavaScript
Vendored
433 lines
16 KiB
JavaScript
Vendored
"use strict";
|
|
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
|
|
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
|
|
if (ar || !(i in from)) {
|
|
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
|
|
ar[i] = from[i];
|
|
}
|
|
}
|
|
return to.concat(ar || Array.prototype.slice.call(from));
|
|
};
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.isTraversal = void 0;
|
|
var reName = /^[^\\#]?(?:\\(?:[\da-f]{1,6}\s?|.)|[\w\-\u00b0-\uFFFF])+/;
|
|
var reEscape = /\\([\da-f]{1,6}\s?|(\s)|.)/gi;
|
|
var actionTypes = new Map([
|
|
["~", "element"],
|
|
["^", "start"],
|
|
["$", "end"],
|
|
["*", "any"],
|
|
["!", "not"],
|
|
["|", "hyphen"],
|
|
]);
|
|
var Traversals = {
|
|
">": "child",
|
|
"<": "parent",
|
|
"~": "sibling",
|
|
"+": "adjacent",
|
|
};
|
|
var attribSelectors = {
|
|
"#": ["id", "equals"],
|
|
".": ["class", "element"],
|
|
};
|
|
// Pseudos, whose data property is parsed as well.
|
|
var unpackPseudos = new Set([
|
|
"has",
|
|
"not",
|
|
"matches",
|
|
"is",
|
|
"where",
|
|
"host",
|
|
"host-context",
|
|
]);
|
|
var traversalNames = new Set(__spreadArray([
|
|
"descendant"
|
|
], Object.keys(Traversals).map(function (k) { return Traversals[k]; }), true));
|
|
/**
|
|
* Attributes that are case-insensitive in HTML.
|
|
*
|
|
* @private
|
|
* @see https://html.spec.whatwg.org/multipage/semantics-other.html#case-sensitivity-of-selectors
|
|
*/
|
|
var caseInsensitiveAttributes = new Set([
|
|
"accept",
|
|
"accept-charset",
|
|
"align",
|
|
"alink",
|
|
"axis",
|
|
"bgcolor",
|
|
"charset",
|
|
"checked",
|
|
"clear",
|
|
"codetype",
|
|
"color",
|
|
"compact",
|
|
"declare",
|
|
"defer",
|
|
"dir",
|
|
"direction",
|
|
"disabled",
|
|
"enctype",
|
|
"face",
|
|
"frame",
|
|
"hreflang",
|
|
"http-equiv",
|
|
"lang",
|
|
"language",
|
|
"link",
|
|
"media",
|
|
"method",
|
|
"multiple",
|
|
"nohref",
|
|
"noresize",
|
|
"noshade",
|
|
"nowrap",
|
|
"readonly",
|
|
"rel",
|
|
"rev",
|
|
"rules",
|
|
"scope",
|
|
"scrolling",
|
|
"selected",
|
|
"shape",
|
|
"target",
|
|
"text",
|
|
"type",
|
|
"valign",
|
|
"valuetype",
|
|
"vlink",
|
|
]);
|
|
/**
|
|
* Checks whether a specific selector is a traversal.
|
|
* This is useful eg. in swapping the order of elements that
|
|
* are not traversals.
|
|
*
|
|
* @param selector Selector to check.
|
|
*/
|
|
function isTraversal(selector) {
|
|
return traversalNames.has(selector.type);
|
|
}
|
|
exports.isTraversal = isTraversal;
|
|
var stripQuotesFromPseudos = new Set(["contains", "icontains"]);
|
|
var quotes = new Set(['"', "'"]);
|
|
// Unescape function taken from https://github.com/jquery/sizzle/blob/master/src/sizzle.js#L152
|
|
function funescape(_, escaped, escapedWhitespace) {
|
|
var high = parseInt(escaped, 16) - 0x10000;
|
|
// NaN means non-codepoint
|
|
return high !== high || escapedWhitespace
|
|
? escaped
|
|
: high < 0
|
|
? // BMP codepoint
|
|
String.fromCharCode(high + 0x10000)
|
|
: // Supplemental Plane codepoint (surrogate pair)
|
|
String.fromCharCode((high >> 10) | 0xd800, (high & 0x3ff) | 0xdc00);
|
|
}
|
|
function unescapeCSS(str) {
|
|
return str.replace(reEscape, funescape);
|
|
}
|
|
function isWhitespace(c) {
|
|
return c === " " || c === "\n" || c === "\t" || c === "\f" || c === "\r";
|
|
}
|
|
/**
|
|
* Parses `selector`, optionally with the passed `options`.
