57 lines
1.3 KiB
JavaScript
57 lines
1.3 KiB
JavaScript
/**
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* @fileoverview Rule to check for ambiguous div operator in regexes
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* @author Matt DuVall <http://www.mattduvall.com>
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*/
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'use strict';
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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/** @type {import('../types').Rule.RuleModule} */
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module.exports = {
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meta: {
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type: 'suggestion',
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docs: {
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description:
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'Disallow equal signs explicitly at the beginning of regular expressions',
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recommended: false,
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frozen: true,
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url: 'https://eslint.org/docs/latest/rules/no-div-regex',
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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: "A regular expression literal can be confused with '/='.",
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},
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},
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create(context) {
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const sourceCode = context.sourceCode;
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return {
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Literal(node) {
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const token = sourceCode.getFirstToken(node);
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if (token.type === 'RegularExpression' && token.value[1] === '=') {
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context.report({
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node,
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messageId: 'unexpected',
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fix(fixer) {
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return fixer.replaceTextRange(
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[token.range[0] + 1, token.range[0] + 2],
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'[=]'
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);
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},
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});
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}
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},
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};
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},
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};
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