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Frontend-Learner/node_modules/eslint-plugin-regexp/dist/rules/prefer-unicode-codepoint-escapes.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const utils_1 = require("../utils");
+exports.default = (0, utils_1.createRule)("prefer-unicode-codepoint-escapes", {
+    meta: {
+        docs: {
+            description: "enforce use of unicode codepoint escapes",
+            category: "Stylistic Issues",
+            recommended: true,
+        },
+        fixable: "code",
+        schema: [],
+        messages: {
+            disallowSurrogatePair: "Use Unicode codepoint escapes instead of Unicode escapes using surrogate pairs.",
+        },
+        type: "suggestion",
+    },
+    create(context) {
+        function createVisitor(regexpContext) {
+            const { node, flags, getRegexpLocation, fixReplaceNode } = regexpContext;
+            if (!flags.unicode && !flags.unicodeSets) {
+                return {};
+            }
+            return {
+                onCharacterEnter(cNode) {
+                    if (cNode.value >= 0x10000) {
+                        if (/^(?:\\u[\dA-Fa-f]{4}){2}$/u.test(cNode.raw)) {
+                            context.report({
+                                node,
+                                loc: getRegexpLocation(cNode),
+                                messageId: "disallowSurrogatePair",
+                                fix: fixReplaceNode(cNode, () => {
+                                    let text = String.fromCodePoint(cNode.value)
+                                        .codePointAt(0)
+                                        .toString(16);
+                                    if (/[A-F]/u.test(cNode.raw)) {
+                                        text = text.toUpperCase();
+                                    }
+                                    return `\\u{${text}}`;
+                                }),
+                            });
+                        }
+                    }
+                },
+            };
+        }
+        return (0, utils_1.defineRegexpVisitor)(context, {
+            createVisitor,
+        });
+    },
+});