|
|
*
|
|
* @param selector Selector to parse.
|
|
* @param options Options for parsing.
|
|
* @returns Returns a two-dimensional array.
|
|
* The first dimension represents selectors separated by commas (eg. `sub1, sub2`),
|
|
* the second contains the relevant tokens for that selector.
|
|
*/
|
|
function parse(selector, options) {
|
|
var subselects = [];
|
|
var endIndex = parseSelector(subselects, "" + selector, options, 0);
|
|
if (endIndex < selector.length) {
|
|
throw new Error("Unmatched selector: " + selector.slice(endIndex));
|
|
}
|
|
return subselects;
|
|
}
|
|
exports.default = parse;
|
|
function parseSelector(subselects, selector, options, selectorIndex) {
|
|
var _a, _b;
|
|
if (options === void 0) { options = {}; }
|
|
var tokens = [];
|
|
var sawWS = false;
|
|
function getName(offset) {
|
|
var match = selector.slice(selectorIndex + offset).match(reName);
|
|
if (!match) {
|
|
throw new Error("Expected name, found " + selector.slice(selectorIndex));
|
|
}
|
|
var name = match[0];
|
|
selectorIndex += offset + name.length;
|
|
return unescapeCSS(name);
|
|
}
|
|
function stripWhitespace(offset) {
|
|
while (isWhitespace(selector.charAt(selectorIndex + offset)))
|
|
offset++;
|
|
selectorIndex += offset;
|
|
}
|
|
function isEscaped(pos) {
|
|
var slashCount = 0;
|
|
while (selector.charAt(--pos) === "\\")
|
|
slashCount++;
|
|
return (slashCount & 1) === 1;
|
|
}
|
|
function ensureNotTraversal() {
|
|
if (tokens.length > 0 && isTraversal(tokens[tokens.length - 1])) {
|
|
throw new Error("Did not expect successive traversals.");
|
|
}
|
|
}
|
|
stripWhitespace(0);
|
|
while (selector !== "") {
|
|
var firstChar = selector.charAt(selectorIndex);
|
|
if (isWhitespace(firstChar)) {
|
|
sawWS = true;
|
|
stripWhitespace(1);
|
|
}
|
|
else if (firstChar in Traversals) {
|
|
ensureNotTraversal();
|
|
tokens.push({ type: Traversals[firstChar] });
|
|
sawWS = false;
|
|
stripWhitespace(1);
|
|
}
|
|
else if (firstChar === ",") {
|
|
if (tokens.length === 0) {
|
|
throw new Error("Empty sub-selector");
|
|
}
|
|
subselects.push(tokens);
|
|
tokens = [];
|
|
sawWS = false;
|
|
stripWhitespace(1);
|
|
}
|
|
else if (selector.startsWith("/*", selectorIndex)) {
|
|
var endIndex = selector.indexOf("*/", selectorIndex + 2);
|
|
if (endIndex < 0) {
|
|
throw new Error("Comment was not terminated");
|
|
}
|
|
selectorIndex = endIndex + 2;
|
|
}
|
|
else {
|
|
if (sawWS) {
|
|
ensureNotTraversal();
|
|
tokens.push({ type: "descendant" });
|
|
sawWS = false;
|
|
}
|
|
if (firstChar in attribSelectors) {
|
|
var _c = attribSelectors[firstChar], name_1 = _c[0], action = _c[1];
|
|
tokens.push({
|
|
type: "attribute",
|
|
name: name_1,
|
|
action: action,
|
|
value: getName(1),
|
|
namespace: null,
|
|
// TODO: Add quirksMode option, which makes `ignoreCase` `true` for HTML.
