3 const _ = require("lodash");
4 const report = require("../../utils/report");
5 const ruleMessages = require("../../utils/ruleMessages");
6 const styleSearch = require("style-search");
7 const validateOptions = require("../../utils/validateOptions");
9 const ruleName = "selector-max-empty-lines";
11 const messages = ruleMessages(ruleName, {
13 `Expected no more than ${max} empty ${max === 1 ? "line" : "lines"}`
16 const rule = function(max) {
17 const maxAdjacentNewlines = max + 1;
19 return (root, result) => {
20 const validOptions = validateOptions(result, ruleName, {
28 root.walkRules(rule => {
29 const selector = rule.raws.selector
30 ? rule.raws.selector.raw
32 const repeatLFNewLines = _.repeat("\n", maxAdjacentNewlines);
33 const repeatCRLFNewLines = _.repeat("\r\n", maxAdjacentNewlines);
35 styleSearch({ source: selector, target: "\n" }, match => {
37 selector.substr(match.startIndex + 1, maxAdjacentNewlines) ===
39 selector.substr(match.startIndex + 1, maxAdjacentNewlines * 2) ===
42 // Put index at `\r` if it's CRLF, otherwise leave it at `\n`
43 let index = match.startIndex;
44 if (selector[index - 1] === "\r") {
49 message: messages.expected(max),
61 rule.ruleName = ruleName;
62 rule.messages = messages;
63 module.exports = rule;