Initial commit

node_modules/stylelint/lib/rules/function-name-case/index.js

@@ -0,0 +1,88 @@
+"use strict"
+
+const declarationValueIndex = require("../../utils/declarationValueIndex")
+const isStandardSyntaxFunction = require("../../utils/isStandardSyntaxFunction")
+const matchesStringOrRegExp = require("../../utils/matchesStringOrRegExp")
+const report = require("../../utils/report")
+const ruleMessages = require("../../utils/ruleMessages")
+const validateOptions = require("../../utils/validateOptions")
+const keywordSets = require("../../reference/keywordSets")
+const _ = require("lodash")
+const valueParser = require("postcss-value-parser")
+
+const ruleName = "function-name-case"
+
+const messages = ruleMessages(ruleName, {
+  expected: (actual, expected) => `Expected "${actual}" to be "${expected}"`,
+})
+
+const mapLowercaseFunctionNamesToCamelCase = new Map()
+keywordSets.camelCaseFunctionNames.forEach(func => {
+  mapLowercaseFunctionNamesToCamelCase.set(func.toLowerCase(), func)
+})
+
+const rule = function (expectation, options) {
+  return (root, result) => {
+    const validOptions = validateOptions(result, ruleName, {
+      actual: expectation,
+      possible: [
+        "lower",
+        "upper",
+      ],
+    }, {
+      actual: options,
+      possible: {
+        ignoreFunctions: [_.isString],
+      },
+      optional: true,
+    })
+    if (!validOptions) {
+      return
+    }
+
+    root.walkDecls(decl => {
+      const value = decl.value
+
+      valueParser(value).walk(function (node) {
+        if (node.type !== "function" || !isStandardSyntaxFunction(node)) {
+          return
+        }
+
+        const functionName = node.value
+        const functionNameLowerCase = functionName.toLowerCase()
+
+        const ignoreFunctions = options && options.ignoreFunctions || []
+
+        if (ignoreFunctions.length > 0 && matchesStringOrRegExp(functionName, ignoreFunctions)) {
+          return
+        }
+
+        let expectedFunctionName = null
+
+        if (expectation === "lower" && mapLowercaseFunctionNamesToCamelCase.has(functionNameLowerCase)) {
+          expectedFunctionName = mapLowercaseFunctionNamesToCamelCase.get(functionNameLowerCase)
+        } else if (expectation === "lower") {
+          expectedFunctionName = functionNameLowerCase
+        } else {
+          expectedFunctionName = functionName.toUpperCase()
+        }
+
+        if (functionName === expectedFunctionName) {
+          return
+        }
+
+        report({
+          message: messages.expected(functionName, expectedFunctionName),
+          node: decl,
+          index: declarationValueIndex(decl) + node.sourceIndex,
+          result,
+          ruleName,
+        })
+      })
+    })
+  }
+}
+
+rule.ruleName = ruleName
+rule.messages = messages
+module.exports = rule