node/tools/eslint-rules/non-ascii-character.js
Rich Trott 896e5af1fd tools: remove fixer for non-ascii-character ESLint custom rule
The fixer for non-ascii-character does not typidally do the right thing.
It removes the entire node, not the offending character. I discovered
this when it removed the entire contents of a file and I wasn't sure
which auto-fix rule was doing it.

This commit adds a minimal test for the rule. The tests require that
auto-fix results be supplied, so if someone wants to re-add auto-fixing
to the rule, we'll have tests that it does the right thing.

PR-URL: https://github.com/nodejs/node/pull/38413
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
2021-04-28 10:35:32 -07:00

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This file contains ambiguous Unicode characters

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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 = (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.getSourceCode())
};
};