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6 | "use strict";
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11 |
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12 | module.exports = {
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13 | meta: {
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14 | docs: {
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15 | description: "disallow octal escape sequences in string literals",
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16 | category: "Best Practices",
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17 | recommended: false
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18 | },
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19 |
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20 | schema: []
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21 | },
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22 |
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23 | create(context) {
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24 |
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25 | return {
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26 |
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27 | Literal(node) {
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28 | if (typeof node.value !== "string") {
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29 | return;
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30 | }
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31 |
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32 | const match = node.raw.match(/^([^\\]|\\[^0-7])*\\([0-3][0-7]{1,2}|[4-7][0-7]|[0-7])/);
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33 |
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34 | if (match) {
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35 | const octalDigit = match[2];
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36 |
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37 |
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38 | if (match[2] !== "0" || typeof match[3] !== "undefined") {
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39 | context.report({ node, message: "Don't use octal: '\\{{octalDigit}}'. Use '\\u....' instead.", data: { octalDigit } });
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40 | }
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41 | }
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42 | }
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43 |
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44 | };
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45 |
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46 | }
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47 | };
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