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index.js
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index.js
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const { createPlugin } = require('stylelint')
const atRuleParamIndex = require('stylelint/lib/utils/atRuleParamIndex')
const isCustomMediaQuery = require('stylelint/lib/utils/isCustomMediaQuery')
const isStandardSyntaxMediaFeatureName = require('stylelint/lib/utils/isStandardSyntaxMediaFeatureName')
const mediaParser = require('postcss-media-query-parser').default
const report = require('stylelint/lib/utils/report')
const ruleMessages = require('stylelint/lib/utils/ruleMessages')
const validateOptions = require('stylelint/lib/utils/validateOptions')
const rangeContextNodeParser = require('../../utils/rangeContextNodeParser')
const isRangeContextMediaFeature = require('../../utils/isRangeContextMediaFeature')
const ruleName = 'stylistic/media-feature-name-case'
const messages = ruleMessages(ruleName, {
expected: (actual, expected) => `Expected "${actual}" to be "${expected}"`,
})
const meta = {
url: 'https://github.com/elirasza/stylelint-stylistic/tree/main/lib/rules/media-feature-name-case',
fixable: true,
}
/** @type {import('stylelint').Rule} */
const rule = (primary, _secondaryOptions, context) => (root, result) => {
const validOptions = validateOptions(result, ruleName, {
actual: primary,
possible: ['lower', 'upper'],
})
if (!validOptions) {
return
}
root.walkAtRules(/^media$/i, (atRule) => {
let hasComments = atRule.raws.params && atRule.raws.params.raw
const mediaRule = hasComments || atRule.params
mediaParser(mediaRule).walk(/^media-feature$/i, (mediaFeatureNode) => {
const { parent } = mediaFeatureNode
const mediaFeatureRangeContext = isRangeContextMediaFeature(parent.value)
let value
let sourceIndex
if (mediaFeatureRangeContext) {
const parsedRangeContext = rangeContextNodeParser(mediaFeatureNode)
value = parsedRangeContext.name.value
sourceIndex = parsedRangeContext.name.sourceIndex
} else {
value = mediaFeatureNode.value
sourceIndex = mediaFeatureNode.sourceIndex
}
if (!isStandardSyntaxMediaFeatureName(value) || isCustomMediaQuery(value)) {
return
}
const expectedFeatureName = primary === 'lower' ? value.toLowerCase() : value.toUpperCase()
if (value === expectedFeatureName) {
return
}
if (context.fix) {
if (hasComments) {
hasComments = hasComments.slice(0, sourceIndex)
+ expectedFeatureName
+ hasComments.slice(sourceIndex + expectedFeatureName.length)
if (atRule.raws.params == null) {
throw new Error('The `AtRuleRaws` node must have a `params` property')
}
atRule.raws.params.raw = hasComments
} else {
atRule.params = atRule.params.slice(0, sourceIndex)
+ expectedFeatureName
+ atRule.params.slice(sourceIndex + expectedFeatureName.length)
}
return
}
report({
index: atRuleParamIndex(atRule) + sourceIndex,
message: messages.expected(value, expectedFeatureName),
node: atRule,
ruleName,
result,
})
})
})
}
rule.ruleName = ruleName
rule.messages = messages
rule.meta = meta
module.exports = { messages, meta, plugin: createPlugin(ruleName, rule), rule, ruleName }