--- /dev/null
+"use strict";
+
+const isStandardSyntaxRule = require("../../utils/isStandardSyntaxRule");
+const report = require("../../utils/report");
+const ruleMessages = require("../../utils/ruleMessages");
+const styleSearch = require("style-search");
+const validateOptions = require("../../utils/validateOptions");
+const whitespaceChecker = require("../../utils/whitespaceChecker");
+
+const ruleName = "selector-list-comma-newline-after";
+
+const messages = ruleMessages(ruleName, {
+ expectedAfter: () => 'Expected newline after ","',
+ expectedAfterMultiLine: () =>
+ 'Expected newline after "," in a multi-line list',
+ rejectedAfterMultiLine: () =>
+ 'Unexpected whitespace after "," in a multi-line list'
+});
+
+const rule = function(expectation) {
+ const checker = whitespaceChecker("newline", expectation, messages);
+ return (root, result) => {
+ const validOptions = validateOptions(result, ruleName, {
+ actual: expectation,
+ possible: ["always", "always-multi-line", "never-multi-line"]
+ });
+ if (!validOptions) {
+ return;
+ }
+
+ root.walkRules(rule => {
+ if (!isStandardSyntaxRule(rule)) {
+ return;
+ }
+ // Get raw selector so we can allow end-of-line comments, e.g.
+ // a, /* comment */
+ // b {}
+ const selector = rule.raws.selector
+ ? rule.raws.selector.raw
+ : rule.selector;
+ styleSearch(
+ {
+ source: selector,
+ target: ",",
+ functionArguments: "skip"
+ },
+ match => {
+ const nextChars = selector.substr(
+ match.endIndex,
+ selector.length - match.endIndex
+ );
+
+ // If there's a // comment, that means there has to be a newline
+ // ending the comment so we're fine
+ if (nextChars.match(/^\s+\/\//)) {
+ return;
+ }
+
+ // If there are spaces and then a comment begins, look for the newline
+ const indextoCheckAfter = nextChars.match(/^\s+\/\*/)
+ ? selector.indexOf("*/", match.endIndex) + 1
+ : match.startIndex;
+ checker.afterOneOnly({
+ source: selector,
+ index: indextoCheckAfter,
+ err: m =>
+ report({
+ message: m,
+ node: rule,
+ index: match.startIndex,
+ result,
+ ruleName
+ })
+ });
+ }
+ );
+ });
+ };
+};
+
+rule.ruleName = ruleName;
+rule.messages = messages;
+module.exports = rule;