eslint-plugin-regexp
Version:
ESLint plugin for finding RegExp mistakes and RegExp style guide violations.
69 lines (68 loc) • 2.76 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const utils_1 = require("../utils");
const char_ranges_1 = require("../utils/char-ranges");
const mention_1 = require("../utils/mention");
const regex_syntax_1 = require("../utils/regex-syntax");
exports.default = (0, utils_1.createRule)("no-obscure-range", {
meta: {
docs: {
description: "disallow obscure character ranges",
category: "Best Practices",
recommended: true,
},
schema: [
{
type: "object",
properties: {
allowed: (0, char_ranges_1.getAllowedCharValueSchema)(),
},
additionalProperties: false,
},
],
messages: {
unexpected: "Unexpected obscure character range. The characters of {{range}} are not obvious.",
},
type: "suggestion",
},
create(context) {
var _a;
const allowedRanges = (0, char_ranges_1.getAllowedCharRanges)((_a = context.options[0]) === null || _a === void 0 ? void 0 : _a.allowed, context);
function createVisitor({ node, getRegexpLocation, }) {
return {
onCharacterClassRangeEnter(rNode) {
const { min, max } = rNode;
if (min.value === max.value) {
return;
}
if ((0, regex_syntax_1.isControlEscape)(min.raw) && (0, regex_syntax_1.isControlEscape)(max.raw)) {
return;
}
if ((0, regex_syntax_1.isOctalEscape)(min.raw) && (0, regex_syntax_1.isOctalEscape)(max.raw)) {
return;
}
if (((0, regex_syntax_1.isHexLikeEscape)(min.raw) || min.value === 0) &&
(0, regex_syntax_1.isHexLikeEscape)(max.raw)) {
return;
}
if (!(0, regex_syntax_1.isEscapeSequence)(min.raw) &&
!(0, regex_syntax_1.isEscapeSequence)(max.raw) &&
(0, char_ranges_1.inRange)(allowedRanges, min.value, max.value)) {
return;
}
context.report({
node,
loc: getRegexpLocation(rNode),
messageId: "unexpected",
data: {
range: (0, mention_1.mentionChar)(rNode),
},
});
},
};
}
return (0, utils_1.defineRegexpVisitor)(context, {
createVisitor,
});
},
});