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Frontend-Learner/node_modules/eslint-plugin-regexp/dist/rules/no-useless-lazy.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");
+function makeGreedy({ patternSource }, qNode) {
+    return (fixer) => {
+        if (qNode.greedy) {
+            return null;
+        }
+        const range = patternSource.getReplaceRange({
+            start: qNode.end - 1,
+            end: qNode.end,
+        });
+        if (!range) {
+            return null;
+        }
+        return range.remove(fixer);
+    };
+}
+function getLazyLoc({ getRegexpLocation }, qNode) {
+    const offset = qNode.raw.length - 1;
+    return getRegexpLocation(qNode, [offset, offset + 1]);
+}
+exports.default = (0, utils_1.createRule)("no-useless-lazy", {
+    meta: {
+        docs: {
+            description: "disallow unnecessarily non-greedy quantifiers",
+            category: "Best Practices",
+            recommended: true,
+        },
+        fixable: "code",
+        schema: [],
+        messages: {
+            constant: "Unexpected non-greedy constant quantifier.",
+            possessive: "Unexpected non-greedy constant quantifier. The quantifier is effectively possessive, so it doesn't matter whether it is greedy or not.",
+        },
+        type: "suggestion",
+    },
+    create(context) {
+        function createVisitor(regexpContext) {
+            const { node, flags } = regexpContext;
+            return {
+                onQuantifierEnter(qNode) {
+                    if (qNode.greedy) {
+                        return;
+                    }
+                    if (qNode.min === qNode.max) {
+                        context.report({
+                            node,
+                            loc: getLazyLoc(regexpContext, qNode),
+                            messageId: "constant",
+                            fix: makeGreedy(regexpContext, qNode),
+                        });
+                        return;
+                    }
+                    const matchingDir = (0, regexp_ast_analysis_1.getMatchingDirection)(qNode);
+                    const firstChar = (0, regexp_ast_analysis_1.getFirstConsumedChar)(qNode.element, matchingDir, flags);
+                    if (!firstChar.empty) {
+                        const after = (0, regexp_ast_analysis_1.getFirstCharAfter)(qNode, matchingDir, flags);
+                        if (firstChar.char.isDisjointWith(after.char)) {
+                            context.report({
+                                node,
+                                loc: getLazyLoc(regexpContext, qNode),
+                                messageId: "possessive",
+                                fix: makeGreedy(regexpContext, qNode),
+                            });
+                        }
+                    }
+                },
+            };
+        }
+        return (0, utils_1.defineRegexpVisitor)(context, {
+            createVisitor,
+        });
+    },
+});