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max-line-length

Limit the length of a line.

a { color: red }
/**            ↑
 *       The end */

Lines that exceed the maximum length but contain no whitespace (other than at the beginning of the line) are ignored.

When evaluating the line length, the arguments of any url(...) functions are excluded from the calculation, because typically you have no control over the length of these arguments. This means that long url() functions should not contribute to problems.

Options​

int: Maximum number of characters allowed.

For example, with 20:

The following patterns are considered problems:

a { color: 0; top: 0; }
a {
  background: linear-gradient(red, blue);
}

The following patterns are not considered problems:

a {
  color: 0;
  top: 0;
}
a {
  background: url(a-url-that-is-over-20-characters-long);
}

Optional secondary options​

ignore: ["non-comments"]​

Only enforce the line-length limit for lines within comments.

This does not apply to comments that are stuck in between other stuff, only to lines that begin at the beginning or in the middle of a comment.

For example, with a maximum length of 30.

The following patterns are considered problems:

Each have only one problem.

/* This line is too long for my rule */
a { color: pink; background: orange; }
a { color: pink; /* this comment is also long but not on its own line */ }
a { color: pink; background: orange; }
/**
 * This line is short,
 * but this line is too long for my liking,
 * though this one is fine
 */
a { color: pink; /* this comment is also long but not on its own line */ }

ignore: ["comments"]​

Only enforce the line-length limit for lines that are not comments.

This also applies to comments that are between code on the same line.

For example, with a maximum length of 30.

The following patterns are considered problems:

a { color: pink; } /* comment that is too long */
a { /* this comment is too long for the max length */ }

The following patterns are not considered problems:

/* comment that is too long for my rule*/
a { color: pink; }
/*
 * comment that is too long the max length
 * comment that is too long the max length
 *
 */
a { color: pink; }

ignorePattern: "/regex/"​

Ignore any line that matches the given regex pattern, regardless of whether it is comment or not. The regex may be passed as a string (for JSON configuration) by enclosing in forward-slashes, or an ordinary JavaScript RegExp may be used.

Given:

"/^@import\\s+/"

The following pattern is not considered a problem:

@import "../../../../another/css/or/scss/file/or/something.css";

Given the following, with a maximum length of 20.

["/https?://[0-9,a-z]*.*/"];

The following pattern is not considered a problem:

/* ignore urls https://www.example.com */