Re: [Sass] Reading defined variables from functions, or calling functions without using return value

[Chris Eppstein]

The way to accomplish this is with variable defaults. In the file that defines the generate-custom-background() function you would define the config variable yourself with the !default flag:

$some-config-var: red !default;

Then you can use it in your functions. If the downstream stylesheet sets this either before or after the import, it will still be blue because the value of red is only assigned when the variable is not already set.

-Chris

On Sun, Apr 21, 2013 at 11:10 PM, Gabriel Gilder <gabriel...@gmail.com> wrote:

Hi all,

I'm trying to figure out a good way to allow custom configuration of a Sass plugin I'm building. The two options that spring to mind are reading special variables defined in the SASS stylesheet, or providing custom functions for configuration. But both have problems.

For example, in a user's stylesheet:

$some-config-var: blue

.someclass

  background: generate-custom-background()

Assuming "generate-custom-background" is a custom function, is there a way for it to determine that the stylesheet defines the variable "$some-config-var"? It seems like Compass does something like this for sprites, but I haven't had much luck puzzling through the source to figure out how.

As an alternate approach, is there any way to allow a custom function to not output anything? I'd like to have something like:

configure-custom-var(blue)

But that attempts to parse whatever value is returned as CSS.

Any help would be appreciated!

Thanks,

-Gabriel

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