|
|
ignoreCase: options.xmlMode ? null : false,
|
|
});
|
|
}
|
|
else if (firstChar === "[") {
|
|
stripWhitespace(1);
|
|
// Determine attribute name and namespace
|
|
var namespace = null;
|
|
if (selector.charAt(selectorIndex) === "|") {
|
|
namespace = "";
|
|
selectorIndex += 1;
|
|
}
|
|
if (selector.startsWith("*|", selectorIndex)) {
|
|
namespace = "*";
|
|
selectorIndex += 2;
|
|
}
|
|
var name_2 = getName(0);
|
|
if (namespace === null &&
|
|
selector.charAt(selectorIndex) === "|" &&
|
|
selector.charAt(selectorIndex + 1) !== "=") {
|
|
namespace = name_2;
|
|
name_2 = getName(1);
|
|
}
|
|
if ((_a = options.lowerCaseAttributeNames) !== null && _a !== void 0 ? _a : !options.xmlMode) {
|
|
name_2 = name_2.toLowerCase();
|
|
}
|
|
stripWhitespace(0);
|
|
// Determine comparison operation
|
|
var action = "exists";
|
|
var possibleAction = actionTypes.get(selector.charAt(selectorIndex));
|
|
if (possibleAction) {
|
|
action = possibleAction;
|
|
if (selector.charAt(selectorIndex + 1) !== "=") {
|
|
throw new Error("Expected `=`");
|
|
}
|
|
stripWhitespace(2);
|
|
}
|
|
else if (selector.charAt(selectorIndex) === "=") {
|
|
action = "equals";
|
|
stripWhitespace(1);
|
|
}
|
|
// Determine value
|
|
var value = "";
|
|
var ignoreCase = null;
|
|
if (action !== "exists") {
|
|
if (quotes.has(selector.charAt(selectorIndex))) {
|
|
var quote = selector.charAt(selectorIndex);
|
|
var sectionEnd = selectorIndex + 1;
|
|
while (sectionEnd < selector.length &&
|
|
(selector.charAt(sectionEnd) !== quote ||
|
|
isEscaped(sectionEnd))) {
|
|
sectionEnd += 1;
|
|
}
|
|
if (selector.charAt(sectionEnd) !== quote) {
|
|
throw new Error("Attribute value didn't end");
|
|
}
|
|
value = unescapeCSS(selector.slice(selectorIndex + 1, sectionEnd));
|
|
selectorIndex = sectionEnd + 1;
|
|
}
|
|
else {
|
|
var valueStart = selectorIndex;
|
|
while (selectorIndex < selector.length &&
|
|
((!isWhitespace(selector.charAt(selectorIndex)) &&
|
|
selector.charAt(selectorIndex) !== "]") ||
|
|
isEscaped(selectorIndex))) {
|
|
selectorIndex += 1;
|
|
}
|
|
value = unescapeCSS(selector.slice(valueStart, selectorIndex));
|
|
}
|
|
stripWhitespace(0);
|
|
// See if we have a force ignore flag
|
|
var forceIgnore = selector.charAt(selectorIndex);
|
|
// If the forceIgnore flag is set (either `i` or `s`), use that value
|
|
if (forceIgnore === "s" || forceIgnore === "S") {
|
|
ignoreCase = false;
|
|
stripWhitespace(1);
|
|
}
|
|
else if (forceIgnore === "i" || forceIgnore === "I") {
|
|
ignoreCase = true;
|
|
stripWhitespace(1);
|
|
}
|
|
}
|
|
// If `xmlMode` is set, there are no rules; otherwise, use the `caseInsensitiveAttributes` list.
|
|
if (!options.xmlMode) {
|
|
// TODO: Skip this for `exists`, as there is no value to compare to.
