59 lines
2.3 KiB
JavaScript
59 lines
2.3 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const utils_1 = require("../utils");
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exports.default = (0, utils_1.createRule)("no-useless-range", {
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meta: {
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docs: {
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description: "disallow unnecessary character ranges",
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category: "Best Practices",
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recommended: true,
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},
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fixable: "code",
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schema: [],
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messages: {
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unexpected: "Unexpected unnecessary character ranges. The hyphen is unnecessary.",
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},
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type: "suggestion",
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},
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create(context) {
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function createVisitor({ node, fixReplaceNode, getRegexpLocation, }) {
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return {
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onCharacterClassRangeEnter(ccrNode) {
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if (ccrNode.min.value !== ccrNode.max.value &&
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ccrNode.min.value + 1 !== ccrNode.max.value) {
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return;
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}
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context.report({
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node,
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loc: getRegexpLocation(ccrNode),
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messageId: "unexpected",
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fix: fixReplaceNode(ccrNode, () => {
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const parent = ccrNode.parent;
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const rawBefore = parent.raw.slice(0, ccrNode.start - parent.start);
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const rawAfter = parent.raw.slice(ccrNode.end - parent.start);
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if (/\\(?:x[\dA-Fa-f]?|u[\dA-Fa-f]{0,3})?$/u.test(rawBefore)) {
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return null;
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}
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let text = ccrNode.min.raw;
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if (ccrNode.min.value < ccrNode.max.value) {
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if (ccrNode.max.raw === "-") {
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text += `\\-`;
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}
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else {
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text += `${ccrNode.max.raw}`;
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}
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}
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if (rawAfter.startsWith("-")) {
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text += "\\";
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}
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return text;
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}),
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});
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},
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};
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}
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return (0, utils_1.defineRegexpVisitor)(context, {
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createVisitor,
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});
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},
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});
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