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

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+# value-no-vendor-prefix
+
+Disallow vendor prefixes for values.
+
+```css
+a { display: -webkit-flex; }
+/**          ↑
+ *  These prefixes */
+```
+
+This rule will only warn for prefixed *standard* values, and not for prefixed *proprietary* or *unknown* ones.
+
+## Options
+
+### `true`
+
+The following patterns are considered warnings:
+
+```css
+a { display: -webkit-flex; }
+```
+
+```css
+a { max-width: -moz-max-content; }
+```
+
+```css
+a { background: -webkit-linear-gradient(bottom, #000, #fff); }
+```
+
+The following patterns are *not* considered warnings:
+
+```css
+a { display: flex; }
+```
+
+```css
+a { max-width: max-content; }
+```
+
+```css
+a { background: linear-gradient(bottom, #000, #fff); }
+```

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

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+"use strict"
+
+const isAutoprefixable = require("../../utils/isAutoprefixable")
+const isStandardSyntaxDeclaration = require("../../utils/isStandardSyntaxDeclaration")
+const isStandardSyntaxProperty = require("../../utils/isStandardSyntaxProperty")
+const report = require("../../utils/report")
+const ruleMessages = require("../../utils/ruleMessages")
+const validateOptions = require("../../utils/validateOptions")
+const styleSearch = require("style-search")
+
+const ruleName = "value-no-vendor-prefix"
+
+const messages = ruleMessages(ruleName, {
+  rejected: value => `Unexpected vendor-prefix "${value}"`,
+})
+
+const valuePrefixes = [
+  "-webkit-",
+  "-moz-",
+  "-ms-",
+  "-o-",
+]
+
+const rule = function (actual) {
+  return (root, result) => {
+    const validOptions = validateOptions(result, ruleName, { actual })
+    if (!validOptions) {
+      return
+    }
+
+    root.walkDecls(decl => {
+      if (!isStandardSyntaxDeclaration(decl) || !isStandardSyntaxProperty(decl.prop) || decl.value[0] !== "-") {
+        return
+      }
+
+      const prop = decl.prop,
+        value = decl.value
+
+      // Search the full declaration in order to get an accurate index
+
+      styleSearch({ source: value.toLowerCase(), target: valuePrefixes }, match => {
+        const fullIdentifier = /^(-[a-z-]+)\b/i.exec(value.slice(match.startIndex))[1]
+        if (!isAutoprefixable.propertyValue(prop, fullIdentifier)) {
+          return
+        }
+
+        report({
+          message: messages.rejected(fullIdentifier),
+          node: decl,
+          index: prop.length + (decl.raws.between || "").length + match.startIndex,
+          result,
+          ruleName,
+        })
+      })
+    })
+  }
+}
+
+rule.ruleName = ruleName
+rule.messages = messages
+module.exports = rule