Software zum Installieren eines Smart-Mirror Frameworks , zum Nutzen von hochschulrelevanten Informationen, auf einem Raspberry-Pi.
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max-nesting-depth

Limit the depth of nesting.

a { & > b { top: 0; } }
/** ↑
 * This nesting */

This rule works by checking rules’ and at-rules’ actual “nesting depth” against your specified max. Here’s how nesting depths works:

a {
  & b { /* nesting depth 1 */
    & .foo { /* nesting depth 2 */
      @media print { /* nesting depth 3 */
        & .baz { /* nesting depth 4 */
          color: pink;
        }
      }
    }
  }
}

Note that root-level at-rules will not be included in the nesting depth calculation, because most users would take for granted that root-level at-rules are “free” (because necessary). So both of the following .foo rules have a nesting depth of 2, and will therefore pass if your max is less than or equal to 2:

a {
  b { /* 1 */
    .foo {} /* 2 */
  }
}

@media print { /* ignored */
  a {
    b { /* 1 */
      .foo {} /* 2 */
    }
  }
}

This rule integrates into stylelint’s core the functionality of the (now deprecated) plugin stylelint-statement-max-nesting-depth.

Options

int: Maximum nesting depth allowed.

For example, with 2:

The following patterns are considered violations:

a {
  & .foo { /* 1 */
    &__foo { /* 2 */
      & > .bar {} /* 3 */
    }
  }
}
a {
  @media print { /* 1 */
    & .foo { /* 2 */
      & .bar {} /* 3 */
    }
  }
}

The following patterns are not considered violations:

a {
  & .foo { /* 1 */
    &__foo {} /* 2 */
  }
}

a .foo__foo .bar .baz {}
@media print {
  a {
    & .foo { /* 1 */
      &__foo {} /* 2 */
    }
  }
}

Optional secondary options

ignore: ["blockless-at-rules"]

Ignore at-rules that only wrap other rules, and do not themselves have declaration blocks.

For example, with 1:

The following patterns are considered violations:

As the at-rules have a declarations blocks.

a {
  &:hover { /* 1 */
    @media (min-width: 500px) { color: pink; } /* 2 */
  }
}
a {
  @nest > b { /* 1 */
    .foo { color: pink; } /* 2 */
  }
}

The following patterns are not considered violations:

As all of the following .foo rules would have a nesting depth of just 1.

a {
  .foo { color: pink; } /* 1 */
}
@media print { /* ignored regardless of options */
  a {
    .foo { color: pink; } /* 1 */
  }
}
a {
  @media print { /* ignored because it's an at-rule without a declaration block of its own */
    .foo { color: pink; } /* 1 */
  }
}

ignore: ["pseudo-classes"]

Ignore rules where the first selector in each selector list item is a pseudo-class

For example, with 1:

The following patterns are considered violations:

.a {
  .b { /* 1 */
    .c { /* 2 */
      top: 0;
    }
  }
}
.a {
  &:hover { /* ignored */
    .b { /* 1 */
      .c { /* 2 */
        top: 0;
      }
    }
  }
}
.a {
  .b { /* 1 */
    &::selection { /* 2 */
      color: #64FFDA;
    }
  }
}
.a {
  .b { /* 1 */
    &:hover, .c { /* 2 */
      top: 0;
    }
  }
}

The following patterns are not considered violations:

As all of the following pseudoclasses rules would have a nesting depth of just 1.

.a {
  .b { /* 1 */
    &:hover { /* ignored */
      top: 0;
    }
  }
}
.a {
  .b { /* 1 */
    &:nest {
      &:nest-lvl2 {  /* ignored */
        top: 0;
      }
    }
  }
}
.a {
  &:hover {  /* ignored */
    .b { /* 1 */
      top: 0;
    }
  }
}
.a {
  &:nest {  /* ignored */
    &:nest-lvl2 {  /* ignored */
      top: 0;
      .b { /* 1 */
        bottom: 0;
      }
    }
  }
}
.a {
  .b { /* 1 */
    &:hover, &:focus {  /* ignored */
      top: 0;
    }
  }
}

ignoreAtRules: ["/regex/", /regex/, "string"]

Ignore the specified at-rules.

For example, with 1 and given:

["/^my-/", "media"]

The following patterns are not considered violations:

a {
  @media print {      /* 1 */
    b {               /* 2 */
      c { top: 0; }   /* 3 */
    }
  }
}
a {
  b {                 /* 1 */
    @media print {    /* 2 */
      c { top: 0; }   /* 3 */
    }
  }
}
a {
  @my-at-rule print {  /* 1 */
    b {                /* 2 */
      c { top: 0; }    /* 3 */
    }
  }
}
a {
  @my-other-at-rule print {  /* 1 */
    b {                      /* 2 */
      c { top: 0; }          /* 3 */
    }
  }
}

The following patterns are considered violations:

a {
  @import print {       /* 1 */
    b { top: 0; }       /* 2 */
  }
}
a {
  @not-my-at-rule print {   /* 1 */
    b { top: 0; }       /* 2 */
  }
}