Add support for multiline value

[alienlebarge]

About

For those who like to write calc() on multilines or use a max-line-length rules in their CSS linter.

Tests

I wrote some tests for this.
@MoOx can you have a look ? I'm not realy sure if I've done it right.

multiline.css

multiline {
    font-size: calc(
                       1rem
                       * 2
                       * 1.5
                   );
    width: calc(1px +
      10px
      + 100px );
    height: calc(
2em
    + 20em + 200em);
    padding: calc(30px
      + 3px ) calc(
2px *
2
+40 px
        );
}

multiline.expected.css

multiline {
    font-size: 3rem;
    width: 111px;
    height: 222em;
    padding: 33px 44px;
}

Related issue(s)

• close Support for multiline calc() #26

[alienlebarge]

Did I have to add some examples in the README.md ?

[MoOx]

Released as 5.2.1