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node_modules/stylelint/lib/rules/block-no-single-line/README.md

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+# block-no-single-line
+
+***Deprecated: instead use the [block-opening-brace-newline-after](../block-opening-brace-newline-after/README.md#always) and [block-closing-brace-newline-before](../block-closing-brace-newline-before/README.md#always) rules with the option `"always"`. See [the FAQs for an example](../../../docs/user-guide/faq.md#how-do-i-disallow-single-line-blocks).***
+
+Disallow single-line blocks.
+
+```css
+  a { color: pink; top: 0; }
+/** ↑                      ↑
+ * Declaration blocks like this */
+```
+
+## Options
+
+### `true`
+
+The following patterns are considered warnings:
+
+```css
+a { color: pink; }
+```
+
+```css
+a,
+b { color: pink; }
+```
+
+```css
+a { color: pink; top: 1px; }
+```
+
+```css
+@media print { a { color: pink; } }
+```
+
+```css
+@media print {
+  a { color: pink; }
+}
+```
+
+```css
+a {
+  color: red;
+  @media print { color: pink; }
+}
+```
+
+The following patterns are *not* considered warnings:
+
+```css
+a {
+  color: pink;
+}
+```
+
+```css
+a, b {
+  color: pink;
+}
+```
+
+```css
+@media print {
+ a {
+   color: pink;
+ }
+}
+```
+
+```css
+a {
+  color: red;
+  @media print {
+    color: pink;
+  }
+}
+```

node_modules/stylelint/lib/rules/block-no-single-line/index.js

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+"use strict"
+
+const beforeBlockString = require("../../utils/beforeBlockString")
+const blockString = require("../../utils/blockString")
+const hasBlock = require("../../utils/hasBlock")
+const hasEmptyBlock = require("../../utils/hasEmptyBlock")
+const isSingleLineString = require("../../utils/isSingleLineString")
+const report = require("../../utils/report")
+const ruleMessages = require("../../utils/ruleMessages")
+const validateOptions = require("../../utils/validateOptions")
+
+const ruleName = "block-no-single-line"
+
+const messages = ruleMessages(ruleName, {
+  rejected: "Unexpected single-line block",
+})
+
+const rule = function (actual) {
+  return (root, result) => {
+    const validOptions = validateOptions(result, ruleName, { actual })
+    if (!validOptions) {
+      return
+    }
+
+    result.warn((
+      "'block-no-single-line' has been deprecated and in 8.0 will be removed. " +
+      "Instead use 'block-opening-brace-newline-after' and 'block-closing-brace-newline-before' with the \"always\" option."
+    ), {
+      stylelintType: "deprecation",
+      stylelintReference: "https://stylelint.io/user-guide/rules/block-no-single-line/",
+    })
+
+    // Check both kinds of statements: rules and at-rules
+    root.walkRules(check)
+    root.walkAtRules(check)
+
+    function check(statement) {
+      if (
+        !hasBlock(statement)
+        || hasEmptyBlock(statement)
+      ) {
+        return
+      }
+      if (!isSingleLineString(blockString(statement))) {
+        return
+      }
+
+      report({
+        message: messages.rejected,
+        node: statement,
+        index: beforeBlockString(statement, { noRawBefore: true }).length,
+        result,
+        ruleName,
+      })
+    }
+  }
+}
+
+rule.ruleName = ruleName
+rule.messages = messages
+module.exports = rule