Exposed percision settings

[huangyq23]

We are moving from the sass gem to sassc-ruby gem and found precision setting was missing from the API binding.

Our use case needs this to keep the output consistent.

[bolandrm]

Hello!

can you please add a test demonstrating what happens if precision is not set?

i.e.

def test_precision_not_specified
  template = <<-SCSS
$var: 1;
.foo {
  baz: $var / 3; }
SCSS

  expected_output = <<-CSS
.foo {
  baz: ?????? ; } 
CSS

  output = Engine.new(template).render
  assert_equal expected_output, output
end

then i'll merge

[huangyq23]

@bolandrm added.

[bolandrm]

perfect. thanks!

[huangyq23]

@bolandrm what does the release process work for this gem? I am fine with locking it down to a git commit, but it would be nice if we get a actual version to reference in Gemfile.

[bolandrm]

@huangyq23 I released 1.7.0 for you.

[huangyq23]

Nice, thanks!

[printercu]

Can this one be used with sassc-rails? Maybe something like SassC::Engine.precision = 8?