Website Structure

Frontend-Learner/node_modules/eslint-plugin-regexp/dist/rules/confusing-quantifier.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const regexp_ast_analysis_1 = require("regexp-ast-analysis");
+const utils_1 = require("../utils");
+const regexp_ast_1 = require("../utils/regexp-ast");
+exports.default = (0, utils_1.createRule)("confusing-quantifier", {
+    meta: {
+        docs: {
+            description: "disallow confusing quantifiers",
+            category: "Best Practices",
+            recommended: true,
+            default: "warn",
+        },
+        schema: [],
+        messages: {
+            confusing: "This quantifier is confusing because its minimum is {{min}} but it can match the empty string. Maybe replace it with `{{proposal}}` to reflect that it can match the empty string?",
+        },
+        type: "problem",
+    },
+    create(context) {
+        function createVisitor({ node, flags, getRegexpLocation, }) {
+            return {
+                onQuantifierEnter(qNode) {
+                    if (qNode.min > 0 &&
+                        (0, regexp_ast_analysis_1.isPotentiallyEmpty)(qNode.element, flags)) {
+                        const proposal = (0, regexp_ast_1.quantToString)({ ...qNode, min: 0 });
+                        context.report({
+                            node,
+                            loc: getRegexpLocation(qNode, (0, regexp_ast_1.getQuantifierOffsets)(qNode)),
+                            messageId: "confusing",
+                            data: {
+                                min: String(qNode.min),
+                                proposal,
+                            },
+                        });
+                    }
+                },
+            };
+        }
+        return (0, utils_1.defineRegexpVisitor)(context, {
+            createVisitor,
+        });
+    },
+});