eslint-plugin-regexp
Version:
ESLint plugin for finding RegExp mistakes and RegExp style guide violations.
61 lines (60 loc) • 2.32 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const utils_1 = require("../utils");
const regex_syntax_1 = require("../utils/regex-syntax");
exports.default = (0, utils_1.createRule)("no-octal", {
meta: {
docs: {
description: "disallow octal escape sequence",
category: "Best Practices",
recommended: false,
},
schema: [],
messages: {
unexpected: "Unexpected octal escape sequence '{{expr}}'.",
replaceHex: "Replace the octal escape sequence with a hexadecimal escape sequence.",
},
type: "suggestion",
hasSuggestions: true,
},
create(context) {
function createVisitor({ node, fixReplaceNode, getRegexpLocation, }) {
return {
onCharacterEnter(cNode) {
if (cNode.raw === "\\0") {
return;
}
if (!(0, regex_syntax_1.isOctalEscape)(cNode.raw)) {
return;
}
const report = cNode.raw.startsWith("\\0") ||
!(cNode.parent.type === "CharacterClass" ||
cNode.parent.type === "CharacterClassRange");
if (report) {
context.report({
node,
loc: getRegexpLocation(cNode),
messageId: "unexpected",
data: {
expr: cNode.raw,
},
suggest: [
{
messageId: "replaceHex",
fix: fixReplaceNode(cNode, () => {
return `\\x${cNode.value
.toString(16)
.padStart(2, "0")}`;
}),
},
],
});
}
},
};
}
return (0, utils_1.defineRegexpVisitor)(context, {
createVisitor,
});
},
});