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Contents
/**
* @fileoverview Rule to flag octal escape sequences in string literals.
* @author Ian Christian Myers
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
meta: {
docs: {
description: "disallow octal escape sequences in string literals",
category: "Best Practices",
recommended: false,
url: "https://eslint.org/docs/rules/no-octal-escape"
},
schema: []
},
create(context) {
return {
Literal(node) {
if (typeof node.value !== "string") {
return;
}
const match = node.raw.match(/^([^\\]|\\[^0-7])*\\([0-3][0-7]{1,2}|[4-7][0-7]|[0-7])/);
if (match) {
const octalDigit = match[2];
// \0 is actually not considered an octal
if (match[2] !== "0" || typeof match[3] !== "undefined") {
context.report({ node, message: "Don't use octal: '\\{{octalDigit}}'. Use '\\u....' instead.", data: { octalDigit } });
}
}
}
};
}
};
Version data entries
43 entries across 43 versions & 1 rubygems