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92 lines
2.4 KiB
92 lines
2.4 KiB
// @ts-nocheck |
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'use strict'; |
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const atRuleParamIndex = require('../../utils/atRuleParamIndex'); |
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const findMediaOperator = require('../findMediaOperator'); |
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const report = require('../../utils/report'); |
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const ruleMessages = require('../../utils/ruleMessages'); |
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const validateOptions = require('../../utils/validateOptions'); |
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const whitespaceChecker = require('../../utils/whitespaceChecker'); |
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const ruleName = 'media-feature-range-operator-space-before'; |
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const messages = ruleMessages(ruleName, { |
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expectedBefore: () => 'Expected single space before range operator', |
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rejectedBefore: () => 'Unexpected whitespace before range operator', |
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}); |
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function rule(expectation, options, context) { |
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const checker = whitespaceChecker('space', expectation, messages); |
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return (root, result) => { |
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const validOptions = validateOptions(result, ruleName, { |
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actual: expectation, |
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possible: ['always', 'never'], |
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}); |
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if (!validOptions) { |
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return; |
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} |
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root.walkAtRules(/^media$/i, (atRule) => { |
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const fixOperatorIndices = []; |
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const fix = context.fix ? (index) => fixOperatorIndices.push(index) : null; |
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findMediaOperator(atRule, (match, params, node) => { |
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checkBeforeOperator(match, params, node, fix); |
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}); |
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if (fixOperatorIndices.length) { |
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let params = atRule.raws.params ? atRule.raws.params.raw : atRule.params; |
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fixOperatorIndices |
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.sort((a, b) => b - a) |
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.forEach((index) => { |
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const beforeOperator = params.slice(0, index); |
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const afterOperator = params.slice(index); |
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if (expectation === 'always') { |
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params = beforeOperator.replace(/\s*$/, ' ') + afterOperator; |
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} else if (expectation === 'never') { |
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params = beforeOperator.replace(/\s*$/, '') + afterOperator; |
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} |
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}); |
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if (atRule.raws.params) { |
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atRule.raws.params.raw = params; |
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} else { |
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atRule.params = params; |
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} |
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} |
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}); |
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function checkBeforeOperator(match, params, node, fix) { |
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// The extra `+ 1` is because the match itself contains |
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// the character before the operator |
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checker.before({ |
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source: params, |
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index: match.startIndex, |
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err: (m) => { |
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if (fix) { |
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fix(match.startIndex); |
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return; |
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} |
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report({ |
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message: m, |
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node, |
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index: match.startIndex - 1 + atRuleParamIndex(node), |
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result, |
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ruleName, |
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}); |
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}, |
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}); |
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} |
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}; |
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} |
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rule.ruleName = ruleName; |
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rule.messages = messages; |
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module.exports = rule;
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