Incorrect handling of "\a" escape sequences in interpolations.

[andrew-skybound]

Here are some fun whitespace bugs for you on your Friday night gentlemen.

Input:

$input: "\0_\a_\A";

test {
    bug1: "#{"_\a" + b}";
    bug2: "#{a $input}";
}

Ruby SASS 3.4.18:

@charset "UTF-8";
test {
  bug1: "_\a b";
  bug2: "a �_ _ ";
}

Libsass 3.3.2-32-gb2a3:

@charset "UTF-8";
test {
  bug1: "_\ab";
  bug2: "a �_\a_\a";
}

[xzyfer]

Thanks for the report @andrew-skybound.

Spec added sass/sass-spec#647

[mgreter]

Pretty sure this has something to do that \a is interpreted as \x0A which is \r.

[mgreter]

I think the main bug is fixed with #1880.
But there is another strange one which I fail to see the logic:

test {
    test-1: "#{'\a'}";
    test-1: "#{x '\a'}";
    test-1: "#{x + '\a'}";
}

Ruby sass:

test {
  test-1: "\a";
  test-1: "x  ";
  test-1: "x\a"; }

Libsass

test {
  test-1: "\a";
  test-1: "x \a";
  test-1: "x\a"; }

Might be a ruby sass bug ...