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node_modules/stylelint/lib/rules/media-feature-no-missing-punctuation/README.md

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+# media-feature-no-missing-punctuation
+
+***Deprecated: See [CHANGELOG](../../../CHANGELOG.md).***
+
+Disallow missing punctuation for non-boolean media features.
+
+```css
+@media (max-width: 600px) {}
+/**              ↑
+ * This punctuation */
+```
+
+This rule ensures that there is either a colon or a range operator in non-boolean media features.
+
+## Options
+
+### `true`
+
+The following patterns are considered warnings:
+
+```css
+@media (max-width 600px) {}
+```
+
+```css
+@media (width   20em) {}
+```
+
+The following patterns are *not* considered warnings:
+
+```css
+@media (max-width: 600px) {}
+```
+
+```css
+@media (width  >=  20em) {}
+```

node_modules/stylelint/lib/rules/media-feature-no-missing-punctuation/index.js

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+"use strict"
+
+const atRuleParamIndex = require("../../utils/atRuleParamIndex")
+const isStandardSyntaxMediaFeature = require("../../utils/isStandardSyntaxMediaFeature")
+const report = require("../../utils/report")
+const ruleMessages = require("../../utils/ruleMessages")
+const validateOptions = require("../../utils/validateOptions")
+const execall = require("execall")
+const punctuationSets = require("../../reference/punctuationSets")
+
+const ruleName = "media-feature-no-missing-punctuation"
+
+const messages = ruleMessages(ruleName, {
+  rejected: "Unexpected missing punctuation",
+})
+
+function isPunctuation(str) {
+  return punctuationSets.mediaFeaturePunctuation.has(str)
+}
+
+function endsWithPunctuation(str) {
+  return isPunctuation(str.slice(-1)) || isPunctuation(str.slice(-2))
+}
+
+function startsWithPunctuation(str) {
+  return isPunctuation(str[0]) || isPunctuation(str.slice(0, 2))
+}
+
+const rule = function (actual) {
+  return (root, result) => {
+    const validOptions = validateOptions(result, ruleName, { actual })
+    if (!validOptions) {
+      return
+    }
+
+    result.warn((
+      "'media-feature-no-missing-punctuation' has been deprecated and in 8.0 will be removed."
+    ), {
+      stylelintType: "deprecation",
+      stylelintReference: "https://stylelint.io/user-guide/rules/media-feature-no-missing-punctuation/",
+    })
+
+    root.walkAtRules(/^media$/i, atRule => {
+      execall(/\((.*?)\)/g, atRule.params).forEach(mediaFeatureMatch => {
+        if (!isStandardSyntaxMediaFeature(mediaFeatureMatch.match)) {
+          return
+        }
+
+        const splitMediaFeature = mediaFeatureMatch.sub[0].trim().split(/\s+/)
+        if (splitMediaFeature.length === 1) {
+          return
+        }
+
+        // Ignore the last one
+        for (let i = 0, l = splitMediaFeature.length - 1; i < l; i++) {
+          const mediaFeaturePart = splitMediaFeature[i]
+
+          // This part is valid if it is punctuation,
+          // it ends with punctuation,
+          // the next part is punctuation,
+          // or the next part begins with punctuation
+          if (isPunctuation(mediaFeaturePart)) {
+            continue
+          }
+          if (endsWithPunctuation(mediaFeaturePart)) {
+            continue
+          }
+          const nextPart = splitMediaFeature[i + 1]
+          if (isPunctuation(nextPart)) {
+            continue
+          }
+          if (startsWithPunctuation(nextPart)) {
+            continue
+          }
+
+          return report({
+            result,
+            ruleName,
+            message: messages.rejected,
+            node: atRule,
+            index: atRuleParamIndex(atRule) + mediaFeatureMatch.index,
+          })
+        }
+      })
+    })
+  }
+}
+
+rule.ruleName = ruleName
+rule.messages = messages
+module.exports = rule