|
|
ignoreCase !== null && ignoreCase !== void 0 ? ignoreCase : (ignoreCase = caseInsensitiveAttributes.has(name_2));
|
|
}
|
|
if (selector.charAt(selectorIndex) !== "]") {
|
|
throw new Error("Attribute selector didn't terminate");
|
|
}
|
|
selectorIndex += 1;
|
|
var attributeSelector = {
|
|
type: "attribute",
|
|
name: name_2,
|
|
action: action,
|
|
value: value,
|
|
namespace: namespace,
|
|
ignoreCase: ignoreCase,
|
|
};
|
|
tokens.push(attributeSelector);
|
|
}
|
|
else if (firstChar === ":") {
|
|
if (selector.charAt(selectorIndex + 1) === ":") {
|
|
tokens.push({
|
|
type: "pseudo-element",
|
|
name: getName(2).toLowerCase(),
|
|
});
|
|
continue;
|
|
}
|
|
var name_3 = getName(1).toLowerCase();
|
|
var data = null;
|
|
if (selector.charAt(selectorIndex) === "(") {
|
|
if (unpackPseudos.has(name_3)) {
|
|
if (quotes.has(selector.charAt(selectorIndex + 1))) {
|
|
throw new Error("Pseudo-selector " + name_3 + " cannot be quoted");
|
|
}
|
|
data = [];
|
|
selectorIndex = parseSelector(data, selector, options, selectorIndex + 1);
|
|
if (selector.charAt(selectorIndex) !== ")") {
|
|
throw new Error("Missing closing parenthesis in :" + name_3 + " (" + selector + ")");
|
|
}
|
|
selectorIndex += 1;
|
|
}
|
|
else {
|
|
selectorIndex += 1;
|
|
var start = selectorIndex;
|
|
var counter = 1;
|
|
for (; counter > 0 && selectorIndex < selector.length; selectorIndex++) {
|
|
if (selector.charAt(selectorIndex) === "(" &&
|
|
!isEscaped(selectorIndex)) {
|
|
counter++;
|
|
}
|
|
else if (selector.charAt(selectorIndex) === ")" &&
|
|
!isEscaped(selectorIndex)) {
|
|
counter--;
|
|
}
|
|
}
|
|
if (counter) {
|
|
throw new Error("Parenthesis not matched");
|
|
}
|
|
data = selector.slice(start, selectorIndex - 1);
|
|
if (stripQuotesFromPseudos.has(name_3)) {
|
|
var quot = data.charAt(0);
|
|
if (quot === data.slice(-1) && quotes.has(quot)) {
|
|
data = data.slice(1, -1);
|
|
}
|
|
data = unescapeCSS(data);
|
|
}
|
|
}
|
|
}
|
|
tokens.push({ type: "pseudo", name: name_3, data: data });
|
|
}
|
|
else {
|
|
var namespace = null;
|
|
var name_4 = void 0;
|
|
if (firstChar === "*") {
|
|
selectorIndex += 1;
|
|
name_4 = "*";
|
|
}
|
|
else if (reName.test(selector.slice(selectorIndex))) {
|
|
if (selector.charAt(selectorIndex) === "|") {
|
|
namespace = "";
|
|
selectorIndex += 1;
|
|
}
|
|
name_4 = getName(0);
|
|
}
|
|
else {
|
|
/*
|
|
* We have finished parsing the selector.
|
|
* Remove descendant tokens at the end if they exist,
|
|
* and return the last index, so that parsing can be
|
|
* picked up from here.
|
|
*/
|
|
if (tokens.length &&
|
|
tokens[tokens.length - 1].type === "descendant") {
|
|
tokens.pop();
|
|
}
|
|
addToken(subselects, tokens);
|
|
return selectorIndex;
|
|
}
|
|
if (selector.charAt(selectorIndex) === "|") {
|
|
namespace = name_4;
|
|
if (selector.charAt(selectorIndex + 1) === "*") {
|
|
name_4 = "*";
|
|
selectorIndex += 2;
|
|
}
|
|
else {
|
|
name_4 = getName(1);
|
|
}
|
|
}
|
|
if (name_4 === "*") {
|
|
tokens.push({ type: "universal", namespace: namespace });
|
|
}
|
|
else {
|
|
if ((_b = options.lowerCaseTags) !== null && _b !== void 0 ? _b : !options.xmlMode) {
|
|
name_4 = name_4.toLowerCase();
|
|
}
|
|
tokens.push({ type: "tag", name: name_4, namespace: namespace });
|
|
}
|
|
}
|
|
}
|
|
}
|
|
addToken(subselects, tokens);
|
|
return selectorIndex;
|
|
}
|
|
function addToken(subselects, tokens) {
|
|
if (subselects.length > 0 && tokens.length === 0) {
|
|
throw new Error("Empty sub-selector");
|
|
}
|
|
subselects.push(tokens);
|
|
}
|