| "use strict"; |
| |
| const ruleMessages = require("../../utils/ruleMessages"); |
| const selectorListCommaWhitespaceChecker = require("../selectorListCommaWhitespaceChecker"); |
| const validateOptions = require("../../utils/validateOptions"); |
| const whitespaceChecker = require("../../utils/whitespaceChecker"); |
| |
| const ruleName = "selector-list-comma-newline-before"; |
| |
| const messages = ruleMessages(ruleName, { |
| expectedBefore: () => 'Expected newline before ","', |
| expectedBeforeMultiLine: () => |
| 'Expected newline before "," in a multi-line list', |
| rejectedBeforeMultiLine: () => |
| 'Unexpected whitespace before "," in a multi-line list' |
| }); |
| |
| const rule = function(expectation, options, context) { |
| 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; |
| } |
| |
| let fixData; |
| |
| selectorListCommaWhitespaceChecker({ |
| root, |
| result, |
| locationChecker: checker.beforeAllowingIndentation, |
| checkedRuleName: ruleName, |
| fix: context.fix |
| ? (ruleNode, index) => { |
| fixData = fixData || new Map(); |
| const commaIndices = fixData.get(ruleNode) || []; |
| |
| commaIndices.push(index); |
| fixData.set(ruleNode, commaIndices); |
| |
| return true; |
| } |
| : null |
| }); |
| |
| if (fixData) { |
| fixData.forEach((commaIndices, ruleNode) => { |
| let selector = ruleNode.raws.selector |
| ? ruleNode.raws.selector.raw |
| : ruleNode.selector; |
| |
| commaIndices |
| .sort((a, b) => b - a) |
| .forEach(index => { |
| let beforeSelector = selector.slice(0, index); |
| const afterSelector = selector.slice(index); |
| |
| if (expectation.indexOf("always") === 0) { |
| const spaceIndex = beforeSelector.search(/\s+$/); |
| |
| if (spaceIndex >= 0) { |
| beforeSelector = |
| beforeSelector.slice(0, spaceIndex) + |
| context.newline + |
| beforeSelector.slice(spaceIndex); |
| } else { |
| beforeSelector = beforeSelector + context.newline; |
| } |
| } else if (expectation === "never-multi-line") { |
| beforeSelector = beforeSelector.replace(/\s*$/, ""); |
| } |
| |
| selector = beforeSelector + afterSelector; |
| }); |
| |
| if (ruleNode.raws.selector) { |
| ruleNode.raws.selector.raw = selector; |
| } else { |
| ruleNode.selector = selector; |
| } |
| }); |
| } |
| }; |
| }; |
| |
| rule.ruleName = ruleName; |
| rule.messages = messages; |
| module.exports = rule; |