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node_modules/stylelint/lib/rules/selector-no-vendor-prefix/README.md

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+# selector-no-vendor-prefix
+
+Disallow vendor prefixes for selectors.
+
+```css
+input::-moz-placeholder {}
+/**     ↑
+ * These prefixes */
+```
+
+This rule does not blanketly condemn vendor prefixes. Instead, it uses [Autoprefixer's](https://github.com/postcss/autoprefixer) up-to-date data (from [caniuse.com](http://caniuse.com/)) to know whether a vendor prefix should cause a warning or not. *If you've included a vendor prefixed selector that has a standard alternative, one that Autoprefixer could take care of for you, this rule will warn about it*. If, however, you use a non-standard vendor-prefixed selector, one that Autoprefixer would ignore and could not provide, this rule will ignore it.
+
+## Options
+
+### `true`
+
+The following patterns are considered warnings:
+
+```css
+input::-moz-placeholder {}
+```
+
+```css
+:-webkit-full-screen a {}
+```
+
+The following patterns are *not* considered warnings:
+
+```css
+input::placeholder {}
+```
+
+```css
+:full-screen a {}
+```

node_modules/stylelint/lib/rules/selector-no-vendor-prefix/index.js

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+"use strict"
+
+const isAutoprefixable = require("../../utils/isAutoprefixable")
+const isStandardSyntaxRule = require("../../utils/isStandardSyntaxRule")
+const isStandardSyntaxSelector = require("../../utils/isStandardSyntaxSelector")
+const parseSelector = require("../../utils/parseSelector")
+const report = require("../../utils/report")
+const ruleMessages = require("../../utils/ruleMessages")
+const validateOptions = require("../../utils/validateOptions")
+
+const ruleName = "selector-no-vendor-prefix"
+
+const messages = ruleMessages(ruleName, {
+  rejected: selector => `Unexpected vendor-prefix "${selector}"`,
+})
+
+const rule = function (actual) {
+  return (root, result) => {
+    const validOptions = validateOptions(result, ruleName, { actual })
+    if (!validOptions) {
+      return
+    }
+
+    root.walkRules(rule => {
+      if (!isStandardSyntaxRule(rule)) {
+        return
+      }
+      const selector = rule.selector
+
+      if (!isStandardSyntaxSelector(selector)) {
+        return
+      }
+      parseSelector(selector, result, rule, selectorTree => {
+        selectorTree.walkPseudos(pseudoNode => {
+          if (isAutoprefixable.selector(pseudoNode.value)) {
+            report({
+              result,
+              ruleName,
+              message: messages.rejected(pseudoNode.value),
+              node: rule,
+              index: (rule.raws.before || "").length + pseudoNode.sourceIndex,
+            })
+          }
+        })
+      })
+    })
+  }
+}
+
+rule.ruleName = ruleName
+rule.messages = messages
+module.exports = rule