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qwen/nodejs/node_modules/eslint/lib/rules/no-octal-escape.js

@@ -0,0 +1,56 @@
+/**
+ * @fileoverview Rule to flag octal escape sequences in string literals.
+ * @author Ian Christian Myers
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+/** @type {import('../shared/types').Rule} */
+module.exports = {
+    meta: {
+        type: "suggestion",
+
+        docs: {
+            description: "Disallow octal escape sequences in string literals",
+            recommended: false,
+            url: "https://eslint.org/docs/latest/rules/no-octal-escape"
+        },
+
+        schema: [],
+
+        messages: {
+            octalEscapeSequence: "Don't use octal: '\\{{sequence}}'. Use '\\u....' instead."
+        }
+    },
+
+    create(context) {
+
+        return {
+
+            Literal(node) {
+                if (typeof node.value !== "string") {
+                    return;
+                }
+
+                // \0 represents a valid NULL character if it isn't followed by a digit.
+                const match = node.raw.match(
+                    /^(?:[^\\]|\\.)*?\\([0-3][0-7]{1,2}|[4-7][0-7]|0(?=[89])|[1-7])/su
+                );
+
+                if (match) {
+                    context.report({
+                        node,
+                        messageId: "octalEscapeSequence",
+                        data: { sequence: match[1] }
+                    });
+                }
+            }
+
+        };
+
+    }
+};