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nodejs/tools/eslint-rules/non-ascii-character.js
Michaël Zasso 3c1069bb06
tools: prepare custom rules for ESLint v9
Refs: https://eslint.org/docs/latest/use/migrate-to-9.0.0
PR-URL: https://github.com/nodejs/node/pull/52889
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz.nizipli@sentry.io>
2024-05-09 15:27:39 +00:00

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/**
* @fileOverview Any non-ASCII characters in lib/ will increase the size
* of the compiled node binary. This linter rule ensures that
* any such character is reported.
* @author Sarat Addepalli <sarat.addepalli@gmail.com>
*/
'use strict';
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
const nonAsciiRegexPattern = /[^\r\n\x20-\x7e]/;
const suggestions = {
'': '\'',
'': '\'',
'': '\'',
'“': '"',
'‟': '"',
'”': '"',
'«': '"',
'»': '"',
'—': '-',
};
module.exports = {
create(context) {
const reportIfError = (node, sourceCode) => {
const matches = sourceCode.text.match(nonAsciiRegexPattern);
if (!matches) return;
const offendingCharacter = matches[0];
const offendingCharacterPosition = matches.index;
const suggestion = suggestions[offendingCharacter];
let message = `Non-ASCII character '${offendingCharacter}' detected.`;
message = suggestion ?
`${message} Consider replacing with: ${suggestion}` :
message;
context.report({
node,
message,
loc: sourceCode.getLocFromIndex(offendingCharacterPosition),
});
};
return {
Program: (node) => reportIfError(node, context.sourceCode),
};
},
};