57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
|
/**
|
||
|
|
* @fileoverview Rule to flag octal escape sequences in string literals.
|
||
|
|
* @author Ian Christian Myers
|
||
|
|
*/
|
||
|
|
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
// Rule Definition
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/** @type {import('../shared/types').Rule} */
|
||
|
|
module.exports = {
|
||
|
|
meta: {
|
||
|
|
type: "suggestion",
|
||
|
|
|
||
|
|
docs: {
|
||
|
|
description: "disallow octal escape sequences in string literals",
|
||
|
|
recommended: false,
|
||
|
|
url: "https://eslint.org/docs/rules/no-octal-escape"
|
||
|
|
},
|
||
|
|
|
||
|
|
schema: [],
|
||
|
|
|
||
|
|
messages: {
|
||
|
|
octalEscapeSequence: "Don't use octal: '\\{{sequence}}'. Use '\\u....' instead."
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
create(context) {
|
||
|
|
|
||
|
|
return {
|
||
|
|
|
||
|
|
Literal(node) {
|
||
|
|
if (typeof node.value !== "string") {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// \0 represents a valid NULL character if it isn't followed by a digit.
|
||
|
|
const match = node.raw.match(
|
||
|
|
/^(?:[^\\]|\\.)*?\\([0-3][0-7]{1,2}|[4-7][0-7]|0(?=[89])|[1-7])/su
|
||
|
|
);
|
||
|
|
|
||
|
|
if (match) {
|
||
|
|
context.report({
|
||
|
|
node,
|
||
|
|
messageId: "octalEscapeSequence",
|
||
|
|
data: { sequence: match[1] }
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
};
|