lineBreak does not respect indentation

[MoOx]

@custom-selector :--heading h1, h2, h3, h4, h5, h6;

  article :--heading + p { 
    margin-top: 0;
  }

output

article h1 + p,
article h2 + p,
article h3 + p { 
    margin-top: 0;
  }

but should output

  article h1 + p,
  article h2 + p,
  article h3 + p { 
    margin-top: 0;
  }

You probably just need to join selector with \n + rule.before

[yisibl]

This test case? https://github.com/postcss/postcss-custom-selectors/blob/master/test/fixtures/heading/output.css

[MoOx]

Selector is not indented here, please just double check the code I wrote :)

[yisibl]

OK, I see.

[MoOx]

Here I joined selectors using rule.before https://github.com/postcss/postcss-selector-matches/blob/fcd0a36a9f9c9cdc67c3683fae95302d4544816c/src/index.js#L56

[yisibl]

Fix: 74ee82e

@MoOx Please check the code.

[MoOx]

looks like it's a good start :)

[yisibl]

We must used reBLANK_LINE to remove the extra blank line.