Missing special case calc handling for -ms-calc()

[xtianus79]

Special case calc handling needs to be implemented for the -ms-calc() function to prevent Incompatible units errors.

foo {
  foo: -ms-calc(100% - 100px);
}

expected

foo {
  foo: -ms-calc(100% - 100px); }

actual

Incompatible units: 'px' and '%'

edited by @xzyfer for clarification

[xzyfer]

Can you please create a http://sassmeister.com/ the shows the issue?

[umyeah]

I ran into this issue as well when trying to do width: -ms-calc(100% - 100px);

This is happening to me when using libsass 3.1.0 on sassmeister as well as when using node-sass version 2.0.1 (not sure what version of libsass that is using)

[xzyfer]

Thanks for the clarification @umyeah. I can confirm that this issue is still present on master.

[am11]

@umyeah, you can check the version of node-sass and corresponding version of libsass as follow:

CLI usage:

node-sass --help

Code usage:

require('node-sass').info()

node-sass v2.0.1 corresponds to libsass v3.1.0.

[xzyfer]

I've confirmed this is still an issue on master.

[xzyfer]

Spec added sass/sass-spec#264

[xzyfer]

This is fixed and will be in 3.2