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node_modules/stylelint/lib/rules/declaration-block-semicolon-newline-before/README.md

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+# declaration-block-semicolon-newline-before
+
+Require a newline or disallow whitespace before the semicolons of declaration blocks.
+
+```css
+  a {
+    color: pink
+    ; top: 0;
+  } ↑
+/** ↑
+ * The newline before this semicolon */
+```
+
+This rule ignores semicolons that are preceded by Less mixins.
+
+## Options
+
+`string`: `"always"|"always-multi-line"|"never-multi-line"`
+
+### `"always"`
+
+There *must always* be a newline before the semicolons.
+
+The following patterns are considered warnings:
+
+```css
+a { color: pink; }
+```
+
+```css
+a {
+  color: pink; top: 0;
+}
+```
+
+The following patterns are *not* considered warnings:
+
+```css
+a { color: pink
+; }
+```
+
+```css
+a {
+  color: pink
+  ; top: 0;
+}
+```
+
+### `"always-multi-line"`
+
+There *must always* be a newline before the semicolons in multi-line rules.
+
+The following patterns are considered warnings:
+
+```css
+a {
+  color: pink; top: 0;
+}
+```
+
+The following patterns are *not* considered warnings:
+
+```css
+a { color: pink; }
+```
+
+```css
+a { color: pink; top: 0; }
+```
+
+```css
+a {
+  color: pink
+  ; top: 0;
+}
+```
+
+### `"never-multi-line"`
+
+There *must never* be whitespace before the semicolons in multi-line rules.
+
+The following patterns are considered warnings:
+
+```css
+a {
+  color: pink
+  ; top: 0;
+}
+```
+
+The following patterns are *not* considered warnings:
+
+```css
+a { color: pink; }
+```
+
+```css
+a { color: pink; top: 0; }
+```
+
+```css
+a {
+  color: pink;
+  top: 0;
+}
+```

node_modules/stylelint/lib/rules/declaration-block-semicolon-newline-before/index.js

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+"use strict"
+
+const blockString = require("../../utils/blockString")
+const report = require("../../utils/report")
+const ruleMessages = require("../../utils/ruleMessages")
+const validateOptions = require("../../utils/validateOptions")
+const whitespaceChecker = require("../../utils/whitespaceChecker")
+
+const ruleName = "declaration-block-semicolon-newline-before"
+
+const messages = ruleMessages(ruleName, {
+  expectedBefore: () => "Expected newline before \";\"",
+  expectedBeforeMultiLine: () => "Expected newline before \";\" in a multi-line declaration block",
+  rejectedBeforeMultiLine: () => "Unexpected whitespace before \";\" in a multi-line declaration block",
+})
+
+const rule = function (expectation) {
+  const checker = whitespaceChecker("newline", expectation, messages)
+
+  return function (root, result) {
+    const validOptions = validateOptions(result, ruleName, {
+      actual: expectation,
+      possible: [
+        "always",
+        "always-multi-line",
+        "never-multi-line",
+      ],
+    })
+    if (!validOptions) {
+      return
+    }
+
+    root.walkDecls(function (decl) {
+      const parentRule = decl.parent
+      if (
+        !parentRule.raws.semicolon
+        && parentRule.last === decl
+      ) {
+        return
+      }
+
+      const declString = decl.toString()
+
+      checker.beforeAllowingIndentation({
+        source: declString,
+        index: declString.length,
+        lineCheckStr: blockString(parentRule),
+        err: m => {
+          report({
+            message: m,
+            node: decl,
+            index: decl.toString().length - 1,
+            result,
+            ruleName,
+          })
+        },
+      })
+    })
+  }
+}
+
+rule.ruleName = ruleName
+rule.messages = messages
+module.exports = rule