--- /dev/null
+"use strict";
+
+const isStandardSyntaxRule = require("../../utils/isStandardSyntaxRule");
+const isStandardSyntaxSelector = require("../../utils/isStandardSyntaxSelector");
+const parseSelector = require("../../utils/parseSelector");
+const report = require("../../utils/report");
+const ruleMessages = require("../../utils/ruleMessages");
+const validateOptions = require("../../utils/validateOptions");
+
+const ruleName = "selector-attribute-quotes";
+
+const messages = ruleMessages(ruleName, {
+ expected: value => `Expected quotes around "${value}"`,
+ rejected: value => `Unexpected quotes around "${value}"`
+});
+
+const rule = function(expectation) {
+ return (root, result) => {
+ const validOptions = validateOptions(result, ruleName, {
+ actual: expectation,
+ possible: ["always", "never"]
+ });
+ if (!validOptions) {
+ return;
+ }
+
+ root.walkRules(rule => {
+ if (!isStandardSyntaxRule(rule)) {
+ return;
+ }
+ if (!isStandardSyntaxSelector(rule.selector)) {
+ return;
+ }
+ if (
+ rule.selector.indexOf("[") === -1 ||
+ rule.selector.indexOf("=") === -1
+ ) {
+ return;
+ }
+ parseSelector(rule.selector, result, rule, selectorTree => {
+ selectorTree.walkAttributes(attributeNode => {
+ if (!attributeNode.operator) {
+ return;
+ }
+
+ const attributeSelectorString = attributeNode.toString();
+
+ if (!attributeNode.quoted && expectation === "always") {
+ complain(
+ messages.expected(attributeNode.raws.unquoted),
+ attributeNode.sourceIndex +
+ attributeSelectorString.indexOf(attributeNode.value)
+ );
+ }
+
+ if (attributeNode.quoted && expectation === "never") {
+ complain(
+ messages.rejected(attributeNode.raws.unquoted),
+ attributeNode.sourceIndex +
+ attributeSelectorString.indexOf(attributeNode.value)
+ );
+ }
+ });
+ });
+
+ function complain(message, index) {
+ report({
+ message,
+ index,
+ result,
+ ruleName,
+ node: rule
+ });
+ }
+ });
+ };
+};
+
+rule.ruleName = ruleName;
+rule.messages = messages;
+module.exports = rule;