Bug: no-warning-comments does not work with multiline comments

There is exact same issue, that marked as resolved, but it seems there is regression?

Previous issue: https://github.com/eslint/eslint/issues/9884

I will copy description from linked issue, except I’ve updated the environment.

I’m going to report using the online demo rather than my own project, so that anyone else can reproduce this bug as well. It happens in the online demo. https://eslint.org/demo

Direct link to the demo

Environment

Node version: 18.2.0 npm version: 8.9.0 Local ESLint version: 8.13.0 Global ESLint version: 8.13.0 Operating System: macOS 12.4

What parser are you using?

@babel/eslint-parser

What did you do?

Configuration

{
    "parserOptions": {
        "ecmaVersion": 5,
        "sourceType": "script",
        "ecmaFeatures": {}
    },
    "rules": {
        "constructor-super": 2,
        "no-case-declarations": 2,
        "no-class-assign": 2,
        "no-compare-neg-zero": 2,
        "no-cond-assign": 2,
        "no-console": 2,
        "no-const-assign": 2,
        "no-constant-condition": 2,
        "no-control-regex": 2,
        "no-debugger": 2,
        "no-delete-var": 2,
        "no-dupe-args": 2,
        "no-dupe-class-members": 2,
        "no-dupe-keys": 2,
        "no-duplicate-case": 2,
        "no-empty-character-class": 2,
        "no-empty-pattern": 2,
        "no-empty": 2,
        "no-ex-assign": 2,
        "no-extra-boolean-cast": 2,
        "no-extra-semi": 2,
        "no-fallthrough": 2,
        "no-func-assign": 2,
        "no-global-assign": 2,
        "no-inner-declarations": 2,
        "no-invalid-regexp": 2,
        "no-irregular-whitespace": 2,
        "no-mixed-spaces-and-tabs": 2,
        "no-new-symbol": 2,
        "no-obj-calls": 2,
        "no-octal": 2,
        "no-redeclare": 2,
        "no-regex-spaces": 2,
        "no-self-assign": 2,
        "no-sparse-arrays": 2,
        "no-this-before-super": 2,
        "no-undef": 2,
        "no-unexpected-multiline": 2,
        "no-unreachable": 2,
        "no-unsafe-finally": 2,
        "no-unsafe-negation": 2,
        "no-unused-labels": 2,
        "no-unused-vars": 2,
        "no-useless-escape": 2,
        "require-yield": 2,
        "use-isnan": 2,
        "valid-typeof": 2,
        "no-warning-comments": 2
    },
    "env": {}
}

/**
 * todo
 */

/*
 * todo
 */

// todo

var foo = bar;

Run it in the online demo.

What did you expect to happen?

The sections

/*
 * todo
 */

and

/**
 * todo
 */

should be flagged for no-warning-comments.

What actually happened?

Only

// todo

is flagged for no-warning-comments.

Participation

• I am willing to submit a pull request for this issue.

[mdjermanovic]

I agree that this should be fixed by adding a new option.

The option could accept an array of characters to (optionally) skip at the start of the comment when checking whether it starts with disallowed terms? Similar to https://github.com/eslint/eslint/issues/16103#issuecomment-1180304234:

"no-warning-comments": [1, {
    terms: ["TODO"],
    location: "start",
    commentDecorationChars: ["*"]
}]

These characters would be added to the prefix part of the pattern (in the above example, prefix would be "^[\\s*]*") so that they can also appear at the start of configured terms.

[mdjermanovic]

Hi @Reeywhaar, thanks for the issue!

We were just discussing this in https://github.com/eslint/eslint/pull/16090, and it doesn’t seem that the original issue https://github.com/eslint/eslint/issues/9884 was actually resolved at the time.

/*
 * todo
 */

and

/**
 * todo
 */

should be flagged for no-warning-comments.

I agree that this rule should treat these two comments as starting with ‘todo’ despite the extra * characters. But since the original issue was closed a long time ago, I would like more opinions from the team, especially because this change can produce more warnings.